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Prep1 prevents premature adipogenesis of mesenchymal progenitors.

ABSTRACT: 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? (CCAAT enhancer binding protein ?) 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?.

SUBMITTER: Maroni G

PROVIDER: S-EPMC5686065 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature

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Prep1 prevents premature adipogenesis of mesenchymal progenitors.

Maroni Giorgia G Tkachuk Vsevolod A VA Egorov Alexander A Morelli Marco J MJ Luongo Raffaele R Levantini Elena E Blasi Francesco F Magli Maria Cristina MC Penkov Dmitry D

Scientific reports 20171114 1

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 pron ...[more]

PMID: 29138456

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Prep1 prevents premature adipogenesis of mesenchymal progenitors

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Prep1 prevents premature adipogenesis of mesenchymal progenitors

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