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Lung cancer-intrinsic SOX2 expression mediates resistance to checkpoint blockade therapy by inducing Treg cell-dependent CD8+ T cell exclusion

GSE256071 Mus musculus Expression profiling by high throughput sequencing 6 samples Submitted 2024/12/19 Platform GPL19057
Summary
Tumor-intrinsic signaling pathways can drastically affect the tumor immune microenvironment (TME), promoting tumor progression and resistance to immunotherapy by excluding immune cell populations from the tumor. Several tumor-cell intrinsic pathways have been reported to modulate myeloid cell infiltration and subsequent T cell recruitment. Clinical evidence suggests that excluding cytotoxic T cells from the tumor core mediates resistance to immunotherapy. Here, we find that tumor cell-intrinsic SOX2 expression in non-small cell lung cancer induces the exclusion of cytotoxic T cells from the tumor core and promotes resistance to checkpoint blockade therapy. CD8+ T cell exclusion was dependent on regulatory T cell-mediated suppression of tumor vasculature. Depleting tumor-infiltrating regulatory T cells via Glucocorticoid-Induced TNFR-Related protein (GITR) restored CD8+ T cell infiltration and, combined with checkpoint blockade therapy, reduced tumor growth.
Published in
Lung Cancer-Intrinsic SOX2 Expression Mediates Resistance to Checkpoint Blockade Therapy by Inducing Treg-Dependent CD8+ T-cell Exclusion
Torres-Mejia E, Weng S, Whittaker CA et al. · Cancer immunology research 2025 · PMID 39745382 · doi:10.1158/2326-6066.CIR-24-0184
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Also filed as BioProject PRJNA1077989 and SRA study SRP490343. Searching any of these in the dataset finder brings you back here.

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