ArticleCell cycle (Georgetown, Tex.)2020
Circular RNA-DENND4C in H9c2 cells relieves OGD/R-induced injury by down regulation of microRNA-320.
Article in Cell cycle (Georgetown, Tex.), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Functional role of circular RNA XYLT1 in vascular remodeling and oxidative stress in aging.Experimental gerontology · 2025Article
- Circular RNAs in coronary heart disease: From molecular mechanism to promising clinical application (Review).International journal of molecular medicine · 2025Review
- CircRNA Networks in CAD: Multi-Cellular Mechanisms and Clinical Potential.International journal of general medicine · 2025Review
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7 authors.
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Abstract
Ischemic heart disease (IHD) is one of the most deadly diseases worldwide. To detect the regulatory mechanism, the circular RNA (circRNA)-differentially expressed in normal cells and neoplasia domain containing 4 C (DENND4C) was explored in the H9c2 cells. The circRNA-DENND4C overexpressing plasmid, si-circRNA-DENND4C and miR-320 mimic were transfected into the H9c2 cells and treated with OGD/R stimulation. We took CCK-8 method, Annexin V-FITC/PI-flow cytometer to search for viability and apoptotic ability. With the help of qRT-PCR and western blot, the expression of circRNA-DENND4C and miR-320, as well as the Bax, Cleaved PARP/caspase 3 and signal proteins were separately determined. Regulation of circRNA-DENND4C and miR-320 was confirmed by dual-luciferase reporter assay. OGD/R induced suppression of cell viability, but enhancement of apoptosis and block of ERK and mTOR pathways. Moreover, circRNA-DENND4C was up-regulated after OGD/R stimulation and augmented OGD/R-stimulated damage while circRNA-DENND4C silencing displayed opposite influences. miR-320 was negatively controlled and targeted by the circRNA-DENND4C.The overexpressed miR-320 impeded the effects of circRNA-DENND4C. Besides, circRNA-DENND4C relieved the suppression of ERK and mTOR pathways caused by OGD/R stimulation, and all promoting impacts of circRNA-DENND4C were reversed by the miR-320 mimic. Overexpressed circRNA-DENND4C in H9c2 cells attenuated OGD/R-induced injuries by the down-regulation of miR-320 through the ERK and mTOR activation.
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