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Cell surface carbohydrates and lectins in early development

F Poirier1, S Kimber

  • 1ICGM, Unité INSERM 257, Paris, France.

Molecular Human Reproduction
|December 12, 1997
PubMed
Summary

Cell surface carbohydrates and lectins are crucial for mammalian embryo development and implantation. Research highlights their role in cell interactions, particularly fucosylated structures, during early embryonic stages.

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Area of Science:

  • Developmental Biology
  • Glycobiology
  • Reproductive Biology

Background:

  • Cell surface carbohydrates and lectins are increasingly recognized for their roles in mammalian embryonic development.
  • Understanding these molecules is key to deciphering cell-cell interactions during pre- and peri-implantation stages.

Purpose of the Study:

  • To summarize current knowledge on the developmental regulation of cell surface carbohydrates and lectins in mammalian embryos.
  • To highlight the role of specific carbohydrate structures and lectins in early embryonic implantation.

Main Methods:

  • Review of existing literature focusing on mouse and human embryo studies.
  • Analysis of functional data regarding carbohydrate structures and lectin expression.
  • Examination of findings from genetically modified mouse models lacking specific glycosylation enzymes or lectins.

Main Results:

  • Carbohydrates play a critical role in cell-cell interactions of the pre- and peri-implantation embryo.
  • Terminal fucosylated Galbeta1-3/4GlcNAc structures are implicated in early implantation steps.
  • Lectins are expressed in the trophectoderm preceding implantation.

Conclusions:

  • Cell surface glycans and lectins are vital regulators of mammalian embryonic development and implantation.
  • Further research is needed to fully elucidate the function of these molecules in the very early embryo, as current mouse models have limitations.

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