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RNA splicing is a key mediator of tumour cell plasticity and a therapeutic vulnerability in colorectal cancer

ABSTRACT: RNA splicing is a key mediator of tumour cell plasticity and a therapeutic vulnerability in colorectal cancer

PROVIDER: PRJNA820858 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR18507000_1.fastq.gz	Fastqsanger.gz
	SRR18507000_2.fastq.gz	Fastqsanger.gz
	SRR18508200_1.fastq.gz	Fastqsanger.gz
	SRR18508200_2.fastq.gz	Fastqsanger.gz
	SRR18507001_1.fastq.gz	Fastqsanger.gz

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RNA splicing is a key mediator of tumour cell plasticity and a therapeutic vulnerability in colorectal cancer [wild-type and Apc mutant]

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Project description:Tumour cell plasticity is a major barrier to the efficacy of targeted cancer therapies but the mechanisms that mediate it are poorly understood. Here, we identify dysregulated RNA splicing as a key driver of tumour cell dedifferentiation in colorectal cancer (CRC). We find that Apc-deficient CRC cells have dysregulated RNA splicing machinery and exhibit global rewiring of RNA splicing. We show that the splicing factor SRSF1 controls the plasticity of tumour cells by controlling Kras splicing and is required for CRC invasion in a mouse model of carcinogenesis. SRSF1 expression maintains stemness in human CRC organoids and correlates with cancer stem cell marker expression in human tumours. Crucially, partial genetic downregulation of Srsf1 does not detrimentally affect normal tissue homeostasis, demonstrating that tumour cell plasticity can be differentially targeted. Thus, our findings link dysregulation of the RNA splicing machinery and control of tumour cell plasticity.

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