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Related Experiment Videos

Role for CD30 in HIV expression

S Romagnani1, F Annunziato, R Manetti

  • 1Institute of Internal Medicine and Immunoallergology, University of Florence, Italy.

Immunology Letters
|June 1, 1996
PubMed
Summary
This summary is machine-generated.

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Human immunodeficiency virus (HIV) infection increases CD30 expression on T cells, leading to cell death. CD30 signaling also enhances HIV replication, suggesting a role in disease progression.

Area of Science:

  • Immunology
  • Virology
  • Cell Biology

Background:

  • CD30 is a receptor on immune cells, with its ligand CD30L found on B cells, macrophages, and T cells.
  • Human immunodeficiency virus (HIV) infects CD4+ T cells, leading to immune deficiency.

Purpose of the Study:

  • To investigate the role of CD30 and its ligand CD30L in HIV infection.
  • To determine if CD30 signaling affects HIV replication and T-cell survival.

Main Methods:

  • In vitro infection of CD4+ T-cell clones with HIV.
  • Cross-linking CD30 with monoclonal antibodies.
  • Assessing HIV replication in T-cell lines and patient lymph node cells.
  • Using anti-CD30L antibodies to inhibit CD30L-mediated effects.

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Main Results:

  • HIV infection enhanced CD30 expression on CD4+ T cells, preceding cell death.
  • CD30 cross-linking potentiated HIV replication in T-cell lines.
  • CD30L-expressing CD8+ T cells enhanced HIV replication in CD4+ T cells, an effect blocked by anti-CD30L antibodies.
  • Anti-CD30L antibodies suppressed spontaneous HIV replication in patient lymph node cells.

Conclusions:

  • CD30 triggering plays a significant role in enhancing HIV replication.
  • CD30 signaling may contribute to the death of HIV-infected CD4+ T cells.
  • Targeting the CD30 pathway could be a potential therapeutic strategy for HIV.