Instruction of mesenchymal cell fate by the transcription factor C/EBPβ

The transcription factor CCAAT/enhancer binding protein beta (C/EBPβ) plays a role in the differentiation of a large variety of cell types. C/EBPβ was initially described as an early inducer of adipocyte differentiation, however, recent data have shown that this is not the only mesenchymal cell line...

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Bibliographic Details
Published in:Gene 2012-04, Vol.497 (1), p.10-17
Main Authors: Smink, Jeske J., Leutz, Achim
Format: Article
Language:English
Subjects:
Adipocytes
Adipocytes - cytology
animal models
Animals
binding proteins
C/EBPbeta
CCAAT-Enhancer-Binding Protein-beta - physiology
Cell Differentiation
Cell fate
Chondrocytes
Chondrocytes - metabolism
Gene Expression Regulation
Humans
medicine
Mesenchymal stem cells
Mesenchymal Stromal Cells - metabolism
Mesenchymal Stromal Cells - physiology
Mice
Osteoblasts
Osteoblasts - cytology
protein isoforms
Protein Isoforms - metabolism
stem cells
tissue culture
Tissue Engineering
transcription factors
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Summary:The transcription factor CCAAT/enhancer binding protein beta (C/EBPβ) plays a role in the differentiation of a large variety of cell types. C/EBPβ was initially described as an early inducer of adipocyte differentiation, however, recent data have shown that this is not the only mesenchymal cell lineage where C/EBPβ has an instructive function. Mouse models and tissue culture studies have now established a regulatory role of C/EBPβ in osteoblast and in chondrocyte differentiation. These three different cell lineages are derived from the same precursor, the mesenchymal stem cell (MSC). This review will focus on the emerging role of C/EBPβ and its different protein isoforms in various mesenchymal cell lineages and its function in adipocyte, chondrocyte and osteoblast differentiation. Moreover, the mesenchymal stem cell has attracted the attention of regenerative medicine in recent years, and the possible role of C/EBPβ in this respect will be discussed. ►The role of C/EBPb in mesenchymal cell lineage decision is discussed. ► The action of C/EBPb in adipocytes, chondrocytes and osteoblasts is discussed. ► A possible dual role of C/EBPb as a repressor and activator is discussed. ► The potential implications of all this on regenerative medicine are discussed.
ISSN:0378-1119
1879-0038
DOI:10.1016/j.gene.2012.01.043