Partial Escape of HIV-1 from Cytotoxic T Lymphocytes during Chronic Infection

被引:6
作者
Lewis, Martha J. [1 ,2 ]
Dagarag, Mirabelle [1 ]
Khan, Basim [1 ]
Ali, Ayub [1 ,2 ]
Yang, Otto O. [1 ,2 ,3 ]
机构
[1] Univ Calif Los Angeles, David Geffen Sch Med, Div Infect Dis, Dept Med, Los Angeles, CA 90095 USA
[2] Univ Calif Los Angeles, AIDS Inst, Los Angeles, CA USA
[3] Univ Calif Los Angeles, David Geffen Sch Med, Dept Microbiol Immunol & Med Genet, Los Angeles, CA 90095 USA
关键词
IMMUNODEFICIENCY-VIRUS TYPE-1; MONOCLONAL-ANTIBODIES; VIRAL REPLICATION; GENETIC-VARIATION; CELL RESPONSES; HLA; GAG; MUTATIONS; SELECTION; EPITOPE;
D O I
10.1128/JVI.06724-11
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Viral mutational escape from CD8(+) cytotoxic T lymphocytes (CTLs) is typically considered to be a dichotomous process and uncommon during chronic HIV-1 infection. Ex vivo passaging of HIV-1 from persons with chronic infection, however, revealed the evolution of many fixed substitutions within and around CTL-targeted regions, with an associated increase in replicative capacity. This indicates an evolution of mutations during chronic HIV-1 infection that trade replicative fitness for incomplete evasion of CTLs, or "partial escape."
引用
收藏
页码:7459 / 7463
页数:5
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