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Hao Y, Yang N, Sun M, Yang S, Chen X. The role of calcium channels in osteoporosis and their therapeutic potential. Front Endocrinol (Lausanne) 2024; 15:1450328. [PMID: 39170742 PMCID: PMC11335502 DOI: 10.3389/fendo.2024.1450328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2024] [Accepted: 07/25/2024] [Indexed: 08/23/2024] Open
Abstract
Osteoporosis, a systemic skeletal disorder marked by diminished bone mass and compromised bone microarchitecture, is becoming increasingly prevalent due to an aging population. The underlying pathophysiology of osteoporosis is attributed to an imbalance between osteoclast-mediated bone resorption and osteoblast-mediated bone formation. Osteoclasts play a crucial role in the development of osteoporosis through various molecular pathways, including the RANK/RANKL/OPG signaling axis, cytokines, and integrins. Notably, the calcium signaling pathway is pivotal in regulating osteoclast activation and function, influencing bone resorption activity. Disruption in calcium signaling can lead to increased osteoclast-mediated bone resorption, contributing to the progression of osteoporosis. Emerging research indicates that calcium-permeable channels on the cellular membrane play a critical role in bone metabolism by modulating these intracellular calcium pathways. Here, we provide an overview of current literature on the regulation of plasma membrane calcium channels in relation to bone metabolism with particular emphasis on their dysregulation during the progression of osteoporosis. Targeting these calcium channels may represent a potential therapeutic strategy for treating osteoporosis.
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Affiliation(s)
- Ying Hao
- College of Sports, Northwest Normal University, Lanzhou, China
| | - Ningning Yang
- College of Sports, Northwest Normal University, Lanzhou, China
| | - Mengying Sun
- College of Sports, Northwest Normal University, Lanzhou, China
| | - Shangze Yang
- Institute of Medical Research, Northwestern Polytechnical University, Xi’an, China
| | - Xingjuan Chen
- Institute of Medical Research, Northwestern Polytechnical University, Xi’an, China
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2
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Kim JY, Kumar SB, Park CH, Kim CS. Development of cell-laden photopolymerized constructs with bioactive amorphous calcium magnesium phosphate for bone tissue regeneration via 3D bioprinting. Int J Biol Macromol 2024; 267:131412. [PMID: 38593894 DOI: 10.1016/j.ijbiomac.2024.131412] [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: 11/30/2023] [Revised: 03/05/2024] [Accepted: 03/15/2024] [Indexed: 04/11/2024]
Abstract
The synthesis of ideal bioceramics to guide the fate of cells and subsequent bone regeneration within the chemical, biological, and physical microenvironment is a challenging long-term task. This study developed amorphous calcium magnesium phosphate (ACMP) bioceramics via a simple co-precipitation method. The role of Mg2+ in the formation of ACMP is investigated using physicochemical and biological characterization at different Ca/Mg molar ratio of the initial reaction solution. Additionally, ACMP bioceramics show superior cytocompatibility and improved osteogenic differentiation of co-cultured MC3T3-E1 cells. Regulation of the microenvironment with Mg2+ can promote early-stage bone regeneration. For this, bioprinting technology is employed to prepare ACMP-modified 3D porous structures. Our hypothesis is that the incorporation of ACMP into methacrylated gelatin (GelMA) bioink can trigger the osteogenic differentiation of encapsulated preosteoblast and stimulate bone regeneration. The cell-laden ACMP composite structures display stable printability and superior cell viability and cell proliferation. Also, constructs loading the appropriate amount of ACMP bioceramic showed significant osteogenic differentiation activity compared to the pure GelMA. We demonstrate that the dissolved Mg2+ cation microenvironment in ACMP-modified composite constructs plays an effective biochemical role, and can regulate cell fate. Our results predict that GelMA/ACMP bioink has significant potential in patient-specific bone tissue regeneration.
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Affiliation(s)
- Ju Yeon Kim
- Department of Bionanosystem Engineering, Graduate School, Jeonbuk National University, Jeonju 561-756, Republic of Korea; Department of Bionanotechnology and Bioconvergence Engineering, Graduate School, Jeonbuk National University, Jeonju 561-756, Republic of Korea
| | - Shrestha Bishnu Kumar
- Department of Chemical, Biological, and Bioengineering, North Carolina A&T State University, Greensboro, NC 27411, USA
| | - Chan Hee Park
- Department of Bionanosystem Engineering, Graduate School, Jeonbuk National University, Jeonju 561-756, Republic of Korea; Department of Bionanotechnology and Bioconvergence Engineering, Graduate School, Jeonbuk National University, Jeonju 561-756, Republic of Korea; Department of Mechanical Design Engineering, Jeonbuk National University, Jeonju 561-756, Republic of Korea.
| | - Cheol Sang Kim
- Department of Bionanosystem Engineering, Graduate School, Jeonbuk National University, Jeonju 561-756, Republic of Korea; Department of Bionanotechnology and Bioconvergence Engineering, Graduate School, Jeonbuk National University, Jeonju 561-756, Republic of Korea; Department of Mechanical Design Engineering, Jeonbuk National University, Jeonju 561-756, Republic of Korea.
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Pahlevanzadeh F, Emadi R, Kharaziha M, Poursamar SA, Nejatidanesh F, Emadi H, Aslani R, Moroni L, Setayeshmehr M. Amorphous magnesium phosphate-graphene oxide nano particles laden 3D-printed chitosan scaffolds with enhanced osteogenic potential and antibacterial properties. BIOMATERIALS ADVANCES 2024; 158:213760. [PMID: 38242056 DOI: 10.1016/j.bioadv.2024.213760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Revised: 12/23/2023] [Accepted: 01/03/2024] [Indexed: 01/21/2024]
Abstract
The utilization of 3D printing technology for the fabrication of graft substitutes in bone repair holds immense promise. However, meeting the requirements for printability, bioactivity, mechanical strength, and biological properties of 3D printed structures concurrently poses a significant challenge. In this study, we introduce a novel approach by incorporating amorphous magnesium phosphate-graphene oxide (AMP-GO) into a thermo-crosslinkable chitosan/β glycerol phosphate (CS/GP) ink. We fabricated thermo-crosslinkable CS inks containing varying concentrations (10 %, 20 %, or 30 % weight) of AMP-GO. The 3D printed scaffolds incorporating 20 % AMP-GO exhibited significantly improved mechanical properties, with compressive strengths of 4.5 ± 0.06 MPa compared to 0.5 ± 0.03 MPa for CS printed scaffolds. Moreover, the CS/AMP-GO inks demonstrated enhanced antibacterial activity against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) bacteria, attributed to the release of magnesium cations and the performance of GO. Additionally, CS/20AMP-GO ink facilitated increased adhesion, viability, proliferation, and osteogenic differentiation of mesenchymal stem cells (MSCs), as evidenced by the upregulation of ALP, COL1, and Runx2 expression, which were elevated 9.8, 6.5, and >22 times, respectively, compared to pure CS scaffolds. Considering its exceptional in vivo osteogenic potential, we anticipate that the CS/20AMP-GO ink holds great potential for 3D printing of bone grafts.
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Affiliation(s)
- F Pahlevanzadeh
- Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - R Emadi
- Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - M Kharaziha
- Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - S A Poursamar
- Department of Biomaterials, Nanotechnology and Tissue Engineering, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan 81746-73461, Iran
| | - F Nejatidanesh
- Dental Materials Research Center, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran
| | - H Emadi
- Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - R Aslani
- Department of Biomaterials, Nanotechnology and Tissue Engineering, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan 81746-73461, Iran
| | - L Moroni
- Complex Tissue Regeneration Department, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, the Netherlands.
| | - M Setayeshmehr
- Department of Anatomical Sciences, School of Medicine, Isfahan University of Medical Sciences, Isfahan 81746-73461, Iran.
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Tao Z, Tao M, Zhou M, Wu XJ. Niacin treatment prevents bone loss in iron overload osteoporotic rats via activation of SIRT1 signaling pathway. Chem Biol Interact 2024; 388:110827. [PMID: 38081572 DOI: 10.1016/j.cbi.2023.110827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 10/31/2023] [Accepted: 11/30/2023] [Indexed: 12/23/2023]
Abstract
Recently, more and more studies have revealed that iron overload can lead to osteoporosis by inducing oxidative stress. Niacin (NAN), also known as nicotinate or vitamin B3, has been confirmed to possess potent antioxidative effects. In addition, very little is currently known about the protective effects of NAN on iron overload in osteoporotic bone tissue. Therefore, we aimed to evaluate the protective effect of niacin on iron overload-induced bone injury and to investigate the effect and underlying mechanisms of the niacin and iron overload on intracellular antioxidant properties. When MC3T3-E1 and RAW264.7 cells were cultured in the presence of ammonium ferric citrate(FAC), NAN therapy could increase the matrix mineralization and promote expression of osteogenic markers in MC3T3-E1, inhibit osteoclastic differentiation of RAW264.7 cells, while increasing intracellular reactive oxygen species (ROS) levels and strengthening mitochondrial membrane potential (MMP). In the ovariectomized (OVX) rat model, NAN had an obvious protective effect against iron-overloaded injury. Meanwhile, superoxide dismutase 2 (SOD2), intracellular antioxidant enzymes and silent information regulator type 1 (SIRT1), were up-regulated in response to NAN exposures in MC3T3-E1. Furthermore, SIRT1 inhibitor EX527 attenuated the protective effects of NAN. Results revealed that NAN could stimulate osteogenic differentiation, inhibit osteoclastic differentiation and markedly increased antioxidant properties in cells through the induction of SIRT1. Studies suggest that niacin is a promising agent for preventing bone loss in iron overload conditions.
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Affiliation(s)
- Zhoushan Tao
- Department of Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe Shan Xi Road, Wuhu, 241001, Anhui, PR China; Anhui Province Key Laboratory of Non-coding RNA Basic and Clinical Transformation, No. 2, Zhe Shan Xi Road, Wuhu, 241001, Anhui, PR China.
| | - Ma Tao
- Department of Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe Shan Xi Road, Wuhu, 241001, Anhui, PR China
| | - Maosheng Zhou
- Department of Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe Shan Xi Road, Wuhu, 241001, Anhui, PR China
| | - Xing-Jing Wu
- Department of Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe Shan Xi Road, Wuhu, 241001, Anhui, PR China
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Wang X, Qian Y, Wang S, Wang M, Sun K, Cheng Z, Shao Y, Zhang S, Tang C, Chu C, Xue F, Tao L, Lu M, Bai J. Accumulative Rolling Mg/PLLA Composite Membrane with Lamellar Heterostructure for Enhanced Bacteria Inhibition and Rapid Bone Regeneration. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2301638. [PMID: 37345962 DOI: 10.1002/smll.202301638] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 05/19/2023] [Indexed: 06/23/2023]
Abstract
Developing composite materials with optimized mechanics, degradation, and bioactivity for bone regeneration has long been a crucial mission. Herein, a multifunctional Mg/Poly-l-lactic acid (Mg/PLLA) composite membrane based on the "materials plain" concept through the accumulative rolling (AR) method is proposed. Results show that at a rolling ratio of 75%, the comprehensive mechanical properties of the membrane in the rolling direction are self-reinforced significantly (elongation at break ≈53.2%, tensile strength ≈104.0 MPa, Young's modulus ≈2.13 GPa). This enhancement is attributed to the directional arrangement and increased crystallization of PLLA molecular chains, as demonstrated by SAXS and DSC results. Furthermore, the AR composite membrane presents a lamellar heterostructure, which not only avoids the accumulation of Mg microparticles (MgMPs) but also regulates the degradation rate. Through the contribution of bioactive MgMPs and their photothermal effect synergistically, the membrane effectively eliminates bacterial infection and accelerates vascularized bone regeneration both in vitro and in vivo. Notably, the membrane exhibits outstanding rat skull bone regeneration performance in only 4 weeks, surpassing most literature reports. In short, this work develops a composite membrane with a "one stone, four birds" effect, opening an efficient avenue toward high-performance orthopedic materials.
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Affiliation(s)
- Xianli Wang
- School of Materials Science and Engineering, Southeast University, Jiangning, Nanjing, Jiangsu, 211189, China
- Jiangsu Key Laboratory for Advanced Metallic Materials, Jiangning, Nanjing, Jiangsu, 211189, China
- Institute of Medical Devices (Suzhou), Southeast University, Suzhou, 215000, China
| | - Yuxin Qian
- Department of Oral Implantology, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, 210029, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing, 210029, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, 210029, China
| | - Shuang Wang
- Department of Oral Implantology, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, 210029, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing, 210029, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, 210029, China
| | - Mingxi Wang
- Department of Oral Implantology, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, 210029, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing, 210029, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, 210029, China
| | - Ke Sun
- School of Materials Science and Engineering, Southeast University, Jiangning, Nanjing, Jiangsu, 211189, China
- Jiangsu Key Laboratory for Advanced Metallic Materials, Jiangning, Nanjing, Jiangsu, 211189, China
- Institute of Medical Devices (Suzhou), Southeast University, Suzhou, 215000, China
| | - Zhaojun Cheng
- School of Materials Science and Engineering, Southeast University, Jiangning, Nanjing, Jiangsu, 211189, China
- Jiangsu Key Laboratory for Advanced Metallic Materials, Jiangning, Nanjing, Jiangsu, 211189, China
- Institute of Medical Devices (Suzhou), Southeast University, Suzhou, 215000, China
| | - Yi Shao
- School of Materials Science and Engineering, Southeast University, Jiangning, Nanjing, Jiangsu, 211189, China
- Jiangsu Key Laboratory for Advanced Metallic Materials, Jiangning, Nanjing, Jiangsu, 211189, China
- Institute of Medical Devices (Suzhou), Southeast University, Suzhou, 215000, China
| | - Shixuan Zhang
- Department of Oral Implantology, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, 210029, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing, 210029, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, 210029, China
| | - Chunbo Tang
- Department of Oral Implantology, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, 210029, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing, 210029, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, 210029, China
| | - Chenglin Chu
- School of Materials Science and Engineering, Southeast University, Jiangning, Nanjing, Jiangsu, 211189, China
- Jiangsu Key Laboratory for Advanced Metallic Materials, Jiangning, Nanjing, Jiangsu, 211189, China
- Institute of Medical Devices (Suzhou), Southeast University, Suzhou, 215000, China
| | - Feng Xue
- School of Materials Science and Engineering, Southeast University, Jiangning, Nanjing, Jiangsu, 211189, China
- Jiangsu Key Laboratory for Advanced Metallic Materials, Jiangning, Nanjing, Jiangsu, 211189, China
- Institute of Medical Devices (Suzhou), Southeast University, Suzhou, 215000, China
| | - Li Tao
- School of Materials Science and Engineering, Southeast University, Jiangning, Nanjing, Jiangsu, 211189, China
- Jiangsu Key Laboratory for Advanced Metallic Materials, Jiangning, Nanjing, Jiangsu, 211189, China
- Institute of Medical Devices (Suzhou), Southeast University, Suzhou, 215000, China
| | - Mengmeng Lu
- Department of Oral Implantology, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, 210029, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing, 210029, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, 210029, China
| | - Jing Bai
- School of Materials Science and Engineering, Southeast University, Jiangning, Nanjing, Jiangsu, 211189, China
- Jiangsu Key Laboratory for Advanced Metallic Materials, Jiangning, Nanjing, Jiangsu, 211189, China
- Institute of Medical Devices (Suzhou), Southeast University, Suzhou, 215000, China
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Kim A, Kim AR, Jeon YE, Yoo YJ, Yang YM, Bak EJ. TRPC expression in human periodontal ligament cells and the periodontal tissue of periodontitis mice: a preliminary study. Lab Anim Res 2023; 39:19. [PMID: 37653550 PMCID: PMC10472569 DOI: 10.1186/s42826-023-00171-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 08/10/2023] [Accepted: 08/17/2023] [Indexed: 09/02/2023] Open
Abstract
BACKGROUND Transient receptor potential canonical (TRPC) channels are non-selective cationic channels with permeability to Ca2+ and Na+. Despite their importance, there are currently few studies on TRPC in the periodontal ligament (PDL) and bone cells in the dental field. To provide biological information regarding TRPC in PDL cells and periodontal tissue, we evaluated TRPC channels expression in the osteoblast differentiation of PDL cells and periodontitis-induced tissue. Human PDL cells were cultured in osteogenic differentiation media for 28 days, and the expression of Runx2, osteocalcin (OCN), and TRPC1, 3, 4, and 6 was evaluated by real-time PCR. In ligature-induced periodontitis mice, the alveolar bone and osteoid areas, the osteoclast number, and the expression of Runx2, OCN, TRPC3, and TRPC6 was evaluated by H&E staining, TRAP staining, and immunohistochemistry, respectively. RESULTS In the PDL cell differentiation group, TRPC6 expression peaked on day 7 and TRPC3 expression generally increased during differentiation. During the 28 days of periodontitis progression, alveolar bone loss and osteoclast numbers increased compared to the control group during the experimental period and the osteoid area increased from day 14. TRPC6 expression in the periodontitis group increased in the PDL area and in the osteoblasts compared to the control group, whereas TRPC3 expression increased only in the PDL area on days 7 and 28. CONCLUSIONS These results indicate changes of TRPC3 and TRPC6 expression in PDL cells that were differentiating into osteoblasts and in periodontitis-induced tissue, suggesting the need for research on the role of TRPC in osteoblast differentiation or periodontitis progression.
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Affiliation(s)
- Aeryun Kim
- Department of Oral Biology, Yonsei University College of Dentistry, 134 Sinchon Dong, Seodaemun-gu, Seoul, 03722, Republic of Korea
- Oral Health Research Institute, Apple Tree Dental Hospital, Bucheon, 14642, Republic of Korea
| | - Ae Ri Kim
- Department of Oral Biology, Yonsei University College of Dentistry, 134 Sinchon Dong, Seodaemun-gu, Seoul, 03722, Republic of Korea
- BK21 FOUR Project, Yonsei University College of Dentistry, Seoul, 03722, Republic of Korea
| | - Yeong-Eui Jeon
- Department of Oral Biology, Yonsei University College of Dentistry, 134 Sinchon Dong, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Yun-Jung Yoo
- Department of Oral Biology, Yonsei University College of Dentistry, 134 Sinchon Dong, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Yu-Mi Yang
- Department of Oral Biology, Yonsei University College of Dentistry, 134 Sinchon Dong, Seodaemun-gu, Seoul, 03722, Republic of Korea.
| | - Eun-Jung Bak
- Department of Oral Biology, Yonsei University College of Dentistry, 134 Sinchon Dong, Seodaemun-gu, Seoul, 03722, Republic of Korea.
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Mack ML, Huang W, Chang SL. Involvement of TRPM7 in Alcohol-Induced Damage of the Blood-Brain Barrier in the Presence of HIV Viral Proteins. Int J Mol Sci 2023; 24:1910. [PMID: 36768230 PMCID: PMC9916124 DOI: 10.3390/ijms24031910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 12/22/2022] [Accepted: 01/14/2023] [Indexed: 01/21/2023] Open
Abstract
Ethanol (EtOH) exerts its effects through various protein targets, including transient receptor potential melastatin 7 (TRPM7) channels, which play an essential role in cellular homeostasis. We demonstrated that TRPM7 is expressed in rat brain microvascular endothelial cells (rBMVECs), the major cellular component of the blood-brain barrier (BBB). Heavy alcohol drinking is often associated with HIV infection, however mechanisms underlying alcohol-induced BBB damage and HIV proteins, are not fully understood. We utilized the HIV-1 transgenic (HIV-1Tg) rat to mimic HIV-1 patients on combination anti-retroviral therapy (cART) and demonstrated TRPM7 expression in rBMVECs wass lower in adolescent HIV-1Tg rats compared to control animals, however control and HIV-1Tg rats expressed similar levels at 9 weeks, indicating persistent presence of HIV-1 proteins delayed TRPM7 expression. Binge exposure to EtOH (binge EtOH) decreased TRPM7 expression in control rBMVECs in a concentration-dependent manner, and abolished TRPM7 expression in HIV-1Tg rats. In human BMVECs (hBMVECs), TRPM7 expression was downregulated after treatment with EtOH, HIV-1 proteins, and in combination. Next, we constructed in vitro BBB models using BMVECs and found TRPM7 antagonists enhanced EtOH-mediated BBB integrity changes. Our study demonstrated alcohol decreased TRPM7 expression, whereby TRPM7 could be involved in the mechanisms underlying BBB alcohol-induced damage in HIV-1 patients on cART.
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Affiliation(s)
- Michelle L. Mack
- Institute of NeuroImmune Pharmacology, Seton Hall University, South Orange, NJ 07079, USA
- Department of Biological Sciences, Seton Hall University, South Orange, NJ 07079, USA
| | - Wenfei Huang
- Institute of NeuroImmune Pharmacology, Seton Hall University, South Orange, NJ 07079, USA
- Department of Biological Sciences, Seton Hall University, South Orange, NJ 07079, USA
| | - Sulie L. Chang
- Institute of NeuroImmune Pharmacology, Seton Hall University, South Orange, NJ 07079, USA
- Department of Biological Sciences, Seton Hall University, South Orange, NJ 07079, USA
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Bonany M, Pérez-Berná AJ, Dučić T, Pereiro E, Martin-Gómez H, Mas-Moruno C, van Rijt S, Zhao Z, Espanol M, Ginebra MP. Hydroxyapatite nanoparticles-cell interaction: New approaches to disclose the fate of membrane-bound and internalised nanoparticles. BIOMATERIALS ADVANCES 2022; 142:213148. [PMID: 36274359 DOI: 10.1016/j.bioadv.2022.213148] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 09/03/2022] [Accepted: 10/06/2022] [Indexed: 06/16/2023]
Abstract
Hydroxyapatite nanoparticles are popular tools in bone regeneration, but they have also been used for gene delivery and as anticancer drugs. Understanding their mechanism of action, particularly for the latter application, is crucial to predict their toxicity. To this end, we aimed to elucidate the importance of nanoparticle membrane interactions in the cytotoxicity of MG-63 cells using two different types of nanoparticles. In addition, conventional techniques for studying nanoparticle internalisation were evaluated and compared with newer and less exploited approaches. Hydroxyapatite and magnesium-doped hydroxyapatite nanoparticles were used as suspensions or compacted as specular discs. Comparison between cells seeded on the discs and those supplemented with the nanoparticles allowed direct interaction of the cell membrane with the material to be ruled out as the main mechanism of toxicity. In addition, standard techniques such as flow cytometry were inconclusive when used to assess nanoparticles toxicity. Interestingly, the use of intracellular calcium fluorescent probes revealed the presence of a high number of calcium-rich vesicles after nanoparticle supplementation in cell culture. These structures could not be detected by transmission electron microscopy due to their liquid content. However, by using cryo-soft X-ray imaging, which was used to visualise the cellular ultrastructure without further treatment other than vitrification and to quantify the linear absorption coefficient of each organelle, it was possible to identify them as multivesicular bodies, potentially acting as calcium stores. In the study, an advanced state of degradation of the hydroxyapatite and magnesium-doped hydroxyapatite nanoparticles within MG-63 cells was observed. Overall, we demonstrate that the combination of fluorescent calcium probes together with cryo-SXT is an excellent approach to investigate intracellular calcium, especially when found in its soluble form.
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Affiliation(s)
- Mar Bonany
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC), 08019 Barcelona, Spain; Barcelona Research Centre in Multiscale Science and Engineering, UPC, 08019 Barcelona, Spain; Biomedical Engineering Research Center (CREB), UPC, 08028 Barcelona, Spain
| | | | - Tanja Dučić
- MISTRAL Beamline Experiments Division, ALBA Synchrotron Light Source, 08290 Barcelona, Spain
| | - Eva Pereiro
- MISTRAL Beamline Experiments Division, ALBA Synchrotron Light Source, 08290 Barcelona, Spain
| | - Helena Martin-Gómez
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC), 08019 Barcelona, Spain; Barcelona Research Centre in Multiscale Science and Engineering, UPC, 08019 Barcelona, Spain
| | - Carlos Mas-Moruno
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC), 08019 Barcelona, Spain; Barcelona Research Centre in Multiscale Science and Engineering, UPC, 08019 Barcelona, Spain; Biomedical Engineering Research Center (CREB), UPC, 08028 Barcelona, Spain
| | - Sabine van Rijt
- Department of Instructive Biomaterials Engineering, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, 6200, MD, Maastricht, the Netherlands
| | - Zhitong Zhao
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC), 08019 Barcelona, Spain; School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Montserrat Espanol
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC), 08019 Barcelona, Spain; Barcelona Research Centre in Multiscale Science and Engineering, UPC, 08019 Barcelona, Spain; Biomedical Engineering Research Center (CREB), UPC, 08028 Barcelona, Spain.
| | - Maria-Pau Ginebra
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC), 08019 Barcelona, Spain; Barcelona Research Centre in Multiscale Science and Engineering, UPC, 08019 Barcelona, Spain; Biomedical Engineering Research Center (CREB), UPC, 08028 Barcelona, Spain; Institute for Bioengineering of Catalonia (IBEC), Barcelona Institute of Science and Technology, 08028 Barcelona, Spain
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9
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Calcium-Permeable Channels Cooperation for Rheumatoid Arthritis: Therapeutic Opportunities. Biomolecules 2022; 12:biom12101383. [PMID: 36291594 PMCID: PMC9599458 DOI: 10.3390/biom12101383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/18/2022] [Accepted: 09/20/2022] [Indexed: 11/16/2022] Open
Abstract
Rheumatoid arthritis is a common autoimmune disease that results from the deposition of antibodies–autoantigens in the joints, leading to long-lasting inflammation. The main features of RA include cartilage damage, synovial invasion and flare-ups of intra-articular inflammation, and these pathological processes significantly reduce patients’ quality of life. To date, there is still no drug target that can act in rheumatoid arthritis. Therefore, the search for novel drug targets has become urgent. Due to their unique physicochemical properties, calcium ions play an important role in all cellular activities and the body has evolved a rigorous calcium signaling system. Calcium-permeable channels, as the main operators of calcium signaling, are widely distributed in cell membranes, endoplasmic reticulum membranes and mitochondrial membranes, and mediate the efflux and entry of Ca2+. Over the last century, more and more calcium-permeable channels have been identified in human cells, and the role of this large family of calcium-permeable channels in rheumatoid arthritis has gradually become clear. In this review, we briefly introduce the major calcium-permeable channels involved in the pathogenesis of RA (e.g., acid-sensitive ion channel (ASIC), transient receptor potential (TRP) channel and P2X receptor) and explain the specific roles and mechanisms of these calcium-permeable channels in the pathogenesis of RA, providing more comprehensive ideas and targets for the treatment of RA.
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Yao H, Zhang L, Yan S, He Y, Zhu H, Li Y, Wang D, Yang K. Low-intensity pulsed ultrasound/nanomechanical force generators enhance osteogenesis of BMSCs through microfilaments and TRPM7. J Nanobiotechnology 2022; 20:378. [PMID: 35964037 PMCID: PMC9375242 DOI: 10.1186/s12951-022-01587-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 08/03/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Low-intensity pulsed ultrasound (LIPUS) has been reported to accelerate fracture healing, but the mechanism is unclear and its efficacy needs to be further optimized. Ultrasound in combination with functionalized microbubbles has been shown to induce local shear forces and controllable mechanical stress in cells, amplifying the mechanical effects of LIPUS. Nanoscale lipid bubbles (nanobubbles) have high stability and good biosafety. However, the effect of LIPUS combined with functionalized nanobubbles on osteogenesis has rarely been studied. RESULTS In this study, we report cyclic arginine-glycine-aspartic acid-modified nanobubbles (cRGD-NBs), with a particle size of ~ 500 nm, able to actively target bone marrow mesenchymal stem cells (BMSCs) via integrin receptors. cRGD-NBs can act as nanomechanical force generators on the cell membrane, and further enhance the BMSCs osteogenesis and bone formation promoted by LIPUS. The polymerization of actin microfilaments and the mechanosensitive transient receptor potential melastatin 7 (TRPM7) ion channel play important roles in BMSCs osteogenesis promoted by LIPUS/cRGD-NBs. Moreover, the mutual regulation of TRPM7 and actin microfilaments promote the effect of LIPUS/cRGD-NBs. The extracellular Ca2 + influx, controlled partly by TRPM7, could participated in the effect of LIPUS/cRGD-NBs on BMSCs. CONCLUSIONS The nanomechanical force generators cRGD-NBs could promote osteogenesis of BMSCs and bone formation induced by LIPUS, through regulation TRPM7, actin cytoskeleton, and intracellular calcium oscillations. This study provides new directions for optimizing the efficacy of LIPUS for fracture healing, and a theoretical basis for the further application and development of LIPUS in clinical practice.
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Affiliation(s)
- Huan Yao
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Engineering Research Center of Stem Cell Therapy, Chongqing, 400014, China.,Department of Ultrasound, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Liang Zhang
- Department of Ultrasound, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Shujin Yan
- Department of Ultrasound, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Yiman He
- Department of Ultrasound, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Hui Zhu
- Department of Ultrasound, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Yasha Li
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Engineering Research Center of Stem Cell Therapy, Chongqing, 400014, China
| | - Dong Wang
- Department of Ultrasound, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Ke Yang
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Engineering Research Center of Stem Cell Therapy, Chongqing, 400014, China.
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Souza Bomfim GH, Niemeyer BA, Lacruz RS, Lis A. On the Connections between TRPM Channels and SOCE. Cells 2022; 11:1190. [PMID: 35406753 PMCID: PMC8997886 DOI: 10.3390/cells11071190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 03/23/2022] [Accepted: 03/30/2022] [Indexed: 12/02/2022] Open
Abstract
Plasma membrane protein channels provide a passageway for ions to access the intracellular milieu. Rapid entry of calcium ions into cells is controlled mostly by ion channels, while Ca2+-ATPases and Ca2+ exchangers ensure that cytosolic Ca2+ levels ([Ca2+]cyt) are maintained at low (~100 nM) concentrations. Some channels, such as the Ca2+-release-activated Ca2+ (CRAC) channels and voltage-dependent Ca2+ channels (CACNAs), are highly Ca2+-selective, while others, including the Transient Receptor Potential Melastatin (TRPM) family, have broader selectivity and are mostly permeable to monovalent and divalent cations. Activation of CRAC channels involves the coupling between ORAI1-3 channels with the endoplasmic reticulum (ER) located Ca2+ store sensor, Stromal Interaction Molecules 1-2 (STIM1/2), a pathway also termed store-operated Ca2+ entry (SOCE). The TRPM family is formed by 8 members (TRPM1-8) permeable to Mg2+, Ca2+, Zn2+ and Na+ cations, and is activated by multiple stimuli. Recent studies indicated that SOCE and TRPM structure-function are interlinked in some instances, although the molecular details of this interaction are only emerging. Here we review the role of TRPM and SOCE in Ca2+ handling and highlight the available evidence for this interaction.
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Affiliation(s)
- Guilherme H. Souza Bomfim
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY 10010, USA;
| | - Barbara A. Niemeyer
- Department of Molecular Biophysics, Center for Integrative Physiology and Molecular Medicine, School of Medicine, Saarland University, 66421 Homburg, Germany;
| | - Rodrigo S. Lacruz
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY 10010, USA;
| | - Annette Lis
- Department of Biophysics, Center for Integrative Physiology and Molecular Medicine, School of Medicine, Saarland University, 66421 Homburg, Germany
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Ouyang Y, Zhang R, Chen H, Chen L, Xi W, Li X, Zhang Q, Yan Y. Novel, degradable, and cytoactive bone cements based on magnesium polyphosphate and calcium citrate. NEW J CHEM 2022. [DOI: 10.1039/d2nj01706g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ideal bone-filling materials should be degradable and efficient for fast bone remodeling.
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Affiliation(s)
- Yalan Ouyang
- School of Chemical Engineering, Sichuan University, No. 24, Section 1, South First Ring Road, Chengdu 610065, P. R. China
| | - Rongguang Zhang
- School of Chemical Engineering, Sichuan University, No. 24, Section 1, South First Ring Road, Chengdu 610065, P. R. China
| | - Hong Chen
- College of Physics, Sichuan University, No. 24, Section 1, South First Ring Road, Chengdu 610065, P. R. China
| | - Lichao Chen
- School of Chemical Engineering, Sichuan University, No. 24, Section 1, South First Ring Road, Chengdu 610065, P. R. China
| | - Wenjing Xi
- College of Physics, Sichuan University, No. 24, Section 1, South First Ring Road, Chengdu 610065, P. R. China
| | - Xiaodan Li
- College of Physics, Sichuan University, No. 24, Section 1, South First Ring Road, Chengdu 610065, P. R. China
| | - Qiyi Zhang
- School of Chemical Engineering, Sichuan University, No. 24, Section 1, South First Ring Road, Chengdu 610065, P. R. China
| | - Yonggang Yan
- College of Physics, Sichuan University, No. 24, Section 1, South First Ring Road, Chengdu 610065, P. R. China
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Li C, Liu J, Wang D, Kong L, Wu Y, Zhou X, Jia J, Zhou H, Yan B. Electrostatic attraction of cationic pollutants by microplastics reduces their joint cytotoxicity. CHEMOSPHERE 2021; 282:131121. [PMID: 34470166 DOI: 10.1016/j.chemosphere.2021.131121] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 05/27/2021] [Accepted: 06/03/2021] [Indexed: 06/13/2023]
Abstract
Microplastic (MP) pollution causes global concerns regarding the consequential impacts on human health. In particular, MPs may act as vectors for various contaminants to induce adverse effects in human. In this work, the joint cytotoxicity of two different MPs co-exposed with diverse ionic pollutants was investigated in two cell lines from human digestive system: human gastric epithelium (GES-1) and colorectal mucosa (FHC) cell lines. The results indicated that the cytotoxicity of cationic pollutants was alleviated by MPs more significantly than that of anionic pollutants in both culture medium and river water. The electrostatic attraction between the negatively charged MPs and cations was a key factor in determining the ultimate joint toxicity. Our findings indicate that the joint cytotoxicity of MP-pollutant mixtures may be proactively reduced by modulating the surface charge of MPs.
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Affiliation(s)
- Cong Li
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong, 250100, China
| | - Jian Liu
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Institute of Environmental Research at Greater Bay, Guangzhou University, Guangzhou, Guangdong, 510006, China
| | - Dujia Wang
- School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong, 266237, China
| | - Long Kong
- School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong, 266237, China
| | - Yanxin Wu
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Institute of Environmental Research at Greater Bay, Guangzhou University, Guangzhou, Guangdong, 510006, China
| | - Xiaoxia Zhou
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Institute of Environmental Research at Greater Bay, Guangzhou University, Guangzhou, Guangdong, 510006, China
| | - Jianbo Jia
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Institute of Environmental Research at Greater Bay, Guangzhou University, Guangzhou, Guangdong, 510006, China
| | - Hongyu Zhou
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Institute of Environmental Research at Greater Bay, Guangzhou University, Guangzhou, Guangdong, 510006, China.
| | - Bing Yan
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Institute of Environmental Research at Greater Bay, Guangzhou University, Guangzhou, Guangdong, 510006, China; School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong, 266237, China.
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Andriulė I, Pangonytė D, Almanaitytė M, Patamsytė V, Kuprytė M, Karčiauskas D, Mubagwa K, Mačianskienė R. Evidence for the expression of TRPM6 and TRPM7 in cardiomyocytes from all four chamber walls of the human heart. Sci Rep 2021; 11:15445. [PMID: 34326388 PMCID: PMC8322396 DOI: 10.1038/s41598-021-94856-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 07/15/2021] [Indexed: 02/07/2023] Open
Abstract
The expression of the channels-enzymes TRPM6 and TRPM7 in the human heart remains poorly defined, and TRPM6 is generally considered not to be expressed in cardiomyocytes. We examined their expression at protein and mRNA levels using right atrial samples resected from patients (n = 72) with or without ischemic heart disease (IHD) and samples from all chamber walls of explanted human hearts (n = 9). TRPM6 and TRPM7 proteins were detected using immunofluorescence on isolated cardiomyocytes, ELISA on tissue homogenates, and immunostaining of cardiac tissue, whereas their mRNAs were detected by RT-qPCR. Both TRPM6 and TRPM7 were present in all chamber walls, with TRPM7 being more abundant. TRPM6 was co-expressed with TRPM7. The expression levels were dependent on cell incubation conditions (presence or absence of divalent cations, pH of the extracellular milieu, presence of TRP channel inhibitors 2-aminoethoxydiphenyl-borate and carvacrol). These drugs reduced TRPM7 immunofluorescence but increased that of TRPM6. TRPM6 and TRPM7 expression was increased in tissues from IHD patients. This is the first demonstration of the presence and co-expression of TRPM6 and TRPM7 in cardiomyocytes from all chamber walls of the human heart. The increased TRPM6 and TRPM7 expression in IHD suggests that the chanzymes are involved in the pathophysiology of the disease.
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Affiliation(s)
- Inga Andriulė
- Institute of Cardiology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Dalia Pangonytė
- Institute of Cardiology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Mantė Almanaitytė
- Institute of Cardiology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Vaiva Patamsytė
- Institute of Cardiology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Milda Kuprytė
- Institute of Cardiology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Dainius Karčiauskas
- Department of Cardiac, Thoracic and Vascular Surgery, Hospital of Lithuanian University of Health Sciences Kauno Klinikos, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Kanigula Mubagwa
- Department of Cardiovascular Sciences, Faculty of Medicine, KU Leuven, Leuven, Belgium
- Department of Basic Sciences, Faculty of Medicine, Université Catholique de Bukavu, Bukavu, DR, Congo
| | - Regina Mačianskienė
- Institute of Cardiology, Lithuanian University of Health Sciences, Kaunas, Lithuania.
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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: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [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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Tavangarian F, Zolko CA, Sadeghzade S, Fayed M, Davami K. Fabrication, Mechanical Properties and In-Vitro Behavior of Akermanite Bioceramic. MATERIALS (BASEL, SWITZERLAND) 2020; 13:ma13214887. [PMID: 33143317 PMCID: PMC7672555 DOI: 10.3390/ma13214887] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 10/19/2020] [Accepted: 10/27/2020] [Indexed: 06/11/2023]
Abstract
Pure nanocrystalline akermanite (Ca2MgSi2O7) powder was synthesized by mechanical activation with subsequent annealing of talc, calcium carbonate, and silicate powders as the initial materials. Powder samples were characterized by X-ray diffractometry (XRD), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), and transmission electron microscopy (TEM) techniques. The results showed that pure nanocrystalline akermanite with a crystalline size of 35 nm was synthesized after ball milling the initial powders for 20 h with subsequent annealing at 900 °C for 1 h. Mechanical properties of bulk akermanite samples were studied as well. The results showed that the produced akermanite tablets sintered at 1200 °C for 5 h had a Young's modulus of 3800 MPa, an ultimate compressive strength of 24.7 MPa, and a density of 2.489 g/cm3. The in-vitro behavior of the produced akermanite was evaluated by soaking the samples in an SBF solution. The results showed that the produced akermanite had the apatite formation ability on its surface and can be a good candidate for bone tissue engineering applications.
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Affiliation(s)
- Fariborz Tavangarian
- Mechanical Engineering Program, School of Science, Engineering and Technology, Pennsylvania State University, Harrisburg, Middletown, PA 17057, USA; (C.A.Z.); (S.S.)
| | - Caleb A. Zolko
- Mechanical Engineering Program, School of Science, Engineering and Technology, Pennsylvania State University, Harrisburg, Middletown, PA 17057, USA; (C.A.Z.); (S.S.)
| | - Sorour Sadeghzade
- Mechanical Engineering Program, School of Science, Engineering and Technology, Pennsylvania State University, Harrisburg, Middletown, PA 17057, USA; (C.A.Z.); (S.S.)
| | - Marwan Fayed
- Department of Mechanical and Nuclear Engineering, Pennsylvania State University, University Park, PA 16802, USA;
| | - Keivan Davami
- Department of Mechanical Engineering, University of Alabama, Tuscaloosa, AL 35487, USA;
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Shen J, Chen B, Zhai X, Qiao W, Wu S, Liu X, Zhao Y, Ruan C, Pan H, Chu PK, Cheung KM, Yeung KW. Stepwise 3D-spatio-temporal magnesium cationic niche: Nanocomposite scaffold mediated microenvironment for modulating intramembranous ossification. Bioact Mater 2020; 6:503-519. [PMID: 32995676 PMCID: PMC7492774 DOI: 10.1016/j.bioactmat.2020.08.025] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 08/28/2020] [Accepted: 08/29/2020] [Indexed: 12/15/2022] Open
Abstract
The fate of cells and subsequent bone regeneration is highly correlated with temporospatial coordination of chemical, biological, or physical cues within a local tissue microenvironment. Deeper understanding of how mammalian cells react to local tissue microenvironment is paramount important when designing next generation of biomaterials for tissue engineering. This study aims to investigate that the regulation of magnesium cationic (Mg2+) tissue microenvironment is able to convince early-stage bone regeneration and its mechanism undergoes intramembranous ossification. It was discovered that moderate Mg2+ content niche (~4.11 mM) led to superior bone regeneration, while Mg2+-free and strong Mg2+ content (~16.44 mM) discouraged cell adhesion, proliferation and osteogenic differentiation, thereby bone formation was rarely found. When magnesium ions diffused into free Mg zone from concentrated zone in late time point, new bone formation on free Mg zone became significant through intramembranous ossification. This study successfully demonstrates that magnesium cationic microenvironment serves as an effective biochemical cue and is able to modulate the process of bony tissue regeneration. The knowledge of how a Mg2+ cationic microenvironment intertwines with cells and subsequent bone formation gained from this study may provide a new insight to develop the next generation of tissue-repairing biomaterials. Regulation of Mg2+ concertation in tissue microenvironment can convince early-stage bone regeneration. Samples without and with strong Mg2+ microenvironments (16.44 mM) suppressed the osteogenic differentiation. When Mg2+ diffused into free Mg zone from concentrated zone over time, bone formation over free Mg zone becomes significant. Bone defect repair through intramembranous ossification was promoted by 3D-scaffold-created moderate Mg2+ microenvironment.
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Affiliation(s)
- Jie Shen
- Department of Orthopaedics and Traumatology, The University of Hong Kong, Hong Kong, China
- Shenzhen Key Laboratory for Innovative Technology in Orthopaedic Trauma, Department of Orthopaedics and Traumatology, the University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - Bo Chen
- Department of Orthopaedics and Traumatology, The University of Hong Kong, Hong Kong, China
- Shanghai Institute of Traumatology and Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Ruijin Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Xinyun Zhai
- School of Materials Science and Engineering, Nankai University, Tianjin, China
| | - Wei Qiao
- Department of Orthopaedics and Traumatology, The University of Hong Kong, Hong Kong, China
- Shenzhen Key Laboratory for Innovative Technology in Orthopaedic Trauma, Department of Orthopaedics and Traumatology, the University of Hong Kong-Shenzhen Hospital, Shenzhen, 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, China
- Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science & Engineering, Hubei University, Wuhan, China
| | - Xuanyong Liu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China
- Cixi Center of Biomaterials Surface Engineering, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Ningbo, China
| | - Ying Zhao
- Center for Human Tissues and Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Changshun Ruan
- Center for Human Tissues and Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Haobo Pan
- Center for Human Tissues and Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Paul K. Chu
- Department of Physics, Department of Materials Science & Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Hong Kong, China
| | - Kenneth M.C. Cheung
- Department of Orthopaedics and Traumatology, The University of Hong Kong, Hong Kong, China
- Shenzhen Key Laboratory for Innovative Technology in Orthopaedic Trauma, Department of Orthopaedics and Traumatology, the University of Hong Kong-Shenzhen Hospital, Shenzhen, 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, Department of Orthopaedics and Traumatology, the University of Hong Kong-Shenzhen Hospital, Shenzhen, China
- Corresponding author. Department of Orthopaedics and Traumatology, the University of Hong Kong, Hong Kong, China
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Hong F, Wu S, Zhang C, Li L, Chen J, Fu Y, Wang J. TRPM7 Upregulate the Activity of SMAD1 through PLC Signaling Way to Promote Osteogenesis of hBMSCs. BIOMED RESEARCH INTERNATIONAL 2020; 2020:9458983. [PMID: 32596398 PMCID: PMC7294393 DOI: 10.1155/2020/9458983] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 03/18/2020] [Accepted: 04/17/2020] [Indexed: 12/14/2022]
Abstract
TRPM7 is a member of the transient receptor potential cation channel (TRP channel) subfamily M and possesses both an ion channel domain and a functional serine/threonine α-kinase domain. It has been proven to play an essential role in the osteogenic differentiation of human bone marrow-derived mesenchymal stem cells (hBMSCs). However, the signaling pathway and molecular mechanism for TRPM7 in regulating osteogenic differentiation remain largely unknown. In this study, the potential role and mechanism of TRPM7 in the osteogenic differentiation of hBMSCs were investigated. The results showed that the expression of TRPM7 mRNA and protein increased, as did the osteogenic induction time. Upregulation or inhibition of TRPM7 could promote or inhibit the osteogenic differentiation of hBMSCs for 14 days. It was also found that the upregulation or inhibition of TRPM7 promoted or inhibited the activity of PLC and SMAD1, respectively, during osteogenic differentiation. PLC could promote osteogenic differentiation by upregulating the activity of SMAD1. However, inhibition of PLC alone could reduce the activity of SMAD1 but not inhibit completely the activation of SMAD1. Therefore, we inferred that it is an important signaling pathway for TRPM7 to upregulate the activity of SMAD1 through PLC and thereby promote the osteogenic differentiation of hBMSCs, but it is not a singular pathway. TRPM7 may also regulate the activation of SMAD1 through other ways, except for PLC, during osteogenic differentiation of hBMSCs.
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Affiliation(s)
- Fanfan Hong
- Institute of Cell and Development Biology, College of Life Sciences, Zijingang Campus, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Shali Wu
- Institute of Cell and Development Biology, College of Life Sciences, Zijingang Campus, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Cui Zhang
- Institute of Cell and Development Biology, College of Life Sciences, Zijingang Campus, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Liang Li
- Institute of Cell and Development Biology, College of Life Sciences, Zijingang Campus, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Jianling Chen
- Institute of Cell and Development Biology, College of Life Sciences, Zijingang Campus, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Yong Fu
- Department of ENT, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, Zhejiang, China
| | - Jinfu Wang
- Institute of Cell and Development Biology, College of Life Sciences, Zijingang Campus, Zhejiang University, Hangzhou, Zhejiang 310058, China
- Department of ENT, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, Zhejiang, China
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Liu X, He X, Jin D, Wu S, Wang H, Yin M, Aldalbahi A, El-Newehy M, Mo X, Wu J. A biodegradable multifunctional nanofibrous membrane for periodontal tissue regeneration. Acta Biomater 2020; 108:207-222. [PMID: 32251784 DOI: 10.1016/j.actbio.2020.03.044] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 03/17/2020] [Accepted: 03/30/2020] [Indexed: 01/14/2023]
Abstract
Biomaterial-based membranes represent a promising therapeutic option for periodontal diseases. Although conventional periodontal membranes function greatly in preventing the ingrowth of both fibroblasts and epithelial cells as well as connective tissues, they are not capable of promoting periodontal tissue regeneration. Here, we report a multifunctional periodontal membrane prepared by electrospinning biodegradable polymers with magnesium oxide nanoparticles (nMgO). nMgO is a light metal-based nanoparticle with high antibacterial capacity and can be fully resorbed in the body. Our results showed that incorporating nMgO into poly(L-lactic acid) (PLA)/gelatin significantly improved the overall properties of membranes, including elevated tensile strength to maintain structural stability and adjusted degradation rate to fit the time window of periodontal regeneration. Acidic degradation products of PLA were neutralized by alkaline ions from nMgO hydrolysis, ameliorating pH microenvironment beneficial for cell proliferation. In vitro studies demonstrated considerable antibacterial and osteogenic properties of nMgO-incorporated membranes that are highly valuable for periodontal regeneration. Further investigations in a rat periodontal defect model revealed that nMgO-incorporated membranes effectively guided periodontal tissue regeneration. Taken together, our data indicate that nMgO-incorporated membranes might be a promising therapeutic option for periodontal regeneration. STATEMENT OF SIGNIFICANCE: Traditional clinical treatments of periodontal diseases largely focus on the management of the pathologic processes, which cannot effectively regenerate the lost periodontal tissue. GTR, a classic method for periodontal regeneration, has shown promise in clinical practice. However, the current membranes might not fully fulfill the criteria of ideal membranes. Here, we report bioabsorbable nMgO-incorporated nanofibrous membranes prepared by electrospinning to provide an alternative for the clinical practice of GTR. The membranes not only function greatly as physical barriers but also exhibit high antibacterial and osteoinductive properties. We therefore believe that this study will inspire more practice work on the development of effective GTR membranes for periodontal regeneration.
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Affiliation(s)
- Xuezhe Liu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, PR China
| | - Xi He
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, PR China
| | - Dawei Jin
- Department of Cardiothoracic Surgery, Shanghai Children's Medical Center, Shanghai Jiaotong University School of Medicine, Shanghai 200127, PR China
| | - Shuting Wu
- Department of Cardiothoracic Surgery, Shanghai Children's Medical Center, Shanghai Jiaotong University School of Medicine, Shanghai 200127, PR China
| | - Hongsheng Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, PR China
| | - Meng Yin
- Department of Cardiothoracic Surgery, Shanghai Children's Medical Center, Shanghai Jiaotong University School of Medicine, Shanghai 200127, PR China
| | - Ali Aldalbahi
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohamed El-Newehy
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Xiumei Mo
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, PR China.
| | - Jinglei Wu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, PR China; Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhi Zao Ju Road, Shanghai 200011, PR China.
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20
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Lee S, Lee S, Lee A, Sim HJ, Kim GA, Kang BJ, Kim WH. The Presence and Distribution of TRPM7 in the Canine Mammary Glands. Animals (Basel) 2020; 10:ani10030466. [PMID: 32168794 PMCID: PMC7142925 DOI: 10.3390/ani10030466] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 03/04/2020] [Accepted: 03/09/2020] [Indexed: 12/12/2022] Open
Abstract
The transient receptor potential melastatin-subfamily member 7 (TRPM7) cation channel is a bifunctional ion channel with intrinsic kinase activity and is ubiquitously expressed in the animal/human body. Accumulated knowledge of TRPM7 suggests that it plays an essential role in normal physiological processes, including the development, survival, proliferation, differentiation, and migration of cells. The aim of this study was to demonstrate the presence and expression patterns of TRPM7 in normal canine mammary glands using reverse transcription-polymerase chain reaction (RT-PCR), Western blotting, and immunohistochemistry. Normal mammary gland tissue samples were obtained from five female beagle dogs. RT-PCR and sequencing of the amplified PCR products demonstrated the presence of TRPM7 mRNA in normal mammary glands, and the presence of TRPM7 protein was confirmed by Western blotting. Immunohistochemical investigations demonstrated the expression of TRPM7 in the apical membrane of acinar and ductal epithelial cells in the canine mammary glands. These results provide the first evidence of the presence and distribution of TRPM7 in the canine mammary gland and could help explain the physiological and pathological roles of TRPM7 in the canine mammary gland; however, additional studies are required to elucidate these roles.
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Affiliation(s)
- Sungin Lee
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea; (S.L.); (S.L.); (H.J.S.); (G.A.K.); (B.-J.K.)
| | - Seulji Lee
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea; (S.L.); (S.L.); (H.J.S.); (G.A.K.); (B.-J.K.)
| | - Aeri Lee
- Seeu Animal Medical Center, 24, Ichon-ro 64 gil, Younsan-gu, Seoul 04427, Korea;
| | - Hun Ju Sim
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea; (S.L.); (S.L.); (H.J.S.); (G.A.K.); (B.-J.K.)
| | - Geon A. Kim
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea; (S.L.); (S.L.); (H.J.S.); (G.A.K.); (B.-J.K.)
| | - Byung-Jae Kang
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea; (S.L.); (S.L.); (H.J.S.); (G.A.K.); (B.-J.K.)
| | - Wan Hee Kim
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea; (S.L.); (S.L.); (H.J.S.); (G.A.K.); (B.-J.K.)
- Correspondence:
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21
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Yang Z, Yue Z, Ma X, Xu Z. Calcium Homeostasis: A Potential Vicious Cycle of Bone Metastasis in Breast Cancers. Front Oncol 2020; 10:293. [PMID: 32211326 PMCID: PMC7076168 DOI: 10.3389/fonc.2020.00293] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 02/19/2020] [Indexed: 12/12/2022] Open
Abstract
Cancers have been considered as one of the most severe health problems in the world. Efforts to elucidate the cancer progression reveal the importance of bone metastasis for tumor malignancy, one of the leading causes for high mortality rate. Multiple cancers develop bone metastasis, from which breast cancers exhibit the highest rate and have been well-recognized. Numerous cells and environmental factors have been believed to synergistically facilitate bone metastasis in breast cancers, from which breast cancer cells, osteoclasts, osteoblasts, and their produced cytokines have been well-recognized to form a vicious cycle that aggravates tumor malignancy. Except the cytokines or chemokines, calcium ions are another element largely released from bones during bone metastasis that leads to hypercalcemia, however, have not been well-characterized yet in modulation of bone metastasis. Calcium ions act as a type of unique second messenger that exhibits omnipotent functions in numerous cells, including tumor cells, osteoclasts, and osteoblasts. Calcium ions cannot be produced in the cells and are dynamically fluxed among extracellular calcium pools, intracellular calcium storages and cytosolic calcium signals, namely calcium homeostasis, raising a possibility that calcium ions released from bone during bone metastasis would further enhance bone metastasis and aggravate tumor progression via the vicious cycle due to abnormal calcium homeostasis in breast cancer cells, osteoclasts and osteoblasts. TRPs, VGCCs, SOCE, and P2Xs are four major calcium channels/routes mediating extracellular calcium entry and affect calcium homeostasis. Here we will summarize the overall functions of these four calcium channels in breast cancer cells, osteoclasts and osteoblasts, providing evidence of calcium homeostasis as a vicious cycle in modulation of bone metastasis in breast cancers.
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Affiliation(s)
- Zhengfeng Yang
- Shanghai Institute of Immunology Center for Microbiota & Immune Related Diseases, Institute of Translational Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhiying Yue
- Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xinrun Ma
- Shanghai Institute of Immunology Center for Microbiota & Immune Related Diseases, Institute of Translational Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhenyao Xu
- Shanghai Institute of Immunology Center for Microbiota & Immune Related Diseases, Institute of Translational Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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22
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Lin Z, Wu S, Liu X, Qian S, Chu PK, Zheng Y, Cheung KMC, Zhao Y, Yeung KWK. A surface-engineered multifunctional TiO 2 based nano-layer simultaneously elevates the corrosion resistance, osteoconductivity and antimicrobial property of a magnesium alloy. Acta Biomater 2019; 99:495-513. [PMID: 31518705 DOI: 10.1016/j.actbio.2019.09.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 08/12/2019] [Accepted: 09/06/2019] [Indexed: 12/18/2022]
Abstract
Magnesium biometals exhibit great potentials for orthopeadic applications owing to their biodegradability, bioactive effects and satisfactory mechanical properties. However, rapid corrosion of Mg implants in vivo combined with large amount of hydrogen gas evolution is harmful to bone healing process which seriously confines their clinical applications. Enlightened by the superior biocompatibility and corrosion resistance of passive titanium oxide layer automatically formed on titanium alloy, we employ the Ti and O dual plasma ion immersion implantation (PIII) technique to construct a multifunctional TiO2 based nano-layer on ZK60 magnesium substrates for enhanced corrosion resistance, osteoconductivity and antimicrobial activity. The constructed nano-layer (TiO2/MgO) can effectively suppress degradation rate of ZK60 substrates in vitro and still maintain 94% implant volume after post-surgery eight weeks. In animal study, a large amount of bony tissue with increased bone mineral density and trabecular thickness is formed around the PIII treated group in post-operation eight weeks. Moreover, the newly formed bone in the PIII treated group is well mineralized and its mechanical property almost restores to the level of that of surrounding mature bone. Surprisingly, a remarkable killing ratio of 99.31% against S. aureus can be found on the PIII treated sample under ultra-violet (UV) irradiation which mainly attributes to the oxidative stress induced by the reactive oxygen species (ROS). We believe that this multifunctional TiO2 based nano-layer not only controls the degradation of magnesium implant, but also regulates its implant-to-bone integration effectively. STATEMENT OF SIGNIFICANCE: Rapid corrosion of magnesium implants is the major issue for orthopaedic applications. Inspired by the biocompatibility and corrosion resistance of passive titanium oxide layer automatically formed on titanium alloy, we construct a multifunctional TiO2/MgO nanolayer on magnesium substrates to simultaneously achieve superior corrosion resistance, satisfactory osteoconductivity in rat intramedullary bone defect model and excellent antimicrobial activity against S. aureus under UV irradiation. The current findings suggest that the specific TiO2/MgO nano-layer on magnesium surface can achieve the three objectives aforementioned and we believe this study can demonstrate the potential of biodegradable metals for future clinical applications.
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Affiliation(s)
- Zhengjie Lin
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, PR China; 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
| | - 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
| | - Xuanyong Liu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
| | - Shi Qian
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China; Cixi Center of Biomaterials Surface Engineering, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Ningbo, PR 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
| | - Yufeng Zheng
- State Key Laboratory for Turbulence and Complex System and Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China
| | - Kenneth M C Cheung
- Department of Orthopaedics and Traumatology, The University of Hong Kong, Hong Kong, China
| | - Ying Zhao
- Centre for Human Tissues and Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, 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.
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23
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A functionalized TiO2/Mg2TiO4 nano-layer on biodegradable magnesium implant enables superior bone-implant integration and bacterial disinfection. Biomaterials 2019; 219:119372. [DOI: 10.1016/j.biomaterials.2019.119372] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 07/01/2019] [Accepted: 07/17/2019] [Indexed: 01/08/2023]
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24
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Sadeghzade S, Emadi R, Tavangarian F, Doostmohammadi A. The influence of polycaporolacton fumarate coating on mechanical properties and in vitro behavior of porous diopside-hardystonite nano-composite scaffold. J Mech Behav Biomed Mater 2019; 101:103445. [PMID: 31569038 DOI: 10.1016/j.jmbbm.2019.103445] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 06/05/2019] [Accepted: 09/22/2019] [Indexed: 12/19/2022]
Abstract
One of the significant challenges in bone tissue engineering is the fabrication of highly porous scaffolds with interconnected pores and appropriate mechanical properties. Artificial scaffolds which used in the field of medicine are usually made of single phase of polymer or ceramic. However, composition of these materials can produce the scaffolds with improve mechanical and biological properties.The aim of this study is to synthesize three-dimensional hardystonite-diopside (HT-Dio) porous scaffolds modified by polycaporolacton fumarate coating for low-load-bearing bone tissue engineering applications. The results showed that hardystonite scaffolds with 15 wt. % diopside and 6 w/v % polymer polycaporolacton fumarate (PCLF) had a significant bioactivity. The cell culture and cell attachment assay results revealed the well spreading of BMS cells on the surface of modified scaffolds which indicates the high biocompatibility of this scaffold. The modified scaffolds had a mean pore size, porosity, compressive strength, modules and toughness of 293.47 ± 5.51 μm, 74% ± 1.01, 3.37 ± 0.6 MPa, 151 ± 1.1 MPa and 31.3 ± 0.32 kJ/m3, respectively, which are in the appropriate range for spongy bone and hence can be a good candidate for bone tissue engineering applications.
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Affiliation(s)
- Sorour Sadeghzade
- Materials Research Group, Department of Materials Engineering, Isfahan University of Technology, Isfahan, 84156-83111, Iran; Mechanical Engineering Program, School of Science, Engineering and Technology, Pennsylvania State University, Harrisburg, Middletown, PA, 17057, USA
| | - Rahmatollah Emadi
- Materials Research Group, Department of Materials Engineering, Isfahan University of Technology, Isfahan, 84156-83111, Iran
| | - Fariborz Tavangarian
- Mechanical Engineering Program, School of Science, Engineering and Technology, Pennsylvania State University, Harrisburg, Middletown, PA, 17057, USA.
| | - Ali Doostmohammadi
- Department of Mechanical Engineering, Lassonde School of Engineering, York University, Toronto, M3J1P3, Canada
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25
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Surface degradation-enabled osseointegrative, angiogenic and antiinfective properties of magnesium-modified acrylic bone cement. J Orthop Translat 2019; 17:121-132. [PMID: 31194022 PMCID: PMC6551367 DOI: 10.1016/j.jot.2019.04.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 04/06/2019] [Accepted: 04/29/2019] [Indexed: 12/13/2022] Open
Abstract
Objective This work focuses on tackling the inadequate bone/implant interface strength of acrylic bone cements, which is a formidable problem diminishing their clinical performance, especially in percutaneous kyphoplasty surgery. Methods A new strategy of incorporating magnesium particles into clinically used poly(methylmethacrylate) (PMMA) bone cement to prepare a surface-degradable bone cement (SdBC) is proposed and validated both in vitro and in vivo. Results This surface degradation characteristic enables osseointegrative, angiogenic and antiinfective properties. SdBC showed fast surface degradation and formed porous surfaces as designed, while the desirable high compressive strengths (≥70 MPa) of the cement were preserved. Besides, the SdBC with proper Mg content promoted osteoblast adhesion, spreading, proliferation and endothelial cell angiogenesis capacity compared with PMMA. Also, SdBC demonstrated clear inhibitory effect on Staphylococcus aureus and Escherichia coli. In vivo evaluation on SdBC by the rat femur defect model showed that the bone/implant interface strength was significantly enhanced in SdBC (push-out force of 11.8 ± 1.5 N for SdBC vs 7.0 ± 2.3N for PMMA), suggesting significantly improved osseointegration and bone growth induced by the surface degradation of the cement. The injectability, setting times and compressive strengths of SdBC with proper content of Mg particles (2.8 wt% and 5.4 wt%) were comparable with those of the clinical acrylic bone cement, while the heat release during polymerization was reduced (maximum temperature 78 ± 1 °C for PMMA vs 73.3 ± 1.5 °C for SdBC). Conclusions This work validates a new concept of designing bioactive bone/implant interface in PMMA bone cement. And this surface-degradable bone cement possesses great potential for minimally invasive orthopaedic surgeries such as percutaneous kyphoplasty. The translational potential of this article This work reports PMMA/Mg surface-degradable acrylic bone cements that possess enhanced osseointegrative, angiogenic and antiinfective properties that are lacking in the clinically used acrylic bone cements. This new kind of bone cements could improve the treatment outcome of many orthopaedic surgeries such as percutaneous kyphoplasty and arthroplasty.
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Zou ZG, Rios FJ, Montezano AC, Touyz RM. TRPM7, Magnesium, and Signaling. Int J Mol Sci 2019; 20:E1877. [PMID: 30995736 PMCID: PMC6515203 DOI: 10.3390/ijms20081877] [Citation(s) in RCA: 94] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 04/12/2019] [Accepted: 04/12/2019] [Indexed: 12/17/2022] Open
Abstract
The transient receptor potential melastatin-subfamily member 7 (TRPM7) is a ubiquitously expressed chanzyme that possesses an ion channel permeable to the divalent cations Mg2+, Ca2+, and Zn2+, and an α-kinase that phosphorylates downstream substrates. TRPM7 and its homologue TRPM6 have been implicated in a variety of cellular functions and is critically associated with intracellular signaling, including receptor tyrosine kinase (RTK)-mediated pathways. Emerging evidence indicates that growth factors, such as EGF and VEGF, signal through their RTKs, which regulate activity of TRPM6 and TRPM7. TRPM6 is primarily an epithelial-associated channel, while TRPM7 is more ubiquitous. In this review we focus on TRPM7 and its association with growth factors, RTKs, and downstream kinase signaling. We also highlight how interplay between TRPM7, Mg2+ and signaling kinases influences cell function in physiological and pathological conditions, such as cancer and preeclampsia.
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Affiliation(s)
- Zhi-Guo Zou
- Institute of Cardiovascular and Medical Sciences, BHF Glasgow Cardiovascular Centre, University of Glasgow, Glasgow G12 8TA, UK.
| | - Francisco J Rios
- Institute of Cardiovascular and Medical Sciences, BHF Glasgow Cardiovascular Centre, University of Glasgow, Glasgow G12 8TA, UK.
| | - Augusto C Montezano
- Institute of Cardiovascular and Medical Sciences, BHF Glasgow Cardiovascular Centre, University of Glasgow, Glasgow G12 8TA, UK.
| | - Rhian M Touyz
- Institute of Cardiovascular and Medical Sciences, BHF Glasgow Cardiovascular Centre, University of Glasgow, Glasgow G12 8TA, UK.
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27
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Obata A, Ogasawara T, Kasuga T. Combinatorial effects of inorganic ions on adhesion and proliferation of osteoblast‐like cells. J Biomed Mater Res A 2019; 107:1042-1051. [DOI: 10.1002/jbm.a.36623] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 01/24/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Akiko Obata
- Division of Advanced Ceramics, Graduate School of EngineeringNagoya Institute of Technology Nagoya Japan
| | - Toru Ogasawara
- Division of Advanced Ceramics, Graduate School of EngineeringNagoya Institute of Technology Nagoya Japan
| | - Toshihiro Kasuga
- Division of Advanced Ceramics, Graduate School of EngineeringNagoya Institute of Technology Nagoya Japan
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28
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Liu J, Hu G, Gong Y, Yu Q, He B, Li W, He Z, Hao W, He Z, Liu Y. Silencing of TRPM8 inhibits aggressive tumor phenotypes and enhances gemcitabine sensitivity in pancreatic cancer. Pancreatology 2018; 18:935-944. [PMID: 30316690 DOI: 10.1016/j.pan.2018.08.011] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 07/04/2018] [Accepted: 08/21/2018] [Indexed: 12/11/2022]
Abstract
The transient receptor potential TRPM8 ion channel is required for cellular proliferation in pancreatic epithelia and adenocarcinoma. To elucidate the mechanism that mediates the function of TRPM8, we examined its role in the proliferation and invasion of pancreatic cancer (PC) cells. TRPM8 expression increased in both the PC tissues and cell lines; a high TRPM8 expression was correlated with poorer prognosis in patients with PC. In PC cell lines, PACN-1 and BxPC-3, Ca2+ influxes could be evoked by TRPM8; the sensitivity of PC cells to gemcitabine was increased, while the proliferation and invasion of PC cells were suppressed after RNA interference-mediated silencing of TRPM8. The mechanism of TRPM8 in gemcitabine-based chemotherapy was then investigated. The expression and activity of multidrug resistance-associated proteins, P-gp, MRP-2, LRP, was significantly reduced in response to TRPM8 silence. Moreover, TRPM8 knockdown significantly increased hENT1 protein levels and the ratio of Bax/Bcl-2 while decreased the protein levels of RRM1. Thus, TRPM8 is required for PC cell proliferation and invasion and was closely related to the gemcitabine sensitivity of PC. The modulation of TRPM8 expression may help improve treatment response of PC by combining with traditional chemotherapy.
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Affiliation(s)
- JieFeng Liu
- Department of General Surgery, The Fourth Hospital of Changsha, Hunan Normal University, Changsha, 410006, People's Republic of China
| | - GuoHuang Hu
- Department of General Surgery, The Fourth Hospital of Changsha, Hunan Normal University, Changsha, 410006, People's Republic of China
| | - YuJing Gong
- Department of General Surgery, The Fourth Hospital of Changsha, Hunan Normal University, Changsha, 410006, People's Republic of China
| | - QianLe Yu
- Department of General Surgery, The Fourth Hospital of Changsha, Hunan Normal University, Changsha, 410006, People's Republic of China
| | - Bin He
- Department of General Surgery, The Fourth Hospital of Changsha, Hunan Normal University, Changsha, 410006, People's Republic of China
| | - WangHao Li
- Department of General Surgery, The Fourth Hospital of Changsha, Hunan Normal University, Changsha, 410006, People's Republic of China
| | - ZhiGuo He
- Department of General Surgery, The Fourth Hospital of Changsha, Hunan Normal University, Changsha, 410006, People's Republic of China
| | - WenJie Hao
- Department of General Surgery, The Fourth Hospital of Changsha, Hunan Normal University, Changsha, 410006, People's Republic of China
| | - ZiChao He
- Department of General Surgery, The Fourth Hospital of Changsha, Hunan Normal University, Changsha, 410006, People's Republic of China
| | - YiPing Liu
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, 410078, People's Republic of China.
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Zhou R, Han Y, Cao J, Li M, Jin G, Du Y, Luo H, Yang Y, Zhang L, Su B. Enhanced Osseointegration of Hierarchically Structured Ti Implant with Electrically Bioactive SnO 2-TiO 2 Bilayered Surface. ACS APPLIED MATERIALS & INTERFACES 2018; 10:30191-30200. [PMID: 30130089 DOI: 10.1021/acsami.8b10928] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The poor osseointegration of Ti implant significantly compromise its application in load-bearing bone repair and replacement. Electrically bioactive coating inspirited from heterojunction on Ti implant can benefit osseointegration but cannot avoid the stress shielding effect between bone and implant. To resolve this conflict, hierarchically structured Ti implant with electrically bioactive SnO2-TiO2 bilayered surface has been developed to enhance osseointegration. Benefiting from the electric cue offered by the built-in electrical field of SnO2-TiO2 heterojunction and the topographic cue provided by the hierarchical surface structure to bone regeneration, the osteoblastic function of basic multicellular units around the implant is significantly improved. Because the individual TiO2 or SnO2 coating with uniform surface exhibits no electrical bioactivity, the effects of electric and topographic cues to osseointegration have been decoupled via the analysis of in vivo performance for the placed Ti implant with different surfaces. The developed Ti implant shows significantly improved osseointegration with excellent bone-implant contact, improved mineralization of extracellular matrix, and increased push-out force. These results suggest that the synergistic strategy of combing electrical bioactivity with hierarchical surface structure provides a new platform for developing advanced endosseous implants.
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Affiliation(s)
- Rui Zhou
- Bristol Dental School , University of Bristol , Bristol BS1 2LY , U.K
| | | | - Jianyun Cao
- School of Materials , University of Manchester , Manchester M13 9PL , U.K
| | - Ming Li
- Honghui Hospital , Xi'an Jiaotong University College of Medicine , Xi'an 710054 , P. R. China
| | | | - Yuzhou Du
- School of Materials Science and Engineering , Xi'an University of Technology , Xi'an 710048 , P. R. China
| | | | | | | | - Bo Su
- Bristol Dental School , University of Bristol , Bristol BS1 2LY , U.K
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Zhang X, Li H, Lin C, Ning C, Lin K. Synergetic topography and chemistry cues guiding osteogenic differentiation in bone marrow stromal cells through ERK1/2 and p38 MAPK signaling pathway. Biomater Sci 2018; 6:418-430. [PMID: 29340362 DOI: 10.1039/c7bm01044c] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Both the topographic surface and chemical composition modification can enhance rapid osteogenic differentiation and bone formation. Till now, the synergetic effects of topography and chemistry cues guiding biological responses have been rarely reported. Herein, the ordered micro-patterned topography and classically essential trace element of strontium (Sr) ion doping were selected to imitate topography and chemistry cues, respectively. The ordered micro-patterned topography on Sr ion-doped bioceramics was successfully duplicated using the nylon sieve as the template. Biological response results revealed that the micro-patterned topography design or Sr doping could promote cell attachment, ALP activity, and osteogenic differentiation of bone marrow-derived mesenchymal stem cells (BMSCs). Most importantly, the samples both with micro-patterned topography and Sr doping showed the highest promotion effects, and could synergistically activate the ERK1/2 and p38 MAPK signaling pathways. The results suggested that the grafts with both specific topography and chemistry cues have synergetic effects on osteogenic activity of BMSCs and provide an effective approach to design functional bone grafts and cell culture substrates.
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Affiliation(s)
- Xinran Zhang
- School & Hospital of Stomatology, Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai 200072, China.
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31
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Lin Z, Wu J, Qiao W, Zhao Y, Wong KH, Chu PK, Bian L, Wu S, Zheng Y, Cheung KM, Leung F, Yeung KW. Precisely controlled delivery of magnesium ions thru sponge-like monodisperse PLGA/nano-MgO-alginate core-shell microsphere device to enable in-situ bone regeneration. Biomaterials 2018; 174:1-16. [DOI: 10.1016/j.biomaterials.2018.05.011] [Citation(s) in RCA: 111] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 05/05/2018] [Accepted: 05/05/2018] [Indexed: 12/18/2022]
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Takahashi K, Umebayashi C, Numata T, Honda A, Ichikawa J, Hu Y, Yamaura K, Inoue R. TRPM7-mediated spontaneous Ca 2+ entry regulates the proliferation and differentiation of human leukemia cell line K562. Physiol Rep 2018; 6:e13796. [PMID: 30033625 PMCID: PMC6055029 DOI: 10.14814/phy2.13796] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 06/20/2018] [Accepted: 06/24/2018] [Indexed: 11/30/2022] Open
Abstract
Continuous Ca2+ influx is essential to maintain intracellular Ca2+ homeostasis and its dysregulation leads to a variety of cellular dysfunctions. In this study, we explored the functional roles of spontaneous Ca2+ influx for the proliferation and differentiation of a human erythromyeloid leukemia cell line K562. mRNA/protein expressions were assessed by the real-time RT-PCR, western blotting, and immunocytochemical staining. Intracellular Ca2+ concentration ([Ca2+ ]i ) and ionic currents were measured by fluorescent imaging and patch clamping techniques, respectively. Cell counting/viability and colorimetric assays were applied to assess proliferation rate and hemoglobin synthesis, respectively. Elimination of extracellular Ca2+ decreased basal [Ca2+ ]i in proliferating K562 cells. Cation channel blockers such as SK&F96365, 2-APB, Gd3+ , and FTY720 dose dependently decreased basal [Ca2+ ]i . A spontaneously active inward current (Ispont ) contributive to basal [Ca2+ ]i was identified by the nystatin-perforated whole-cell recording. Ispont permeated Ca2+ comparably to Na+ , and was greatly eliminated by siRNA targeting TRPM7, a melastatin member of the transient receptor potential (TRP) superfamily. Consistent with these findings, TRPM7 immune reactivity was detected by western blotting, and immunofluorescence representing TRPM7 was found localized to the K562 cell membrane. Strikingly, all these procedures, that is, Ca2+ removal, TRPM7 blockers and siRNA-mediated TRPM7 knockdown significantly retarded the growth and suppressed hemin-induced γ-globin and hemoglobin syntheses in K562 cells, respectively, both of which appeared associated with the inhibition of ERK activation. These results collectively suggest that spontaneous Ca2+ influx through constitutively active TRPM7 channels may critically regulate both proliferative and erythroid differentiation potentials of K562 cells.
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Affiliation(s)
- Kiriko Takahashi
- Department of PhysiologyFukuoka University School of MedicineFukuokaJapan
- Department of AnesthesiologyFukuoka University School of MedicineFukuokaJapan
| | - Chisato Umebayashi
- Department of PhysiologyFukuoka University School of MedicineFukuokaJapan
| | - Tomohiro Numata
- Department of PhysiologyFukuoka University School of MedicineFukuokaJapan
| | - Akira Honda
- Department of PhysiologyFukuoka University School of MedicineFukuokaJapan
| | - Jun Ichikawa
- Department of PhysiologyFukuoka University School of MedicineFukuokaJapan
| | - Yaopeng Hu
- Department of PhysiologyFukuoka University School of MedicineFukuokaJapan
| | - Ken Yamaura
- Department of AnesthesiologyFukuoka University School of MedicineFukuokaJapan
| | - Ryuji Inoue
- Department of PhysiologyFukuoka University School of MedicineFukuokaJapan
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Zhang M, Chen X, Pu X, Liao X, Huang Z, Yin G. Dissolution behavior of CaO-MgO-SiO2
-based multiphase bioceramic powders and effects of the released ions on osteogenesis. J Biomed Mater Res A 2017; 105:3159-3168. [DOI: 10.1002/jbm.a.36154] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Revised: 06/28/2017] [Accepted: 06/29/2017] [Indexed: 01/02/2023]
Affiliation(s)
- Mengjiao Zhang
- College of Materials Science and Engineering; Sichuan University; Chengdu 610064 People's Republic of China
| | - Xianchun Chen
- College of Materials Science and Engineering; Sichuan University; Chengdu 610064 People's Republic of China
| | - Ximing Pu
- College of Materials Science and Engineering; Sichuan University; Chengdu 610064 People's Republic of China
| | - Xiaoming Liao
- College of Materials Science and Engineering; Sichuan University; Chengdu 610064 People's Republic of China
| | - Zhongbing Huang
- College of Materials Science and Engineering; Sichuan University; Chengdu 610064 People's Republic of China
| | - Guangfu Yin
- College of Materials Science and Engineering; Sichuan University; Chengdu 610064 People's Republic of China
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Zierler S, Hampe S, Nadolni W. TRPM channels as potential therapeutic targets against pro-inflammatory diseases. Cell Calcium 2017; 67:105-115. [PMID: 28549569 DOI: 10.1016/j.ceca.2017.05.002] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 05/02/2017] [Indexed: 02/08/2023]
Abstract
The immune system protects our body against foreign pathogens. However, if it overshoots or turns against itself, pro-inflammatory diseases, such as rheumatoid arthritis, inflammatory bowel disease, or diabetes develop. Ions, the most basic signaling molecules, shape intracellular signaling cascades resulting in immune cell activation and subsequent immune responses. Mutations in ion channels required for calcium signaling result in human immunodeficiencies and highlight those ion channels as valued targets for therapies against pro-inflammatory diseases. Signaling pathways regulated by melastatin-like transient receptor potential (TRPM) cation channels also play crucial roles in calcium signaling and leukocyte physiology, affecting phagocytosis, degranulation, chemokine and cytokine expression, chemotaxis and invasion, as well as lymphocyte development and proliferation. Therefore, this review discusses their regulation, possible interactions and whether they can be exploited as targets for therapeutic approaches to pro-inflammatory diseases.
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Affiliation(s)
- Susanna Zierler
- Walther Straub Institute of Pharmacology and Toxicology, LMU Munich, Germany.
| | - Sarah Hampe
- Walther Straub Institute of Pharmacology and Toxicology, LMU Munich, Germany
| | - Wiebke Nadolni
- Walther Straub Institute of Pharmacology and Toxicology, LMU Munich, Germany
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Yang X, Al Hegy A, Gauthier ER, Gray-Munro J. Influence of mixed organosilane coatings with variable RGD surface densities on the adhesion and proliferation of human osteosarcoma Saos-2 cells to magnesium alloy AZ31. Bioact Mater 2017; 2:35-43. [PMID: 29744409 PMCID: PMC5935023 DOI: 10.1016/j.bioactmat.2017.01.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 01/18/2017] [Accepted: 01/19/2017] [Indexed: 01/23/2023] Open
Abstract
In the last decade, the use of magnesium and its alloys as biodegradable implant materials has become increasingly accepted. However, surface modification of these materials to control the degradation rate in the early stages of healing and improve their biocompatibility is crucial to the successful implementation of magnesium alloy implants in medicine. Cell adhesion and proliferation at the implant surface is a vital factor for successful integration of a biomaterial within the body. Cells accomplish this task by binding to ligands such as the arginine-glycine-aspartic acid peptide sequence (RGD) commonly found on adhesive proteins present in the extracellular matrix. In this paper, we report a biomimetic surface modification strategy involving deposition of a mixed organosilane layer on Mg AZ31 followed by covalent immobilization of RGD peptides through a heterobifunctional cross-linker molecule. Our results indicate that with optimized deposition conditions uniform organosilane coatings were successfully deposited on the Mg AZ31 substrate. Furthermore, we have demonstrated that the surface density of immobilized RGD can be varied by depositing organosilane layers from solutions containing two different organosilanes in specified ratios. Increases in cell adhesion and cell proliferation were observed on the surface modified substrates. A simple method for preparing organosilane coatings with variable RGD surface density was developed. Surface modification resulted in improved cell adhesion compared to bare Mg. Cell proliferation at the mixed organosilane coated magnesium alloy surface was strongly affected by the RGD surface density.
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Affiliation(s)
- Xiaoxi Yang
- Dept. of Chemistry and Biochemistry, Laurentian University, Sudbury, Ontario, P3E 2C6, Canada
| | - Afrah Al Hegy
- Dept. of Chemistry and Biochemistry, Laurentian University, Sudbury, Ontario, P3E 2C6, Canada
| | - Eric R Gauthier
- Dept. of Chemistry and Biochemistry, Laurentian University, Sudbury, Ontario, P3E 2C6, Canada
| | - Joy Gray-Munro
- Dept. of Chemistry and Biochemistry, Laurentian University, Sudbury, Ontario, P3E 2C6, Canada
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Aripiprazole inhibits polyI:C-induced microglial activation possibly via TRPM7. Schizophr Res 2016; 178:35-43. [PMID: 27614570 DOI: 10.1016/j.schres.2016.08.022] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Revised: 08/20/2016] [Accepted: 08/20/2016] [Indexed: 12/13/2022]
Abstract
Viral infections during fetal and adolescent periods, as well as during the course of schizophrenia itself have been linked to the onset and/or relapse of a psychosis. We previously reported that the unique antipsychotic aripiprazole, a partial D2 agonist, inhibits the release of tumor necrosis factor (TNF)-α from interferon-γ-activated rodent microglial cells. Polyinosinic-polycytidylic acid (polyI:C) has recently been used as a standard model of viral infections, and recent in vitro studies have shown that microglia are activated by polyI:C. Aripiprazole has been reported to ameliorate behavioral abnormalities in polyI:C-induced mice. To clarify the anti-inflammatory properties of aripiprazole, we investigated the effects of aripiprazole on polyI:C-induced microglial activation in a cellular model of murine microglial cells and possible surrogate cells for human microglia. PolyI:C treatment of murine microglial cells activated the production of TNF-α and enhanced the p38 mitogen-activated protein kinase (MAPK) pathway, whereas aripiprazole inhibited these responses. In addition, polyI:C treatment of possible surrogate cells for human microglia markedly increased TNF-α mRNA expression in cells from three healthy volunteers. Aripiprazole inhibited this increase in cells from two individuals. PolyI:C consistently increased intracellular Ca2+ concentration ([Ca2+]i) in murine microglial cells by influx of extracellular Ca2+. We demonstrated that transient receptor potential in melastatin 7 (TRPM7) channels contributed to this polyI:C-induced increase in [Ca2+]i. Taken together, these data suggest that aripiprazole may be therapeutic for schizophrenia by reducing microglial inflammatory reactions, and TRPM7 may be a novel therapeutic target for schizophrenia. Further studies are needed to validate these findings.
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Kim JA, Lim J, Naren R, Yun HS, Park EK. Effect of the biodegradation rate controlled by pore structures in magnesium phosphate ceramic scaffolds on bone tissue regeneration in vivo. Acta Biomater 2016; 44:155-67. [PMID: 27554019 DOI: 10.1016/j.actbio.2016.08.039] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 08/13/2016] [Accepted: 08/19/2016] [Indexed: 12/24/2022]
Abstract
UNLABELLED Similar to calcium phosphates, magnesium phosphate (MgP) ceramics have been shown to be biocompatible and support favorable conditions for bone cells. Micropores below 25μm (MgP25), between 25 and 53μm (MgP53), or no micropores (MgP0) were introduced into MgP scaffolds using different sizes of an NaCl template. The porosities of MgP25 and MgP53 were found to be higher than that of MgP0 because of their micro-sized pores. Both in vitro and in vivo analysis showed that MgP scaffolds with high porosity promoted rapid biodegradation. Implantation of the MgP0, MgP25, and MgP53 scaffolds into rabbit calvarial defects (with 4- and 6-mm diameters) was assessed at two times points (4 and 8weeks), followed by analysis of bone regeneration. The micro-CT and histologic analyses of the 4-mm defect showed that the MgP25 and MgP53 scaffolds were degraded completely at 4weeks with simultaneous bone and marrow-like structure regeneration. For the 6-mm defect, a similar pattern of regeneration was observed. These results indicate that the rate of degradation is associated with bone regeneration. The MgP25 and MgP53 scaffold-implanted bone showed a better lamellar structure and enhanced calcification compared to the MgP0 scaffold because of their porosity and degradation rate. Tartrate-resistant acid phosphatase (TRAP) staining indicated that the newly formed bone was undergoing maturation and remodeling. Overall, these data suggest that the pore architecture of MgP ceramic scaffolds greatly influence bone formation and remodeling activities and thus should be considered in the design of new scaffolds for long-term bone tissue regeneration. STATEMENT OF SIGNIFICANCE The pore structural conditions of scaffold, including porosity, pore size, pore morphology, and pore interconnectivity affect cell ingrowth, mechanical properties and biodegradabilities, which are key components of scaffold in bone tissue regeneration. In this study, we designed hierarchical pore structure of the magnesium phosphate (MgP) scaffold by combination of the 3D printing process, self-setting reaction and salt-leaching technique, and first studied the effect of pore structures of bioceramic scaffolds on bone tissue regeneration through both in vitro and in vivo studies (rabbit calvarial model). The MgP scaffolds with higher porosity promoted more rapid biodegradation and enhanced new bone formation and remodeling activities at the same time.
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Lin CM, Ma JM, Zhang L, Hao ZY, Zhou J, Zhou ZY, Shi HQ, Zhang YF, Shao EM, Liang CZ. Inhibition of Transient Receptor Potential Melastain 7 Enhances Apoptosis Induced by TRAIL in PC-3 cells. Asian Pac J Cancer Prev 2016; 16:4469-75. [PMID: 26028116 DOI: 10.7314/apjcp.2015.16.10.4469] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Transient receptor potential melastain 7 (TRPM7) is a bifunctional protein with dual structure of both ion channel and protein kinase, participating in a wide variety of diseases including cancer. Recent researches have reported the mechanism of TRPM7 in human cancers. However, the correlation between TRPM7 and prostate cancer (PCa) has not been well studied. The objective of this study was to investigate the potential the role of TRPM7 in the apoptosis of PC-3 cells, which is the key cell of advanced metastatic PCa. In this study, we demonstrated the influence and potential function of TRPM7 on the PC-3 cells apoptosis induced by TNF-related apoptosis inducing-ligand (TRAIL). The study also found a novel up-regulated expression of TRPM7 in PC-3 cells after treating with TRAIL. Suppression of TRPM7 by TRPM7 non-specific inhibitors (Gd3+ or 2-aminoethoxy diphenylborate (2-APB) ) not only markedly eliminated TRPM7 expression level, but also increased the apoptosis of TRAIL-treated PC-3 cells, which may be regulated by the phosphatidylinositol 3-kinase/protein kinase B (PI3K/AKT) signaling pathway accompany with up-regulated expression of cleaved Caspase-3, (TRAIL-receptor 1, death receptors 4) DR4, and (TRAIL-receptor 2, death receptors 5) DR5. Taken together, our findings strongly suggested that TRPM7 was involved in the apoptosis of PC-3 cells induced by TRAIL, indicating that TRPM7 may be applied as a therapeutic target for PCa.
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Affiliation(s)
- Chang-Ming Lin
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China E-mail :
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Wu L, Feyerabend F, Schilling AF, Willumeit-Römer R, Luthringer BJC. Effects of extracellular magnesium extract on the proliferation and differentiation of human osteoblasts and osteoclasts in coculture. Acta Biomater 2015; 27:294-304. [PMID: 26318802 DOI: 10.1016/j.actbio.2015.08.042] [Citation(s) in RCA: 118] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Revised: 08/24/2015] [Accepted: 08/25/2015] [Indexed: 11/16/2022]
Abstract
Coculture of osteoblasts and osteoclasts is a subject of interest in the understanding of how magnesium (Mg)-based implants influence the bone metabolism and remodeling upon degradation. Human telomerase reverse transcriptase (hTERT) transduced mesenchymal stem cells (SCP-1) were first differentiated into osteoblasts with osteogenic supplements and then further cocultured with peripheral blood mononucleated cells (PBMC) without the addition of osteoclastogenesis promoting factors. Concomitantly, the cultures were exposed to variable Mg extract dilutions (0, 30×, 10×, 5×, 3×, 2× and 1×). Phenotype characterization documented that while 2× dilution of Mg extract was extremely toxic to osteoclast monoculture, monocytes in coculture with osteoblasts exhibited a greater tolerance to higher Mg extract concentration. The dense growth of osteoblasts in cultures with 1× dilution of Mg extract suggested that high concentration of Mg extract promoted osteoblast proliferation/differentiation behavior. The results of intracellular alkaline phosphatase (ALP) and tartrate-resistant acid phosphatase (TRAP) activities as well as protein and gene expressions of receptor activator of nuclear factor kappa-B ligand (RANKL), macrophage colony-stimulating factor (M-CSF), and osteoclast-associated receptor (OSCAR) revealed significantly enhanced formation of osteoblasts whereas decreased osteoclastogenesis in the cultures with high concentrations of Mg extract (2× and 1× dilutions). In conclusion, while an increased osteoinductivity has been demonstrated, the impact of potentially decreased osteoclastogenesis around the Mg-based implants should be also taken into account. Cocultures containing both bone-forming osteoblasts and bone-resorbing osteoclasts should be preferentially performed for in vitro cytocompatibility assessment of Mg-based implants as they more closely mimic the in vivo environment. STATEMENT OF SIGNIFICANCE An attractive human osteoblasts and osteoclasts cocultivation regime was developed as an in vitro cytocompatibility model for magnesium implants. Parameters in terms of cellular proliferation and differentiation behaviors were investigated and we conclude that high concentration of magnesium extract could lead to a promotion in osteoblastogenesis but an inhibition in osteoclastogenesis. It could contribute to the repeated observations of enhanced bone growth adjacent to degradable magnesium alloys. More interestingly, it demonstrates that compared to monoculture, osteoclasts in cocultures with osteoblasts exhibited higher tolerance to the culture environment with high magnesium extract. It might attribute to the neutralization process of the alkaline medium by acid generated by increased amount of osteoblasts in the condition with high concentration of Mg extract. The submitted work could be of significant importance to other researchers working in the related field(s), thus appealing to the readership of Acta Biomaterialia.
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Affiliation(s)
- Lili Wu
- Institute of Materials Research, Division of Metallic Biomaterials, Helmholtz-Zentrum Geesthacht (HZG), 21502 Geesthacht, Germany; Department of Plastic Surgery and Hand Surgery, Klinikum Rechts der Isar, Technical University Munich (TUM), D-81675 Munich, Germany
| | - Frank Feyerabend
- Institute of Materials Research, Division of Metallic Biomaterials, Helmholtz-Zentrum Geesthacht (HZG), 21502 Geesthacht, Germany
| | - Arndt F Schilling
- Department of Plastic Surgery and Hand Surgery, Klinikum Rechts der Isar, Technical University Munich (TUM), D-81675 Munich, Germany
| | - Regine Willumeit-Römer
- Institute of Materials Research, Division of Metallic Biomaterials, Helmholtz-Zentrum Geesthacht (HZG), 21502 Geesthacht, Germany
| | - Bérengère J C Luthringer
- Institute of Materials Research, Division of Metallic Biomaterials, Helmholtz-Zentrum Geesthacht (HZG), 21502 Geesthacht, Germany.
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Tassinary JA, Lunardelli A, Basso BS, Stülp S, Pozzobon A, Pedrazza L, Bartrons R, Ventura F, Rosa JL, Melo DA, Nunes FB, Donadio MV, Oliveira JR. Therapeutic ultrasound stimulates MC3T3-E1 cell proliferation through the activation of NF-κB1, p38α, and mTOR. Lasers Surg Med 2015; 47:765-72. [DOI: 10.1002/lsm.22414] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/07/2015] [Indexed: 11/05/2022]
Affiliation(s)
- João A.F. Tassinary
- Univates; Lajeado; Rio Grande do Sul Brazil
- Laboratório de Pesquisa em Biofísica Celular e Inflamação; Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS); Porto Alegre, Rio Grande do Sul Brazil
| | - Adroaldo Lunardelli
- Laboratório de Pesquisa em Biofísica Celular e Inflamação; Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS); Porto Alegre, Rio Grande do Sul Brazil
| | - Bruno S. Basso
- Laboratório de Pesquisa em Biofísica Celular e Inflamação; Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS); Porto Alegre, Rio Grande do Sul Brazil
| | | | | | - Leonardo Pedrazza
- Laboratório de Pesquisa em Biofísica Celular e Inflamação; Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS); Porto Alegre, Rio Grande do Sul Brazil
| | | | | | | | - Denizar A.S. Melo
- Laboratório de Pesquisa em Biofísica Celular e Inflamação; Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS); Porto Alegre, Rio Grande do Sul Brazil
| | - Fernanda B. Nunes
- Laboratório de Pesquisa em Biofísica Celular e Inflamação; Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS); Porto Alegre, Rio Grande do Sul Brazil
| | - Márcio V.F. Donadio
- Laboratório de Pesquisa em Biofísica Celular e Inflamação; Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS); Porto Alegre, Rio Grande do Sul Brazil
| | - Jarbas R. Oliveira
- Laboratório de Pesquisa em Biofísica Celular e Inflamação; Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS); Porto Alegre, Rio Grande do Sul Brazil
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Wang J, Witte F, Xi T, Zheng Y, Yang K, Yang Y, Zhao D, Meng J, Li Y, Li W, Chan K, Qin L. Recommendation for modifying current cytotoxicity testing standards for biodegradable magnesium-based materials. Acta Biomater 2015; 21:237-49. [PMID: 25890098 DOI: 10.1016/j.actbio.2015.04.011] [Citation(s) in RCA: 228] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Revised: 03/20/2015] [Accepted: 04/02/2015] [Indexed: 11/27/2022]
Abstract
As one of the most promising medical metal implants, magnesium (Mg) or its alloys have shown significant advantages over other candidates attributed to not only their excellent biodegradability and suitable mechanical properties but also their osteopromotive effects for bone applications. Prior to approval mandated by the governmental regulatory body, the access to the medical market for Mg-based implants requires a series of testing for assurance of their safety and efficacy via preclinical evaluations and clinical tests including phase 1 and 2 evaluations, and phase 3 of multi-center randomized double blind and placebo-controlled clinical trials. However, as the most widely used protocols for biosafety evaluation of medical devices, current ISO 10993 standards should be carefully reevaluated when directly applying them to predict potential health risks of degradable Mg based biomaterials via cytotoxicity tests due to the huge gap between in vitro and in vivo conditions. Therefore, instead of a direct adoption, modification of current ISO standards for in vitro cytotoxicity test is desirable and justified. The differences in sensitivities of cells to in vitro and in vivo Mg ions and the capability of in vivo circulation system to dilute local degradation products were fully considered to propose modification of current ISO standards. This paper recommended a minimal 6 times to a maximal 10 times dilution of extracts for in vitro cytotoxicity test specified in ISO 10993 part 5 for pure Mg developed as potential orthopedic implants based on literature review and our specifically designed in vitro and in vivo tests presented in the study. Our work may contribute to the progress of biodegradable metals involved translational work.
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Affiliation(s)
- Jiali Wang
- Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong Special Administrative Region; Center for Translational Medicine Research and Development, Institute of Biomedical and Health Engineering, Chinese Academy of Sciences, Shenzhen 518055, China; Guangdong Innovation Team for Biodegradable Magnesium and Medical Implants, Dongguan E-ande Co. Ltd, Dongguan, China; Shenzhen Bioactive Materials Engineering Lab for Medicine, Shenzhen 518055, China
| | - Frank Witte
- Julius Wolff Institute and Center for Musculoskeletal Surgery, Berlin-Brandenburg Center for Regenerative Therapies, Charité - Universitätsmedizin Berlin, Augustenburger Platz 1, 13353 Berlin, Germany; Guangdong Innovation Team for Biodegradable Magnesium and Medical Implants, Dongguan E-ande Co. Ltd, Dongguan, China
| | - Tingfei Xi
- Center for Biomedical Materials and Tissue Engineering, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China; Guangdong Innovation Team for Biodegradable Magnesium and Medical Implants, Dongguan E-ande Co. Ltd, Dongguan, China
| | - Yufeng Zheng
- State Key Laboratory for Turbulence and Complex System and Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China; Guangdong Innovation Team for Biodegradable Magnesium and Medical Implants, Dongguan E-ande Co. Ltd, Dongguan, China
| | - Ke Yang
- Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China; Guangdong Innovation Team for Biodegradable Magnesium and Medical Implants, Dongguan E-ande Co. Ltd, Dongguan, China
| | - Yuansheng Yang
- Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China; Guangdong Innovation Team for Biodegradable Magnesium and Medical Implants, Dongguan E-ande Co. Ltd, Dongguan, China
| | - Dewei Zhao
- Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian 116622, China
| | - Jian Meng
- China Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China; Guangdong Innovation Team for Biodegradable Magnesium and Medical Implants, Dongguan E-ande Co. Ltd, Dongguan, China
| | - Yangde Li
- Guangdong Innovation Team for Biodegradable Magnesium and Medical Implants, Dongguan E-ande Co. Ltd, Dongguan, China
| | - Weirong Li
- Guangdong Innovation Team for Biodegradable Magnesium and Medical Implants, Dongguan E-ande Co. Ltd, Dongguan, China
| | - Kaiming Chan
- Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong Special Administrative Region
| | - Ling Qin
- Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong Special Administrative Region; Center for Translational Medicine Research and Development, Institute of Biomedical and Health Engineering, Chinese Academy of Sciences, Shenzhen 518055, China; Guangdong Innovation Team for Biodegradable Magnesium and Medical Implants, Dongguan E-ande Co. Ltd, Dongguan, China.
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Lee HJ, Kim MC, Lim B, Kim BJ. Buxus Microphylla var. Koreana Nakai Extract for the Treatment of Gastric Cancer. J Pharmacopuncture 2015; 16:39-45. [PMID: 25780674 PMCID: PMC4331968 DOI: 10.3831/kpi.2013.16.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2013] [Accepted: 06/12/2013] [Indexed: 11/24/2022] Open
Abstract
Objectives: Buxus Microphylla var. Koreana Nakai Extract (BMKNE) is used as a folk remedy for malaria and veneral disease. In the present study, we investigated the effects of BMKNE in the growth and the survival of AGS cells, the most common human gastric adenocarcinoma cell lines. Methods: The AGS cells were treated with varying concentrations of BMKNE. Analyses of the sub G1 peak, the caspase-3 and -9 activities, and the mitochondrial depolarization were conducted to determine whether AGS cell death occured by apoptosis. Also, to identify the role of transient receptor potential melastatin (TRPM) 7 channels in AGS cell growth and survival, we used human embryonic kidney (HEK) 293 cells overexpressed with TRPM7 channels. Results: Experimental results showed that the sub G1 peak, the caspase-3 and -9 activities, and the mitochondrial depolarization were increased. Therefore, BMKNE was found to induce the apoptosis of these cells, and this apoptosis was inhibited by SB203580 (a p38 mitogen-activated protein kinase (MAPK) inhibitor), and by a c-jun NH2-terminal kinase (JNK) II inhibitor. Furthermore, BMKNE inhibited TRPM7 currents and TRPM7 channel over-expressions in HEK 293 cells, exacerbating BMKNE-induced cell death. Conclusions: These findings indicate that BMKNE inhibits the growth and the survival of gastric cancer cells due to a blockade of the TRPM7 channel’s activity and MAPK signaling. Therefore, BMKNE is a potential drug for treatment of gastric cancer, and both the TRPM7 channel and MAPK signaling may play an important role in survival in gastric cancer cells.
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Affiliation(s)
- Hee Jung Lee
- Division of Longevity and Biofunctional Medicine, Pusan National University School of Korean Medicine, Yangsan, Korea
| | - Min Chul Kim
- Division of Longevity and Biofunctional Medicine, Pusan National University School of Korean Medicine, Yangsan, Korea
| | - Bora Lim
- Division of Longevity and Biofunctional Medicine, Pusan National University School of Korean Medicine, Yangsan, Korea
| | - Byung Joo Kim
- Division of Longevity and Biofunctional Medicine, Pusan National University School of Korean Medicine, Yangsan, Korea
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Lim B, Lee HJ, Kim MC, Kim BJ. Effects of Ulmi Pumilae Cortex on AGS Gastric Cancer Cells. J Pharmacopuncture 2015; 16:55-61. [PMID: 25780669 PMCID: PMC4331962 DOI: 10.3831/kpi.2013.16.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2013] [Accepted: 04/19/2013] [Indexed: 11/09/2022] Open
Abstract
OBJECTIVE Ulmi Pumilae Cortex(UPC) is a deciduous tree with uneven pinnate leaves and is classified as a subfamily of Ulmuceae and contains many pharmacologically active constituents. The aim of this study was to investigate the effects of UPC on the growth and survival of AGS cells, the most common human gastric adenocarcinoma cell lines. METHODS The AGS cells were treated with varying concentrations of UPC. Analyses of the sub G1, caspase-3 activity, and mitochondrial depolarization were conducted to determine whether AGS cell death occured by apoptosis. Furthermore, to identify the role of the transient receptor potential melastatin (TRPM) 7 channels in AGS cell growth and survival, we used human embryonic kidney (HEK) 293 cells overexpressed with TRPM7 channels. RESULTS The addition of UPC to a culture medium inhibited AGS cell growth and survival. Experimental results showed that the sub G1, caspase-3 activity, and mitochondrial depolarization were increased. Furthermore, TRPM7 channel overexpression in HEK 293 cells exacerbated UPC-induced cell death. CONCLUSION These findings indicate that UPC inhibits the growth and survival of gastric cancer cells due to a blockade of the TRPM7 channel activity. Therefore, UPC is a potential drug for treatment of gastric cancer, and TRPM7 channels may play an important role in survival in cases of gastric cancer.
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Affiliation(s)
- Bora Lim
- Division of Longevity and Biofunctional Medicine, Pusan National University School of Korean Medicine, Yangsan, Korea
| | - Hee Jung Lee
- Division of Longevity and Biofunctional Medicine, Pusan National University School of Korean Medicine, Yangsan, Korea
| | - Min Chul Kim
- Division of Longevity and Biofunctional Medicine, Pusan National University School of Korean Medicine, Yangsan, Korea
| | - Byung Joo Kim
- Division of Longevity and Biofunctional Medicine, Pusan National University School of Korean Medicine, Yangsan, Korea
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45
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Feng P, Gao C, Shuai C, Peng S. Toughening and strengthening mechanisms of porous akermanite scaffolds reinforced with nano-titania. RSC Adv 2015. [DOI: 10.1039/c4ra12095g] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Akermanite possesses excellent biocompatibility and biodegradability, while low fracture toughness and brittleness have limited its use in load bearing sites of bone tissue.
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Affiliation(s)
- Pei Feng
- State Key Laboratory of High Performance Complex Manufacturing
- Central South University
- Changsha
- China
| | - Chengde Gao
- State Key Laboratory of High Performance Complex Manufacturing
- Central South University
- Changsha
- China
| | - Cijun Shuai
- State Key Laboratory of High Performance Complex Manufacturing
- Central South University
- Changsha
- China
- Orthopedic Biomedical Materials Institute
| | - Shuping Peng
- Hunan Provincial Tumor Hospital and the Affiliated Tumor Hospital of Xiangya School of Medicine
- Central South University
- Changsha
- China
- School of Basic Medical Science
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46
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Visser D, Middelbeek J, van Leeuwen FN, Jalink K. Function and regulation of the channel-kinase TRPM7 in health and disease. Eur J Cell Biol 2014; 93:455-65. [DOI: 10.1016/j.ejcb.2014.07.001] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 06/24/2014] [Accepted: 07/01/2014] [Indexed: 11/30/2022] Open
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47
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Hwang MW, Kim BJ. Apoptotic Effects and Involvement of TRPM7 Channels of the Traditional Herbal Medicine, Dangkwisoo-San in Gastric Cancer Cells. INT J PHARMACOL 2014. [DOI: 10.3923/ijp.2014.398.405] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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48
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Cui L, Xu S, Ma D, Wu B. Response to the 'Letter to the editor by Xu JL'. Int Endod J 2014; 47:1000. [PMID: 25203172 DOI: 10.1111/iej.12285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- L Cui
- Department of Stomatology, Maoming People's Hospital, Maoming, China
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49
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Yee NS, Kazi AA, Yee RK. Cellular and Developmental Biology of TRPM7 Channel-Kinase: Implicated Roles in Cancer. Cells 2014; 3:751-77. [PMID: 25079291 PMCID: PMC4197629 DOI: 10.3390/cells3030751] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2014] [Revised: 07/15/2014] [Accepted: 07/15/2014] [Indexed: 12/29/2022] Open
Abstract
The transient receptor potential melastatin-subfamily member 7 (TRPM7) is a ubiquitously expressed cation-permeable ion channel with intrinsic kinase activity that plays important roles in various physiological functions. Biochemical and electrophysiological studies, in combination with molecular analyses of TRPM7, have generated insights into its functions as a cellular sensor and transducer of physicochemical stimuli. Accumulating evidence indicates that TRPM7 channel-kinase is essential for cellular processes, such as proliferation, survival, differentiation, growth, and migration. Experimental studies in model organisms, such as zebrafish, mouse, and frog, have begun to elucidate the pleiotropic roles of TRPM7 during embryonic development from gastrulation to organogenesis. Aberrant expression and/or activity of the TRPM7 channel-kinase have been implicated in human diseases including a variety of cancer. Studying the functional roles of TRPM7 and the underlying mechanisms in normal cells and developmental processes is expected to help understand how TRPM7 channel-kinase contributes to pathogenesis, such as malignant neoplasia. On the other hand, studies of TRPM7 in diseases, particularly cancer, will help shed new light in the normal functions of TRPM7 under physiological conditions. In this article, we will provide an updated review of the structural features and biological functions of TRPM7, present a summary of current knowledge of its roles in development and cancer, and discuss the potential of TRPM7 as a clinical biomarker and therapeutic target in malignant diseases.
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Affiliation(s)
- Nelson S Yee
- Division of Hematology-Oncology, Department of Medicine, Penn State College of Medicine, Program of Experimental Therapeutics, Penn State Hershey Cancer Institute, Penn State Milton S, Hershey Medical Center, Pennsylvania State University, Hershey, PA 17033, USA.
| | - Abid A Kazi
- Division of Hematology-Oncology, Department of Medicine, Penn State College of Medicine, Program of Experimental Therapeutics, Penn State Hershey Cancer Institute, Penn State Milton S, Hershey Medical Center, Pennsylvania State University, Hershey, PA 17033, USA.
| | - Rosemary K Yee
- Schreyer Honors College, Pennsylvania State University, University Park, PA 16802, USA; Penn State Harrisburg School of Humanities, Pennsylvania State University, Middletown, PA 17057, USA.
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Zhang L, Yang C, Li J, Zhu Y, Zhang X. High extracellular magnesium inhibits mineralized matrix deposition and modulates intracellular calcium signaling in human bone marrow-derived mesenchymal stem cells. Biochem Biophys Res Commun 2014; 450:1390-5. [PMID: 25010642 DOI: 10.1016/j.bbrc.2014.07.004] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2014] [Accepted: 07/01/2014] [Indexed: 02/07/2023]
Abstract
Mesenchymal stem cells (MSCs) have the potential to differentiate into several cell types and provide an attractive source of autologous cells for regenerative medicine. However, their cellular biology is not fully understood. Similar to Ca(2+), extracellular Mg(2+) plays an important role in the functions of the skeletal system. Here, we examined the effects of extracellular Mg(2+) on the deposition of calcium phosphate matrix and Ca(2+) signaling with or without ATP stimulation in human bone marrow-derived mesenchymal stem cells (hBMSCs). We found that high extracellular Mg(2+) concentration ([Mg(2+)]e) inhibited extracellular matrix mineralization in hBMSCs in vitro. hBMSCs also produced a dose-dependent decrease in the frequency of calcium oscillations during [Mg(2+)]e elevation with a slight suppression on oscillation amplitude. In addition, spontaneous ATP release was inhibited under high [Mg(2+)]e levels and exogenous ATP addition stimulated oscillation reappear. Taken together, our results indicate that high [Mg(2+)]e modulates calcium oscillations via suppression of spontaneous ATP release and inactivates purinergic receptors, resulting in decreased extracellular mineralized matrix deposition in hBMSCs. Therefore, the high magnesium environment created by the rapid corrosion of Mg alloys may result in the dysfunction of calcium-dependent physiology processes and be disadvantageous to hBMSCs physiology.
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Affiliation(s)
- Li Zhang
- Department of Orthopedics, Tenth People's Hospital, Shanghai Tong Ji University School of Medicine, 301 Middle Yanchang Road, Shanghai 200072, People's Republic of China; The First Clinical Medical College, Nanjing Medical University, 140 Hanzhong Road, Nanjing 210029, People's Republic of China
| | - Chunxi Yang
- Department of Orthopedics, Tenth People's Hospital, Shanghai Tong Ji University School of Medicine, 301 Middle Yanchang Road, Shanghai 200072, People's Republic of China.
| | - Jiao Li
- The Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Jiao Tong University School of Medicine (SJTUSM), Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai 200025, People's Republic of China
| | - Yuchang Zhu
- Department of Orthopedics, Tenth People's Hospital, Shanghai Tong Ji University School of Medicine, 301 Middle Yanchang Road, Shanghai 200072, People's Republic of China
| | - Xiaoling Zhang
- The Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Jiao Tong University School of Medicine (SJTUSM), Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai 200025, People's Republic of China.
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