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Related Experiment Videos

Glycans and the modulation of neural-recognition molecule function

M Schachner1, R Martini

  • 1Dept of Neurobiology, Swiss Federal Institute of Technology, Hönggerberg, Zürich.

Trends in Neurosciences
|April 1, 1995
PubMed
Summary

Neural-recognition molecules, like glycoproteins and glycolipids, regulate cell interactions. Their specific carbohydrate structures are crucial for cell communication and nerve repair.

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Area of Science:

  • Neuroscience
  • Molecular Biology
  • Glycobiology

Background:

  • Cell surface and extracellular matrix molecules mediate cell interactions.
  • Carbohydrate structures on these molecules are critical for their function.
  • Neural recognition molecules play roles in development, synaptic plasticity, and nerve regeneration.

Purpose of the Study:

  • To summarize the role of neural recognition molecules in cellular processes.
  • To highlight the importance of specific carbohydrate structures in neural recognition.
  • To explain the mechanisms of cell interaction mediated by these molecules.

Main Methods:

  • Review of literature on neural recognition molecules.
  • Analysis of the structure-function relationship of identified carbohydrates.

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  • Examination of cis- and trans-interaction mechanisms.

    • Main Results:

    • Neural recognition molecules are diverse (glycoproteins, glycolipids, proteoglycans).
    • Specific carbohydrates like polysialic acid and sulfated glucuronic acid are key.
    • Both cell-cell (trans) and within-cell (cis) interactions are important for signal transduction.

    Conclusions:

    • The precise expression of carbohydrates on neural recognition molecules is finely tuned for specific functions.
    • These molecules are essential for regulating cell interactions throughout neural development and repair.
    • Complex formation through cis- and trans-interactions influences intracellular signaling pathways.