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Matrix assembly, cell polarization, and cell survival: analysis of peri-implantation development with cultured embryonic stem cells.

Authors
  • Li, Shaohua
  • Yurchenco, Peter D
Type
Published Article
Journal
Methods in Molecular Biology
Publication Date
Jan 01, 2006
Volume
329
Pages
113–125
Identifiers
PMID: 16845988
Source
Medline
License
Unknown

Abstract

A variety of mutations, including those affecting laminin expression and basement membrane, cause early embryonic lethality in the peri-implantation period. However, low cell numbers and inaccessibility of these small embryos make it difficult to study the molecular mechanisms that underlie these defects. Embryoid bodies cultured as suspended spherical cell aggregates derived from normal and defective embryonic stem cells provide a tractable experimental system with which the early developmental processes can be recapitulated under defined conditions. Thus, endoderm formation and maturation, basement membrane assembly and its signaling consequences, epiblast polarization, apoptosis, and cavitation can be studied using a combination of genetic, biochemical, cell, and molecular biology approaches.

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