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The MicroRNA miR-155 Is Essential in Fibrosis

Department of Microbiology & Immunology, Drexel University College of Medicine, Drexel University, 2900 Queen Lane, Philadelphia, PA 19129, USA
Author to whom correspondence should be addressed.
Non-Coding RNA 2019, 5(1), 23;
Received: 31 January 2019 / Revised: 4 March 2019 / Accepted: 7 March 2019 / Published: 12 March 2019
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The function of microRNAs (miRNAs) during fibrosis and the downstream regulation of gene expression by these miRNAs have become of great biological interest. miR-155 is consistently upregulated in fibrotic disorders, and its ablation downregulates collagen synthesis. Studies demonstrate the integral role of miR-155 in fibrosis, as it mediates TGF-β1 signaling to drive collagen synthesis. In this review, we summarize recent findings on the association between miR-155 and fibrotic disorders. We discuss the cross-signaling between macrophages and fibroblasts that orchestrates the upregulation of collagen synthesis mediated by miR-155. As miR-155 is involved in the activation of the innate and adaptive immune systems, specific targeting of miR-155 in pathologic cells that make excessive collagen could be a viable option before the depletion of miR-155 becomes an attractive antifibrotic approach. View Full-Text
Keywords: miR-155; fibrosis; inflammasome; fibroblasts; TGF-β1 miR-155; fibrosis; inflammasome; fibroblasts; TGF-β1
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Eissa, M.G.; Artlett, C.M. The MicroRNA miR-155 Is Essential in Fibrosis. Non-Coding RNA 2019, 5, 23.

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