PMID- 31604527 OWN - NLM STAT- MEDLINE DCOM- 20200720 LR - 20220622 IS - 1090-2104 (Electronic) IS - 0006-291X (Linking) VI - 520 IP - 2 DP - 2019 Dec 3 TI - Shikonin attenuates sympathetic remodeling in chronic heart failure mice via regulating miR-124. PG - 359-365 LID - S0006-291X(19)31928-X [pii] LID - 10.1016/j.bbrc.2019.10.038 [doi] AB - AIMS: Shikonin is a naphthoquinone compound extracted from the root of Lithospermum with various pharmacological activities. Sympathetic neural remodeling greatly contributes to chronic heart failure. Growing evidence has identified a critical role of microRNAs (miRNAs) in a variety of cardiac biological processes. This study aimed to verify whether shikonin could attenuate sympathetic neural remodeling and explore the possible regulatory role of miRNAs in this process. MAIN METHODS: Shikonin was administered to mice after transverse aortic constriction (TAC). Immunohistochemistry and western blotting were used to assess the expression of TAC-induced sympathetic remodeling-related proteins. KEY FINDINGS: TAC-induced expression of the sympathetic remodeling-related proteins, tyrosine hydroxylase (TH), growth associated protein 43 (GAP43), choline acetyltransferase (ChAT), vesicular acetylcholine transporter (VAChT), and nerve growth factor (NGF), was significantly decreased in cardiac tissues. MiR-124 expression significantly increased after heart failure and decreased after shikonin treatment. An adeno-associated virus 9 (AAV9) vector was packaged and used to transfect myocardial tissues of aortic-constricted mice with miR-124, resulting in increased heart miR-124 levels and inhibition of the effects of shikonin on sympathetic neural remodeling. Immunohistochemical staining showed that the density of TH-, GAP43-, and ChAT-positive nerves was significantly increased in aortic-constricted mice after transfection with AAV9-miR-124. SIGNIFICANCE: Our data demonstrate that shikonin administration prevents sympathetic neural remodeling in mice with TAC-induced heart failure. The effects of shikonin on heart failure may be partly due to miR-124-mediated attenuation of sympathetic remodeling. Our results reveal a novel mechanism underlying the therapeutic effect of shikonin in heart failure. CI - Copyright (c) 2019 Elsevier Inc. All rights reserved. FAU - Liu, Wen-Lin AU - Liu WL AD - Affiliated Hospital of Guangdong Medical University; Clinical Research Center of Affiliated Hospital of Guangdong Medical University. FAU - Liu, Qiang AU - Liu Q AD - Affiliated Hospital of Guangdong Medical University; Clinical Research Center of Affiliated Hospital of Guangdong Medical University. Electronic address: liuqiangmd1@yeah.net. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20191008 PL - United States TA - Biochem Biophys Res Commun JT - Biochemical and biophysical research communications JID - 0372516 RN - 0 (Cardiotonic Agents) RN - 0 (GAP-43 Protein) RN - 0 (MicroRNAs) RN - 0 (Mirn124 microRNA, mouse) RN - 0 (Naphthoquinones) RN - 0 (Slc18a3 protein, mouse) RN - 0 (Vesicular Acetylcholine Transport Proteins) RN - 3IK6592UBW (shikonin) SB - IM EIN - Biochem Biophys Res Commun. 2022 Aug 27;618:153-154. PMID: 35732545 MH - Animals MH - Cardiotonic Agents/*pharmacology MH - Chronic Disease MH - Constriction, Pathologic MH - GAP-43 Protein/metabolism MH - Gene Expression Regulation/drug effects MH - Heart Failure/*drug therapy/genetics/pathology MH - Male MH - Mice, Inbred C57BL MH - MicroRNAs/*genetics MH - Myocardium/metabolism/pathology MH - Naphthoquinones/*pharmacology MH - Sympathetic Nervous System/drug effects MH - Vesicular Acetylcholine Transport Proteins/metabolism OTO - NOTNLM OT - Heart failure OT - Shikonin OT - Sympathetic remodeling OT - miRNA-124 EDAT- 2019/10/13 06:00 MHDA- 2020/07/21 06:00 CRDT- 2019/10/13 06:00 PHST- 2019/09/22 00:00 [received] PHST- 2019/10/03 00:00 [accepted] PHST- 2019/10/13 06:00 [pubmed] PHST- 2020/07/21 06:00 [medline] PHST- 2019/10/13 06:00 [entrez] AID - S0006-291X(19)31928-X [pii] AID - 10.1016/j.bbrc.2019.10.038 [doi] PST - ppublish SO - Biochem Biophys Res Commun. 2019 Dec 3;520(2):359-365. doi: 10.1016/j.bbrc.2019.10.038. Epub 2019 Oct 8.