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Interleukin-1β induces mitochondrial DAMP production to activate STING-dependent innate immune programs

ABSTRACT: Interleukin-1β induces mitochondrial DAMP production to activate STING-dependent innate immune programs

PROVIDER: PRJNA492336 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR7885330.fastq.gz	Fastqsanger.gz
	SRR7885340.fastq.gz	Fastqsanger.gz
	SRR7885350.fastq.gz	Fastqsanger.gz
	SRR7885360.fastq.gz	Fastqsanger.gz
	SRR7885370.fastq.gz	Fastqsanger.gz

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Interleukin-1β induces mitochondrial DAMP production to activate STING-dependent innate immune programs

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Project description:Chronic stimulation of innate immune pathways by microbial agents or damaged tissue is known to promote inflammation-driven tumorigenesis by unclarified mechanisms1-3. Here we demonstrate that mutagenic 7,12-dimethylbenz(a)anthracene (DMBA), etoposide or cisplatin induces nuclear DNA leakage into the cytosol to intrinsically activate STING (Stimulator of Interferon Genes) dependent cytokine production. Inflammatory cytokine levels were subsequently augmented in a STING-dependent extrinsic manner by infiltrating phagocytes purging dying cells. Consequently, STING-/- mice, or wild type mice adoptively transferred with STING-/- bone marrow, were almost completely resistant to DMBA-induced skin carcinogenesis compared to their wild type counterparts. Our data emphasizes, for the first time, a role for STING in the induction of cancer, sheds significant insight into the causes of inflammation-driven carcinogenesis, and may provide therapeutic strategies to help prevent malignant disease Total RNA obtained from DMBA or acetone treated wild type (WT) or STING deficient (SKO) mouse skin or skin tumor was examined for gene expression.

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Inflammation-Driven Carcinogenesis is Mediated through STING [MEFs]

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