Conserved CTL epitopes shared between HIV-infected human long-term survivors and chimpanzees.
Conserved CTL epitopes shared between HIV-infected human long-term survivors and chimpanzees.
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HIV 感染的人类长期幸存者和黑猩猩之间共有保守的 CTL 表位。
DOI:
10.4049/jimmunol.162.4.2308
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发表时间:
1999
影响因子:
4.4
通讯作者:
Jonathan L. Heeney
中科院分区:
文献类型:
--
作者:
S. Balla;Gerrit Koopman;P. Mooij;T. Haaksma;V. Teeuwsen;Ronald E. Bontrop;Jonathan L. Heeney
Certain HIV-1 infected humans that do not progress to AIDS have been documented to share particular MHC class I alleles that appear to correlate with long-term survival. HIV-1-infected chimpanzees are relatively resistant to progression to AIDS. Out of a group of 10 chimpanzees with CTL activity and nonprogressive HIV-1 infection, 2 animals with prominent cytolytic CD3+CD8+ T cell responses to HIV-1 Ags were studied in detail. Characterization of these CTL revealed that they contained the granzymes A and B, T cell intracellular Ag-1, and perforin and induced calcium-dependent cytolysis that correlated with the presence of apoptotic nuclei in target cells. These CTL responses were directed against two gagpeptides, which were found to be identical to previously described epitopes recognized in the context of HLA-B27 and HLA-B57 molecules. The latter two restriction elements occur with increased frequency in human long-term survivor cohorts. Phylogenetic comparisons revealed that the chimpanzee restriction elements, Patr-B*02and -B*03, described here do not show any obvious similarity with the HLA-B*27 and -B*57 alleles, suggesting that CTL responses to HIV-1 in distinct primate species may be controlled by different types of HLA-B-like molecules. The CTL responses in these two chimpanzees are directed, however, against highly conserved epitopes mapping across the majority of HIV-1 clades.
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DOI:
--
发表时间:
1990
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Miller,MD;Lord,CI;Stallard,V;Mazzara,GP;Letvin,NL
通讯作者:
Letvin,NL
DOI:
--
发表时间:
1997-10
期刊:
Laboratory investigation; a journal of technical methods and pathology
影响因子:
--
作者:
G. Baskin;R. Bontrop;H. Niphuis;R. Noort;J. Rice;J. Heeney
通讯作者:
G. Baskin;R. Bontrop;H. Niphuis;R. Noort;J. Rice;J. Heeney
DOI:
--
发表时间:
1991
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Johnson,RP;Trocha,A;Yang,L;Mazzara,GP;Panicali,DL;Buchanan,TM;Walker,BD
通讯作者:
Walker,BD
影响因子:
158.5
作者:
PANTALEO, G;MENZO, S;FAUCI, AS
通讯作者:
FAUCI, AS
DOI:
--
发表时间:
1987
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Zarling,JM;Eichberg,JW;Moran,PA;McClure,J;Sridhar,P;Hu,SL
通讯作者:
Hu,SL