Редактирование: DUSP1

Dual specificity protein phosphatase 1 (EC 3.1.3.16) (EC 3.1.3.48) (Dual specificity protein phosphatase hVH1) (Mitogen-activated protein kinase phosphatase 1) (MAP kinase phosphatase 1) (MKP-1) (Protein-tyrosine phosphatase CL100) [CL100] [MKP1] [PTPN10] [VH1]

==Publications==

{{medline-entry
|title=miR-1468-3p Promotes Aging-Related Cardiac Fibrosis.
|pubmed-url=https://pubmed.ncbi.nlm.nih.gov/32348937
|abstract=Non-coding microRNAs (miRNAs) are powerful regulators of gene expression and critically involved in cardiovascular pathophysiology. The aim of the current study was to identify miRNAs regulating cardiac fibrosis. Cardiac samples of age-matched control subjects and sudden cardiac death ([[SCD]]) victims with primary myocardial fibrosis (PMF) were subjected to miRNA profiling. Old [[SCD]] victims with PMF and healthy aged human hearts showed increased expression of miR-1468-3p. In vitro studies in human cardiac fibroblasts showed that augmenting miR-1468-3p levels induces collagen deposition and cell metabolic activity and enhances collagen 1, connective tissue growth factor, and periostin expression. In addition, miR-1468-3p promotes cellular senescence with increased senescence-associated β-galactosidase activity and increased expression of p53 and p16. AntimiR-1468-3p antagonized transforming growth factor β1 (TGF-β1)-induced collagen deposition and metabolic activity. Mechanistically, mimic-1468-3p enhanced p38 phosphorylation, while antimiR-1468-3p decreased TGF-β1-induced p38 activation and abolished p38-induced collagen deposition. RNA sequencing analysis, a computational prediction model, and qPCR analysis identified dual-specificity phosphatases (DUSPs) as miR-1468-3p target genes, and regulation of [[DUSP1]] by miR-1468-3p was confirmed with a dual-luciferase reporter assay. In conclusion, miR-1468-3p promotes cardiac fibrosis by enhancing TGF-β1-p38 signaling. Targeting miR-1468-3p in the older population may be of therapeutic interest to reduce cardiac fibrosis.

|keywords=* aging
* cardiac fibrosis
* dual-specificity phosphatases
* extracellular matrix
* miR-1468-3p
* microRNA
* p38
* senescence
|full-text-url=https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7191129
}}
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