PMID- 30662666 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20200930 IS - 1943-8141 (Print) IS - 1943-8141 (Electronic) IS - 1943-8141 (Linking) VI - 10 IP - 12 DP - 2018 TI - Muscone improves cardiac function in mice after myocardial infarction by alleviating cardiac macrophage-mediated chronic inflammation through inhibition of NF-kappaB and NLRP3 inflammasome. PG - 4235-4246 AB - Muscone is the main active monomer of traditional Chinese medicine musk. Previous studies have reported a variety of beneficial effects of muscone. However, the effects of muscone on chronic inflammation after myocardial infarction (MI) are rarely reported. This study evaluated the anti-inflammatory effects of muscone on myocardial infarction by establishing a MI model in mice. We found that muscone remarkably decreased the levels of inflammatory cytokines (IL-1beta, TNF-alpha and IL-6), and ultimately improved cardiac function and survival rate. Furthermore, the main anti-inflammatory effect of muscone was alleviating cardiac macrophage-mediated inflammatory response in heart tissues after MI. Bone marrow-derived macrophages (BMDMs) induced with lipopolysaccharide (LPS) were used as an in vitro inflammation model to further clarify anti-inflammatory mechanisms of muscone. Muscone significantly downregulated the levels of LPS-induced inflammatory cytokines and inhibited NF-kappaB and NLRP3 inflammasome activation in BMDMs. Moreover, ROS and antioxidant indices in LPS-induced BMDMs were also ameliorated after muscone treatment. To sum up, our study found that muscone alleviated cardiac macrophage-mediated chronic inflammation by inhibiting NF-kappaB and NLRP3 inflammasome activation, thereby improving cardiac function in MI mice. Besides, the inhibitory effect of muscone on inflammation may be related to the scavenging of ROS. It is suggested that muscone may serve as a promising and effective drug for post-MI treatment. FAU - Du, Yingqiang AU - Du Y AD - Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University Nanjing, China. FAU - Gu, Xin AU - Gu X AD - Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University Nanjing, China. FAU - Meng, Haoyu AU - Meng H AD - Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University Nanjing, China. FAU - Aa, Nan AU - Aa N AD - Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University Nanjing, China. FAU - Liu, Shuiyuan AU - Liu S AD - Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University Nanjing, China. FAU - Peng, Chengyi AU - Peng C AD - Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University Nanjing, China. FAU - Ge, Yingbin AU - Ge Y AD - Department of Physiology, Nanjing Medical University Nanjing, China. FAU - Yang, Zhijian AU - Yang Z AD - Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University Nanjing, China. LA - eng PT - Journal Article DEP - 20181215 PL - United States TA - Am J Transl Res JT - American journal of translational research JID - 101493030 PMC - PMC6325512 OTO - NOTNLM OT - Muscone OT - NF-kappaB OT - NLRP3 inflammasome OT - anti-inflammation OT - macrophage OT - myocardial infarction COIS- None. EDAT- 2019/01/22 06:00 MHDA- 2019/01/22 06:01 PMCR- 2018/12/15 CRDT- 2019/01/22 06:00 PHST- 2018/08/28 00:00 [received] PHST- 2018/11/19 00:00 [accepted] PHST- 2019/01/22 06:00 [entrez] PHST- 2019/01/22 06:00 [pubmed] PHST- 2019/01/22 06:01 [medline] PHST- 2018/12/15 00:00 [pmc-release] PST - epublish SO - Am J Transl Res. 2018 Dec 15;10(12):4235-4246. eCollection 2018.