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001-es BibID:BIBFORM035822
Első szerző:Kónya József (szakorvos, klinikai mikrobiológus)
Cím:Primary induction of human cytotoxic lymphocytes against a synthetic peptide of the human immunodeficiency virus type 1 protease / Kónya J., Stuber G., Björndal A., Fenyö E. M., Dillner J.
Dátum:1997
ISSN:0022-1317
Megjegyzések:Identification of in vitro immunogenic T-cell epitopes is important for the design of immunotherapeutics targeted to specific antigenic sites. To identify candidate cytotoxic T-lymphocyte (CTL) epitopes in the protease of human immunodeficiency virus type 1 (HIV-1) strain MN, we synthesized 9-mer and 10-mer peptides containing the HLA-A*0201 binding motif. Binding affinity of the peptides was measured by HLA-A*0201 up-regulation on T2 cells. Peptides with high binding-affinity were tested for their ability to stimulate primary CTLs from healthy HIV-negative blood donors. Peptide-specific CTLs were obtained from five out of six donors by stimulation with a 9-mer (LVGPTPVNI) or a 10-mer (VLVGPTPVNI) peptide derived from a highly conserved amino acid stretch in the C-terminal region of the protease. Addition of peptide-specific CTLs to acutely HIV-infected lymphocytes resulted in inhibition of p24gag production. In conclusion, a highly conserved HIV protease peptide regularly elicits peptide-specific CTLs. Targeting immune responses against defined epitopes in non-variable regions may be a feasible way to minimize the risk of virus escape from immune surveillance.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:Journal Of General Virology. - 78 : Pt9 (1997), p. 2217-2224. -
További szerzők:Stuber György Björndal A. Fenyö E. M. Dillner, Joakim
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