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Related Experiment Videos

Dynamics of cell surface molecules during T cell recognition.

Mark M Davis1, Michelle Krogsgaard, Johannes B Huppa

  • 1Howard Hughes Medical Institute and the Department of Microbiology and Immunology, Stanford University, Stanford, California 94305-5323, USA. mdavis@cmgm.stanford.edu

Annual Review of Biochemistry
|October 7, 2003
PubMed
Summary

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T lymphocytes scan cell surfaces to recognize foreign antigens, a key part of vertebrate immunity. This process involves intricate molecular interactions crucial for immune responses and understanding cell-to-cell communication.

Area of Science:

  • Immunology
  • Cell Biology
  • Molecular Biology

Background:

  • T lymphocyte recognition of foreign antigens is vital for vertebrate immunity.
  • This process is essential for clearing pathogens and producing high-affinity antibodies.
  • T cells systematically scan cell surfaces using numerous antigen receptors.

Purpose of the Study:

  • To elucidate the mechanisms of T cell recognition of foreign antigens.
  • To understand the sequence of molecular events during T cell antigen recognition.
  • To explore potential applications of these findings in other cell interaction systems.

Main Methods:

  • Observation of T cell surface scanning and antigen receptor interactions.
  • Analysis of molecular rearrangements upon detection of antigen-MHC complexes.

Related Experiment Videos

  • Development of techniques to study transient cell-cell interactions.

    • Main Results:

    • Identified the systematic scanning mechanism of T cells for antigen recognition.
    • Described the molecular cascade triggered by the binding of antigenic peptide-MHC complexes.
    • Demonstrated the critical role of cell-surface and internal rearrangements in T cell activation.

    Conclusions:

    • T cell recognition involves a precise molecular dialogue crucial for immune surveillance.
    • Understanding these events enhances knowledge of immune responses and pathogen clearance.
    • The methodologies developed may be applicable to studying other transient cell-cell interactions.