Cooperation of Tim-3 and PD-1 in CD8 T-cell exhaustion during chronic viral infection

Hyun Tak Jin, Ana C. Anderson, Wendy G. Tan, Erin E. West, Sang Jun Ha, Koichi Araki, Gordon J. Freeman, Vijay K. Kuchroo, Rafi Ahmed

Research output: Contribution to journalArticle

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Abstract

Inhibitory receptors play a crucial role in regulating CD8 T-cell function during chronic viral infection. T-cell Ig- and mucin-domain-containing molecule-3 (Tim-3) is well known to negatively regulate T-cell responses, but its role in CD8 T-cell exhaustion during chronic infection in vivo remains unclear. In this study, we document coregulation of CD8 T cell exhaustion by Tim-3 and PD-1 during chronic lymphocytic choriomeningitis virus infection. Whereas Tim-3 was only transiently expressed by CD8 T cells after acute infection, virus-specific CD8 T cells retained high Tim-3 expression throughout chronic infection. The majority (approximately 65% to 80%) of lymphocytic choriomeningitis virus-specific CD8 T cells in lymphoid and nonlymphoid organs coexpressedTim-3andPD-1. This coexpression of Tim-3 and PD-1 was associated with more severe CD8 T-cell exhaustion in terms of proliferation and secretion of effector cytokines such as IFN-γ, TNF-α, and IL-2. Interestingly, CD8 T cells expressing both inhibitory receptors also produced the suppressive cytokine IL-10. Most importantly, combined blockade of Tim-3 and PD-1 pathways in vivo synergistically improved CD8 T cell responses and viral control in chronically infected mice. Taken together, our study defines a parameter for determining the severity of CD8 T cell dysfunction and for identifying virus-specific CD8 T cells that produce IL-10, and shows that targeting both PD-1 and Tim-3 is an effective immune strategy for treating chronic viral infections.

Original languageEnglish
Pages (from-to)14733-14738
Number of pages6
JournalProceedings of the National Academy of Sciences of the United States of America
Volume107
Issue number33
DOIs
Publication statusPublished - 2010 Aug 17

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Virus Diseases
T-Lymphocytes
Lymphocytic choriomeningitis virus
Interleukin-10
Cytokines
Mucins
Infection
Interleukin-2

All Science Journal Classification (ASJC) codes

  • General

Cite this

Jin, Hyun Tak ; Anderson, Ana C. ; Tan, Wendy G. ; West, Erin E. ; Ha, Sang Jun ; Araki, Koichi ; Freeman, Gordon J. ; Kuchroo, Vijay K. ; Ahmed, Rafi. / Cooperation of Tim-3 and PD-1 in CD8 T-cell exhaustion during chronic viral infection. In: Proceedings of the National Academy of Sciences of the United States of America. 2010 ; Vol. 107, No. 33. pp. 14733-14738.
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Cooperation of Tim-3 and PD-1 in CD8 T-cell exhaustion during chronic viral infection. / Jin, Hyun Tak; Anderson, Ana C.; Tan, Wendy G.; West, Erin E.; Ha, Sang Jun; Araki, Koichi; Freeman, Gordon J.; Kuchroo, Vijay K.; Ahmed, Rafi.

In: Proceedings of the National Academy of Sciences of the United States of America, Vol. 107, No. 33, 17.08.2010, p. 14733-14738.

Research output: Contribution to journalArticle

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AU - Anderson, Ana C.

AU - Tan, Wendy G.

AU - West, Erin E.

AU - Ha, Sang Jun

AU - Araki, Koichi

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