1
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Dong L, Shen Z, Zhang H, Zhang B, Zhou Y, Lv X, Hong X, Liu J, Yang W. Effect of unsoluble corrosion products of WE43 alloys in vitro on macrophages. J Biomed Mater Res A 2024; 112:6-19. [PMID: 37681297 DOI: 10.1002/jbm.a.37601] [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: 02/17/2023] [Revised: 08/06/2023] [Accepted: 08/16/2023] [Indexed: 09/09/2023]
Abstract
Magnesium alloys have been used to manufacture biodegradable implants, bone graft substitutes, and cardiovascular stents. WE43 was the most widely used magnesium alloy. The degradation process begins when the magnesium alloy stent is implanted in the body and comes into contact with body fluid. The degradation products include hydrogen, Mg2+ , local alkaline environment, and unsoluble products. A large number of studies focused on Mg2+ and pH in vitro, and in vivo of magnesium alloys, but few studies on unsoluble corrosion products (UCPs). In this study, UCPs of WE43 alloy were prepared by immersion in vitro, and their effects on macrophages were investigated. The results showed that the unsoluble corrosion products were Mg24Y5, Mg12YNd, and MgCO3 ·3H2 O, which were dose-dependent on the apoptosis and necrosis of macrophages. After phagocytosis of UCPs, macrophages mainly metabolize in lysosome, and autophagy also participates in the metabolism of UCPs. It also decreases mitochondrial membrane potential and increases lysosomes, endoplasmic reticulum stress, and P2X7 receptor activation. These will increase reactive oxygen species (ROS) in cells, activating NLRP3 inflammatory corpuscles, activating the downstream pro-IL18 and pro-IL1β, and converting it to IL-18, and IL-1β. However, its pro-inflammatory effect is far lower than that of the classical Lipopolysaccharide (LPS) pro-inflammatory pathway. This work has increased our understanding of magnesium alloy metabolism and provides new ideas for the clinical application of magnesium alloys.
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Affiliation(s)
- Li Dong
- Department of Cardiology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Zhiyuan Shen
- Department of Cardiology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Huidi Zhang
- Department of Cardiology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Binmei Zhang
- Department of Cardiology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yinze Zhou
- Department of Cardiology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xin Lv
- Department of Cardiology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xiaojian Hong
- Department of Cardiology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jiaren Liu
- Department of Clinical Lab, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Wei Yang
- Department of Cardiology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
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2
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Wu M, Xun M, Chen Y. Adaptation of Vascular Smooth Muscle Cell to Degradable Metal Stent Implantation. ACS Biomater Sci Eng 2023. [PMID: 37364226 DOI: 10.1021/acsbiomaterials.3c00637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
Iron-, magnesium-, or zinc-based metal vessel stents support vessel expansion at the period early after implantation and degrade away after vascular reconstruction, eliminating the side effects due to the long stay of stent implants in the body and the risks of restenosis and neoatherosclerosis. However, emerging evidence has indicated that their degradation alters the vascular microenvironment and induces adaptive responses of surrounding vessel cells, especially vascular smooth muscle cells (VSMCs). VSMCs are highly flexible cells that actively alter their phenotype in response to the stenting, similarly to what they do during all stages of atherosclerosis pathology, which significantly influences stent performance. This Review discusses how biodegradable metal stents modify vascular conditions and how VSMCs respond to various chemical, biological, and physical signals attributable to stent implantation. The focus is placed on the phenotypic adaptation of VSMCs and the clinical complications, which highlight the importance of VSMC transformation in future stent design.
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Affiliation(s)
- Meichun Wu
- Hengyang Medical School, University of South China, Hengyang, Hunan 410001, China
- School of Nursing, University of South China, Hengyang, Hunan 410001, China
| | - Min Xun
- Institute of Pharmacy and Pharmacology, School of Pharmaceutical Science, University of South China, Hengyang, Hunan 410001, China
| | - Yuping Chen
- Hengyang Medical School, University of South China, Hengyang, Hunan 410001, China
- Institute of Pharmacy and Pharmacology, School of Pharmaceutical Science, University of South China, Hengyang, Hunan 410001, China
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3
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Zou D, Yang P, Liu J, Dai F, Xiao Y, Zhao A, Huang N. Constructing Mal-Efferocytic Macrophage Model and Its Atherosclerotic Spheroids and Rat Model for Therapeutic Evaluation. Adv Biol (Weinh) 2023; 7:e2200277. [PMID: 36721069 DOI: 10.1002/adbi.202200277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/27/2022] [Indexed: 02/02/2023]
Abstract
Efferocytosis, responsible for apoptotic cell clearance, is an essential factor against atherosclerosis. It is reported that efferocytosis is severely impaired in fibroatheroma, especially in vulnerable thin cap fibroatheroma. However, there is a shortage of studies on efferocytosis defects in cell and animal models. Here, the impacts of oxidized low density lipoprotein (ox-LDL) and glut 1 inhibitor (STF31) on efferocytosis of macrophages are studied, and an evaluation system is constructed. Through regulating the cell ratios and stimulus, three types of atherosclerotic spheroids are fabricated, and a necrotic core emerges with surrounding apoptotic cells. Rat models present a similar phenomenon in that substantial apoptotic cells are uncleared in time in vulnerable plaque, and the model period is shortened to 7 weeks. Mechanism studies reveal that ox-LDL, through mRNA and miRNA modulation, downregulates efferocytosis receptor (PPARγ/LXRα/MerTK), internalization molecule (SLC29a1), and upregulates the competitive receptor CD300a that inhibits efferocytosis receptor-ligand binding process. The foam cell differentiation has also confirmed that CD36 and Lp-PLA2 levels are significantly elevated, and macrophages present an interesting transition into prothrombic phenotype. Collectively, the atherosclerotic models featured by efferocytosis defect provide a comprehensive platform to evaluate the efficacy of medicine and biomaterials for atherosclerosis treatment.
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Affiliation(s)
- Dan Zou
- Key Laboratory for Advanced Technologies of Materials, Ministry of Education, Chengdu, 610031, P. R. China
- School of Material Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, P. R. China
| | - Ping Yang
- Key Laboratory for Advanced Technologies of Materials, Ministry of Education, Chengdu, 610031, P. R. China
- School of Material Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, P. R. China
| | - Jianan Liu
- Key Laboratory for Advanced Technologies of Materials, Ministry of Education, Chengdu, 610031, P. R. China
- School of Material Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, P. R. China
| | - Fanfan Dai
- Key Laboratory for Advanced Technologies of Materials, Ministry of Education, Chengdu, 610031, P. R. China
- School of Material Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, P. R. China
| | - Yangyang Xiao
- Key Laboratory for Advanced Technologies of Materials, Ministry of Education, Chengdu, 610031, P. R. China
- School of Material Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, P. R. China
| | - Ansha Zhao
- Key Laboratory for Advanced Technologies of Materials, Ministry of Education, Chengdu, 610031, P. R. China
- School of Material Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, P. R. China
| | - Nan Huang
- Key Laboratory for Advanced Technologies of Materials, Ministry of Education, Chengdu, 610031, P. R. China
- School of Material Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, P. R. China
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4
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Zou D, Yang P, Liu J, Dai F, Xiao Y, Zhao A, Huang N. Exosome-Loaded Pro-efferocytic Vascular Stent with Lp-PLA 2-Triggered Release for Preventing In-Stent Restenosis. ACS NANO 2022; 16:14925-14941. [PMID: 36066255 DOI: 10.1021/acsnano.2c05847] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The efferocytosis defect is regarded as a pivotal event of atherosclerosis. The failure to clear apoptotic cells in atherosclerotic plaques under vascular stents causes a failure to resolve the inflammation underneath. However, efferocytosis repair is still confined to nonstenting therapeutics. Here, we identified a pro-efferocytotic agent and accordingly developed a bioresponsive pro-efferocytotic vascular stent aimed for poststenting healing. Exosomes derived from mesenchymal stem cells were found to be able to regulate efferocytosis via SLC2a1, STAT3/RAC1, and CD300a pathways and modulate foam cell formation processes through a CD36-mediated pathway. Pro-efferocytotic exosomes were encapsulated into liposome-based multivesicular chambers and grafted onto vascular stents. The multivesicular vesicles were able to release exosomes under the Lp-PLA2 environment. Compared to bare metal stents, exosome-stents in the presence of Lp-PLA2 enhanced the ratio of apoptotic cell clearance and reduced the neointimal thickness in the mal-efferocytotic rat model. Overall, we identified a pro-efferocytic agent─exosomes that are able to regulate target cells via multiple signaling pathways and are good candidates to serve complex pathological environments, and this bioresponsive pro-efferocytotic vascular stent is an attractive approach for prevention of poststenting complications.
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Affiliation(s)
- Dan Zou
- Key Laboratory for Advanced Technologies of Materials, Ministry of Education, School of Material Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P.R. China
| | - Ping Yang
- Key Laboratory for Advanced Technologies of Materials, Ministry of Education, School of Material Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P.R. China
| | - Jianan Liu
- Key Laboratory for Advanced Technologies of Materials, Ministry of Education, School of Material Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P.R. China
| | - Fanfan Dai
- Key Laboratory for Advanced Technologies of Materials, Ministry of Education, School of Material Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P.R. China
| | - Yangyang Xiao
- Key Laboratory for Advanced Technologies of Materials, Ministry of Education, School of Material Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P.R. China
| | - Ansha Zhao
- Key Laboratory for Advanced Technologies of Materials, Ministry of Education, School of Material Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P.R. China
| | - Nan Huang
- Key Laboratory for Advanced Technologies of Materials, Ministry of Education, School of Material Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P.R. China
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5
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Xie Y, Zhang J, Zhang M, Jiang L. [Gly14]-Humanin inhibits an angiotensin II-induced vascular smooth muscle cell phenotypic switch via ameliorating intracellular oxidative stress. Hum Exp Toxicol 2022; 41:9603271221136208. [PMID: 36289015 DOI: 10.1177/09603271221136208] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/08/2023]
Abstract
Angiotensin II (AngII) is involved in the pathogenesis of hypertensive artery remodeling by inducing a phenotypic switch in vascular smooth muscle cells [Gly14]-Humanin (HNG), a humanin analogue, exerts potent cytoprotective effects both in vitro and in vivo. This study aimed to investigate the effects of HNG on an AngII-induced phenotypic switch in VSMCs and the potential mechanisms underlying these effects. The roles of [Gly14]-Humanin in AngII-stimulated VSMCs proliferation and migration was detected by CCK-8 assay, Cell cycle analysis, wound healing assay, trsnswell assay and western blot. The mechanism by which [Gly14]-Humanin regulates VSMC phenotypic switch was determined by intracellular oxidative stress detection, transcriptomic analysis and qRT-PCR. The results showed that HNG inhibited AngII-induced VSMC proliferation and migration and maintained a stable VSMC contractile phenotype. In addition, HNG reduced the level of AngII-induced oxidative stress in vascular smooth muscle cells. This process could be accomplished by inhibiting nicotinamide adenine dinucleotide phosphate oxidase activity. In conclusion, the results suggested that HNG ameliorated intracellular oxidative stress by inhibiting NAD(P)H oxidase activity, thereby suppressing the AngII-induced VSMC phenotype switch. Thus, HNG is a potential drug to ameliorate artery remodeling in hypertension.
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Affiliation(s)
- Yi Xie
- Division of Cardiology, Tongren Hospital, 537229Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jin Zhang
- Division of Cardiology, Tongren Hospital, 537229Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Department of General Surgery, Tongren Hospital, 537229Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Min Zhang
- Division of Cardiology, Tongren Hospital, 537229Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Li Jiang
- Division of Cardiology, Tongren Hospital, 537229Shanghai Jiao Tong University School of Medicine, Shanghai, China
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6
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Meng H, Fan L, Zhang CJ, Zhu L, Liu P, Chen J, Bao X, Pu Z, Zhu MS, Xu Y. Synthetic VSMCs induce BBB disruption mediated by MYPT1 in ischemic stroke. iScience 2021; 24:103047. [PMID: 34553133 PMCID: PMC8441154 DOI: 10.1016/j.isci.2021.103047] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 06/14/2021] [Accepted: 08/24/2021] [Indexed: 12/20/2022] Open
Abstract
Vascular smooth muscle cells (VSMCs) have been widely recognized as key players in regulating blood-brain barrier (BBB) function, and their roles are unclear in ischemic stroke. Myosin phosphatase target subunit 1 (MYPT1) is essential for VSMC contraction and maintaining healthy vasculature. We generated VSMC-specific MYPT1 knockout (MYPT1SMKO) mice and cultured VSMCs infected with Lv-shMYPT1 to explore phenotypic switching of VSMCs and the accompanied impacts on BBB integrity. We found that MYPT1 deficiency induced phenotypic switching of synthetic VSMCs, which aggravated BBB disruption. Proteomic analysis identified evolutionarily conserved signaling intermediates in Toll pathways (ECSIT) as a downstream molecule that promotes activation of synthetic VSMCs and contributed to IL-6 expression. Knocking down ECSIT rescued phenotypic switching of VSMCs and BBB disruption. Additionally, inhibition of IL-6 decreased BBB permeability. These findings reveal that MYPT1 deficiency activated phenotypic switching of synthetic VSMCs and induced BBB disruption through ECSIT-IL-6 signaling after ischemic stroke. MYPT1 deficiency induces activation of synthetic VSMCs and aggravates BBB disruption Synthetic VSMCs release more IL-6 to destroy BBB in a contact-independent way MYPT1-ECSIT-IL-6 signaling pathway regulates synthetic VSMC-mediated BBB disruption
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Affiliation(s)
- Hailan Meng
- Department of Neurology of Drum Tower Hospital, Medical School and the State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210008, China.,Institute of Brain Sciences, Nanjing University, Nanjing 210008, China.,Jiangsu Key Laboratory for Molecular Medicine, Medical School of Nanjing University, Nanjing 210008, China.,Jiangsu Province Stroke Center for Diagnosis and Therapy, Nanjing 210008, China.,Nanjing Neuropsychiatry Clinic Medical Center, Nanjing 210008, China
| | - Lizhen Fan
- Department of Neurology of Drum Tower Hospital, Medical School and the State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210008, China.,Institute of Brain Sciences, Nanjing University, Nanjing 210008, China.,Jiangsu Key Laboratory for Molecular Medicine, Medical School of Nanjing University, Nanjing 210008, China.,Jiangsu Province Stroke Center for Diagnosis and Therapy, Nanjing 210008, China.,Nanjing Neuropsychiatry Clinic Medical Center, Nanjing 210008, China
| | - Cun-Jin Zhang
- Department of Neurology of Drum Tower Hospital, Medical School and the State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210008, China.,Institute of Brain Sciences, Nanjing University, Nanjing 210008, China.,Jiangsu Key Laboratory for Molecular Medicine, Medical School of Nanjing University, Nanjing 210008, China.,Jiangsu Province Stroke Center for Diagnosis and Therapy, Nanjing 210008, China.,Nanjing Neuropsychiatry Clinic Medical Center, Nanjing 210008, China
| | - Liwen Zhu
- Department of Neurology of Drum Tower Hospital, Medical School and the State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210008, China.,Institute of Brain Sciences, Nanjing University, Nanjing 210008, China.,Jiangsu Key Laboratory for Molecular Medicine, Medical School of Nanjing University, Nanjing 210008, China.,Jiangsu Province Stroke Center for Diagnosis and Therapy, Nanjing 210008, China.,Nanjing Neuropsychiatry Clinic Medical Center, Nanjing 210008, China
| | - Pinyi Liu
- Department of Neurology of Drum Tower Hospital, Medical School and the State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210008, China.,Institute of Brain Sciences, Nanjing University, Nanjing 210008, China.,Jiangsu Key Laboratory for Molecular Medicine, Medical School of Nanjing University, Nanjing 210008, China.,Jiangsu Province Stroke Center for Diagnosis and Therapy, Nanjing 210008, China.,Nanjing Neuropsychiatry Clinic Medical Center, Nanjing 210008, China
| | - Jian Chen
- Department of Neurology of Drum Tower Hospital, Medical School and the State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210008, China.,Institute of Brain Sciences, Nanjing University, Nanjing 210008, China.,Jiangsu Key Laboratory for Molecular Medicine, Medical School of Nanjing University, Nanjing 210008, China.,Jiangsu Province Stroke Center for Diagnosis and Therapy, Nanjing 210008, China.,Nanjing Neuropsychiatry Clinic Medical Center, Nanjing 210008, China
| | - Xinyu Bao
- Department of Neurology of Drum Tower Hospital, Medical School and the State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210008, China.,Institute of Brain Sciences, Nanjing University, Nanjing 210008, China.,Jiangsu Key Laboratory for Molecular Medicine, Medical School of Nanjing University, Nanjing 210008, China.,Jiangsu Province Stroke Center for Diagnosis and Therapy, Nanjing 210008, China.,Nanjing Neuropsychiatry Clinic Medical Center, Nanjing 210008, China
| | - Zhijun Pu
- Department of Neurology of Drum Tower Hospital, Medical School and the State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210008, China.,Institute of Brain Sciences, Nanjing University, Nanjing 210008, China.,Jiangsu Key Laboratory for Molecular Medicine, Medical School of Nanjing University, Nanjing 210008, China.,Jiangsu Province Stroke Center for Diagnosis and Therapy, Nanjing 210008, China.,Nanjing Neuropsychiatry Clinic Medical Center, Nanjing 210008, China
| | - Min-Sheng Zhu
- Model Animal Research Center, Nanjing University, Nanjing 210061, China.,Ministry of Education (MOE) Key Laboratory of Model Animal for Disease Study, Nanjing University, Nanjing 210061, China
| | - Yun Xu
- Department of Neurology of Drum Tower Hospital, Medical School and the State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210008, China.,Institute of Brain Sciences, Nanjing University, Nanjing 210008, China.,Jiangsu Key Laboratory for Molecular Medicine, Medical School of Nanjing University, Nanjing 210008, China.,Jiangsu Province Stroke Center for Diagnosis and Therapy, Nanjing 210008, China.,Nanjing Neuropsychiatry Clinic Medical Center, Nanjing 210008, China
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7
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Wu J, Jin L, Tan JY, Chen XF, Wang QQ, Yuan GY, Chen TX. The effects of a biodegradable Mg-based alloy on the function of VSMCs via immunoregulation of macrophages through Mg-induced responses. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:1292. [PMID: 34532429 PMCID: PMC8422083 DOI: 10.21037/atm-21-1375] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 06/24/2021] [Indexed: 12/12/2022]
Abstract
Background Restenosis is one of the worst side effects of percutaneous coronary intervention (PCI) due to neointima formation resulting from the excessive proliferation and migration of vascular smooth muscle cells (VSMCs) and continuous inflammation. Biodegradable Mg-based alloy is a promising candidate material because of its good mechanical properties and biocompatibility, and biodegradation of cardiovascular stents. Although studies have shown reduced neointima formation after Mg-based CVS implantation in vivo, these findings were inconsistent with in vitro studies, demonstrating magnesium-mediated promotion of the proliferation and migration of VSMCs. Given the vital role of activated macrophage-driven inflammation in neointima formation, along with the well-demonstrated crosstalk between macrophages and VSMCs, we investigated the interactions of a biodegradable Mg-Nd-Zn-Zr alloy (denoted JDBM), which is especially important for cardiovascular stents, with VSMCs via macrophages. Methods JDBM extracts and MgCl2 solutions were prepared to study their effect on macrophages. To study the effects of the JDBM extracts and MgCl2 solutions on the function of VSMCs via immunoregulation of macrophages, conditioned media (CM) obtained from macrophages was used to establish a VSMC-macrophage indirect coculture system. Results Our results showed that both JDBM extracts and MgCl2 solutions significantly attenuated the inflammatory response stimulated by lipopolysaccharide (LPS)-activated macrophages and converted macrophages into M2-type cells. In addition, JDBM extracts and MgCl2 solutions significantly decreased the expression of genes related to VSMC phenotypic switching, migration, and proliferation in macrophages. Furthermore, the proliferation, migration, and proinflammatory phenotypic switching of VSMCs were significantly inhibited when the cells were incubated with CMs from macrophages treated with LPS + extracts or LPS + MgCl2 solutions. Conclusions Taken together, our results suggested that the magnesium in the JDBM extract could affect the functions of VSMCs through macrophage-mediated immunoregulation, inhibiting smooth muscle hyperproliferation to suppress restenosis after implantation of a biodegradable Mg-based stent.
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Affiliation(s)
- Jing Wu
- Division of Immunology, Institute of Pediatric Translational Medicine, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Allergy/Immunology Innovation Team, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Department of Rheumatology/Immunology, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Liang Jin
- Division of Immunology, Institute of Pediatric Translational Medicine, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Department of Rheumatology/Immunology, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,College of Life Sciences, Zhejiang Chinese Medical University, Hangzhou, China.,School of Biomedical Engineering, Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, China
| | - Jin-Yun Tan
- Department of Vascular Surgery, Huashan Hospital of Fudan University, Shanghai, China
| | - Xia-Fang Chen
- Division of Immunology, Institute of Pediatric Translational Medicine, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Department of Neonatology, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | | | - Guang-Yin Yuan
- School of Biomedical Engineering, Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, China.,National Engineering Research Center of Light Alloys Net Forming and State Key Laboratory of Metal Matrix Composite, Shanghai Jiao Tong University, Shanghai, China
| | - Tong-Xin Chen
- Division of Immunology, Institute of Pediatric Translational Medicine, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Allergy/Immunology Innovation Team, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Department of Rheumatology/Immunology, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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8
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Jin L, Chen C, Li Y, Yuan F, Gong R, Wu J, Zhang H, Kang B, Yuan G, Zeng H, Chen T. A Biodegradable Mg-Based Alloy Inhibited the Inflammatory Response of THP-1 Cell-Derived Macrophages Through the TRPM7-PI3K-AKT1 Signaling Axis. Front Immunol 2019; 10:2798. [PMID: 31849975 PMCID: PMC6902094 DOI: 10.3389/fimmu.2019.02798] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 11/14/2019] [Indexed: 12/16/2022] Open
Abstract
Mg-based alloys might be ideal biomaterials in clinical applications owing to favorable mechanical properties, biodegradability, biocompatibility, and especially their anti-inflammatory properties. However, the precise signaling mechanism underlying the inhibition of inflammation by Mg-based alloys has not been elucidated. Here, we investigated the effects of a Mg-2.1Nd-0.2Zn-0.5Zr alloy (denoted as JDBM) on lipopolysaccharide (LPS)-induced macrophages. THP-1 cell-derived macrophages were cultured on JDBM, Ti-6Al-4V alloy (Ti), 15% extract of JDBM, and 7.5 mM of MgCl2 for 1 h before the addition of LPS for an indicated time; the experiments included negative and positive controls. Our results showed JDBM, extract, and MgCl2 could decrease LPS-induced tumor necrosis factor (TNF) and interleukin (IL)-6 expression. However, there were no morphologic changes in macrophages on Ti or JDBM. Mechanically, extract and MgCl2 downregulated the expression of toll-like receptor (TLR)-4 and MYD88 compared with the positive control and inhibited LPS-induced nuclear factor-kappa B (NF-κB) and mitogen-activated protein kinase (MAPK) signaling pathways by inactivation of the phosphorylation of IKK-α/β, IKβ-α, P65, P38, and JNK. Additionally, the LPS-induced reactive oxygen species (ROS) expression was also decreased by extract and MgCl2. Interestingly, the expression of LPS-induced TNF and IL-6 could be recovered by knocking down TRPM7 of macrophages, in the presence of extract or MgCl2. Mechanically, the activities of AKT and AKT1 were increased by extract or MgCl2 with LPS and were blocked by a PI3K inhibitor, whereas siRNA TRPM7 inhibited only AKT1. Together, our results demonstrated the degradation products of Mg-based alloy, especially magnesium, and resolved inflammation by activation of the TRPM7-PI3K-AKT1 signaling pathway, which may be a potential advantage or target to promote biodegradable Mg-based alloy applications.
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Affiliation(s)
- Liang Jin
- School of Biomedical Engineering, Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, China
- State Key Laboratory of Metal Matrix Composite, National Engineering Research Center of Light Alloy Net Forming, Shanghai Jiao Tong University, Shanghai, China
- Division of Immunology, Shanghai Children's Medical Center, Institute of Pediatric Translational Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chenxin Chen
- State Key Laboratory of Metal Matrix Composite, National Engineering Research Center of Light Alloy Net Forming, Shanghai Jiao Tong University, Shanghai, China
| | - Yutong Li
- State Key Laboratory of Metal Matrix Composite, National Engineering Research Center of Light Alloy Net Forming, Shanghai Jiao Tong University, Shanghai, China
| | - Feng Yuan
- State Key Laboratory of Metal Matrix Composite, National Engineering Research Center of Light Alloy Net Forming, Shanghai Jiao Tong University, Shanghai, China
| | - Ruolan Gong
- Division of Immunology, Shanghai Children's Medical Center, Institute of Pediatric Translational Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Department of Allergy and Immunology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jing Wu
- Division of Immunology, Shanghai Children's Medical Center, Institute of Pediatric Translational Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hua Zhang
- State Key Laboratory of Metal Matrix Composite, National Engineering Research Center of Light Alloy Net Forming, Shanghai Jiao Tong University, Shanghai, China
| | - Bin Kang
- Department of Orthopaedics, Peking University Shenzhen Hospital of Medicine, Shenzhen, China
| | - Guangyin Yuan
- School of Biomedical Engineering, Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, China
- State Key Laboratory of Metal Matrix Composite, National Engineering Research Center of Light Alloy Net Forming, Shanghai Jiao Tong University, Shanghai, China
| | - Hui Zeng
- Department of Orthopaedics, Peking University Shenzhen Hospital of Medicine, Shenzhen, China
| | - Tongxin Chen
- Division of Immunology, Shanghai Children's Medical Center, Institute of Pediatric Translational Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Department of Allergy and Immunology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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