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Related Experiment Videos

CD30 expression identifies a functional alloreactive human T-lymphocyte subset

O M Martinez1, J Villanueva, S Abtahi

  • 1Department of Surgery, Stanford University School of Medicine, California, USA.

Transplantation
|May 29, 1998
PubMed
Summary
This summary is machine-generated.

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CD30+ T lymphocytes, crucial for immune responses to alloantigen, produce key cytokines like interferon-gamma and interleukin-5. These cells play a significant role in allograft rejection, with cyclosporine partially affecting their development and cytokine production.

Area of Science:

  • Immunology
  • Cell Biology

Background:

  • CD30 is a receptor in the tumor necrosis factor/nerve growth factor family.
  • CD30 is proposed as a marker for specific cytokine-producing T cell subsets.
  • Previous studies explored CD30 expression on T helper cells and CD30+ cell function post-stimulation.

Purpose of the Study:

  • To investigate the development and function of CD30+ T cells generated in response to alloantigen.
  • To analyze the cytokine profiles of alloactivated CD30+ T cells.
  • To determine the effect of cyclosporine on CD30+ T cell development and cytokine production.

Main Methods:

  • Mixed lymphocyte reactions (MLRs) were used to generate T cells.
  • Immunofluorescence and flow cytometry assessed CD30 expression on T lymphocytes.

Related Experiment Videos

  • Fluorescence-activated cell sorting (FACS) analyzed cytokine production by CD30+ cells after restimulation.
  • The impact of cyclosporine on CD30+ cell development and cytokine output was evaluated.

    • Main Results:

    • CD30+ T lymphocytes emerged by day 2 and increased through day 6 in MLRs.
    • Both CD4+ and CD8+ T cells expressed CD30 following alloantigenic stimulation.
    • CD30+ T cells were identified as major producers of interferon-gamma and interleukin-5 in response to alloantigen.
    • Cyclosporine partially inhibited CD30+ cell development and preferentially reduced interferon-gamma over interleukin-5 production.

    Conclusions:

    • CD30+ T lymphocytes represent a significant immunoregulatory subset in human allograft rejection.
    • Understanding CD30+ T cell dynamics is crucial for managing allograft responses.