China
Research Article
Differential Potency and Breadth of the Same Epitope-Specific CTLs to Inhibit HIV-1 Replication based on TCR Usage
Author(s): Ting Tu, Xiaohe Zhou, Tao Li, Cong Jin and Huabiao ChenTing Tu, Xiaohe Zhou, Tao Li, Cong Jin and Huabiao Chen
Increasing evidence suggests that the immune control of viral replication by HIV-1-specific cytotoxic T lymphocytes (CTLs) is relevant to the selection of human leukocyte antigen (HLA) allele-restricted antigen-specific CTL repertoire. But the underlying factors accounting for CTL functional difference from T cell receptor (TCR) clonal diversity are currently unclear. Here we found that CTL repertoire specific for HLA-B*27-restricted HIV-1 Gag p24 epitope KK10 (KRWIILGLNK, residues 263-272) selected multiple TCR clonotypes. By dissection of the bulk KK10-specific CTL compartment, differential potency and breadth of KK10-specific CTL clones to inhibit HIV-1 replication was defined due to the distinct TCR usage. Superior control of viral replication of wild-type HIV-1 isolates was observed by the TCR-clonotypic CTLs characteristic of higher ability to produce MIP-1β. A unique TCR-e.. Read More»
DOI:
10.4172/2155-6113.1000735
Journal of AIDS & Clinical Research received 5061 citations as per Google Scholar report