1
|
Dong X, Qu L, Xiong J, Wang B, Sha X, Wu B, Sun Y, Pan X, Sun J, Pan LL. Shizukaol C alleviates trimethylamine oxide-induced inflammation through activating Keap1-Nrf2-GSTpi pathway in vascular smooth muscle cell. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 128:155403. [PMID: 38564920 DOI: 10.1016/j.phymed.2024.155403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 01/11/2024] [Accepted: 01/31/2024] [Indexed: 04/04/2024]
Abstract
BACKGROUND Cardiovascular disease is one of the main causes of global mortality, and there is an urgent need for effective treatment strategies. Gut microbiota-dependent metabolite trimethylamine-N-oxide (TMAO) promotes the development of cardiovascular diseases, and shizukaol C, a natural sesquiterpene isolated from Chloranthus multistachys with various biological activities, might exhibit beneficial role in preventing TMAO-induced vascular inflammation. PURPOSE The purpose of this study was to investigate the anti-inflammatory effects and the underlying mechanisms of shizukaol C on TMAO-induced vascular inflammation. METHODS The effect and underlying mechanism of shizukaol C on TMAO-induced adhesion molecules expression, bone marrow-derived macrophages (BMDM) adhesion to VSMC were evaluated by western blot, cell adhesion assay, co-immunoprecipitation, immunofluorescence assay, and quantitative Real-Time PCR, respectively. To verify the role of shizukaol C in vivo, TMAO-induced vascular inflammation model were established using guidewire-induced injury on mice carotid artery. Changes in the intima area and the expression of GSTpi, VCAM-1, CD68 were examined using haematoxylin-eosin staining, and immunofluorescence assay. RESULTS Our data demonstrated that shizukaol C significantly suppressed TMAO-induced adhesion molecule expression and the bone marrow-derived macrophages (BMDM) adhesion in vascular smooth muscle cells (VSMC). Mechanically, shizukaol C inhibited TMAO-induced c-Jun N-terminal kinase (JNK)-nuclear factor-kappa B (NF-κB)/p65 activation, and the JNK inhibition was dependent on the shizukaol C-mediated glutathione-S-transferase pi (GSTpi) expression. By further molecular docking and protein-binding analysis, we demonstrated that shizukaol C directly binds to Keap1 to induce Nrf2 nuclear translocation and upregulated GSTpi expression. Consistently, our in vivo experiment showed that shizukaol C elevated the expression level of GSTpi in carotid arteries and alleviates TMAO-induced vascular inflammation. CONCLUSION Shizukaol C exerts anti-inflammatory effects in TMAO-treated VSMC by targeting Keap1 and activating Nrf2-GSTpi signaling and resultantly inhibits the downstream JNK-NF-κB/p65 activation and VSMC adhesion, and alleviates TMAO-induced vascular inflammation in vivo, suggesting that shizukaol C may be a potential drug for treating TMAO-induced vascular diseases.
Collapse
Affiliation(s)
- Xiaoliang Dong
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, PR China
| | - Lu Qu
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, PR China
| | - Juan Xiong
- Department of Natural Medicine, School of Pharmacy, Fudan University, Shanghai, PR China
| | - Bingxin Wang
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, PR China
| | - Xiaowei Sha
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, PR China
| | - Bo Wu
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, PR China
| | - Yudong Sun
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, PR China
| | - Xiaohua Pan
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, PR China
| | - Jia Sun
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, PR China.
| | - Li-Long Pan
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, PR China.
| |
Collapse
|
2
|
Ji L, Su S, Xin M, Zhang Z, Nan X, Li Z, Lu D. Luteolin ameliorates hypoxia-induced pulmonary hypertension via regulating HIF-2α-Arg-NO axis and PI3K-AKT-eNOS-NO signaling pathway. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 104:154329. [PMID: 35843187 DOI: 10.1016/j.phymed.2022.154329] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 06/23/2022] [Accepted: 07/07/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Pulmonary hypertension (PH) is a devastating disease with poor prognosis and high mortality. Hypoxia induced pulmonary hypertension (HPH) is a persistent threat to human health, especially to people who live on high altitude plateau. Pulmonary vascular endothelial cell is involved in numerous pathophysiological processes, including in vasoconstriction, oxidative stress, cell growth and differentiation. Endothelial cells (ECs) are the first layer to be exposed to changed oxygen levels and hypoxia could lead to ECs dysfunction. Endothelial-derived nitric oxide (NO) is the most important bioactive molecule, which could regulate endothelial homeostasis. PH pathophysiology has been linked to the disruption of NO pathways. PURPOSE Luteolin is a kind of plant active ingredient with multiple pharmacological activities. The purpose of this study is to detect the effect of luteolin on HPH with in vivo, ex vivo and in vitro analyses and to further elucidate luteolin's pharmaceutical mechanism with NO related signaling pathway regulation. METHODS Hypobaric chamber was used to establish HPH animal model. Rats were intragastrically administrated luteolin for 28 days. Then hemodynamic indexes, histopathological changes, pulmonary artery endothelial function, NO content and arginase activity in lung tissue, NO related pathway proteins expression were measured to evaluate the effect of luteolin on HPH. PAECs were treated with 1% O2 and incubated with or without luteolin. PAECs vitality, NO content in cells supernatant, and NO related pathway proteins expression were tested to reveal the protective mechanism of luteolin. RESULTS Luteolin decreased mean pulmonary hypertension of HPH rats, alleviated right ventricular and pulmonary vascular remodeling. Immunofluorescence staining (vWF), isolated perfused/ventilated rat lung experiment indicated that luteolin protected pulmonary vascular endothelial function of HPH rats. Luteolin increased NO content in PAECs supernatant while decreased NO level in lung tissues of HPH rats. Further, it was demonstrated that luteolin inhibited HIF-2α-Arg axis in PAECs and HPH rats. PI3K-AKT-eNOS signaling pathway was upregulated in PAECs, but which was downregulated in lung tissues of HPH rats. Pharmacological effect of luteolin was equivalent or better than sildenafil. CONCLUSION Luteolin ameliorated HPH in rats by protecting pulmonary vascular endothelial function via regulating HIF-2α-Arg-NO axis and PI3K-AKT-eNOS-NO signaling pathway. This study may provide a novel perspective and approach to alleviate the devastating disease of HPH.
Collapse
Affiliation(s)
- Lei Ji
- Research Center for High Altitude Medicine, Key Laboratory of High Altitude Medicine (Ministry of Education), Key Laboratory of Application and Foundation for High Altitude Medicine Research in Qinghai Province (Qinghai-Utah Joint Research Key Lab for High Altitude Medicine), Qinghai University, Xining, China; Qinghai Provincial People's Hospital, Xining, China
| | - Shanshan Su
- Technical Center of Xining Customs, Key Laboratory of Food Safety Research in Qinghai Province, Xining, China
| | - Mingyuan Xin
- Medical College, Qinghai University, Xining, China
| | - Zhaoxia Zhang
- Research Center for High Altitude Medicine, Key Laboratory of High Altitude Medicine (Ministry of Education), Key Laboratory of Application and Foundation for High Altitude Medicine Research in Qinghai Province (Qinghai-Utah Joint Research Key Lab for High Altitude Medicine), Qinghai University, Xining, China
| | - Xingmei Nan
- Medical College, Qinghai University, Xining, China
| | - Zhanqiang Li
- Research Center for High Altitude Medicine, Key Laboratory of High Altitude Medicine (Ministry of Education), Key Laboratory of Application and Foundation for High Altitude Medicine Research in Qinghai Province (Qinghai-Utah Joint Research Key Lab for High Altitude Medicine), Qinghai University, Xining, China.
| | - Dianxiang Lu
- Research Center for High Altitude Medicine, Key Laboratory of High Altitude Medicine (Ministry of Education), Key Laboratory of Application and Foundation for High Altitude Medicine Research in Qinghai Province (Qinghai-Utah Joint Research Key Lab for High Altitude Medicine), Qinghai University, Xining, China.
| |
Collapse
|
3
|
Li L, Wu J, Yao R, Yang D, Chen Y, Zhang J, Huang L. Integrated network pharmacology and experimental verification to explore the mechanism of Sangqi Qingxuan formula against hypertensive vascular remodeling. JOURNAL OF TRADITIONAL CHINESE MEDICAL SCIENCES 2022. [DOI: 10.1016/j.jtcms.2022.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
|
4
|
Li RL, Wang LY, Liu S, Duan HX, Zhang Q, Zhang T, Peng W, Huang Y, Wu C. Natural Flavonoids Derived From Fruits Are Potential Agents Against Atherosclerosis. Front Nutr 2022; 9:862277. [PMID: 35399657 PMCID: PMC8987282 DOI: 10.3389/fnut.2022.862277] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 02/17/2022] [Indexed: 12/14/2022] Open
Abstract
Atherosclerosis, as a chronic inflammatory response, is one of the main causes of cardiovascular diseases. Atherosclerosis is induced by endothelial cell dysfunction, migration and proliferation of smooth muscle cells, accumulation of foam cells and inflammatory response, resulting in plaque accumulation, narrowing and hardening of the artery wall, and ultimately leading to myocardial infarction or sudden death and other serious consequences. Flavonoid is a kind of natural polyphenol compound widely existing in fruits with various structures, mainly including flavonols, flavones, flavanones, flavanols, anthocyanins, isoflavones, and chalcone, etc. Because of its potential health benefits, it is now used in supplements, cosmetics and medicines, and researchers are increasingly paying attention to its role in atherosclerosis. In this paper, we will focus on several important nodes in the development of atherosclerotic disease, including endothelial cell dysfunction, smooth muscle cell migration and proliferation, foam cell accumulation and inflammatory response. At the same time, through the classification of flavonoids from fruits, the role and potential mechanism of flavonoids in atherosclerosis were reviewed, providing a certain direction for the development of fruit flavonoids in the treatment of atherosclerosis drugs.
Collapse
Affiliation(s)
- Ruo-Lan Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ling-Yu Wang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Shuqin Liu
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Hu-Xinyue Duan
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Qing Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ting Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Wei Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- *Correspondence: Wei Peng,
| | - Yongliang Huang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
- Yongliang Huang,
| | - Chunjie Wu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- Chunjie Wu,
| |
Collapse
|
5
|
Zuo W, Liu N, Zeng Y, Xiao Z, Wu K, Yang F, Li B, Song Q, Xiao Y, Liu Q. Luteolin Ameliorates Experimental Pulmonary Arterial Hypertension via Suppressing Hippo-YAP/PI3K/AKT Signaling Pathway. Front Pharmacol 2021; 12:663551. [PMID: 33935785 PMCID: PMC8082250 DOI: 10.3389/fphar.2021.663551] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 03/23/2021] [Indexed: 12/17/2022] Open
Abstract
Luteolin is a flavonoid compound with a variety of pharmacological effects. In this study, we explored the effects of luteolin on monocrotaline (MCT) induced rat pulmonary arterial hypertension (PAH) and underlying mechanisms. A rat PAH model was generated through MCT injection. In this model, luteolin improved pulmonary vascular remodeling and right ventricular hypertrophy, meanwhile, luteolin could inhibit the proliferation and migration of pulmonary artery smooth muscle cells induced by platelet-derived growth factor-BB (PDGF-BB) in a dose-dependent manner. Moreover, our results showed that luteolin could downregulate the expression of LATS1 and YAP, decrease YAP nuclear localization, reduce the expression of PI3K, and thereby restrain the phosphorylation of AKT induced by PDGF-BB. In conclusion, luteolin ameliorated experimental PAH, which was at least partly mediated through suppressing HIPPO-YAP/PI3K/AKT signaling pathway. Therefore, luteolin might become a promising candidate for treatment of PAH.
Collapse
Affiliation(s)
- Wanyun Zuo
- Department of Cardiovascular Medicine, The Second Xiangya Hospital of Central South University, Hunan, China
| | - Na Liu
- Department of Cardiovascular Medicine, The Second Xiangya Hospital of Central South University, Hunan, China
| | - Yunhong Zeng
- Department of Cardiology, Hunan Children's Hospital, Hunan, China
| | - Zhenghui Xiao
- Department of Cardiology, Hunan Children's Hospital, Hunan, China
| | - Keke Wu
- Department of Cardiovascular Medicine, The Second Xiangya Hospital of Central South University, Hunan, China
| | - Fan Yang
- Department of Cardiovascular Medicine, The Second Xiangya Hospital of Central South University, Hunan, China
| | - Biao Li
- Department of Cardiovascular Medicine, The Second Xiangya Hospital of Central South University, Hunan, China
| | - Qingqing Song
- Department of Cardiovascular Medicine, The Second Xiangya Hospital of Central South University, Hunan, China
| | - Yunbin Xiao
- Department of Cardiology, Hunan Children's Hospital, Hunan, China
| | - Qiming Liu
- Department of Cardiovascular Medicine, The Second Xiangya Hospital of Central South University, Hunan, China
| |
Collapse
|
6
|
Hsuan CF, Lu YC, Tsai IT, Houng JY, Wang SW, Chang TH, Chen YL, Chang CC. Glossogyne tenuifolia Attenuates Proliferation and Migration of Vascular Smooth Muscle Cells. Molecules 2020; 25:molecules25245832. [PMID: 33321921 PMCID: PMC7763981 DOI: 10.3390/molecules25245832] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Revised: 12/06/2020] [Accepted: 12/08/2020] [Indexed: 12/14/2022] Open
Abstract
The proliferation and migration of vascular smooth muscle cells (VSMCs) are essential in the pathogenesis of various vascular diseases, such as atherosclerosis and restenosis. Among the mediators of VSMC during atherosclerosis development, platelet-derived growth factor (PDGF)-BB is a potent mitogen for VSMCs and greatly contributes to the intimal accumulation of VSMCs. Glossogyne tenuifolia (GT, Xiang-Ru) is a traditional antipyretic and hepatoprotective herb from Penghu Island, Taiwan. This study evaluated the inhibitory effect of GT ethanol extract (GTE) and GT water extract (GTW) on proliferative and migratory activities in PDGF-BB-induced VSMCs. The experimental results demonstrated that GTE significantly inhibited the PDGF-BB-stimulated VSMC proliferation and migration, as shown by MTT, wound healing, and Boyden chamber assays. GTE was found to have a much more potent inhibitory activity than GTW. Based on the Western blot analysis, GTE significantly blocked the PDGF-BB-induced phosphorylation of NF-κB and mitogen-activated protein kinase (MAPK) pathways, including extracellular signal-regulated kinase (ERK), p38, and JNK, in VSMCs. In addition, GTE retarded the PDGF-BB-mediated migration through the suppression of matrix metalloproteinase (MMP)-2 and MMP-9 expression in VSMCs. Three main ingredients of GT-chlorogenic acid, luteolin-7-glucoside, and luteolin-all showed significant anti-proliferative effects on PDGF-BB-induced VSMCs. As a whole, our findings indicated that GTE has the potential to be a therapeutic agent to prevent or treat restenosis or atherosclerosis.
Collapse
Affiliation(s)
- Chin-Feng Hsuan
- School of Medicine, College of Medicine, I-Shou University, Kaohsiung 82445, Taiwan; (C.-F.H.); (I.-T.T.); (S.-W.W.)
- Division of Cardiology, Department of Internal Medicine, E-Da Hospital/E-Da Dachang Hospital, Kaohsiung 82445, Taiwan
| | - Yung-Chuan Lu
- School of Medicine for International Students, College of Medicine, I-Shou University, Kaohsiung 82445, Taiwan;
- Division of Endocrinology and Metabolism, Department of Internal Medicine, E-Da Hospital, Kaohsiung 82445, Taiwan
| | - I-Ting Tsai
- School of Medicine, College of Medicine, I-Shou University, Kaohsiung 82445, Taiwan; (C.-F.H.); (I.-T.T.); (S.-W.W.)
- Department of Emergency, E-Da Hospital, Kaohsiung 82445, Taiwan
| | - Jer-Yiing Houng
- Department of Nutrition, I-Shou University, Kaohsiung 82445, Taiwan; (J.-Y.H.); (T.-H.C.)
- Department of Chemical Engineering, I-Shou University, Kaohsiung 84001, Taiwan
| | - Shih-Wei Wang
- School of Medicine, College of Medicine, I-Shou University, Kaohsiung 82445, Taiwan; (C.-F.H.); (I.-T.T.); (S.-W.W.)
- Division of Allergy, Immunology, and Rheumatology, Department of Internal Medicine, E-Da Hospital, Kaohsiung 82445, Taiwan
| | - Tzu-Hsien Chang
- Department of Nutrition, I-Shou University, Kaohsiung 82445, Taiwan; (J.-Y.H.); (T.-H.C.)
| | - Ya-Ling Chen
- Department of Obstetrics & Gynecology, E-Da Hospital/E-Da Dachang Hospital, Kaohsiung 82445, Taiwan;
| | - Chi-Chang Chang
- School of Medicine for International Students, College of Medicine, I-Shou University, Kaohsiung 82445, Taiwan;
- Department of Obstetrics & Gynecology, E-Da Hospital/E-Da Dachang Hospital, Kaohsiung 82445, Taiwan;
- Correspondence: ; Tel.: +886-7-6150011 (ext. 251168)
| |
Collapse
|
7
|
Flavonoids in adipose tissue inflammation and atherosclerosis: one arrow, two targets. Clin Sci (Lond) 2020; 134:1403-1432. [PMID: 32556180 DOI: 10.1042/cs20200356] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 06/09/2020] [Accepted: 06/10/2020] [Indexed: 02/07/2023]
Abstract
Flavonoids are polyphenolic compounds naturally occurring in fruits and vegetables, in addition to beverages such as tea and coffee. Flavonoids are emerging as potent therapeutic agents for cardiovascular as well as metabolic diseases. Several studies corroborated an inverse relationship between flavonoid consumption and cardiovascular disease (CVD) or adipose tissue inflammation (ATI). Flavonoids exert their anti-atherogenic effects by increasing nitric oxide (NO), reducing reactive oxygen species (ROS), and decreasing pro-inflammatory cytokines. In addition, flavonoids alleviate ATI by decreasing triglyceride and cholesterol levels, as well as by attenuating inflammatory mediators. Furthermore, flavonoids inhibit synthesis of fatty acids and promote their oxidation. In this review, we discuss the effect of the main classes of flavonoids, namely flavones, flavonols, flavanols, flavanones, anthocyanins, and isoflavones, on atherosclerosis and ATI. In addition, we dissect the underlying molecular and cellular mechanisms of action for these flavonoids. We conclude by supporting the potential benefit for flavonoids in the management or treatment of CVD; yet, we call for more robust clinical studies for safety and pharmacokinetic values.
Collapse
|
8
|
Reactive Oxygen Species from NADPH Oxidase and Mitochondria Participate in the Proliferation of Aortic Smooth Muscle Cells from a Model of Metabolic Syndrome. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:5835072. [PMID: 30671170 PMCID: PMC6323422 DOI: 10.1155/2018/5835072] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 10/27/2018] [Accepted: 11/01/2018] [Indexed: 12/12/2022]
Abstract
In metabolic diseases, the increased reactive oxygen species (ROS) represents one of the pathogenic mechanisms for vascular disease probably by promoting vascular smooth muscle cell (SMC) proliferation that contributes to the development of arterial remodeling and stenosis, hypertension, and atherosclerosis. Therefore, this work was undertaken to evaluate the participation of ROS from NADPH oxidase and mitochondria in the proliferation of SMCs from the aorta in a model of metabolic syndrome induced by sucrose feeding in rats. After 24 weeks, sucrose-fed (SF) rats develop hypertension, intra-abdominal obesity, hyperinsulinemia, and hyperleptinemia. In addition SMCs from SF rats had a higher growth rate and produce more ROS than control cells. The treatment of SMCs with DPI and apocynin to inhibit NADPH oxidase and with tempol to scavenge superoxide anion significantly blocked the proliferation of both SF and control cells suggesting the participation of NADPH oxidase as a source of superoxide anion. MitoTEMPO, which targets mitochondria within the cell, also significantly inhibited the proliferation of SMCs having a greater effect on cells from SF than from the control aorta. The higher rate of cell growth from the SF aorta is supported by the increased content of cyclophilin A and CD147, proteins involved in the mechanism of cell proliferation. In addition, caldesmon, α-actin, and phosphorylated myosin light chain, contractile phenotype proteins, were found significantly lower in SF cells in no confluent state and increased in confluent state but without difference between both cell types. Our results suggest that ROS from NADPH oxidase and mitochondria significantly participate in the difference found in the rate of cell growth between SF and control cells.
Collapse
|
9
|
Wang Y, Zhang Y, Chen X, Hong Y, Wu Z. [Combined treatment with myo-inositol and luteolin selectively suppresses growth of human lung cancer A549 cells possibly by suppressing activation of PDK1 and Akt]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2018; 38:1378-1383. [PMID: 30514689 DOI: 10.12122/j.issn.1673-4254.2018.11.17] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
OBJECTIVE To study the effects of myo-inositol and luteolin on human lung cancer A549 cells and explore the possible mechanisms. METHODS A549 cells were treated with different concentrations of myo-inositol and luteolin, either alone or in combination, and the cell viability was examined using MTT assay. A549 cells and human bronchial epithelial Beas-2B cells were treated for 48 h with 10 mmol/L myo-inositol and 20 μmol/L luteolin, alone or in combination, and the cell proliferation was detected using MTT assay; the colony formation and migration of the cells were examined with colony formation assay and wound healing assay, respectively. The protein expression levels in A549 cells were detected using Western blotting. RESULTS Both myo-inositol and luteolin could dose-dependently inhibit the viability of A549 cells. Treatments with 10 mmol/L myo-inositol, 20 μmol/L luteolin, and both for 48 h caused significant reduction in the cell viability (92%, 83% and 70% of the control level, respectively) and colony number (79%, 73% and 43%, respectively), and significantly lowered the wound closure rate (24.61%, 13.08% and 8.65%, respectively, as compared with 29.99% in the control group). Similar treatments with myoinositol and luteolin alone or in combination produced no significant inhibitory effect on the growth, colony formation or migration of Beas-2B cells. The expressions of p-PDK1 and p-Akt in myo-inositol-treated A549 cells and the expression of pPDK1 in luteolin-treated cells were significantly decreased (P < 0.05), and the decrements were more obvious in the combined treatment group (P < 0.05). CONCLUSIONS Luteolin combined with myo-inositol can selectively inhibit the proliferation and migration of A549 cells, and these effects are probably mediated, at least in part, by suppressing the activation of PDK1 and Akt.
Collapse
Affiliation(s)
- Yun Wang
- School of Public Health, Bengbu Medical College, Bengbu 233030, China
| | - Yuyuan Zhang
- School of Public Health, Bengbu Medical College, Bengbu 233030, China
| | - Xue Chen
- School of Public Health, Bengbu Medical College, Bengbu 233030, China
| | - Yun Hong
- School of Public Health, Bengbu Medical College, Bengbu 233030, China
| | - Zhengdong Wu
- School of Public Health, Bengbu Medical College, Bengbu 233030, China
| |
Collapse
|
10
|
Ben P, Hu M, Wu H, Zhang Z, Gao Y, Luo L, Yin Z. L-Theanine Down-Regulates the JAK/STAT3 Pathway to Attenuate the Proliferation and Migration of Vascular Smooth Muscle Cells Induced by Angiotensin II. Biol Pharm Bull 2018; 41:1678-1684. [DOI: 10.1248/bpb.b18-00387] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Peiling Ben
- Department of Medicine, Chuzhou City Vocation College
| | - Monong Hu
- Department of Medicine, Chuzhou City Vocation College
| | - Huizhen Wu
- Department of Medicine, Chuzhou City Vocation College
| | - Zhengping Zhang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University
| | - Yanhong Gao
- Jiangsu Province Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University
| | - Lan Luo
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University
| | - Zhimin Yin
- Jiangsu Province Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University
| |
Collapse
|
11
|
Wu YT, Chen L, Tan ZB, Fan HJ, Xie LP, Zhang WT, Chen HM, Li J, Liu B, Zhou YC. Luteolin Inhibits Vascular Smooth Muscle Cell Proliferation and Migration by Inhibiting TGFBR1 Signaling. Front Pharmacol 2018; 9:1059. [PMID: 30298006 PMCID: PMC6160560 DOI: 10.3389/fphar.2018.01059] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2018] [Accepted: 09/03/2018] [Indexed: 11/24/2022] Open
Abstract
Vascular smooth muscle cell (VSMC) proliferation and migration play a critical role in the development of arterial remodeling during various vascular diseases including atherosclerosis, hypertension, and related diseases. Luteolin is a food-derived flavonoid that exerts protective effects on cardiovascular diseases. Here, we investigated whether transforming growth factor-β receptor 1 (TGFBR1) signaling underlies the inhibitory effects of luteolin on VSMC proliferation and migration. We found that luteolin reduced the proliferation and migration of VSMCs, specifically A7r5 and HASMC cells, in a dose-dependent manner, based on MTS and EdU, and Transwell and wound healing assays, respectively. We also demonstrated that it inhibited the expression of proliferation-related proteins including PCNA and Cyclin D1, as well as the migration-related proteins MMP2 and MMP9, in a dose-dependent manner by western blotting. In addition, luteolin dose-dependently inhibited the phosphorylation of TGFBR1, Smad2, and Smad3. Notably, adenovirus-mediated overexpression of TGFBR1 enhanced TGFBR1, Smad2, and Smad3 activation in VSMCs and partially blocked the inhibitory effect of luteolin on TGFBR1, Smad2, and Smad3. Moreover, overexpression of TGFBR1 rescued the inhibitory effects of luteolin on the proliferation and migration of VSMCs. Additionally, molecular docking showed that this compound could dock onto an agonist binding site of TGFBR1, and that the binding energy between luteolin and TGFBR1 was -10.194 kcal/mol. Simulations of molecular dynamics showed that TGFBR1-luteolin binding was stable. Collectively, these data demonstrated that luteolin might inhibit VSMC proliferation and migration by suppressing TGFBR1 signaling.
Collapse
Affiliation(s)
- Yu-Ting Wu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China.,Department of Traditional Chinese Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Ling Chen
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China.,Department of Traditional Chinese Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zhang-Bin Tan
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China.,Department of Traditional Chinese Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Hui-Jie Fan
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China.,Department of Traditional Chinese Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Ling-Peng Xie
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China.,Department of Traditional Chinese Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Wen-Tong Zhang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China.,Department of Traditional Chinese Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Hong-Mei Chen
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China.,Department of Traditional Chinese Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jun Li
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China.,Department of Traditional Chinese Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Bin Liu
- Department of Traditional Chinese Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Guangzhou Institute of Cardiovascular Disease, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Ying-Chun Zhou
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China.,Department of Traditional Chinese Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| |
Collapse
|
12
|
Qiao L, Chen W. Atheroprotective effects and molecular targets of bioactive compounds from traditional Chinese medicine. Pharmacol Res 2018; 135:212-229. [PMID: 30107203 DOI: 10.1016/j.phrs.2018.07.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 06/12/2018] [Accepted: 07/12/2018] [Indexed: 01/16/2023]
Abstract
Traditional Chinese medicine (TCM) has served the Chinese people since antiquity, and is playing an important role in today's healthcare. However, there has been controversy in the use of these traditional herbs due to unclear components and absence of scientific proof. As China plans to modernize traditional medicine, successful attempts to better understand the molecular mechanisms of TCM have been made by focusing on isolating active ingredients from these remedies. In this review, we critically examined the current evidence on atheroprotective effects of bioactive compounds from TCM using in vitro or in vivo models in the past two decades. A total of 47 active compounds were included in our review, which were introduced in the order of chemical structures, source, model, efficacy and mechanism. Notablely, this review highlighted the cellular and molecular mechanisms of these active compounds in prevention and treatment of atherosclerosis. Two compounds were also involved in double-blind, randomized, placebo-controlled clinical trials (RCTs). Besides, we introduced the legislations of the People's Republic of China ensuring quality and safety of products used in TCM. In summary, studies on bioactive compounds from TCM will provide a new approach for better management of atherosclerosis.
Collapse
Affiliation(s)
- Lei Qiao
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Wenqiang Chen
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, Shandong, China.
| |
Collapse
|
13
|
Luo Y, Shang P, Li D. Luteolin: A Flavonoid that Has Multiple Cardio-Protective Effects and Its Molecular Mechanisms. Front Pharmacol 2017; 8:692. [PMID: 29056912 PMCID: PMC5635727 DOI: 10.3389/fphar.2017.00692] [Citation(s) in RCA: 154] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2017] [Accepted: 09/19/2017] [Indexed: 01/14/2023] Open
Abstract
Cardiovascular disease (CVD) has become the leading cause of morbidity and mortality worldwide. A well-monitored diet with a sufficient intake of fruits and vegetables has been confirmed as a primary prevention of CVD. Plant constituents such as flavonoids have been shown to confer healthy benefits. Luteolin (Lut), a kind of flavonoid, possesses anti-oxidative, anti-tumor, and anti-inflammatory properties. Recent scientific literature has reported the cardiac protective effects of Lut in vitro and in vivo. Therefore, the aim of this review is to provide an update and detailed overview with cardio-protective molecular mechanisms of Lut with a focus on multiple intrinsic and extrinsic effectors. We further explore how these mechanisms participate in ischemia/reperfusion (I/R) injury, heart failure (HF) and atherosclerosis (AS). A proper understanding of the cardiovascular protective effects and the relative mechanisms of Lut may provide the possibility of new drug design and development for CVD. With the previous studies mainly focused on basic research, we need to advance the prospects of its further clinical utilization against CVD, large prospective clinical trials of Lut are needed to observe its therapeutic effects on patients with I/R injury, HF and AS, especially on the effective therapeutic dosage, and safety of long-term administration.
Collapse
Affiliation(s)
- Yuanyuan Luo
- The First Clinical College, Nanjing University of Chinese Medicine, Nanjing, China.,The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Pingping Shang
- Institute of Cardiovascular Disease Research, Xuzhou Medical University, Xuzhou, China
| | - Dongye Li
- The First Clinical College, Nanjing University of Chinese Medicine, Nanjing, China.,The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China.,Institute of Cardiovascular Disease Research, Xuzhou Medical University, Xuzhou, China
| |
Collapse
|
14
|
Roles of Cells from the Arterial Vessel Wall in Atherosclerosis. Mediators Inflamm 2017; 2017:8135934. [PMID: 28680196 PMCID: PMC5478858 DOI: 10.1155/2017/8135934] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 04/26/2017] [Accepted: 05/02/2017] [Indexed: 02/07/2023] Open
Abstract
Atherosclerosis has been identified as a chronic inflammatory disease of the arterial vessel wall. Accumulating evidence indicates that different cells from the tunica intima, media, adventitia, and perivascular adipose tissue not only comprise the intact and normal arterial vessel wall but also participate all in the inflammatory response of atherosclerosis via multiple intricate pathways. For instance, endothelial dysfunction has historically been considered to be the initiator of the development of atherosclerosis. The migration and proliferation of smooth muscle cells also play a pivotal role in the progression of atherosclerosis. Additionally, the fibroblasts from the adventitia and adipocytes from perivascular adipose tissue have received considerable attention given their special functions that contribute to atherosclerosis. In addition, numerous types of cytokines produced by different cells from the arterial vessel wall, including endothelium-derived relaxing factors, endothelium-derived contracting factors, tumor necrosis factors, interleukin, adhesion molecules, interferon, and adventitium-derived relaxing factors, have been implicated in atherosclerosis. Herein, we summarize the possible roles of different cells from the entire arterial vessel wall in the pathogenesis of atherosclerosis.
Collapse
|
15
|
Seo HH, Kim SW, Lee CY, Lim KH, Lee J, Lim S, Lee S, Hwang KC. 7-cyclopentyl-5-(4-phenoxyphenyl)-7H-pyrrolo[2,3-d] pyrimidin-4-ylamine inhibits the proliferation and migration of vascular smooth muscle cells by suppressing ERK and Akt pathways. Eur J Pharmacol 2017; 798:35-42. [PMID: 28185804 DOI: 10.1016/j.ejphar.2017.02.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2016] [Revised: 01/31/2017] [Accepted: 02/02/2017] [Indexed: 11/26/2022]
Abstract
Excessive vascular smooth muscle cell (VSMC) proliferation and migration after vascular injury significantly contributes to the development of occlusive vascular disease. Therefore, inhibiting the proliferation and migration of VSMCs is a validated therapeutic modality for occlusive vascular disease such as atherosclerosis and restenosis. In the present study, we screened chemical compounds for their anti-proliferative effects on VSMCs using multiple approaches, such as MTT assays, wound healing assays, and trans-well migration assays. Our data indicate that 7-cyclopentyl-5-(4-phenoxyphenyl)-7H-pyrrolo[2,3-d] pyrimidin-4-ylamine, a lymphocyte-specific protein tyrosine kinase (Lck) inhibitor, significantly inhibited both VSMC proliferation and migration. 7-cyclopentyl-5-(4-phenoxyphenyl)-7H-pyrrolo[2,3-d]pyrimidin-4-ylamine suppresses VSMC proliferation and migration via down-regulating the protein kinase B (Akt) and extracellular signal regulated kinase (ERK) pathways, and it significantly decreased the expression of proliferating cell nuclear antigen (PCNA) and cyclin D1 and, the phosphorylation of retinoblastoma protein (pRb). Additionally, 7-cyclopentyl-5-(4-phenoxyphenyl)-7H-pyrrolo[2,3-d] pyrimidin-4-ylamine suppressed the migration of VSMCs from endothelium-removed aortic rings, as well as neointima formation following rat carotid balloon injury. The present study identified 7-cyclopentyl-5-(4-phenoxyphenyl)-7H-pyrrolo[2,3-d]pyrimidin-4-ylamine as a potent VSMC proliferation and migration inhibitor and warrants further studies to elucidate its more detailed molecular mechanisms, such as its primary target, and to further validate its in vivo efficacy as a therapeutic agent for pathologic vascular conditions, such as restenosis and atherosclerosis.
Collapse
Affiliation(s)
- Hyang-Hee Seo
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University, Seoul, Korea
| | - Sang Woo Kim
- Institute for Bio-Medical Convergence, College of Medicine, Catholic Kwandong University, Gangneung-si, Gangwon-do, Korea
| | - Chang Youn Lee
- Department of Integrated Omics for Biomedical Sciences, Yonsei University, Seoul, Korea
| | - Kyu Hee Lim
- Department of Veterinary Physiology, College of Veterinary Medicine, Chonbuk National University, Jeonju, Jeollabuk-Do, Korea
| | - Jiyun Lee
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University, Seoul, Korea
| | - Soyeon Lim
- Institute for Bio-Medical Convergence, College of Medicine, Catholic Kwandong University, Gangneung-si, Gangwon-do, Korea
| | - Seahyoung Lee
- Institute for Bio-Medical Convergence, College of Medicine, Catholic Kwandong University, Gangneung-si, Gangwon-do, Korea.
| | - Ki-Chul Hwang
- Institute for Bio-Medical Convergence, College of Medicine, Catholic Kwandong University, Gangneung-si, Gangwon-do, Korea.
| |
Collapse
|
16
|
Byon CH, Heath JM, Chen Y. Redox signaling in cardiovascular pathophysiology: A focus on hydrogen peroxide and vascular smooth muscle cells. Redox Biol 2016; 9:244-253. [PMID: 27591403 PMCID: PMC5011184 DOI: 10.1016/j.redox.2016.08.015] [Citation(s) in RCA: 109] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Accepted: 08/23/2016] [Indexed: 02/07/2023] Open
Abstract
Oxidative stress represents excessive intracellular levels of reactive oxygen species (ROS), which plays a major role in the pathogenesis of cardiovascular disease. Besides having a critical impact on the development and progression of vascular pathologies including atherosclerosis and diabetic vasculopathy, oxidative stress also regulates physiological signaling processes. As a cell permeable ROS generated by cellular metabolism involved in intracellular signaling, hydrogen peroxide (H2O2) exerts tremendous impact on cardiovascular pathophysiology. Under pathological conditions, increased oxidase activities and/or impaired antioxidant systems results in uncontrolled production of ROS. In a pro-oxidant environment, vascular smooth muscle cells (VSMC) undergo phenotypic changes which can lead to the development of vascular dysfunction such as vascular inflammation and calcification. Investigations are ongoing to elucidate the mechanisms for cardiovascular disorders induced by oxidative stress. This review mainly focuses on the role of H2O2 in regulating physiological and pathological signals in VSMC.
Collapse
Affiliation(s)
| | - Jack M Heath
- Department of Pathology, Birmingham, AL 35294, USA
| | - Yabing Chen
- Department of Pathology, Birmingham, AL 35294, USA; University of Alabama at Birmingham, and the Birmingham Veterans Affairs Medical Center, Birmingham, AL 35294, USA.
| |
Collapse
|
17
|
Suh KS, Chon S, Choi EM. Luteolin alleviates methylglyoxal-induced cytotoxicity in osteoblastic MC3T3-E1 cells. Cytotechnology 2016; 68:2539-2552. [PMID: 27221336 DOI: 10.1007/s10616-016-9977-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Accepted: 04/22/2016] [Indexed: 01/01/2023] Open
Abstract
Methylglyoxal (MG), a reactive sugar-derived metabolite, exerts harmful effects by inducing oxidative stress, which aggravates a series of diabetic complications, including osteoporosis. The present study was performed to examine the effects of luteolin, a dietary polyphenolic flavonoid, on MG-induced cytotoxicity in MC3T3-E1 osteoblastic cells. Pretreatment of MC3T3-E1 osteoblastic cells with luteolin prevented MG-induced cell death and production of tumor necrosis factor-alpha, intracellular reactive oxygen species, mitochondrial superoxide, and cardiolipin peroxidation. In addition, luteolin increased the levels of glutathione and nuclear factor erythroid 2-related factor 2 (Nrf2) and decreased the inhibition of heme oxygenase-1 activity by MG. Pretreatment with luteolin prior to MG exposure reduced MG-induced mitochondrial dysfunction and increased the peroxisome proliferator-activated receptor γ co-activator 1α (PGC-1α) and nitric oxide levels, suggesting that luteolin may induce mitochondrial biogenesis. Taken together, these observations indicated that luteolin has potential as a preventive agent against the development of diabetic osteopathy related to MG-induced oxidative stress in diabetes.
Collapse
Affiliation(s)
- Kwang Sik Suh
- Research Institute of Endocrinology, Kyung Hee University Hospital, 1, Hoegi-dong, Dongdaemun-gu, Seoul, 130-702, South Korea
| | - Suk Chon
- Department of Endocrinology and Metabolism, School of Medicine, Kyung Hee University, 1, Hoegi-dong, Dongdaemun-gu, Seoul, 130-701, South Korea
| | - Eun Mi Choi
- Department of Endocrinology and Metabolism, School of Medicine, Kyung Hee University, 1, Hoegi-dong, Dongdaemun-gu, Seoul, 130-701, South Korea.
| |
Collapse
|
18
|
Jin L, Zhao X, Qin Y, Zhu W, Zhang W, Liu A, Luo Z. Soy isoflavones protect against H₂O₂-induced injury in human umbilical vein endothelial cells. Mol Med Rep 2015; 12:4476-4482. [PMID: 26095641 DOI: 10.3892/mmr.2015.3949] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2014] [Accepted: 05/19/2015] [Indexed: 11/05/2022] Open
Abstract
The aim of this study was to investigate the effects of soy isoflavones on the injury of human umbilical vein endothelial cells induced by H2O2. EVC‑304 cells were preincubated with soy isoflavones for 12 h, and then exposed to 100 µM H2O2 for 1 h. Cell viability was evaluated by a 3‑(4,5‑di‑methylthiazol‑2‑yl) 2,5‑diphenyltetrazolium bromide assay. The apoptosis of EVC‑304 cells was detected by Hoechst 33258 and Annexin‑V/propidium iodide staining. The oxidative stress‑related biochemical parameters were detected and the expression of apoptosis‑related proteins was examined by western blot analysis. The results showed that incubation with soy isoflavones caused a significant increase in the viability of EVC‑304 cells and a decrease in cell apoptosis induced by H2O2. Soy isoflavones also markedly enhanced the activities of superoxide dismutase and glutathione peroxidase, and reduced the level of malondialdehyde. Western blot analysis results show that soy isoflavones can modulate the activation of nuclear factor‑κB and the mitochondria‑mediated apoptosis signaling pathway. The results of this study indicated the potential biological relevance of soy isoflavones in the therapy of cardiovascular diseases.
Collapse
Affiliation(s)
- Lianhai Jin
- Department of Psychology, Jilin Medical College, Jilin 132013, P.R. China
| | - Xingyu Zhao
- Department of Psychology, Jilin Medical College, Jilin 132013, P.R. China
| | - Yingxin Qin
- Department of Psychology, Jilin Medical College, Jilin 132013, P.R. China
| | - Wenhe Zhu
- Department of Psychology, Jilin Medical College, Jilin 132013, P.R. China
| | - Wei Zhang
- Department of Psychology, Jilin Medical College, Jilin 132013, P.R. China
| | - Anheng Liu
- Department of Cardiology, 307 Hospital of PLA, Academy of Military Medical Sciences, Beijing 100071, P.R. China
| | - Zhengli Luo
- Department of Psychology, Jilin Medical College, Jilin 132013, P.R. China
| |
Collapse
|
19
|
Luteolin Inhibits Angiotensin II-Stimulated VSMC Proliferation and Migration through Downregulation of Akt Phosphorylation. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:931782. [PMID: 26347796 PMCID: PMC4546982 DOI: 10.1155/2015/931782] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Accepted: 07/09/2015] [Indexed: 12/15/2022]
Abstract
Luteolin is a naturally occurring flavonoid found in many plants that possesses cardioprotective properties. The purpose of this study was to elucidate the effect of luteolin on vascular smooth muscle cells (VSMCs) proliferation and migration induced by Angiotensin II (Ang II) and to investigate the mechanism(s) of action of this compound. Rat VSMCs were cultured in vitro, and the proliferation and migration of these cells following Ang II stimulation were monitored. Different doses of luteolin were added to VSMC cultures, and the proliferation and migration rate were observed by MTT and Transwell chamber assays, respectively. In addition, the expressions of p-Akt (308), p-Akt (473), and proliferative cell nuclear antigen (PCNA) in VSMCs were monitored by Western blotting. This study demonstrated that luteolin has an inhibitory effect on Ang II-induced VSMC proliferation and migration. Further, the levels of p-Akt (308), p-Akt (473), and PCNA were reduced in VSMCs treated with both Ang II and luteolin compared to VSMCs treated with only Ang II. These findings strongly suggest that luteolin inhibits Ang II-stimulated proliferation and migration of VSMCs, which is partially due to downregulation of the Akt signaling pathway.
Collapse
|
20
|
Ru X, Zheng C, Zhao Q, Lan HY, Huang Y, Wan S, Mori Y, Yao X. Transient receptor potential channel M2 contributes to neointimal hyperplasia in vascular walls. Biochim Biophys Acta Mol Basis Dis 2015; 1852:1360-71. [DOI: 10.1016/j.bbadis.2015.03.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Revised: 03/21/2015] [Accepted: 03/31/2015] [Indexed: 12/13/2022]
|
21
|
GRID and docking analyses reveal a molecular basis for flavonoid inhibition of Src family kinase activity. J Nutr Biochem 2015; 26:1156-65. [PMID: 26140983 DOI: 10.1016/j.jnutbio.2015.05.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Revised: 05/02/2015] [Accepted: 05/08/2015] [Indexed: 11/21/2022]
Abstract
Flavonoids reduce cardiovascular disease risk through anti-inflammatory, anti-coagulant and anti-platelet actions. One key flavonoid inhibitory mechanism is blocking kinase activity that drives these processes. Flavonoids attenuate activities of kinases including phosphoinositide-3-kinase, Fyn, Lyn, Src, Syk, PKC, PIM1/2, ERK, JNK and PKA. X-ray crystallographic analyses of kinase-flavonoid complexes show that flavonoid ring systems and their hydroxyl substitutions are important structural features for their binding to kinases. A clearer understanding of structural interactions of flavonoids with kinases is necessary to allow construction of more potent and selective counterparts. We examined flavonoid (quercetin, apigenin and catechin) interactions with Src family kinases (Lyn, Fyn and Hck) applying the Sybyl docking algorithm and GRID. A homology model (Lyn) was used in our analyses to demonstrate that high-quality predicted kinase structures are suitable for flavonoid computational studies. Our docking results revealed potential hydrogen bond contacts between flavonoid hydroxyls and kinase catalytic site residues. Identification of plausible contacts indicated that quercetin formed the most energetically stable interactions, apigenin lacked hydroxyl groups necessary for important contacts and the non-planar structure of catechin could not support predicted hydrogen bonding patterns. GRID analysis using a hydroxyl functional group supported docking results. Based on these findings, we predicted that quercetin would inhibit activities of Src family kinases with greater potency than apigenin and catechin. We validated this prediction using in vitro kinase assays. We conclude that our study can be used as a basis to construct virtual flavonoid interaction libraries to guide drug discovery using these compounds as molecular templates.
Collapse
|
22
|
Transport of ginkgolides with different lipophilicities based on an hCMEC/D3 cell monolayer as a blood–brain barrier cell model. Life Sci 2014; 114:93-101. [DOI: 10.1016/j.lfs.2014.08.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Revised: 08/07/2014] [Accepted: 08/08/2014] [Indexed: 12/11/2022]
|
23
|
Zhang T, Kimura Y, Jiang S, Harada K, Yamashita Y, Ashida H. Luteolin modulates expression of drug-metabolizing enzymes through the AhR and Nrf2 pathways in hepatic cells. Arch Biochem Biophys 2014; 557:36-46. [PMID: 24914470 DOI: 10.1016/j.abb.2014.05.023] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2014] [Revised: 05/07/2014] [Accepted: 05/24/2014] [Indexed: 01/06/2023]
Abstract
UNLABELLED Drugs, xenobiotics including environmental pollutants, and certain food components modulate expression of drug-metabolizing enzymes. An aryl hydrocarbon receptor (AhR) possesses possible expression of phase I and phase II enzymes directly by binding of its ligands such as 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) and indirectly by regulating expression of nuclear factor-erythroid-2-related factor 2 (Nrf2). Previous our result demonstrated that luteolin, a natural flavonoid existing in vegetables and herbs, competed the binding of TCDD to AhR. In the present study, we investigated the effect of luteolin on the expression of drug-metabolizing enzymes through the AhR and Nrf2 pathways. Luteolin inhibited TCDD-induced protein expression of phase I enzyme cytochrome P450 1A1 (CYP1A1), phase II enzymes NAD(P)H quinone oxidoreductase-1 (NQO1) and glutathione-S-transferase P1 (GSTP1) in HepG2, Hepa1c1c7 and RL-34 cells in a dose-dependent manner. Luteolin suppressed TCDD- and tert-butylhydroquinone-induced Nrf2 protein by decreasing its stability in HepG2 cells. In tert-butylhydroquinone treated cells, luteolin dose-dependently inhibited NQO1, GSTP1 and aldo-keto reductases (AKRs). Of these, protein expression of CYP1A1 and GSTP1 was mainly dominated by the AhR pathway, while that of NQO1 and AKRs was by the Nrf2 pathway. In conclusion, luteolin inhibits expression of phase I and phase II drug-metabolizing enzymes by modulating the AhR and Nrf2 pathways.
Collapse
Affiliation(s)
- Tianshun Zhang
- Department of Agrobioscience, Graduate School of Agricultural Science, Kobe University, Kobe 657-8501, Japan
| | - Yuki Kimura
- Department of Agrobioscience, Graduate School of Agricultural Science, Kobe University, Kobe 657-8501, Japan
| | - Songyan Jiang
- Department of Agrobioscience, Graduate School of Agricultural Science, Kobe University, Kobe 657-8501, Japan
| | - Kiyonari Harada
- Department of Agrobioscience, Graduate School of Agricultural Science, Kobe University, Kobe 657-8501, Japan
| | - Yoko Yamashita
- Department of Agrobioscience, Graduate School of Agricultural Science, Kobe University, Kobe 657-8501, Japan
| | - Hitoshi Ashida
- Department of Agrobioscience, Graduate School of Agricultural Science, Kobe University, Kobe 657-8501, Japan.
| |
Collapse
|
24
|
Chen D, Liu J, Rui B, Gao M, Zhao N, Sun S, Bi A, Yang T, Guo Y, Yin Z, Luo L. GSTpi protects against angiotensin II-induced proliferation and migration of vascular smooth muscle cells by preventing signal transducer and activator of transcription 3 activation. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2013; 1843:454-63. [PMID: 24321768 DOI: 10.1016/j.bbamcr.2013.11.024] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Revised: 11/20/2013] [Accepted: 11/27/2013] [Indexed: 10/25/2022]
Abstract
Angiotensin II (Ang II)-elicited excessive proliferation, hypertrophy and migration of vascular smooth muscle cells (VSMCs) are vital to the pathogenesis of atheroclerosis. Glutathione S-transferase pi (GSTpi) exists extensively in various kinds of cells and protects cells against different stresses. However, knowledge remains limited about what GSTpi acts in VSMCs. We investigated the effect of GSTpi on Ang II-induced VSMC proliferation, hypertrophy and migration and its latent mechanism. Overexpression and RNAi experiments demonstrated that GSTpi inhibited Ang II-induced proliferation, hypertrophy and migration of VSMCs and arrested progression of cell cycle from G0/G1 to S phase. Immunoprecipitation, mass spectrometry and confocal microscopy analyses showed that GSTpi directly associated with signal transducer and activator of transcription 3 (STAT3) to prevent Ang II-triggered binding of Src to STAT3 and thus suppressed Ang II-stimulated phosphorylation and nuclear translocation of STAT3, as well as cyclin D1 expression. In contrast, GSTpi didn't affect Ang II-activated extracellular signal-regulated kinase (ERK1/2). GSTpi acts as a negative regulator to prevent Ang II-triggered proliferative signaling in VSMCs, suggesting that it may protect vessels against the stresses associated with atherosclerosis formation.
Collapse
Affiliation(s)
- Dan Chen
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210097, People's Republic of China
| | - Jinjiao Liu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210097, People's Republic of China
| | - Bing Rui
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210097, People's Republic of China
| | - Min Gao
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210097, People's Republic of China
| | - Ningwei Zhao
- School of Biotechnology, Royal Institute of Technology, No. 21, Roslagstullsbacken, Stockholm SE-10691, Sweden
| | - Shuai Sun
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210097, People's Republic of China
| | - Aijing Bi
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210097, People's Republic of China
| | - Tingting Yang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210097, People's Republic of China
| | - Yingtao Guo
- Jiangsu Province Key Laboratory for Molecular and Medicine Biotechnology, College of Life Science, Nanjing Normal University, Nanjing 210046, People's Republic of China
| | - Zhimin Yin
- Jiangsu Province Key Laboratory for Molecular and Medicine Biotechnology, College of Life Science, Nanjing Normal University, Nanjing 210046, People's Republic of China.
| | - Lan Luo
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210097, People's Republic of China.
| |
Collapse
|
25
|
Chlamydia pneumoniae infection promotes vascular smooth muscle cell migration through a Toll-like receptor 2-related signaling pathway. Infect Immun 2013; 81:4583-91. [PMID: 24082081 DOI: 10.1128/iai.01087-13] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
The migration of vascular smooth muscle cells (VSMCs) from the media to the intima is proposed to be a key event in the development of atherosclerosis. Recently, we reported that Chlamydia pneumoniae infection is involved in VSMC migration. However, the exact mechanisms for C. pneumoniae infection-induced VSMC migration are not yet well elucidated. In this study, we examined the role of the Toll-like receptor 2 (TLR2) activation-related signaling pathway in VSMC migration induced by C. pneumoniae infection. An Affymetrix-based gene expression array was conducted to identify the changes of gene expression in rat primary VSMCs (rVSMCs) infected with C. pneumoniae. Both the microarray analysis and quantitative real-time reverse transcription (RT)-PCR revealed that TLR2 mRNA expression was strongly upregulated 12 h after C. pneumoniae infection. RT-PCR and Western blot analysis further showed that the expression levels of TLR2 mRNA and protein significantly increased at the different time points after infection. Immunocytochemical analysis suggested a TLR2 recruitment to the vicinity of C. pneumoniae inclusions. Cell migration assays showed that the TLR2-neutralizing antibody could significantly inhibit C. pneumoniae infection-induced rVSMC migration. In addition, C. pneumoniae infection stimulated Akt phosphorylation at Ser 473, which was obviously suppressed by the PI3K inhibitor LY294002, thereby inhibiting rVSMC migration caused by C. pneumoniae infection. Furthermore, both the infection-induced Akt phosphorylation and rVSMC migration were suppressed by the TLR2-neutralizing antibody. Taken together, these data suggest that C. pneumoniae infection can promote VSMC migration possibly through the TLR2-related signaling pathway.
Collapse
|
26
|
Inhibition of reactive oxygen species generation attenuates TLR4-mediated proinflammatory and proliferative phenotype of vascular smooth muscle cells. J Transl Med 2013; 93:880-7. [PMID: 23774581 DOI: 10.1038/labinvest.2013.79] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Revised: 04/27/2013] [Accepted: 05/20/2013] [Indexed: 02/03/2023] Open
Abstract
Reactive oxygen species (ROS) are associated with inflammation and vasculature dysfunction. This study aimed to investigate the potential role of the ROS on vascular Toll-like receptor 4 (TLR4)-mediated proinflammatory and proliferative phenotype of vascular smooth muscle cells (VSMCs). A wire-induced carotid injury model was used in male TLR4-deficient (TLR4(-/-)) and wild-type C57BL/6J mice to induce neointima formation. In the presence or absence of the ROS scavenger apocynin for 14 days, increased TLR4 and proinflammatory cytokines were observed in wire injury-induced carotid neointima and in platelet-derived growth factor-BB (PDGF-BB)-stimulated VSMCs. The TLR4(-/-) protected the injured carotid from neointimal formation and impaired the cellular proliferation and migration in response to PDGF-BB. Apocynin attenuated intimal hyperplasia. Pre-treatment with apocynin significantly inhibited intracellular ROS generation, accompanied by a significant suppression of TLR4 and proinflammatory cytokines expression, and VSMC proliferation and migration. However, the results were not obvious in TLR4(-/-) condition. These findings highlight the importance of ROS inhibition in TLR4-mediated proinflammatory and proliferative phenotype of VSMCs, and suggest ROS as an essential therapeutic target for TLR4-associated vascular inflammation and vascular diseases.
Collapse
|
27
|
Luteolin inhibits inflammatory responses via p38/MK2/TTP-mediated mRNA stability. Molecules 2013; 18:8083-94. [PMID: 23839113 PMCID: PMC6270260 DOI: 10.3390/molecules18078083] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Revised: 07/03/2013] [Accepted: 07/04/2013] [Indexed: 01/13/2023] Open
Abstract
Luteolin (Lut) is a common dietary flavonoid present in Chinese herbal medicines that has been reported to have important anti-inflammatory properties. The purposes of this study were to observe the inhibition of lipopolysaccharide (LPS)-induced inflammatory responses in bone marrow macrophages (BMM) by Lut, and to examine whether this inhibition involves p38/MK2/TTP-mediated mRNA stability. Lut suppressed the production of tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) in a dose-dependent manner according to enzyme-linked immunosorbent assay (ELISA) analysis. Lut also shortened the half-lives of the TNF-α and IL-6 mRNAs according to real-time PCR analysis. Western blots were performed to assess the activation of p38 and MK2 as well as the expression of TTP. The results indicated that Lut inhibited p38 and MK2 phosphorylation while promoting TTP expression. These results suggest that the anti-inflammatory effects of Lut are partially mediated through p38/MK2/TTP-regulated mRNA stability.
Collapse
|
28
|
Jiang D, Li D, Wu W. Inhibitory effects and mechanisms of luteolin on proliferation and migration of vascular smooth muscle cells. Nutrients 2013; 5:1648-59. [PMID: 23686014 PMCID: PMC3708342 DOI: 10.3390/nu5051648] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Revised: 04/28/2013] [Accepted: 05/03/2013] [Indexed: 11/16/2022] Open
Abstract
Atherosclerosis (AS) is a complicated progress, involving many types of cells. Although the exact mechanisms of progression of atherosclerosis are uncertain, the balance of vascular smooth muscle cells (VSMCs) proliferation and apoptosis appears to play a pivotal role in the pathogenesis and progression of atherosclerosis, and much discussion has been undertaken to elucidate the detailed mechanisms, relevant gene expression and transduction pathways. Drug treatment has focused on ameliorating atherosclerosis. Some researchers have indicated that inhibiting VSMCs proliferation is involved in attenuating atherosclerosis. Luteolin is a kind of flavonoids naturally occurring in many plants and possesses beneficial effects on cardiovascular diseases. Luteolin can reduce VSMCs’ proliferation and migration and this reduction is stimulated by several factors. The aim of this review is to summarize the existing inhibitory effects and mechanisms of luteolin on proliferation and migration of VSMCs, and consider whether luteolin may be a potential candidate for preventing and treating atherosclerosis.
Collapse
Affiliation(s)
- Dehua Jiang
- Research Institute of Cardiovascular Diseases, Xuzhou Medical College, Xuzhou 221002, China.
| | | | | |
Collapse
|
29
|
Inhibition of vascular smooth muscle cell proliferation by Gentiana lutea root extracts. PLoS One 2013; 8:e61393. [PMID: 23637826 PMCID: PMC3630200 DOI: 10.1371/journal.pone.0061393] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2012] [Accepted: 03/08/2013] [Indexed: 12/27/2022] Open
Abstract
Gentiana lutea belonging to the Gentianaceae family of flowering plants are routinely used in traditional Serbian medicine for their beneficial gastro-intestinal and anti-inflammatory properties. The aim of the study was to determine whether aqueous root extracts of Gentiana lutea consisting of gentiopicroside, gentisin, bellidifolin-8-O-glucoside, demethylbellidifolin-8-O-glucoside, isovitexin, swertiamarin and amarogentin prevents proliferation of aortic smooth muscle cells in response to PDGF-BB. Cell proliferation and cell cycle analysis were performed based on alamar blue assay and propidium iodide labeling respectively. In primary cultures of rat aortic smooth muscle cells (RASMCs), PDGF-BB (20 ng/ml) induced a two-fold increase in cell proliferation which was significantly blocked by the root extract (1 mg/ml). The root extract also prevented the S-phase entry of synchronized cells in response to PDGF. Furthermore, PDGF-BB induced ERK1/2 activation and consequent increase in cellular nitric oxide (NO) levels were also blocked by the extract. These effects of extract were due to blockade of PDGF-BB induced expression of iNOS, cyclin D1 and proliferating cell nuclear antigen (PCNA). Docking analysis of the extract components on MEK1, the upstream ERK1/2 activating kinase using AutoDock4, indicated a likely binding of isovitexin to the inhibitor binding site of MEK1. Experiments performed with purified isovitexin demonstrated that it successfully blocks PDGF-induced ERK1/2 activation and proliferation of RASMCs in cell culture. Thus, Gentiana lutea can provide novel candidates for prevention and treatment of atherosclerosis.
Collapse
|