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  • Title: Regulation of epithelial to mesenchymal transition by bone morphogenetic proteins.
    Author: McCormack N, O'Dea S.
    Journal: Cell Signal; 2013 Dec; 25(12):2856-62. PubMed ID: 24044921.
    Abstract:
    Epithelial to mesenchymal transition (EMT) is a process in which fully differentiated epithelial cells lose many of their epithelial characteristics and adopt features typical of mesenchymal cells, thus allowing cells to become migratory and invasive. EMT is a critical process in development and its role in cancer and fibrosis is becoming increasingly recognised. It is also becoming apparent that EMT is not just restricted to embryonic development and disease in adults, but in fact may be an important process for the maintenance and regeneration of adult tissue architecture. While transforming growth factor-β (TGF-β) is considered a prototypic inducer of EMT, relatively little is known about other signalling molecules that regulate EMT. Bone morphogenic proteins (BMPs) are members of the TGF-β superfamily and 20 different human BMPs have been identified. Originally named for their effects on bone, these proteins are now considered to be key morphogenetic signals that orchestrate tissue architecture throughout the body. BMP2, -4 and -7 are the best studied to date. There are disparate reports of the roles of BMPs in EMT during development, cancer and fibrosis. Here, we present an overview of this literature as well as the emerging role of EMT in tissue regeneration and the involvement of BMPs in regulating this process.
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