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PD-1 defines a distinct, functional, tissue-adapted state in Vδ1+ T cells with implications for cancer immunotherapy

ABSTRACT: PD-1 defines a distinct, functional, tissue-adapted state in Vδ1+ T cells with implications for cancer immunotherapy

PROVIDER: PRJNA972675 | ENA |

REPOSITORIES: ENA

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PD-1 defines a distinct, functional, tissue-adapted state in Vδ1+ T cells with implications for cancer immunotherapy

Project description:Checkpoint inhibition (CPI), particularly that targeting the inhibitory co-receptor, programmed cell death protein (PD-1), has transformed cancer care. Although CPI can de repress cancer antigen-specific αβ T cells that ordinarily show PD-1-dependent exhaustion, it can also be efficacious against cancers evading αβ T cell recognition. In such settings γδ T cells have been implicated, but the immunological significance of PD-1 expression by tissue associated human Vδ1+ cells remains uncharacterised. Here we demonstrate that a transcriptional signature of intratumoral Vδ1+ cells predicts response to anti-PD-1 in patients with melanomas of relatively low neoantigen load. Moreover, by employing a protocol yielding substantial numbers of human skin γδ cells, we show that PD-1+ Vδ1+ cells display a transcriptomic programme of tissue-residence, survival/self-renewal, and functional competence distinct from the canonical exhaustion programme of co-located PD- 1+ CD8+ αβ T cells. Indeed, skin PD-1+ Vδ1+ cells retained effector responses to T cell receptor signalling that were inhibitable by PD-1 engagement and partially derepressed by CPI. The biological and therapeutic implications are both discussed.

2023-09-25 | GSE232529 | GEO

PD-1 defines a distinct, functional, tissue-adapted state in Vδ1<sup>+</sup> T cells with implications for cancer immunotherapy.

Project description: Not available

| S-EPMC10965442 | biostudies-literature

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