PMID- 31878833 OWN - NLM STAT- MEDLINE DCOM- 20210129 LR - 20211011 IS - 1551-4005 (Electronic) IS - 1538-4101 (Print) IS - 1551-4005 (Linking) VI - 19 IP - 2 DP - 2020 Jan TI - Circular RNA circDENND2A protects H9c2 cells from oxygen glucose deprivation-induced apoptosis through sponging microRNA-34a. PG - 246-255 LID - 10.1080/15384101.2019.1708029 [doi] AB - Background/Aims: Myocardial ischemia (MI) is a serious threat to human health. Circular RNAs (circRNAs) play an important role in many diseases including MI. The effect and mechanism of circDENND2A in MI have not been studied.Methods: We used oxygen glucose deprivation (OGD) treatment to simulate MI in vitro. We detected circDENND2A and microRNA (miR)-34a levels by RT-qPCR. The transfection process used INTERFER and jetPRIME. Cell growth indexes including viability, apoptosis, and migration were detected by CCK8, flow cytometry, and transwell assays, respectively. In addition, the Bax, Cleaved-Caspase-3, matrix metalloproteinase (MMP)-2, MMP-9 and pathway-related protein levels were tested by Western blot.Results: OGD upregulated circDENND2A expression in H9c2 cells. Overexpression of circDENND2A enhanced cell viability and migration but declined apoptosis under OGD. Silenced circDENND 2A played the opposite effects. circDENND2A negatively regulated miR-34a. miR-34a overexpression weakened the protective effects of circDENND2A in OGD-injury. Moreover, we considered circDENND2A and miR-34a may work via beta-catenin and Ras/Raf/MEK/ERK pathways.Conclusion: circDENND2A overexpression enhanced OGD-inhibited cell viability and migration but declined OGD-promoted apoptosis by downregulating miR-34a and via beta-catenin and Ras/Raf/MEK/ERK pathways. FAU - Shao, Yuanxia AU - Shao Y AD - Department of Cardiology, Jining No.1 People's Hospital, Jining, Shandong, China. FAU - Zhong, Peng AU - Zhong P AD - Department of Cardiology, Jining No.1 People's Hospital, Jining, Shandong, China. FAU - Sheng, Li AU - Sheng L AD - Department of Cardiology, Jining No.1 People's Hospital, Jining, Shandong, China. FAU - Zheng, Hongjian AU - Zheng H AUID- ORCID: 0000-0002-5208-1880 AD - Department of Cardiology, Jining No.1 People's Hospital, Jining, Shandong, China. LA - eng PT - Journal Article PT - Retracted Publication DEP - 20191227 PL - United States TA - Cell Cycle JT - Cell cycle (Georgetown, Tex.) JID - 101137841 RN - 0 (MIRN34 microRNA, rat) RN - 0 (MicroRNAs) RN - 0 (RNA, Circular) RN - 0 (beta Catenin) RN - IY9XDZ35W2 (Glucose) RN - S88TT14065 (Oxygen) SB - IM RIN - Cell Cycle. 2022 Jan;21(1):109. PMID: 34633898 MH - Aged MH - Animals MH - Apoptosis/*genetics MH - Cell Line MH - Cell Movement/genetics MH - Cell Proliferation/genetics MH - *Cytoprotection/genetics MH - Down-Regulation/genetics MH - Female MH - Gene Silencing MH - Glucose/*deficiency MH - Humans MH - MAP Kinase Signaling System MH - Male MH - MicroRNAs/genetics/*metabolism MH - Middle Aged MH - Myocardial Infarction/genetics MH - Oxygen/*metabolism MH - RNA, Circular/genetics/*metabolism MH - Rats MH - Up-Regulation/genetics MH - beta Catenin/metabolism PMC - PMC6961690 OTO - NOTNLM OT - Myocardial ischemia OT - apoptosis OT - circDENND2A OT - miR-34a OT - migration OT - viability EDAT- 2019/12/28 06:00 MHDA- 2021/01/30 06:00 PMCR- 2020/12/27 CRDT- 2019/12/28 06:00 PHST- 2019/12/28 06:00 [pubmed] PHST- 2021/01/30 06:00 [medline] PHST- 2019/12/28 06:00 [entrez] PHST- 2020/12/27 00:00 [pmc-release] AID - 1708029 [pii] AID - 10.1080/15384101.2019.1708029 [doi] PST - ppublish SO - Cell Cycle. 2020 Jan;19(2):246-255. doi: 10.1080/15384101.2019.1708029. Epub 2019 Dec 27.