期刊
JOURNAL OF IMMUNOLOGY
卷 179, 期 1, 页码 322-328出版社
AMER ASSOC IMMUNOLOGISTS
DOI: 10.4049/jimmunol.179.1.322
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资金
- NEI NIH HHS [P30 EY008098-19, P30 EY008098, R01 EY005945-22, P30 EY 08098, R01 EY005945, EY 05945, R01 EY005945-21, P30 EY008098-20] Funding Source: Medline
- NIAID NIH HHS [T32 AI060525, T32 AI 060525, T32 AI060525-01A1, T32 AI049820, 5T32 AI 049820, R01 AI049719, AI 49719] Funding Source: Medline
Recurrent HSV-1 ocular disease results from reactivation of latent virus in trigeminal ganglia, often following immunosuppression or exposure to a variety of psychological or physical stressors. HSV-specific CD8(+) T cells can block HSV-1 reactivation from latency in ex vivo trigeminal ganglia cultures through production of IFN-gamma. In this study, we establish that either CD8(+) T cell depletion or exposure to restraint stress permit HSV-1 to transiently escape from latency in vivo. Restraint stress caused a reduction of TG-resident HSV-specific CD8(+) T cells and a functional compromise of those cells that survive. Together, these effects of stress resulted in an approximate 65% reduction of cells capable of producing IFN-gamma in,response to reactivating virus. Our findings demonstrate persistent in vivo regulation of latent HSV-1 by CD8(+) T cells, and strongly support the concept that stress induces HSV-1 reactivation from latency at least in part by compromising CD8(+) T cell surveillance of latently infected neurons.
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