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- Document 0397
- DOCN M9620397
- TI Functional epitope analysis of the human CD4 molecule: antibodies that
- inhibit human immunodeficiency virus type 1 gene expression bind to the
- immunoglobulin CDR3-like region of CD4.
- DT 9602
- AU Benkirane M; Hirn M; Carriere D; Devaux C; Laboratoire d'Immunologie des
- Infections Retrovirales, Centre; National de la Recherche Scientifique
- UPR 9008-Institut National; de la Sante et de la Recherche Medicale
- U249, Montpellier,; France.
- SO J Virol. 1995 Nov;69(11):6898-903. Unique Identifier : AIDSLINE
- MED/96013789
- AB We recently demonstrated that monoclonal antibody (MAb) 13B8-2, specific
- for the immunoglobulin (Ig) complementary determining region 3
- (CDR3)-like region of the CD4 molecule, inhibits viral transcription in
- human immunodeficiency virus (HIV)-infected CEM cells and HIV type 1
- (HIV-1) promoter activity. Here, we have studied the capacity of several
- MAb specific for the D1 domain of CD4, including anti-CDR2-like (Leu-3a
- and ST4) and anti-CDR3-like (13B8-2 and ST40) MAb, and for the D2 domain
- of CD4 (BL4) to inhibit both provirus transcription in HIV-1LAI-infected
- CEM cells and transcription of the chloramphenicol acetyltransferase
- (CAT) gene under control of the HIV-1 long terminal repeat in
- transiently transfected CEM cells. We found that HIV-1 promoter activity
- and provirus transcription are inhibited only by MAb that bind to the
- CDR3-like region in domain 1 of CD4. Moreover, we demonstrated that the
- Fab fragment of an anti-CDR3-like region-specific anti-CD4 MAb is a
- powerful inhibitor of HIV-1 promoter activity. These results have
- implications for understanding the role of the CDR3-like region in CD4
- T-cell signaling, which controls provirus transcription.
- DE Antibodies, Monoclonal/IMMUNOLOGY/*PHARMACOLOGY Antigens,
- CD4/*IMMUNOLOGY/PHYSIOLOGY Binding Sites Cell Line Chloramphenicol
- Acetyltransferase/BIOSYNTHESIS Epitopes/*ANALYSIS *Gene Expression
- Human *HIV Long Terminal Repeat HIV-1/*GENETICS/*IMMUNOLOGY
- Polymerase Chain Reaction Receptor-CD3 Complex, Antigen,
- T-Cell/*IMMUNOLOGY/PHYSIOLOGY Recombinant Proteins/BIOSYNTHESIS RNA
- Splicing RNA, Viral/BIOSYNTHESIS Support, Non-U.S. Gov't Transfection
- JOURNAL ARTICLE
-
- SOURCE: National Library of Medicine. NOTICE: This material may be
- protected by Copyright Law (Title 17, U.S.Code).
-
-