PMID- 32953930 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20200928 IS - 2329-0501 (Print) IS - 2329-0501 (Electronic) IS - 2329-0501 (Linking) VI - 18 DP - 2020 Sep 11 TI - Treatment of Hypertensive Heart Disease by Targeting Smad3 Signaling in Mice. PG - 791-802 LID - 10.1016/j.omtm.2020.08.003 [doi] AB - Transforming growth factor beta (TGF-beta)/Smad3 signaling plays a central role in chronic heart disease. Here, we report that targeting Smad3 with a Smad3 inhibitor SIS3 in an established mouse model of hypertension significantly improved cardiac dysfunctions by preserving the left ventricle (LV) ejection fraction (LVEF) and LV fractional shortening (LVFS), while reducing the LV mass. In addition, SIS3 treatment also halted the progression of myocardial fibrosis by blocking alpha-smooth muscle actin-positive (alpha-SMA(+)) myofibroblasts and collagen matrix accumulation, and inhibited cardiac inflammation by suppressing interleukin (IL)-1beta, tumor necrosis factor alpha (TNF-alpha), monocyte chemotactic protein 1 (MCP1), intercellular cell adhesion molecule-1 (ICAM1) expression, and infiltration of CD3(+) T cells and F4/80(+) macrophages. Interestingly, treatment with SIS3 did not alter levels of high blood pressure, revealing a blood pressure-independent cardioprotective effect of SIS3. Mechanistically, treatment with SIS3 not only directly inactivated TGF-beta/Smad3 signaling but also protected cardiac Smad7 from Smurf2-mediated proteasomal ubiquitin degradation. Because Smad7 functions as an inhibitor for both TGF-beta/Smad and nuclear factor kappaB (NF-kappaB) signaling, increased cardiac Smad7 could be another mechanism through which SIS3 treatment blocked Smad3-mediated myocardial fibrosis and NF-kappaB-driven cardiac inflammation. In conclusion, SIS3 is a therapeutic agent for hypertensive heart disease. Results from this study demonstrate that targeting Smad3 signaling with SIS3 may be a novel and effective therapy for chronic heart disease. CI - (c) 2020 The Authors. FAU - Meng, Jinxiu AU - Meng J AD - Guangdong Provincial Key Laboratory of Coronary Heart Disease, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital and Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, China. AD - Department of Medicine and Therapeutics, Li Ka Shing Institute of Health Sciences, and Lui Che Woo Institute of Innovative Medicine, The Chinese University of Hong Kong, Hong Kong, China. FAU - Qin, Yuyan AU - Qin Y AD - Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China. AD - Department of Medicine and Therapeutics, Li Ka Shing Institute of Health Sciences, and Lui Che Woo Institute of Innovative Medicine, The Chinese University of Hong Kong, Hong Kong, China. FAU - Chen, Junzhe AU - Chen J AD - Department of Medicine and Therapeutics, Li Ka Shing Institute of Health Sciences, and Lui Che Woo Institute of Innovative Medicine, The Chinese University of Hong Kong, Hong Kong, China. FAU - Wei, Lihua AU - Wei L AD - Department of Medicine and Therapeutics, Li Ka Shing Institute of Health Sciences, and Lui Che Woo Institute of Innovative Medicine, The Chinese University of Hong Kong, Hong Kong, China. FAU - Huang, Xiao-Ru AU - Huang XR AD - Guangdong-Hong Kong Joint Laboratory for Immune and Genetic Kidney Disease, Guangdong Provincial People's Hospital and Guangdong Academy of Medical Sciences, Guangzhou, and The Chinese University of Hong Kong, Hong Kong SAR, China. AD - Department of Medicine and Therapeutics, Li Ka Shing Institute of Health Sciences, and Lui Che Woo Institute of Innovative Medicine, The Chinese University of Hong Kong, Hong Kong, China. FAU - Yu, Xiyong AU - Yu X AD - Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China. FAU - Lan, Hui-Yao AU - Lan HY AD - Guangdong-Hong Kong Joint Laboratory for Immune and Genetic Kidney Disease, Guangdong Provincial People's Hospital and Guangdong Academy of Medical Sciences, Guangzhou, and The Chinese University of Hong Kong, Hong Kong SAR, China. AD - Department of Medicine and Therapeutics, Li Ka Shing Institute of Health Sciences, and Lui Che Woo Institute of Innovative Medicine, The Chinese University of Hong Kong, Hong Kong, China. LA - eng PT - Journal Article DEP - 20200805 PL - United States TA - Mol Ther Methods Clin Dev JT - Molecular therapy. Methods & clinical development JID - 101624857 PMC - PMC7475647 OTO - NOTNLM OT - Ang II OT - SIS3 OT - TGF-beta/Smad OT - cardiac fibrosis and inflammation OT - hypertension EDAT- 2020/09/22 06:00 MHDA- 2020/09/22 06:01 PMCR- 2020/08/05 CRDT- 2020/09/21 06:20 PHST- 2020/04/22 00:00 [received] PHST- 2020/07/29 00:00 [accepted] PHST- 2020/09/21 06:20 [entrez] PHST- 2020/09/22 06:00 [pubmed] PHST- 2020/09/22 06:01 [medline] PHST- 2020/08/05 00:00 [pmc-release] AID - S2329-0501(20)30169-8 [pii] AID - 10.1016/j.omtm.2020.08.003 [doi] PST - epublish SO - Mol Ther Methods Clin Dev. 2020 Aug 5;18:791-802. doi: 10.1016/j.omtm.2020.08.003. eCollection 2020 Sep 11.