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      Endothelial to Mesenchymal Transition: Role in Physiology and in the Pathogenesis of Human Diseases

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      Physiological Reviews

      American Physiological Society

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          Abstract

          Numerous studies have demonstrated that endothelial cells are capable of undergoing endothelial to mesenchymal transition (EndMT), a newly recognized type of cellular transdifferentiation. EndMT is a complex biological process in which endothelial cells adopt a mesenchymal phenotype displaying typical mesenchymal cell morphology and functions, including the acquisition of cellular motility and contractile properties. Endothelial cells undergoing EndMT lose the expression of endothelial cell-specific proteins such as CD31/platelet-endothelial cell adhesion molecule, von Willebrand factor, and vascular-endothelial cadherin and initiate the expression of mesenchymal cell-specific genes and the production of their encoded proteins including α-smooth muscle actin, extra domain A fibronectin, N-cadherin, vimentin, fibroblast specific protein-1, also known as S100A4 protein, and fibrillar type I and type III collagens. Transforming growth factor-β1 is considered the main EndMT inducer. However, EndMT involves numerous molecular and signaling pathways that are triggered and modulated by multiple and often redundant mechanisms depending on the specific cellular context and on the physiological or pathological status of the cells. EndMT participates in highly important embryonic development processes, as well as in the pathogenesis of numerous genetically determined and acquired human diseases including malignant, vascular, inflammatory, and fibrotic disorders. Despite intensive investigation, many aspects of EndMT remain to be elucidated. The identification of molecules and regulatory pathways involved in EndMT and the discovery of specific EndMT inhibitors should provide novel therapeutic approaches for various human disorders mediated by EndMT.

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               J Massagué (2000)
              Cell proliferation, differentiation and death are controlled by a multitude of cell-cell signals, and loss of this control has devastating consequences. Prominent among these regulatory signals is the transforming growth factor-beta (TGF-beta) family of cytokines, which can trigger a bewildering diversity of responses, depending on the genetic makeup and environment of the target cell. What are the networks of cell-specific molecules that mould the TGF-beta response to each cell's needs?
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                Author and article information

                Journal
                Physiological Reviews
                Physiological Reviews
                American Physiological Society
                0031-9333
                1522-1210
                April 2019
                April 2019
                : 99
                : 2
                : 1281-1324
                Affiliations
                [1 ]Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania
                Article
                10.1152/physrev.00021.2018
                6734087
                30864875
                © 2019

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