Effect of deficiency of NLRP6 on hepatic lipids accumulation during non-alcoholic fatty liver disease in mice.
Nonalcoholic fatty liver disease (NAFLD) is one of the main causes of liver diseases in the world. At present, the pathogenesis of NAFLD is not completely clear, and the regulatory role of inflammatory corpuscles in NAFLD-related metabolic diseases is increasingly prominent. NLRP6 is a member of the NLRs family of pattern recognition receptors and is related to the occurrence and development of NAFLD, but the specific mechanism is still unclear. We report here that NLRP6 is an important regulator of liver lipid metabolism, and its absence will affect the formation and accumulation of lipid droplets in the liver. In the HFD-induced NAFLD model group, NLRP6 deletion increased the mouse lipid content and aggravated hepatocyte steatosis by up-regulating the expressions of ADRP and CIDEC and down-regulating the expression of ApoB100.On the contrary, overexpression of NLRP6 in hepatocytes can significantly reduce intracellular lipid content and lipid droplets, and reduce the expression of ADRP and CIDEC. Indicated that NLRP6 can inhibit the accumulation of lipid droplets in hepatocytes by regulating the expression of ADRP, CIDEC and ApoB100, and thus alleviating the symptoms of NAFLD. Overall design: To investigate the function of NLRP6 in the accumulation of lipid droplets in hepatocytes, we established NLRP6 knockout mice and determined that NLRP6 in hepatocytes was knocked out. Then, we performed transcriptmic analysis of liver gene sequencing for ND or HFD-treated wild type and NLRP6 knockout mice.