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Accession IconGSE37468

Gene Expression Data for male C57BL/6, Mdr2-KO and Mdr2-KO/IL6-KO at the age of 14 months

Organism Icon Mus musculus
Sample Icon 11 Downloadable Samples
Technology Badge Icon Affymetrix Mouse Gene 1.0 ST Array (mogene10st)

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Description
Chronic inflammation is a common underlying condition associated with tumor development, accounting for approximately 20% of human cancers. This association is especially apparent in Hepatocellular carcinoma (HCC), which often develops on the background of chronic hepatitis and hepatic fibrosis, slowly unfolding on a background of chronic inflammation. HCC is one of the most common tumors worldwide, exhibiting a very poor prognosis and high mortality rate with limited available therapeutic tools. The etiology of liver cancer is well known, however there is still a lack of precise knowledge about pathogenesis of HCC. IL-6 have been shown to be of importance for liver protection and prevention of liver injury in animal models of acute sclerosing cholangitis and correlate with increased HCC in human patients. Using a murine model of chronic cholangitis based on the ablation of the Mdr2 gene, this study has examined the role of IL-6 signaling in chronic hepatitis and in the subsequent development of liver cancer. The main observations of this study are that IL-6 signaling in male Mdr2-KO mice protects from the development of liver injury and fibrosis, but simultaneously promotes tumor initiation. Thus, IL-6 deficiency in male Mdr2-KO mice dissociates the tight correlation between liver fibrosis and the development of inflammation-associated HCC.
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