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Regulation of TGF-?-mediated endothelial-mesenchymal transition by microRNA-27.


ABSTRACT: Multiple microRNAs (miRNAs) regulate epithelial-mesenchymal transition and endothelial-mesenchymal transition (EndMT). Here we report that microRNA-27b (miR-27b) positively regulates transforming growth factor-? (TGF-?)-induced EndMT of MS-1 mouse pancreatic microvascular endothelial cells. TGF-? induced miR-23b/24-1/27b expression, and inhibition of miR-27 suppressed TGF-?-mediated induction of mesenchymal genes. Genome-wide miRNA target analysis revealed that miR-27 targets Elk1, which acts as a competitive inhibitor of myocardin-related transcription factor-serum response factor signalling and as a myogenic repressor. miR-27b was also found to regulate several semaphorin receptors including Neuropilin 2, Plexin A2 and Plexin D1. These results suggest important roles of miR-27 in TGF-?-driven EndMT.

SUBMITTER: Suzuki HI 

PROVIDER: S-EPMC5412016 | biostudies-literature | 2017 May

REPOSITORIES: biostudies-literature

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Regulation of TGF-β-mediated endothelial-mesenchymal transition by microRNA-27.

Suzuki Hiroshi I HI   Katsura Akihiro A   Mihira Hajime H   Horie Masafumi M   Saito Akira A   Miyazono Kohei K  

Journal of biochemistry 20170501 5


Multiple microRNAs (miRNAs) regulate epithelial-mesenchymal transition and endothelial-mesenchymal transition (EndMT). Here we report that microRNA-27b (miR-27b) positively regulates transforming growth factor-β (TGF-β)-induced EndMT of MS-1 mouse pancreatic microvascular endothelial cells. TGF-β induced miR-23b/24-1/27b expression, and inhibition of miR-27 suppressed TGF-β-mediated induction of mesenchymal genes. Genome-wide miRNA target analysis revealed that miR-27 targets Elk1, which acts as  ...[more]

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