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Wu H, Dai Z, Liu X, Lin M, Gao Z, Tian F, Zhao X, Sun Y, Pu X. Pharmacodynamic Evaluation of Shenfu Injection in Rats With Ischemic Heart Failure and Its Effect on Small Molecules Using Matrix-Assisted Laser Desorption/Ionization-Mass Spectrometry Imaging. Front Pharmacol 2019; 10:1424. [PMID: 31849672 PMCID: PMC6889858 DOI: 10.3389/fphar.2019.01424] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 11/07/2019] [Indexed: 12/29/2022] Open
Abstract
Objectives: We aimed to evaluate the effect of Shenfu injection in a rat model of ischemic heart failure and explore its mechanism. Methods: A rat model of ischemic heart failure after myocardial infarction was established by ligating the left anterior descending coronary artery. Forty-eight hours after surgery, the rats were intraperitoneally administered Shenfu injection for 7 weeks. Then, left ventricular fractional shortening and left ventricular ejection fraction were measured using transthoracic echocardiography, whereas heart rate and left ventricular end-diastolic pressure were measured using a MD3000 biosignal acquisition and processing system. The hearts and lungs of the rats were excised and weighed to measure the heart and lung weight indexes. In addition, cardiac histopathological changes were observed via hematoxylin–eosin and Masson’s trichrome staining, and serum cardiac troponin content was detected using a cardiac troponin ELISA kit. Furthermore, matrix-assisted laser desorption/ionization–mass spectrometry imaging was used to detect the levels and distribution of small molecules in the hearts of rats with ischemic heart failure. Results: We found that Shenfu injection can significantly increase left ventricular fractional shortening and left ventricular ejection fraction in rats with ischemic heart failure and significantly reduce the left ventricular end-diastolic pressure, heart and lung weight indexes, and cardiac troponin content; improve cardiac tissue morphology; and reduce infarct size. In addition, the matrix-assisted laser desorption/ionization–mass spectrometry imaging results demonstrated that 22:6 phospholipids were predominately distributed in the non-infarct zone, whereas 20:4 phospholipids tended to concentrate in the infarct zone. Shenfu injection significantly reduced taurine, glutathione, and phospholipids levels in the hearts of rats with ischemic heart failure and primarily changed the distribution of these molecules in the non-infarct zone. Conclusion: Shenfu injection induced obvious myocardial protective effects in rats with ischemic heart failure by stimulating antioxidation and changing the phospholipid levels and distribution.
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Affiliation(s)
- Hao Wu
- National Key Research Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, China.,Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Zhenfeng Dai
- National Key Research Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, China.,Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Xi Liu
- National Key Research Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, China.,Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Ming Lin
- National Key Research Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, China.,Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Zeyu Gao
- National Key Research Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, China.,Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Fang Tian
- National Key Research Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, China.,Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Xin Zhao
- National Key Research Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, China.,Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Yi Sun
- National Key Research Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, China.,Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Xiaoping Pu
- National Key Research Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, China.,Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Sciences, Peking University, Beijing, China
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152
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da Silveira WA, Vazquez-Hidalgo E, Bartolotta E, Renaud L, Paolini P, Hardiman G. The effects of rosiglitazone on the neonatal rat cardiomyocyte transcriptome: a temporal analysis. Pharmacogenomics 2019; 20:1125-1141. [PMID: 31755367 PMCID: PMC7026769 DOI: 10.2217/pgs-2019-0077] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 09/17/2019] [Indexed: 11/21/2022] Open
Abstract
Aim: The objective was to determine via high-throughput RNA sequencing the temporal effects of rosiglitazone (Avandia®) on the neonatal rat ventricular myocyte transcriptome. Materials & methods: Neonatal rat ventricular myocytes (NRVMs) were exposed to rosiglitazone in vitro. Meta analyses utilized temporal comparisons of 0.5 h control versus 0.5 h treatment, 0.5 h treatment versus 24 h treatment and 24 h treatment versus 48 h treatment. Results: Time dependent responses were observed. At 0.5 h, the PI3K-AKT signaling pathway was impacted. At 24 h endoplasmic reticulum activity and protein degradation were altered. At 48 h, oxytocin signaling was perturbed. Conclusion: The effects of rosiglitazone occured early and increased in magnitude over time. A protective molecular response was triggered at 24 h and maintained until 48 h. In parallel, a response that can cause cardiac damage was activated. Our findings suggest that rosiglitazone has deleterious effects.
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Affiliation(s)
- Willian Abraham da Silveira
- Center for Genomic Medicine, Bioinformatics, Medical University of South Carolina, Charleston, SC, USA
- Faculty of Medicine, Health & Life Sciences, School of Biological Sciences, Institute for Global Food Security (IGFS), Belfast, Northern Ireland, UK
| | - Esteban Vazquez-Hidalgo
- Department of Biology, San Diego State University, San Diego, CA, USA
- Computational Science Research Center, San Diego State University, San Diego, CA, USA
| | - Elesha Bartolotta
- Department of Biology, San Diego State University, San Diego, CA, USA
| | - Ludivine Renaud
- Center for Genomic Medicine, Bioinformatics, Medical University of South Carolina, Charleston, SC, USA
- Department of Medicine, Medical University of South Carolina, Charleston, SC, USA
| | - Paul Paolini
- Department of Biology, San Diego State University, San Diego, CA, USA
- Computational Science Research Center, San Diego State University, San Diego, CA, USA
| | - Gary Hardiman
- Center for Genomic Medicine, Bioinformatics, Medical University of South Carolina, Charleston, SC, USA
- Faculty of Medicine, Health & Life Sciences, School of Biological Sciences, Institute for Global Food Security (IGFS), Belfast, Northern Ireland, UK
- Department of Medicine, Medical University of South Carolina, Charleston, SC, USA
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153
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Huang P, Fu J, Chen L, Ju C, Wu K, Liu H, Liu Y, Qi B, Qi B, Liu L. Redd1 protects against post‑infarction cardiac dysfunction by targeting apoptosis and autophagy. Int J Mol Med 2019; 44:2065-2076. [PMID: 31638187 PMCID: PMC6844599 DOI: 10.3892/ijmm.2019.4366] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Accepted: 09/06/2019] [Indexed: 12/13/2022] Open
Abstract
Post-infarction remodeling is accompanied and influenced by perturbations in the mammalian target of rapamycin (mTOR) signaling. Regulated in development and DNA damage response-1 (Redd1) has been reported to be involved in DNA repair and modulation of mTOR activity. However, little is known about the role of Redd1 in the heart. In the present study the potential contribution of Redd1 overex-pression to the chronic phase of heart failure after myocardial infarction (MI) was explored and the mechanisms underlying Redd1 actions were determined. Redd1 was downregulated in the mouse heart subjected to MI surgery. To determine the role of Redd1 in the process of MI, adeno-associated virus 9 mediated overexpression of Redd1 was used to enhance Redd1 content in cardiomyocytes. Redd1 overexpression improved left ventricular dysfunction and reduced the expansion index. Additionally, Redd1 overexpression resulted in suppressed myocardial apoptosis and improved autophagy. Furthermore, the studies revealed that Redd1 overexpression could inhibit the phosphorylation of mTOR and its downstream effectors P70/S6 kinase and 4EBP1. In conclusion, this study demonstrated that Redd1 overexpression protects against the development and persistence of heart failure post MI by reducing apoptosis and enhancing autophagy via the mTOR signaling pathway. The present study clearly demonstrated that Redd1 is a therapeutic target in the development of heart failure after MI.
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Affiliation(s)
- Pianpian Huang
- Department of Geriatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Jun Fu
- Department of Radiology, Wuhan No. 1 Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Long Chen
- Clinical Center for Human Genomic Research, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Chenhui Ju
- Clinical Center for Human Genomic Research, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Kefei Wu
- Department of Geriatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Hongxia Liu
- Department of Geriatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Yun Liu
- Department of Geriatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Benming Qi
- Department of Otorhinolaryngology, First People's Hospital of Yunnan Province, Kunming, Yunnan 650000, P.R. China
| | - Benling Qi
- Department of Geriatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Lihua Liu
- Department of Geriatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
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154
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Vringer E, Tait SWG. Mitochondria and Inflammation: Cell Death Heats Up. Front Cell Dev Biol 2019; 7:100. [PMID: 31316979 PMCID: PMC6610339 DOI: 10.3389/fcell.2019.00100] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 05/23/2019] [Indexed: 01/12/2023] Open
Abstract
Mitochondrial outer membrane permeabilization (MOMP) is essential to initiate mitochondrial apoptosis. Due to the disruption of mitochondrial outer membrane integrity, intermembrane space proteins, notably cytochrome c, are released into the cytosol whereupon they activate caspase proteases and apoptosis. Beyond its well-established apoptotic role, MOMP has recently been shown to display potent pro-inflammatory effects. These include mitochondrial DNA dependent activation of cGAS-STING signaling leading to a type I interferon response. Secondly, via an IAP-regulated mechanism, MOMP can engage pro-inflammatory NF-κB signaling. During cell death, apoptotic caspase activity inhibits mitochondrial dependent inflammation. Importantly, by engaging an immunogenic form of cell death, inhibiting caspase function can effectively inhibit tumorigenesis. Unexpectedly, these studies reveal mitochondria as inflammatory signaling hubs during cell death and demonstrate its potential for therapeutic exploitation.
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Affiliation(s)
- Esmee Vringer
- Cancer Research UK, Beatson Institute, Glasgow, United Kingdom.,Institute of Cancer Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Stephen W G Tait
- Cancer Research UK, Beatson Institute, Glasgow, United Kingdom.,Institute of Cancer Sciences, University of Glasgow, Glasgow, United Kingdom
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155
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Jia D, Hou L, Lv Y, Xi L, Tian Z. Postinfarction exercise training alleviates cardiac dysfunction and adverse remodeling via mitochondrial biogenesis and SIRT1/PGC-1α/PI3K/Akt signaling. J Cell Physiol 2019; 234:23705-23718. [PMID: 31187505 DOI: 10.1002/jcp.28939] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 05/22/2019] [Accepted: 05/23/2019] [Indexed: 12/12/2022]
Abstract
Exercise training mitigates cardiac pathological remodeling and dysfunction caused by myocardial infarction (MI), but its underlying cellular and molecular mechanisms remain elusive. Our present study in an in vivo rat model of MI determined the impact of post-MI exercise training on myocardial fibrosis, mitochondrial biogenesis, antioxidant capacity, and ventricular function. Adult male rats were randomized into: (a) Sedentary control group; (b) 4-week treadmill exercise training group; (c) Sham surgery group; (d) MI group with permanent ligation of left anterior descending coronary artery and kept sedentary during post-MI period; and (e) post-MI 4-week exercise training group. Results indicated that exercise training significantly improved post-MI left ventricular function and reduced markers of cardiac fibrosis. Exercise training also significantly attenuated MI-induced mitochondrial damage and oxidative stress, which were associated with enhanced antioxidant enzyme expression and/or activity and total antioxidant capacity in the heart. Interestingly, the adaptive activation of the SIRT1/PGC-1α/PI3K/Akt signaling following MI was further enhanced by post-MI exercise training, which is likely responsible for exercise-induced cardioprotection and mitochondrial biogenesis. In conclusion, this study has provided novel evidence on the activation of SIRT1/PGC-1α/PI3K/Akt pathway, which may mediate exercise-induced cardioprotection through reduction of cardiac fibrosis and oxidative stress, as well as improvement of mitochondrial integrity and biogenesis in post-MI myocardium.
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Affiliation(s)
- Dandan Jia
- Institute of Sports and Exercise Biology, School of Physical Education, Shaanxi Normal University, Xi'an, Shaanxi, China
| | - Lu Hou
- Institute of Sports and Exercise Biology, School of Physical Education, Shaanxi Normal University, Xi'an, Shaanxi, China
| | - Yongzhi Lv
- Institute of Sports and Exercise Biology, School of Physical Education, Shaanxi Normal University, Xi'an, Shaanxi, China
| | - Lei Xi
- Department of Internal Medicine, Pauley Heart Center, Virginia Commonwealth University, Richmond, Virginia
| | - Zhenjun Tian
- Institute of Sports and Exercise Biology, School of Physical Education, Shaanxi Normal University, Xi'an, Shaanxi, China
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156
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Xu S, Liu C, Xie F, Tian L, Manno SH, Manno FAM, Fallah S, Pelster B, Tse G, Cheng SH. Excessive inflammation impairs heart regeneration in zebrafish breakdance mutant after cryoinjury. FISH & SHELLFISH IMMUNOLOGY 2019; 89:117-126. [PMID: 30928664 DOI: 10.1016/j.fsi.2019.03.058] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 03/18/2019] [Accepted: 03/26/2019] [Indexed: 06/09/2023]
Abstract
Inflammation plays a crucial role in cardiac regeneration. Numerous advantages, including a robust regenerative ability, make the zebrafish a popular model to study cardiovascular diseases. The zebrafish breakdance (bre) mutant shares several key features with human long QT syndrome that predisposes to ventricular arrhythmias and sudden death. However, how inflammatory response and tissue regeneration following cardiac damage occur in bre mutant is unknown. Here, we have found that inflammatory response related genes were markedly expressed in the injured heart and excessive leukocyte accumulation occurred in the injured area of the bre mutant zebrafish. Furthermore, bre mutant zebrafish exhibited aberrant apoptosis and impaired heart regenerative ability after ventricular cryoinjury. Mild dosages of anti-inflammatory or prokinetic drugs protected regenerative cells from undergoing aberrant apoptosis and promoted heart regeneration in bre mutant zebrafish. We propose that immune or prokinetic therapy could be a potential therapeutic regimen for patients with genetic long QT syndrome who suffers from myocardial infarction.
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Affiliation(s)
- Shisan Xu
- Department of Biomedical Sciences, College of Veterinary Medicine and Life Science, City University of Hong Kong, Hong Kong SAR, PR China
| | - Chichi Liu
- Department of Biomedical Sciences, College of Veterinary Medicine and Life Science, City University of Hong Kong, Hong Kong SAR, PR China
| | - Fangjing Xie
- Department of Biomedical Sciences, College of Veterinary Medicine and Life Science, City University of Hong Kong, Hong Kong SAR, PR China
| | - Li Tian
- Department of Biomedical Sciences, College of Veterinary Medicine and Life Science, City University of Hong Kong, Hong Kong SAR, PR China
| | - Sinai Hc Manno
- Department of Biomedical Sciences, College of Veterinary Medicine and Life Science, City University of Hong Kong, Hong Kong SAR, PR China
| | - Francis A M Manno
- Department of Physics, College of Science and Engineering, City University of Hong Kong, Hong Kong SAR, PR China
| | - Samane Fallah
- Department of Biomedical Sciences, College of Veterinary Medicine and Life Science, City University of Hong Kong, Hong Kong SAR, PR China
| | - Bernd Pelster
- Institut für Zoologie, Universität Innsbruck, Center for Molecular Biosciences, Universität Innsbruck, Innsbruck, Austria.
| | - Gary Tse
- Department of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, PR China; Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, PR China; Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, PR China.
| | - Shuk Han Cheng
- Department of Biomedical Sciences, College of Veterinary Medicine and Life Science, City University of Hong Kong, Hong Kong SAR, PR China; State Key Laboratory of Marine Pollution (SKLMP) at City University of Hong Kong, Hong Kong SAR, PR China; Department of Materials Science and Engineering, College of Science and Engineering, City University of Hong Kong, Hong Kong SAR, PR China.
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157
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Different adaptive NO-dependent Mechanisms in Normal and Hypertensive Conditions. Molecules 2019; 24:molecules24091682. [PMID: 31052164 PMCID: PMC6539476 DOI: 10.3390/molecules24091682] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 04/23/2019] [Accepted: 04/26/2019] [Indexed: 02/06/2023] Open
Abstract
Myocardial infarction (MI) remains the leading cause of death worldwide. We aimed to investigate the effect of NO deficiency on selective biochemical parameters within discreet myocardial zones after experimentally induced MI. To induce MI, the left descending coronary artery was ligated in two groups of 16-week-old WKY rats. In one group, NO production was inhibited by L-NAME (20 mg/kg/day) administration four weeks prior to ligation. Sham operations were performed on both groups as a control. Seven days after MI, we evaluated levels of nitric oxide synthase (NOS) activity, eNOS, iNOS, NFҡB/p65 and Nrf2 in ischemic, injured and non-ischemic zones of the heart. Levels of circulating TNF-α and IL-6 were evaluated in the plasma. MI led to increased NOS activity in all investigated zones of myocardium as well as circulating levels of TNF-α and IL-6. L-NAME treatment decreased NOS activity in the heart of sham operated animals. eNOS expression was increased in the injured zone and this could be a compensatory mechanism that improves the perfusion of the myocardium and cardiac dysfunction. Conversely, iNOS expression increased in the infarcted zone and may contribute to the inflammatory process and irreversible necrotic changes.
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158
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The whole transcriptome and proteome changes in the early stage of myocardial infarction. Cell Death Discov 2019; 5:73. [PMID: 30854232 PMCID: PMC6399251 DOI: 10.1038/s41420-019-0152-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 02/10/2019] [Indexed: 12/31/2022] Open
Abstract
As the most severe manifestation of coronary artery disease, myocardial infarction (MI) is a complex and multifactorial pathophysiologic process. However, the pathogenesis that underlies MI remains unclear. Here, we generated a MI mouse model by ligation of the proximal left anterior descending coronary artery. The transcriptome and proteome, at different time points after MI, were detected and analysed. Immune-related pathways, cell cycle-related pathways, and extracellular matrix remodelling-related pathways were significantly increased after MI. Not only innate immune cells but also adaptive immune cells participated in the early stage of MI. Proteins that functioned in blood agglutination, fibrinolysis, secretion, and immunity were significantly changed after MI. Nppa, Serpina3n, and Anxa1, three secreted proteins that can easily be detected in blood, were significantly changed after MI. Our discoveries not only reveal the molecular and cellular changes in MI but also identify potential candidate biomarkers of MI for clinical diagnosis or treatment.
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159
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Zhao C, Zhang C, Xing Z, Ahmad Z, Li JS, Chang MW. Pharmacological effects of natural Ganoderma and its extracts on neurological diseases: A comprehensive review. Int J Biol Macromol 2019; 121:1160-1178. [DOI: 10.1016/j.ijbiomac.2018.10.076] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Revised: 10/06/2018] [Accepted: 10/14/2018] [Indexed: 01/13/2023]
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160
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Du Y, Gu X, Meng H, Aa N, Liu S, Peng C, Ge Y, Yang Z. Muscone improves cardiac function in mice after myocardial infarction by alleviating cardiac macrophage-mediated chronic inflammation through inhibition of NF-κB and NLRP3 inflammasome. Am J Transl Res 2018; 10:4235-4246. [PMID: 30662666 PMCID: PMC6325512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 11/19/2018] [Indexed: 06/09/2023]
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.
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Affiliation(s)
- Yingqiang Du
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical UniversityNanjing, China
| | - Xin Gu
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical UniversityNanjing, China
| | - Haoyu Meng
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical UniversityNanjing, China
| | - Nan Aa
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical UniversityNanjing, China
| | - Shuiyuan Liu
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical UniversityNanjing, China
| | - Chengyi Peng
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical UniversityNanjing, China
| | - Yingbin Ge
- Department of Physiology, Nanjing Medical UniversityNanjing, China
| | - Zhijian Yang
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical UniversityNanjing, China
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