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Cytotoxic T Cells from Human Immunodeficiency Virus Type 2-infected Patients Frequently Cross-react with Different Human Immunodeficiency Virus Type 1 Clades

Overview
Journal J Virol
Date 1998 Mar 14
PMID 9499105
Citations 18
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Abstract

Knowledge of immune mechanisms responsible for the cross-protection between highly divergent viruses such as human immunodeficiency virus type 1 (HIV-1) and HIV-2 may contribute to an understanding of whether virus variability may be overcome in the design of vaccine candidates which are broadly protective across the HIV subtypes. We demonstrate that despite the significant difference in virus amino acid sequence, the majority of HIV-2-infected individuals with different HLA molecules possess a dominant cytotoxic T-cell response which is able to recognize HIV-1 Gag protein. Furthermore, HLA-B5801-positive subjects show broad cross-recognition of HIV-1 subtypes since they mounted a T-cell response that tolerated extensive amino acid substitutions within HLA-B5801-restricted HIV-1 and HIV-2 epitopes. These results suggests that HLA-B5801-positive HIV-2-infected individuals have an enhanced ability to react with HIV-1 that could play a role in cross-protection.

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References
1.
Rowland-Jones S, Sutton J, Ariyoshi K, Dong T, Gotch F, McAdam S . HIV-specific cytotoxic T-cells in HIV-exposed but uninfected Gambian women. Nat Med. 1995; 1(1):59-64. DOI: 10.1038/nm0195-59. View

2.
Ariyoshi K, Cham F, Berry N, Jaffar S, Sabally S, Corrah T . HIV-2-specific cytotoxic T-lymphocyte activity is inversely related to proviral load. AIDS. 1995; 9(6):555-9. DOI: 10.1097/00002030-199506000-00004. View

3.
Gallimore A, Cranage M, Cook N, Almond N, Bootman J, Rud E . Early suppression of SIV replication by CD8+ nef-specific cytotoxic T cells in vaccinated macaques. Nat Med. 1995; 1(11):1167-73. DOI: 10.1038/nm1195-1167. View

4.
Maryanski J, Jongeneel C, Bucher P, Casanova J, Walker P . Single-cell PCR analysis of TCR repertoires selected by antigen in vivo: a high magnitude CD8 response is comprised of very few clones. Immunity. 1996; 4(1):47-55. DOI: 10.1016/s1074-7613(00)80297-6. View

5.
Kersh G, Allen P . Essential flexibility in the T-cell recognition of antigen. Nature. 1996; 380(6574):495-8. DOI: 10.1038/380495a0. View