期刊
SCIENTIFIC REPORTS
卷 7, 期 -, 页码 -出版社
NATURE PORTFOLIO
DOI: 10.1038/s41598-017-15828-1
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资金
- AIRC (Associazione Italiana Ricerche sul Cancro) [2012-12829, 2015-16759]
- Russian Foundation for Basic Research [15-04-04661]
- MIUR (Ministry of Education, University and Research) Flagship InterOmics Project
- MIUR (Ministry of Education, University and Research) MISE - Regione Toscana FAS Health
- Russian Science Foundation [14-35-00026]
- Russian Science Foundation [17-35-00005] Funding Source: Russian Science Foundation
Transcriptional regulators are crucial in adipocyte differentiation. We now show that the homeodomain-containing transcription factor Prep1 is a repressor of adipogenic differentiation since its down-regulation (DR) in both ex vivo bone marrow-derived mesenchymal stromal cells (MSC) and in vitro 3T3-L1 preadipocytes significantly increases their adipogenic differentiation ability. Prep1 acts at a stage preceding the activation of the differentiation machinery because its DR makes cells more prone to adipogenic differentiation even in the absence of the adipogenic inducers. Prep1 DR expands the DNA binding landscape of C/EBP beta (CCAAT enhancer binding protein beta) without affecting its expression or activation. The data indicate that Prep1 normally acts by restricting DNA binding of transcription factors to adipogenic enhancers, in particular C/EBP beta.
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