Document 0092 DOCN M9580092 TI Growth inhibition of Candida albicans hyphae by CD8+ lymphocytes. DT 9506 AU Beno DW; Stover AG; Mathews HL; Department of Microbiology and Immunology, Stritch School of; Medicine, Loyola University of Chicago, Maywood, IL 60153, USA. SO J Immunol. 1995 May 15;154(10):5273-81. Unique Identifier : AIDSLINE MED/95248093 AB We have shown previously that IL-2-activated splenocytes can inhibit the growth of Candida albicans hyphae in vitro. Herein we demonstrate that plastic nonadherent lymphocytes that are CD8+ mediate the antifungal activity. Enrichment for CD8+ cells markedly enhanced the antifungal activity of the IL-2-activated lymphocyte population for C. albicans and the cytotoxic activity of the lymphocytes for an NK-resistant cell line. Depletion of CD8+ cells reduced the lymphocyte population's antifungal activity and cytotoxic activity for the NK-resistant cell line. Enrichment for NK1.1+ cells markedly reduced the antifungal activity of the lymphocyte population for C. albicans and increased the cytotoxic activity of the lymphocytes for an NK-sensitive cell line. Depletion of NK1.1+ cells increased the lymphocyte population's antifungal activity and cytotoxic activity for the NK-resistant cell line. Generation of the antifungal lymphocytes in culture required IL-2 and was not replaced with IFN-gamma. These data show that IL-2-activated CD8+ T lymphocytes exert the greatest amount of antifungal effect against the hyphal form of C. albicans, whereas IL-2- or IFN-gamma-activated NK cells have little or no effect against the hyphae. DE Animal Candida albicans/CYTOLOGY/*GROWTH & DEVELOPMENT/*IMMUNOLOGY Complement/PHYSIOLOGY Cytotoxicity Tests, Immunologic CD8-Positive T-Lymphocytes/*IMMUNOLOGY Female Flow Cytometry Interleukin-2/PHARMACOLOGY Killer Cells, Natural/IMMUNOLOGY Mice Mice, Inbred C57BL Recombinant Proteins/PHARMACOLOGY Spleen/CYTOLOGY/DRUG EFFECTS Support, Non-U.S. Gov't Support, U.S. Gov't, P.H.S. Tumor Cells, Cultured JOURNAL ARTICLE SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).