PMID- 30375049 OWN - NLM STAT- MEDLINE DCOM- 20190603 LR - 20190603 IS - 1099-1573 (Electronic) IS - 0951-418X (Linking) VI - 33 IP - 1 DP - 2019 Jan TI - (+)-Isobicyclogermacrenal and spathulenol from Aristolochia yunnanensis alleviate cardiac fibrosis by inhibiting transforming growth factor beta/small mother against decapentaplegic signaling pathway. PG - 214-223 LID - 10.1002/ptr.6219 [doi] AB - Cardiac fibrosis contributes to both systolic and diastolic dysfunction in many cardiac pathophysiologic conditions. Antifibrotic therapies are likely to be a crucial strategy in curbing many fibrosis-related cardiac diseases. In our previous study, an ethyl acetate extract of a traditional Chinese medicine Aristolochia yunnanensis Franch. was found to have a therapeutic effect on myocardial fibrosis in vitro and in vivo. However, the exact chemicals and their mechanisms responsible for the activity of the crude extract have not been illustrated yet. In the current study, 10 sesquiterpenoids (1-10) were isolated from the active extract, and their antifibrotic effects were systematically evaluated in transforming growth factor beta 1 (TGFbeta1)-stimulated cardiac fibroblasts and NIH3T3 fibrosis models. (+)-Isobicyclogermacrenal (1) and spathulenol (2) were identified as the main active components, being more potent than the well-known natural antifibrotic agent oxymatrine. Compounds 1 and 2 could inhibit the TGFbeta1-induced cardiac fibroblasts proliferation and suppress the expression of the fibrosis biomarkers fibronectin and alpha-smooth muscle actin via down-regulation of their mRNA levels. The mechanism study revealed that 1 and 2 could inhibit the phosphorylation of TGFbeta type I receptor, leading to the decrease of the phosphorylation levels of downstream Smad2/3, then consequently blocking the nuclear translocation of Smad2/3 in the TGFbeta/Smad signaling pathway. These findings suggest that 1 and 2 may serve as promising natural leads for the development of anticardiac fibrosis drugs. CI - (c) 2018 John Wiley & Sons, Ltd. FAU - Lou, Lan-Lan AU - Lou LL AD - School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, China. FAU - Li, Wei AU - Li W AD - School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, China. FAU - Zhou, Bin-Hua AU - Zhou BH AD - School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, China. FAU - Chen, Lin AU - Chen L AD - School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, China. FAU - Weng, Han-Zhuang AU - Weng HZ AD - School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, China. FAU - Zou, Yi-Hong AU - Zou YH AD - School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, China. FAU - Tang, Gui-Hua AU - Tang GH AD - School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, China. FAU - Bu, Xian-Zhang AU - Bu XZ AD - School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, China. FAU - Yin, Sheng AU - Yin S AUID- ORCID: 0000-0002-5678-6634 AD - School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, China. LA - eng GR - 2014A030306047/Guangdong Natural Science Funds for Distinguished Young Scholar/ GR - 17ykzd12/Fundamental Research Funds for the Central Universities/ GR - 2015A020211007/Science and Technology Planning Project of Guangdong Province, China/ GR - 81573302/National Natural Science Foundation of China/ PT - Journal Article DEP - 20181029 PL - England TA - Phytother Res JT - Phytotherapy research : PTR JID - 8904486 RN - 0 (Aldehydes) RN - 0 (Sesquiterpenes) RN - 0 (Transforming Growth Factor beta) RN - 0 (isobicyclogermacrenal) RN - 7XV9L96SJJ (spathulenol) SB - IM MH - Aldehydes/pharmacology/*therapeutic use MH - Animals MH - Aristolochia/*chemistry MH - Fibrosis/*drug therapy/pathology MH - Humans MH - Male MH - Medicine, Chinese Traditional/*methods MH - Mice MH - Mothers MH - Rats, Sprague-Dawley MH - Sesquiterpenes/pharmacology/*therapeutic use MH - Signal Transduction MH - Transforming Growth Factor beta/*metabolism OTO - NOTNLM OT - (+)-Isobicyclogermacrenal OT - Aristolochia yunnanensis OT - TGFbeta/Smad OT - cardiac fibrosis OT - spathulenol EDAT- 2018/10/31 06:00 MHDA- 2019/06/04 06:00 CRDT- 2018/10/31 06:00 PHST- 2018/03/28 00:00 [received] PHST- 2018/09/03 00:00 [revised] PHST- 2018/09/30 00:00 [accepted] PHST- 2018/10/31 06:00 [pubmed] PHST- 2019/06/04 06:00 [medline] PHST- 2018/10/31 06:00 [entrez] AID - 10.1002/ptr.6219 [doi] PST - ppublish SO - Phytother Res. 2019 Jan;33(1):214-223. doi: 10.1002/ptr.6219. Epub 2018 Oct 29.