Document 0037 DOCN M9460037 TI The nature of the autoimmune antibody repertoire in human immunodeficiency virus type 1 infection. DT 9408 AU Ditzel HJ; Barbas SM; Barbas CF 3rd; Burton DR; Department of Immunology, Scripps Research Institute, La Jolla,; CA 92037. SO Proc Natl Acad Sci U S A. 1994 Apr 26;91(9):3710-4. Unique Identifier : AIDSLINE GENBANK/U07196 AB Human immunodeficiency virus type 1 (HIV-1) seropositive donors typically have high serum antibody titers to a range of autoantigens, and the corresponding autoantibodies have been suggested to be of importance in the pathogenesis of HIV-1 infection. We have prepared 38 IgG human monoclonal autoantibodies from asymptomatic HIV-1 seropositive donors with elevated serum titers to autoantigens by construction of Fab combinatorial libraries on the surface of phage and affinity selection using a range of autoantigens, including double-stranded DNA, major histocompatibility complex class II, CD14, epidermal growth factor receptor, and ganglioside GD2. The autoantibodies are shown to be of moderate affinity and exhibit marked cross-reactivity with a range of antigens. This contrasts with the specific high-affinity antibodies selected (i) against infectious agents using the same libraries and (ii) against one of the autoantigens using a library from a donor with established autoimmune disease. The results lend no support to the presence of specific autoantibodies in HIV-1 infection and instead suggest attention should be focused on the pathological significance of high serum levels of antibodies capable of interacting with multiple molecular species. DE Amino Acid Sequence Antibody Specificity Autoantibodies/GENETICS/*IMMUNOLOGY Autoantigens/*IMMUNOLOGY Base Sequence Comparative Study DNA Primers/CHEMISTRY Gene Library Genes, Immunoglobulin Human HIV Infections/*IMMUNOLOGY Immunoglobulin Variable Region/GENETICS Immunoglobulins, Fab/METABOLISM Immunoglobulins, Heavy-Chain/GENETICS Male Molecular Sequence Data Sequence Alignment Sequence Homology, Amino Acid Support, Non-U.S. Gov't Support, U.S. Gov't, P.H.S. JOURNAL ARTICLE SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).