Abstract:
:The segregation of the trophectoderm (TE) from the inner cell mass (ICM) in the mouse blastocyst is determined by position-dependent Hippo signaling. However, the window of responsiveness to Hippo signaling, the exact timing of lineage commitment and the overall relationship between cell commitment and global gene expression changes are still unclear. Single-cell RNA sequencing during lineage segregation revealed that the TE transcriptional profile stabilizes earlier than the ICM and prior to blastocyst formation. Using quantitative Cdx2-eGFP expression as a readout of Hippo signaling activity, we assessed the experimental potential of individual blastomeres based on their level of Cdx2-eGFP expression and correlated potential with gene expression dynamics. We find that TE specification and commitment coincide and occur at the time of transcriptional stabilization, whereas ICM cells still retain the ability to regenerate TE up to the early blastocyst stage. Plasticity of both lineages is coincident with their window of sensitivity to Hippo signaling.
journal_name
Elifejournal_title
eLifeauthors
Posfai E,Petropoulos S,de Barros FRO,Schell JP,Jurisica I,Sandberg R,Lanner F,Rossant Jdoi
10.7554/eLife.22906subject
Has Abstractpub_date
2017-02-22 00:00:00issn
2050-084Xpii
22906journal_volume
6pub_type
杂志文章相关文献
eLife文献大全abstract::Protein synthesis ends when a ribosome reaches an mRNA stop codon. Release factors (RFs) decode the stop codon, hydrolyze peptidyl-tRNA to release the nascent protein, and then dissociate to allow ribosome recycling. To visualize termination by RF2, we resolved a cryo-EM ensemble of E. coli 70S•RF2 structures at up to...
journal_title:eLife
pub_type: 杂志文章
doi:10.7554/eLife.46850
更新日期:2019-09-12 00:00:00
abstract::Site-specific histone ubiquitylation plays a central role in orchestrating the response to DNA double-strand breaks (DSBs). DSBs elicit a cascade of events controlled by the ubiquitin ligase RNF168, which promotes the accumulation of repair factors such as 53BP1 and BRCA1 on the chromatin flanking the break site. RNF1...
journal_title:eLife
pub_type: 杂志文章
doi:10.7554/eLife.23872
更新日期:2017-04-13 00:00:00
abstract::Macrophages derive from multiple sources of hematopoietic progenitors. Most macrophages require colony-stimulating factor 1 receptor (CSF1R), but some macrophages persist in the absence of CSF1R. Here, we analyzed mpeg1:GFP-expressing macrophages in csf1r-deficient zebrafish and report that embryonic macrophages emerg...
journal_title:eLife
pub_type: 杂志文章
doi:10.7554/eLife.53403
更新日期:2020-05-05 00:00:00
abstract::Islet amyloidosis by IAPP contributes to pancreatic β-cell death in diabetes, but the nature of toxic IAPP species remains elusive. Using concurrent time-resolved biophysical and biological measurements, we define the toxic species produced during IAPP amyloid formation and link their properties to induction of rat IN...
journal_title:eLife
pub_type: 杂志文章
doi:10.7554/eLife.12977
更新日期:2016-05-23 00:00:00
abstract::Convenient, efficient and fast whole-brain delivery of transgenes presents a persistent experimental challenge in neuroscience. Recent advances demonstrate whole-brain gene delivery by retro-orbital injection of virus, but slow and sparse expression and the large injection volumes required make this approach cumbersom...
journal_title:eLife
pub_type: 杂志文章
doi:10.7554/eLife.53639
更新日期:2020-05-18 00:00:00
abstract::Protein aggregation appears to originate from partially unfolded conformations that are sampled through stochastic fluctuations of the native protein. It has been a challenge to characterize these fluctuations, under native like conditions. Here, the conformational dynamics of the full-length (23-231) mouse prion prot...
journal_title:eLife
pub_type: 杂志文章
doi:10.7554/eLife.44766
更新日期:2019-04-26 00:00:00
abstract::The palmitoyl acyltransferase (PAT) ZDHHC14 is highly expressed in the hippocampus and is the only PAT predicted to bind Type-I PDZ domain-containing proteins. However, ZDHHC14's neuronal roles are unknown. Here, we identify the PDZ domain-containing Membrane-associated Guanylate Kinase (MaGUK) PSD93 as a direct ZDHHC...
journal_title:eLife
pub_type: 杂志文章
doi:10.7554/eLife.56058
更新日期:2020-11-13 00:00:00
abstract::More than 1500 fossils from the Rising Star cave system in South Africa have been assigned to a new human species, Homo naledi, which displays a unique combination of primitive and derived traits throughout the skeleton. ...
journal_title:eLife
pub_type: 评论,杂志文章
doi:10.7554/eLife.10627
更新日期:2015-09-10 00:00:00
abstract::Plasma Membrane is the primary structure for adjusting to ever changing conditions. PM sub-compartmentalization in domains is thought to orchestrate signaling. Yet, mechanisms governing membrane organization are mostly uncharacterized. The plant-specific REMORINs are proteins regulating hormonal crosstalk and host inv...
journal_title:eLife
pub_type: 杂志文章
doi:10.7554/eLife.26404
更新日期:2017-07-31 00:00:00
abstract::The mechanisms underlying axon regeneration in mature neurons are relevant to the understanding of normal nervous system maintenance and for developing therapeutic strategies for injury. Here, we report novel pathways in axon regeneration, identified by extending our previous function-based screen using the C. elegans...
journal_title:eLife
pub_type: 杂志文章
doi:10.7554/eLife.39756
更新日期:2018-11-21 00:00:00
abstract::Cortical plasticity is fundamental to motor recovery following cortical perturbation. However, it is still unclear how this plasticity is induced at a functional circuit level. Here, we investigated motor recovery and underlying neural plasticity upon optogenetic suppression of a cortical area for eye movement. Using ...
journal_title:eLife
pub_type: 杂志文章
doi:10.7554/eLife.50855
更新日期:2019-11-05 00:00:00
abstract::Acquisition of pluripotency is driven largely at the transcriptional level by activators OCT4, SOX2, and NANOG that must in turn cooperate with diverse coactivators to execute stem cell-specific gene expression programs. Using a biochemically defined in vitro transcription system that mediates OCT4/SOX2 and coactivato...
journal_title:eLife
pub_type: 杂志文章
doi:10.7554/eLife.03573
更新日期:2014-11-19 00:00:00
abstract::Most evolutionary thinking is based on the notion of fitness and related ideas such as fitness landscapes and evolutionary optima. Nevertheless, it is often unclear what fitness actually is, and its meaning often depends on the context. Here we argue that fitness should not be a basal ingredient in verbal or mathemati...
journal_title:eLife
pub_type: 杂志文章
doi:10.7554/eLife.23804
更新日期:2017-02-15 00:00:00
abstract::Secondary metabolites have a great potential as pharmaceuticals, but there are only a few examples where regulation of gene cluster expression has been correlated with ecological and physiological relevance for the producer. Here, signals, mediators, and biological effects of terrein production were studied in the fun...
journal_title:eLife
pub_type: 杂志文章
doi:10.7554/eLife.07861
更新日期:2015-07-14 00:00:00
abstract::Contrary to dogma, evolutionarily young and dynamic genes can encode essential functions. We find that evolutionarily dynamic ZAD-ZNF genes, which encode the most abundant class of insect transcription factors, are more likely to encode essential functions in Drosophila melanogaster than ancient, conserved ZAD-ZNF gen...
journal_title:eLife
pub_type: 杂志文章
doi:10.7554/eLife.63368
更新日期:2020-11-10 00:00:00
abstract::The faithful segregation of eukaryotic chromosomes in mitosis requires that the genome be duplicated completely prior to anaphase. However, cells with large genomes sometimes fail to complete replication during interphase and instead enter mitosis with regions of incompletely replicated DNA. These regions are processe...
journal_title:eLife
pub_type: 杂志文章
doi:10.7554/eLife.48686
更新日期:2019-09-23 00:00:00
abstract::Microbial fitness screens are a key technique in functional genomics. We present an all-in-one solution, pyphe, for automating and improving data analysis pipelines associated with large-scale fitness screens, including image acquisition and quantification, data normalisation, and statistical analysis. Pyphe is versat...
journal_title:eLife
pub_type: 杂志文章
doi:10.7554/eLife.55160
更新日期:2020-06-16 00:00:00
abstract::Whether neurons encode information through their spike rates, their activity times or both is an ongoing debate in systems neuroscience. Here, we tested whether humans can discriminate between a pair of temporal odor mixtures (TOMs) composed of the same two components delivered in rapid succession in either one tempor...
journal_title:eLife
pub_type: 杂志文章
doi:10.7554/eLife.49734
更新日期:2020-02-07 00:00:00
abstract::We report the crystal structure of nuclear import receptor Importin-9 bound to its cargo, the histones H2A-H2B. Importin-9 wraps around the core, globular region of H2A-H2B to form an extensive interface. The nature of this interface coupled with quantitative analysis of deletion mutants of H2A-H2B suggests that the N...
journal_title:eLife
pub_type: 杂志文章
doi:10.7554/eLife.43630
更新日期:2019-03-11 00:00:00
abstract::An analysis of worldwide human genetic variation reveals the footprints of ancient changes in genomic mutation processes. ...
journal_title:eLife
pub_type: 评论,杂志文章
doi:10.7554/eLife.27605
更新日期:2017-05-17 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
pub_type: 杂志文章
doi:10.7554/eLife.04871
更新日期:2015-03-16 00:00:00
abstract::Cancer prevention is predicted to result in more positive therapeutic outcomes than post-diagnostic interventions, and so may be a viable option for future personalized medicine. ...
journal_title:eLife
pub_type: 评论,杂志文章
doi:10.7554/eLife.09713
更新日期:2015-08-05 00:00:00
abstract::Recent advances in single-cell transcriptomics techniques have opened the door to the study of gene regulatory networks (GRNs) at the single-cell level. Here, we studied the GRNs controlling the emergence of hematopoietic stem and progenitor cells from mouse embryonic endothelium using a combination of single-cell tra...
journal_title:eLife
pub_type: 杂志文章
doi:10.7554/eLife.29312
更新日期:2018-03-20 00:00:00
abstract::Host-virus arms races are inherently asymmetric; viruses evolve much more rapidly than host genomes. Thus, there is high interest in discovering mechanisms by which host genomes keep pace with rapidly evolving viruses. One family of restriction factors, the APOBEC3 (A3) cytidine deaminases, has undergone positive sele...
journal_title:eLife
pub_type: 杂志文章
doi:10.7554/eLife.58436
更新日期:2020-06-01 00:00:00
abstract::Nonsense-mediated mRNA decay (NMD) is a surveillance pathway that degrades aberrant mRNAs and also regulates the expression of a wide range of physiological transcripts. RUVBL1 and RUVBL2 AAA-ATPases form an hetero-hexameric ring that is part of several macromolecular complexes such as INO80, SWR1, and R2TP. Interesti...
journal_title:eLife
pub_type: 杂志文章
doi:10.7554/eLife.63042
更新日期:2020-11-18 00:00:00
abstract::The clone size distribution of the human naive T-cell receptor (TCR) repertoire is an important determinant of adaptive immunity. We estimated the abundance of TCR sequences in samples of naive T cells from blood using an accurate quantitative sequencing protocol. We observe most TCR sequences only once, consistent wi...
journal_title:eLife
pub_type: 杂志文章
doi:10.7554/eLife.49900
更新日期:2020-03-18 00:00:00
abstract::Polarity is a shared feature of most cells. In epithelia, apical-basal polarity often coexists, and sometimes intersects with planar cell polarity (PCP), which orients cells in the epithelial plane. From a limited set of core building blocks (e.g. the Par complexes for apical-basal polarity and the Frizzled/Dishevelle...
journal_title:eLife
pub_type: 杂志文章
doi:10.7554/eLife.25014
更新日期:2017-06-30 00:00:00
abstract::Macrophage-mediated phagocytosis and cytokine production represent the front lines of resistance to bacterial invaders. A key feature of this pro-inflammatory response in mammals is the complex remodeling of cellular metabolism towards aerobic glycolysis. Although the function of bactericidal macrophages is highly con...
journal_title:eLife
pub_type: 杂志文章
doi:10.7554/eLife.50414
更新日期:2019-10-14 00:00:00
abstract::The dorsal raphe nucleus (DRN) is an important source of neuromodulators and has been implicated in a wide variety of behavioral and neurological disorders. The DRN is subdivided into distinct anatomical subregions comprised of multiple cell types, and its complex cellular organization has impeded efforts to investiga...
journal_title:eLife
pub_type: 杂志文章
doi:10.7554/eLife.46464
更新日期:2019-08-14 00:00:00
abstract::AMPARs control fast synaptic communication between neurons and their function relies on auxiliary subunits, which importantly modulate channel properties. Although it has been suggested that AMPARs can bind to TARPs with variable stoichiometry, little is known about the effect that this stoichiometry exerts on certain...
journal_title:eLife
pub_type: 杂志文章
doi:10.7554/eLife.53946
更新日期:2020-05-26 00:00:00