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M94A3155.TXT
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1994-10-25
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Document 3155
DOCN M94A3155
TI Lipids of Mycoplasma fermentans have an activity of HIV induction.
DT 9412
AU Matsuda K; Sanuma K; Taki T; Handa S; Yamamoto N; Harasawa R; Tokyo Med.
and Dent. Univ., Japan.
SO Int Conf AIDS. 1994 Aug 7-12;10(1):140 (abstract no. PA0180). Unique
Identifier : AIDSLINE ICA10/94369420
AB OBJECTIVE: Mycoplasma fermentans is suspected as a cofactor of AIDS, but
the mechanism of pathogenesis is not well known. We purified and
characterized novel phosphorylcholine-containing glycoglycerolipid from
HIV- and HTLV-I-infected human helper T-cell culture, and the lipids
were found to be from accidentally infected Mycoplasma fermentans. To
elucidate the role of the lipids, the activity of HIV induction from
latently HIV-infected macrophage cells was studied. METHODS: A strain of
mycoplasma was isolated from HIV- and HTLV-I-infected human helper
T-cell line. Lipids extracted from the Mycoplasma fermentans and various
mycoplasma species were added to latently HIV-infected macrophage cells
(J22HL60). The expression of HIV antigens was analyzed by
immunofluorescence flow cytometer using anti-HIV serum, and ELISA for
the detection of p24 gag protein of HIV. RESULTS: We found an novel
phosphorylcholine-containing glycoglycerolipid in the mycoplasma from
human helper T-cell culture, and determined the structure of it. We
could isolate one species of mycoplasma and identified it as Mycoplasma
fermentans. The lipid fraction of the Mycolasma fermentans (named
GGPLstrain) showed activity to induce HIV-antigen in J22HL60 cells, but
lipid fractions from the other mycoplasma species did not. DISCUSSION
AND CONCLUSIONS: Our data suggest a possible involvement of Mycolasma
fermentans in AIDS pathogenesis. Since the novel lipid was specifically
detected in Mycoplasma fermentans species, the lipid seems to be
involved in the mechanism of HIV induction.
DE Cell Line Enzyme-Linked Immunosorbent Assay Flow Cytometry/METHODS
Fluorescent Antibody Technique Glycolipids/ISOLATION &
PURIF/PHARMACOLOGY/*PHYSIOLOGY Human HIV/DRUG EFFECTS/*PHYSIOLOGY HIV
Antigens/BIOSYNTHESIS HIV Core Protein p24/ANALYSIS/BIOSYNTHESIS
HTLV-I/DRUG EFFECTS/*PHYSIOLOGY Macrophages Mycoplasma
fermentans/ISOLATION & PURIF/*PHYSIOLOGY Phosphorylcholine/ISOLATION &
PURIF/*METABOLISM/PHARMACOLOGY T-Lymphocytes,
Helper-Inducer/*MICROBIOLOGY MEETING ABSTRACT
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).