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Cellular sialoglycoconjugates: a histochemical perspective

J Roth1

  • 1Department of Pathology, University of Zürich, Switzerland.

The Histochemical Journal
|October 1, 1993
PubMed
Summary
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Sialic acids, crucial for cell communication, show specific expression patterns during development and in different organs like the intestine and kidney. Their altered presence is also linked to tumor development.

Area of Science:

  • Glycobiology and Molecular Cell Biology
  • Developmental Biology and Cancer Research

Background:

  • Sialic acids are terminal sugars on glycoproteins and glycolipids, vital for cellular interactions.
  • Their expression is tightly controlled during development, organogenesis, and cell differentiation.
  • Sialyltransferases regulate the specific patterns of sialylation, leading to organ- and cell-type specificity.

Purpose of the Study:

  • To review the expression patterns of sialoglycoconjugates.
  • To highlight developmentally regulated and tissue-specific expression.
  • To examine the association of sialoglycoconjugates with tumor development, focusing on intestine and kidney.

Main Methods:

  • Histochemical investigations utilizing specific lectins and monoclonal antibodies.

Related Experiment Videos

  • Analysis of cellular and subcellular aspects of sialylation.
  • Review of existing literature on sialic acid expression and function.

    • Main Results:

    • Sialic acid expression is dynamically regulated during development and differentiation.
    • Distinct sialylated glycosylation patterns are observed in a cell-type and organ-specific manner.
    • Aberrant expression of sialoglycoconjugates is frequently associated with tumors, particularly in the intestine and kidney.

    Conclusions:

    • Sialic acids play critical roles in development and cell recognition.
    • Understanding their specific expression is key to deciphering biological processes.
    • Tumor-associated sialylation patterns offer potential diagnostic and therapeutic targets.