Cell wall proteinaceous components in isolates of Candida albicans and non-albicans species from HIV-infected patients with oropharyngeal candidiasis

Jose Luis López-Ribot, William Richard Kirkpatrick, Robert Kaufman McAtee, Sanjay Gopal Revankar, Thomas Frost Patterson

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Oropharyngeal candidiasis (OPC) remains a common opportunistic infection in HIV-infected patients. Candida albicans is the most frequent causative agent of OPC. However, non-albicans spp. are being increasingly isolated. Candidal cell wall proteins and mannoproteins play important rales in the biology and pathogenesis of candidiasis. In the present study, we have analyzed the proteinaceous components associated with cell wall extracts from C. albicans, Candida tropicalis, Candida pseudotropicalis, Candida krusei. Candida glabrata, Candida parapsilosis, Candida guilliermondii and Candida rugosa obtained from HIV-infected patients with recurrent OPC. Cell wall proteinaceous components were extracted with β-mercaptoethanol and analyzed using electrophoresis, immunoblotting (with antisera generated against C. albicans cell wall components, and with serum samples and oral saline rinses from patients with OPC), and lectin-blotting (concanavalin A) techniques. Numerous molecular species were splubilized from the various isolates. Major qualitative and quantitative differences in the polypeptidic and antigenic profiles associated with the cell wall extracts from the different Candida spp. were discernible. Some of the antibody preparations generated against C. albicans cell wall components were able to recognize homologous materials present in the extracts from non-albicans spp. Information on cell wall antigens of Candida species may be important in the therapy and prevention of HIV-related OPC.

Original languageEnglish (US)
Pages (from-to)125-130
Number of pages6
JournalRevista Iberoamericana de Micologia
Volume15
Issue number3
StatePublished - Dec 1 1998

Keywords

  • Antigenic composition
  • Candida species
  • Cell wall proteins
  • Oropharyngeal candidiasis

ASJC Scopus subject areas

  • Microbiology
  • Infectious Diseases

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