Antibodies to MHC Class II Peptides are Present in HIV-1-Positive Sera.

Autor: Zaitseva, M. B., Moshnikov, S. A., Kozhich, A. T., Frolova, H. A., Makarova, O. D., Pavlikov, S. P., Sidorovich, I. G., Brondz, B. B.
Předmět:
Zdroj: Scandinavian Journal of Immunology; Mar1992, Vol. 35 Issue 3, p267-273, 7p
Abstrakt: Seventy-five per cent of sera from HIV-I-infected individuals bind to the human 9-lymphoma cells bearing the major histocompatibility class II molecule in enzyme-linked immunosorbent assay (ELISA). The binding is caused by the antibodies against the class 11 molecule present in the serum samples which prevent the interaction of murine anti-HLA.DR monoclonal antibody with B lymphoma in FACS analysis. The three highly conserved amino acid sequences in α- and β- chains of the class 11 molecule and three homologous fragments in HIV-1 gp120 and gp41 were identified by computer search and synthesized. Using these peptides it was demonstrated that 28-48% of HIV-positive sera contain antibodies that cross-react with the peptide of HlV-1 origin and with the peptide from the class II molecule as well. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index