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Article Abstract
Aim: The dysregulation of hepatic lipid metabolism is closely associated with dyslipidemia. Previous research suggested that Hepatic may play a role in regulating lipid metabolism. This research aims to elucidate the function of MORC4 in hepatic lipid metabolism, thereby improving the understanding of the molecular mechanisms underlying lipid metabolism disorders.
Methods: Data regarding circulating lipid traits and hepatic expression in BXD mice were obtained from GeneNetwork. An Expression-Based Phenome-wide Association Study (ePheWAS), correlation analysis, and gene enrichment analysis were conducted to explore the relationship between expression and hepatic lipid metabolism. , the levels of total cholesterol (TC) and triglycerides (TG), lipid accumulation, and the expression of lipid metabolism-related genes were assessed subsequent to knockdown/overexpression in hepatocytes. , the impact of knockout on lipid metabolism-related traits in mice was examined using the IMPC database.
Results: Hepatic level was found to be negatively correlated with plasma free fatty acids and triglycerides in BXD mice. Further analysis indicated that genes associated with were enriched in the cholesterol metabolic pathway. In hepatocytes, knockdown significantly elevated total TC/TG levels, as well as enhanced lipid accumulation. Whereas overexpression restored total TC/TG levels, along with lipid accumulation in knockdown cell lines. Furthermore, knockdown led to an increased expression of genes associated with cholesterol synthesis (), varying levels of genes implicated in the uptake of fatty acids and cholesterol (), and a decrease in the levels of genes involved in triglyceride hydrolysis (). overexpression reversed the observed alterations in the expression levels of these genes. According on the IMPC database, knockout in mice resulted in increased fat mass, fat/body weight ratio, and elevated cholesterol level and ratio.
Conclusion: This study identifies as a crucial regulator of hepatic lipid metabolism and underscores its potential as a therapeutic target for disorders related to lipid.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC12217220 | PMC |
| http://dx.doi.org/10.3389/fcvm.2025.1570729 | DOI Listing |
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