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- W2024429819 abstract "Relatively little is known about mitochondria metabolism in differentiating embryonic stem (ES) cells. Present research focused on several elements of cellular energy metabolism in hepatic-like tissue derived from mouse ES cells. We demonstrated that mitochondrial location patterns and mitochondrial membrane potential (ΔΨm) existed in subsequent differentiation of the tissue. Mitochondriogenesis appeared at the early stage and kept a normal ΔΨm in differentiated mature hepatocytes. Peroxisome proliferator-activated receptor-α (PPAR-α) expression was transitorily increased at the beginning, and kept a relatively low level later, which accompanied by expression of PPAR-γ coactivator (PGC)-1α, a master regulator of mitochondrial biogenesis. PPAR-β expression showed robust up-regulation in the late differentiation course. Enhanced co-expressions of PPAR-β and albumin with catalysis of UDP-glucuronosyltransferases (UGTs) were observed at mature stage. While PPAR-γ expression changed little before and after differentiation. Mitochondriogenesis could be accelerated by PPAR-α specific agonist WY14643 and abolished by its antagonist GW6471 at the early stage. Neither of them affected mitochondrial ΔΨm and albumin generation in the differentiated hepatocytes. Furthermore, maturation of hepatic-like tissue and mitochondriogenesis in hepatocyte could be efficiently stimulated by PPAR-β specific agonist L165041 and abolished by PPAR-β specific antagonist GSK0660, but not affected by PPAR-γ specific agonist GW1929. In conclusion, the derived hepatic tissue morphologically possessed cellular energy metabolism features. PPAR-α seemed only necessary for early mitochondriogenesis, while less important for ΔΨm retention in the mature tissue derived. The stimulation of PPAR-β but not -γ enhanced hepatogenesis, hepatocytes maturation, and mitochondriogenesis. PPAR-β took an important role in cellular energy metabolism of hepatogenesis. J. Cell. Biochem. 109: 498–508, 2010. © 2009 Wiley-Liss, Inc." @default.
- W2024429819 created "2016-06-24" @default.
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- W2024429819 date "2009-01-01" @default.
- W2024429819 modified "2023-10-16" @default.
- W2024429819 title "PPAR-β facilitating maturation of hepatic-like tissue derived from mouse embryonic stem cells accompanied by mitochondriogenesis and membrane potential retention" @default.
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- W2024429819 doi "https://doi.org/10.1002/jcb.22426" @default.
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