Tissue-associated cytokine expression in HIV-positive persons with oropharyngeal candidiasis

J Infect Dis. 2004 Aug 1;190(3):605-12. doi: 10.1086/422154. Epub 2004 Jun 25.

Abstract

Oropharyngeal candidiasis (OPC), caused by Candida albicans, is the most common infection in human immunodeficiency virus (HIV)-positive persons. Although CD4(+) T cells are considered to be important for host defense against C. albicans at the oral mucosa, a recent immunohistochemical evaluation of T cells in OPC lesions of HIV-positive persons with reduced CD4(+) T cells showed high numbers of CD8(+) T cells. The present study investigated tissue-associated expression of cytokine and chemokine mRNA at the site of infection. Results showed some effects of HIV (primarily increased chemokine mRNA levels) but little effect of blood CD4(+) T cells. In contrast, mRNA for several proinflammatory, T helper, and CD8(+) T cell-associated cytokines and chemokines were increased in subjects with OPC versus those without. These results support the presence of CD8(+) T cells in OPC lesions and suggest evidence for a response against OPC, despite reduced levels of CD4(+) T cells.

Publication types

  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • AIDS-Related Opportunistic Infections / immunology*
  • Antiretroviral Therapy, Highly Active
  • CD8-Positive T-Lymphocytes / immunology
  • Candida albicans / immunology
  • Candidiasis, Oral / immunology*
  • Candidiasis, Oral / microbiology
  • Cytokines / genetics
  • Cytokines / metabolism*
  • HIV Seropositivity / complications*
  • HIV Seropositivity / drug therapy
  • Humans
  • Oropharynx / immunology*
  • RNA, Messenger / genetics
  • RNA, Messenger / metabolism

Substances

  • Cytokines
  • RNA, Messenger