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Open AccessJournal ArticleDOI

Coexpression of Tim-3 and PD-1 identifies a CD8+ T-cell exhaustion phenotype in mice with disseminated acute myelogenous leukemia

TLDR
Combined PD-1/PDL1 and Tim-3/galectin-9 blockade may be beneficial in preventing CD8(+) T-cell exhaustion in patients with hematologic malignancies such as advanced AML.
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This article is published in Blood.The article was published on 2011-04-28 and is currently open access. It has received 544 citations till now. The article focuses on the topics: Cytotoxic T cell & CD8.

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Lag-3, Tim-3, and TIGIT: Co-inhibitory Receptors with Specialized Functions in Immune Regulation

TL;DR: Co-inhibitory receptors, such as CTLA-4 and PD-1, have an important role in regulating T cell responses and have proven to be effective targets in the setting of chronic diseases where constitutive co- inhibitory receptor expression on T cells dampens effector T-cell responses.
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4-1BB costimulation ameliorates T cell exhaustion induced by tonic signaling of chimeric antigen receptors

TL;DR: It is shown that tonic CAR CD3-ζ phosphorylation, triggered by antigen-independent clustering of CAR single-chain variable fragments, can induce early exhaustion of CAR T cells that limits antitumor efficacy, and that CD28 costimulation augments, whereas 4-1BB costimulations reduces, exhaustion induced by persistent CAR signaling.
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Targeting the PD-1/B7-H1(PD-L1) pathway to activate anti-tumor immunity.

TL;DR: Encouraging early clinical results using blocking agents against components of the PD-1 pathway have validated its importance as a target for cancer immunotherapy.
Journal ArticleDOI

CD8+ cytotoxic T lymphocytes in cancer immunotherapy: A review.

TL;DR: CD8 + T cell priming is directed essentially as a corroboration work between cells of innate immunity including dendritic cells (DCs) and natural killer (NK) cells with CD4 + T cells in adoptive immunity for making durable and efficient antitumor immune responses.
References
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Journal ArticleDOI

Restoring function in exhausted CD8 T cells during chronic viral infection.

TL;DR: In this article, the authors analyzed genes expressed in functionally impaired virus-specific CD8 T cells present in mice chronically infected with lymphocytic choriomeningitis virus (LCMV), and compared these with the gene profile of functional memory CD8T cells.
Journal Article

Restoring function in exhausted CD8 T cells during chronic viral infection

TL;DR: It is found that even in persistently infected mice that were lacking CD4 T-cell help, blockade of the PD-1/PD-L1 inhibitory pathway had a beneficial effect on the ‘helpless’ CD8 T cells, restoring their ability to undergo proliferation, secrete cytokines, kill infected cells and decrease viral load.
Journal ArticleDOI

Viral Immune Evasion Due to Persistence of Activated T Cells Without Effector Function

TL;DR: The persistence of activated virus-specific CD8 T cells without effector function reveals a novel mechanism for silencing antiviral immune responses and also offers new possibilities for enhancingCD8 T cell immunity in chronically infected hosts.
Journal ArticleDOI

Molecular Signature of CD8+ T Cell Exhaustion during Chronic Viral Infection

TL;DR: T cell exhaustion was progressive, and gene-expression profiling indicated that T cell exhaustion and anergy were distinct processes, which provides a framework for designing rational immunotherapies during chronic infections.
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