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Cancer-associated fibroblasts metabolic targeting overcomes T-cell exclusion and chemoresistance

ABSTRACT: Cancer-associated fibroblasts metabolic targeting overcomes T-cell exclusion and chemoresistance

PROVIDER: PRJNA996074 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR25336714.fastq.gz	Fastqsanger.gz
	SRR25336715.fastq.gz	Fastqsanger.gz
	SRR25336716.fastq.gz	Fastqsanger.gz
	SRR25336717.fastq.gz	Fastqsanger.gz
	SRR25336718.fastq.gz	Fastqsanger.gz

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Project description:T cell-based immunotherapies have exhibited promising outcomes in tumor control; however, their efficacy is limited in immune-excluded tumors. Cancer-associated fibroblasts (CAFs) play a pivotal role in shaping the tumor microenvironment and modulating immune infiltration. Despite the identification of distinct CAF subtypes using single-cell RNA-sequencing (scRNA-seq), their functional impact on hindering T-cell infiltration remains unclear, particularly in soft-tissue sarcomas (STS) characterized by low response rates to T cell-based therapies. In this study, we characterize the STS microenvironment using murine models (in female mice) with distinct immune composition by scRNA-seq, and identify a subset of CAFs we termed glycolytic cancer-associated fibroblasts (glyCAF). GlyCAF rely on GLUT1-dependent expression of CXCL16 to impede cytotoxic T-cell infiltration into the tumor parenchyma. Targeting glycolysis decreases T-cell restrictive glyCAF accumulation at the tumor margin, thereby enhancing T-cell infiltration and augmenting the efficacy of chemotherapy. These findings highlight avenues for combinatorial therapeutic interventions in sarcomas and possibly other solid tumors. Further investigations and clinical trials are needed to validate these potential strategies and translate them into clinical practice.

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