Zhumei Xu, Lingli Ouyang, Antonio Del Castillo-Olivares, William M Pandak, Gregorio Gil
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引用次数: 0
Abstract
alpha(1)-Fetoprotein transcription factor (FTF), also known as liver receptor homolog 1 (LRH-1) is highly expressed in the liver and intestine, where it is implicated in the regulation of cholesterol, bile acid and steroid hormone homeostasis. FTF is an important regulator of bile acid metabolism. We show here that FTF plays a key regulatory role in lipid homeostasis including triglyceride and cholesterol homeostasis. FTF deficient mice developed lower levels of serum triglyceride and cholesterol as a result of lower expression of several hepatic FTF target genes. Chenodeoxycholic acid repressed FTF expression resulting in a decrease in serum triglyceride in wild-type mice. The absence of chenodeoxycholic acid-mediated repression in FTF(+/-) mice demonstrated the essential role of FTF in triglyceride metabolism. Taken together, our results identify the nuclear receptor FTF as a central regulator of lipid metabolism.
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