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Muscone Improves Cardiac Function in Mice After Myocardial Infarction by Alleviating Cardiac Macrophage-Mediated Chronic Inflammation Through Inhibition of NF-κB and NLRP3 Inflammasome

Muscone Improves Cardiac Function in Mice After Myocardial Infarction by Alleviating Cardiac Macrophage-Mediated Chronic Inflammation Through Inhibition of NF-κB and NLRP3 Inflammasome

Yingqiang Du, Xin Gu, Haoyu Meng, Nan Aa, Shuiyuan Liu, Chengyi Peng, Yingbin Ge, Zhijian Yang

Am J Transl Res. 2018 Dec 15;10(12):4235-4246.

PMID: 30662666

Abstract:

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-1β, TNF-α 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-κB 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-κB 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.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP541913	Muscone		541-91-3	Price

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