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Nitric oxide modulates HIV-1 replication.

J B Mannick1, J S Stamler, E Teng

  • 1Department of Adult Oncology, Dana Farber Cancer Institute, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts 02115, USA. Joan_Mannick@dfci.harvard.edu

Journal of Acquired Immune Deficiency Syndromes (1999)
|October 26, 1999
PubMed
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Nitric oxide (NO) donors inhibit HIV-1 replication in acute infections and stimulate reactivation in latent infections. These findings suggest NO

Area of Science:

  • Virology
  • Immunology
  • Biochemistry

Background:

  • Nitric oxide (NO) levels are elevated in HIV-1 patients.
  • NO inhibits replication of various viruses.
  • The effect of NO on HIV-1 replication is largely unknown.

Purpose of the Study:

  • To investigate the effects of NO on HIV-1 replication in different cellular models.
  • To explore the potential therapeutic applications of NO donor compounds in HIV-1 treatment.

Main Methods:

  • Using S-nitrosothiols (RSNOs) as NO donor compounds.
  • Testing RSNOs in acutely infected human peripheral blood mononuclear cells (PBMCs).
  • Investigating NO's effect on the latent HIV-1 U1 cell line.

Main Results:

Related Experiment Videos

  • RSNOs inhibited HIV-1 replication in acutely infected PBMCs post-reverse transcription.
  • RSNOs showed additive effects with AZT.
  • NO donors stimulated HIV-1 reactivation in the U1 cell line via a cGMP-independent pathway.

Conclusions:

  • NO exhibits dual effects on HIV-1: inhibition in acute infection and reactivation in chronic/latent infection.
  • NO may play a physiological role in HIV-1 replication.
  • NO donor compounds, with a history of safe use, may offer novel therapeutic strategies for HIV-1.