PMID- 24392114 OWN - NLM STAT- MEDLINE DCOM- 20141118 LR - 20220408 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 9 IP - 1 DP - 2014 TI - MicroRNA-208a increases myocardial fibrosis via endoglin in volume overloading heart. PG - e84188 LID - 10.1371/journal.pone.0084188 [doi] LID - e84188 AB - MicroRNA-208a (mir-208a) is essential for cardiac hypertrophy and fibrosis. Endoglin, a co-receptor of transforming growth factor-beta is also essential for cardiac fibrosis. Endoglin has been shown to be a target of mir-208a in the in vitro mechanical stress model. Volume overload can lead to heart failure and cardiac fibrosis. The role of mir-208a and endoglin in volume overload heart failure is well known. We sought to investigate the mechanism of regulation of mir-208a and endoglin in volume overload-induced heart failure. Aorta-caval (AV) shunt was performed in adult Sprague-Dawley rats to induce volume overload. Heart weight and heart weight/body weight ratio significantly increased in AV shunt animals. AV shunt significantly increased left ventricular end-diastolic dimension as compared to sham group. Mir-208a was significantly induced by AV shunt from 3 to 14 days. Endoglin, myosin heavy chain-beta and brain natriuretic peptide were significantly induced by AV shunt from 3 to 14 days. Overexpression of mir-208a in the sham group without AV shunt significantly increased endoglin expression similar to the AV shunt group. Antagomir-208a attenuated the endoglin expression induced by AV shunt. Pretreatment with atorvastatin also attenuated the endoglin expression induced by AV shunt. AV shunt significantly increased myocardial fibrosis as compared to sham group. Overexpression of mir-208a in the sham group significantly increased myocardial fibrosis. Antagomir-208a and atorvastatin significantly attenuated the myocardial fibrosis induced by AV shunt. In conclusion, mir-208a increased endoglin expression to induce myocardial fibrosis in volume overloaded heart failure. Treatment with atorvastatin can attenuate the myocardial fibrosis induced by volume overload through inhibition of endoglin expression. FAU - Wang, Bao-Wei AU - Wang BW AD - School of Medicine, Fu-Jen Catholic University, New Taipei City, Taiwan ; Division of Cardiology, Shin Kong Wu Ho-Su Memorial Hospital, Taipei, Taiwa. FAU - Wu, Gong-Jhe AU - Wu GJ AD - School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan ; Department of Anesthesiology, Shin Kong Wu Ho-Su Memorial Hospital, Taipei, Taiwan. FAU - Cheng, Wen-Ping AU - Cheng WP AD - Division of Cardiology, Shin Kong Wu Ho-Su Memorial Hospital, Taipei, Taiwa. FAU - Shyu, Kou-Gi AU - Shyu KG AD - Division of Cardiology, Shin Kong Wu Ho-Su Memorial Hospital, Taipei, Taiwa ; Graduate Institute of Clinical Medicine, Taipei Medical University, Taipei, Taiwan. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140102 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - 0 (Endoglin) RN - 0 (Eng protein, rat) RN - 0 (Intracellular Signaling Peptides and Proteins) RN - 0 (MIRN208 microRNA, rat) RN - 0 (MicroRNAs) SB - IM MH - Animals MH - Cardiomegaly/*genetics/*pathology/physiopathology MH - Disease Models, Animal MH - Echocardiography MH - Endoglin MH - Fibrosis MH - Gene Expression MH - Gene Expression Regulation MH - Hemodynamics MH - Intracellular Signaling Peptides and Proteins/*genetics MH - MicroRNAs/*genetics MH - Myocardium/*metabolism/*pathology MH - Organ Size MH - Rats PMC - PMC3879305 COIS- Competing Interests: The authors have declared that no competing interests exist. EDAT- 2014/01/07 06:00 MHDA- 2014/11/19 06:00 PMCR- 2014/01/02 CRDT- 2014/01/07 06:00 PHST- 2013/08/26 00:00 [received] PHST- 2013/11/13 00:00 [accepted] PHST- 2014/01/07 06:00 [entrez] PHST- 2014/01/07 06:00 [pubmed] PHST- 2014/11/19 06:00 [medline] PHST- 2014/01/02 00:00 [pmc-release] AID - PONE-D-13-35191 [pii] AID - 10.1371/journal.pone.0084188 [doi] PST - epublish SO - PLoS One. 2014 Jan 2;9(1):e84188. doi: 10.1371/journal.pone.0084188. eCollection 2014.