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Role of Jak3 in Kupffer‐cell mediated hepatic steatosis during obesity

Janus kinase 3 (Jak3), a non‐receptor protein kinase, plays an essential role in hematopoietic cell‐growth and differentiation of intestinal epithelial mucosa. Previously, we have shown that loss of Jak3 exacerbates symptoms of obesity associated metabolic syndrome in a murine model of diet‐induced obesity through compromised intestinal barrier functions and induction of chronic low‐grade inflammation (CLGI). Though, recent studies suggest a strong linkage between CLGI and hepatic steatosis, the genetic regulation of intestinal dysbiosis and their role in hepatic steatosis is not known. In this report, we investigated the tissue‐specific role of Jak3 in maintaining hepatic homeostasis during obesity associated metabolic syndrome.