Title : Selective PPARĪ“ agonist seladelpar suppresses bile acid synthesis by reducing hepatocyte CYP7A1 via the fibroblast growth factor 21 signaling pathway.

Pub. Date : 2022 May 20

PMID : 35605662






7 Functional Relationships(s)
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1 Selective PPARdelta agonist seladelpar suppresses bile acid synthesis by reducing hepatocyte CYP7A1 via the fibroblast growth factor 21 signaling pathway. Seladelpar cytochrome P450, family 7, subfamily a, polypeptide 1 Mus musculus
2 We show that administration of seladelpar to wild type mice repressed the liver expression of cholesterol 7 alpha-hydroxylase (Cyp7a1), the rate-limiting enzyme for bile acid synthesis, and decreased plasma 7alpha-hydroxy-4-cholesten-3-one (C4), a freely diffusible metabolite downstream of Cyp7a1. Seladelpar cytochrome P450, family 7, subfamily a, polypeptide 1 Mus musculus
3 We show that administration of seladelpar to wild type mice repressed the liver expression of cholesterol 7 alpha-hydroxylase (Cyp7a1), the rate-limiting enzyme for bile acid synthesis, and decreased plasma 7alpha-hydroxy-4-cholesten-3-one (C4), a freely diffusible metabolite downstream of Cyp7a1. Seladelpar cytochrome P450, family 7, subfamily a, polypeptide 1 Mus musculus
4 We show that administration of seladelpar to wild type mice repressed the liver expression of cholesterol 7 alpha-hydroxylase (Cyp7a1), the rate-limiting enzyme for bile acid synthesis, and decreased plasma 7alpha-hydroxy-4-cholesten-3-one (C4), a freely diffusible metabolite downstream of Cyp7a1. Seladelpar cytochrome P450, family 7, subfamily a, polypeptide 1 Mus musculus
5 In primary mouse hepatocytes, we found seladelpar significantly reduced the expression of Cyp7a1 independent of the nuclear bile acid receptor, Farnesoid X receptor (FXR). Seladelpar cytochrome P450, family 7, subfamily a, polypeptide 1 Mus musculus
6 The suppressive effect of seladelpar on Cyp7a1 expression was blocked by a JNK inhibitor as well as in the absence of Fgf21, indicating that Fgf21 plays an indispensable role in PPARdelta-mediated downregulation of Cyp7a1. Seladelpar cytochrome P450, family 7, subfamily a, polypeptide 1 Mus musculus
7 The suppressive effect of seladelpar on Cyp7a1 expression was blocked by a JNK inhibitor as well as in the absence of Fgf21, indicating that Fgf21 plays an indispensable role in PPARdelta-mediated downregulation of Cyp7a1. Seladelpar cytochrome P450, family 7, subfamily a, polypeptide 1 Mus musculus