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Li J, Xie Y, Zheng S, He H, Wang Z, Li X, Jiao S, Liu D, Yang F, Zhao H, Li P, Sun Y. Targeting autophagy in diabetic cardiomyopathy: From molecular mechanisms to pharmacotherapy. Biomed Pharmacother 2024; 175:116790. [PMID: 38776677 DOI: 10.1016/j.biopha.2024.116790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Revised: 05/13/2024] [Accepted: 05/17/2024] [Indexed: 05/25/2024] Open
Abstract
Diabetic cardiomyopathy (DCM) is a cardiac microvascular complication caused by metabolic disorders. It is characterized by myocardial remodeling and dysfunction. The pathogenesis of DCM is associated with abnormal cellular metabolism and organelle accumulation. Autophagy is thought to play a key role in the diabetic heart, and a growing body of research suggests that modulating autophagy may be a potential therapeutic strategy for DCM. Here, we have summarized the major signaling pathways involved in the regulation of autophagy in DCM, including Adenosine 5'-monophosphate-activated protein kinase (AMPK), mechanistic target of rapamycin (mTOR), Forkhead box subfamily O proteins (FOXOs), Sirtuins (SIRTs), and PTEN-inducible kinase 1 (PINK1)/Parkin. Given the significant role of autophagy in DCM, we further identified natural products and chemical drugs as regulators of autophagy in the treatment of DCM. This review may help to better understand the autophagy mechanism of drugs for DCM and promote their clinical application.
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Affiliation(s)
- Jie Li
- China-Japan Friendship Hospital (Institute of Clinical Medical Sciences), Beijing, China
| | - Yingying Xie
- Department of Cardiology, China-Japan Friendship Hospital (Institute of Clinical Medical Sciences), Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Shuwen Zheng
- Beijing University of Chinese Medicine School of Traditional Chinese Medicine, Beijing, China
| | - Haoming He
- Department of Cardiology, China-Japan Friendship Hospital (Institute of Clinical Medical Sciences), Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Zhe Wang
- Department of Cardiology, China-Japan Friendship Hospital (Institute of Clinical Medical Sciences), Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Xuexi Li
- Department of Cardiology, China-Japan Friendship Hospital (Institute of Clinical Medical Sciences), Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Siqi Jiao
- Peking University China-Japan Friendship School of Clinical Medicine, Beijing, China
| | - Dong Liu
- Peking University China-Japan Friendship School of Clinical Medicine, Beijing, China
| | - Furong Yang
- Beijing University of Chinese Medicine School of Traditional Chinese Medicine, Beijing, China
| | - Hailing Zhao
- Beijing Key Laboratory for Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, China.
| | - Ping Li
- Beijing Key Laboratory for Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, China.
| | - Yihong Sun
- Department of Cardiology, China-Japan Friendship Hospital (Institute of Clinical Medical Sciences), Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China; Peking University China-Japan Friendship School of Clinical Medicine, Beijing, China.
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2
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Yang C, Pan Q, Ji K, Tian Z, Zhou H, Li S, Luo C, Li J. Review on the protective mechanism of astragaloside IV against cardiovascular diseases. Front Pharmacol 2023; 14:1187910. [PMID: 37251311 PMCID: PMC10213926 DOI: 10.3389/fphar.2023.1187910] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 05/03/2023] [Indexed: 05/31/2023] Open
Abstract
Cardiovascular disease is a global health problem. Astragaloside IV (AS-IV) is a saponin compound extracted from the roots of the Chinese herb Astragalus. Over the past few decades, AS-IV has been shown to possess various pharmacological properties. It can protect the myocardium through antioxidative stress, anti-inflammatory effects, regulation of calcium homeostasis, improvement of myocardial energy metabolism, anti-apoptosis, anti-cardiomyocyte hypertrophy, anti-myocardial fibrosis, regulation of myocardial autophagy, and improvement of myocardial microcirculation. AS-IV exerts protective effects on blood vessels. For example, it can protect vascular endothelial cells through antioxidative stress and anti-inflammatory pathways, relax blood vessels, stabilize atherosclerotic plaques, and inhibit the proliferation and migration of vascular smooth muscle cells. Thus, the bioavailability of AS-IV is low. Toxicology indicates that AS-IV is safe, but should be used cautiously in pregnant women. In this paper, we review the mechanisms of AS-IV prevention and treatment of cardiovascular diseases in recent years to provide a reference for future research and drug development.
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Affiliation(s)
- Chunkun Yang
- Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Qingquan Pan
- Department of Emergency, Weifang Hospital of Traditional Chinese Medicine, Weifang, China
| | - Kui Ji
- Department of Emergency, Weifang Hospital of Traditional Chinese Medicine, Weifang, China
| | - Zhuang Tian
- Department of Emergency, Weifang Hospital of Traditional Chinese Medicine, Weifang, China
| | - Hongyuan Zhou
- Department of Emergency, Weifang Hospital of Traditional Chinese Medicine, Weifang, China
| | - Shuanghong Li
- Department of Emergency, Weifang Hospital of Traditional Chinese Medicine, Weifang, China
| | - Chuanchao Luo
- Department of Emergency, Weifang Hospital of Traditional Chinese Medicine, Weifang, China
| | - Jun Li
- Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
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3
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Tai H, Tong YJ, Yu R, Yu Y, Yao SC, Li LB, Liu Y, Cui XZ, Kuang JS, Meng XS, Jiang XL. A possible new activator of PI3K-Huayu Qutan Recipe alleviates mitochondrial apoptosis in obesity rats with acute myocardial infarction. J Cell Mol Med 2022; 26:3423-3445. [PMID: 35567290 PMCID: PMC9189350 DOI: 10.1111/jcmm.17353] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 03/22/2022] [Accepted: 03/31/2022] [Indexed: 01/20/2023] Open
Abstract
Obesity, which has unknown pathogenesis, can increase the frequency and seriousness of acute myocardial infarction (AMI). This study evaluated effect of Huayu Qutan Recipe (HQR) pretreatment on myocardial apoptosis induced by AMI by regulating mitochondrial function via PI3K/Akt/Bad pathway in rats with obesity. For in vivo experiments, 60 male rats were randomly divided into 6 groups: sham group, AMI group, AMI (obese) group, 4.5, 9.0 and 18.0 g/kg/d HQR groups. The models fed on HQR with different concentrations for 2 weeks before AMI. For in vitro experiments, the cardiomyocytes line (H9c2) was used. Cells were pretreated with palmitic acid (PA) for 24 h, then to build hypoxia model followed by HQR‐containing serum for 24 h. Related indicators were also detected. In vivo, HQR can lessen pathohistological damage and apoptosis after AMI. In addition, HQR improves blood fat levels, cardiac function, inflammatory factor, the balance of oxidation and antioxidation, as well as lessen infarction in rats with obesity after AMI. Meanwhile, HQR can diminish myocardial cell death by improving mitochondrial function via PI3K/Akt/Bad pathway activation. In vitro, HQR inhibited H9c2 cells apoptosis, improved mitochondrial function and activated the PI3K/Akt/Bad pathway, but effects can be peripeteiad by LY294002. Myocardial mitochondrial dysfunction occurs following AMI and can lead to myocardial apoptosis, which can be aggravated by obesity. HQR can relieve myocardial apoptosis by improving mitochondrial function via the PI3K/Akt/Bad pathway in rats with obesity.
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Affiliation(s)
- He Tai
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, China.,Department of Internal Medicine, Liaoning Provincial Corps Hospital of Chinese People's Armed Police Forces, Shenyang, China
| | - Yu-Jing Tong
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Rui Yu
- Science and Technology Branch, Liaoning University of Traditional Chinese Medicine, Shenyang, China
| | - You Yu
- Key Laboratory of Ministry of Education for Traditional Chinese Medicine Viscera-State Theory and Applications, Liaoning University of Traditional Chinese Medicine, Shenyang, China
| | - Si-Cheng Yao
- Key Laboratory of Ministry of Education for Traditional Chinese Medicine Viscera-State Theory and Applications, Liaoning University of Traditional Chinese Medicine, Shenyang, China
| | - Ling-Bing Li
- Department of Graduate School, China PLA General Hospital, Beijing, China
| | - Ye Liu
- Third Affiliated Hospital of Beijing University of Chinese Medicine, Beijing, China
| | - Xiao-Zheng Cui
- Cardiovascular Surgery, School of Clinical Medicine, Beijing Tsinghua Changgung Hospital, Tsinghua University, Beijing, China
| | - Jin-Song Kuang
- Department of Endocrinology and Metabolism, The Fourth People's Hospital of Shenyang, Shenyang, China
| | - Xian-Sheng Meng
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, China
| | - Xiao-Lin Jiang
- Key Laboratory of Ministry of Education for Traditional Chinese Medicine Viscera-State Theory and Applications, Liaoning University of Traditional Chinese Medicine, Shenyang, China.,Nephrology Laboratory, The fourth of Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine (Shenzhen Traditional Chinese Medicine Hospital), Guangzhou University of Traditional Chinese Medicine, Shenzhen, China
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4
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Wang A, Zhao W, Yan K, Huang P, Zhang H, Zhang Z, Zhang D, Ma X. Mechanisms and Efficacy of Traditional Chinese Medicine in Heart Failure. Front Pharmacol 2022; 13:810587. [PMID: 35281941 PMCID: PMC8908244 DOI: 10.3389/fphar.2022.810587] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Accepted: 01/24/2022] [Indexed: 12/11/2022] Open
Abstract
Heart failure (HF) is one of the main public health problems at present. Although some breakthroughs have been made in the treatment of HF, the mortality rate remains very high. However, we should also pay attention to improving the quality of life of patients with HF. Traditional Chinese medicine (TCM) has a long history of being used to treat HF. To demonstrate the clinical effects and mechanisms of TCM, we searched published clinical trial studies and basic studies. The search results showed that adjuvant therapy with TCM might benefit patients with HF, and its mechanism may be related to microvascular circulation, myocardial energy metabolism, oxidative stress, and inflammation.
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Affiliation(s)
- Anzhu Wang
- Graduate School, China Academy of Chinese Medical Sciences, Beijing, China.,Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Wei Zhao
- Yidu Central Hospital of Weifang, Weifang, China
| | - Kaituo Yan
- Yidu Central Hospital of Weifang, Weifang, China
| | - Pingping Huang
- Graduate School, China Academy of Chinese Medical Sciences, Beijing, China.,Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Hongwei Zhang
- Graduate School, China Academy of Chinese Medical Sciences, Beijing, China.,Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Zhibo Zhang
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China.,Xiyuan Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Dawu Zhang
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China.,National Clinical Research Center for Chinese Medicine Cardiology, Beijing, China
| | - Xiaochang Ma
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China.,National Clinical Research Center for Chinese Medicine Cardiology, Beijing, China
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5
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Zhang W, Zhang L, Zhou H, Li C, Shao C, He Y, Yang J, Wan H. Astragaloside IV Alleviates Infarction Induced Cardiomyocyte Injury by Improving Mitochondrial Morphology and Function. Front Cardiovasc Med 2022; 9:810541. [PMID: 35265681 PMCID: PMC8899080 DOI: 10.3389/fcvm.2022.810541] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Accepted: 01/31/2022] [Indexed: 11/13/2022] Open
Abstract
The protective effect of astragaloside IV (AS-IV) on myocardial injury after myocardial infarction has been reported. However, the underlying mechanism is still largely unknown. We established a myocardial infarction model in C57BL/6 mice and injected intraperitoneally with 10 mg/kg/d AS-IV for 4 weeks. The cardiac function, myocardial fibrosis, and angiogenesis were investigated by echocardiography, Masson's trichrome staining, and CD31 and smooth muscle actin staining, respectively. Cardiac mitochondrial morphology was visualized by transmission electron microscopy. Cardiac function, infarct size, vascular distribution, and mitochondrial morphology were significantly better in AS-IV-treated mice than in the myocardial infarction model mice. In vitro, a hypoxia-induced H9c2 cell model was established to observe cellular apoptosis and mitochondrial function. H9c2 cells transfected with silent information regulator 3 (Sirt3) targeting siRNA were assayed for Sirt3 expression and activity. Sirt3 silencing eliminated the beneficial effects of AS-IV and abrogated the inhibitory effect of AS-IV on mitochondrial division. These results suggest that AS-IV protects cardiomyocytes from hypoxic injury by maintaining mitochondrial homeostasis in a Sirt3-dependent manner.
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Affiliation(s)
- Wen Zhang
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Ling Zhang
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Huifen Zhou
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Chang Li
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Chongyu Shao
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yu He
- College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, China
- Yu He
| | - Jiehong Yang
- College of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
- Jiehong Yang
| | - Haitong Wan
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
- *Correspondence: Haitong Wan
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6
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Lee GS, Jeong HY, Yang HG, Seo YR, Jung EG, Lee YS, Nam KW, Kim WJ. Astragaloside IV Suppresses Hepatic Proliferation in Regenerating Rat Liver after 70% Partial Hepatectomy via Down-Regulation of Cell Cycle Pathway and DNA Replication. Molecules 2021; 26:2895. [PMID: 34068164 PMCID: PMC8152973 DOI: 10.3390/molecules26102895] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 05/06/2021] [Accepted: 05/11/2021] [Indexed: 12/13/2022] Open
Abstract
Astragaloside IV (AS-IV) is one of the major bio-active ingredients of huang qi which is the dried root of Astragalus membranaceus (a traditional Chinese medicinal plant). The pharmacological effects of AS-IV, including anti-oxidative, anti-cancer, and anti-diabetic effects have been actively studied, however, the effects of AS-IV on liver regeneration have not yet been fully described. Thus, the aim of this study was to explore the effects of AS-IV on regenerating liver after 70% partial hepatectomy (PHx) in rats. Differentially expressed mRNAs, proliferative marker and growth factors were analyzed. AS-IV (10 mg/kg) was administrated orally 2 h before surgery. We found 20 core genes showed effects of AS-IV, many of which were involved with functions related to DNA replication during cell division. AS-IV down-regulates MAPK signaling, PI3/Akt signaling, and cell cycle pathway. Hepatocyte growth factor (HGF) and cyclin D1 expression were also decreased by AS-IV administration. Transforming growth factor β1 (TGFβ1, growth regulation signal) was slightly increased. In short, AS-IV down-regulated proliferative signals and genes related to DNA replication. In conclusion, AS-IV showed anti-proliferative activity in regenerating liver tissue after 70% PHx.
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Affiliation(s)
- Gyeong-Seok Lee
- Department of Life Science and Biotechnology, College of Natural Sciences, Soonchunhyang University, Asan 31538, Chungcheongnam-do, Korea; (G.-S.L.); (H.-Y.J.); (Y.-R.S.); (Y.-S.L.); (K.-W.N.)
| | - Hee-Yeon Jeong
- Department of Life Science and Biotechnology, College of Natural Sciences, Soonchunhyang University, Asan 31538, Chungcheongnam-do, Korea; (G.-S.L.); (H.-Y.J.); (Y.-R.S.); (Y.-S.L.); (K.-W.N.)
| | - Hyeon-Gung Yang
- Soonchunhyang Institute of Medi-bio Science (SIMS), Soonchunhyang University, Cheonan 31151, Chungcheongnam-do, Korea;
| | - Young-Ran Seo
- Department of Life Science and Biotechnology, College of Natural Sciences, Soonchunhyang University, Asan 31538, Chungcheongnam-do, Korea; (G.-S.L.); (H.-Y.J.); (Y.-R.S.); (Y.-S.L.); (K.-W.N.)
| | - Eui-Gil Jung
- Seoul Center, Korea Basic Science Institute, Seoul 02855, Korea;
| | - Yong-Seok Lee
- Department of Life Science and Biotechnology, College of Natural Sciences, Soonchunhyang University, Asan 31538, Chungcheongnam-do, Korea; (G.-S.L.); (H.-Y.J.); (Y.-R.S.); (Y.-S.L.); (K.-W.N.)
| | - Kung-Woo Nam
- Department of Life Science and Biotechnology, College of Natural Sciences, Soonchunhyang University, Asan 31538, Chungcheongnam-do, Korea; (G.-S.L.); (H.-Y.J.); (Y.-R.S.); (Y.-S.L.); (K.-W.N.)
| | - Wan-Jong Kim
- Department of Life Science and Biotechnology, College of Natural Sciences, Soonchunhyang University, Asan 31538, Chungcheongnam-do, Korea; (G.-S.L.); (H.-Y.J.); (Y.-R.S.); (Y.-S.L.); (K.-W.N.)
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Neuroprotection Effect of Astragaloside IV from 2-DG-Induced Endoplasmic Reticulum Stress. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:9782062. [PMID: 33488941 PMCID: PMC7790552 DOI: 10.1155/2020/9782062] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 11/15/2020] [Accepted: 12/12/2020] [Indexed: 02/06/2023]
Abstract
Objective Astragaloside IV shows neuroprotective activity, but its mechanism remains unclear. To investigate whether astragaloside IV protects from endoplasmic reticulum stress (ERS), we focus on the regulation of glycogen synthase kinase-3β (GSK-3β) and mitochondrial permeability transition pore (mPTP) by astragaloside IV in neuronal cell PC12. Methods and Results PC12 cells treated with different concentrations of ERS inductor 2-deoxyglucose (2-DG) (25-500 μM) showed a significant increase of glucose-regulated protein 78 (GRP 78) and GRP 94 expressions and a decrease of tetramethylrhodamine ethyl ester (TMRE) fluorescence intensity and mitochondrial membrane potential (∆Ψm), with the peak effect seen at 50 μM, indicating that 2-DG induces ERS and the mPTP opening. Similarly, 50 μM of astragaloside IV increased the GSK-3β phosphorylation at Ser9 most significantly. Next, we examined the neuroprotection of astragaloside IV by dividing the PC12 cells into control group, 2-DG treatment group, astragaloside IV plus 2-DG treatment group, and astragaloside IV only group. PC12 cells treated with 50 μM 2-DG for different time courses (0-36 hr) showed a significant increase of Cleaved-Caspase-3 with the peak at 6 hr. 2-DG significantly induced cell apoptosis and increased the green fluorescence intensity of Annexin V-FITC, and these effects were reversed by astragaloside IV. Such a result indicates that astragaloside IV protected neural cell survival from ERS. 2-DG treatment significantly increased the expressions of inositol-requiring ER-to-nucleus signal kinase 1 (IRE1), phosphor-protein kinase R-like ER kinase (p-PERK), but not affect the transcription factor 6 (ATF6) expression. 2-DG treatment significantly decreased the phosphorylation of GSK-3β and significantly reduced the TMRE fluorescence intensity and ∆Ψm, following mPTP open. Astragaloside IV significantly inhibited the above effects caused by 2-DG, except the upregulation of ATF6 protein. Taken together, astragaloside IV significantly inhibited the ERS caused by 2-DG. Conclusion Our data suggested that astragaloside IV protects PC12 cells from ERS by inactivation of GSK-3β and preventing the mPTP opening. The GRP 78, GRP 94, IRE1, and PERK signaling pathways but not ATF6 are responsible for GSK-3β inactivation and neuroprotection by astragaloside IV.
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Chang X, Zhang W, Zhao Z, Ma C, Zhang T, Meng Q, Yan P, Zhang L, Zhao Y. Regulation of Mitochondrial Quality Control by Natural Drugs in the Treatment of Cardiovascular Diseases: Potential and Advantages. Front Cell Dev Biol 2020; 8:616139. [PMID: 33425924 PMCID: PMC7793684 DOI: 10.3389/fcell.2020.616139] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Accepted: 11/18/2020] [Indexed: 12/13/2022] Open
Abstract
Mitochondria are double-membraned cellular organelles that provide the required energy and metabolic intermediates to cardiomyocytes. Mitochondrial respiratory chain defects, structure abnormalities, and DNA mutations can affect the normal function of cardiomyocytes, causing an imbalance in intracellular calcium ion homeostasis, production of reactive oxygen species, and apoptosis. Mitochondrial quality control (MQC) is an important process that maintains mitochondrial homeostasis in cardiomyocytes and involves multi-level regulatory mechanisms, such as mitophagy, mitochondrial fission and fusion, mitochondrial energy metabolism, mitochondrial antioxidant system, and mitochondrial respiratory chain. Furthermore, MQC plays a role in the pathological mechanisms of various cardiovascular diseases (CVDs). In recent years, the regulatory effects of natural plants, drugs, and active ingredients on MQC in the context of CVDs have received significant attention. Effective active ingredients in natural drugs can influence the production of energy-supplying substances in the mitochondria, interfere with the expression of genes associated with mitochondrial energy requirements, and regulate various mechanisms of MQC modulation. Thus, these ingredients have therapeutic effects against CVDs. This review provides useful information about novel treatment options for CVDs and development of novel drugs targeting MQC.
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Affiliation(s)
- Xing Chang
- China Academy of Chinese Medical Sciences, Beijing, China.,Guang'anmen Hospital of Chinese Academy of Traditional Chinese Medicine, Beijing, China
| | - Wenjin Zhang
- China Academy of Chinese Medical Sciences, Beijing, China.,College of Pharmacy, Ningxia Medical University, Yinchuan, China
| | - Zhenyu Zhao
- China Academy of Chinese Medical Sciences, Beijing, China
| | - Chunxia Ma
- Shandong Analysis and Test Center, Qilu University of Technology, Jinan, China
| | - Tian Zhang
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Qingyan Meng
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Peizheng Yan
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Lei Zhang
- Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Yuping Zhao
- China Academy of Chinese Medical Sciences, Beijing, China
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Protective Effect of Astragaloside IV on High Glucose-Induced Endothelial Dysfunction via Inhibition of P2X7R Dependent P38 MAPK Signaling Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:5070415. [PMID: 33014270 PMCID: PMC7512101 DOI: 10.1155/2020/5070415] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 08/10/2020] [Accepted: 08/31/2020] [Indexed: 12/14/2022]
Abstract
Vascular endothelial dysfunction is associated with increased mortality in patients with diabetes. Astragaloside IV (As-IV) is a bioactive saponin with therapeutic potential as an anti-inflammatory and antiendothelial dysfunction. However, the underlying mechanism for how As-IV ameliorated endothelial dysfunction is still unclear. Therefore, in this study, we examined the protective effect of As-IV against endothelial dysfunction and explored potential molecular biology mechanism. In vivo, rats were intraperitoneally injected with streptozotocin (STZ) at a dose of 65 mg/kg body weight to establish a diabetic model. In vitro studies, rat aortic endothelial cells (RAOEC) were pretreated with As-IV, SB203580 (p38 MAPK inhibitor) for 2 h prior to the addition of high glucose (33 mM glucose). Our findings indicated that As-IV improved impaired endothelium-dependent relaxation and increased the levels of endothelial NO synthase (eNOS) and nitric oxide (NO) both in vivo and in vitro. Besides, As-IV treatment inhibited the elevated inflammation and oxidative stress in diabetic model both in vivo and in vitro. Moreover, As-IV administration reversed the upregulated expression of P2X7R and p-p38 MAPK in vivo and in vitro. Additionally, the effects of both P2X7R siRNA and SB203580 on endothelial cells were similar to As-IV. Collectively, our study demonstrated that As-IV rescued endothelial dysfunction induced by high glucose via inhibition of P2X7R dependent p38 MAPK signaling pathway. This provides a theoretical basis for the further study of the vascular endothelial protective effects of As-IV.
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Chen JK, Guo MK, Bai XH, Chen LQ, Su SM, Li L, Li JQ. Astragaloside IV ameliorates intermittent hypoxia-induced inflammatory dysfunction by suppressing MAPK/NF-κB signalling pathways in Beas-2B cells. Sleep Breath 2020; 24:1237-1245. [PMID: 31907823 DOI: 10.1007/s11325-019-01947-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 09/12/2019] [Accepted: 09/18/2019] [Indexed: 11/28/2022]
Abstract
PURPOSE Intermittent hypoxia is a characteristic pathological change in obstructive sleep apnoea (OSA) that can initiate oxidative stress reaction and pro-inflammatory cytokine release. The purpose of this study was to assess the effect and protective mechanism of Astragaloside IV (AS-IV) in intermittent hypoxia-induced human lung epithelial Beas-2B cells. METHODS Human lung epithelial Beas-2B cells were exposed to intermittent hypoxia or normoxia in the absence or presence of AS-IV. MTT assay was performed to determine the cell viability. The levels of reactive oxygen species (ROS), lactate dehydrogenase (LDH), malonaldehyde (MDA), and superoxide dismutase (SOD) were measured to evaluate oxidative stress. The levels of cytokines interleukin (IL)-8, IL-1β, and IL-6 were evaluated by enzyme-linked immunosorbent assay and real-time PCR. The expression of Toll-like receptor 4 (TLR4), mitogen-activated protein kinase (MAPK), and nuclear transcription factor-kappa B (NF-κB) signalling pathways was analysed by western blot. RESULTS The results showed that AS-IV significantly reduced the levels of ROS, LDH, MDA, IL-8, IL-1β, and IL-6, and increased the level of SOD in intermittent hypoxia-induced Beas-2B cells. It also suppressed the phosphorylation of MAPKs, including P38, c-Jun N-terminal kinase and extracellular signal-regulated kinase, and inhibited the activation of the NF-κB signalling pathway by reducing the phosphorylation of IκBα and p65. CONCLUSIONS AS-IV attenuates inflammation and oxidative stress by inhibiting TLR4-mediated MAPK/NF-κB signalling pathways in intermittent hypoxia-induced Beas-2B cells.
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Affiliation(s)
- Jian-Kun Chen
- The Second Clinical College, Guangzhou University of Chinese Medicine, Guangzhou, 510120, China
- The Third Comprehensive Department, The Second Affiliated Hospital, Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou, 510120, China
| | - Ming-Kai Guo
- The Second Clinical College, Guangzhou University of Chinese Medicine, Guangzhou, 510120, China
- The Third Comprehensive Department, The Second Affiliated Hospital, Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou, 510120, China
| | - Xiao-Hui Bai
- The Second Clinical College, Guangzhou University of Chinese Medicine, Guangzhou, 510120, China
- The Third Comprehensive Department, The Second Affiliated Hospital, Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou, 510120, China
| | - Li-Qin Chen
- The Second Clinical College, Guangzhou University of Chinese Medicine, Guangzhou, 510120, China
- The Third Comprehensive Department, The Second Affiliated Hospital, Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou, 510120, China
| | - Shun-Mei Su
- The Second Clinical College, Guangzhou University of Chinese Medicine, Guangzhou, 510120, China
- The Third Comprehensive Department, The Second Affiliated Hospital, Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou, 510120, China
| | - Li Li
- The First Respiratory Department, The First People's Hospital of Kashi, Xinjiang, 844000, China.
| | - Ji-Qiang Li
- The Second Clinical College, Guangzhou University of Chinese Medicine, Guangzhou, 510120, China.
- The Third Comprehensive Department, The Second Affiliated Hospital, Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou, 510120, China.
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An updated role of astragaloside IV in heart failure. Biomed Pharmacother 2020; 126:110012. [DOI: 10.1016/j.biopha.2020.110012] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 02/03/2020] [Accepted: 02/12/2020] [Indexed: 02/07/2023] Open
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Jiang S, Jiao G, Chen Y, Han M, Wang X, Liu W. Astragaloside IV attenuates chronic intermittent hypoxia-induced myocardial injury by modulating Ca 2+ homeostasis. Cell Biochem Funct 2020; 38:710-720. [PMID: 32306464 DOI: 10.1002/cbf.3538] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 03/12/2020] [Accepted: 03/29/2020] [Indexed: 12/16/2022]
Abstract
Obstructive sleep apnea syndrome (OSAS) is an important consequence of chronic intermittent hypoxia (CIH). Astragaloside IV (AS-IV) exerts multiple protective effects in diverse diseases. However, whether AS-IV can attenuate CIH-induced myocardial injury is unclear. In this study, rats exposed to CIH were established and treated with AS-IV for 4 weeks. In vitro, H9C2 cardiomyocytes subjected to CIH exposure were treated with AS-IV for 48 hours. Then the cardiac function, morphology, fibrosis, apoptosis and Ca2+ homeostasis were determined to assess cardiac damage. Results showed that AS-IV attenuated cardiac dysfunction and histological lesions in CIH rats. The increased TUNEL-positive cells and activated apoptotic proteins in CIH rats were reduced by AS-IV. We also noticed that AS-IV reversed the accumulation of Ca2+ and altered expressions of Ca2+ handling proteins (decreases of SERCA2a and RYR2, and increases of p-CaMKII and NCX1) under CIH exposure. Furthermore, CIH-induced reduction of SERCA2a activity was increased by AS-IV in rats. Similar results were also observed in H9C2 cells. Altogether, these findings indicate that AS-IV modulates Ca2+ homeostasis to inhibit apoptosis, protecting against CIH-induced myocardial injury eventually, suggesting it may be a potential agent for cardiac damage of OSAS patients. SIGNIFICANCE OF THE STUDY: Chronic intermittent hypoxia (CIH) is a great contributor of OSAS, which is closely associated with cardiovascular diseases. It is necessary for developing a promising drug to attenuate CIH-induced myocardial injury. This work suggests that AS-IV can attenuate myocardial apoptosis and calcium disruption, thus protecting against CIH-induced myocardial injury. It may represent a novel therapeutic for cardiac damage of OSAS.
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Affiliation(s)
- Shan Jiang
- Department of Pulmonary and Critical Care Medicine, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Guangyu Jiao
- Department of Pulmonary and Critical Care Medicine, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Yunqiu Chen
- Department of Pulmonary and Critical Care Medicine, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Mingxin Han
- Department of Pulmonary and Critical Care Medicine, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Xinzhuo Wang
- Department of Pulmonary and Critical Care Medicine, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Wenjuan Liu
- Department of Pulmonary and Critical Care Medicine, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
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Zhu Y, Qian X, Li J, Lin X, Luo J, Huang J, Jin Z. Astragaloside-IV protects H9C2(2-1) cardiomyocytes from high glucose-induced injury via miR-34a-mediated autophagy pathway. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2020; 47:4172-4181. [PMID: 31713440 DOI: 10.1080/21691401.2019.1687492] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Diabetic cardiomyopathy (DCM) is an important cardiac disorder in patients with diabetes. High glucose (HG) levels lead to inflammation of cardiomyocytes, oxidative stress, and long-term activation of autophagy, resulting in myocardial fibrosis and remodelling. Astragaloside-IV (AS-IV) has a wide range of pharmacological effects. This study aimed to investigate the effects of AS-IV on injury induced by HG in rat cardiomyocytes (H9C2(2-1)) and the involvement of the miR-34a-mediated autophagy pathway. An AS-IV concentration of 100 μM was selected based on H9C2(2-1) cell viability using the cell counting kit-8 (CCK-8). We found that 33 mM HG induced a morphologic change in cells and caused excessive oxidative stress, whereas AS-IV inhibited lipid peroxidation and increased superoxide dismutase activity. In terms of mRNA expression, HG increased miR-34a and inhibited Bcl2 and Sirt1, whereas AS-IV and miR-34a-inhibitor reversed the above effects. Further, LC3-GFP adenovirus infection and western blotting showed that HG increased autophagy, which was reversed synergistically by AS-IV and miR-34a-inhibitor. Bcl2 and pAKT/AKT protein expressions in the HG group was significantly lower than that in controls, but AS-IV and miR-34a-inhibitor antagonized the process. Thus, AS-IV inhibits HG-induced oxidative stress and autophagy and protects cardiomyocytes from injury via the miR-34a/Bcl2/(LC3II/LC3I) and pAKT/Bcl2/(LC3II/LC3I) pathways.
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Affiliation(s)
- Yaobin Zhu
- Department of Traditional Chinese Medicine, The First Affiliated Hospital, Fujian Medical University, Fuzhou, P. R. China
| | - Xin Qian
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, P. R. China
| | - Jingjing Li
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, P. R. China
| | - Xing Lin
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, P. R. China
| | - Jiewei Luo
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, P. R. China.,Department of Traditional Chinese Medicine, Fujian Provincial Hospital, Fuzhou, P. R. China
| | - Jianbin Huang
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, P. R. China
| | - Zhao Jin
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, P. R. China
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Zhang R, Xing B, Zhao J, Zhang X, Zhou L, Yang S, Wang Y, Yang F. Astragaloside IV relieves gestational diabetes mellitus in genetic mice through reducing hepatic gluconeogenesis. Can J Physiol Pharmacol 2020; 98:466-472. [PMID: 32160476 DOI: 10.1139/cjpp-2019-0548] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The glucose intolerance developed during pregnancy is called gestational diabetes mellitus (GDM). GDM has become a severe risk for the health of both mother and baby. Astragaloside IV (AS-IV) is the dominant active component in Astragalus membranaceus and has been reported to have anti-inflammation and immune-regulation function. We aimed to demonstrate the function of AS-IV in the therapy of GDM and the molecular mechanism in this process. C57BL/KsJ-Lepdb/+ female mice were used as the GDM model. The mRNA levels of relative genes in this research were detected by quantitative real-time PCR. The protein levels of relative genes were analyzed by Western blot. Serum lipid level was measured with an ILab Chemistry Analyzer 300 PLUS. Glucose, insulin, and lipid profile levels in the GDM mice model were decreased by AS-IV treatment. AS-IV downregulated the expression of inflammatory genes and upregulated the expressions of anti-oxidant genes in the GDM mice model. AS-IV treatment reduced cAMP accumulation in liver and reduced hepatic gluconeogenesis in GDM mice. This study demonstrated that AS-IV treatment has an effective therapeutic function of GDM in a mice model through the regulation of cAMP accumulation and hepatic gluconeogenesis.
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Affiliation(s)
- Ruixue Zhang
- Cangzhou Central Hospital, No. 16 Xinhua West Road, Cangzhou 061000, Hebei, China
| | - Baoheng Xing
- Cangzhou Central Hospital, No. 16 Xinhua West Road, Cangzhou 061000, Hebei, China
| | - Jianyong Zhao
- Cangzhou Hospital of Integrated TCM-WM·HEBEI, No. 31 Huanghe Road, Cangzhou 061000, Hebei, China
| | - Xuelei Zhang
- Cangzhou Hospital of Integrated TCM-WM·HEBEI, No. 31 Huanghe Road, Cangzhou 061000, Hebei, China
| | - Ling Zhou
- Cangzhou Central Hospital, No. 16 Xinhua West Road, Cangzhou 061000, Hebei, China
| | - Shuangyan Yang
- Cangzhou Central Hospital, No. 16 Xinhua West Road, Cangzhou 061000, Hebei, China
| | - Yong Wang
- Cangzhou Central Hospital, No. 16 Xinhua West Road, Cangzhou 061000, Hebei, China
| | - Fengzhen Yang
- Cangzhou Central Hospital, No. 16 Xinhua West Road, Cangzhou 061000, Hebei, China
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Qin S, Yin J, Huang S, Lin J, Fang Z, Zhou Y, Huang K. Astragaloside IV Protects Ethanol-Induced Gastric Mucosal Injury by Preventing Mitochondrial Oxidative Stress and the Activation of Mitochondrial Pathway Apoptosis in Rats. Front Pharmacol 2019; 10:894. [PMID: 31474858 PMCID: PMC6704233 DOI: 10.3389/fphar.2019.00894] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 07/16/2019] [Indexed: 12/12/2022] Open
Abstract
Alcohol consumption affects gastric mucosa by multiple and complex mechanisms depending either by direct contact of ethanol or by indirect biological damage induced by its metabolite acetaldehyde. The present study aims at further investigating the mechanism of ethanol-induced gastric mucosa injury and the protective effect of astragaloside IV (AS-IV) in an aspect of mitochondrial oxidative stress and mitochondrial pathway of apoptosis. Using an array of experimental approaches, we have shown that the development of mitochondrial oxidative stress and associated apoptosis play crucial roles in the pathogenesis of gastric injury induced by ethanol. AS-IV inhibits mitochondrial oxidative stress by scavenging accumulation of malondialdehyde and decreasing the consumption of glutathione. AS-IV also prevents ethanol-induced apoptosis by modulating the activity of caspase-3 and caspase-9, the expression of Bax/Bcl-2, and the release of cytochrome C and apoptosis inducing factor. Moreover, AS-IV reduces ethanol-mediated activation of caspase-8 and breakage of Bid. This study thus indicates that AS-IV prevented ethanol-induced gastric damage by blocking activation of mitochondrial oxidative stress and mitochondrial pathway of apoptosis induced by ethanol in the gastric mucosa.
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Affiliation(s)
- Shumin Qin
- Department of Gastroenterology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jinjin Yin
- Department of Pharmacy, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Shaogang Huang
- Department of Gastroenterology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jingyu Lin
- Fujian Provincial Institute of Traditional Chinese Medicin, Fuzhou, China
| | - Zhigang Fang
- The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yunsong Zhou
- The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Keer Huang
- The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
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Astragaloside IV Attenuates Myocardial Ischemia-Reperfusion Injury from Oxidative Stress by Regulating Succinate, Lysophospholipid Metabolism, and ROS Scavenging System. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:9137654. [PMID: 31341538 PMCID: PMC6612991 DOI: 10.1155/2019/9137654] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 02/24/2019] [Accepted: 03/24/2019] [Indexed: 12/30/2022]
Abstract
Astragaloside IV is one of the main active ingredients isolated from Astragalus membranaceus. Here we confirmed its protective effect against cardiac ischemia-reperfusion (I/R) injury and aimed to investigate the potential molecular mechanisms involved. Pretreatment of ex vivo and in vivo I/R-induced rat models by astragaloside IV significantly prevented the ratio of myocardium infarct size, systolic and diastolic dysfunction, and the production of creatine kinase and lactate dehydrogenase. Metabolic analyses showed that I/R injury caused a notable reduction of succinate and elevation of lysophospholipids, indicating excessive reactive oxygen species (ROS) generation driven by succinate's rapid reoxidization and glycerophospholipid degradation. Molecular validation mechanistically revealed that astragaloside IV stimulated nuclear factor (erythroid-derived 2)-like 2 (Nrf2) released from Kelch-like ECH-associated protein 1 (Keap1) and translocated to the nucleus to combine with musculoaponeurotic fibrosarcoma (Maf) to initiate the transcription of antioxidative gene heme oxygenase-1 (HO-1), which performed a wide range of ROS scavenging processes against pathological oxidative stress in the hearts. As expected, increasing succinate and decreasing lysophospholipid levels were observed in the astragaloside IV-pretreated group compared with the I/R model group. These results suggested that astragaloside IV ameliorated myocardial I/R injury by modulating succinate and lysophospholipid metabolism and scavenging ROS via the Nrf2 signal pathway.
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Xue B, Huang J, Ma B, Yang B, Chang D, Liu J. Astragaloside IV Protects Primary Cerebral Cortical Neurons from Oxygen and Glucose Deprivation/Reoxygenation by Activating the PKA/CREB Pathway. Neuroscience 2019; 404:326-337. [PMID: 30708047 DOI: 10.1016/j.neuroscience.2019.01.040] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 01/22/2019] [Accepted: 01/22/2019] [Indexed: 02/07/2023]
Abstract
Stroke is one of the major leading causes of death and disability worldwide, and post-stroke cognitive impairment is a major contributor to this disability. Astragaloside IV (AST-IV) is a primary bioactive compound of Radix Astragali, which is widely used in traditional Chinese medicine to treat stroke. AST-IV was found to possess cognition-enhancing properties against ischemic stroke; however, the mechanisms underlying this effect remain largely elusive. Mitochondrial health is critical to cell viability after ischemic injury. Cyclic AMP response element-binding protein (CREB) is a transcription factor that can be activated by protein kinase A (PKA) to preserve mitochondria, regulate memory and cognitive functions. We used an in vitro model of ischemic injury via oxygen and glucose deprivation (OGD) of cultured neurons, which led to PKA inactivation and decreased CREB phosphorylation, reduced cell viability, and increased neuronal apoptosis. We hypothesized that AST-IV could protect OGD-exposed cerebral cortical neurons by modulating the PKA/CREB signaling pathway and preserving mitochondrial function. We found that the mitochondrial and cellular injuries induced by OGD were reversed following treatment with AST-IV. The activity of neuronal mitochondria was evaluated by measuring the mitochondrial potential and the levels of reactive oxygen species (ROS) and adenosine triphosphate (ATP). AST-IV significantly enhanced PKA and CREB phosphorylation and prevented OGD-induced mitochondrial dysfunction, thereby protecting neurons exposed to OGD from injury and death. Furthermore, the effects of AST-IV were partially blocked by a PKA inhibitor. Collectively, these data elucidated the molecular mechanisms underlying the protective effects of AST-IV against ischemic injury in cortical neurons.
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Affiliation(s)
- Bingjie Xue
- Institute of Basic Medical Sciences, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Jisheng Huang
- Tianjin Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Bo Ma
- Institute of Basic Medical Sciences, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Bin Yang
- Institute of Basic Medical Sciences, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Dennis Chang
- NICM Health Research Institute, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751, Australia
| | - Jianxun Liu
- Institute of Basic Medical Sciences, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China; NICM Health Research Institute, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751, Australia.
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Lin X, Wang Q, Sun S, Xu G, Wu Q, Qi M, Bai F, Yu J. Astragaloside IV promotes the eNOS/NO/cGMP pathway and improves left ventricular diastolic function in rats with metabolic syndrome. J Int Med Res 2019; 48:300060519826848. [PMID: 30843445 PMCID: PMC7140221 DOI: 10.1177/0300060519826848] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Affiliation(s)
- Xin Lin
- Department of Cardiology, Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Qiongying Wang
- Department of Cardiology, Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Shougang Sun
- Department of Cardiology, Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Guangli Xu
- Department of Cardiology, Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Qiang Wu
- Department of Cardiology, Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Miaomiao Qi
- Department of Cardiology, Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Feng Bai
- Department of Cardiology, Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Jing Yu
- Department of Cardiology, Lanzhou University Second Hospital, Lanzhou, Gansu, China
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Li Y, Yang Y, Zhao Y, Zhang J, Liu B, Jiao S, Zhang X. Astragaloside IV reduces neuronal apoptosis and parthanatos in ischemic injury by preserving mitochondrial hexokinase-II. Free Radic Biol Med 2019; 131:251-263. [PMID: 30502455 DOI: 10.1016/j.freeradbiomed.2018.11.033] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 11/26/2018] [Accepted: 11/26/2018] [Indexed: 01/02/2023]
Abstract
Cerebral ischemia induces neuronal cell death in different ways and mitochondrial dysfunction is an important cause. Astragaloside IV (AIV) is a natural saponin abandent in Astragalus membranaceus and this study aims to find if AIV protects neuronal survival via preserving mitochondrial hexokinase-II (HK-II). Glutamate stimulation induced HK-II dissociation from mitochondria and impaired mitochondrial function, indicated by the opening of the mitochondrial permeability transition pore, the collapse of mitochondrial membrane potential and reduced mitochondrial oxygen consumption ratio in neurons. Accompanied with apoptosis, oxidative DNA damage, PAR formation and nuclear translocation of apoptosis inducing factor (AIF) indicated the presence of parthanatos. AIV activated Akt and protected mitochondrial HK-II via promoting the binding of Akt to HK-II and protected hexokinase activity with improved glycolysis. As a consequence of preserved mitochondrial HK-II, AIV reduced the release of pro-apoptotic proteins and AIF, resultantly protected neurons from apoptosis and parthanatos. Moreover, the neuroprotective effects of AIV were also reproduced in mice subjected to middle cerebral artery occlusion to support the findings in vitro. Together, these results showed that glutamate excitotoxicity impaired mitochondrial HK-II and simultaneously induced apoptosis and parthanatos owing to mitochondrial dysfunction. AIV activated Akt to promote HK-II binding to mitochondria, and the structural and functional integrity of mitochondria contributed to protecting neurons from apoptosis and DNA damage. These findings address the important role of mitochondrial HK-II in neuronal protection.
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Affiliation(s)
- Ying Li
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yilin Yang
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Yunpeng Zhao
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Jingmin Zhang
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Baolin Liu
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Shujie Jiao
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
| | - Xiaojian Zhang
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
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Yoo YM, Jung EM, Ahn C, Jeung EB. Nitric oxide prevents H 2O 2-induced apoptosis in SK-N-MC human neuroblastoma cells. Int J Biol Sci 2018; 14:1974-1984. [PMID: 30585261 PMCID: PMC6299366 DOI: 10.7150/ijbs.28050] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Accepted: 09/04/2018] [Indexed: 12/17/2022] Open
Abstract
Nitric oxide (NO) is a cellular signaling molecule in many physiological and pathological processes including neuroprotector. Here we examined the antiapoptotic effect of NO in SK-N-MC cells. H2O2 treatment (10-200 μM) induced cell death in a dose-dependent manner and pretreatment of cells with 100 μM S-nitroso-N-acetylpenicillamine (SNAP), an NO donor, attenuated the occurrence of H2O2-induced cell death. DAPI staining showed H2O2-induced nuclear fragmentation and NO treatment suppressed it. NO inhibited the proteolytic activation of caspase-3 and mitochondrial cytochrome c release. Treatment of soluble guanylyl cyclase inhibitor ODQ decreased the protective effect of SNAP on H2O2-treated cells and increased caspase 3-like enzyme activity and activation, cytochrome c release, PARP cleavage, and DNA fragmentation, indicating that cGMP is a key mediator in NO-mediated antiapoptosis. The cGMP analog 8-Br-cGMP blocked H2O2-induced apoptotic cell death; reduction of caspase-3 enzyme, cytochrome c release, and caspase-8 and -9. These preventive effects of SNAP and 8-Br-cGMP were suppressed by PKG inhibitor KT5823. Levels of PKGI, PKGII, and p-VASP proteins were increased by SNAP and 8-Br-cGMP and suppressed by KT5823 treatment. These results indicate that PKG is a downstream signal mediator in the suppression of apoptosis by NO and cGMP. Akt activation was inhibited the PI3K inhibitors LY294002 and Wortmannin, resulting in the inhibition of cell viability and increase of cytochrome c release. SNAP induced phosphorylation of Akt and Bad and then increased the interactions between 14-3-3β and p-Bad. These data suggest that the NO suppresses H2O2-induced SK-N-MC cell apoptosis by suppressing apoptosis signal mediating the interaction between 14-3-3β and Bad phosphorylation via PKG/PI3K/Akt.
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Affiliation(s)
| | | | | | - Eui-Bae Jeung
- Laboratory of Veterinary Biochemistry and Molecular Biology, College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk 28644, Republic of Korea
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Du Q, Zhang S, Li A, Mohammad IS, Liu B, Li Y. Astragaloside IV Inhibits Adipose Lipolysis and Reduces Hepatic Glucose Production via Akt Dependent PDE3B Expression in HFD-Fed Mice. Front Physiol 2018; 9:15. [PMID: 29410630 PMCID: PMC5787100 DOI: 10.3389/fphys.2018.00015] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 01/08/2018] [Indexed: 01/18/2023] Open
Abstract
Objective: This study aims to investigate the effect of astragaloside IV on adipose lipolysis and hepatic gluconeogenesis. Methods: High-fat diet (HFD) feeding induced adipose dysfunction with enhanced endogenous glucose production in mice. The effects of Astragaloside IV on lipolysis and hepatic glucose production were investigated. Results: HFD feeding induced cAMP accumulation through reducing PDE3B expression and activity in adipose tissue. As a result, HFD feeding increased adipose lipolysis in mice. Astragaloside IV enhanced Akt phosphorylation and promoted Akt binding to PDE3B to preserve PDE3B content, resultantly reducing adipose cAMP accumulation. Knockdown of Akt1/2 diminished the effect of astragaloside IV on PDE3B induction, indicative of the role of Akt in astragaloside IV action. As a result from blocking of cAMP/PKA signaling, astragaloside IV suppressed hormone-sensitive lipase (HSL) activation and inhibited inflammation-associated adipose lipolysis. Moreover, astragaloside IV reduced ectopic fat deposition in the liver and inhibited FoxO1 activation via regulation of Akt, resultantly restraining excess hepatic glucose production. Conclusion: We showed that preserving PDE3B content by Akt is a key regulation to prevent lipolysis. Astragaloside IV inhibited lipolysis by reducing cAMP accumulation via regulation of Akt/PDE3B, contributing to limiting hepatic lipid deposition and restraining excessive hepatic glucose production.
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Affiliation(s)
- Qun Du
- Pi-Wei Institute, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Shuihong Zhang
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Pharmacology of Chinese Materia Medica, China Pharmaceutical University, Nanjing, China
| | - Aiyun Li
- Experiment Center for Science and Technology, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Imran S Mohammad
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing, China
| | - Baolin Liu
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Pharmacology of Chinese Materia Medica, China Pharmaceutical University, Nanjing, China
| | - Yanwu Li
- Pi-Wei Institute, Guangzhou University of Chinese Medicine, Guangzhou, China
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Gu C, Zhang Y, Hu Q, Wu J, Ren H, Liu CF, Wang G. P7C3 inhibits GSK3β activation to protect dopaminergic neurons against neurotoxin-induced cell death in vitro and in vivo. Cell Death Dis 2017; 8:e2858. [PMID: 28569794 PMCID: PMC5520908 DOI: 10.1038/cddis.2017.250] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Revised: 04/12/2017] [Accepted: 05/03/2017] [Indexed: 01/17/2023]
Abstract
Parkinson’s disease (PD) is the second most prevalent neurodegenerative disease. Although its pathogenesis remains unclear, mitochondrial dysfunction plays a vital role in the pathology of PD. P7C3, an aminopropyl carbazole, possesses a significant neuroprotective ability in several neurodegenerative disorders, including PD. Here, we showed that P7C3 stabilized mitochondrial membrane potential, reduced reactive oxygen species production, and inhibited cytochrome c release in MES23.5 cells (a dopaminergic (DA) cell line) exposed to 1-methyl-4-phenylpyridinium (MPP+). In MES23.5 cells, P7C3 inhibited glycogen synthase kinase-3 beta (GSK3β) activation induced by MPP+. P7C3 also inhibited p53 activity and repressed Bax upregulation to protect cells from MPP+ toxicity. In addition, the activation of p53 was significantly attenuated with the inhibition of GSK3β activity by P7C3. Furthermore, P7C3 blocked GSK3β and p53 activation in the midbrain, and prevented DA neuronal loss in the substantia nigra in 1-methyl-4-phenyl-1,2,3,4-tetrahydropyridine mice. Thus, our study demonstrates that P7C3 protects DA neurons from neurotoxin-induced cell death by repressing the GSK3β-p53-Bax pathway both in vitro and in vivo, thus providing a theoretical basis for P7C3 in the potential clinical treatment of PD.
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Affiliation(s)
- Chao Gu
- Department of Pharmacology, Laboratory of Molecular Neuropathology, Jiangsu Key laboratory of Translational Research and Therapy for Neuropsychiatric disorders, College of Pharmaceutical Sciences, Soochow University, 199 Ren'ai Road, Suzhou 215123, Jiangsu, China
| | - Yan Zhang
- Department of Pharmacology, Laboratory of Molecular Neuropathology, Jiangsu Key laboratory of Translational Research and Therapy for Neuropsychiatric disorders, College of Pharmaceutical Sciences, Soochow University, 199 Ren'ai Road, Suzhou 215123, Jiangsu, China
| | - Qingsong Hu
- Department of Pharmacology, Laboratory of Molecular Neuropathology, Jiangsu Key laboratory of Translational Research and Therapy for Neuropsychiatric disorders, College of Pharmaceutical Sciences, Soochow University, 199 Ren'ai Road, Suzhou 215123, Jiangsu, China
| | - Jiayuan Wu
- Department of Pharmacology, Laboratory of Molecular Neuropathology, Jiangsu Key laboratory of Translational Research and Therapy for Neuropsychiatric disorders, College of Pharmaceutical Sciences, Soochow University, 199 Ren'ai Road, Suzhou 215123, Jiangsu, China
| | - Haigang Ren
- Department of Pharmacology, Laboratory of Molecular Neuropathology, Jiangsu Key laboratory of Translational Research and Therapy for Neuropsychiatric disorders, College of Pharmaceutical Sciences, Soochow University, 199 Ren'ai Road, Suzhou 215123, Jiangsu, China
| | - Chun-Feng Liu
- Department of Neurology and Suzhou Clinical Research Center of Neurological Disease, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China
| | - Guanghui Wang
- Department of Pharmacology, Laboratory of Molecular Neuropathology, Jiangsu Key laboratory of Translational Research and Therapy for Neuropsychiatric disorders, College of Pharmaceutical Sciences, Soochow University, 199 Ren'ai Road, Suzhou 215123, Jiangsu, China
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Calcium sensing receptor protects high glucose-induced energy metabolism disorder via blocking gp78-ubiquitin proteasome pathway. Cell Death Dis 2017; 8:e2799. [PMID: 28518143 PMCID: PMC5520714 DOI: 10.1038/cddis.2017.193] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2016] [Revised: 03/27/2017] [Accepted: 03/29/2017] [Indexed: 12/17/2022]
Abstract
Diabetic cardiomyopathy (DCM) is a major complication and fatal cause of the patients with diabetes. The calcium sensing receptor (CaSR) is a G protein-coupled receptor, which is involved in maintaining calcium homeostasis, regulating cell proliferation and apoptosis, and so on. In our previous study, we found that CaSR expression, intracellular calcium levels and cardiac function were all significantly decreased in DCM rats; however, the exact mechanism are not clear yet. The present study revealed the protective role of CaSR in myocardial energy metabolism disorder induced by high glucose (HG) as well as the underlying mechanism. Here, we demonstrated that HG decreased the expression of CaSR, mitochondrial fusion proteins (Mfn1, Mfn2), cell gap junction related proteins (Cx43, β-catenin, N-cadherin), and intracellular ATP concentration. In contrast, HG increased extracellular ATP concentration, the expression of gp78, mitochondrial fission proteins (Fis1, Drp1), and the ubiquitination levels of Mfn1, Mfn2 and Cx43. Moreover, CaSR agonist and gp78-siRNA significantly reduced the above changes. Taken together, these results suggest that HG induces myocardial energy metabolism disorder via decrease of CaSR expression, and activation of gp78-ubiquitin proteasome system. In turn, these effects disrupt the structure and function of the mitochondria and the cell gap junction, result in the reduced ATP synthesis and the increased ATP leakage. Stimulation of CaSR significantly attenuates HG-induced abnormal myocardial energy metabolism, suggesting CaSR would be a promising potential therapeutic target for DCM.
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Li L, Hou X, Xu R, Liu C, Tu M. Research review on the pharmacological effects of astragaloside IV. Fundam Clin Pharmacol 2016; 31:17-36. [PMID: 27567103 DOI: 10.1111/fcp.12232] [Citation(s) in RCA: 228] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 07/09/2016] [Accepted: 08/26/2016] [Indexed: 12/11/2022]
Abstract
Astragalus membranaceus Bunge has been used to treat numerous diseases for thousands of years. As the main active substance of Astragalus membranaceus Bunge, astragaloside IV (AS-IV) also demonstrates the potent protective effect on focal cerebral ischemia/reperfusion, cardiovascular disease, pulmonary disease, liver fibrosis, and diabetic nephropathy. Based on studies published during the past several decades, the current state of AS-IV research and the pharmacological effects are detailed, elucidated, and summarized. This review systematically summarizes the pharmacological effects, metabolism mechanism, and the toxicity of AS-IV. AS-IV has multiple pharmacologic effects, including anti-inflammatory, antifibrotic, antioxidative stress, anti-asthma, antidiabetes, immunoregulation, and cardioprotective effect via numerous signaling pathways. According to the existing studies and clinical practices, AS-IV possesses potential for broad application in many diseases.
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Affiliation(s)
- Lei Li
- College of Animal Science, Anhui Science and Technology University, Chuzhou, China
| | - Xiaojiao Hou
- Engineering Research Center of Chinese Traditional Veterinary Medicine, Beijing, China
| | - Rongfang Xu
- Engineering Research Center of Chinese Traditional Veterinary Medicine, Beijing, China
| | - Chang Liu
- College of Animal Science, Anhui Science and Technology University, Chuzhou, China
| | - Menbayaer Tu
- Engineering Research Center of Chinese Traditional Veterinary Medicine, Beijing, China
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Liu Q, Li J, Jubair S, Wang D, Luo Y, Fan D, Janicki JS. Sparstolonin B attenuates hypoxia-induced apoptosis, necrosis and inflammation in cultured rat left ventricular tissue slices. Cardiovasc Drugs Ther 2015; 28:433-9. [PMID: 25117676 DOI: 10.1007/s10557-014-6545-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
PURPOSE Ischemia/reperfusion results in tissue damage, a rapid increase in cytokines and chemokines and inflammatory cell infiltration. Herein we investigated the ability of a selective TLR2/4 antagonist, Sparstolonin B (SsnB), to protect rat cultured left ventricular tissue (LV) slices from hypoxic injury by inhibiting the myocardial inflammatory response independent of inflammatory cell infiltration. METHODS AND RESULTS Media Lactate dehydrogenase (LDH) levels were measured to reflect hypoxia-induced cytotoxicity and cell injury with and without SsnB. Incubation with SsnB (15 and 30 μM) significantly reduced by 20 and 40%, respectively, the amount of LDH released from the hypoxic LV slices. TUNEL staining showed that SsnB significantly attenuated the levels of hypoxia-induced apoptotic cells from 61.5 ± 4.0 to 27.0 ± 2.1 (15 μM SsnB) and 23.5 ± 2.2 (30 μM SsnB) cells/unit area. Similarly, the Periodic Acid-Schiff (PAS) staining of ischemic areas in untreated hypoxic LV slices was increased 17 fold from 0.26± 0.09 to 4.41 ± 0.43%, while in hypoxic slices incubated with 15 and 30 μM of SsnB, the PAS positive ischemic areas were increased by only 6.4 fold to 1.66 ± 0.39% and 3.8 fold to 1.00 ± 0.22%, respectively. Rt-PCR confirmed that MCP1 and IL-6 expression during hypoxia was elevated by 2 and 4 fold, respectively, while their up-regulation was significantly inhibited (i.e., < 0.7 fold increase) by SsnB. CONCLUSION The selective TLR2/4 antagonist, Sparstolonin B, can substantially protect LV myocardium via its ability to inhibit injury resulting from hypoxic myocardial-generated inflammation. Accordingly SsnB has potential as a therapeutic agent for the attenuation of myocardial ischemia-reperfusion injury.
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Affiliation(s)
- Qing Liu
- Department of Cell Biology and Anatomy, University of South Carolina School of Medicine, Columbia, SC, 29208, USA
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Zhao M, Shao D, Yu L, Sun X, Wang Y, Hu H, Feng R, Gao Q, Guo F, Hao L. Electrophysiological effect and the gating mechanism of astragaloside IV on L-type Ca(2+) channels of guinea-pig ventricular myocytes. Eur J Pharmacol 2015; 760:27-35. [PMID: 25891370 DOI: 10.1016/j.ejphar.2015.03.082] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Revised: 03/26/2015] [Accepted: 03/30/2015] [Indexed: 10/23/2022]
Abstract
Astragaloside IV (AS-IV) is one of the main active ingredients of Astragalus membranaceus. This study is aimed to investigate AS-IV׳s effects on Ca(2+) channel activity of single cardiomyocytes and single Ca(2+) channels. Whole-cell Ca(2+) currents in freshly dissociated cardiomyocytes were measured using the whole-cell patch-clamp technique. Single Ca(2+) channel currents were examined in cell-attached patches and inside-out patches. In the whole-cell recording, AS-IV reduced the amplitude of L-type Ca(2+) currents (ICaL) in a concentration-dependent manner. Although AS-IV did not alter the steady-state activation curves, the voltage dependence of the current inactivation curves was negatively shifted by AS-IV in a concentration dependent manner. Consistent with the results of the whole-cell recording, in the inside-out configuration the ensemble average of single Ba(2+) current via L-type Ca(2+) channel was dose-dependently reduced by AS-IV. The reduction of unitary Ba(2+) current at 0.1 or 1 µM AS-IV was accounted for a decrease in the channel activity (NPo). In addition to the decrease in NPo, there was a reduction of Po without a change in channel number or an apparent change in single channel current. Furthermore, we found that the open-closed kinetics of the channel were affected by AS-IV. AS-IV induced the shift of L-type Ca(2+) channels from either brief openings (mode 1) or long-lasting openings (mode 2) to no active opening (mode 0). Our results suggest that AS-IV blocks the currents through Ca(2+) channels in guinea-pig ventricular myocytes by affecting the open-closed kinetics of L-type Ca(2+) channels to inhibit the channel activities. This study could provide theoretical basis for the drug exploiting of the monomer of Astragalus membranaceus.
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Affiliation(s)
- Meimi Zhao
- Department of Pharmaceutical Toxicology, School of Pharmacy, China Medical University, Shenyang 110001, China; Cardiovascular Institute of China Medical University, Shenyang 110001, China
| | - Dongxue Shao
- Department of Pharmaceutical Toxicology, School of Pharmacy, China Medical University, Shenyang 110001, China
| | - Lifeng Yu
- Department of Pharmaceutical Toxicology, School of Pharmacy, China Medical University, Shenyang 110001, China
| | - Xuefei Sun
- Department of Pharmaceutical Toxicology, School of Pharmacy, China Medical University, Shenyang 110001, China
| | - Yan Wang
- Department of Pharmaceutical Toxicology, School of Pharmacy, China Medical University, Shenyang 110001, China
| | - Huiyuan Hu
- Department of Pharmaceutical Toxicology, School of Pharmacy, China Medical University, Shenyang 110001, China
| | - Rui Feng
- Department of Pharmaceutical Toxicology, School of Pharmacy, China Medical University, Shenyang 110001, China
| | - Qinghua Gao
- Department of Pharmaceutical Toxicology, School of Pharmacy, China Medical University, Shenyang 110001, China
| | - Feng Guo
- Department of Pharmaceutical Toxicology, School of Pharmacy, China Medical University, Shenyang 110001, China
| | - Liying Hao
- Department of Pharmaceutical Toxicology, School of Pharmacy, China Medical University, Shenyang 110001, China; Cardiovascular Institute of China Medical University, Shenyang 110001, China.
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