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Related Experiment Videos

[How do protein-glycan interactions regulate T-cell physiology?].

Marta A Toscano1, Juan M Ilarregui, Germán A Bianco

  • 1Division Inmunogenética, Hospital de Clínicas José de San Martín, Facultad de Medicina, Universidad de Buenos Aires, Argentina.

Medicina
|September 19, 2006
PubMed
Summary

Protein-glycan interactions are crucial for T-cell responses, influencing maturation, activation, migration, and apoptosis. These interactions, mediated by cell surface glycans and lectins, regulate key immunological processes.

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Area of Science:

  • Immunology
  • Glycobiology
  • Cell Biology

Context:

  • T-cell responses involve complex physiological events like maturation, activation, migration, and apoptosis.
  • Cell surface glycoproteins decorated with glycans play a significant role in modulating T-cell physiology.
  • Endogenous lectins, such as selectins and galectins, recognize specific glycan structures on T-cells.

Purpose:

  • To review the mechanisms by which protein-carbohydrate interactions modulate immunological processes.
  • To highlight the role of glycans and lectins in T-cell surface glycoprotein interactions.
  • To explain how these interactions influence T-cell signaling pathways.

Summary:

  • Protein-glycan interactions are critical for T-cell physiology, affecting thymocyte maturation, T-cell activation, lymphocyte migration, and T-cell apoptosis.

Related Experiment Videos

  • Glycans on T-cell surface glycoproteins interact with endogenous lectins (selectins, galectins) to modulate T-cell function.
  • Regulation occurs via lectin expression and the activity of glycosyltransferases/glycosidases, controlling glycan structures and influencing T-cell signaling, proliferation, and apoptosis.

    • Impact:

    • Understanding these interactions provides insights into T-cell-mediated immunity.
    • This knowledge can inform strategies for modulating T-cell responses in various diseases.
    • Highlights the importance of glycobiology in immune system regulation.