Document 0219 DOCN M9440219 TI Induction of IL-1 beta, IL-6, TNF-alpha, GM-CSF and G-CSF in human macrophages by smooth transparent and smooth opaque colonial variants of Mycobacterium avium. DT 9404 AU Fattorini L; Xiao Y; Li B; Santoro C; Ippoliti F; Orefici G; Laboratory of Bacteriology and Medical Mycology, Istituto; Superiore di Sanita, Rome, Italy. SO J Med Microbiol. 1994 Feb;40(2):129-33. Unique Identifier : AIDSLINE MED/94149666 AB Both smooth transparent (SmT) and smooth domed-opaque (SmD) colonial variants were obtained from a strain of Mycobacterium avium isolated from a patient with AIDS. The two variants showed similar biochemical characteristics but SmT bacteria proliferated better than SmD bacteria inside human macrophages and were much less capable than the SmD variant of inducing the release of IL-1 beta, IL-6, TNF-alpha, GM-CSF and G-CSF, after incubation for either 3 or 6 days. As cytokines are important extracellular signals for immune cells, the lack of induction observed in SmT-infected macrophages may be one of the pathogenic mechanisms of M. avium. DE AIDS-Related Opportunistic Infections/MICROBIOLOGY Cells, Cultured Culture Media Cytokines/*BIOSYNTHESIS Granulocyte Colony-Stimulating Factor/BIOSYNTHESIS Granulocyte-Macrophage Colony-Stimulating Factor/BIOSYNTHESIS Human Interleukin-1/BIOSYNTHESIS Interleukin-6/BIOSYNTHESIS Macrophages/IMMUNOLOGY/*MICROBIOLOGY Monocytes/IMMUNOLOGY/MICROBIOLOGY Mycobacterium avium Complex/GROWTH & DEVELOPMENT/*IMMUNOLOGY Mycobacterium avium-intracellulare Infection/MICROBIOLOGY Peptide Fragments/BIOSYNTHESIS Support, Non-U.S. Gov't Tumor Necrosis Factor/BIOSYNTHESIS JOURNAL ARTICLE SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).