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MiR-16-5p suppresses myofibroblast activation in systemic sclerosis by inhibiting NOTCH signaling. | LitMetric

Systemic sclerosis (SSc) is a prototypic fibrotic disease characterized by localized or diffuse skin thickening and fibrosis. Tissue fibrosis is driven by myofibroblasts, and factors affecting myofibroblast activation may also be involved in the development of SSc. In this study, we examined molecular mechanisms underlying SSc by focusing on myofibroblast activation processes. Bioinformatics analysis conducted to identify differentially expressed miRNAs (DEMs) and genes (DEGs) revealed that microRNA-16-5p (miR-16-5p) was downregulated and NOTCH2 was upregulated in SSc patients. experiments confirmed that miR-16-5p was able to bind directly to NOTCH2 and inhibit myofibroblast activation. Moreover, miR-16-5p-dependent inhibition of NOTCH2 decreased collagen and α-SMA expression. MiR-16-5p downregulation and NOTCH2 upregulation was also confirmed in SSc patients, and NOTCH2 activation promoted fibrosis progression . These results indicate that miR-16-5p suppresses myofibroblast activation by suppressing NOTCH signaling.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7880343PMC
http://dx.doi.org/10.18632/aging.202308DOI Listing

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