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Related Experiment Videos

Lymphocyte traffic control by chemokines.

B Moser1, P Loetscher

  • 1Theodor-Kocher Institute, University of Bern, CH-3000 Bern 9, Switzerland. bernhard.moser@tki.unibe.ch

Nature Immunology
|March 29, 2001
PubMed
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Lymphocyte migration is regulated by specific chemokines, not just during inflammation but also for resting cells. This chemokine system ensures proper immune cell traffic, crucial for preventing inflammatory diseases.

Area of Science:

  • Immunology
  • Cell Biology
  • Molecular Biology

Background:

  • Historically, lymphocytes were considered less responsive to chemokines compared to phagocytes and monocytes.
  • Recent findings reveal that peripheral blood T cells require activation for inflammatory chemokine responses.
  • Resting T cells in circulation are not targeted by inflammatory chemokines.

Purpose of the Study:

  • To summarize current understanding of chemokine-mediated lymphocyte traffic.
  • To focus on molecular mechanisms modulating T cell responses to chemokines.
  • To highlight the role of distinct chemokines in lymphocyte migration throughout their life cycle.

Main Methods:

  • Review of existing literature on chemokine function and lymphocyte migration.
  • Analysis of molecular mechanisms governing T cell chemokine responses.

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  • Hypothesis formulation based on recent developmental findings.

    • Main Results:

    • Discovery of chemokines that selectively target resting lymphocytes (T and B cells).
    • Identification of inflammation-unrelated chemokines influencing lymphocyte migration in various tissues.
    • Evidence suggests distinct chemokine sets and receptors fine-tune lymphocyte migration during different life stages.

    Conclusions:

    • The chemokine system precisely controls lymphocyte traffic during immune responses.
    • Developmentally regulated chemokine receptors dictate lymphocyte migration patterns.
    • Disruptions in the chemokine system can precipitate inflammatory diseases.