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Nourisa J, Passemiers A, Shakeri F, Omidi M, Helmholz H, Raimondi D, Moreau Y, Tomforde S, Schlüter H, Luthringer-Feyerabend B, Cyron CJ, Aydin RC, Willumeit-Römer R, Zeller-Plumhoff B. Gene regulatory network analysis identifies MYL1, MDH2, GLS, and TRIM28 as the principal proteins in the response of mesenchymal stem cells to Mg 2+ ions. Comput Struct Biotechnol J 2024; 23:1773-1785. [PMID: 38689715 PMCID: PMC11058716 DOI: 10.1016/j.csbj.2024.04.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 04/12/2024] [Accepted: 04/12/2024] [Indexed: 05/02/2024] Open
Abstract
Magnesium (Mg)-based implants have emerged as a promising alternative for orthopedic applications, owing to their bioactive properties and biodegradability. As the implants degrade, Mg2+ ions are released, influencing all surrounding cell types, especially mesenchymal stem cells (MSCs). MSCs are vital for bone tissue regeneration, therefore, it is essential to understand their molecular response to Mg2+ ions in order to maximize the potential of Mg-based biomaterials. In this study, we conducted a gene regulatory network (GRN) analysis to examine the molecular responses of MSCs to Mg2+ ions. We used time-series proteomics data collected at 11 time points across a 21-day period for the GRN construction. We studied the impact of Mg2+ ions on the resulting networks and identified the key proteins and protein interactions affected by the application of Mg2+ ions. Our analysis highlights MYL1, MDH2, GLS, and TRIM28 as the primary targets of Mg2+ ions in the response of MSCs during 1-21 days phase. Our results also identify MDH2-MYL1, MDH2-RPS26, TRIM28-AK1, TRIM28-SOD2, and GLS-AK1 as the critical protein relationships affected by Mg2+ ions. By offering a comprehensive understanding of the regulatory role of Mg2+ ions on MSCs, our study contributes valuable insights into the molecular response of MSCs to Mg-based materials, thereby facilitating the development of innovative therapeutic strategies for orthopedic applications.
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Affiliation(s)
- Jalil Nourisa
- Institute of Material Systems Modeling, Helmholtz Zentrum Hereon, Geesthacht, Germany
| | | | - Farhad Shakeri
- Institute of Medical Biometry, Informatics and Epidemiology, Medical Faculty, University of Bonn, Bonn, Germany
| | - Maryam Omidi
- Institute of Clinical Chemistry/Central Laboratories, University Medical Center Hamburg, Hamburg, Germany
| | - Heike Helmholz
- Institute of Metallic Biomaterials, Helmholtz Zentrum Hereon, Geesthacht, Germany
| | | | | | - Sven Tomforde
- Department of Computer Science, Intelligent Systems, University of Kiel, Kiel, Germany
| | - Hartmuth Schlüter
- Institute of Clinical Chemistry and Laboratory Medicine Diagnostic Center, University of Hamburg, Hamburg, Germany
| | | | - Christian J. Cyron
- Institute of Material Systems Modeling, Helmholtz Zentrum Hereon, Geesthacht, Germany
- Institute for Continuum and Material Mechanics, Hamburg University of Technology, Hamburg, Germany
| | - Roland C. Aydin
- Institute of Material Systems Modeling, Helmholtz Zentrum Hereon, Geesthacht, Germany
- Institute for Continuum and Material Mechanics, Hamburg University of Technology, Hamburg, Germany
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Zhang K, Tian X, Xu P, Peng L, Guang S, Feng J, Xu H. A novel polyhedral oligomeric silsesquioxane nanohybrid fluorescent sensor designed based on an osmotic mechanism for specific detection and intelligent scavenging of magnesium ions. Anal Chim Acta 2023; 1280:341854. [PMID: 37858549 DOI: 10.1016/j.aca.2023.341854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 09/18/2023] [Accepted: 09/27/2023] [Indexed: 10/21/2023]
Abstract
BACKGROUND Mg2+ has long been recognized as one of the most vital cations due to its diverse physiological and pathological roles, making it indispensable in both biomedical and biological research. Organic fluorescent sensors are commonly employed for Mg2+ detection, but they often lack high selectivity and exhibit poor hydrophilicity, limiting their biomedical applications. RESULTS Herein, we introduced a novel organic-inorganic hybrid fluorescence sensor, PFHBS, constructed on the POSS nanoplatforms. The efficient connection between PEGylated POSS and the small molecule sensor FHBS through Click chemistry enhances the selectivity and reduces interference, making this chemical sensor ideal for the accurate detection of Mg2+. Furthermore, the incorporation of POSS amplifies the ligand field effect of FHBS, making it more conducive to Mg2+ capture. The modification of PEG chains enhances the sensor's amphiphilicity, facilitating efficient cell penetration and effective Mg2+ detection at the biological level. SIGNIFICANCE Finally, relying on spontaneous permeation, coupled with its strong ligand field effect and excellent cell permeability, the chemosensor demonstrates the capability to intelligently remove excess Mg2+ from the body. It has been successfully applied to mitigate renal overload resulting from acute Mg2+ poisoning.
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Affiliation(s)
- Kezhen Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, & College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Xiaoyong Tian
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, & College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Peipei Xu
- School of Chemistry, and Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, China
| | - Li Peng
- School of Chemistry, and Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, China
| | - Shanyi Guang
- School of Chemistry, and Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, China.
| | - Jihong Feng
- Department of oncology, Lishui People's Hospital, Sixth Affiliated Hospital of Wenzhou Medical University, Lishui, Zhejiang, 323000, China.
| | - Hongyao Xu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, & College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China.
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Liu X, Li X, Huo S, Lu L, Zhou C, Li Z. Magnesium bioactive glass hybrid functionalized polyetheretherketone with immunomodulatory function to guide cell fate and bone regeneration. Colloids Surf B Biointerfaces 2023; 230:113523. [PMID: 37634286 DOI: 10.1016/j.colsurfb.2023.113523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 08/10/2023] [Accepted: 08/21/2023] [Indexed: 08/29/2023]
Abstract
Polyetheretherketone (PEEK) is being increasingly recognized as a highly promising polymer implant in orthopaedics due to its advantageous biocompatibility, favorable processability, and radiation resistance. Nonetheless, the long-term application of PEEK implants in vivo faces challenges due to unfavorable post-implantation inflammatory and immune reactions, which result in suboptimal osseointegration rates. Hence, biofunctionalizing the surface of PEEK implants emerges as a viable strategy to enhance osseointegration and increase the success rate. In this study, we developed a multifunctional PEEK implant through the in-situ incorporation of chitosan-coated bioactive glass nanoparticles (BGNs). This approach can impart immunomodulatory properties and enhance the potential for osseointegration. The resulting biofunctionalized PEEK material exhibited multiple beneficial effects. For instance, it facilitated M2 phenotypic polarization of macrophages, diminished the expression of inflammatory factors, and enhanced the osteogenic differentiation of bone marrow mesenchymal stem cells (BMSCs) in vitro. Moreover, it exhibited an improved capacity for osseointegration when tested in vivo. The findings of the experiment highlighted the pivotal and complex role of the biofunctionalized PEEK implant in maintaining typical bone immunity and metabolism. The study proposes that the application of chitosan-BGNs presents a straightforward approach to developing multifunctional implants with the ability to promote biomineralization and immunomodulation, specifically tailored for orthopaedic applications.
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Affiliation(s)
- Xuesong Liu
- Department of Ultrasound, Renji Hospital, School of Medicine, Shanghai Jiaotong University, China
| | - Xinyu Li
- Department of Rheumatology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, China
| | - Shicheng Huo
- Department of Orthopedic Surgery, Spine Center, Changzheng Hospital, Navy Medical University, China
| | - Liangjing Lu
- Department of Rheumatology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, China
| | - Chun Zhou
- Orthpaedic Trauma, Department of Orthopedics, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, China.
| | - Zhanyu Li
- Orthpaedic Trauma, Department of Orthopedics, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, China.
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4
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Li H, Feng X, Li H, Ma S, Song W, Yang B, Jiang T, Yang C. The Supplement of Magnesium Element to Inhibit Colorectal Tumor Cells. Biol Trace Elem Res 2023; 201:2895-2903. [PMID: 36006540 PMCID: PMC10073067 DOI: 10.1007/s12011-022-03393-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 08/12/2022] [Indexed: 12/20/2022]
Abstract
Magnesium ions are essential elements to the human body, with a daily intake of about 350 mg for an adult. Recently, a meta-analysis reported that magnesium ion intake is related to a reduced risk of colorectal tumors. In addition, implantation of biodegradable magnesium pins after colorectal tumor resection could potentially inhibit the residual tumor cells. These impressive results implied that magnesium ions possess inhibitory properties against colorectal carcinoma. However, this hypothesis has yet to be confirmed by experimental results. In this work, different concentrations of magnesium ions were modulated to investigate their inhibitory effects on cell viability through cell cycle arrest, subsequently inducing apoptosis by activating the caspase-3 pathway. The animal experiments revealed that magnesium injection restricted tumor growth after 3 weeks of treatment compared to the control group. According to the immunohistochemistry and transmission electron microscopy results, the remarkable effect may be attributed to promoting the apoptotic rate of tumor cells. The evidence highlights the potential for the clinical use of magnesium implants to inhibit the growth of residual cells after colorectal tumor surgery.
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Affiliation(s)
- Heng Li
- Department of Colorectal Surgery, General Hospital of Ningxia Medical University, Yinchuan, 750004, China
| | - Xiaonan Feng
- Department of Nephrology, General Hospital of Ningxia Medical University, Yinchuan, 750004, China
| | - Hai Li
- Department of Colorectal Surgery, General Hospital of Ningxia Medical University, Yinchuan, 750004, China
| | - Shuo Ma
- Department of Colorectal Surgery, General Hospital of Ningxia Medical University, Yinchuan, 750004, China
| | - Wei Song
- Department of Colorectal Surgery, General Hospital of Ningxia Medical University, Yinchuan, 750004, China
| | - Bao Yang
- Department of Colorectal Surgery, General Hospital of Ningxia Medical University, Yinchuan, 750004, China
| | - Tao Jiang
- Department of Colorectal Surgery, General Hospital of Ningxia Medical University, Yinchuan, 750004, China.
| | - Chun Yang
- Department of Colorectal Surgery, General Hospital of Ningxia Medical University, Yinchuan, 750004, China.
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5
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Qin H, Weng J, Zhou B, Zhang W, Li G, Chen Y, Qi T, Zhu Y, Yu F, Zeng H. Magnesium Ions Promote In Vitro Rat Bone Marrow Stromal Cell Angiogenesis Through Notch Signaling. Biol Trace Elem Res 2023; 201:2823-2842. [PMID: 35870071 DOI: 10.1007/s12011-022-03364-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 07/15/2022] [Indexed: 11/02/2022]
Abstract
Bone defects are often caused by trauma or surgery and can lead to delayed healing or even bone nonunion, thereby resulting in impaired function of the damaged site. Magnesium ions and related metallic materials play a crucial role in repairing bone defects, but the mechanism remains unclear. In this study, we induced the angiogenic differentiation of bone marrow stromal cells (BMSCs) with different concentrations of magnesium ions. The mechanism was investigated using γ-secretase inhibitor (DAPT) at different time points (7 and 14 days). Angiogenesis, differentiation, migration, and chemotaxis were detected using the tube formation assay, wound-healing assay, and Transwell assay. Besides, we analyzed mRNA expression and the angiogenesis-related protein levels of genes by RT-qPCR and western blot. We discovered that compared with other concentrations, the 5 mM magnesium ion concentration was more conducive to forming tubes. Additionally, hypoxia-inducible factor 1 alpha (Hif-1α) and endothelial nitric oxide (eNOS) expression both increased (p < 0.05). After 7 and 14 days of induction, 5 mM magnesium ion group tube formation, migration, and chemotaxis were enhanced, and the expression of Notch pathway genes increased. Moreover, expression of the Notch target genes hairy and enhancer of split 1 (Hes1) and Hes5 (hairy and enhancer of split 5), as well as the angiogenesis-related genes Hif-1α and eNOS, were enhanced (p < 0.05). However, these trends did not occur when DAPT was applied. This indicates that 5 mM magnesium ion is the optimal concentration for promoting the angiogenesis and differentiation of BMSCs in vitro. By activating the Notch signaling pathway, magnesium ions up-regulate the downstream genes Hes1 and Hes5 and the angiogenesis-related genes Hif-1α and eNOS, thereby promoting the angiogenesis differentiation of BMSCs. Additionally, magnesium ion-induced differentiation enhances the migration and chemotaxis of BMSCs. Thus, we can conclude that magnesium ions and related metallic materials promote angiogenesis to repair bone defects. This provides the rationale for developing artificial magnesium-containing bone materials through tissue engineering.
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Affiliation(s)
- Haotian Qin
- Department of Bone & Joint Surgery, Peking University Shenzhen Hospital, Shenzhen, 518036, China
- National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen, 518036, China
| | - Jian Weng
- Department of Bone & Joint Surgery, Peking University Shenzhen Hospital, Shenzhen, 518036, China
- National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen, 518036, China
| | - Bo Zhou
- Department of Hand & Microsurgery, Peking University Shenzhen Hospital, Shenzhen, 518036, China
| | - Weifei Zhang
- Department of Bone & Joint Surgery, Peking University Shenzhen Hospital, Shenzhen, 518036, China
- National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen, 518036, China
| | - Guoqing Li
- Department of Bone & Joint Surgery, Peking University Shenzhen Hospital, Shenzhen, 518036, China
- National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen, 518036, China
| | - Yingqi Chen
- Department of Bone & Joint Surgery, Peking University Shenzhen Hospital, Shenzhen, 518036, China
- National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen, 518036, China
| | - Tiantian Qi
- Department of Bone & Joint Surgery, Peking University Shenzhen Hospital, Shenzhen, 518036, China
- National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen, 518036, China
| | - Yuanchao Zhu
- Department of Bone & Joint Surgery, Peking University Shenzhen Hospital, Shenzhen, 518036, China
- National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen, 518036, China
| | - Fei Yu
- Department of Bone & Joint Surgery, Peking University Shenzhen Hospital, Shenzhen, 518036, China.
- National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen, 518036, China.
| | - Hui Zeng
- Department of Bone & Joint Surgery, Peking University Shenzhen Hospital, Shenzhen, 518036, China.
- National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen, 518036, China.
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6
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Wang F, Sun P, Xie E, Ji Y, Niu Y, Li F, Wei J. Phytic acid/magnesium ion complex coating on PEEK fiber woven fabric as an artificial ligament with anti-fibrogenesis and osteogenesis for ligament-bone healing. Biomater Adv 2022; 140:213079. [PMID: 35985068 DOI: 10.1016/j.bioadv.2022.213079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 07/09/2022] [Accepted: 08/08/2022] [Indexed: 06/15/2023]
Abstract
Development of an artificial ligament possessing osteogenic activity to enhance ligament-bone healing for reconstruction of anterior cruciate ligament (ACL) is a great challenge. Herein, polyetheretherketone fibers (PKF) were coated with phytic acid (PA)/magnesium (Mg) ions complex (PKPM), which were woven into fabrics as an artificial ligament. The results demonstrated that PKPM with PA/Mg complex coating exhibited optimized surface properties with improved hydrophilicity and surface energy, and slow release of Mg ions. PKPM significantly enhanced responses of rat bone marrow stem cells in vitro. Moreover, PKPM remarkably promoted M2 macrophage polarization that upregulated production of anti-inflammatory cytokine while inhibited M1 macrophage polarization that downregulated production of pro-inflammatory cytokine in vitro. Further, PKPM inhibited fibrous encapsulation by preventing M1 macrophage polarization while promoted osteogenesis for ligament-bone healing by triggering M2 macrophage polarization in vivo. The results suggested that the downregulation of M1 macrophage polarization for inhibiting fibrogenesis and upregulation of M2 macrophage polarization for improving osteogenesis of PKPM were attributed to synergistic effects of PA and sustained release of Mg ions. In summary, PKPM with PA/Mg complex coating upregulated pro-osteogenic macrophage polarization that supplied a profitable anti-inflammatory environments for osteogenesis and ligament-bone healing, thereby possessing tremendous potential for reconstruction of ACL.
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Affiliation(s)
- Fan Wang
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Material Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Ping Sun
- Department of Orthopaedics, Shanghai Eighth People's Hospital, Shanghai 200235, China
| | - En Xie
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Material Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yinjun Ji
- Department of Orthopaedics, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
| | - Yunfei Niu
- Department of Orthopaedics, Changhai Hospital, Second Military Medical University, Shanghai 200433, China.
| | - Fengqian Li
- Department of Orthopaedics, Shanghai Eighth People's Hospital, Shanghai 200235, China.
| | - Jie Wei
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Material Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
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7
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Yuan Z, Wan Z, Gao C, Wang Y, Huang J, Cai Q. Controlled magnesium ion delivery system for in situ bone tissue engineering. J Control Release 2022; 350:360-376. [PMID: 36002052 DOI: 10.1016/j.jconrel.2022.08.036] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 08/17/2022] [Accepted: 08/17/2022] [Indexed: 10/15/2022]
Abstract
Magnesium cation (Mg2+) has been an emerging therapeutic agent for inducing vascularized bone regeneration. However, the therapeutic effects of current magnesium (Mg) -containing biomaterials are controversial due to the concentration- and stage-dependent behavior of Mg2+. Here, we first provide an overview of biochemical mechanism of Mg2+ in various concentrations and suggest that 2-10 mM Mg2+in vitro may be optimized. This review systematically summarizes and discusses several types of controlled Mg2+ delivery systems based on polymer-Mg composite scaffolds and Mg-containing hydrogels, as well as their design philosophy and several parameters that regulate Mg2+ release. Given that the continuous supply of Mg2+ may prevent biomineral deposition in the later stage of bone regeneration and maturation, we highlight the controlled delivery of Mg2+ based dual- or multi-ions system, especially for the hierarchical therapeutic ion release system, which shows enhanced biomineralization. Finally, the remaining challenges and perspectives of Mg-containing biomaterials for future in situ bone tissue engineering are discussed as well.
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Affiliation(s)
- Zuoying Yuan
- Department of Mechanics and Engineering Science, College of Engineering, Peking University, Beijing 100871, China
| | - Zhuo Wan
- Department of Mechanics and Engineering Science, College of Engineering, Peking University, Beijing 100871, China; Beijing Innovation Centre for Engineering Science and Advanced Technology, Peking University, Beijing 100871, China
| | - Chenyuan Gao
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yue Wang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jianyong Huang
- Department of Mechanics and Engineering Science, College of Engineering, Peking University, Beijing 100871, China; Beijing Innovation Centre for Engineering Science and Advanced Technology, Peking University, Beijing 100871, China.
| | - Qing Cai
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, China..
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Zhang P, He J, Zou X, Zhong Y, Pan X, Zhang J, Pang H. Impact of magnesium ions on lysozyme-triggered disintegration and solubilization of waste activated sludge. J Environ Manage 2022; 315:115148. [PMID: 35512601 DOI: 10.1016/j.jenvman.2022.115148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 04/07/2022] [Accepted: 04/21/2022] [Indexed: 06/14/2023]
Abstract
Lysozyme can efficiently accelerate solubilization and hydrolysis of waste activated sludge (WAS) for anerobic digestion. However, the effect of lysozyme was easily to be inhibited by metal ions in WAS. The impact of magnesium ions (Mg2+) on lysozyme catalyze WAS disintegration was investigated in this study. The effect of lysozyme on WAS hydrolysis could be hindered by Mg2+. Relatively high concentrations (>50 mg/L) of Mg2+ in sludge significantly reduced the release of soluble polysaccharides and proteins from WAS, while sulfate ions or chloride ions caused no such effect. Proteins were difficult to be extracted from extracellular polymeric substances (EPS) of WAS in the presence of Mg2+ (>10 mg/L) due to the divalent cation bridging (DCB) behavior, while the extraction of polysaccharides was not significantly affected. The polysaccharides and proteins in the inner EPS layer were transferred to the outer layer during the lysozyme treatment, and total quantities of both components maintained constantly. At least 23.1% lysozymes were trapped in the liquid phase of 100 mg Mg2+/L in the first hour. Mg2+ could significantly affect the transfer of lysozyme from liquid phase to the inner layer of sludge. Mg2+ neutralized the negative surface charge of the sludge particles, which hindered the absorption of positively charged lysozyme molecules by sludge flocs from the liquid phase. The proteins of TB-EPS had higher ratios of α-helixes and tighter structures than those in LB-EPS, which could impede the lysozyme transfer to the cell wall.
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Affiliation(s)
- Pengfei Zhang
- School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, PR China.
| | - Junguo He
- School of Civil Engineering, Guangzhou University, Guangzhou, 510006, PR China
| | - Xiang Zou
- School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, PR China
| | - Yijie Zhong
- School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, PR China
| | - Xinlei Pan
- School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, PR China
| | - Jie Zhang
- School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, PR China
| | - Heliang Pang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, PR China; School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China
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9
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Nourisa J, Zeller-Plumhoff B, Helmholz H, Luthringer-Feyerabend B, Ivannikov V, Willumeit-Römer R. Magnesium ions regulate mesenchymal stem cells population and osteogenic differentiation: A fuzzy agent-based modeling approach. Comput Struct Biotechnol J 2021; 19:4110-4122. [PMID: 34527185 PMCID: PMC8346546 DOI: 10.1016/j.csbj.2021.07.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 07/05/2021] [Accepted: 07/07/2021] [Indexed: 12/17/2022] Open
Abstract
Mesenchymal stem cells (MSCs) are proliferative and multipotent cells that play a key role in the bone regeneration process. Empirical data have repeatedly shown the bioregulatory importance of magnesium (Mg) ions in MSC growth and osteogenesis. In this study, we propose an agent-based model to predict the spatiotemporal dynamics of the MSC population and osteogenic differentiation in response to Mg2+ ions. A fuzzy-logic controller was designed to govern the decision-making process of cells by predicting four cellular processes of proliferation, differentiation, migration, and mortality in response to several important bioregulatory factors such as Mg2+ ions, pH, BMP2, and TGF-β1. The model was calibrated using the empirical data obtained from three sets of cell culture experiments. The model successfully reproduced the empirical observations regarding live cell count, viability, DNA content, and the differentiation-related markers of alkaline phosphate (ALP) and osteocalcin (OC). The simulation results, in agreement with the empirical data, showed that Mg2+ ions within 3-6 mM concentration have the highest stimulation effect on cell population growth. The model also correctly reproduced the stimulatory effect of Mg2+ ions on ALP and its inhibitory effect on OC as the early and late differentiation markers, respectively. Besides, the numerical simulation shed light on the innate cellular differences of the cells cultured in different experiments in terms of the proliferative capacity as well as sensitivity to Mg2+ ions. The proposed model can be adopted in the study of the osteogenesis around Mg-based implants where ions released due to degradation interact with local cells and regulate bone regeneration.
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Affiliation(s)
- Jalil Nourisa
- Helmholtz Zentrum Hereon, Institute of Metallic Biomaterials, Max-Planck-Straße 1, 21502 Geesthacht, Germany
| | - Berit Zeller-Plumhoff
- Helmholtz Zentrum Hereon, Institute of Metallic Biomaterials, Max-Planck-Straße 1, 21502 Geesthacht, Germany
| | - Heike Helmholz
- Helmholtz Zentrum Hereon, Institute of Metallic Biomaterials, Max-Planck-Straße 1, 21502 Geesthacht, Germany
| | | | - Vladimir Ivannikov
- Helmholtz Zentrum Hereon, Institute of Metallic Biomaterials, Max-Planck-Straße 1, 21502 Geesthacht, Germany
| | - Regine Willumeit-Römer
- Helmholtz Zentrum Hereon, Institute of Metallic Biomaterials, Max-Planck-Straße 1, 21502 Geesthacht, Germany
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10
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Zhao Y, Li J, Su R, Liu Y, Wang J, Deng Y. Effect of magnesium ions on glucaric acid production in the engineered Saccharomyces cerevisiae. J Biotechnol 2021; 332:61-71. [PMID: 33812897 DOI: 10.1016/j.jbiotec.2021.03.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 03/16/2021] [Accepted: 03/25/2021] [Indexed: 11/27/2022]
Abstract
Glucaric acid has been successfully produced in Escherichia coli and fungus. Here, we first analyzed the effects of different metal ions on glucaric acid production in the engineered Saccharomyces cerevisiae Bga-3 strain harboring the glucaric acid synthesis pathway. We found that magnesium ions could promote the growth rate of yeast cells, and thus, increase the glucaric acid production by elevating the glucose and myo-inositol utilization of Bga-3 strain. RNA-Seq transcriptome analysis results showed that the upregulation of genes involved in the gluconeogenesis pathway, as well as the downregulation of genes associated with the glycolysis pathway and pentose phosphate pathway in response to MgCl2 were all benefit for the enhancement of the glucose-6-phosphate flux, which was the precursor for myo-inositol and glucaric acid. In addition, we found that MgCl2 could also increase the activity of MIOX4, which was also crucial for glucaric acid synthesis. At last, a final glucaric acid titer of 10.6 g/L, the highest reported titer, was achieved in the fed-batch fermentation using a 5-L bioreactor by adding 100 mM MgCl2. Our findings will provide a new way of promoting the production of other chemicals in the engineered yeast cells.
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Affiliation(s)
- Yunying Zhao
- National Engineering Laboratory for Cereal Fermentation Technology (NELCF), School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu, 214122, China
| | - Jie Li
- National Engineering Laboratory for Cereal Fermentation Technology (NELCF), School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu, 214122, China
| | - Ruifang Su
- National Engineering Laboratory for Cereal Fermentation Technology (NELCF), School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu, 214122, China
| | - Yingli Liu
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), Beijing Technology & Business University, Beijing, 100048, China
| | - Jing Wang
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), Beijing Technology & Business University, Beijing, 100048, China
| | - Yu Deng
- National Engineering Laboratory for Cereal Fermentation Technology (NELCF), School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu, 214122, China; Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu, 214122, China.
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11
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Qi T, Weng J, Yu F, Zhang W, Li G, Qin H, Tan Z, Zeng H. Insights into the Role of Magnesium Ions in Affecting Osteogenic Differentiation of Mesenchymal Stem Cells. Biol Trace Elem Res 2021; 199:559-567. [PMID: 32449009 DOI: 10.1007/s12011-020-02183-y] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Accepted: 04/30/2020] [Indexed: 12/13/2022]
Abstract
Bone marrow mesenchymal stem cells (MSCs) are multipotent stem cells with the ability to differentiate into bone-producing cells, which is essential for bone formation. Magnesium biomedical materials, such as biodegradable matters with osteoinductive properties, play a vital role in the osteogenic differentiation of MSCs. International and Chinese studies have shown that magnesium ions, which are produced by biodegradation, mainly achieve this effect by regulating the expression of genes and proteins associated with osteogenesis, activating multiple signal pathways, elevating autophagic activities, and adjusting the pH in the microenvironment. It is of great significance to study the regulatory mechanisms and identify the optimal conditions that how magnesium ions promote osteogenic differentiation of MSCs. In this study, we summarized the regulatory mechanisms noted above.
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Affiliation(s)
- Tiantian Qi
- National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen, 518036, People's Republic of China
- Department of Bone & Joint Surgery, Peking University Shenzhen Hospital, Shenzhen, 518036, People's Republic of China
| | - Jian Weng
- National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen, 518036, People's Republic of China
- Department of Bone & Joint Surgery, Peking University Shenzhen Hospital, Shenzhen, 518036, People's Republic of China
| | - Fei Yu
- National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen, 518036, People's Republic of China
- Department of Bone & Joint Surgery, Peking University Shenzhen Hospital, Shenzhen, 518036, People's Republic of China
| | - Weifei Zhang
- National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen, 518036, People's Republic of China
- Department of Bone & Joint Surgery, Peking University Shenzhen Hospital, Shenzhen, 518036, People's Republic of China
| | - Guoqing Li
- National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen, 518036, People's Republic of China
- Department of Bone & Joint Surgery, Peking University Shenzhen Hospital, Shenzhen, 518036, People's Republic of China
| | - Haotian Qin
- National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen, 518036, People's Republic of China
- Department of Bone & Joint Surgery, Peking University Shenzhen Hospital, Shenzhen, 518036, People's Republic of China
| | - Zhen Tan
- National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen, 518036, People's Republic of China
- Department of Bone & Joint Surgery, Peking University Shenzhen Hospital, Shenzhen, 518036, People's Republic of China
| | - Hui Zeng
- National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen, 518036, People's Republic of China.
- Department of Bone & Joint Surgery, Peking University Shenzhen Hospital, Shenzhen, 518036, People's Republic of China.
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Lin Z, Shen D, Zhou W, Zheng Y, Kong T, Liu X, Wu S, Chu PK, Zhao Y, Wu J, Cheung KM, Yeung KW. Regulation of extracellular bioactive cations in bone tissue microenvironment induces favorable osteoimmune conditions to accelerate in situ bone regeneration. Bioact Mater 2021; 6:2315-2330. [PMID: 33553818 PMCID: PMC7840811 DOI: 10.1016/j.bioactmat.2021.01.018] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 01/14/2021] [Accepted: 01/16/2021] [Indexed: 12/25/2022] Open
Abstract
The design of orthopedic biomaterials has gradually shifted from “immune-friendly” to “immunomodulatory,” in which the biomaterials are able to modulate the inflammatory response via macrophage polarization in a local immune microenvironment that favors osteogenesis and implant-to-bone osseointegration. Despite the well-known effects of bioactive metallic ions on osteogenesis, how extracellular metallic ions manipulate immune cells in bone tissue microenvironments toward osteogenesis and subsequent bone formation has rarely been studied. Herein, we investigate the osteoimmunomodulatory effect of an extracellular bioactive cation (Mg2+) in the bone tissue microenvironment using custom-made poly lactic-co-glycolic acid (PLGA)/MgO-alendronate microspheres that endow controllable release of magnesium ions. The results suggest that the Mg2+-controlled tissue microenvironment can effectively induce macrophage polarization from the M0 to M2 phenotype via the enhancement of anti-inflammatory (IL-10) and pro-osteogenic (BMP-2 and TGF-β1) cytokines production. It also generates a favorable osteoimmune microenvironment that facilitates the proliferation and osteogenic differentiation of bone marrow mesenchymal stem cells. The in vivo results further verify that a large amount of bony tissue, with comparable bone mineral density and mechanical properties, has been generated at an early post-surgical stage in rat intramedullary bone defect models. This study demonstrates that the concept of in situ immunomodulated osteogenesis can be realized in a controlled magnesium tissue microenvironment. Controlled release of Mg2+ was achieved by the microfluidic electrosprayed PLGA/MgO-alendronate microspheres. PLGA/MgO-alendronate microspheres with satisfied osteoimmunomodulatory properties accelerated bone regeneration in vivo. Extracellular Mg2+ induced macrophage switch to M2 phenotype with enhanced expressions of IL-10, BMP-2 and TGF-β1. Osteoimmune microenvironment favourably upregulated the osteogenic expressions of BMSCs.
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Affiliation(s)
- Zhengjie Lin
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China
- Department of Orthopaedics and Traumatology, The University of Hong Kong, Hong Kong, China
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
- Corresponding author. College of Chemistry and Environmental Engineering, Shenzhen University, China.
| | - Danni Shen
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, 100871, China
- Shenzhen Key Laboratory for Innovative Technology in Orthopaedic Trauma, The University of Hong Kong Shenzhen Hospital, 1 Haiyuan 1st Road, Futian District, Shenzhen, China
| | - Weixiao Zhou
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, Department of Biomedical Engineering, School of Medicine, Shenzhen University, Shenzhen, 518060, China
| | - Yufeng Zheng
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, 100871, China
| | - Tiantian Kong
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, Department of Biomedical Engineering, School of Medicine, Shenzhen University, Shenzhen, 518060, China
| | - Xuanyong Liu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China
| | - Shuilin Wu
- School of Materials Science & Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Tianjin, 300072, China
| | - Paul K. Chu
- Department of Physics, Department of Materials Science and Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Ying Zhao
- Centre for Human Tissues and Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Jun Wu
- Shenzhen Key Laboratory for Innovative Technology in Orthopaedic Trauma, The University of Hong Kong Shenzhen Hospital, 1 Haiyuan 1st Road, Futian District, Shenzhen, China
| | - Kenneth M.C. Cheung
- Department of Orthopaedics and Traumatology, The University of Hong Kong, Hong Kong, China
| | - Kelvin W.K. Yeung
- Department of Orthopaedics and Traumatology, The University of Hong Kong, Hong Kong, China
- Shenzhen Key Laboratory for Innovative Technology in Orthopaedic Trauma, The University of Hong Kong Shenzhen Hospital, 1 Haiyuan 1st Road, Futian District, Shenzhen, China
- Corresponding author. Department of Orthopaedics and Traumatology, The University of Hong Kong, Hong Kong, China.
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Ando I, Karasawa K, Shioya T, Matsuda H, Tanaka A. Evaluation of stress status using the stress map for guide dog candidates in the training stage using variations in the serum cortisol with nerve growth factor and magnesium ions. Vet Anim Sci 2020; 10:100129. [PMID: 32734029 PMCID: PMC7386704 DOI: 10.1016/j.vas.2020.100129] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 06/23/2020] [Accepted: 06/23/2020] [Indexed: 11/19/2022] Open
Abstract
Most studies on guide dogs for the blind were conducted to investigate the appropriateness of the animals, including in terms of their breeding, constitution, and temperament. However, research to comprehend the stress status of guide dog candidates in response to their training has been unclear. In this study, the levels of serum cortisol, nerve growth factor (NGF), and magnesium ion (Mg2+) levels of guide dog candidates during the three training stages-the elementary, intermediate, and advanced classes-were examined. Dogs were classified based on the contents of the classes and period during the training in which they were subjected. Since the dogs in the elementary class had the lowest serum NGF and Mg2+ levels, they were understood to be under mental stress and to be unfamiliar with their new surroundings. In contrast, the serum NGF and Mg2+ levels were high in the dogs in the advanced class, though they were demonstrated to be mentally stable and acclimated to their environment. Additionally, they were almost free from the stress caused by daily life, since they had the lowest serum cortisol levels. The status of each dog was plotted on a map consisting of 2 axes representing the serum NGF and Mg2+ levels with high or low cortisol levels. Plots could be divided into three domains corresponding to the elementary, intermediate, and advanced classes. Therefore, for working dogs, serum NGF and Mg2+ levels in addition to serum cortisol levels may be important factors to comprehend the type of stress situation that each dog was in.
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Affiliation(s)
- Izumi Ando
- Cooperative Major in Advanced Health Science, Graduate School of Bio-Applications and System Engineering, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan
| | - Kaoru Karasawa
- Laboratory of Comparative Animal Medicine, Division of Animal Life Science, Institute of Agriculture, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan
| | | | - Hiroshi Matsuda
- Laboratory of Comparative Animal Medicine, Division of Animal Life Science, Institute of Agriculture, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan
| | - Akane Tanaka
- Cooperative Major in Advanced Health Science, Graduate School of Bio-Applications and System Engineering, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan
- Laboratory of Comparative Animal Medicine, Division of Animal Life Science, Institute of Agriculture, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan
- Corresponding author.
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Zhang Y, Li H, Huang S, Fan S, Sun L, Tian B, Chen F, Wang Y, Shi Y, Yang HY. Rechargeable Aqueous Zinc-Ion Batteries in MgSO 4/ZnSO 4 Hybrid Electrolytes. Nanomicro Lett 2020; 12:60. [PMID: 34138271 PMCID: PMC7770650 DOI: 10.1007/s40820-020-0385-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 01/06/2020] [Indexed: 05/13/2023]
Abstract
MgSO4 is chosen as an additive to address the capacity fading issue in the rechargeable zinc-ion battery system of MgxV2O5·nH2O//ZnSO4//zinc. Electrolytes with different concentration ratios of ZnSO4 and MgSO4 are investigated. The batteries measured in the 1 M ZnSO4-1 M MgSO4 electrolyte outplay other competitors, which deliver a high specific capacity of 374 mAh g-1 at a current density of 100 mA g-1 and exhibit a competitive rate performance with the reversible capacity of 175 mAh g-1 at 5 A g-1. This study provides a promising route to improve the performance of vanadium-based cathodes for aqueous zinc-ion batteries with electrolyte optimization in cost-effective electrolytes.
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Affiliation(s)
- Yingmeng Zhang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, Guangdong, People's Republic of China
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, People's Republic of China
- Engineering Technology Research Center for 2D Material Information Function Devices and Systems of Guangdong Province, Shenzhen, People's Republic of China
| | - Henan Li
- Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, People's Republic of China.
| | - Shaozhuan Huang
- Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, Singapore, 487372, Singapore
| | - Shuang Fan
- Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, Singapore, 487372, Singapore
| | - Lingna Sun
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, Guangdong, People's Republic of China
| | - Bingbing Tian
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Fuming Chen
- School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou, 510006, People's Republic of China
| | - Ye Wang
- Key Laboratory of Material Physics of Ministry of Education, School of Physics and Engineering, Zhengzhou University, Zhengzhou, 450052, People's Republic of China
| | - Yumeng Shi
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, People's Republic of China.
- Engineering Technology Research Center for 2D Material Information Function Devices and Systems of Guangdong Province, Shenzhen, People's Republic of China.
| | - Hui Ying Yang
- Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, Singapore, 487372, Singapore.
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Gu Y, Zhang J, Zhang X, Liang G, Xu T, Niu W. Three-dimensional Printed Mg-Doped β-TCP Bone Tissue Engineering Scaffolds: Effects of Magnesium Ion Concentration on Osteogenesis and Angiogenesis In Vitro. Tissue Eng Regen Med 2019; 16:415-29. [PMID: 31413945 DOI: 10.1007/s13770-019-00192-0] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 04/07/2019] [Accepted: 04/17/2019] [Indexed: 12/14/2022] Open
Abstract
Background Three-dimensional (3D) printed bone tissue engineering scaffolds have been widely used in research and clinical applications. β-TCP is a biomaterial commonly used in bone tissue engineering to treat bone defects, and its multifunctionality can be achieved by co-doping different metal ions. Magnesium doping in biomaterials has been shown to alter physicochemical properties of cells and enhance osteogenesis. Methods A series of Mg-doped TCP scaffolds were manufactured by using cryogenic 3D printing technology and sintering. The characteristics of the porous scaffolds, such as microstructure, chemical composition, mechanical properties, apparent porosity, etc., were examined. To further study the role of magnesium ions in simultaneously inducing osteogenesis and angiogenesis, human bone marrow mesenchymal stem cells (hBMSCs) and human umblical vein endothelial cells (HUVECs) were cultured in scaffold extracts to investigate cell proliferation, viability, and expression of osteogenic and angiogenic genes. Results The results showed that Mg-doped TCP scaffolds have the advantages of precise design, interconnected porous structure, and similar compressive strength to natural cancellous bone. hBMSCs and HUVECs exhibit high proliferation rate, cell morphology and viability in a certain amount of Mg2+. In addition, this concentration of magnesium can also increase the expression levels of osteogenic and angiogenic biomarkers. Conclusion A certain concentration of magnesium ions plays an important role in new bone regeneration and reconstruction. It can be used as a simple and effective method to enhance the osteogenesis and angiogenesis of bioceramic scaffolds, and support the development of biomaterials and bone tissue engineering scaffolds.
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Yuan Z, Wei P, Huang Y, Zhang W, Chen F, Zhang X, Mao J, Chen D, Cai Q, Yang X. Injectable PLGA microspheres with tunable magnesium ion release for promoting bone regeneration. Acta Biomater 2019; 85:294-309. [PMID: 30553873 DOI: 10.1016/j.actbio.2018.12.017] [Citation(s) in RCA: 94] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 12/07/2018] [Accepted: 12/12/2018] [Indexed: 12/13/2022]
Abstract
Magnesium ions (Mg2+) are bioactive and proven to promote bone tissue regeneration, in which the enhancement efficiency is closely related to Mg2+ concentrations. Currently, there are no well-established bone tissue engineering scaffolds that can precisely control Mg2+ release, although this capability could have a marked impact in bone regeneration. Leveraging the power of biodegradable microspheres to control the release of bioactive factors, we developed lactone-based biodegradable microspheres that served as both injectable scaffolds and Mg2+ release system for bone regeneration. The biodegradable microsphere (PMg) was prepared from poly(lactide-co-glycolide) (PLGA) microspheres co-embedded with MgO and MgCO3 at a fixed total loading amount (20 wt%) with different weight ratios (1:0; 3:1; 1:1; 1:3; 0:1). The PMg microspheres demonstrated controlled release of Mg2+ by tuning the MgO/MgCO3 ratios. Specifically, faster release with higher initial concentrations of Mg2+ were detected at higher MgO fractions, while long-term sustained release with lower concentrations of Mg2+ was obtained at higher MgCO3 fractions. All prepared PMg microspheres were non-cytotoxic. Furthermore, they promoted attachment, proliferation, osteogenic differentiation, especially, cell migration of bone marrow mesenchymal stromal cells (BMSCs). Among these microspheres, PMg-III microspheres (MgO/MgCO3 in 1:1) exhibited the strongest promotion of mineral depositions and osteogenic differentiation of BMSCs. PMg-III microspheres were injected into the critical-sized calvarial defect of a rat model, resulting in significant bone regeneration when compared to the control group filled with PLGA microspheres. In the PMg-III group, the new bone volume fraction (BV/TV) and bone mineral density (BMD) reached 32.9 ± 5.6% and 325.7 ± 20.2 mg/cm3, respectively, which were much higher than the values 8.1 ± 2.5% (BV/TV) and 124 ± 35.8 mg/cm3 (BMD) in the PLGA group. These findings indicated that bioresorbable microspheres possessing controlled Mg2+ release features were efficient in treating bone defects and promising for future in vivo applications. STATEMENT OF SIGNIFICANCE: Magnesium plays pivotal roles in regulating osteogenesis, which exhibits concentration-dependent behaviors. However, no generally accepted controlled-release system is reported to correlate Mg2+ concentration with efficient bone regeneration. Biodegradable microspheres with injectability are excellent cell carriers for tissue engineering, moreover, good delivery systems for bioactive factors. By co-embedding magnesium compounds (MgO, MgCO3) with different dissolution rates in various ratios, tunable release of Mg2+ from the microspheres was readily achieved. Accordingly, significant promotion in bone defect regeneration is achieved with microspheres displaying proper sustained release of Mg2+. The developed strategy may serve as valuable guidelines for bone tissue engineering scaffold design, which allows precise control on the release of bioactive metal ions like Mg2+ toward potential clinical translation.
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Affiliation(s)
- Zuoying Yuan
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Pengfei Wei
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Yiqian Huang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Wenxin Zhang
- Department of Endodontics, School and Hospital of Stomatology, Tianjin Medical University, Tianjin 300070, PR China
| | - Fuyu Chen
- Department of Endodontics, School and Hospital of Stomatology, Tianjin Medical University, Tianjin 300070, PR China
| | - Xu Zhang
- Department of Endodontics, School and Hospital of Stomatology, Tianjin Medical University, Tianjin 300070, PR China
| | - Jianping Mao
- Department of Spine Surgery, Beijing Jishuitan Hospital, Beijing 100035, PR China
| | - Dafu Chen
- Laboratory of Bone Tissue Engineering, Beijing Research Institute of Traumatology and Orthopaedics, Beijing Jishuitan Hospital, Beijing 100035, PR China
| | - Qing Cai
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, PR China.
| | - Xiaoping Yang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, PR China.
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Abstract
Traditionally, only the 3',5'-cyclic monophosphates of adenosine and guanosine (produced by adenylyl cyclase and guanylyl cyclase, respectively) are regarded as true "second messengers" in the vascular wall, despite the presence of other cyclic nucleotides in different tissues. Among these noncanonical cyclic nucleotides, inosine 3',5'-cyclic monophosphate (cIMP) is synthesized by soluble guanylyl cyclase in porcine coronary arteries in response to hypoxia, when the enzyme is activated by endothelium-derived nitric oxide. Its production is associated with augmentation of vascular contraction mediated by stimulation of Rho kinase. Based on these findings, cIMP appears to meet most, if not all, of the criteria required for it to be accepted as a "second messenger," at least in the vascular wall.
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Abdallah MN, Eimar H, Bassett DC, Schnabel M, Ciobanu O, Nelea V, McKee MD, Cerruti M, Tamimi F. Diagenesis-inspired reaction of magnesium ions with surface enamel mineral modifies properties of human teeth. Acta Biomater 2016; 37:174-83. [PMID: 27060619 DOI: 10.1016/j.actbio.2016.04.005] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 03/09/2016] [Accepted: 04/06/2016] [Indexed: 11/18/2022]
Abstract
UNLABELLED Mineralized tissues such as teeth and bones consist primarily of highly organized apatitic calcium-phosphate crystallites within a complex organic matrix. The dimensions and organization of these apatite crystallites at the nanoscale level determine in part the physical properties of mineralized tissues. After death, geological processes such as diagenesis and dolomitization can alter the crystallographic properties of mineralized tissues through cycles of dissolution and re-precipitation occurring in highly saline environments. Inspired by these natural exchange phenomena, we investigated the effect of hypersalinity on tooth enamel. We discovered that magnesium ions reacted with human tooth enamel through a process of dissolution and re-precipitation, reducing enamel crystal size at the surface of the tooth. This change in crystallographic structure made the teeth harder and whiter. Salt-water rinses have been used for centuries to ameliorate oral infections; however, our discovery suggests that this ancient practice could have additional unexpected benefits. STATEMENT OF SIGNIFICANCE Here we describe an approach inspired by natural geological processes to modify the properties of a biomineral - human tooth enamel. In this study we showed that treatment of human tooth enamel with solutions saturated with magnesium induced changes in the nanocrystals at the outer surface of the protective enamel layer. As a consequence, the physical properties of the tooth were modified; tooth microhardness increased and the color shade became whiter, thus suggesting that this method could be used as a clinical treatment to improve dental mechanical properties and esthetics. Such an approach is simple and straightforward, and could also be used to develop new strategies to synthesize and modify biominerals for biomedical and industrial applications.
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Affiliation(s)
| | - Hazem Eimar
- Faculty of Dentistry, McGill University, H3A 0C7 Montreal, QC, Canada
| | - David C Bassett
- Faculty of Dentistry, McGill University, H3A 0C7 Montreal, QC, Canada
| | - Martin Schnabel
- Faculty of Dentistry, McGill University, H3A 0C7 Montreal, QC, Canada
| | - Ovidiu Ciobanu
- Faculty of Dentistry, McGill University, H3A 0C7 Montreal, QC, Canada
| | - Valentin Nelea
- Faculty of Dentistry, McGill University, H3A 0C7 Montreal, QC, Canada
| | - Marc D McKee
- Faculty of Dentistry, McGill University, H3A 0C7 Montreal, QC, Canada; Department of Anatomy and Cell Biology, Faculty of Medicine, McGill University, H3A 0C7 Montreal, QC, Canada
| | - Marta Cerruti
- Department of Mining and Materials Engineering, McGill University, H3A 0E8 Montreal, QC, Canada
| | - Faleh Tamimi
- Faculty of Dentistry, McGill University, H3A 0C7 Montreal, QC, Canada.
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Hyrc KL, Minta A, Escamilla PR, Chan PPL, Meshik XA, Goldberg MP. Synthesis and properties of Asante Calcium Red--a novel family of long excitation wavelength calcium indicators. Cell Calcium 2013; 54:320-33. [PMID: 24017967 DOI: 10.1016/j.ceca.2013.08.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Revised: 07/29/2013] [Accepted: 08/01/2013] [Indexed: 10/26/2022]
Abstract
Although many synthetic calcium indicators are available, a search for compounds with improved characteristics continues. Here, we describe the synthesis and properties of Asante Calcium Red-1 (ACR-1) and its low affinity derivative (ACR-1-LA) created by linking BAPTA to seminaphthofluorescein. The indicators combine a visible light (450-540 nm) excitation with deep-red fluorescence (640 nm). Upon Ca2+ binding, the indicators raise their fluorescence with longer excitation wavelengths producing higher responses. Although the changes occur without any spectral shifts, it is possible to ratio Ca(2+)-dependent (640 nm) and quasi-independent (530 nm) emission when using visible (< 490 nm) or multiphoton (∼780 nm) excitation. Therefore, both probes can be used as single wavelength or, less dynamic, ratiometric indicators. Long indicator emission might allow easy [Ca2+]i measurement in GFP expressing cells. The indicators bind Ca2+ with either high (Kd = 0.49 ± 0.07 μM; ACR-1) or low affinity (Kd = 6.65 ± 0.13 μM; ACR-1-LA). Chelating Zn2+ (Kd = 0.38 ± 0.02 nM) or Mg2+ (Kd∼5mM) slightly raises and binding Co2+ quenches dye fluorescence. New indicators are somewhat pH-sensitive (pKa = 6.31 ± 0.07), but fairly resistant to bleaching. The probes are rather dim, which combined with low AM ester loading efficiency, might complicate in situ imaging. Despite potential drawbacks, ACR-1 and ACR-1-LA are promising new calcium indicators.
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Affiliation(s)
- Krzysztof L Hyrc
- The Hope Center for Neurological Disorders, Washington University School of Medicine, St. Louis, MO 63110, USA; Center for the Investigation of Membrane Excitability Diseases, Washington University School of Medicine, St. Louis, MO 63110, USA; Alafi Neuroimaging Laboratory, Washington University School of Medicine, St. Louis, MO 63110, USA.
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Falini G, Reggi M, Fermani S, Sparla F, Goffredo S, Dubinsky Z, Levi O, Dauphin Y, Cuif JP. Control of aragonite deposition in colonial corals by intra-skeletal macromolecules. J Struct Biol 2013; 183:226-38. [PMID: 23669627 DOI: 10.1016/j.jsb.2013.05.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2013] [Revised: 05/01/2013] [Accepted: 05/05/2013] [Indexed: 10/26/2022]
Abstract
Scleractinian coral skeletons are composed mainly of aragonite in which a small percentage of organic matrix (OM) molecules is entrapped. It is well known that in corals the mineral deposition occurs in a biological confined nucleation site, but it is still unclear to what extent the calcification is controlled by OM molecules. Hence, the shape, size and organization of skeletal crystals from the fiber level through the colony architecture, were also attributed to factors as diverse as nucleation site mineral supersaturation and environmental factors in the habitat. In this work the OMs were extracted from the skeleton of three colonial corals, Acropora digitifera, Lophelia pertusa and Montipora caliculata. A. digitifera has a higher calcification rate than the other two species. OM molecules were characterized and their CaCO3 mineralization activity was evaluated by experiments of overgrowth on coral skeletons and of precipitation from solutions containing OM soluble and insoluble fractions and magnesium ions. The precipitates were characterized by spectroscopic and microscopic techniques. The results showed that the OM molecules of the three coral share similar features, but differ from those associated with mollusk shells. However, A. digitifera OM shows peculiarities from those from L. pertusa and M. caliculata. The CaCO3 overgrowth and precipitation experiments confirm the singularity of A. digitifera OM molecules as mineralizers. Moreover, their comparison indicates that only specific molecules are involved in the polymorphism control and suggests that when the whole extracted materials are used the OM's main effect is on the control of particles' shape and morphology.
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Affiliation(s)
- Giuseppe Falini
- Dipartimento di Chimica 'G. Ciamician', via Selmi 2, Alma Mater Studiorum, Università di Bologna, 340126 Bologna, Italy.
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