Concept

Chimère (génétique)

Publications associées (36)

Sperm-contributed centrioles segregate stochastically into blastomeres of 4-cell stage Caenorhabditis elegans embryos

Whereas both sperm and egg contribute nuclear genetic material to the zygote in metazoan organisms, the inheritance of other cellular constituents is unequal between the 2 gametes. Thus, 2 copies of the centriole are contributed solely by the sperm to the ...

GENETICS SOCIETY AMERICA2023

Deciphering the molecular events leading to the global restoration of the chromatin landscape during mitotic exit

Silja Michelle Placzek

Two fundamental properties of embryonic stem cells (ESCs) are their ability to self-renew and differentiate into all somatic cell types. Maintenance of their identity faces major challenges when transitioning through mitosis, as most DNA-binding proteins a ...

EPFL2023

Generation of a Gal4-dependent gene recombination and illuminating mouse

Freddy Radtke

Cell labeling technologies, including the Cre/loxP system, are powerful tools in developmental biology. Although the conventional Cre/loxP system has been extensively used to label the expression of specific genes, it is less frequently used for labeling p ...

INT PRESS EDITING CENTRE INC2022

In vitro modeling of early mouse development

Mehmet Ugur Girgin

Previous attempts to recapitulate embryogenesis in a developmentally relevant context started with aggregates composed of a few thousand ESCs, termed embryoid bodies (EB), that upon induction of differentiation reveal a surprising level of autonomous cell ...

EPFL2020

High-throughput automated organoid culture via stem-cell aggregation in microcavity arrays

Matthias Lütolf, Gerardo Turcatti, George Coukos, Krisztian Homicsko, Nathalie Brandenberg, Fabien Kuttler, Camilla Carla Alma Ceroni, Nikolche Gjorevski

Stem-cell-derived epithelial organoids are routinely used for the biological and biomedical modelling of tissues. However, the complexity, lack of standardization and quality control of stem cell culture in solid extracellular matrices hampers the routine ...

NATURE PUBLISHING GROUP2020

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

Venus trap in the mouse embryo reveals distinct molecular dynamics underlying specification of first embryonic lineages

Didier Trono, Anna Claire Groner

Mammalian development begins with the segregation of embryonic and extra-embryonic lineages in the blastocyst. Recent studies revealed cell-to-cell gene expression heterogeneity and dynamic cell rearrangements during mouse blastocyst formation. Thus, mecha ...

2015

LRIG1 inhibits STAT3-dependent inflammation to maintain corneal homeostasis

Yann Barrandon, Andrea Zaffalon

Corneal integrity and transparency are indispensable for good vision. Cornea homeostasis is entirely dependent upon corneal stem cells, which are required for complex wound-healing processes that restore corneal integrity following epithelial damage. Here, ...

American Society for Clinical Investigation2014

Bioengineering approaches to guide stem cell-based organogenesis

Matthias Lütolf, Adrian Ranga, Nikolche Gjorevski

During organogenesis, various molecular and physical signals are orchestrated in space and time to sculpt multiple cell types into functional tissues and organs. The complex and dynamic nature of the process has hindered studies aimed at delineating morpho ...

Company of Biologists2014

TRIM28 repression of retrotransposon-based enhancers is necessary to preserve transcriptional dynamics in embryonic stem cells

Didier Trono, Adamantia Kapopoulou, Andrea Corsinotti, Helen Mary Rowe, Johan Jakobsson

TRIM28 is critical for the silencing of endogenous retroviruses (ERVs) in embryonic stem (ES) cells. Here, we reveal that an essential impact of this process is the protection of cellular gene expression in early embryos from perturbation by cis-acting act ...

2013

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