Abstract
Adipocyte differentiation is a well defined process that is under the control of transcriptional activators and repressors. We show that histone deacetylase (HDAC) inhibitors efficiently block adipocyte differentiation in vitro. This effect is specific to adipogenesis, as another mesenchymal differentiation process, osteoblastogenesis, is enhanced upon HDAC inhibition. Through the systematic genetic deletion of HDAC genes in cultured mesenchymal precursor cells, we show that deletion of HDAC1 and HDAC2 leads to reduced lipid accumulation, revealing redundant and requisite roles of these class I HDACs in adipogenesis. These findings unveil a previously unrecognized role for HDACs in the control of adipogenesis.
Publication types
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Research Support, N.I.H., Extramural
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Research Support, Non-U.S. Gov't
MeSH terms
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3T3-L1 Cells
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Adipogenesis / drug effects
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Adipogenesis / physiology*
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Animals
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Biomarkers / metabolism
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Blotting, Western
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Butyrates / pharmacology
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Cell Differentiation
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Cells, Cultured
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Embryo, Mammalian / cytology
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Embryo, Mammalian / drug effects*
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Embryo, Mammalian / metabolism
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Fibroblasts / cytology
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Fibroblasts / drug effects*
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Fibroblasts / metabolism
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Fluorescent Antibody Technique, Indirect
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Gene Expression Profiling
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Histone Deacetylase 1 / antagonists & inhibitors
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Histone Deacetylase 1 / genetics
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Histone Deacetylase 1 / metabolism*
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Histone Deacetylase 2 / antagonists & inhibitors
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Histone Deacetylase 2 / genetics
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Histone Deacetylase 2 / metabolism*
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Histone Deacetylase Inhibitors / pharmacology
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Mesenchymal Stem Cells / cytology
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Mesenchymal Stem Cells / drug effects*
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Mesenchymal Stem Cells / metabolism
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Mice
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Oligonucleotide Array Sequence Analysis
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Osteogenesis
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PPAR gamma / metabolism
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RNA, Messenger / genetics
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RNA, Messenger / metabolism
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Reverse Transcriptase Polymerase Chain Reaction
Substances
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Biomarkers
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Butyrates
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Histone Deacetylase Inhibitors
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PPAR gamma
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RNA, Messenger
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Hdac1 protein, mouse
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Hdac2 protein, mouse
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Histone Deacetylase 1
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Histone Deacetylase 2