Molecular Human Reproduction, Vol 3, 907-918, Copyright © 1997 by Oxford University Press
F Poirier and S Kimber
Current knowledge on the development regulation of cell surface
carbohydrates and lectins in mammalian embryos is summarized. Much of this
data comes from observations on mouse embryos but information on the human
embryo is included where it is available. Over the last few years, numerous
studies have indicated that carbohydrates play a critical role in the
cell-cell interactions of the pre- and peri- implantation embryo.
Functional tests suggest a role for terminal fucosylated Galbeta1-3/4GlcNAc
structures in the early steps of implantation. We also now have clear
evidence for the expression of lectins in the trophectoderm just prior to
implantation. Mouse mutants have been generated which lack particular
enzymes involved in glycosylation or particular lectins, but so far they
have not been informative about the role of glycoconjugates or lectins in
the very early embryo.
REVIEW, TUTORIAL
Cell surface carbohydrates and lectins in early development
ICGM, Unite INSERM 257, Paris, France.
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