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Related Experiment Videos

The HIV cytopathic effect: potential target for therapy?

H J Bremermann1, R W Anderson

  • 1Department of Molecular and Cell Biology, University of California, Berkeley 94720.

Journal of Acquired Immune Deficiency Syndromes
|January 1, 1990
PubMed
Summary

The human immunodeficiency virus (HIV) may cause cell death through its rev regulatory protein, potentially targeting cellular genes involved in aging and T-cell maturation. Suppressing rev

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Area of Science:

  • Virology
  • Immunology
  • Computational Biology

Background:

  • Human immunodeficiency virus (HIV) infection leads to the destruction of CD4+ T cells.
  • The cytopathic effect of HIV, or cell-damaging capability, is a key factor in disease progression.

Purpose of the Study:

  • To investigate the hypothesis that a viral regulatory gene product actively causes the HIV cytopathic effect.
  • To identify the most likely viral protein responsible for HIV-induced cell death.

Main Methods:

  • Literature review of HIV regulatory genes.
  • Development of preliminary mathematical models of HIV dynamics at multiple levels.
  • Analysis of the functional sites of the HIV rev protein and its analogy to HTLV-I rex protein.

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Main Results:

  • The HIV rev regulatory protein is proposed as the primary candidate responsible for the cytopathic effect.
  • Rev protein's nuclear/nucleolar localization and mRNA export functions are identified.
  • A third functional site on rev is conjectured to be involved in inducing cellular senescence and apoptosis.

Conclusions:

  • The rev protein's interaction with cellular genes may induce senescence and cell death, contributing to HIV pathogenesis.
  • Mathematical and computer models of the immune system can explore therapeutic strategies targeting rev.
  • Suppression of rev's cytopathic action might restore immune function and prolong HIV latency.