Molecular maturation of cell adhesion systems during mouse early development |
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Authors: | T. P. Fleming L. Butler X. Lei J. Collins Q. Javed B. Sheth N. Stoddart A. Wild M. Hay |
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Affiliation: | (1) Department of Biology, Biomedical Sciences Building, University of Southampton, Bassett Crescent East, SO9 3TU Southampton, UK |
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Abstract: | During cleavage, the mouse embryo expresses a variety of cell adhesion systems on its cell surfaces. We have reviewed biogenetic and assembly criteria for the formation of the uvomorulin/catenin, tight junction and desmosome adhesion systems as the trophectoderm differentiates. Each system reveals different mechanisms regulating molecular maturation. Adhesion processes contribute to the generation of distinct tissues in the blastocyst by modifying the expression pattern of blastomeres entering the non-epithelial inner cell mass lineage. Cell adhesion also influences the spatial organisation, but rarely the timing of expression, of proteins involved in trophectoderm differentiation. |
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