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Zhao Y, Wang Y, Chen L, Bai L, Guan S. Co-immobilization of natural marine polysaccharides and bioactive peptides on ZE21B magnesium alloy to enhance hemocompatibility and cytocompatibility. Int J Biol Macromol 2024; 272:132747. [PMID: 38821301 DOI: 10.1016/j.ijbiomac.2024.132747] [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: 03/13/2024] [Revised: 05/21/2024] [Accepted: 05/28/2024] [Indexed: 06/02/2024]
Abstract
Degradable magnesium alloy stents are considered to be ideal candidates to replace the traditional non-degradable stents for the treatment of cardiovascular diseases. However, bare magnesium alloy stents usually degrade too fast and show poor hemocompatibility and cytocompatibility, which seriously affects their clinical use. In this study, surface modification based on the MgF2 layer, polydopamine (PDA) coating, fucoidan and CAG peptides was performed on the Mg-Zn-Y-Nd (ZE21B) magnesium alloy with the purpose of improving its corrosion resistance, hemocompatibility and cytocompatibility for vascular stent application. After modification, the ZE21B alloy showed better corrosion resistance. Moreover, the lower hemolysis rate, platelet adhesion and activation, and fibrinogen adsorption and denaturation proved the improved hemocompatibility of modified ZE21B alloy in in vitro blood experiments. Furthermore, the co-immobilization of fucoidan and CAG peptides significantly promoted the adhesion, proliferation, migration and NO release of endothelial cells (ECs) on the modified ZE21B alloy, and meanwhile the modification with fucoidan and CAG peptides inhibited the adhesion and proliferation of smooth muscle cells (SMCs) and suppressed the expression of proinflammatory factors in the macrophages (MAs). The surface modification obviously enhanced the corrosion resistance, hemocompatibility and cytocompatibility of ZE21B alloy, and provided an effective strategy for the development of degradable vascular stents.
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Affiliation(s)
- Yuan Zhao
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China; Henan Key Laboratory of Advanced Magnesium Alloys, Zhengzhou 450002, China
| | - Yahui Wang
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China; Henan Key Laboratory of Advanced Magnesium Alloys, Zhengzhou 450002, China
| | - Lan Chen
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China; Henan Key Laboratory of Advanced Magnesium Alloys, Zhengzhou 450002, China
| | - Lingchuang Bai
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China; Henan Key Laboratory of Advanced Magnesium Alloys, Zhengzhou 450002, China.
| | - Shaokang Guan
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China; Henan Key Laboratory of Advanced Magnesium Alloys, Zhengzhou 450002, China; Key Laboratory of Materials Processing and Mold Technology (Ministry of Education), Zhengzhou 450002, China.
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2
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Yao Y, Yim EKF. Fucoidan for cardiovascular application and the factors mediating its activities. Carbohydr Polym 2021; 270:118347. [PMID: 34364596 PMCID: PMC10429693 DOI: 10.1016/j.carbpol.2021.118347] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 06/12/2021] [Accepted: 06/12/2021] [Indexed: 12/17/2022]
Abstract
Fucoidan is a sulfated polysaccharide with various bioactivities. The application of fucoidan in cancer treatment, wound healing, and food industry has been extensively studied. However, the therapeutic value of fucoidan in cardiovascular diseases has been less explored. Increasing number of investigations in the past years have demonstrated the effects of fucoidan on cardiovascular system. In this review, we will focus on the bioactivities related to cardiovascular applications, for example, the modulation functions of fucoidan on coagulation system, inflammation, and vascular cells. Factors mediating those activities will be discussed in detail. Current therapeutic strategies and future opportunities and challenges will be provided to inspire and guide further research.
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Affiliation(s)
- Yuan Yao
- Department of Chemical Engineering, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada.
| | - Evelyn K F Yim
- Department of Chemical Engineering, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada; Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada; Center for Biotechnology and Bioengineering, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada.
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Heng JW, Yazid MD, Abdul Rahman MR, Sulaiman N. Coatings in Decellularized Vascular Scaffolds for the Establishment of a Functional Endothelium: A Scoping Review of Vascular Graft Refinement. Front Cardiovasc Med 2021; 8:677588. [PMID: 34395554 PMCID: PMC8358320 DOI: 10.3389/fcvm.2021.677588] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 07/06/2021] [Indexed: 12/12/2022] Open
Abstract
Developments in tissue engineering techniques have allowed for the creation of biocompatible, non-immunogenic alternative vascular grafts through the decellularization of existing tissues. With an ever-growing number of patients requiring life-saving vascular bypass grafting surgeries, the production of functional small diameter decellularized vascular scaffolds has never been more important. However, current implementations of small diameter decellularized vascular grafts face numerous clinical challenges attributed to premature graft failure as a consequence of common failure mechanisms such as acute thrombogenesis and intimal hyperplasia resulting from insufficient endothelial coverage on the graft lumen. This review summarizes some of the surface modifying coating agents currently used to improve the re-endothelialization efficiency and endothelial cell persistence in decellularized vascular scaffolds that could be applied in producing a better patency small diameter vascular graft. A comprehensive search yielding 192 publications was conducted in the PubMed, Scopus, Web of Science, and Ovid electronic databases. Careful screening and removal of unrelated publications and duplicate entries resulted in a total of 16 publications, which were discussed in this review. Selected publications demonstrate that the utilization of surface coating agents can induce endothelial cell adhesion, migration, and proliferation therefore leads to increased re-endothelialization efficiency. Unfortunately, the large variance in methodologies complicates comparison of coating effects between studies. Thus far, coating decellularized tissue gave encouraging results. These developments in re-endothelialization could be incorporated in the fabrication of functional, off-the-shelf alternative small diameter vascular scaffolds.
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Affiliation(s)
- Jun Wei Heng
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Muhammad Dain Yazid
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Mohd Ramzisham Abdul Rahman
- Department of Surgery, Hospital Canselor Tuanku Muhriz, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Nadiah Sulaiman
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
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Yang X, Yang Y, Guo J, Meng Y, Li M, Yang P, Liu X, Aung LHH, Yu T, Li Y. Targeting the epigenome in in-stent restenosis: from mechanisms to therapy. MOLECULAR THERAPY-NUCLEIC ACIDS 2021; 23:1136-1160. [PMID: 33664994 PMCID: PMC7896131 DOI: 10.1016/j.omtn.2021.01.024] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Coronary artery disease (CAD) is one of the most common causes of death worldwide. The introduction of percutaneous revascularization has revolutionized the therapy of patients with CAD. Despite the advent of drug-eluting stents, restenosis remains the main challenge in treating patients with CAD. In-stent restenosis (ISR) indicates the reduction in lumen diameter after percutaneous coronary intervention, in which the vessel's lumen re-narrowing is attributed to the aberrant proliferation and migration of vascular smooth muscle cells (VSMCs) and dysregulation of endothelial cells (ECs). Increasing evidence has demonstrated that epigenetics is involved in the occurrence and progression of ISR. In this review, we provide the latest and comprehensive analysis of three separate but related epigenetic mechanisms regulating ISR, namely, DNA methylation, histone modification, and non-coding RNAs. Initially, we discuss the mechanism of restenosis. Furthermore, we discuss the biological mechanism underlying the diverse epigenetic modifications modulating gene expression and functions of VSMCs, as well as ECs in ISR. Finally, we discuss potential therapeutic targets of the small molecule inhibitors of cardiovascular epigenetic factors. A more detailed understanding of epigenetic regulation is essential for elucidating this complex biological process, which will assist in developing and improving ISR therapy.
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Affiliation(s)
- Xi Yang
- Department of Cardiology, The Affiliated Hospital of Qingdao University, Road No. 59 Haier, Qingdao 266100, Shandong, People's Republic of China
| | - Yanyan Yang
- Department of Immunology, School of Basic Medicine, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, People's Republic of China
| | - Junjie Guo
- Department of Cardiology, The Affiliated Hospital of Qingdao University, Road No. 59 Haier, Qingdao 266100, Shandong, People's Republic of China
| | - Yuanyuan Meng
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao 266000, People's Republic of China
| | - Min Li
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, No. 38 Dengzhou Road, Qingdao 266021, People's Republic of China
| | - Panyu Yang
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao 266000, People's Republic of China
| | - Xin Liu
- Department of Cardiology, The Affiliated Hospital of Qingdao University, Road No. 59 Haier, Qingdao 266100, Shandong, People's Republic of China
| | - Lynn Htet Htet Aung
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, No. 38 Dengzhou Road, Qingdao 266021, People's Republic of China
| | - Tao Yu
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao 266000, People's Republic of China.,Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, No. 38 Dengzhou Road, Qingdao 266021, People's Republic of China
| | - Yonghong Li
- Department of Cardiology, The Affiliated Hospital of Qingdao University, Road No. 59 Haier, Qingdao 266100, Shandong, People's Republic of China
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Song JB, Shen J, Fan J, Zhang Z, Yi ZJ, Bai S, Mu XL, Xiao L. Effects of a Matrix Metalloproteinase Inhibitor-Eluting Stent on In-Stent Restenosis. Med Sci Monit 2020; 26:e922556. [PMID: 32214058 PMCID: PMC7119448 DOI: 10.12659/msm.922556] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Background The aim of this study was to compare changes in the extracellular matrix after implantation of a stent that elutes a matrix metalloproteinase (MMP) inhibitor (GM6001); and to determine the effects of the GM6001-eluting stent upon prevention of in-stent restenosis (ISR). Material/Methods We included 48 Guangxi Bama mini-pigs in this study. A GM6001-eluting stent was placed in one iliac artery and a stent that did not elute GM6001 was placed in the contralateral iliac artery. The iliac arteries were removed at 6 hours as well as 1, 7, 14, 56, 84, and 336 days after stent placement. Arteries were analyzed for morphometry, gelatinase content, different phenotypes of vascular smooth muscle cells (VSMCs), collagen content, apoptotic rate, and cell density. Results The vascular lumen areas of the GM6001 group were significantly increased and the neointimal areas were significantly reduced compared with the control group from the 7 days to the 336 days. In the 2 groups, expression of MMP-2 and MMP-9 peaked simultaneously, but GM6001-eluting stents inhibited expression of MMP-2 and MMP-9 in the vascular media and neointima (especially around the struts) significantly. In the GM6001 group, expression of tissue inhibitor of matrix metalloproteinase (TIMP)-1, TIMP-2, myosin heavy chain 10 (MYH-10, marker of the proliferative phenotype of VSMCs), collagen content, percentage of apoptotic cells, and cell density were also decreased significantly compared with those in the control group. Conclusion Use of GM6001-eluting stents resulted in persistent and potent inhibition of intimal hyperplasia, an increase in luminal area, and no obvious thrombosis in the arteries of the mini-pigs.
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Affiliation(s)
- Jian-Bo Song
- Department of Intervention, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning, China (mainland)
| | - Jing Shen
- Department of Intervention, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning, China (mainland).,Department of Intervention, Shanxi Provincial People's Hospital, Taiyuan, Shanxi, China (mainland)
| | - Jun Fan
- Department of Tissue Engineering, China Medical University, Shenyang, Liaoning, China (mainland)
| | - Zhe Zhang
- Department of Intervention, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning, China (mainland)
| | - Zheng-Jia Yi
- Department of Intervention, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning, China (mainland)
| | - Shuo Bai
- Department of Intervention, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning, China (mainland)
| | - Xiao-Lin Mu
- Department of Intervention, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning, China (mainland)
| | - Liang Xiao
- Department of Intervention, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning, China (mainland)
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Zhu B, Ni F, Xiong Q, Yao Z. Marine oligosaccharides originated from seaweeds: Source, preparation, structure, physiological activity and applications. Crit Rev Food Sci Nutr 2020; 61:60-74. [PMID: 31968996 DOI: 10.1080/10408398.2020.1716207] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Marine polysaccharides originated from seaweeds, including agar, alginate, carrageenan, and fucoidan, possess various kinds of physiological activities and have been widely used in food, agricultural and medical areas. However, the application has been greatly limited by their poor solubility and low bioavailability. Thus marine oligosaccharides, as the degradation products of those polysaccharides, have drawn increasing attentions due to their obvious biological activities, good solubility and excellent bioavailability. This review will summarize the recent advances on the source, molecular structure and physiological activity of marine oligosaccharides, emphasizing their application as functional food additives. Furthermore, the relationship between the structure and the physiological activity of marine oligosaccharides is also elucidated and highlighted. The review concludes with an outlook toward potential applications for preparing the functional oligosaccharides in food biotechnology and agriculture fields.
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Affiliation(s)
- Benwei Zhu
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing, P R China
| | - Fang Ni
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing, P R China
| | - Qiang Xiong
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing, P R China
| | - Zhong Yao
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing, P R China
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Marinval N, Morenc M, Labour M, Samotus A, Mzyk A, Ollivier V, Maire M, Jesse K, Bassand K, Niemiec-Cyganek A, Haddad O, Jacob M, Chaubet F, Charnaux N, Wilczek P, Hlawaty H. Fucoidan/VEGF-based surface modification of decellularized pulmonary heart valve improves the antithrombotic and re-endothelialization potential of bioprostheses. Biomaterials 2018; 172:14-29. [DOI: 10.1016/j.biomaterials.2018.01.054] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2017] [Revised: 01/29/2018] [Accepted: 01/29/2018] [Indexed: 12/02/2022]
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Zhou M, Ding Y, Cai L, Wang Y, Lin C, Shi Z. Low molecular weight fucoidan attenuates experimental abdominal aortic aneurysm through interfering the leukocyte-endothelial cells interaction. Mol Med Rep 2018; 17:7089-7096. [PMID: 29568947 PMCID: PMC5928669 DOI: 10.3892/mmr.2018.8765] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Accepted: 03/09/2018] [Indexed: 12/22/2022] Open
Abstract
Low molecular weight fucoidan (LMWF) is a sulfated polysaccharide extracted from Saccharina Japonica that presents high affinity for P-selectin and abolish selectin-dependent recruitment of leukocytes. We hypothesized that dietary intake of LMWF, as a competitive binding agent of P-selectin, could limit the inflammatory infiltration and aneurysmal growth in an Angiotensin II-induced abdominal aortic aneurysm (AAA) mouse model. The Gene Expression Omnibus database was used for gene expressions and gene set enrichment analysis. Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis showed that focal adhesion was involved in the development of AAA. However, dietary intake of LMWF could limit the enlargement of AAA, decreasing maximal aortic diameter and preserving elastin lamellae. Although LMWF did not decrease the circulatory monocytes count and lower the expression of P-selectin in endothelium, it reduced macrophages infiltration in media and adventitia. Furthermore, matrix metalloproteinase expression was markedly downregulated, accompanied with reduced expression of inflammatory mediators, including interleukin 1β, tumor necrosis factor-α and monocyte chemotactic protein-1. The present study revealed a novel target for the treatment of AAA and the anti-inflammatory effects of LMWF.
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Affiliation(s)
- Min Zhou
- Department of Vascular Surgery, Zhongshan Hospital, Institute of Vascular Surgery, Fudan University, Shanghai 200032, P.R. China
| | - Yong Ding
- Department of Vascular Surgery, Zhongshan Hospital, Institute of Vascular Surgery, Fudan University, Shanghai 200032, P.R. China
| | - Liang Cai
- Department of Vascular Surgery, Zhongshan Hospital, Institute of Vascular Surgery, Fudan University, Shanghai 200032, P.R. China
| | - Yonggang Wang
- Department of Vascular Surgery, Zhongshan Hospital, Institute of Vascular Surgery, Fudan University, Shanghai 200032, P.R. China
| | - Changpo Lin
- Department of Vascular Surgery, Zhongshan Hospital, Institute of Vascular Surgery, Fudan University, Shanghai 200032, P.R. China
| | - Zhenyu Shi
- Department of Vascular Surgery, Zhongshan Hospital, Institute of Vascular Surgery, Fudan University, Shanghai 200032, P.R. China
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Wang J, Bao A, Wang Q, Guo H, Zhang Y, Liang J, Kong W, Yao J, Zhang J. Sulfation can enhance antitumor activities of Artemisia sphaerocephala polysaccharide in vitro and vivo. Int J Biol Macromol 2018; 107:502-511. [DOI: 10.1016/j.ijbiomac.2017.09.018] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 09/07/2017] [Accepted: 09/07/2017] [Indexed: 11/30/2022]
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10
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Wang Z, Liu T, Chen X, You H, Zhang Q, Xue J, Zheng Y, Luo D. Low molecular weight fucoidan ameliorates hindlimb ischemic injury in type 2 diabetic rats. JOURNAL OF ETHNOPHARMACOLOGY 2018; 210:434-442. [PMID: 28917976 DOI: 10.1016/j.jep.2017.09.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 08/25/2017] [Accepted: 09/12/2017] [Indexed: 06/07/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Low molecular weight fucoidan (LMWF), extracted from Laminaria japonica Areschoug, is a traditional Chinese medicine, commonly used to alleviate edema, particularly for feet with numbness and pain. AIM OF THE STUDY Diabetic mellitus (DM) patients are at high risk of developing peripheral arterial disease (PAD). Individuals with DM and PAD co-morbidity have a much higher risk of critical limb ischemia. LMWF showed several beneficial effects, such as anti-inflammation, anti-thrombosis, and enhancing revascularization. Therefore, we hypothesized that LMWF might be beneficial to diabetes-induced PAD, and investigated the therapeutic potential of LMWF on diabetic PAD rats. MATERIALS AND METHODS Type 2 diabetic Goto-Kakizaki (GK) rats were made PAD by injection of sodium laurate into femoral artery. LMWF (20, 40 or 80mg/kg/day) or cilostazol (100mg/kg/day) were given to diabetic PAD rats for 4 weeks, respectively. The effects of LMWF on foot ulceration and claudication, plantar blood flow, collateral vessel formation, endothelium morphology, gastrocnemius injury, platelet aggregation, vessel vasodilation, and the expressions of inflammation factors, VEGF, eNOS, and nitric oxide were measured. RESULTS We found that LMWF markedly ameliorated foot ulceration and claudication, and improved the plantar perfusion by reversing hyperreactive platelet aggregation, ameliorating endothelium-dependent vasodilation and revascularization on diabetic PAD rats. In addition, upregulation of several inflammatory factors, such as ICAM-1 and IL-1β in the gastrocnemius muscles of ischemic hindlimb were suppressed by LMWF administration. And eNOS phosphorylation at Ser1177 and NO production were significantly enhanced in LMWF-treated diabetic PAD rats. CONCLUSIONS Taken together, our findings demonstrated that LMWF exhibits therapeutic effect on hindlimb ischemia in type 2 diabetic rats likely through ameliorating endothelium eNOS dysfunction and enhancing revascularization, thus, providing a potential supplementary non-invasive treatment for diabetes-induced PAD.
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Affiliation(s)
- Zhiqiang Wang
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, District of Feng Tai, Street of Youanmenwai, #10 Xi TouTiao, Beijing 100069, PR China
| | - Tiantian Liu
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, District of Feng Tai, Street of Youanmenwai, #10 Xi TouTiao, Beijing 100069, PR China
| | - Xiaoping Chen
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, District of Feng Tai, Street of Youanmenwai, #10 Xi TouTiao, Beijing 100069, PR China
| | - Hongjie You
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, District of Feng Tai, Street of Youanmenwai, #10 Xi TouTiao, Beijing 100069, PR China
| | - Quanbin Zhang
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, PR China
| | - Jingyi Xue
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, District of Feng Tai, Street of Youanmenwai, #10 Xi TouTiao, Beijing 100069, PR China
| | - Yuanyuan Zheng
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, District of Feng Tai, Street of Youanmenwai, #10 Xi TouTiao, Beijing 100069, PR China.
| | - Dali Luo
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, District of Feng Tai, Street of Youanmenwai, #10 Xi TouTiao, Beijing 100069, PR China.
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Su H, Xue G, Ye C, Wang Y, Zhao A, Huang N, Li J. The effect of anti-CD133/fucoidan bio-coatings on hemocompatibility and EPC capture. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 28:2066-2081. [DOI: 10.1080/09205063.2017.1373989] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Hong Su
- Key Laboratory of Advanced Technology for Materials of Chinese Education Ministry, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Guoneng Xue
- Key Laboratory of Advanced Technology for Materials of Chinese Education Ministry, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Changrong Ye
- Key Laboratory of Advanced Technology for Materials of Chinese Education Ministry, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Yan Wang
- Key Laboratory of Advanced Technology for Materials of Chinese Education Ministry, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Ansha Zhao
- Key Laboratory of Advanced Technology for Materials of Chinese Education Ministry, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Nan Huang
- Key Laboratory of Advanced Technology for Materials of Chinese Education Ministry, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Jingan Li
- Key Laboratory of Advanced Technology for Materials of Chinese Education Ministry, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, China
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Peng L, Huang X, Jin X, Jing Z, Yang L, Zhou Y, Ren J, Zhao Y. Wedelolactone, a plant coumarin, prevents vascular smooth muscle cell proliferation and injury-induced neointimal hyperplasia through Akt and AMPK signaling. Exp Gerontol 2017. [PMID: 28634089 DOI: 10.1016/j.exger.2017.06.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Wedelolactone (WDL) is a natural compound derived from Chinese herbal medicine Eclipta prostrate L, and has been reported to exhibit various effects potentially beneficial for human health. However, the possible preventive effects of WDL toward vascular remodeling and mechanisms involved have not been investigated to date. In this study, we investigated the effects of WDL on proliferation induced by platelet-derived growth factor (PDGF) in primary rat aortic smooth muscle cells (VSMCs) and on neointimal hyperplasia resulted from balloon injury in rats. WDL exhibited strong inhibitory effects against PDGF-induced VSMC proliferation. Cell cycle analysis revealed that WDL induced G0/G1 arrest and prevented cell cycle from entering S phase. Immunoblot analysis suggested that the cell cycle arrest induced by WDL was through Akt suppression and adenosine 5'-monophosphate-activated protein kinase (AMPK) activation, with a subsequent cyclin-dependent kinase inhibitor p21 induction and cyclin D1 inhibition. We also observed that WDL notably reduced neointima-to-media area ratio of balloon-injured rat common carotid arteries (CCAs) in comparison with those untreated balloon-injured CCAs. The regulation of WDL on protein expressions of Akt, AMPK and cyclin D1 in vivo were also consistent with that in vitro. Taken together, our results suggest WDL exhibits potential preventive effects toward vascular remodeling and neointimal hyperplasia through the reduction of VSMC proliferation via inhibition of Akt and activation of AMPK.
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Affiliation(s)
- Lu Peng
- Medical College, Xiamen University, Xiamen 361000, China
| | - Xuefeng Huang
- Zhongshan Hospital, Xiamen University, Xiamen 361000, China
| | - Xin Jin
- Medical College, Xiamen University, Xiamen 361000, China
| | - Zuo Jing
- Medical College, Xiamen University, Xiamen 361000, China
| | - Lichao Yang
- Medical College, Xiamen University, Xiamen 361000, China
| | - Yu Zhou
- Medical College, Xiamen University, Xiamen 361000, China
| | - Jie Ren
- Medical College, Xiamen University, Xiamen 361000, China
| | - Yun Zhao
- Medical College, Xiamen University, Xiamen 361000, China; Fujian Provincial Key Laboratory of Regenerative Medicine, Xiamen 361000, China.
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Zaporozhets T, Besednova N. Prospects for the therapeutic application of sulfated polysaccharides of brown algae in diseases of the cardiovascular system: review. PHARMACEUTICAL BIOLOGY 2016; 54:3126-3135. [PMID: 27252012 DOI: 10.1080/13880209.2016.1185444] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Revised: 12/22/2015] [Accepted: 04/27/2016] [Indexed: 06/05/2023]
Abstract
CONTEXT Fucoidans are water-soluble, highly sulfated, branched homo- and hetero-polysaccharides derived from the fibrillar cell walls and intercellular spaces of brown seaweeds of the class Phaeophyceae. Fucoidans possess mimetic properties of the natural ligands of protein receptors and regulate functions of biological systems via key signaling molecules. OBJECTIVES The aim of this review was to collect and combine all available scientific literature about the potential use of the fucoidans for diseases of cardiovascular system. MATERIALS AND METHODS The review has been compiled using references from major databases such as Web of Science, PubMed, Scopus, Elsevier, Springer and Google Scholar (up to September 2015). After obtaining all reports from database (a total number is about 580), the papers were carefully analyzed in order to find data related to the topic of this review (129 references). RESULTS An exhaustive survey of literature revealed that fucoidans possess a broad spectrum of biological activity, including anti-coagulant, hypolipidemic, anti-thrombotic, anti-inflammatory, immunomodulatory, anti-tumor, anti-adhesive and anti-hypertensive properties. Numerous investigations of fucoidans in diseases of the cardiovascular system mainly focus on pleiotropic anti-inflammatory effects. Fucoidans also possess pro-angiogenic and pro-vasculogenic properties. CONCLUSION A great number of investigations in the past years have demonstrated that fucoidans has great potential for in-depth investigation of their effects on cardiovascular system. Through this review, the authors hope to attract the attention of researchers to use fucoidan as mimetic of natural ligand receptor protein with the view of developing new formulations with an improved therapeutic value.
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Affiliation(s)
- Tatyana Zaporozhets
- a Somov Institute of Epidemiology and Microbiology , Vladivostok , Russian Federation
| | - Natalia Besednova
- a Somov Institute of Epidemiology and Microbiology , Vladivostok , Russian Federation
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Marinval N, Saboural P, Haddad O, Maire M, Bassand K, Geinguenaud F, Djaker N, Ben Akrout K, Lamy de la Chapelle M, Robert R, Oudar O, Guyot E, Laguillier-Morizot C, Sutton A, Chauvierre C, Chaubet F, Charnaux N, Hlawaty H. Identification of a Pro-Angiogenic Potential and Cellular Uptake Mechanism of a LMW Highly Sulfated Fraction of Fucoidan from Ascophyllum nodosum. Mar Drugs 2016; 14:E185. [PMID: 27763505 PMCID: PMC5082333 DOI: 10.3390/md14100185] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 09/28/2016] [Accepted: 10/10/2016] [Indexed: 02/04/2023] Open
Abstract
Herein we investigate the structure/function relationships of fucoidans from Ascophyllum nodosum to analyze their pro-angiogenic effect and cellular uptake in native and glycosaminoglycan-free (GAG-free) human endothelial cells (HUVECs). Fucoidans are marine sulfated polysaccharides, which act as glycosaminoglycans mimetics. We hypothesized that the size and sulfation rate of fucoidans influence their ability to induce pro-angiogenic processes independently of GAGs. We collected two fractions of fucoidans, Low and Medium Molecular Weight Fucoidan (LMWF and MMWF, respectively) by size exclusion chromatography and characterized their composition (sulfate, fucose and uronic acid) by colorimetric measurement and Raman and FT-IR spectroscopy. The high affinities of fractionated fucoidans to heparin binding proteins were confirmed by Surface Plasmon Resonance. We evidenced that LMWF has a higher pro-angiogenic (2D-angiogenesis on Matrigel) and pro-migratory (Boyden chamber) potential on HUVECs, compared to MMWF. Interestingly, in a GAG-free HUVECs model, LMWF kept a pro-angiogenic potential. Finally, to evaluate the association of LMWF-induced biological effects and its cellular uptake, we analyzed by confocal microscopy the GAGs involvement in the internalization of a fluorescent LMWF. The fluorescent LMWF was mainly internalized through HUVEC clathrin-dependent endocytosis in which GAGs were partially involved. In conclusion, a better characterization of the relationships between the fucoidan structure and its pro-angiogenic potential in GAG-free endothelial cells was required to identify an adapted fucoidan to enhance vascular repair in ischemia.
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Affiliation(s)
- Nicolas Marinval
- Inserm U1148, LVTS, Université Paris 13, Sorbonne Paris Cité, Paris 75018, France.
| | - Pierre Saboural
- Inserm U1148, LVTS, Université Paris 13, Sorbonne Paris Cité, Paris 75018, France.
| | - Oualid Haddad
- Inserm U1148, LVTS, Université Paris 13, Sorbonne Paris Cité, Paris 75018, France.
| | - Murielle Maire
- Inserm U1148, LVTS, Université Paris 13, Sorbonne Paris Cité, Paris 75018, France.
| | - Kevin Bassand
- Inserm U1148, LVTS, Université Paris 13, Sorbonne Paris Cité, Paris 75018, France.
| | - Frederic Geinguenaud
- Laboratoire CSPBAT, CNRS UMR 7244, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, Bobigny F-93017, France.
| | - Nadia Djaker
- Laboratoire CSPBAT, CNRS UMR 7244, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, Bobigny F-93017, France.
| | - Khadija Ben Akrout
- Laboratoire CSPBAT, CNRS UMR 7244, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, Bobigny F-93017, France.
| | - Marc Lamy de la Chapelle
- Laboratoire CSPBAT, CNRS UMR 7244, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, Bobigny F-93017, France.
| | - Romain Robert
- Inserm U1148, LVTS, Université Paris 13, Sorbonne Paris Cité, Paris 75018, France.
| | - Olivier Oudar
- Inserm U1148, LVTS, Université Paris 13, Sorbonne Paris Cité, Paris 75018, France.
| | - Erwan Guyot
- Inserm U1148, LVTS, Université Paris 13, Sorbonne Paris Cité, Paris 75018, France.
- Laboratoire de Biochimie, Hôpital Jean Verdier, Assistance Publique-Hôpitaux de Paris, Bondy 93140, France.
| | - Christelle Laguillier-Morizot
- Inserm U1148, LVTS, Université Paris 13, Sorbonne Paris Cité, Paris 75018, France.
- Laboratoire de Biochimie, Hôpital Jean Verdier, Assistance Publique-Hôpitaux de Paris, Bondy 93140, France.
| | - Angela Sutton
- Inserm U1148, LVTS, Université Paris 13, Sorbonne Paris Cité, Paris 75018, France.
- Laboratoire de Biochimie, Hôpital Jean Verdier, Assistance Publique-Hôpitaux de Paris, Bondy 93140, France.
| | - Cedric Chauvierre
- Inserm U1148, LVTS, Université Paris 13, Sorbonne Paris Cité, Paris 75018, France.
| | - Frederic Chaubet
- Inserm U1148, LVTS, Université Paris 13, Sorbonne Paris Cité, Paris 75018, France.
| | - Nathalie Charnaux
- Inserm U1148, LVTS, Université Paris 13, Sorbonne Paris Cité, Paris 75018, France.
- Laboratoire de Biochimie, Hôpital Jean Verdier, Assistance Publique-Hôpitaux de Paris, Bondy 93140, France.
| | - Hanna Hlawaty
- Inserm U1148, LVTS, Université Paris 13, Sorbonne Paris Cité, Paris 75018, France.
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Xu Y, Zhang Q, Luo D, Wang J, Duan D. Low molecular weight fucoidan modulates P-selectin and alleviates diabetic nephropathy. Int J Biol Macromol 2016; 91:233-40. [PMID: 27234491 DOI: 10.1016/j.ijbiomac.2016.05.081] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 05/09/2016] [Accepted: 05/22/2016] [Indexed: 10/21/2022]
Abstract
Diabetic nephropathy (DN) is a serious microvascular complication that can lead to chronic and end-stage renal failure. It is understood that inflammation is associated with the onset and process of DN. Low molecular weight fucoidan (LMWF) isolated from Saccharina japonica has anti-inflammatory properties. Therefore, this study aimed to explore the mechanism of LMWF in DN model induced by streptozotocin. The biochemical indices levels showed LMWF reduced the DN diagnostic indices to protect renal function. The HE stained sections exhibited LMWF protected normal morphological structures and reduced inflammatory cell infiltration in the kidneys of DN rats. Furthermore, the levels of P-selectin and selectin-dependent inflammatory cytokines resulting from LMWF were obviously decreased at both the transcriptional and protein levels. Thus, our results found that LMWF protected the renal function in DN rats and alleviated inflammation through the modulation of P-selectin and inflammatory cytokines. LMWF may have therapeutic potential against DN.
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Affiliation(s)
- Yingjie Xu
- Key Lab of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Lab for Marine Science and Technology. Qingdao 266071, China; University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Quanbin Zhang
- Key Lab of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Lab for Marine Science and Technology. Qingdao 266071, China; State Key Lab of Seaweed Bioactive Substances, Qingdao 266000, China.
| | - Dali Luo
- Department of Pharmacology, School of Chemical Biology & Pharmaceutical Sciences, Capital Medical University, Beijing 100069, China
| | - Jing Wang
- Key Lab of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Lab for Marine Science and Technology. Qingdao 266071, China
| | - Delin Duan
- Key Lab of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Lab for Marine Science and Technology. Qingdao 266071, China; State Key Lab of Seaweed Bioactive Substances, Qingdao 266000, China.
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Ruddy JM, Ikonomidis JS, Jones JA. Multidimensional Contribution of Matrix Metalloproteinases to Atherosclerotic Plaque Vulnerability: Multiple Mechanisms of Inhibition to Promote Stability. J Vasc Res 2016; 53:1-16. [PMID: 27327039 PMCID: PMC7196926 DOI: 10.1159/000446703] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Accepted: 05/07/2016] [Indexed: 12/17/2022] Open
Abstract
The prevalence of atherosclerotic disease continues to increase, and despite significant reductions in major cardiovascular events with current medical interventions, an additional therapeutic window exists. Atherosclerotic plaque growth is a complex integration of cholesterol penetration, inflammatory cell infiltration, vascular smooth muscle cell (VSMC) migration, and neovascular invasion. A family of matrix-degrading proteases, the matrix metalloproteinases (MMPs), contributes to all phases of vascular remodeling. The contribution of specific MMPs to endothelial cell integrity and VSMC migration in atherosclerotic lesion initiation and progression has been confirmed by the increased expression of these proteases in plasma and plaque specimens. Endogenous blockade of MMPs by the tissue inhibitors of metalloproteinases (TIMPs) may attenuate proteolysis in some regions, but the progression of matrix degeneration suggests that MMPs predominate in atherosclerotic plaque, precipitating vulnerability. Plaque neovascularization also contributes to instability and, coupling the known role of MMPs in angiogenesis to that of atherosclerotic plaque growth, interest in targeting MMPs to facilitate plaque stabilization continues to accumulate. This article aims to review the contributions of MMPs and TIMPs to atherosclerotic plaque expansion, neovascularization, and rupture vulnerability with an interest in promoting targeted therapies to improve plaque stabilization and decrease the risk of major cardiovascular events.
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Affiliation(s)
- Jean Marie Ruddy
- Division of Vascular Surgery, Department of Surgery, Medical University of South Carolina, Charleston, S.C., USA
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Zhang YQ, Tian F, Zhou Y, Chen YD, Li B, Ma Q, Zhang Y. Nicorandil attenuates carotid intimal hyperplasia after balloon catheter injury in diabetic rats. Cardiovasc Diabetol 2016; 15:62. [PMID: 27059601 PMCID: PMC4826484 DOI: 10.1186/s12933-016-0377-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 03/25/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Diabetic patients suffer from undesired intimal hyperplasia after angioplasty. Nicorandil has a trend to reduce the rate of target lesion revascularization. However, whether nicorandil inhibits intimal hyperplasia and the possible mechanisms underlying it remain to be determined. We aimed at assessing the effect of nicorandil on intimal hyperplasia in diabetic rats. METHODS After intraperitoneal injection of streptozotocin (STZ, 50 mg/kg), balloon injury model was established in carotid arteries of diabetic rats. Rats were randomized to vehicle, nicorandil (15 mg/kg/day) or 5-hydroxydecanoate (5-HD, 10 mg/kg/day), a mitochondrial ATP-sensitive potassium channel (mitoKATP channel)-selective antagonist. Perivascular delivery of εPKC siRNA was conducted to determine the role of εPKC pathway in intimal hyperplasia. In hyperglycemia environment (25 mM glucose), primary culture of vascular smooth muscle cells (VSMCs) were treated with nicorandil or 5-HD. Cell proliferation and cell migration were analyzed. RESULTS Intimal hyperplasia significantly increased 14 days after balloon injury in diabetic rats (p < 0.01). Nicorandil inhibited intima development, reduced inflammation and prevented cell proliferation in balloon-injured arteries (p < 0.01). The protective effects of nicorandil were reversed by 5-HD (p < 0.05). εPKC was activated in balloon-injured arteries (p < 0.01). Nicorandil inhibited εPKC activation by opening mitoKATP channel. Perivascular delivery of εPKC siRNA inhibited intimal hyperplasia, inflammation and cell proliferation (p < 0.01). High glucose-induced VSMCs proliferation and migration were inhibited by nicorandil. εPKC activation induced by high glucose was also inhibited by nicorandil and that is partially reversed by 5-HD. εPKC knockdown prevented VSMCs proliferation and migration (p < 0.01). CONCLUSIONS Our study demonstrates that nicorandil inhibits intimal hyperplasia in balloon-injured arteries in diabetic rats. Nicorandil also prevents VSMCs proliferation and migration induced by high glucose. The beneficial effect of nicorandil is conducted via opening mitoKATP channel and inhibiting εPKC activation.
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Affiliation(s)
- Ying Qian Zhang
- Department of Cardiology, Chinese PLA General Hospital, 28 Fuxing Rd, Beijing, 100853, China
| | - Feng Tian
- Department of Cardiology, Chinese PLA General Hospital, 28 Fuxing Rd, Beijing, 100853, China
| | - Ying Zhou
- Department of Cardiology, Chinese PLA General Hospital, 28 Fuxing Rd, Beijing, 100853, China
| | - Yun Dai Chen
- Department of Cardiology, Chinese PLA General Hospital, 28 Fuxing Rd, Beijing, 100853, China.
| | - Bo Li
- Department of Cardiology, Chinese PLA General Hospital, 28 Fuxing Rd, Beijing, 100853, China
| | - Qiang Ma
- Department of Cardiology, Chinese PLA General Hospital, 28 Fuxing Rd, Beijing, 100853, China
| | - Ying Zhang
- Department of Cardiology, Chinese PLA General Hospital, 28 Fuxing Rd, Beijing, 100853, China
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Burchell SR, Iniaghe LO, Zhang JH, Tang J. Fucoidan from Fucus vesiculosus Fails to Improve Outcomes Following Intracerebral Hemorrhage in Mice. ACTA NEUROCHIRURGICA. SUPPLEMENT 2016; 121:191-8. [PMID: 26463947 DOI: 10.1007/978-3-319-18497-5_34] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Intracerebral hemorrhage (ICH) is the most fatal stroke subtype, with no effective therapies. Hematoma expansion and inflammation play major roles in the pathophysiology of ICH, contributing to primary and secondary brain injury, respectively. Fucoidan, a polysaccharide from the brown seaweed Fucus vesiculosus, has been reported to activate a platelet receptor that may function in limiting bleeding, and to exhibit anti-inflammatory effects. As such, the aim of the present study was to examine the effects of fucoidan on hemorrhaging and neurological outcomes after ICH. Male CD-1 mice were subjected to experimental ICH by infusion of bacterial collagenase. Animals were randomly divided into the following groups: sham, ICH + vehicle, ICH + 25 mg/kg fucoidan, ICH + 75 mg/kg fucoidan, and ICH + 100 mg/kg fucoidan. Brain water content, neurobehavioral outcomes, and hemoglobin content were evaluated at 24 h post ICH. Our findings show that fucoidan failed to attenuate the ICH-induced increase in BWC. The neurological deficits that result from ICH also did not differ in the treatment groups at all three doses. Finally, we found that fucoidan had no effect on the hemoglobin content after ICH. We postulate that fucoidan treatment did not improve the measured outcomes after ICH because we used crude fucoidan, which has a high molecular weight, in our study. High-molecular-weight fucoidans are reported to have less therapeutic potential than low molecular weight fucoidans. They have been shown to exhibit anti-coagulant and pro-apoptotic properties, which seem to outweigh their anti-inflammatory and potential procoagulant abilities. We propose that using a low-molecular-weight fucoidan, or fractionating the crude polysaccharide, may be effective in treating ICH. Future studies are needed to confirm this.
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Affiliation(s)
- Sherrefa R Burchell
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA, USA
| | - Loretta O Iniaghe
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA, USA
- Department of Pharmacology and Toxicology, University of Benin, Benin City, Nigeria
| | - John H Zhang
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA, USA
- Department of Neurosurgery, Loma Linda University, Loma Linda, CA, USA
| | - Jiping Tang
- Department of Physiology and Pharmacology, Loma Linda University School of Medicine, Loma Linda, CA, 92350, USA.
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Heparanase and Syndecan-4 Are Involved in Low Molecular Weight Fucoidan-Induced Angiogenesis. Mar Drugs 2015; 13:6588-608. [PMID: 26516869 PMCID: PMC4663543 DOI: 10.3390/md13116588] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Revised: 09/18/2015] [Accepted: 10/19/2015] [Indexed: 12/18/2022] Open
Abstract
Induction of angiogenesis is a potential treatment for chronic ischemia. Low molecular weight fucoidan (LMWF), the sulfated polysaccharide from brown seaweeds, has been shown to promote revascularization in a rat limb ischemia, increasing angiogenesis in vivo. We investigated the potential role of two heparan sulfate (HS) metabolism enzymes, exostosin-2 (EXT2) and heparanase (HPSE), and of two HS-membrane proteoglycans, syndecan-1 and -4 (SDC-1 and SDC-4), in LMWF induced angiogenesis. Our results showed that LMWF increases human vascular endothelial cell (HUVEC) migration and angiogenesis in vitro. We report that the expression and activity of the HS-degrading HPSE was increased after LMWF treatment. The phenotypic tests of LMWF-treated and EXT2- or HPSE-siRNA-transfected cells indicated that EXT2 or HPSE expression significantly affect the proangiogenic potential of LMWF. In addition, LMWF increased SDC-1, but decreased SDC-4 expressions. The effect of LMWF depends on SDC-4 expression. Silencing EXT2 or HPSE leads to an increased expression of SDC-4, providing the evidence that EXT2 and HPSE regulate the SDC-4 expression. Altogether, these data indicate that EXT2, HPSE, and SDC-4 are involved in the proangiogenic effects of LMWF, suggesting that the HS metabolism changes linked to LMWF-induced angiogenesis offer the opportunity for new therapeutic strategies of ischemic diseases.
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Shi M, Yin F, Gu H, Zhu J, Yin X. Tissue Factor Pathway Inhibitor-Coated Stents Inhibit Restenosis in a Rabbit Carotid Artery Model. Cardiovasc Ther 2015; 33:353-9. [PMID: 26280363 DOI: 10.1111/1755-5922.12152] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
INTRODUCTION Our aim was to study the efficacy and safety of tissue factor pathway inhibitor (TFPI)-coated stents in inhibiting restenosis in a rabbit carotid artery model. METHODS Subculture was conducted in aorta smooth muscle cell, which was taken from male Wistar rat, and the 3-5-generation cells were taken for plasmid transfection and cytotoxicity experiment. TFPI microspheres were made of a TFPI plasmid which was enwrapped by poly-l-glutamic acid (PLGA). TFPI-coated stents (n = 7) and bare metal stents (n = 6) were implanted into prepared carotid artery stenosis model of New Zealand white rabbits. The transfection efficiency of TFPI gene and its influence on animal tissue, restenosis inhibition, and biochemical indicator were observed. RESULT Tissue factor pathway inhibitor microspheres can transfect successfully into cells, and present no cytotoxicity. Autopsy results showed no pathological changes in liver and spleen of rabbits after implanting TFPI-coated stents. TFPI gene could transfect and express successfully in vessel wall cells, and thrombus was found in some lumens of bare metal stents group after 7 day, while no such thrombus was observed in coated stents group. Degree of hyperplasia of coronary endarterectomy in bare metal stents group was evidently higher than those in coated stents group. Obvious stent restenosis was discovered only in one case in bare metal stents group (diameter stenosis ≥50%). However, no case in coated stents group showed with stent restenosis. CONCLUSION Tissue factor pathway inhibitor-coated stents could successfully transfect TFPI gene into vessel wall cells, thereby inhibiting restenosis without obvious side effect in the rabbit carotid artery model.
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Affiliation(s)
- Mingyu Shi
- Department of Cardiovasology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Feng Yin
- Department of Cardiovasology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Hongyue Gu
- Department of Cardiovasology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jing Zhu
- Department of Cardiovasology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xinhua Yin
- Department of Cardiovasology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
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Lean QY, Eri RD, Fitton JH, Patel RP, Gueven N. Fucoidan Extracts Ameliorate Acute Colitis. PLoS One 2015; 10:e0128453. [PMID: 26083103 PMCID: PMC4471193 DOI: 10.1371/journal.pone.0128453] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Accepted: 04/27/2015] [Indexed: 12/21/2022] Open
Abstract
Inflammatory bowel diseases (IBD), such as ulcerative colitis and Crohn's disease, are an important cause of morbidity and impact significantly on quality of life. Overall, current treatments do not sustain a long-term clinical remission and are associated with adverse effects, which highlight the need for new treatment options. Fucoidans are complex sulphated, fucose-rich polysaccharides, found in edible brown algae and are described as having multiple bioactivities including potent anti-inflammatory effects. Therefore, the therapeutic potential of two different fucoidan preparations, fucoidan-polyphenol complex (Maritech Synergy) and depyrogenated fucoidan (DPF) was evaluated in the dextran sulphate sodium (DSS) mouse model of acute colitis. Mice were treated once daily over 7 days with fucoidans via oral (Synergy or DPF) or intraperitoneal administration (DPF). Signs and severity of colitis were monitored daily before colons and spleens were collected for macroscopic evaluation, cytokine measurements and histology. Orally administered Synergy and DPF, but not intraperitoneal DPF treatment, significantly ameliorated symptoms of colitis based on retention of body weight, as well as reduced diarrhoea and faecal blood loss, compared to the untreated colitis group. Colon and spleen weight in mice treated with oral fucoidan was also significantly lower, indicating reduced inflammation and oedema. Histological examination of untreated colitis mice confirmed a massive loss of crypt architecture and goblet cells, infiltration of immune cells and oedema, while all aspects of this pathology were alleviated by oral fucoidan. Importantly, in this model, the macroscopic changes induced by oral fucoidan correlated significantly with substantially decreased production of at least 15 pro-inflammatory cytokines by the colon tissue. Overall, oral fucoidan preparations significantly reduce the inflammatory pathology associated with DSS-induced colitis and could therefore represent a novel nutraceutical option for the management of IBD.
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Affiliation(s)
- Qi Ying Lean
- Pharmacy, School of Medicine, University of Tasmania, Hobart, Tasmania, Australia
- University of Technology MARA, Puncak Alam, Selangor, Malaysia
| | - Rajaraman D. Eri
- School of Health Sciences, University of Tasmania, Launceston, Tasmania, Australia
| | | | - Rahul P. Patel
- Pharmacy, School of Medicine, University of Tasmania, Hobart, Tasmania, Australia
| | - Nuri Gueven
- Pharmacy, School of Medicine, University of Tasmania, Hobart, Tasmania, Australia
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Kim BS, Park JY, Kang HJ, Kim HJ, Lee J. Fucoidan/FGF-2 induces angiogenesis through JNK- and p38-mediated activation of AKT/MMP-2 signalling. Biochem Biophys Res Commun 2014; 450:1333-8. [PMID: 25003321 DOI: 10.1016/j.bbrc.2014.06.137] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Accepted: 06/26/2014] [Indexed: 01/25/2023]
Abstract
Angiogenesis is an important biological process in tissue development and repair. Fucoidan has previously been shown to potentiate in vitro tube formation in the presence of basic fibroblast growth factor (FGF-2). However, the underlying molecular mechanism remains largely unknown. This study was designed to investigate the action of fucoidan in angiogenesis in human umbilical vein endothelial cells (HUVECs) and to explore fucoidan-signalling pathways. First, we evaluated the effect of fucoidan on cell proliferation. Matrigel-based tube formation and wound healing assays were performed to investigate angiogenesis. Matrix metalloproteinase-2 (MMP-2) mRNA expression and activity levels were analysed by reverse transcription polymerase chain reaction (RT-PCR) and zymography, respectively. Additionally, phosphorylation of mitogen-activated protein kinases (MAPKs) and protein kinase B (AKT) was detected by Western blot. The results indicate that fucoidan treatment significantly increased cell proliferation in the presence of FGF-2. Moreover, compared to the effect of FGF-2 alone, fucoidan and FGF-2 had a greater effect on tube formation and cell migration, and this effect was found to be synergistic. Furthermore, fucoidan enhanced the phosphorylation of extracellular signal-regulated kinase (ERK), c-Jun N-terminal kinase (JNK), p38, and AKT. MMP-2 activation was also significantly increased. Specific inhibitors of p38 (SB203580) and JNK (SP600125) inhibited tube formation and wound healing, while an ERK inhibitor (PD98059) did not. MMP-2 activation and AKT phosphorylation were also attenuated and associated with the suppression of p38 and JNK phosphorylation, but not with that of ERK. These results indicate that fucoidan, in the presence of FGF-2, induces angiogenesis through AKT/MMP-2 signalling by activating p38 and JNK. These findings provide basic molecular information on the effect of fucoidan on angiogenesis in the presence of FGF-2.
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Affiliation(s)
- Beom Su Kim
- Wonkwang Bone Regeneration Research Institute, Wonkwang University, Iksan, Jeonbuk 570-749, Republic of Korea; Bonecell Biotech Inc., 77, Dunsan-dong, Seo-gu, Daejeon 302-830, Republic of Korea
| | - Ji-Yun Park
- Bonecell Biotech Inc., 77, Dunsan-dong, Seo-gu, Daejeon 302-830, Republic of Korea
| | - Hyo-Jin Kang
- Wonkwang Bone Regeneration Research Institute, Wonkwang University, Iksan, Jeonbuk 570-749, Republic of Korea
| | - Hyung-Jin Kim
- Department of Microbiology, School of Medicine, Wonkwang University, Iksan, Jeonbuk 570-749, Republic of Korea
| | - Jun Lee
- Wonkwang Bone Regeneration Research Institute, Wonkwang University, Iksan, Jeonbuk 570-749, Republic of Korea; Bonecell Biotech Inc., 77, Dunsan-dong, Seo-gu, Daejeon 302-830, Republic of Korea.
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Jang JY, Moon SY, Joo HG. Differential effects of fucoidans with low and high molecular weight on the viability and function of spleen cells. Food Chem Toxicol 2014; 68:234-8. [PMID: 24681238 DOI: 10.1016/j.fct.2014.03.024] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Revised: 03/17/2014] [Accepted: 03/19/2014] [Indexed: 10/25/2022]
Abstract
Fucoidan is an edible sulfated polysaccharide purified from brown algae that has multiple biological activities. However, the effects of fucoidans of different molecular weights on immune cells have not been determined. Thus, we treated spleen cells with low- and high-molecular-weight fucoidans (LMF and HMF, respectively). Viability assays demonstrated that HMF enhanced the viability and prevented the death of spleen cells. Furthermore, functional analysis revealed that HMF significantly increased the production of interferon-γ and nitric oxide. In contrast, LMF had low activity and was relatively toxic to spleen cells. Taken together, these results indicate that HMF makes the greatest contribution to the immunostimulatory activity of fucoidan mixtures. Additionally, fucoidans with different molecular weights may have different effects on the viability and function of immune cells. This study increases our understanding of fucoidans, and may broaden their use in the basic research and clinical fields.
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Affiliation(s)
- Ji-Young Jang
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, Jeju National University, Jeju 690-756, Republic of Korea
| | - Sun-Young Moon
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, Jeju National University, Jeju 690-756, Republic of Korea
| | - Hong-Gu Joo
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, Jeju National University, Jeju 690-756, Republic of Korea.
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Thomas NV, Manivasagan P, Kim SK. Potential matrix metalloproteinase inhibitors from edible marine algae: a review. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2014; 37:1090-100. [PMID: 24780533 DOI: 10.1016/j.etap.2014.04.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2013] [Revised: 04/02/2014] [Accepted: 04/06/2014] [Indexed: 05/27/2023]
Abstract
Matrix metalloproteinases are endopeptidases which belong to the group of metalloproteinases that contribute for the extra-cellular matrix degradation, and several tissue remodeling processes. An imbalance in the regulation of these endopeptidases eventually leads to several severe pathological complications like cancers, cardiac, cartilage, and neurological related diseases. Hence inhibitory substances of metalloproteinases (MMPIs) could prove beneficial in the management of above specified pathological conditions. The available synthetic MMPIs that have been reported until now have few shortcomings and thus many of them could not make to the final clinical trials. Hence a growing interest among researchers on screening of MMPIs from different natural resources is evident and especially natural products from marine origin. As there has been an unparalleled contribution of several biologically active compounds from marine resources that have shown profound applications in nutraceuticals, cosmeceuticals, and pharmaceuticals, we have attempted to discuss the various MMPIs from edible sea-weeds.
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Affiliation(s)
- Noel Vinay Thomas
- Marine Biochemistry Laboratory, Department of Chemistry, Pukyong National University, Busan 608-737, Republic of Korea
| | - Panchanathan Manivasagan
- Marine Biochemistry Laboratory, Department of Chemistry, Pukyong National University, Busan 608-737, Republic of Korea
| | - Se-Kwon Kim
- Marine Biochemistry Laboratory, Department of Chemistry, Pukyong National University, Busan 608-737, Republic of Korea; Marine Bioprocess Research Center, Pukyong National University, Busan 608-737, Republic of Korea.
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25
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Zaporozhets TS, Ermakova SV, Zvyagintseva TN, Besednova NN. Antitumor effects of sulfated polysaccharides produced from marine algae. ACTA ACUST UNITED AC 2014. [DOI: 10.1134/s2079086414020078] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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26
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Thomas NV, Kim SK. Fucoidans from marine algae as potential matrix metalloproteinase inhibitors. ADVANCES IN FOOD AND NUTRITION RESEARCH 2014; 72:177-193. [PMID: 25081083 DOI: 10.1016/b978-0-12-800269-8.00010-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Matrix metalloproteinases are endopeptidases which belong to the group of metalloproteinases that contribute for the extracellular matrix degradation and several tissue remodeling processes. An imbalance in the regulation of these endopeptidases eventually leads to several severe pathological complications like cancers, cardiac, cartilage, and neurological-related diseases. Hence, inhibitory substances of metalloproteinases (MMPIs) could prove beneficial in the management of above specified pathological conditions. The available synthetic MMPIs that have been reported until now have few shortcomings, and thus many of them could not make to the final clinical trials. Hence, a growing interest among researchers on screening of MMPIs from different natural resources is evident and especially natural products from marine origin. As there has been an unparalleled contribution of several biologically active compounds from marine resources that have shown a profound applications in nutraceuticals, cosmeceuticals, and pharmaceuticals, we have attempted to discuss the various MMPIs from edible seaweeds.
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Affiliation(s)
- Noel Vinay Thomas
- Marine Biochemistry Laboratory, Department of Chemistry, Pukyong National University, Busan, South Korea
| | - Se-Kwon Kim
- Department of Marine-bio Convergence Science, Specialized Graduate School Science and Technology Convergence, Marine Bioprocess Research Center, Pukyong National University, Busan, South Korea.
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Fucoidan in a 3D scaffold interacts with vascular endothelial growth factor and promotes neovascularization in mice. Drug Deliv Transl Res 2013; 5:187-97. [DOI: 10.1007/s13346-013-0177-4] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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28
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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: 45] [Impact Index Per Article: 4.1] [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.
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Sheu MJ, Lin HY, Yang YH, Chou CJ, Chien YC, Wu TS, Wu CH. Demethoxycurcumin, a major active curcuminoid from Curcuma longa
, suppresses balloon injury induced vascular smooth muscle cell migration and neointima formation: An in vitro and in vivo study. Mol Nutr Food Res 2013; 57:1586-97. [DOI: 10.1002/mnfr.201200462] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2012] [Revised: 12/14/2012] [Accepted: 12/18/2012] [Indexed: 12/22/2022]
Affiliation(s)
- Ming-Jyh Sheu
- School of Pharmacy; China Medical University; Taichung Taiwan
| | - Hui-Yi Lin
- School of Pharmacy; China Medical University; Taichung Taiwan
| | - Yi-Hsuan Yang
- School of Pharmacy; China Medical University; Taichung Taiwan
| | - Chia-Ju Chou
- School of Pharmacy; China Medical University; Taichung Taiwan
| | - Yi-Chung Chien
- Department of Life Science and Agricultural Biotechnology Center; National Chung Hsing University; Taichung Taiwan
| | - Tian-Shung Wu
- School of Pharmacy; China Medical University; Taichung Taiwan
- Department of Chemistry; National Cheng Kung University; Tainan Taiwan
- Chinese Medicinal Research and Development Center; China Medical University and Hospital; Taichung Taiwan
| | - Chieh-Hsi Wu
- School of Pharmacy; China Medical University; Taichung Taiwan
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30
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Chien YC, Huang GJ, Cheng HC, Wu CH, Sheu MJ. Hispolon attenuates balloon-injured neointimal formation and modulates vascular smooth muscle cell migration via AKT and ERK phosphorylation. JOURNAL OF NATURAL PRODUCTS 2012; 75:1524-1533. [PMID: 22967007 DOI: 10.1021/np3002145] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The pathological mechanism of restenosis is attributed primarily to excessive proliferation and migration of vascular smooth muscle cells (VSMC). The preventive effects of hispolon (1) on balloon injury-induced neointimal formation were investigated, and 1 showed potent activity in inhibiting fetal bovine serum-induced VSMC outgrowth. Hispolon (1) significantly inhibited VSMC migration, as shown by trans-well assays. Compound 1 decreased the expression and secretion of matrix metalloproteinase-2 (MMP-2) and matrix metalloproteinase-9 (MMP-9). The expression of the endogenous inhibitors of these proteins, namely, tissue inhibitors of MMP (TIMP-1 and TIMP-2), increased. The inhibition by noncytotoxic doses of 1 of VSMC migration was through its negative regulatory effects on FAK phosphorylation, ERK1/2 phosphorylation, and PI3K/AKT. These results demonstrate that 1 can inhibit the migration of VSMC by reduced expression of MMP-9 through the suppression of the FAK signaling pathway and of the activity of PI3K/AKT. The data obtained suggest that 1 might block balloon injury-induced neointimal hyperplasia via the inhibition of VSMC proliferation and migration, without inducing apoptosis.
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Affiliation(s)
- Yi-Chung Chien
- Department of Life Science and Agricultural Biotechnology Center, National Chung Hsing University, Taichung 402, Taiwan
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31
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RANTES/CCL5-induced pro-angiogenic effects depend on CCR1, CCR5 and glycosaminoglycans. Angiogenesis 2012; 15:727-44. [PMID: 22752444 DOI: 10.1007/s10456-012-9285-x] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2012] [Accepted: 06/10/2012] [Indexed: 10/28/2022]
Abstract
Atherosclerosis involves angiogenesis and inflammation with the ability of endothelial cells and monocytes to respond to chemokines. We addressed here by in vitro and in vivo approaches, the role of the chemokine Regulated on Activation, Normal T Cell Expressed and Secreted (RANTES)/CCL5 on angiogenesis through its receptors CCR1, CCR5, syndecan-1 (SDC-1), syndecan-4 (SDC-4) and CD-44. Our data demonstrate that RANTES/CCL5 is pro-angiogenic in a rat subcutaneous model. This RANTES/CCL5-activity may be related to the in vitro promotion of endothelial cell migration, spreading and neo-vessel formation. RANTES/CCL5-mediated angiogenesis depends at least partly on Vascular Endothelial Growth Factor (VEGF) secretion by endothelial cells, since this effect is decreased when endothelial cells are incubated with anti-VEGF receptor antibodies. RANTES/CCL5-induced chemotaxis is mediated by matrix metalloproteinase-9. We demonstrate that specific receptors of RANTES/CCL5 such as G protein-coupled receptors CCR1 and CCR5, and heparan sulfate proteoglycans, SDC-1, SDC-4 or CD-44, play a major role in RANTES/CCL5-induced angiogenic effects. By the use of two RANTES/CCL5 mutants, [E66A]-RANTES/CCL5 with impaired ability to oligomerize, and [44AANA47]-RANTES/CCL5 mutated in the main RANTES/CCL5-glycosaminoglycan (GAG) binding site, we demonstrate that chemokine oligomerization and binding to GAGs are essential in RANTES/CCL5-induced angiogenic effects. According to these results, new therapeutic strategies based on RANTES/CCL5 can be proposed for neo-angiogenesis after vascular injury. Mutants of RANTES/CCL5 may also represent an innovative approach to prevent the angiogenesis associated with the formation of atherosclerotic plaque.
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Liu F, Wang J, Chang AK, Liu B, Yang L, Li Q, Wang P, Zou X. Fucoidan extract derived from Undaria pinnatifida inhibits angiogenesis by human umbilical vein endothelial cells. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2012; 19:797-803. [PMID: 22510492 DOI: 10.1016/j.phymed.2012.03.015] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2011] [Revised: 02/24/2012] [Accepted: 03/10/2012] [Indexed: 05/06/2023]
Abstract
In recent years, anti-angiogenic therapy has become an effective strategy for inhibiting tumor growth. Fucoidan is a class of fucose-enriched sulfated polysaccharides found in brown algae, and it is known to have strong anti-tumor property. Using a human umbilical vein endothelial cells (HUVEC)-based cell culture model, the present study investigated the anti-angiogenic activity of fucoidan extracted from the brown seaweed Undaria pinnatifida. Treatment of HUVECs with various concentrations of fucoidan resulted in significant inhibition of cell proliferation, cell migration, tube formation and vascular network formation. However, significant inhibition of cell proliferation only occurred with longer treatment time (48 h instead of 24h or less). About 40% of cell proliferation and cell migration and 61% of tube formation by HUVECs were inhibited by 400 μg/ml fucoidan, the maximum concentration tested. These results appeared to suggest that modulation of angiogenesis by fucoidan might not occur through growth inhibition and apoptosis. Ex vivo angiogenesis assay demonstrated that at 100 μg/ml, fucoidan caused significant reduction in microvessel outgrowth. Western blot and RT-PCR analyses indicated that at 400 μg/ml, fucoidan significantly reduced the expression of the angiogenesis factor VEGF-A in the suppression of angiogenesis activity. Our results showed that fucoidan isolated from U. pinnatifida may have a new therapeutic potential in the prevention angiogenesis-related diseases.
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Affiliation(s)
- Fang Liu
- Department of Biotechnology, Dalian Medical University, Dalian, 116044 Liaoning Province, China
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Abstract
Seaweeds, being prolific sources of bioactive components have garnered
unprecedented interest in recent times. The complex polysaccharides from the brown,
red and green seaweeds possess broad spectrum therapeutic properties. Especially,
the sulfated polysaccharides, viz. fucans,
carrageenans and ulvans have exhibited strong antioxidant, antitumor,
immunostimulatory, anti-inflammatory, pulmonary fibrosis
anticoagulant/antithrombotic, lipid lowering, antiviral, antibacterial,
antiprotozoan, hyperplasia prevention, gastrointestinal, regenerative and nano
medicine applications. Considering the immense biomedical prospects of sulfated
polysaccharides, the profound and emerging functional properties published in recent
times will be discussed here with experimental evidences. The limitations of the
seaweed-derived sulfated polysaccharides in healthcare will be summarized.
Strategies to maximize extraction and bioavailability will be pondered.
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Affiliation(s)
- Seema Patel
- Department of Biotechnology, Lovely Professional University, Jalandhar, 144402 Punjab India
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34
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Abstract
Fucoidan, a sulfated polysaccharide extracted from brown seaweed, is a candidate for the treatment of ischemic diseases. The aim of this study was to measure the therapeutic potential of fucoidan in a rat model of myocardial ischemia-reperfusion injury. Forty rats were submitted to myocardial ischemia-reperfusion injury by transient occlusion of the left coronary artery. Rats were then randomized into 2 groups: fucoidan (5 mg/kg, intramuscularly; n = 20) or control (saline intramuscularly; n = 20) was administered 1 hour before injury and daily thereafter for 1 month. At 1 month, plasma levels of stromal cell-derived factor-1α (SDF-1α) were assessed by enzyme-linked immunosorbent assay kit. Hearts were evaluated by histoimmunochemistry. Fucoidan induced significant antifibrotic effects, reducing the infarct scar size by almost 30% on Sirius red-stained sections (9.45% ± 4.27% vs. 13% ± 5.67% in controls; P = 0.03). Vascular density in the fucoidan group (α-actin, RECA-1, or lectin BS1 stained) was increased by 40% (2.18 ± 0.79 mm vs. 1.49 ± 0.42 mm in controls ×200; P = 0.001). Plasma SDF-1α at 1 month was not significantly different between the 2 groups. However, increased immunostaining density of SDF-1α and vascular endothelial growth factor in fibrotic ischemic tissues was observed in fucoidan-treated animals versus controls. In conclusion, fucoidan enhanced tissue repair in myocardial ischemia-reperfusion by promoting revascularization (in situ vascular endothelial growth factor and SDF-1α overexpression) and limiting fibrosis. Consequently, fucoidan may be useful for myocardial ischemic patients.
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Morya VK, Kim J, Kim EK. Algal fucoidan: structural and size-dependent bioactivities and their perspectives. Appl Microbiol Biotechnol 2012; 93:71-82. [PMID: 22089385 DOI: 10.1007/s00253-011-3666-8] [Citation(s) in RCA: 118] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2011] [Revised: 10/03/2011] [Accepted: 10/22/2011] [Indexed: 11/26/2022]
Abstract
Fucoidan is a complex-sulfated polysaccharide distributed in various marine organisms, and the brown algae are reported as the major producer. The fucoidan is important for their high bioactive properties, like antibacterial, anticoagulant, antiviral, anti-tumor, etc., and many more to be explored. There is a strong archival support for the bioactivity and promising properties of this molecule, which creates a hope for this molecule as future drug against thrombosis and some kind of cancers. Reports other than the above bioactive properties have also been a matter of interest for the design of signal or enzyme-arrested new class of drugs. In the past three decades, the research on isolation, molecular characterization, and screening of biological applications has significantly increased. One major issue associated with this molecule is the higher size and seasonal variation in their chemical composition; to resolve the issue and maintain its bioactivity, a prioritized and literal hydrolysis process is required to be developed. Here, in this mini-review, we have tried to summarize the algal fucoidan research and the bioactivities influenced by their molecular size.
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Affiliation(s)
- V K Morya
- National Research Laboratory of Bioactive Materials, Department of Biological Engineering, Inha University, Incheon, South Korea
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Yang G, Li H, Tang G, Wu L, Zhao K, Cao Q, Xu C, Wang R. Increased neointimal formation in cystathionine gamma-lyase deficient mice: role of hydrogen sulfide in α5β1-integrin and matrix metalloproteinase-2 expression in smooth muscle cells. J Mol Cell Cardiol 2011; 52:677-88. [PMID: 22200376 DOI: 10.1016/j.yjmcc.2011.12.004] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2011] [Revised: 12/05/2011] [Accepted: 12/10/2011] [Indexed: 01/22/2023]
Abstract
The physiological and pathological roles of hydrogen sulfide (H(2)S) in the regulation of cardiovacular functions have been recognized. Vascular smooth muscle cells (SMCs) express cystathionine gamma-lyase (CSE) and produce significant amount of H(2)S. Although growing evidence demonstated the anti-atherosclerotic effect of H(2)S, less is known about the contribution of the endogenous CSE/H(2)S pathway to the development of vascular remodeling. This study investigated the roles of the CSE/H(2)S pathway on SMC migration and neoimtimal formation by using CSE knockout (KO) mice. SMCs and aortic explants isolated from CSE KO mice exhibited more migration and outgrowth compared with that from wild-type (WT) mice, and exogenously applied NaHS (a H(2)S donor) at 100 μM significantly inhibited SMC migration and outgrowth. SMCs became more elongated and spread in the absence of CSE, and fibronectin significantly stimulated adhesion and migration of SMCs from CSE KO mice (KO-SMCs) in comparison with SMCs from WT mice (WT-SMCs). The expressions of α5- and β1-integrins were significantly higher in KO-SMCs, and functional blocking of α5β1-integrin effectively abrogated KO-SMC migration. CSE deficiency also enhanced matrix metalloproteinase-2 (MMP-2) expression, and the selective blocking of MMP-2 decreased KO-SMC migration. NaHS treatment decreased both the expressions of α5- and β1-integrins and MMP-2. We further found that the expressions of α5- and β1-integrins as well as MMP-2, were stimulated by fibronectin, and that the blockage of α5β1-integrin reduced but overexpression of α5β1-integrin induced MMP-2 expression in both WT-SMCs and KO-SMCs. We also noticed that CSE deficiency in mice led to increased neointima formation in carotid arteries 4 weeks after ligation, which were attenuated by NaHS administration. In conclusion, inhibition of SMC migration by H(2)S may be a novel target for the treatment of vascular occlusive disorder.
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Affiliation(s)
- Guangdong Yang
- The School of Kinesiology, Lakehead University, Thunder Bay, Ontario, Canada.
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Zhang LL, Gao CY, Fang CQ, Wang YJ, Gao D, Yao GE, Xiang J, Wang JZ, Li JC. PPAR attenuates intimal hyperplasia by inhibiting TLR4-mediated inflammation in vascular smooth muscle cells. Cardiovasc Res 2011; 92:484-493. [DOI: 10.1093/cvr/cvr238] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
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Important determinants for fucoidan bioactivity: a critical review of structure-function relations and extraction methods for fucose-containing sulfated polysaccharides from brown seaweeds. Mar Drugs 2011; 9:2106-2130. [PMID: 22073012 PMCID: PMC3210621 DOI: 10.3390/md9102106] [Citation(s) in RCA: 422] [Impact Index Per Article: 32.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2011] [Revised: 10/03/2011] [Accepted: 10/13/2011] [Indexed: 02/06/2023] Open
Abstract
Seaweeds—or marine macroalgae—notably brown seaweeds in the class Phaeophyceae, contain fucoidan. Fucoidan designates a group of certain fucose-containing sulfated polysaccharides (FCSPs) that have a backbone built of (1→3)-linked α-l-fucopyranosyl or of alternating (1→3)- and (1→4)-linked α-l-fucopyranosyl residues, but also include sulfated galactofucans with backbones built of (1→6)-β-d-galacto- and/or (1→2)-β-d-mannopyranosyl units with fucose or fuco-oligosaccharide branching, and/or glucuronic acid, xylose or glucose substitutions. These FCSPs offer several potentially beneficial bioactive functions for humans. The bioactive properties may vary depending on the source of seaweed, the compositional and structural traits, the content (charge density), distribution, and bonding of the sulfate substitutions, and the purity of the FCSP product. The preservation of the structural integrity of the FCSP molecules essentially depends on the extraction methodology which has a crucial, but partly overlooked, significance for obtaining the relevant structural features required for specific biological activities and for elucidating structure-function relations. The aim of this review is to provide information on the most recent developments in the chemistry of fucoidan/FCSPs emphasizing the significance of different extraction techniques for the structural composition and biological activity with particular focus on sulfate groups.
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Therapies from fucoidan; multifunctional marine polymers. Mar Drugs 2011; 9:1731-1760. [PMID: 22072995 PMCID: PMC3210604 DOI: 10.3390/md9101731] [Citation(s) in RCA: 215] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2011] [Revised: 09/22/2011] [Accepted: 09/26/2011] [Indexed: 12/22/2022] Open
Abstract
Published research on fucoidans increased three fold between 2000 and 2010. These algal derived marine carbohydrate polymers present numerous valuable bioactivities. This review discusses the role for fucoidan in the control of acute and chronic inflammation via selectin blockade, enzyme inhibition and inhibiting the complement cascade. The recent data on toxicology and uptake of fucoidan is detailed together with a discussion on the comparative activities of fractions of fucoidan from different sources. Recent in vivo, in vitro and clinical research related to diverse clinical needs is discussed. Targets include osteoarthritis, kidney and liver disease, neglected infectious diseases, hemopoietic stem cell modulation, protection from radiation damage and treatments for snake envenomation. In recent years, the production of well characterized reproducible fucoidan fractions on a commercial scale has become possible making therapies from fucoidan a realizable goal.
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