Transcriptomics

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Dynamic CD8+ T cell responses to cancer immunotherapy in human regional lymph nodes are disrupted by metastasis


ABSTRACT: CD8+ T cell responses are critical for anti-tumor immunity. While extensively profiled in the tumor microenvironment (TME), recent studies in mice identified responses in lymph nodes (LN) as essential; however, the role of LN in human cancer patients remains unknown. Here, we examined CD8+ T cells in human head and neck squamous cell carcinomas (HNSCC) and regional lymph node (LN) using single-cell genomics. We identified progenitor exhausted CD8+ T cells (TCF7 Exhausted) that were clonally related to terminally exhausted CD8 T cells in the TME. Our results identify an important role for the LN as a reservoir of more functional CD8+ T cells for anti-tumor immune responses in humans.

ORGANISM(S): Homo sapiens

PROVIDER: GSE212797 | GEO | 2023/03/01

REPOSITORIES: GEO

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