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Lymphocyte-endothelial interactions and tolerance induction

C G Orosz1

  • 1Ohio State University College of Medicine, Department of Surgery, Columbus.

Clinical Transplantation
|April 1, 1994
PubMed
Summary
This summary is machine-generated.

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Monoclonal antibodies targeting intracellular adhesion molecules can improve transplant survival and promote tolerance by affecting lymphocyte movement and function. These findings highlight their role in immune interactions crucial for transplantation.

Area of Science:

  • Immunology
  • Transplantation Biology
  • Cell Adhesion

Background:

  • Intracellular adhesion molecules (ICAMs) regulate immune cell trafficking and activation.
  • Vascular endothelial cells control lymphocyte movement via adhesion molecules.
  • Endothelial cells act as antigen-presenting cells (APCs) influencing T cell responses.

Purpose of the Study:

  • To investigate the role of anti-adhesion molecule monoclonal antibodies (mAbs) in allograft survival and tolerance.
  • To test the hypothesis that impaired lymphocyte trafficking by mAbs enhances allograft survival.
  • To test the hypothesis that impaired APC function by mAbs promotes allograft survival and tolerance.

Main Methods:

  • Utilized rodent transplant models.
  • Administered monoclonal antibodies (mAbs) targeting intracellular adhesion molecules.

Related Experiment Videos

  • Assessed allograft survival and allogeneic tolerance induction.

    • Main Results:

    • Monoclonal antibodies targeting intracellular adhesion molecules promoted allograft survival in rodent models.
    • These antibodies also stimulated allogeneic tolerance.
    • Evidence suggests ICAMs are critical for both graft rejection and tolerance induction.

    Conclusions:

    • Intracellular adhesion molecules are key players in immune responses to allografts.
    • Targeting ICAMs with mAbs offers a potential strategy for improving transplant outcomes.
    • ICAMs mediate crucial interactions between lymphocytes and endothelial cells/APCs, influencing tolerance.