T Cell responses to recall antigens, alloantigen, and mitogen of HIV-infected patients receiving long-term combined antiretroviral therapy

V. Blazevic, N. Sahgal, H. A. Kessler, A. L. Landay, G. M. Shearer

Research output: Contribution to journalArticlepeer-review

Abstract

The effect of highly active antiretroviral therapy (HAART) on T cell responses in 30 HIV-infected patients was studied. Lymphocyte proliferation in response to influenza A virus, HIV-1 p24, gp160, allogeneic leukocytes, and mitogen, as well as influenza-specific cytotoxic T lymphocyte (CTL) responses, were measured. AIDS patients had decreased T cell-proliferative responses to influenza and alloantigen compared with asymptomatic patients. Absence of positive proliferative responses of HIV-infected patients to HIV-1 antigens was not associated with increased interleukin 10 production. Correlation was observed between influenza-specific CTL response and T cell proliferation, as well as CD4+ T lymphocyte counts, indicating the importance of CD4+ helper T cells for generating antiviral CTL responses. Finally, these results show that HAART-treated asymptomatic patients, but not AIDS patients, have T cell responses comparable to those of control individuals. It remains to be determined whether immune-based therapy will contribute any additional benefit to patients who received HAART.

Original languageEnglish (US)
Pages (from-to)1887-1893
Number of pages7
JournalAIDS Research and Human Retroviruses
Volume16
Issue number17
DOIs
StatePublished - Nov 20 2000
Externally publishedYes

ASJC Scopus subject areas

  • Immunology
  • Virology
  • Infectious Diseases

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