Zhou HC, Xu DZ, Wang XP, Zhang JX, Huang Y, Yan YP, Zhu Y, Jin BQ. Identification of the epitopes on HCV core protein recognized by HLA-A2 restricted cytotoxic T lymphocytes.
World J Gastroenterol 2001;
7:583-6. [PMID:
11819836 PMCID:
PMC4688680 DOI:
10.3748/wjg.v7.i4.583]
[Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2001] [Revised: 03/05/2001] [Accepted: 03/12/2001] [Indexed: 02/06/2023] Open
Abstract
AIM
To identify hepatitis C virus(HCV) core protein epitopes recognized by HLA-A2 restricted cytotoxic T lymphocyte (CTL).
METHODS
Utilizing the method of computer prediction followed by a 4h(51)Cr release assay confirmation.
RESULTS
The results showed that peripheral blood mononuclear cells (PBMC) obtained from two HLA-A2 positive donors who were infected with HCV could lyse autologous target cells labeled with peptide "ALAHGVRAL (core 150-158)". The rates of specific lysis of the cells from the two donors were 37.5% and 15.8%, respectively. Blocking of the CTL response with anti-CD4 mAb caused no significant decrease of the specific lysis. But blocking of CTL response with anti-CD8 mAb could abolish the lysis.
CONCLUSION
The peptide (core 150-158) is the candidate epitope recognized by HLAA2 restricted CTL.
Collapse