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Segmentation of Developing Human Embryo in Time-lapse Microscopy

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Recent studies have aimed to convert cultured human pluripotent cells to a naive state, but it remains unclear to what extent the resulting cells recapitulate in vivo naive pluripotency. Here we propose a set of molecular criteria for evaluating the naive ...

Cell Press2016

Transposable elements (TEs) may account for up to two-thirds of the human genome, and as genomic threats they are subjected to epigenetic control mechanisms engaged from the earliest stages of embryonic development. We previously determined that an importa ...

2016

Essential role of the TFIID subunit TAF4 in murine embryogenesis and embryonic stem cell differentiation

Daniel Alpern

TAF4 (TATA-binding protein-associated factor 4) and its paralogue TAF4b are components of the TFIID core module. We inactivated the murine Taf4a gene to address Taf4 function during embryogenesis. Here we show that Taf4a(-/-) embryos survive until E9.5 whe ...

Nature Publishing Group2016

Epiblast-specific loss of HCF-1 leads to failure in anterior-posterior axis specification

Daniel Constam, Winship Herr, Sylvain Frédéric Bessonnard

Mammalian Host-Cell Factor 1 (HCF-1), a transcriptional co-regulator, plays important roles during the cell-division cycle in cell culture, embryogenesis as well as adult tissue. In mice, HCF-1 is encoded by the X-chromosome-linked Hcfc1 gene. Induced Hcfc ...

Academic Press Inc Elsevier Science2016

Possibilities in Germ Cell Research: An Engineering Insight

Omid Mashinchian, Morteza Mahmoudi

Germ cells (GCs) are responsible for fertility and disruptions in their development or function cause infertility. However, current knowledge about the diverse mechanisms involved in GC development and function is still in its infancy. This is mainly becau ...

Elsevier Science London2015

Cellular hallmarks reveal restricted aerobic metabolism at thermal limits

Pierre Gönczy, Coralie Busso, Aitana Neves da Silva

All organisms live within a given thermal range, but little is known about the mechanisms setting the limits of this range. We uncovered cellular features exhibiting signature changes at thermal limits in Caenorhabditis elegans embryos. These included chan ...

eLife Sciences Organisation2015

Transposable elements (TEs) account for at least 50% of the human genome. They constitute essential motors of evolution through their ability to modify genomic architecture, mutate genes and regulate gene expression. Accordingly, TEs are subject to tight e ...

Annual Reviews2015

Dynamic Reorganization of Extremely Long-Range Promoter-Promoter Interactions between Two States of Pluripotency

Pierre Raymond Fabre

Serum-to-2i interconversion of mouse embryonic stem cells (mESCs) is a valuable in vitro model for early embryonic development. To assess whether 3D chromatin organization changes during this transition, we established Capture Hi-C with target-sequence enr ...

Cell Press2015

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Studies of the real-time dynamics of embryonic development require a gentle embryo handling method, the possibility of long-term live imaging during the complete embryogenesis, as well as of parallelization providing a population's statistics, while keepin ...

Nature Publishing Group2015

Multi-dimensional imaging and phenotyping of C. elegans embryos via an automated microfluidic device

Johan Auwerx, Martinus Gijs, Thomas Lehnert, Matteo Cornaglia, Laurent Mouchiroud, Alexis Pierre Henri Marette, Virginija Jovaisaite, Shreya Narasimhan

We introduce a microfluidic platform for automated on-chip worm culture, creation of synchronized embryo microarrays, and long-term parallel live imaging of Caenorhabditis elegans embryos. Our device allows studying well-defined embryo populations at unpre ...

2015