CRISPR/Cas9 and active genetics-based trans-species replacement of the endogenous Drosophila kni-L2 CRM reveals unexpected complexity.

abstract：:While specific mutations allow organisms to adapt to stressful environments, most changes in an organism's DNA negatively impact fitness. The mutation rate is therefore strictly regulated and often considered a slowly-evolving parameter. In contrast, we demonstrate an unexpected flexibility in cellular mutation rates ...

journal_title：eLife

authors： Swings T,Van den Bergh B,Wuyts S,Oeyen E,Voordeckers K,Verstrepen KJ,Fauvart M,Verstraeten N,Michiels J

更新日期：2017-05-02 00:00:00

abstract：:Upon detecting endoplasmic reticulum (ER) stress, the unfolded protein response (UPR) orchestrates adaptive cellular changes to reestablish homeostasis. If stress resolution fails, the UPR commits the cell to apoptotic death. Here we show that in hematopoietic cells, including multiple myeloma (MM), lymphoma, and leuk...

journal_title：eLife

authors： Shemorry A,Harnoss JM,Guttman O,Marsters SA,Kőműves LG,Lawrence DA,Ashkenazi A

更新日期：2019-08-27 00:00:00

abstract：:RNA molecules cause the proteins involved in the formation of germ granules to coalesce into liquid droplets. ...

journal_title：eLife

authors： Trcek T,Lehmann R

更新日期：2017-01-24 00:00:00

abstract：:Regulation of food intake is fundamental to energy homeostasis in animals. The contribution of non-nutritive and metabolic signals in regulating feeding is unclear. Here we show that enteric neurons play a major role in regulating feeding through specialized mechanosensory ion channels in Drosophila. Modulating activi...

journal_title：eLife

authors： Olds WH,Xu T

更新日期：2014-10-06 00:00:00

abstract：:Individuals must predict future events to proactively guide their behavior. Predicting when events will occur is a critical component of these expectations. Temporal expectations are often generated based on individual cue-duration relationships. However, the durations associated with different environmental cues will...

journal_title：eLife

authors： De Corte BJ,Della Valle RR,Matell MS

更新日期：2018-11-02 00:00:00

abstract：:The cellular architecture of the ventral tegmental area (VTA), the main hub of the brain reward system, remains only partially characterized. To extend the characterization to inhibitory neurons, we have identified three distinct subtypes of somatostatin (Sst)-expressing neurons in the mouse VTA. These neurons differ ...

journal_title：eLife

authors： Nagaeva E,Zubarev I,Bengtsson Gonzales C,Forss M,Nikouei K,de Miguel E,Elsilä L,Linden AM,Hjerling-Leffler J,Augustine GJ,Korpi ER

更新日期：2020-08-04 00:00:00

abstract：:Two recently discovered transcription factors stop cells from dividing when plants face extreme heat and DNA damage. ...

journal_title：eLife

authors： Eekhout T,De Veylder L

更新日期：2019-04-09 00:00:00

abstract：:Transient receptor potential (TRP) ion channels in peripheral sensory neurons are functionally regulated by hydrolysis of the phosphoinositide PI(4,5)P2 and changes in the level of protein kinase mediated phosphorylation following activation of various G protein coupled receptors. We now show that the activity of TRPM...

journal_title：eLife

authors： Quallo T,Alkhatib O,Gentry C,Andersson DA,Bevan S

更新日期：2017-08-15 00:00:00

abstract：:How does the skeleton detect and adapt to changes in the mechanical load it has to carry? ...

journal_title：eLife

authors： Haelterman N,Lim J

更新日期：2019-10-07 00:00:00

abstract：:The pressure for every research article to tell a clear story often leads researchers in the life sciences to exclude experiments that 'did not work' when they write up their results. However, this practice can lead to reporting bias if the decisions about which experiments to exclude are taken after data have been co...

journal_title：eLife

authors： Neves K,Amaral OB

更新日期：2020-05-22 00:00:00

abstract：:Dephosphorylation of eukaryotic translation initiation factor 2a (eIF2a) restores protein synthesis at the waning of stress responses and requires a PP1 catalytic subunit and a regulatory subunit, PPP1R15A/GADD34 or PPP1R15B/CReP. Surprisingly, PPP1R15-PP1 binary complexes reconstituted in vitro lacked substrate selec...

journal_title：eLife

authors： Chen R,Rato C,Yan Y,Crespillo-Casado A,Clarke HJ,Harding HP,Marciniak SJ,Read RJ,Ron D

更新日期：2015-03-16 00:00:00

abstract：:When a T cell and an antigen-presenting cell form an immunological synapse, rapid dynein-driven translocation of the centrosome toward the contact site leads to reorganization of microtubules and associated organelles. Currently, little is known about how the regulation of microtubule dynamics contributes to this proc...

journal_title：eLife

authors： Hooikaas PJ,Damstra HG,Gros OJ,van Riel WE,Martin M,Smits YT,van Loosdregt J,Kapitein LC,Berger F,Akhmanova A

更新日期：2020-12-21 00:00:00

abstract：:Recent epidemiological and laboratory-based studies suggest that the anti-diabetic drug metformin prevents cancer progression. How metformin diminishes tumor growth is not fully understood. In this study, we report that in human cancer cells, metformin inhibits mitochondrial complex I (NADH dehydrogenase) activity and...

journal_title：eLife

authors： Wheaton WW,Weinberg SE,Hamanaka RB,Soberanes S,Sullivan LB,Anso E,Glasauer A,Dufour E,Mutlu GM,Budigner GS,Chandel NS

更新日期：2014-05-13 00:00:00

abstract：:Pancreatic ductal adenocarcinoma (PDAC) is a devastating disease. Although rigorous efforts identified the presence of 'cancer stem cells (CSCs)' in PDAC and molecular markers for them, stem cell dynamics in vivo have not been clearly demonstrated. Here we focused on Doublecortin-like kinase 1 (Dclk1), known as a CSC ...

journal_title：eLife

authors： Maruno T,Fukuda A,Goto N,Tsuda M,Ikuta K,Hiramatsu Y,Ogawa S,Nakanishi Y,Yamaga Y,Yoshioka T,Takaori K,Uemoto S,Saur D,Chiba T,Seno H

更新日期：2021-01-04 00:00:00

abstract：:Vitamin B12 (cobalamin) is the most complex B-type vitamin and is synthetized exclusively in a limited number of prokaryotes. Its biologically active variants contain rare organometallic bonds, which are used by enzymes in a variety of central metabolic pathways such as L-methionine synthesis and ribonucleotide reduct...

journal_title：eLife

authors： Santos JA,Rempel S,Mous ST,Pereira CT,Ter Beek J,de Gier JW,Guskov A,Slotboom DJ

更新日期：2018-05-29 00:00:00

abstract：:Striatal dysfunction plays an important role in dystonia, but the striatal cell types that contribute to abnormal movements are poorly defined. We demonstrate that conditional deletion of the DYT1 dystonia protein torsinA in embryonic progenitors of forebrain cholinergic and GABAergic neurons causes dystonic-like twis...

journal_title：eLife

authors： Pappas SS,Darr K,Holley SM,Cepeda C,Mabrouk OS,Wong JM,LeWitt TM,Paudel R,Houlden H,Kennedy RT,Levine MS,Dauer WT

更新日期：2015-06-08 00:00:00

abstract：:Tumor-initiating stem cells (SCs) exhibit distinct patterns of transcription factors and gene expression compared to healthy counterparts. Here, we show that dramatic shifts in large open-chromatin domain (super-enhancer) landscapes underlie these differences and reflect tumor microenvironment. By in vivo super-enhanc...

journal_title：eLife

authors： Yang H,Schramek D,Adam RC,Keyes BE,Wang P,Zheng D,Fuchs E

更新日期：2015-11-21 00:00:00

abstract：:Hsp90 is a homodimeric ATP-dependent molecular chaperone that remodels its substrate 'client' proteins, facilitating their folding and activating them for biological function. Despite decades of research, the mechanism connecting ATP hydrolysis and chaperone function remains elusive. Particularly puzzling has been the...

journal_title：eLife

authors： Elnatan D,Betegon M,Liu Y,Ramelot T,Kennedy MA,Agard DA

更新日期：2017-07-25 00:00:00

abstract：:KdpFABC is an ATP-dependent K+ pump that ensures bacterial survival in K+-deficient environments. Whereas transcriptional activation of kdpFABC expression is well studied, a mechanism for down-regulation when K+ levels are restored has not been described. Here, we show that KdpFABC is inhibited when cells return to a ...

journal_title：eLife

authors： Sweet ME,Zhang X,Erdjument-Bromage H,Dubey V,Khandelia H,Neubert TA,Pedersen BP,Stokes DL

更新日期：2020-09-21 00:00:00

abstract：:Experience-dependent reorganisation of functional maps in the cerebral cortex is well described in the primary sensory cortices. However, there is relatively little evidence for such cortical reorganisation over the short-term. Using human somatosensory cortex as a model, we investigated the effects of a 24 hr gluing ...

journal_title：eLife

authors： Kolasinski J,Makin TR,Logan JP,Jbabdi S,Clare S,Stagg CJ,Johansen-Berg H

更新日期：2016-12-30 00:00:00

abstract：:Humans and other animals routinely identify and attend to sensory stimuli so as to rapidly acquire rewards or avoid aversive experiences. Emotional arousal, a process mediated by the amygdala, can enhance attention to stimuli in a non-spatial manner. However, amygdala neural activity was recently shown to encode spati...

journal_title：eLife

authors： Peck CJ,Salzman CD

更新日期：2014-10-30 00:00:00

abstract：:Previous studies had shown that the integration of genome wide expression profiles, in metabolic tissues, with genetic and phenotypic variance, provided valuable insight into the underlying molecular mechanisms. We used RNA-Seq to characterize hypothalamic transcriptome in 99 inbred strains of mice from the Hybrid Mou...

journal_title：eLife

authors： Hasin-Brumshtein Y,Khan AH,Hormozdiari F,Pan C,Parks BW,Petyuk VA,Piehowski PD,Brümmer A,Pellegrini M,Xiao X,Eskin E,Smith RD,Lusis AJ,Smith DJ

更新日期：2016-09-13 00:00:00

abstract：:Although seasonality is widespread and can cause fluctuations in the intensity and direction of natural selection, we have little information about the consequences of seasonal fitness trade-offs for population dynamics. Here we exposed populations of Drosophila melanogaster to repeated seasonal changes in resources a...

journal_title：eLife

authors： Betini GS,McAdam AG,Griswold CK,Norris DR

更新日期：2017-02-06 00:00:00

abstract：:In order to assess the contribution of a central clock in the hypothalamic suprachiasmatic nucleus (SCN) to circadian behavior and the organization of peripheral clocks, we generated forebrain/SCN-specific Bmal1 knockout mice by using floxed Bmal1 and pan-neuronal Cre lines. The forebrain knockout mice showed >90% del...

journal_title：eLife

authors： Izumo M,Pejchal M,Schook AC,Lange RP,Walisser JA,Sato TR,Wang X,Bradfield CA,Takahashi JS

更新日期：2014-12-19 00:00:00

abstract：:Disruption of the sumoylation/desumoylation equilibrium is associated with several disease states such as cancer and infections, however the mechanisms regulating the global SUMO balance remain poorly defined. Here, we show that infection by Shigella flexneri, the causative agent of human bacillary dysentery, switches...

journal_title：eLife

authors： Lapaquette P,Fritah S,Lhocine N,Andrieux A,Nigro G,Mounier J,Sansonetti P,Dejean A

更新日期：2017-12-12 00:00:00

abstract：:In yeast, DNA breaks are usually repaired by homologous recombination (HR). An early step for HR pathways is formation of a heteroduplex, in which a single-strand from the broken DNA molecule pairs with a strand derived from an intact DNA molecule. If the two strands of DNA are not identical, there will be mismatches ...

journal_title：eLife

authors： Yin Y,Dominska M,Yim E,Petes TD

更新日期：2017-07-17 00:00:00

abstract：:Lymph nodes (LNs) are a common site of metastasis in solid cancers, and cutaneous melanomas show inherent properties of LN colonization. However, interactions between LN stroma and pioneer metastatic cells during metastatic colonization remain largely uncharacterized. Here we studied mice implanted with GFP-expressing...

journal_title：eLife

authors： Singh R,Choi BK

更新日期：2019-12-24 00:00:00

abstract：:Cell lineages provide the framework for understanding how cell fates are decided during development. Describing cell lineages in most organisms is challenging; even a fruit fly larva has ~50,000 cells and a small mammal has >1 billion cells. Recently, the idea of applying CRISPR to induce mutations during development,...

journal_title：eLife

authors： Salvador-Martínez I,Grillo M,Averof M,Telford MJ

更新日期：2019-01-28 00:00:00

abstract：:Processing bodies (PBs) are cytoplasmic mRNP granules that assemble via liquid-liquid phase separation and are implicated in the decay or storage of mRNAs. How PB assembly is regulated in cells remains unclear. Previously, we identified the ATPase activity of the DEAD-box protein Dhh1 as a key regulator of PB dynamics...

journal_title：eLife

authors： Sachdev R,Hondele M,Linsenmeier M,Vallotton P,Mugler CF,Arosio P,Weis K

更新日期：2019-01-16 00:00:00

abstract：:The germ line provides the cellular link between generations of multicellular organisms, its cells entering the meiotic cell cycle only once each generation. However, the mechanisms governing this initiation of meiosis remain poorly understood. Here, we examined cells undergoing meiotic initiation in mice, and we foun...

journal_title：eLife

authors： Kojima ML,de Rooij DG,Page DC

更新日期：2019-02-27 00:00:00