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As important mediators for glycolysis\/gluconeogenesis and lipid metabolism, the effects of bile acids on SPX expression is yet to be understood. By using SMMC7721 and BEL-7402 cell lines, we screened the effects of bile acids and found that chenodeoxycholic acid (CDCA) and deoxycholic acid (DCA) can stimulate SPX gene transcription. Both CDCA and DCA were able to stimulate SPX mRNA expression in the liver but not colon and ileum in mice. In SMMC7721 and BEL-7402 cells, CDCA- and DCA-induced SPX promoter activity was mimicked by bile acid receptor FXR and TGR5 activation and suppressed by FXR and TGR5 silencing. Adenylate cyclase (AC)\/cyclic adenosine monophosphate (cAMP) activators significantly increased SPX promoter activity whereas the inhibitors for AC\/CAMP\/protein kinase A (PKA) and mitogen-activated protein kinases (MAPK) pathway attenuated CDCA- and DCA-induced SPX transcription. Thus, CDCA and DCA stimulate SPX expression at the hepatic level through FXR and TGR5 mediated AC\/cAMP\/PKA and MAPK cascades.<\/jats:p>","DOI":"10.3390\/cells11142159","type":"journal-article","created":{"date-parts":[[2022,7,10]],"date-time":"2022-07-10T21:19:28Z","timestamp":1657487968000},"page":"2159","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":15,"title":["Mechanisms for Bile Acids CDCA- and DCA-Stimulated Hepatic Spexin Expression"],"prefix":"10.3390","volume":"11","author":[{"given":"Qi","family":"Lai","sequence":"first","affiliation":[{"name":"Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, School of Ethnic Medicine, Yunnan Minzu University, Kunming 650504, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yanhua","family":"Ma","sequence":"additional","affiliation":[{"name":"Key Laboratory of Chemistry in Ethnic 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