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Mechanical forces between cells and extracellular matrix ( ECM ) influence cell shape and function . Tendons are ECM-rich tissues connecting muscles with bones that bear extreme tensional force . Analysis of transgenic zebrafish expressing mCherry driven by the tendon determinant scleraxis reveals that tendon fibroblas... | Tendons – the fibrous structures that attach muscles to bones – must withstand some of the strongest forces in the body . Little is known about how tendons develop or adapt to withstand these forces . Studies have shown that muscles respond actively to force , as seen during exercise . Do tendons respond in similar way... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology",
"cell",
"biology"
] | 2018 | Mechanical force regulates tendon extracellular matrix organization and tenocyte morphogenesis through TGFbeta signaling |
Molecular mechanisms underlying substrate recognition and cleavage by Escherichia coli RseP , which belongs to S2P family of intramembrane-cleaving proteases , remain unclear . We examined the function of a conserved region looped into the membrane domain of RseP to form a β-hairpin-like structure near its active site ... | Cells have communication systems that enable them to respond to potentially dangerous changes in their external environment . For example , bacteria have an enzyme called RseP that helps to activate responses to external stresses . This enzyme sits in the membrane that surrounds the cell and cuts a protein called RseA ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"cell",
"biology"
] | 2015 | Roles of the membrane-reentrant β-hairpin-like loop of RseP protease in selective substrate cleavage |
Vocal signals such as calls play a crucial role for survival and successful reproduction , especially in group-living animals . However , call interactions and call dynamics within groups remain largely unexplored because their relation to relevant contexts or life-history stages could not be studied with individual-le... | As the name implies , songbirds produce song , but they may also emit large numbers of shorter calls . Because calls are often given in social situations , they are difficult to record and to assign to the correct individual . Therefore , it is still unclear what information is communicated by these calls and how impor... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"ecology",
"neuroscience"
] | 2015 | Patterns of call communication between group-housed zebra finches change during the breeding cycle |
The normal wound healing process is characterised by proteolytic events , whereas infection results in dysfunctional activations by endogenous and bacterial proteases . Peptides , downstream reporters of these proteolytic actions , could therefore serve as a promising tool for diagnosis of wounds . Using mass-spectrome... | Infected wounds and burns represent a serious risk to patients: they can delay healing and , if left untreated , can lead to generalised infection or sepsis , organ failure and death . Wounds and burns get infected when harmful micro-organisms , such as bacteria , enter the wound . Predicting the risk of infections , a... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"immunology",
"and",
"inflammation"
] | 2021 | Method development and characterisation of the low-molecular-weight peptidome of human wound fluids |
The anatomy of many neural circuits is being characterized with increasing resolution , but their molecular properties remain mostly unknown . Here , we characterize gene expression patterns in distinct neural cell types of the Drosophila visual system using genetic lines to access individual cell types , the TAPIN-seq... | In the brain , large numbers of different types of neurons connect with each other to form complex networks . In recent years , researchers have made great progress in mapping all the connections between these cells , creating ‘wiring diagrams’ known as connectomes . However , charting the connections between neurons d... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience",
"tools",
"and",
"resources",
"genetics",
"and",
"genomics"
] | 2020 | A genetic, genomic, and computational resource for exploring neural circuit function |
Nucleocytoplasmic transport is mediated by nuclear pore complexes ( NPCs ) embedded in the nuclear envelope . About 30 different proteins ( nucleoporins , nups ) arrange around a central eightfold rotational axis to build the modular NPC . Nup188 and Nup192 are related and evolutionary conserved , large nucleoporins th... | The nucleus of a cell is surrounded by a two-layered membrane that controls the flow of molecules from the cytoplasm into the nucleus and vice versa . The molecular traffic between the cytoplasm and nucleus is essentially controlled by nuclear pore complexes—large , multi-protein structures that are embedded in the mem... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology",
"structural",
"biology",
"and",
"molecular",
"biophysics"
] | 2013 | Scaffold nucleoporins Nup188 and Nup192 share structural and functional properties with nuclear transport receptors |
In bacteria various tactic responses are mediated by the same cellular pathway , but sensing of physical stimuli remains poorly understood . Here , we combine an in-vivo analysis of the pathway activity with a microfluidic taxis assay and mathematical modeling to investigate the thermotactic response of Escherichia col... | Many bacteria can move towards or away from chemicals , heat and other stimuli in their environment . The ability of bacteria to move in response to nutrients and other chemicals , known as chemotaxis , is the best understood of these phenomena . Bacteria generally swim in a fairly random way and frequently change dire... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"physics",
"of",
"living",
"systems",
"microbiology",
"and",
"infectious",
"disease"
] | 2017 | Mechanism of bidirectional thermotaxis in Escherichia coli |
CTP Synthetase ( CtpS ) is a universally conserved and essential metabolic enzyme . While many enzymes form small oligomers , CtpS forms large-scale filamentous structures of unknown function in prokaryotes and eukaryotes . By simultaneously monitoring CtpS polymerization and enzymatic activity , we show that polymeriz... | Enzymes are proteins that perform reactions that can convert one or more chemicals ( the substrates ) into others ( the products ) . The rate at which an enzyme produces its product is often carefully regulated . Some molecules slow or stop an enzyme by binding to and blocking the site where its substrates normally bin... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"cell",
"biology"
] | 2014 | Large-scale filament formation inhibits the activity of CTP synthetase |
Highly adapted herbivores can phenocopy two-component systems by stabilizing , sequestering and reactivating plant toxins . However , whether these traits protect herbivores against their enemies is poorly understood . We demonstrate that the western corn rootworm Diabrotica virgifera virgifera , the most damaging maiz... | The western corn rootworm is the most damaging pest of maize plants . Out of sight , the larvae of this beetle feed on maize roots , and cause billions of dollars worth of losses each year . One of the reasons why this pest remains such a problem is it can adapt and resist many crop protection strategies . Biological c... | [
"Abstract",
"Introduction",
"Results",
"and",
"discussion",
"Materials",
"and",
"methods"
] | [
"ecology"
] | 2017 | Sequestration and activation of plant toxins protect the western corn rootworm from enemies at multiple trophic levels |
Wnts are evolutionarily conserved signaling proteins with essential roles in development and disease that have often been thought to spread between cells and signal at a distance . However , recent studies have challenged this model , and whether long-distance extracellular Wnt dispersal occurs and is biologically rele... | Cells exchange signaling proteins that help them to communicate with each other . These signals control which genes are active , and how cells grow and specialize to do different tasks . Signals can also help cells to position themselves inside a body to form new tissues and organs . For example , the so-called Wnt sig... | [
"Abstract",
"Introduction",
"Results",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology",
"cell",
"biology"
] | 2018 | Direct visualization of a native Wnt in vivo reveals that a long-range Wnt gradient forms by extracellular dispersal |
The Hippo-YAP pathway is a central regulator of cell contact inhibition , proliferation and death . There are conflicting reports regarding the role of Angiomotin ( Amot ) in regulating this pathway . While some studies suggest a YAP-inhibitory function other studies indicate Amot is required for YAP activity . Here , ... | Cells in animals and other multi-cellular organisms need to know when and where they should grow and divide . Individual cells communicate with their surrounding environment and each other via signaling pathways such as the Hippo-YAP pathway , which stimulates cells to grow and therefore influences the size of organs .... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology",
"cancer",
"biology"
] | 2017 | Regulation of localization and function of the transcriptional co-activator YAP by angiomotin |
Proteases play crucial physiological functions in all organisms by controlling the lifetime of proteins . Here , we identified an atypical protease of the subtilase family [SBT5 . 2 ( b ) ] that attenuates the transcriptional activation of plant defence independently of its protease activity . The SBT5 . 2 gene produce... | Like animals , plants have evolved numerous ways to protect themselves from disease . When a plant detects an invading microbe , it massively changes which genes it expresses to establish a defensive response . This is possible thanks to the action of a type of protein , named transcription factors , which are able to ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"plant",
"biology"
] | 2016 | A non canonical subtilase attenuates the transcriptional activation of defence responses in Arabidopsis thaliana |
Membrane phospholipids can function as potent regulators of ion channel function . This study uncovers and investigates the effect of phosphatidic acid on Kv channel gating . Using the method of reconstitution into planar lipid bilayers , in which protein and lipid components are defined and controlled , we characteriz... | The electrical signals that carry information through the nervous system rely on positively charged potassium ions moving in and out of neurons . These ions move through proteins called voltage-gated potassium channels that are embedded in the plasma membrane that surrounds the neurons . The potassium channels contain ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"structural",
"biology",
"and",
"molecular",
"biophysics"
] | 2014 | Phosphatidic acid modulation of Kv channel voltage sensor function |
Living with relatives can be highly beneficial , enhancing reproduction and survival . High relatedness can , however , increase susceptibility to pathogens . Here , we examine whether the benefits of living with relatives offset the harm caused by pathogens , and if this depends on whether species typically live with ... | Living in a group with relatives has many advantages , such as helping with child rearing and gathering food . This has led many species to evolve a range of group behaviours; for example , in honey bee populations , worker bees sacrifice themselves to save the colony from incoming enemies . But there are also downside... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"ecology",
"evolutionary",
"biology"
] | 2021 | Living with relatives offsets the harm caused by pathogens in natural populations |
Soluble guanylate cyclase ( sGC ) is the primary receptor for nitric oxide ( NO ) in mammalian nitric oxide signaling . We determined structures of full-length Manduca sexta sGC in both inactive and active states using cryo-electron microscopy . NO and the sGC-specific stimulator YC-1 induce a 71° rotation of the heme-... | In humans and other animals , as the heart pumps blood around the body , the blood exerts pressure on the walls of the blood vessels , much like water flowing through a hose . Our blood pressure naturally varies over the day , generally increasing when we are active and decreasing when we rest . However , if blood pres... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology"
] | 2019 | Allosteric activation of the nitric oxide receptor soluble guanylate cyclase mapped by cryo-electron microscopy |
Chronic ethanol consumption is a leading cause of mortality worldwide , with higher risks to develop pulmonary infections , including Aspergillus infections . Mechanisms underlying increased susceptibility to infections are poorly understood . Chronic ethanol consumption induced increased mortality rates , higher Asper... | Alcoholism is a chronic disease that has many damaging effects on the body . Over long periods , excessive alcohol intake weakens the immune system , putting consumers at increased risk of getting lung infections such as pneumonia . Some forms of pneumonia can be caused by the fungus Aspergillus fumigatus . This microb... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"microbiology",
"and",
"infectious",
"disease",
"immunology",
"and",
"inflammation"
] | 2020 | Chronic ethanol consumption compromises neutrophil function in acute pulmonary Aspergillus fumigatus infection |
VEGFR-2 is the primary regulator of angiogenesis , the development of new blood vessels from pre-existing ones . VEGFR-2 has been hypothesized to be monomeric in the absence of bound ligand , and to undergo dimerization and activation only upon ligand binding . Using quantitative FRET and biochemical analysis , we show... | New blood vessels form by growing out from existing vessels . A signaling molecule called VEGF is crucial for this process and binds to a receptor protein known as VEGFR-2 . This binding activates signaling events within the cells that line the blood vessels to promote the growth of new vessels . VEGFR-2 belongs to a f... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"structural",
"biology",
"and",
"molecular",
"biophysics"
] | 2016 | VEGFR-2 conformational switch in response to ligand binding |
Metformin , a widely used first-line drug for treatment of type 2 diabetes ( T2D ) , has been shown to extend lifespan and delay the onset of age-related diseases . However , its primary locus of action remains unclear . Using a pure in vitro reconstitution system , we demonstrate that metformin acts through the v-ATPa... | As humans are living for longer , age-related diseases – including cancer , diabetes , cardiovascular diseases and cognitive disorders – are becoming more common . Many research groups are therefore trying to find drugs that might prevent these diseases or make them less harmful . A drug called metformin has been shown... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology"
] | 2017 | Metformin extends C. elegans lifespan through lysosomal pathway |
Cephalopod mollusks evolved numerous anatomical novelties , including arms and tentacles , but little is known about the developmental mechanisms underlying cephalopod limb evolution . Here we show that all three axes of cuttlefish limbs are patterned by the same signaling networks that act in vertebrates and arthropod... | Legs , wings , flippers and tentacles are just some examples of the diverse variety of animal limbs . Despite striking differences in form and function , all limbs develop in embryos using similar fundamental processes , like producing an outgrowth from the body and placing structures such as fingers , feathers , or su... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology",
"evolutionary",
"biology"
] | 2019 | Evolution of limb development in cephalopod mollusks |
Benign melanocytic nevi frequently emerge when an acquired BRAFV600E mutation triggers unchecked proliferation and subsequent arrest in melanocytes . Recent observations have challenged the role of oncogene-induced senescence in melanocytic nevus formation , necessitating investigations into alternative mechanisms for ... | Lots of people have small dark patches on their skin known as moles . Most moles form when individual cells known as melanocytes in the skin acquire a specific genetic mutation in a gene called BRAF . This mutation causes the cells to divide rapidly to form the mole . After a while , most moles stop growing and remain ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"genetics",
"and",
"genomics",
"cancer",
"biology"
] | 2021 | BRAFV600E induces reversible mitotic arrest in human melanocytes via microRNA-mediated suppression of AURKB |
Hosts and viruses are constantly evolving in response to each other: as a host attempts to suppress a virus , the virus attempts to evade and suppress the host’s immune system . Here , we describe the recurrent evolution of a virulent strain of a DNA virus , which infects multiple Drosophila species . Specifically , we... | Animals constantly evolve to protect themselves against viruses , and in turn , viruses evolve to escape their host’s new defenses . As a result , genes involved in this arms’ race are some of the fastest evolving in nature . A better understanding of how host-virus evolution works could help in the search for treatmen... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"evolutionary",
"biology",
"genetics",
"and",
"genomics"
] | 2020 | Recurrent evolution of high virulence in isolated populations of a DNA virus |
Speaking is a sensorimotor behavior whose neural basis is difficult to study with single neuron resolution due to the scarcity of human intracortical measurements . We used electrode arrays to record from the motor cortex ‘hand knob’ in two people with tetraplegia , an area not previously implicated in speech . Neurons... | Speaking involves some of the most precise and coordinated movements humans make . Learning how the brain produces speech could lead to better treatments for speech disorders . But it can be challenging to study . Human speech is unique , limiting what can be learned from animal studies . There also are few opportuniti... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2019 | Neural ensemble dynamics in dorsal motor cortex during speech in people with paralysis |
Homologous recombination ( HR ) is essential for maintaining genome stability . Although Rad51 is the key protein that drives HR , multiple auxiliary factors interact with Rad51 to potentiate its activity . Here , we present an interdisciplinary characterization of the interactions between Rad51 and these factors . Thr... | The DNA molecule contains the chemical instructions necessary for life . Its physical integrity is therefore vital , yet it is also under constant threat from external and internal factors . As a result , organisms have evolved an arsenal of mechanisms to repair damaged DNA . For instance , when the two complementary s... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"chromosomes",
"and",
"gene",
"expression",
"biochemistry",
"and",
"chemical",
"biology"
] | 2021 | A novel motif of Rad51 serves as an interaction hub for recombination auxiliary factors |
Phosphatidylinositol-4 , 5-bisphosphate [PI ( 4 , 5 ) P2] is essential for exocytosis . Classical ways of manipulating PI ( 4 , 5 ) P2 levels are slower than its metabolism , making it difficult to distinguish effects of PI ( 4 , 5 ) P2 from those of its metabolites . We developed a membrane-permeant , photoactivatable... | Cells in our body communicate by releasing compounds called transmitters that carry signals from one cell to the next . Packages called vesicles store transmitters within the signaling cell . When the cell needs to send a signal , the vesicles fuse with the cell's membrane and release their cargo . For many signaling p... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology",
"neuroscience"
] | 2017 | Phosphatidylinositol 4,5-bisphosphate optical uncaging potentiates exocytosis |
Eukaryotic cells possess a variety of signaling pathways that prevent accumulation of unfolded and misfolded proteins . Chief among these is the heat shock response ( HSR ) , which is assumed to respond to unfolded proteins in the cytosol and nucleus alike . In this study , we probe this axiom further using engineered ... | The majority of cellular proteins must be folded into a precise shape to work correctly . But when cells experience stressful conditions such as high temperatures and harmful chemicals , proteins start misfolding or even completely unfold . Misfolded proteins can be highly toxic . As a result , cells use several differ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"cell",
"biology"
] | 2015 | Distinct transcriptional responses elicited by unfolded nuclear or cytoplasmic protein in mammalian cells |
An outstanding question is how receptor tyrosine kinases ( RTKs ) determine different cell-fate decisions despite sharing the same signalling cascades . Here , we uncovered an unexpected mechanism of RTK trafficking in this process . By quantitative high-resolution FRET microscopy , we found that phosphorylated epiderm... | Molecules called growth factors can stimulate cells to grow , divide , or differentiate into more specialised cell types . Cells detect these molecules via proteins called receptor tyrosine kinases that span their surface membrane . The growth factor binds to the portion of the receptor outside the cell , which makes t... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology"
] | 2015 | Regulation of EGFR signal transduction by analogue-to-digital conversion in endosomes |
Animal cells within a tissue typically display a striking regularity in their size . To date , the molecular mechanisms that control this uniformity are still unknown . We have previously shown that size uniformity in animal cells is promoted , in part , by size-dependent regulation of G1 length . To identify the molec... | Animal cells come in many different sizes . In humans , for example , egg cells are thousands of times larger than sperm cells . Yet cells of any given type are often strikingly similar in size . The cells that line the surface of organs including the skin and kidneys are especially uniform; in fact a loss of size unif... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology",
"computational",
"and",
"systems",
"biology"
] | 2018 | Size uniformity of animal cells is actively maintained by a p38 MAPK-dependent regulation of G1-length |
Overexpression of anti-apoptotic proteins MCL1 and Bcl-xL are frequently observed in many cancers . Inhibitors targeting MCL1 are in clinical development , however numerous cancer models are intrinsically resistant to this approach . To discover mechanisms underlying resistance to MCL1 inhibition , we performed multipl... | Organisms keep their tissues healthy by instructing damaged or unwanted cells to kill themselves via a controlled process known as apoptosis . Cancer cells , however , are able to evade death by increasing the level of proteins that block apoptosis , such as MCL1 . Researchers have recently developed new drugs that can... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology",
"cancer",
"biology"
] | 2019 | The CUL5 ubiquitin ligase complex mediates resistance to CDK9 and MCL1 inhibitors in lung cancer cells |
Extracellularpolysaccharides of bacteria contribute to biofilm formation , stress tolerance , and infectivity . Cyanobacteria , the oxygenic photoautotrophic bacteria , uniquely produce sulfated extracellular polysaccharides among bacteria to support phototrophic biofilms . In addition , sulfated polysaccharides of cya... | Bacteria are single-cell microorganisms that can form communities called biofilms , which stick to surfaces such as rocks , plants or animals . Biofilms confer protection to bacteria and allow them to colonize new environments . The physical scaffold of biofilms is a viscous matrix made of several molecules , the main ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"plant",
"biology",
"microbiology",
"and",
"infectious",
"disease"
] | 2021 | Biosynthesis of a sulfated exopolysaccharide, synechan, and bloom formation in the model cyanobacterium Synechocystis sp. strain PCC 6803 |
Mycobacterium tuberculosis possesses a large number of genes of unknown or predicted function , undermining fundamental understanding of pathogenicity and drug susceptibility . To address this challenge , we developed a high-throughput functional genomics approach combining inducible CRISPR-interference and image-based... | Caused by the microorganism Mycobacterium tuberculosis , tuberculosis kills more people around the world than any other infectious disease . M . tuberculosis is also becoming increasingly resistant to treatments , which are particularly difficult for patients to complete . The M . tuberculosis genome carries about four... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"microbiology",
"and",
"infectious",
"disease",
"genetics",
"and",
"genomics"
] | 2020 | Arrayed CRISPRi and quantitative imaging describe the morphotypic landscape of essential mycobacterial genes |
B lymphocytes use B cell receptors ( BCRs ) to sense the physical features of the antigens . However , the sensitivity and threshold for the activation of BCRs resulting from the stimulation by mechanical forces are unknown . Here , we addressed this question using a double-stranded DNA-based tension gauge tether syste... | The immune system protects us from invading bacteria and other microbes . Immune cells called B cells help the immune system to identify the microbes so they can be destroyed . These cells make proteins called antibodies that bind to molecules from the microbes known as antigens . The B cells only start to produce anti... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"immunology",
"and",
"inflammation"
] | 2015 | The activation of IgM- or isotype-switched IgG- and IgE-BCR exhibits distinct mechanical force sensitivity and threshold |
Dopamine is released in the striatum during development and impacts the activity of Protein Kinase A ( PKA ) in striatal spiny projection neurons ( SPNs ) . We examined whether dopaminergic neuromodulation regulates activity-dependent glutamatergic synapse formation in the developing striatum . Systemic in vivo treatme... | The brain is composed of intricate circuits of connected neurons that communicate via a combination of electrical and chemical signals . Some signals ( referred to as excitatory signals ) increase the probability that the neuron receiving the chemical message will produce an electrical impulse . On the other hand , inh... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2015 | Neuromodulation of excitatory synaptogenesis in striatal development |
NK cell education is the process through which chronic engagement of inhibitory NK cell receptors by self MHC-I molecules preserves cellular responsiveness . The molecular mechanisms responsible for NK cell education remain unclear . Here , we show that mouse NK cell education is associated with a higher basal activity... | The cells of the immune system patrol the body to detect and destroy harmful microbes and diseased cells . Natural killer cells are immune cells with a natural capacity to kill infected or cancerous cells , as their name suggests . Importantly , they do so while sparing the surrounding healthy cells . As natural killer... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"immunology",
"and",
"inflammation"
] | 2017 | High mTOR activity is a hallmark of reactive natural killer cells and amplifies early signaling through activating receptors |
The ontogenetic trajectory of a marginal jawbone of Lophosteus superbus ( Late Silurian , 422 Million years old ) , the phylogenetically most basal stem osteichthyan , visualized by synchrotron microtomography , reveals a developmental relationship between teeth and dermal odontodes that is not evident from the adult m... | Human teeth are an example of odontodes: hard structures made of a material called dentine that are sometimes coated in enamel . Teeth are the only odontodes humans have , but other vertebrates ( animals with backbones ) have tooth-like scales on their skin . These structures are called dermal odontodes , and sharks an... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"evolutionary",
"biology"
] | 2020 | The developmental relationship between teeth and dermal odontodes in the most primitive bony fish Lophosteus |
Influenza virus expresses transcripts early in infection and transitions towards genome replication at later time points . This process requires de novo assembly of the viral replication machinery , large ribonucleoprotein complexes ( RNPs ) composed of the viral polymerase , genomic RNA and oligomeric nucleoprotein ( ... | To be able to multiply , the influenza virus needs to enter the cells of its host and trick them into copying the virus’ genetic information and assembling new virus particles . The genetic information of the virus is stored in molecules of ribonucleic acid ( RNA ) and encodes several viral proteins that are involved i... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"microbiology",
"and",
"infectious",
"disease"
] | 2017 | Influenza virus recruits host protein kinase C to control assembly and activity of its replication machinery |
Transmissible cancers , in which cancer cells themselves act as an infectious agent , have been identified in Tasmanian devils , dogs , and four bivalves . We investigated a disseminated neoplasia affecting geographically distant populations of two species of mussels ( Mytilus chilensis in South America and M . edulis ... | Cancer cells can grow and spread in one individual , but they normally do not spread to others . There are a few exceptions to this rule . For example , there are cancers in Tasmanian devils , dogs and bivalve shellfish that can spread to other members of the same species . In these creatures , cancer from one individu... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"microbiology",
"and",
"infectious",
"disease",
"cancer",
"biology"
] | 2019 | A single clonal lineage of transmissible cancer identified in two marine mussel species in South America and Europe |
Complex cognitive functions such as working memory and decision-making require information maintenance over seconds to years , from transient sensory stimuli to long-term contextual cues . While theoretical accounts predict the emergence of a corresponding hierarchy of neuronal timescales , direct electrophysiological ... | The human brain can both quickly react to a fleeting sight , like a changing traffic light , and slowly integrate complex information to form a long-term plan . To mirror these requirements , how long a neuron can be activated for – its ‘timescale’ – varies greatly between cells . A range of timescales has been identif... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"computational",
"and",
"systems",
"biology",
"neuroscience"
] | 2020 | Neuronal timescales are functionally dynamic and shaped by cortical microarchitecture |
Long-term memory ( LTM ) is believed to be stored in the brain as changes in synaptic connections . Here , we show that LTM storage and synaptic change can be dissociated . Cocultures of Aplysia sensory and motor neurons were trained with spaced pulses of serotonin , which induces long-term facilitation . Serotonin ( 5... | Cells called neurons allow information to travel quickly around the body so that we can rapidly respond to any changes that we sense in our environment . This includes non-conscious reactions , such as the knee-jerk reflex in humans . Reflexes and other behaviors can be influenced by long-term memory , and it is though... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2014 | Reinstatement of long-term memory following erasure of its behavioral and synaptic expression in Aplysia |
In neurons , microtubules ( MTs ) span the length of both axons and dendrites , and the molecular motors use these intracellular ‘highways' to transport diverse cargo to the appropriate subcellular locations . Whereas axonal MTs are organized such that the plus-end is oriented out from the cell body , dendrites exhibit... | Neurons , or nerve cells , are excitable cells that transmit information using electrical and chemical signals . Nerve cells are generally composed of a cell body , multiple dendrites , and a single axon . The dendrites are responsible for receiving inputs and for transferring these signals to the cell body , whereas t... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2013 | Kinesin-1 regulates dendrite microtubule polarity in Caenorhabditis elegans |
P2X7 receptor activation induces the release of different cellular proteins , such as CD14 , a glycosylphosphatidylinositol ( GPI ) -anchored protein to the plasma membrane important for LPS signaling via TLR4 . Circulating CD14 has been found at elevated levels in sepsis , but the exact mechanism of CD14 release in se... | When the immune system detects an infection , it often launches an inflammatory response to fight off the disease . This defense mechanism is activated by a cascade of signaling molecules that can aggravate inflammation , causing it to damage the body’s own tissues and organs . This life-threatening reaction is referre... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"immunology",
"and",
"inflammation"
] | 2020 | CD14 release induced by P2X7 receptor restricts inflammation and increases survival during sepsis |
Which genomic innovations underpinned the origin of multicellular animals is still an open debate . Here , we investigate this question by reconstructing the genome architecture and gene family diversity of ancestral premetazoans , aiming to date the emergence of animal-like traits . Our comparative analysis involves g... | Hundreds of millions of years ago , some single-celled organisms gained the ability to work together and form multicellular organisms . This transition was a major step in evolution and took place at separate times in several parts of the tree of life , including in animals , plants , fungi and algae . Animals are some... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"chromosomes",
"and",
"gene",
"expression",
"genetics",
"and",
"genomics"
] | 2017 | Dynamics of genomic innovation in the unicellular ancestry of animals |
The construction of cilia and flagella depends on intraflagellar transport ( IFT ) , the bidirectional movement of two protein complexes ( IFT-A and IFT-B ) driven by specific kinesin and dynein motors . IFT-B and kinesin are associated to anterograde transport whereas IFT-A and dynein participate to retrograde transpo... | Long , thin structures called cilia and flagella are found on the surface of many cells , and perform a range of roles , including propelling the cells around or sensing changes in the surrounding environment . A process called intraflagellar transport ( IFT for short ) is responsible for flagellum construction in euka... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology"
] | 2014 | The GTPase IFT27 is involved in both anterograde and retrograde intraflagellar transport |
Effective mucosal adjuvants enhance the magnitude and quality of the vaccine response . Cyclic di-GMP ( CDG ) is a promising mucosal vaccine adjuvant . However , its in vivo mechanisms are unclear . Here , we showed , in mice , that CDG elicits stronger Ab and TH responses than the mammalian 2′3′-cyclic GMP-AMP ( cGAMP... | The presence of a bacterium , virus , or other pathogen in the body generally triggers a response by the body's immune system . As well as trying to destroy the infectious agent , the immune system will also generate ‘memory cells’ that are primed and ready to recognize and help eliminate the pathogen if it is ever re-... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology",
"immunology",
"and",
"inflammation"
] | 2015 | The mucosal adjuvant cyclic di-GMP enhances antigen uptake and selectively activates pinocytosis-efficient cells in vivo |
In a group of 831 participants from the general population in the Human Connectome Project , smokers exhibited low overall functional connectivity , and more specifically of the lateral orbitofrontal cortex which is associated with non-reward mechanisms , the adjacent inferior frontal gyrus , and the precuneus . Partic... | To understand why people become addicted to alcohol or smoking , it is important to look at how the brains of people who use these substances may be different than those who abstain . Many studies show that substance use activates the reward systems in the brain via a chemical called dopamine . Changes or differences i... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2019 | Decreased brain connectivity in smoking contrasts with increased connectivity in drinking |
The neural correlates of consciousness are typically sought by comparing the overall brain responses to perceived and unperceived stimuli . However , this comparison may be contaminated by non-specific attention , alerting , performance , and reporting confounds . Here , we pursue a novel approach , tracking the neuron... | Our senses constantly receive information from the world around us , but we consciously perceive only a small portion of it . Nonetheless , even stimuli that are not consciously perceived are registered in our brain and influence our behavior . This is known as unconscious perception . Researchers disagree about how br... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2015 | Distinct cortical codes and temporal dynamics for conscious and unconscious percepts |
There is considerable potential for X-ray free electron lasers ( XFELs ) to enable determination of macromolecular crystal structures that are difficult to solve using current synchrotron sources . Prior XFEL studies often involved the collection of thousands to millions of diffraction images , in part due to limitatio... | Large biological molecules ( or macromolecules ) have intricate three-dimensional structures . X-ray crystallography is a technique that is commonly used to determine these structures and involves directing a beam of X-rays at a crystal that was grown from the macromolecule of interest . The macromolecules in the cryst... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"structural",
"biology",
"and",
"molecular",
"biophysics"
] | 2015 | Enabling X-ray free electron laser crystallography for challenging biological systems from a limited number of crystals |
Ciliary and rhabdomeric opsins are employed by different kinds of photoreceptor cells , such as ciliary vertebrate rods and cones or protostome microvillar eye photoreceptors , that have specialized structures and molecular physiologies . We report unprecedented cellular co-expression of rhabdomeric opsin and a visual ... | Animal eyes have photoreceptor cells that contain light-sensitive molecules called opsins . Although all animal photoreceptor cells of this kind share a common origin , the cells found in different organisms can differ considerably . The photoreceptor cells in flies , squids and other invertebrates store a type of opsi... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience",
"genetics",
"and",
"genomics"
] | 2017 | Co-expression of xenopsin and rhabdomeric opsin in photoreceptors bearing microvilli and cilia |
Auditory function is dependent on the formation of specific innervation patterns between mechanosensory hair cells ( HCs ) and afferent spiral ganglion neurons ( SGNs ) . In particular , type I SGNs must precisely connect with inner HCs ( IHCs ) while avoiding connections with nearby outer HCs ( OHCs ) . The factors th... | The process of hearing begins when sound waves enter the outer ear , causing the eardrum to vibrate . The three small bones of the middle ear pass these vibrations on to the cochlea , a fluid-filled structure shaped like a spiral . Tiny hair cells inside the cochlea move in response to the vibrations and convert them i... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology",
"neuroscience"
] | 2015 | Neuropilin-2/Semaphorin-3F-mediated repulsion promotes inner hair cell innervation by spiral ganglion neurons |
A highly evolved RNA polymerase ribozyme was found to also be capable of functioning as a reverse transcriptase , an activity that has never been demonstrated before for RNA . This activity is thought to have been crucial for the transition from RNA to DNA genomes during the early history of life on Earth , when it sim... | All known living things share the same genetic machinery , traditionally called the central dogma . According to this dogma , genes in DNA produce messages made from a similar molecule called RNA . These RNA messengers provide the instructions to make proteins , which then form structures and act as molecular machines ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"short",
"report",
"biochemistry",
"and",
"chemical",
"biology"
] | 2017 | A reverse transcriptase ribozyme |
Tumor initiation , progression and resistance to chemotherapy rely on cancer cells bypassing programmed cell death by apoptosis . We report that unlike other pro-apoptotic proteins , Bim contains two distinct binding sites for the anti-apoptotic proteins Bcl-XL and Bcl-2 . These include the BH3 sequence shared with oth... | The body can get rid of cells that are unnecessary , infected or damaged by instructing them to go through a process known as apoptosis , which results in the cell killing itself . These orders are given in the form of pro-death molecules , such as the BH3 proteins , which kick start apoptosis . In order to survive and... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology",
"cancer",
"biology"
] | 2019 | Bim escapes displacement by BH3-mimetic anti-cancer drugs by double-bolt locking both Bcl-XL and Bcl-2 |
Calcium is an essential cellular messenger that regulates numerous functions in living organisms . Here , we describe development and characterization of ‘Salsa6f’ , a fusion of GCaMP6f and tdTomato optimized for cell tracking while monitoring cytosolic Ca2+ , and a transgenic Ca2+ reporter mouse with Salsa6f targeted ... | To help protect the body from disease , small immune cells called T lymphocytes move rapidly , searching for signs of infection . These signs are antigens – processed pieces of proteins from invading bacteria and viruses – which are displayed on the surface of so-called antigen-presenting cells . To visit as many diffe... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology",
"tools",
"and",
"resources",
"immunology",
"and",
"inflammation"
] | 2017 | T-cell calcium dynamics visualized in a ratiometric tdTomato-GCaMP6f transgenic reporter mouse |
Natural populations persist in complex environments , where biotic stressors , such as pathogen and insect communities , fluctuate temporally and spatially . These shifting biotic pressures generate heterogeneous selective forces that can maintain standing natural variation within a species . To directly test if genes ... | ‘Genetic variation’ describes the naturally occurring differences in DNA sequences that are found among individuals of the same species . These genetic differences arise from random mutations and may be passed on to their offspring . Some of these mutations may improve the ability of an individual to survive and reprod... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"ecology",
"plant",
"biology"
] | 2015 | Natural genetic variation in Arabidopsis thaliana defense metabolism genes modulates field fitness |
The human visual system can be divided into over two-dozen distinct areas , each of which contains a topographic map of the visual field . A fundamental question in vision neuroscience is how the visual system integrates information from the environment across different areas . Using neuroimaging , we investigated the ... | Imagine you are looking out over a scenic landscape . The image you perceive is actually made up of many different visual components—for example color and movement—that are processed across many different areas in a region of the brain called the visual cortex . An important question for neuroscience is how the visual ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2015 | Widespread correlation patterns of fMRI signal across visual cortex reflect eccentricity organization |
Wnt plays important role during development and in various diseases . Because Wnts are lipidated and highly hydrophobic , they can only be purified in the presence of detergents , limiting their use in various in vitro and in vivo assays . We purified N-terminally tagged recombinant Wnt3a secreted from cells and accide... | The Wnt signaling pathway helps animal cells to communicate with each other to coordinate the formation of tissues and organs . The pathway relies on a protein called Wnt that is released from cells and binds to a receptor protein called Frizzled on the surface of other cells to trigger changes in gene activation . Def... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology",
"biochemistry",
"and",
"chemical",
"biology",
"tools",
"and",
"resources"
] | 2016 | Active and water-soluble form of lipidated Wnt protein is maintained by a serum glycoprotein afamin/α-albumin |
The 26S proteasome is responsible for the selective , ATP-dependent degradation of polyubiquitinated cellular proteins . Removal of ubiquitin chains from targeted substrates at the proteasome is a prerequisite for substrate processing and is accomplished by Rpn11 , a deubiquitinase within the ‘lid’ sub-complex . Prior ... | The proteins contained within cells are constantly under scrutiny by a sophisticated “quality control” system that tags damaged or malfunctioning proteins with chains made up of a protein called ubiquitin . These ubiquitin chains serve as markers that target these toxic proteins for destruction by a molecular complex c... | [
"Abstract",
"Introduction",
"Results",
"and",
"discussion",
"Materials",
"and",
"methods"
] | [
"structural",
"biology",
"and",
"molecular",
"biophysics"
] | 2016 | Atomic structure of the 26S proteasome lid reveals the mechanism of deubiquitinase inhibition |
Universally conserved factors from NusG family bind at the upstream fork junction of transcription elongation complexes and modulate RNA synthesis in response to translation , processing , and folding of the nascent RNA . Escherichia coli NusG enhances transcription elongation in vitro by a poorly understood mechanism ... | Cells decode genes in two steps . First , they synthesize a molecule similar to DNA , called RNA , which is a complementary copy of the gene . This process , known as transcription , creates an intermediate RNA molecule that is turned into protein in the second step . RNA polymerase is an enzyme that carries out transc... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"structural",
"biology",
"and",
"molecular",
"biophysics"
] | 2016 | NusG inhibits RNA polymerase backtracking by stabilizing the minimal transcription bubble |
COVID-19 CG ( covidcg . org ) is an open resource for tracking SARS-CoV-2 single-nucleotide variations ( SNVs ) , lineages , and clades using the virus genomes on the GISAID database while filtering by location , date , gene , and mutation of interest . COVID-19 CG provides significant time , labor , and cost-saving ut... | The discovery of faster spreading variants of the virus that causes coronavirus disease 2019 ( COVID-19 ) has raised alarm . These new variants are the result of changes ( called mutations ) in the virus’ genetic code . Random mutations can occur each time a virus multiplies . Although most mutations do not introduce a... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"evolutionary",
"biology",
"epidemiology",
"and",
"global",
"health"
] | 2021 | COVID-19 CG enables SARS-CoV-2 mutation and lineage tracking by locations and dates of interest |
It has been difficult to link synaptic modification to overt behavioral changes . Rodent models of DYT1 dystonia , a motor disorder caused by a single gene mutation , demonstrate increased long-term potentiation and decreased long-term depression in corticostriatal synapses . Computationally , such asymmetric learning ... | We learn to choose better options and avoid worse ones through trial and error , but exactly how this happens is still unclear . One idea is that we learn 'values' for options: whenever we choose an option and get more reward than originally expected ( for example , if an unappetizing-looking food turns out to be very ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"short",
"report",
"neuroscience"
] | 2016 | DYT1 dystonia increases risk taking in humans |
Lagging chromosome is a hallmark of aneuploidy arising from errors in the kinetochore–spindle attachment in animal cells . However , kinetochore components and cellular phenotypes associated with kinetochore dysfunction are much less explored in plants . Here , we carried out a comprehensive characterization of conserv... | Plants and animals , like all living things , are made of self-contained units called cells that are able to grow and multiply as required . Each cell contains structures called chromosomes that provide the genetic instructions needed to perform every task in the cell . When a cell is preparing to divide to make two id... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"plant",
"biology",
"cell",
"biology"
] | 2019 | Kinetochore protein depletion underlies cytokinesis failure and somatic polyploidization in the moss Physcomitrella patens |
Whereas it is well established that chronic stress induces female reproductive dysfunction , whether stress negatively impacts fertility and fecundity when applied prior to mating and pregnancy has not been explored . In this study , we show that stress that concludes 4 days prior to mating results in persistent and ma... | Infertility has become alarmingly common in otherwise healthy women and around 15% of healthy couples younger than 30 years old are unable to conceive within the first year of trying . High-stress levels are known to decrease short-term fertility in humans and other animals , which may serve to prevent pregnancy during... | [
"Abstract",
"Main",
"Text",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"short",
"report",
"neuroscience"
] | 2015 | Knockdown of hypothalamic RFRP3 prevents chronic stress-induced infertility and embryo resorption |
The pectoral fins of ancestral fishes had multiple proximal elements connected to their pectoral girdles . During the fin-to-limb transition , anterior proximal elements were lost and only the most posterior one remained as the humerus . Thus , we hypothesised that an evolutionary alteration occurred in the anterior–po... | Humans , mice , and other animals with four limbs belong to a group of land-dwelling animals known as the tetrapods . This group of animals evolved from ancient fish and one crucial adaptation to life on land involved the modification of fins to form limbs . The front pair of limbs ( the ‘arms’ ) evolved from the ‘pect... | [
"Abstract",
"Introduction",
"Results",
"and",
"discussion",
"Materials",
"and",
"methods"
] | [
"evolutionary",
"biology",
"developmental",
"biology",
"short",
"report"
] | 2015 | A shift in anterior–posterior positional information underlies the fin-to-limb evolution |
We establish a murine lung-on-chip infection model and use time-lapse imaging to reveal the dynamics of host-Mycobacterium tuberculosis interactions at an air-liquid interface with a spatiotemporal resolution unattainable in animal models and to probe the direct role of pulmonary surfactant in early infection . Surfact... | Tuberculosis is a contagious respiratory disease caused by the bacterium Mycobacterium tuberculosis . Droplets in the air carry these bacteria deep into the lungs , where they cling onto and infect lung cells . Only small droplets , holding one or two bacteria , can reach the right cells , which means that just a coupl... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"physics",
"of",
"living",
"systems",
"tools",
"and",
"resources",
"microbiology",
"and",
"infectious",
"disease"
] | 2020 | A lung-on-chip model of early Mycobacterium tuberculosis infection reveals an essential role for alveolar epithelial cells in controlling bacterial growth |
RNA granules have been likened to liquid droplets whose dynamics depend on the controlled dissolution and condensation of internal components . The molecules and reactions that drive these dynamics in vivo are not well understood . In this study , we present evidence that a group of intrinsically disordered , serine-ri... | For a gene to be expressed as a protein , its DNA is first used as a template to make a molecule of RNA , which is then translated to make the protein . In most cells , RNA molecules concentrate into aggregates called RNA granules . These granules contain both RNA and proteins that bind to RNA and are used to transport... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology",
"cell",
"biology"
] | 2014 | Regulation of RNA granule dynamics by phosphorylation of serine-rich, intrinsically disordered proteins in C. elegans |
Cells can enter into a dormant state when faced with unfavorable conditions . However , how cells enter into and recover from this state is still poorly understood . Here , we study dormancy in different eukaryotic organisms and find it to be associated with a significant decrease in the mobility of organelles and fore... | Most organisms live in unpredictable environments , which can often lead to nutrient shortages and other conditions that limit their ability to grow . To survive in these harsh conditions , many organisms adopt a dormant state in which their metabolism slows down to conserve vital energy . When the environmental condit... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology"
] | 2016 | A pH-driven transition of the cytoplasm from a fluid- to a solid-like state promotes entry into dormancy |
Traditional rodent models of Pavlovian fear conditioning assess the strength of learning by quantifying freezing responses . However , sole reliance on this measure includes the de facto assumption that any locomotor activity reflects an absence of fear . Consequently , alternative expressions of associative learning a... | Animals can respond to fear in a variety of ways , such as by standing still ( freezing ) , or rapidly escaping from an apparent threat . Freezing is the most common measure of fear that has been used in research studies . However , since the vast majority of these experiments have used male animals , it is not clear i... | [
"Abstract",
"Introduction",
"Results",
"and",
"Discussion",
"Materials",
"and",
"methods"
] | [
"short",
"report",
"neuroscience"
] | 2015 | Sexually divergent expression of active and passive conditioned fear responses in rats |
Clathrin-mediated endocytosis ( CME ) is the major internalisation route for many different receptor types in mammalian cells . CME is shut down during early mitosis , but the mechanism of this inhibition is unclear . In this study , we show that the mitotic shutdown is due to an unmet requirement for actin in CME . In... | The plasma membrane that surrounds a cell acts as a protective barrier that regulates what can enter or exit the cell . However , large molecules and other ‘cargo’ can get into a cell in a variety of ways . One of these routes—known as clathrin-mediated endocytosis—involves a receptor on the outside of the membrane gra... | [
"Abstract",
"Introduction",
"Results",
"and",
"discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology"
] | 2014 | An unmet actin requirement explains the mitotic inhibition of clathrin-mediated endocytosis |
The second-generation antiandrogen enzalutamide was recently approved for patients with castration-resistant prostate cancer . Despite its success , the duration of response is often limited . For previous antiandrogens , one mechanism of resistance is mutation of the androgen receptor ( AR ) . To prospectively identif... | Prostate cancer is the most commonly diagnosed cancer in men , and the second most lethal . All stages of prostate cancer depend upon male sex hormones , also known as androgens , to grow because these hormones bind and activate androgen receptors . A class of drugs termed ‘antiandrogens’ can effectively treat prostate... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cancer",
"biology"
] | 2013 | Overcoming mutation-based resistance to antiandrogens with rational drug design |
Several transcription factors ( TFs ) oscillate , periodically relocating between the cytoplasm and the nucleus . NF-κB , which plays key roles in inflammation and cancer , displays oscillations whose biological advantage remains unclear . Recent work indicated that NF-κB displays sustained oscillations that can be ent... | The process of producing useful biological molecules from genes – known as gene expression – is not always simple . Many genes are part of complex circuits , some of which show regular patterns of activity in response to an environmental cue . For example , the expression of some genes is tied to the 24-hour daily cycl... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"chromosomes",
"and",
"gene",
"expression",
"computational",
"and",
"systems",
"biology"
] | 2016 | NF-κB oscillations translate into functionally related patterns of gene expression |
GBPs are essential for immunity against intracellular pathogens , especially for Toxoplasma gondii control . Here , the molecular interactions of murine GBPs ( mGBP1/2/3/5/6 ) , homo- and hetero-multimerization properties of mGBP2 and its function in parasite killing were investigated by mutational , Multiparameter Flu... | A microscopic parasite called Toxoplasma gondii causes a serious disease known as toxoplasmosis in humans and other mammals . Once inside the body , the parasite can infect host cells , where it hides inside a cell structure called a vacuole . However , this triggers self-defense mechanisms in the infected cells that h... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"structural",
"biology",
"and",
"molecular",
"biophysics",
"microbiology",
"and",
"infectious",
"disease"
] | 2016 | Guanylate binding proteins directly attack Toxoplasma gondii via supramolecular complexes |
The number of de novo mutations ( DNMs ) found in an offspring's genome increases with both paternal and maternal age . But does the rate of mutation accumulation in human gametes differ across families ? Using sequencing data from 33 large , three-generation CEPH families , we observed significant variability in paren... | Humans receive half of their DNA from each of their parents . However , this inherited DNA is not identical to the corresponding half of the parents’ genetic material . Instead , both the egg and the sperm that combine to generate an embryo carry so-called ‘germline de novo’ mutations that are not present in the rest o... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"genetics",
"and",
"genomics"
] | 2019 | Large, three-generation human families reveal post-zygotic mosaicism and variability in germline mutation accumulation |
Coactivator complexes SAGA and NuA4 stimulate transcription by post-translationally modifying chromatin . Both complexes contain the Tra1 subunit , a highly conserved 3744-residue protein from the Phosphoinositide 3-Kinase-related kinase ( PIKK ) family and a direct target for multiple sequence-specific activators . We... | Inside our cells , histone proteins package and condense DNA so that it can fit into the cell nucleus . However , this also switches off the genes , since the machines that read and interpret them can no longer access the underlying DNA . Turning genes on requires specific enzymes that chemically modify the histone pro... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"chromosomes",
"and",
"gene",
"expression",
"structural",
"biology",
"and",
"molecular",
"biophysics"
] | 2017 | Cryo-EM structure of the SAGA and NuA4 coactivator subunit Tra1 at 3.7 angstrom resolution |
Somatic mutations in the estrogen receptor alpha ( ERα ) gene ( ESR1 ) , especially Y537S and D538G , have been linked to acquired resistance to endocrine therapies . Cell-based studies demonstrated that these mutants confer ERα constitutive activity and antiestrogen resistance and suggest that ligand-binding domain dy... | Around one in every eight women will be diagnosed with breast cancer in their lifetime . Hormone-based therapies – also referred to antiestrogen drugs – target a protein called estrogen receptor alpha and are effective treatments for the majority of these cancers . Unfortunately , about half of patients will develop re... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"structural",
"biology",
"and",
"molecular",
"biophysics"
] | 2016 | Estrogen receptor alpha somatic mutations Y537S and D538G confer breast cancer endocrine resistance by stabilizing the activating function-2 binding conformation |
The genetic mechanisms regulating the brain and behaviour across the lifespan are poorly understood . We found that lifespan transcriptome trajectories describe a calendar of gene regulatory events in the brain of humans and mice . Transcriptome trajectories defined a sequence of gene expression changes in neuronal , g... | In our lifetime , we go through many changes – physically and also intellectually . At certain ages , we are particularly vulnerable to develop psychiatric disorders , and the majority of mental conditions start to manifest in teenagers and young adults . The symptoms for schizophrenia , for example , a mental health d... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience",
"genetics",
"and",
"genomics"
] | 2017 | A genomic lifespan program that reorganises the young adult brain is targeted in schizophrenia |
The production of high affinity , class switched antibodies produced by B cells hinges on the effective differentiation of T follicular helper ( Tfh ) cells . Here we define conditions specifically enhancing Tfh differentiation and providing protection in a model of influenza infection . Tfh responses were associated w... | The immune system protects the body from infections , cancer and other diseases . Invading microbes and cancerous cells exhibit proteins that are not normally found in the healthy cells of the body . Fragments of these molecules—known as antigens—may be detected by the immune system , which can then respond by producin... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"immunology",
"and",
"inflammation"
] | 2015 | Antigen presentation kinetics control T cell/dendritic cell interactions and follicular helper T cell generation in vivo |
The evolution of metazoans from their unicellular ancestors was one of the most important events in the history of life . However , the cellular and genetic changes that ultimately led to the evolution of multicellularity are not known . In this study , we describe an aggregative multicellular stage in the protist Caps... | When living things made from many cells evolved from single-celled ancestors , it was a breakthrough in the history of life—and one that has occurred more than once . In fact , multicellular life has evolved independently at least 25 times , in groups as diverse as animals , fungi , plants , slime molds and seaweeds . ... | [
"Abstract",
"Introduction",
"Results",
"and",
"discussion",
"Materials",
"and",
"methods"
] | [
"evolutionary",
"biology"
] | 2013 | Regulated aggregative multicellularity in a close unicellular relative of metazoa |
Kymographs are graphical representations of spatial position over time , which are often used in biology to visualise the motion of fluorescent particles , molecules , vesicles , or organelles moving along a predictable path . Although in kymographs tracks of individual particles are qualitatively easily distinguished ... | Many molecules and structures within cells have to move about to do their job . Studying these movements is important to understand many biological processes , including the development of the brain or the spread of viruses . Kymographs are images that represent the movement of particles in time and space . Unfortunate... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology",
"physics",
"of",
"living",
"systems",
"tools",
"and",
"resources"
] | 2019 | KymoButler, a deep learning software for automated kymograph analysis |
Mushroom bodies are the iconic learning and memory centers of insects . No previously described crustacean possesses a mushroom body as defined by strict morphological criteria although crustacean centers called hemiellipsoid bodies , which serve functions in sensory integration , have been viewed as evolutionarily con... | With more than four million species , arthropods are the largest and most diverse group of animals on the planet and include , for example , crustaceans , insects and spiders . They are defined by their segmented bodies , hard outer skeletons and jointed limbs . All arthropods share a common ancestor that lived more th... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2017 | An insect-like mushroom body in a crustacean brain |
RXRA regulates transcription as part of a heterodimer with 14 other nuclear receptors , including the peroxisome proliferator-activated receptors ( PPARs ) . Analysis from TCGA raised the possibility that hyperactive PPAR signaling , either due to PPAR gamma gene amplification or RXRA hot-spot mutation ( S427F/Y ) driv... | Bladder cancer is the sixth most common type of cancer in the United States . At the moment , treatment options for advanced bladder cancer are limited to chemotherapy and immunotherapy , both of which benefit only some patients . Many other types of cancer can be treated with drugs that are specific to genetic mutatio... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cancer",
"biology"
] | 2017 | Bladder-cancer-associated mutations in RXRA activate peroxisome proliferator-activated receptors to drive urothelial proliferation |
Synaptic plasticity is a cardinal cellular mechanism for learning and memory . The endocannabinoid ( eCB ) system has emerged as a pivotal pathway for synaptic plasticity because of its widely characterized ability to depress synaptic transmission on short- and long-term scales . Recent reports indicate that eCBs also ... | Learning and memory depend on processes that alter the connections – or synapses – between neurons in the brain . For example , molecules called endocannabinoids can alter synapses to decrease the influence that one neuron has on another neuron’s activity . This “synaptic depression” is an important mechanism through w... | [
"Abstract",
"Introduction",
"Results",
"Discussion"
] | [
"neuroscience"
] | 2016 | Endocannabinoid dynamics gate spike-timing dependent depression and potentiation |
Identification of residue-residue contacts from primary sequence can be used to guide protein structure prediction . Using Escherichia coli CcdB as the test case , we describe an experimental method termed saturation-suppressor mutagenesis to acquire residue contact information . In this methodology , for each of five ... | Common techniques to determine the three-dimensional structures of proteins can help researchers to understand these molecules’ activities , but are often time-consuming and do not work for all proteins . Proteins are made of chains of amino acids . When a protein chain folds , some of these amino acids interact with o... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"structural",
"biology",
"and",
"molecular",
"biophysics"
] | 2015 | Residue proximity information and protein model discrimination using saturation-suppressor mutagenesis |
Numerous studies have established important roles for microRNAs ( miRNAs ) in regulating gene expression . Here , we report that miRNAs also serve as a surveillance system to repress the expression of nonsense mRNAs that may produce harmful truncated proteins . Upon recognition of the premature termination codon by the... | To produce a protein from a gene , the sequence of the gene must be transcribed to produce a molecule of messenger RNA ( mRNA ) . The sequence of the mRNA is then read in groups of three letters at a time ( called codons ) , and each codon instructs for a particular amino acid to be added into the protein . Some codons... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"cell",
"biology"
] | 2014 | MicroRNA-mediated repression of nonsense mRNAs |
NMDA receptors , which regulate synaptic strength and are implicated in learning and memory , consist of several subtypes with distinct subunit compositions and functional properties . To enable spatiotemporally defined , rapid and reproducible manipulation of function of specific subtypes , we engineered a set of phot... | Within the nervous system , neurons are organized into extensive networks via connections called synapses . To signal across a synapse , one neuron releases chemical messengers that bind to “receptors” on the surface of the neighboring cell . The ease with which neurons can communicate can change depending on how often... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2016 | A family of photoswitchable NMDA receptors |
mRNA localization is critical for eukaryotic cells and affects numerous transcripts , yet how cells regulate distribution of many mRNAs to their subcellular destinations is still unknown . We combined transcriptomics and systematic imaging to determine the tissue-specific expression and subcellular distribution of 5862... | To make a protein , the DNA sequence that encodes it must first be ‘transcribed’ to build a molecule of messenger RNA ( called mRNA for short ) . Although many mRNA molecules are found throughout a cell , some are ‘localized’ to certain areas; and recent evidence suggests that this mRNA localization may be more common ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology",
"tools",
"and",
"resources",
"genetics",
"and",
"genomics"
] | 2015 | Systematic imaging reveals features and changing localization of mRNAs in Drosophila development |
Mechanistic modeling in neuroscience aims to explain observed phenomena in terms of underlying causes . However , determining which model parameters agree with complex and stochastic neural data presents a significant challenge . We address this challenge with a machine learning tool which uses deep neural density esti... | Computational neuroscientists use mathematical models built on observational data to investigate what’s happening in the brain . Models can simulate brain activity from the behavior of a single neuron right through to the patterns of collective activity in whole neural networks . Collecting the experimental data is the... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"computational",
"and",
"systems",
"biology",
"neuroscience"
] | 2020 | Training deep neural density estimators to identify mechanistic models of neural dynamics |
As part of an initiative to improve rigor and reproducibility in biomedical research , the U . S . National Institutes of Health now requires the consideration of sex as a biological variable in preclinical studies . This new policy has been interpreted by some as a call to compare males and females with each other . R... | Biomedical research has a long history of including only men or male laboratory animals in studies . To address this disparity , the United States National Institutes of Health ( NIH ) rolled out a policy in 2016 called Sex as a Biological Variable ( or SABV ) . The policy requires researchers funded by the NIH to incl... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"medicine",
"neuroscience"
] | 2021 | Reporting and misreporting of sex differences in the biological sciences |
Regulation of ubiquitin-proteasome system ( UPS ) , which controls the turnover of short-lived proteins in eukaryotic cells , is critical in maintaining cellular proteostasis . Here we show that USP14 , a major deubiquitinating enzyme that regulates the UPS , is a substrate of Akt , a serine/threonine-specific protein ... | Proteins are the workhorses of cells . These molecules provide structure , transmit messages and carry out many other essential tasks . When proteins have fulfilled their purpose , or become damaged , they must be removed through a garbage disposal-like molecular machine in cells called the proteasome . A breakdown in ... | [
"Abstract",
"Introduction",
"Results",
"Phosphorylation",
"of",
"USP14",
"regulates",
"global",
"protein",
"degradation",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"cell",
"biology"
] | 2015 | Phosphorylation and activation of ubiquitin-specific protease-14 by Akt regulates the ubiquitin-proteasome system |
Achiasma in humans causes gross mis-wiring of the retinal-fugal projection , resulting in overlapped cortical representations of left and right visual hemifields . We show that in areas V1-V3 this overlap is due to two co-located but non-interacting populations of neurons , each with a receptive field serving only one ... | When a part of the brain becomes active , more oxygen-rich blood flows to it to keep its neurons supplied with energy . This flow of blood can be measured using a technique called functional magnetic resonance imaging ( fMRI ) . Yet , it was not known exactly how the magnitude of the signal recorded from the oxygenated... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Conclusion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2015 | Using an achiasmic human visual system to quantify the relationship between the fMRI BOLD signal and neural response |
Endosomal membrane trafficking requires coordination between phosphoinositide lipids , Rab GTPases , and microtubule-based motors to dynamically determine endosome identity and promote long-range organelle transport . Here we report that ankyrin-B ( AnkB ) , through integrating all three systems , functions as a critic... | The membranes that surround animal and other eukaryotic cells are in a state of flux . Small fluid-filled sacs known as vesicles form from the membrane and move into the cell , while other vesicles are returning with cargos of chemicals . These processes allow cells to rapidly adjust the composition of their surfaces f... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"cell",
"biology"
] | 2016 | Ankyrin-B is a PI3P effector that promotes polarized α5β1-integrin recycling via recruiting RabGAP1L to early endosomes |
The mammalian imprinted Dlk1-Dio3 locus produces multiple long non-coding RNAs ( lncRNAs ) from the maternally inherited allele , including Meg3 ( i . e . , Gtl2 ) in the mammalian genome . Although this locus has well-characterized functions in stem cell and tumor contexts , its role during neural development is unkno... | When a gene is active , its DNA sequence is ‘transcribed’ to form a molecule of RNA . Many of these RNAs act as templates for making proteins . But for some genes , the protein molecules are not their final destinations . Their RNA molecules instead help to control gene activity , which can alter the behaviour or the i... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology",
"neuroscience"
] | 2018 | Dlk1-Dio3 locus-derived lncRNAs perpetuate postmitotic motor neuron cell fate and subtype identity |
Neural circuits for behavior transform sensory inputs into motor outputs in patterns with strategic value . Determining how neurons along a sensorimotor circuit contribute to this transformation is central to understanding behavior . To do this , a quantitative framework to describe behavioral dynamics is needed . In t... | Living organisms can sense their surroundings and respond in appropriate ways . For example , animals will often move towards the smell of food or away from potential threats , such as predators . However , it is not fully understood how an animal's nervous system is setup to allow sensory information to control how th... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2015 | Reverse-correlation analysis of navigation dynamics in Drosophila larva using optogenetics |
During M phase , Endosulfine ( Endos ) family proteins are phosphorylated by Greatwall kinase ( Gwl ) , and the resultant pEndos inhibits the phosphatase PP2A-B55 , which would otherwise prematurely reverse many CDK-driven phosphorylations . We show here that PP2A-B55 is the enzyme responsible for dephosphorylating pEn... | The most dramatic stage of the cell division cycle is M phase , when the cell splits into two genetically identical daughter cells . If this process goes wrong , the cell might die , so cells employ a complicated regulatory process to ensure that M phase begins and ends at the right time . As with many biological proce... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"cell",
"biology"
] | 2014 | Greatwall-phosphorylated Endosulfine is both an inhibitor and a substrate of PP2A-B55 heterotrimers |
By directed evolution in the laboratory , we previously generated populations of Escherichia coli that exhibit a complex new phenotype , extreme resistance to ionizing radiation ( IR ) . The molecular basis of this extremophile phenotype , involving strain isolates with a 3-4 order of magnitude increase in IR resistanc... | X-rays and other forms of ionizing radiation can damage DNA and proteins inside cells . The radiation interacts with aqueous solutions to produce reactive forms of oxygen , which then cause the damage . A range of mechanisms exist to moderate and/or repair this damage , with certain species being able to tolerate extra... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"chromosomes",
"and",
"gene",
"expression",
"evolutionary",
"biology"
] | 2014 | Evolution of extreme resistance to ionizing radiation via genetic adaptation of DNA repair |
Precise and efficient manipulation of genes is crucial for understanding the molecular mechanisms that govern human hematopoiesis and for developing novel therapies for diseases of the blood and immune system . Current methods do not enable precise engineering of complex genotypes that can be easily tracked in a mixed ... | Our DNA contains thousands of sections called genes that encode the information needed to make all the cells in the human body . To understand what the genes do and how they contribute to diseases , it is crucial for researchers to be able to switch individual genes on or off or make precise changes to the ‘letters’ in... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"stem",
"cells",
"and",
"regenerative",
"medicine",
"tools",
"and",
"resources",
"genetics",
"and",
"genomics"
] | 2017 | Multiplexed genetic engineering of human hematopoietic stem and progenitor cells using CRISPR/Cas9 and AAV6 |
Spinal Muscular Atrophy ( SMA ) is caused by diminished Survival of Motor Neuron ( SMN ) protein , leading to neuromuscular junction ( NMJ ) dysfunction and spinal motor neuron ( MN ) loss . Here , we report that reduced SMN function impacts the action of a pertinent microRNA and its mRNA target in MNs . Loss of the C ... | Spinal muscular atrophy is a genetic disease that causes muscles to gradually weaken . In people with the disease , the nerve cells that control the movement of muscles – called motor neurons – deteriorate over time , hindering the person’s mobility and shortening their life expectancy . Spinal muscular atrophy is usua... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2017 | Decreased microRNA levels lead to deleterious increases in neuronal M2 muscarinic receptors in Spinal Muscular Atrophy models |
DNA double strand breaks ( DSBs ) can be repaired by either recombination-based or direct ligation-based mechanisms . Pathway choice is made at the level of DNA end resection , a nucleolytic processing step , which primes DSBs for repair by recombination . Resection is thus under cell cycle control , but additionally r... | DNA is continually exposed to chemicals and radiation that cause various forms of DNA damage . One of the most toxic forms of DNA damage is the double strand break , in which both strands of the double helix are broken . These breaks can be mended in two ways: by directly joining the broken ends together , or via a pro... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"cell",
"biology"
] | 2017 | Targeting of the Fun30 nucleosome remodeller by the Dpb11 scaffold facilitates cell cycle-regulated DNA end resection |
Neurotransmitter release requires SNARE complexes to bring membranes together , NSF-SNAPs to recycle the SNAREs , Munc18-1 and Munc13s to orchestrate SNARE complex assembly , and Synaptotagmin-1 to trigger fast Ca2+-dependent membrane fusion . However , it is unclear whether Munc13s function upstream and/or downstream ... | In the brain , neurons communicate with each other using small molecules called neurotransmitters . Electrical signals in one neuron trigger the release of the neurotransmitters , which then bind to receptor proteins on another neuron nearby . Neurotransmitters are packaged into small compartments called synaptic vesic... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"structural",
"biology",
"and",
"molecular",
"biophysics",
"neuroscience"
] | 2016 | Functional synergy between the Munc13 C-terminal C1 and C2 domains |
Previous works suggested that neutralizing intratumoral lactic acidosis combined with glucose deprivation may deliver an effective approach to control tumor . We did a pilot clinical investigation , including a nonrandomized ( 57 patients with large HCC ) and a randomized controlled ( 20 patients with large HCC ) study... | Surgery is the main treatment for liver cancer , but the most common liver cancer – called hepatocellular carcinoma – can sometimes become too large to remove safely . An alternative option to kill the tumor is to block its blood supply via a process called embolization . This procedure deprives the tumor cells of oxyg... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"medicine",
"cancer",
"biology"
] | 2016 | A nonrandomized cohort and a randomized study of local control of large hepatocarcinoma by targeting intratumoral lactic acidosis |
Intracisternal A-particles ( IAPs ) are endogenous retroviruses ( ERVs ) responsible for most insertional mutations in the mouse . Full-length IAPs harbour genes flanked by long terminal repeats ( LTRs ) . Here , we identify a solo LTR IAP variant ( Iap5-1solo ) recently formed in the inbred C57BL/6J mouse strain . In ... | Our genome provides a complete set of genetic instructions for life . It begins by directing the growth and development of the embryo , and subsequently supports all the cells of the adult body in their daily routines . Yet approximately 10% of the DNA in mammalian genomes is made up of sequences originating from past ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"chromosomes",
"and",
"gene",
"expression",
"genetics",
"and",
"genomics"
] | 2021 | A spontaneous genetically induced epiallele at a retrotransposon shapes host genome function |
Precise temporal coordination of slow oscillations ( SO ) and sleep spindles is a fundamental mechanism of sleep-dependent memory consolidation . SO and spindle morphology changes considerably throughout development . Critically , it remains unknown how the precise temporal coordination of these two sleep oscillations ... | Sleep is essential for consolidating the memories that we made during the day . As we lie asleep , unconscious , our brain is busy processing the day’s memories , which travel through three parts of the brain before they are filed away . First , the hippocampus , the part of the brain that stores memories temporarily ,... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology",
"neuroscience"
] | 2020 | Slow oscillation-spindle coupling predicts enhanced memory formation from childhood to adolescence |
During courtship males attract females with elaborate behaviors . In mice , these displays include ultrasonic vocalizations . Ultrasonic courtship vocalizations were previously attributed to the courting male , despite evidence that both sexes produce virtually indistinguishable vocalizations . Because of this similari... | Male songbirds are famous for using singing to attract mates , and many other animals also make noises as part of their mating rituals . Male mice , for example , are known to make high-pitched noises as they court females—but these noises are beyond the range of human hearing . The scent of female mice is enough to ca... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2015 | Female mice ultrasonically interact with males during courtship displays |
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