The effects of cyclin-dependent kinase inhibitors on adipogenic differentiation of human mesenchymal stem cells.

The effects of cyclin-dependent kinase inhibitors on adipogenic differentiation of human mesenchymal stem cells. Research Abstract Details 

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The effects of cyclin-dependent kinase inhibitors on adipogenic differentiation of human mesenchymal stem cells. Abstract Text:

Jin Wook Kang,Youngju Choi,Jae Hyun Park,Ji Seon Kim,Ki Dae Park,Dae Hyun Baek,Su-Kyoung Seong,Kyoung Suk Choi,So Yoon Lim,Hyung Soo Kim,Jin Wook Kang,Youngju Choi,Jae Hyun Park,Ji Seon Kim,Ki Dae Park,Dae Hyun Baek,Su-Kyoung Seong,Kyoung Suk Choi,So Yoon Lim,Hyung Soo Kim,

The molecular mechanisms that couple growth arrest and cell differentiation were examined during adipogenesis. Here, to understand the cyclin-dependent kinase inhibitor (CKI) genes involved in the progression of adipogenic differentiation, we examined changes in the protein and mRNA expression levels of CKI genes in vitro. During the onset of growth arrest associated with adipogenic differentiation, two independent families of CKI genes, p27Kip1 and p18INK4c, were significantly increased. The expressions of p27Kip1 and p18INK4c, regulated at the level of protein and mRNA accumulation, were directly coupled to adipogenic differentiation. This finding was supported by the inhibition of adipogenic differentiation caused by short interfering RNA (siRNA). In this study, we investigated the regulatory effects of transforming growth factor beta-1 (TGFbeta-1) on CKI genes involved in adipogenic differentiation of bone marrow-derived human mesenchymal stem cells (hMSCs). Only the up-regulation of p18INK4c during adipogenic differentiation, and not that of the p27Kip1 gene was prevented by treatment with TGFbeta-1, one of the factors that inhibit adipogenesis in vitro. This finding indicates a close correlation between adipogenic differentiation and p18INK4c induction in hMSCs. Thus, these data demonstrate a role for the differentiation-dependent cascade expression of cyclin-dependent kinase inhibitors in regulating adipogenic differentiation, thereby providing a molecular mechanism that couples growth arrest and differentiation.

The effects of cyclin-dependent kinase inhibitors on adipogenic differentiation of human mesenchymal stem cells. Publishing Authors By Initials

JW Kang,Y Choi,JH Park,JS Kim,KD Park,DH Baek,SK Seong,KS Choi,SY Lim,HS Kim,JW Kang,Y Choi,JH Park,JS Kim,KD Park,DH Baek,SK Seong,KS Choi,SY Lim,HS Kim,

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The effects of cyclin-dependent kinase inhibitors on adipogenic differentiation of human mesenchymal stem cells. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Biochemical and biophysical research communication

VOLUME: 366

Page Numbers: 624-30

Journal Abbreviation: Biochem. Biophys. Res. Commun.

ISSN: 1090-2104

DAY: 29

MONTH: 11

YEAR: 2007

The effects of cyclin-dependent kinase inhibitors on adipogenic differentiation of human mesenchymal stem cells. Information

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LANGUAGE: eng

NlmUniqueID: 372516

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AFFILIATION: Biotechnological Development Assistance Team, National Institute of Toxicological Research, Korea Food & Drug Administration, 194 Nokbun-dong, Eunpyung-ku, Seoul 122-704, Republic of Korea.

Country: United States

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MEDLINETA: Biochem Biophys Res Commun

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