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1996-02-26
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Document 0599
DOCN M9620599
TI Reduced CD21 (CR2) and CD54 (ICAM-1) expression in MT2 cells with HIV-1
or HIV-2 strains.
DT 9602
AU Larcher C; Julen N; Prodinger WM; Totsch M; Gurtler L; Dierich MP;
Institut fur Hygiene, Universitat Innsbruck, Austria.
SO Immunol Lett. 1995 May;46(1-2):31-6. Unique Identifier : AIDSLINE
MED/96078150
AB Alterations in the expression of cell-surface receptors have been
reported in HIV-infected cells for CD4, CD25 (IL-2 receptor), CD2, CD3
and CD8 and CD26. In the present study we provide evidence that CD21 is
down-regulated in the human T-lymphoblastoid cell line MT2 after
infection with HIV-1 and -2 isolates. The same effect was observed with
ICAM-1 (CD54). CD21 expression was monitored by means of fluorescence
intensity, its functional ability to bind to C3d and by quantitative
measurement of CD21-antigen in supernatants and cell lysates using an
immunoassay. In addition, the decrease of CD21 and ICAM-1-specific mRNA
suggests a mechanism at a transcriptional level. Our data suggest that
HIV might have a direct influence on the receptor expression.
DE Cell Line, Transformed Down-Regulation (Physiology)/*IMMUNOLOGY Human
HIV-1/*IMMUNOLOGY HIV-2/*IMMUNOLOGY Intercellular Adhesion
Molecule-1/GENETICS/*METABOLISM Receptors, Complement
3d/GENETICS/*METABOLISM RNA, Messenger/ANALYSIS Support, Non-U.S.
Gov't T-Lymphocytes/*IMMUNOLOGY/VIROLOGY JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).