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Li M, Wu J, Geng W, Yang Y, Li X, Xu K, Li K, Li Y, Duan Q, Gao P, Cai K. Regulation of localized corrosion of 316L stainless steel on osteogenic differentiation of bone morrow derived mesenchymal stem cells. Biomaterials 2023; 301:122262. [PMID: 37542857 DOI: 10.1016/j.biomaterials.2023.122262] [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: 11/30/2022] [Revised: 07/27/2023] [Accepted: 07/28/2023] [Indexed: 08/07/2023]
Abstract
Localized corrosion has become a concerning issue in orthopedic implants as it is associated with peri-implant adverse tissue reactions and implant failure. Here, the pitting corrosion of 316 L stainless steels (316 L SSs) was initiated by electrochemical polarization to simulate the in vivo localized corrosion of orthopedic implants. The effect of localized corrosion on osteogenic differentiation of bone marrow derived mesenchymal stem cells (BMSCs) was systematically studied. The results suggest that pitting corrosion of 316 L SS reduced the viability, adhesion, proliferation, and osteogenic differentiation abilities of BMSCs, especially for the cells around the corrosion pits. The relatively high concentrations of metallic ions such as Cr3+ and Ni2+ released by pitting corrosion could cause cytotoxicity to the BMSCs. The inhomogeneous electrochemical environment resulted from localized corrosion could promote reactive oxygen species (ROS) generation around the corrosion pits and cause oxidative stress of BMSCs. In addition, localized corrosion could also electrochemically interact with the cells and lead to cell membrane depolarization. The depolarized cell membranes and relatively high levels of ROS mediated the degradation of the osteogenic capacity of BMSCs. This work provides new insights into corrosion-mediated cell function degeneration as well as the material-cell interactions.
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Affiliation(s)
- Meng Li
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, PR China
| | - Jing Wu
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, PR China.
| | - Wenbo Geng
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, PR China
| | - Yulu Yang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, PR China
| | - Xuan Li
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, PR China
| | - Kun Xu
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, PR China
| | - Ke Li
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, PR China
| | - Yan Li
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, PR China
| | - Qiaojian Duan
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, PR China
| | - Pengfei Gao
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, PR China
| | - Kaiyong Cai
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, PR China.
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2
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Alam K, Jang W, Jeong G, Park CK, Lee K, Cho H. Design and Development of High-Entropy Alloys with a Tailored Composition and Phase Structure Based on Thermodynamic Parameters and Film Thickness Using a Novel Combinatorial Target. ACS OMEGA 2023; 8:28333-28343. [PMID: 37576658 PMCID: PMC10413475 DOI: 10.1021/acsomega.3c02222] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 07/12/2023] [Indexed: 08/15/2023]
Abstract
This study presents a novel synthesis route for high-entropy alloys (HEAs) and high-entropy metallic glass (HEMG) using radio frequency (RF) magnetron sputtering and controlling the HEA phase selection according to atomic size difference (δ) and film thickness. The preparation of HEAs using sputtering requires either multitargets or the preparation of a target containing at least five distinct elements. In developing HEA-preparation techniques, the emergence of a novel sputtering target system is promising to prepare a wide range of HEAs. A new HEA-preparation technique is developed to avoid multitargets and configure the target elements with the required components in a single target system. Because of a customizable target facility, initially, a TiZrNbMoTaCr target emerged with an amorphous phase owing to a high δ value of 7.6, which was followed by a solid solution (SS) by lowering the δ value to 5 (≤6.6). Thus, this system was tested for the first time to prepare TiZrNbMoTa HEA and TiZrNbMoTa HEMG via RF magnetron sputtering. Both films were analyzed using X-ray diffraction (XRD), X-ray photoelectron spectroscopy, field emission scanning electron microscopy cross-sectional thickness, and atomic force microscopy (AFM). Furthermore, HEMG showed higher hardness 10.3 (±0.17) GPa, modulus 186 (±7) GPa, elastic deformation (0.055) and plastic deformation (0.032 GPa), smooth surface, lower corrosion current density (Icorr), and robust cell viability compared to CP-Ti and HEA. XRD analysis of the film showed SS with a body-centered cubic (BCC) structure with (110) as the preferred orientation. The valence electron concentration [VEC = 4.8 (<6.87)] also confirmed the BCC structure. Furthermore, the morphology of the thin film was analyzed through AFM, revealing a smooth surface for HEMG. Inclusively, the concept of configurational entropy (ΔSmix) is applied and the crystalline phase is achieved at room temperature, optimizing the processing by avoiding further furnace usage.
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Affiliation(s)
- Khurshed Alam
- School
of Materials Science & Engineering, Chonnam National University, Gwangju 61186, Republic of Korea
- Powder
Materials Division, Korea Institute of Materials
Science, 51508 Changwon, South Korea
| | - Woohyung Jang
- Department
of Prosthodontics, School of Dentistry, Chonnam National University, Gwangju 61186, Republic
of Korea
| | - Geonwoo Jeong
- School
of Materials Science & Engineering, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Chul-Kyu Park
- Gachon
Pain Center and Department of Physiology, College of Medicine, Gachon University, Incheon 21999, Republic of Korea
| | - Kwangmin Lee
- School
of Materials Science & Engineering, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Hoonsung Cho
- School
of Materials Science & Engineering, Chonnam National University, Gwangju 61186, Republic of Korea
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3
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Inflammation-triggered dual release of nitroxide radical and growth factor from heparin mimicking hydrogel-tissue composite as cardiovascular implants for anti-coagulation, endothelialization, anti-inflammation, and anti-calcification. Biomaterials 2022; 289:121761. [DOI: 10.1016/j.biomaterials.2022.121761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 08/15/2022] [Accepted: 08/21/2022] [Indexed: 11/20/2022]
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4
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Lewallen EA, Trousdale WH, Thaler R, Yao JJ, Xu W, Denbeigh JM, Nair A, Kocher JP, Dudakovic A, Berry DJ, Cohen RC, Abdel MP, Lewallen DG, van Wijnen AJ. Surface Roughness of Titanium Orthopedic Implants Alters the Biological Phenotype of Human Mesenchymal Stromal Cells. Tissue Eng Part A 2021; 27:1503-1516. [PMID: 33975459 PMCID: PMC8742309 DOI: 10.1089/ten.tea.2020.0369] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 04/05/2021] [Indexed: 11/12/2022] Open
Abstract
Metal orthopedic implants are largely biocompatible and generally achieve long-term structural fixation. However, some orthopedic implants may loosen over time even in the absence of infection. In vivo fixation failure is multifactorial, but the fundamental biological defect is cellular dysfunction at the host-implant interface. Strategies to reduce the risk of short- and long-term loosening include surface modifications, implant metal alloy type, and adjuvant substances such as polymethylmethacrylate cement. Surface modifications (e.g., increased surface rugosity) can increase osseointegration and biological ingrowth of orthopedic implants. However, the localized responses of cells to implant surface modifications need to be better characterized. As an in vitro model for investigating cellular responses to metallic orthopedic implants, we cultured mesenchymal stromal/stem cells on clinical-grade titanium disks (Ti6Al4V) that differed in surface roughness as high (porous structured), medium (grit blasted), and low (bead blasted). Topological characterization of clinically relevant titanium (Ti) materials combined with differential mRNA expression analyses (RNA-seq and real-time quantitative polymerase chain reaction) revealed alterations to the biological phenotype of cells cultured on titanium structures that favor early extracellular matrix production and observable responses to oxidative stress and heavy metal stress. These results provide a descriptive model for the interpretation of cellular responses at the interface between native host tissues and three-dimensionally printed modular orthopedic implants, and will guide future studies aimed at increasing the long-term retention of such materials after total joint arthroplasty. Impact statement Using an in vitro model of implant-to-cell interactions by culturing mesenchymal stromal cells (MSCs) on clinically relevant titanium materials of varying topological roughness, we identified mRNA expression patterns consistent with early extracellular matrix (ECM) production and responses to oxidative/heavy metal stress. Implants with high surface roughness may delay the differentiation and ECM formation of MSCs and alter the expression of genes sensitive to reactive oxygen species and protein kinases. In combination with ongoing animal studies, these results will guide future studies aimed at increasing the long-term retention of widely used titanium materials after total joint arthroplasty.
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Affiliation(s)
- Eric A. Lewallen
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
- Department of Biological Sciences, Hampton University, Hampton, Virginia, USA
| | | | - Roman Thaler
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Jie J. Yao
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
- Department of Orthopaedics and Sports Medicine, University of Washington, Seattle, Washington, USA
| | - Wei Xu
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Janet M. Denbeigh
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Asha Nair
- Division of Biomedical Statistics and Informatics, Department of Health Sciences Research, Mayo Clinic, Rochester, Minnesota, USA
| | - Jean-Pierre Kocher
- Division of Biomedical Statistics and Informatics, Department of Health Sciences Research, Mayo Clinic, Rochester, Minnesota, USA
| | - Amel Dudakovic
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Daniel J. Berry
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Robert C. Cohen
- Digital, Robotics, and Enabling Technologies, Stryker Orthopedics, Mahwah, New Jersey, USA
| | - Matthew P. Abdel
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - David G. Lewallen
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
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Prestat M, Thierry D. Corrosion of titanium under simulated inflammation conditions: clinical context and in vitro investigations. Acta Biomater 2021; 136:72-87. [PMID: 34626820 DOI: 10.1016/j.actbio.2021.10.002] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/15/2021] [Accepted: 10/01/2021] [Indexed: 01/01/2023]
Abstract
Titanium and alloys thereof are widely utilized for biomedical applications in the fields of orthopedics and dentistry. The corrosion resistance and perceived biocompatibility of such materials are essentially related to the presence of a thin passive oxide layer on the surface. However, during inflammation phases, the immune system and its leukocytic cells generate highly aggressive molecules, such as hydrogen peroxide and radicals, that can significantly alter the passive film resulting in the degradation of the titanium implants. In combination with mechanical factors, this can lead to the release of metal ions, nanoparticles or microscaled debris in the surrounding tissues (which may sustain chronic inflammation), bring about relevant health issues and contribute to implant loss or failure. After briefly presenting the context of inflammation, this review article analyses the state-of-the-art knowledge of the in vitro corrosion of titanium, titanium alloys and coated titanium by reactive oxygen species and by living cells with an emphasis on electrochemical and microstructural aspects. STATEMENT OF SIGNIFICANCE: Inflammation involves the production of reactive oxygen species that are known to alter the passive layer protecting titanium implants against the aggressive environment of the human body. Inflammatory processes therefore contribute to the deterioration of biomedical devices. Although review articles on biomaterials for implant applications are regularly published in the literature, none has ever focused specifically on the topic of inflammation. After briefly recalling the clinical context, this review analyses the in vitro studies on titanium corrosion under simulated inflammation conditions from the pioneer works of the 80s and the 90s till the most recent investigations. It reports about the status of this research area for a multidisciplinary readership covering the fields of materials science, corrosion and implantology.
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Affiliation(s)
- M Prestat
- French Corrosion Institute - RISE, 220 rue Pierre Rivoalon, 29200 Brest, France.
| | - D Thierry
- French Corrosion Institute - RISE, 220 rue Pierre Rivoalon, 29200 Brest, France; Research Institutes of Sweden (RISE), Stockholm, Sweden
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6
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Yeo EJ, Shin MJ, Yeo HJ, Choi YJ, Sohn EJ, Lee LR, Kwon HJ, Cha HJ, Lee SH, Lee S, Yu YH, Kim DS, Kim DW, Park J, Han KH, Eum WS, Choi SY. Tat-thioredoxin 1 reduces inflammation by inhibiting pro-inflammatory cytokines and modulating MAPK signaling. Exp Ther Med 2021; 22:1395. [PMID: 34650643 DOI: 10.3892/etm.2021.10831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 04/29/2021] [Indexed: 10/20/2022] Open
Abstract
Thioredoxin 1 (Trx1) serves a central role in redox homeostasis. It is involved in numerous other processes, including oxidative stress and apoptosis. However, to the best of our knowledge, the role of Trx1 in inflammation remains to be explored. The present study investigated the function and mechanism of cell permeable fused Tat-Trx1 protein in macrophages and a mouse model. Transduction levels of Tat-Trx1 were determined via western blotting. Cellular distribution of transduced Tat-Trx1 was determined by fluorescence microscopy. 2',7'-Dichlorofluorescein diacetate and TUNEL staining were performed to determine the production of reactive oxygen species and DNA fragmentation. Protein and gene expression were measured by western blotting and reverse transcription-quantitative PCR (RT-qPCR), respectively. Effects of skin inflammation were determined using hematoxylin and eosin staining, changes in ear weight and ear thickness, and RT-qPCR in ear edema animal models. Transduced Tat-Trx1 inhibited lipopolysaccharide-induced cytotoxicity and activation of NF-κB, MAPK and Akt. Additionally, Tat-Trx1 markedly reduced the production of inducible nitric oxide synthase, cyclooxygenase-2, IL-1β, IL-6 and TNF-α in macrophages. In a 12-O-tetradecanoylphorbol-13-acetate-induced mouse model, Tat-Trx1 reduced inflammatory damage by inhibiting inflammatory mediator and cytokine production. Collectively, these results demonstrated that Tat-Trx1 could exert anti-inflammatory effects by inhibiting the production of pro-inflammatory mediators and cytokines and by modulating MAPK signaling. Therefore, Tat-Trx1 may be a useful therapeutic agent for diseases induced by inflammatory damage.
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Affiliation(s)
- Eun Ji Yeo
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon 24252, Republic of Korea
| | - Min Jea Shin
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon 24252, Republic of Korea
| | - Hyeon Ji Yeo
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon 24252, Republic of Korea
| | - Yeon Joo Choi
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon 24252, Republic of Korea
| | - Eun Jeong Sohn
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon 24252, Republic of Korea
| | - Lee Re Lee
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon 24252, Republic of Korea
| | - Hyun Jung Kwon
- Department of Biochemistry and Molecular Biology, Research Institute of Oral Sciences, College of Dentistry, Gangneung-Wonju National University, Gangneung, Gangwon 25457, Republic of Korea
| | - Hyun Ju Cha
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon 24252, Republic of Korea
| | - Sung Ho Lee
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon 24252, Republic of Korea.,Genesen Inc., Seoul 06181, Republic of Korea
| | - Sunghou Lee
- Department of Green Chemical Engineering, Sangmyung University, Cheonan, Chungcheongnam 31066, Republic of Korea
| | - Yeon Hee Yu
- Department of Anatomy and BK21 FOUR Project, College of Medicine, Soonchunhyang University, Cheonan, Chungcheongnam 31538, Republic of Korea
| | - Duk-Soo Kim
- Department of Anatomy and BK21 FOUR Project, College of Medicine, Soonchunhyang University, Cheonan, Chungcheongnam 31538, Republic of Korea
| | - Dae Won Kim
- Department of Biochemistry and Molecular Biology, Research Institute of Oral Sciences, College of Dentistry, Gangneung-Wonju National University, Gangneung, Gangwon 25457, Republic of Korea
| | - Jinseu Park
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon 24252, Republic of Korea
| | - Kyu Hyung Han
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon 24252, Republic of Korea
| | - Won Sik Eum
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon 24252, Republic of Korea
| | - Soo Young Choi
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon 24252, Republic of Korea
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Abstract
AbstractThe success of implant performance and arthroplasty is based on several factors, including oxidative stress-induced osteolysis. Oxidative stress is a key factor of the inflammatory response. Implant biomaterials can release wear particles which may elicit adverse reactions in patients, such as local inflammatory response leading to tissue damage, which eventually results in loosening of the implant. Wear debris undergo phagocytosis by macrophages, inducing a low-grade chronic inflammation and reactive oxygen species (ROS) production. In addition, ROS can also be directly produced by prosthetic biomaterial oxidation. Overall, ROS amplify the inflammatory response and stimulate both RANKL-induced osteoclastogenesis and osteoblast apoptosis, resulting in bone resorption, leading to periprosthetic osteolysis. Therefore, a growing understanding of the mechanism of oxidative stress-induced periprosthetic osteolysis and anti-oxidant strategies of implant design as well as the addition of anti-oxidant agents will help to improve implants’ performances and therapeutic approaches.
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Ma XY, Ma TC, Feng YF, Xiang G, Lei W, Zhou DP, Yu HL, Xiang LB, Wang L. Promotion of osteointegration by silk fibroin coating under diabetic conditions on 3D printed porous titanium implants via ROS-mediated NF-κB pathway. Biomed Mater 2020; 16. [PMID: 32726758 DOI: 10.1088/1748-605x/abaaa1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Accepted: 07/29/2020] [Indexed: 01/29/2023]
Abstract
The clinical evidence indicates the compromised application of titanium implants (TI) in diabetics, associated with reactive oxygen species (ROS) overproduction at the bone-implant interface. Silk fibroin has exerted impressive biocompatibility in application of biomedical material and optimal anti-diabetic effect as oriental medicine. We proposed that SF coated titanium implant (STI) could alleviate diabetes-induced compromised osteointegration, which had been rarely reported before. To confirm the hypothesis and explore the underlying mechanisms, rat osteoblasts cultured on 3-dimensional (3D) printed TI and STI were subjected to normal serum (NS), diabetic serum (DS), DS with NAC (a ROS inhibitor) or SN50 (a NF-κB inhibitor). In vivo study was performed on diabetic sheep implanted with TI or STI into the bone defect on crista iliaca. Results demonstrated that ROS overproduction induced by diabetes lead to osteoblast dysfunctions and cellular apoptosis on TI substrate, associated with activation of NF-κB signaling pathway in osteoblasts. Importantly, STI substrate significantly attenuated ROS production and NF-κBp65 phosphorylation, through which the osteoblast biological dysfunctions were ameliorated. These results were further confirmed in vivo by the improved osteointegration of STI evidenced by Micro-CT and histological examinations compared with TI. These results demonstrated that ROS-mediated NF-κB signaling pathway played a crucial role in diabetes-induced implant destabilization. Importantly, SF coating as a promising material for biomaterial-engineering markedly improved clinical treatment effect of TI under diabetic conditions, possibly associated with the suppression of NF-κB pathway.
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Affiliation(s)
- Xiang-Yu Ma
- General Hospital of Northern Theater Command of PLA, Shenyang, CHINA
| | - Tian-Cheng Ma
- The First Affiliated Hospital of Air Force Medical University, Xi'an, CHINA
| | - Ya-Fei Feng
- The First Affiliated Hospital of Air Force Medical University, Xi'an, CHINA
| | - Geng Xiang
- The First Affiliated Hospital of Air Force Medical University, Xi'an, CHINA
| | - Wei Lei
- The First Affiliated Hospital of Air Force Medical University, Xi'an, CHINA
| | - Da-Peng Zhou
- General Hospital of Northern Theater Command of PLA, Shenyang, CHINA
| | - Hai-Long Yu
- General Hospital of Northern Theater Command of PLA, Shenyang, CHINA
| | - Liang-Bi Xiang
- Department of Orthopedics, General Hospital of Northern Theater Command of PLA, Shenyang, Liaoning, CHINA
| | - Lin Wang
- The First Affiliated Hospital of Air Force Medical University, Xi'an, CHINA
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9
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Zhou H, Chen D, Xie G, Li J, Tang J, Tang L. LncRNA-mediated ceRNA network was identified as a crucial determinant of differential effects in periodontitis and periimplantitis by high-throughput sequencing. Clin Implant Dent Relat Res 2020; 22:424-450. [PMID: 32319195 DOI: 10.1111/cid.12911] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Revised: 02/28/2020] [Accepted: 03/26/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND OBJECTIVE Although periimplantitis and periodontitis share similar features, particularly clinical features, they are two different diseases and should be analyzed separately. Thus far, few omics-level differences in periimplantitis and periodontitis have been reported. This study was aimed at exploring the differential effects of expression mRNAs, lncRNAs, and miRNAs in periodontitis and periimplantitis by high-throughput sequencing and competitive endogenous RNA (ceRNA) analysis. METHODS Gingival tissues of healthy individuals (HI) and periimplantitis (PI) and periodontitis (P) patients were collected and used for genome-wide sequencing. The differentially expressed genes (DEGs) were screened and visualized by R software. The functions and pathways of DEGs were analyzed using Metascape, and the ceRNA network was constructed using the Cytoscape software. Finally, gene set enrichment analysis (GSEA) was used to predict the function of key nodes in ceRNA. RESULTS AND CONCLUSION By constructing the regulated ceRNA network, six genes (FAM126B, SORL1, PRLR, CPEB2, RAP2C, and YOD1) and 16 miRNAs (hsa-miR-338-5p, hsa-miR-650, hsa-miR-9-5p, hsa-miR-1290, hsa-miR-544a, hsa-miR-3179, hsa-miR-1269a, hsa-miR-3679-5p, hsa-miR-149-5p, hsa-miR-615-3p, hsa-miR-33b-5p, hsa-miR-31-5p, hsa-miR-4639-5p, hsa-miR-204-5p, hsa-miR-5588-5p, and hsa-mir-196a-5p) were detected. Five long non-coding RNAs (lnc-CORO2B-1, lnc-MBL2-7, lnc-TRIM45-1, lnc-CHST10-2, and lnc-TNP1-6) were found to target these miRNAs in this ceRNA network. The ceRNA network based on transcriptome data revealed that FAM126B, SORL1, PRLR, CPEB2, RAP2C, and YOD1 were crucial proteins of differential effects in periodontitis and periimplantitis. The lncRNA-miRNA-mRNA interaction involved the regulation of the Hippo signaling pathway, Wnt signaling pathway, Toll-like receptor signaling pathway, NOD signaling pathway, oxidative stress, and innate immune process. These regulated pathways and biological processes may be factors contributing to the pathogenesis of periimplantitis being distinct from that of periodontitis.
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Affiliation(s)
- Hailun Zhou
- Department of Implant Dentistry, Stomatology Hospital, Guangxi Medical University, Nanning, China.,Guangxi Key Laboratory of the Rehabilitation and Reconstruction of Oral and Maxillofacial Research, Nanning, China.,Guangxi Colleges and Universities Key Laboratory of Treatment and Research for Oral and Maxillofacial Surgery Disease, Nanning, China.,Guangxi Clinical Research Center for Craniofacial Deformity, Nanning, China
| | - Donghui Chen
- Guangxi Key Laboratory of the Rehabilitation and Reconstruction of Oral and Maxillofacial Research, Nanning, China.,Guangxi Colleges and Universities Key Laboratory of Treatment and Research for Oral and Maxillofacial Surgery Disease, Nanning, China.,Guangxi Clinical Research Center for Craniofacial Deformity, Nanning, China.,Department of Periodontology, Stomatology Hospital, Guangxi Medical University, Nanning, Guangxi, China
| | - Guifang Xie
- Department of Prosthodontics, Affiliated Stomatology Hospital of Guilin Medical College, Guilin, China
| | - Jiaojie Li
- Department of Implant Dentistry, Stomatology Hospital, Guangxi Medical University, Nanning, China.,Guangxi Key Laboratory of the Rehabilitation and Reconstruction of Oral and Maxillofacial Research, Nanning, China.,Guangxi Colleges and Universities Key Laboratory of Treatment and Research for Oral and Maxillofacial Surgery Disease, Nanning, China.,Guangxi Clinical Research Center for Craniofacial Deformity, Nanning, China
| | - Jianjia Tang
- Department of Implant Dentistry, Stomatology Hospital, Guangxi Medical University, Nanning, China.,Guangxi Key Laboratory of the Rehabilitation and Reconstruction of Oral and Maxillofacial Research, Nanning, China.,Guangxi Colleges and Universities Key Laboratory of Treatment and Research for Oral and Maxillofacial Surgery Disease, Nanning, China.,Guangxi Clinical Research Center for Craniofacial Deformity, Nanning, China
| | - Li Tang
- Department of Implant Dentistry, Stomatology Hospital, Guangxi Medical University, Nanning, China.,Guangxi Key Laboratory of the Rehabilitation and Reconstruction of Oral and Maxillofacial Research, Nanning, China.,Guangxi Colleges and Universities Key Laboratory of Treatment and Research for Oral and Maxillofacial Surgery Disease, Nanning, China.,Guangxi Clinical Research Center for Craniofacial Deformity, Nanning, China
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10
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Shin MJ, Kim DW, Choi YJ, Cha HJ, Lee SH, Lee S, Park J, Han KH, Eum WS, Choi SY. PEP-1-GLRX1 Protein Exhibits Anti-Inflammatory Effects by Inhibiting the Activation of MAPK and NF-κB Pathways in Raw 264.7 Cells. BMB Rep 2020. [PMID: 31964467 PMCID: PMC7061214 DOI: 10.5483/bmbrep.2020.53.2.180] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Glutaredoxin 1 (GLRX1) has been recognized as an important regulator of redox signaling. Although GLRX1 plays an essential role in cell survival as an antioxidant protein, the function of GLRX1 protein in inflammatory response is still under investigation. Therefore, we wanted to know whether transduced PEP-1-GLRX1 protein inhibits lipopolysaccharide (LPS)- and 12-O-tetradecanoyl phorbol-13-acetate (TPA)-induced inflammation. In LPS-exposed Raw 264.7 cells, PEP-1-GLRX1 inhibited cyclooxygenase-2 (COX-2), inducible nitric oxide synthase (iNOS), activation of mitogen activated protein kinases (MAPKs) and nuclear factor-kappaB (NF-βB) expression levels. In a TPA-induced mouse-ear edema model, topically applied PEP-1-GLRX1 transduced into ear tissues and significantly ameliorated ear edema. Our data reveal that PEP-1-GLRX1 attenuates inflammation in vitro and in vivo, suggesting that PEP-1-GLRX1 may be a potential therapeutic protein for inflammatory diseases.
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Affiliation(s)
- Min Jea Shin
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, Korea
| | - Dae Won Kim
- Department of Biochemistry and Molecular Biology, Research Institute of Oral Sciences, College of Dentistry, Gangneung-Wonju National University, Gangneung 25457, Korea
| | - Yeon Joo Choi
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, Korea
| | - Hyun Ju Cha
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, Korea
| | - Sung Ho Lee
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, Korea
- Genesen Inc., Seoul 06181, Korea
| | - Sunghou Lee
- Department of Green Chemical Engineering, Sangmyung University, Cheonan 31066, Korea
| | - Jinseu Park
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, Korea
| | - Kyu Hyung Han
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, Korea
| | - Won Sik Eum
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, Korea
| | - Soo Young Choi
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, Korea
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11
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Hameister R, Kaur C, Dheen ST, Lohmann CH, Singh G. Reactive oxygen/nitrogen species (ROS/RNS) and oxidative stress in arthroplasty. J Biomed Mater Res B Appl Biomater 2020; 108:2073-2087. [PMID: 31898397 DOI: 10.1002/jbm.b.34546] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 11/19/2019] [Accepted: 12/08/2019] [Indexed: 12/16/2022]
Abstract
The interplay between implant design, biomaterial characteristics, and the local microenvironment adjacent to the implant is of utmost importance for implant performance and success of the joint replacement surgery. Reactive oxygen and nitrogen species (ROS/RNS) are among the various factors affecting the host as well as the implant components. Excessive formation of ROS and RNS can lead to oxidative stress, a condition that is known to damage cells and tissues and also to affect signaling pathways. It may further compromise implant longevity by accelerating implant degradation, primarily through activation of inflammatory cells. In addition, wear products of metallic, ceramic, polyethylene, or bone cement origin may also generate oxidative stress themselves. This review outlines the generation of free radicals and oxidative stress in arthroplasty and provides a conceptual framework on its implications for soft tissue remodeling and bone resorption (osteolysis) as well as implant longevity. Key findings derived from cell culture studies, animal models, and patients' samples are presented. Strategies to control oxidative stress by implant design and antioxidants are explored and areas of controversy and challenges are highlighted. Finally, directions for future research are identified. A better understanding of the host-implant interplay and the role of free radicals and oxidative stress will help to evaluate therapeutic approaches and will ultimately improve implant performance in arthroplasty.
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Affiliation(s)
- Rita Hameister
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Charanjit Kaur
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Shaikali Thameem Dheen
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Christoph H Lohmann
- Department of Orthopaedic Surgery, Otto-von-Guericke University, Magdeburg, Germany
| | - Gurpal Singh
- Centre for Orthopaedics Pte Ltd, Singapore, Singapore
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12
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Xu H, Hu T, Wang M, Zheng Y, Qin H, Cao H, An Z. Degradability and biocompatibility of magnesium-MAO: The consistency and contradiction between in-vitro and in-vivo outcomes. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2018.07.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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13
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Scarcello E, Lison D. Are Fe-Based Stenting Materials Biocompatible? A Critical Review of In Vitro and In Vivo Studies. J Funct Biomater 2019; 11:jfb11010002. [PMID: 31877701 PMCID: PMC7151573 DOI: 10.3390/jfb11010002] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 12/18/2019] [Accepted: 12/19/2019] [Indexed: 02/06/2023] Open
Abstract
Fe-based materials have increasingly been considered for the development of biodegradable cardiovascular stents. A wide range of in vitro and in vivo studies should be done to fully evaluate their biocompatibility. In this review, we summarized and analyzed the findings and the methodologies used to assess the biocompatibility of Fe materials. The majority of investigators drew conclusions about in vitro Fe toxicity based on indirect contact results. The setup applied in these tests seems to overlook the possible effects of Fe corrosion and does not allow for understanding of the complexity of released chemical forms and their possible impact on tissue. It is in particular important to ensure that test setups or interpretations of in vitro results do not hide some important mechanisms, leading to inappropriate subsequent in vivo experiments. On the other hand, the sample size of existing in vivo implantations is often limited, and effects such as local toxicity or endothelial function are not deeply scrutinized. The main advantages and limitations of in vitro design strategies applied in the development of Fe-based alloys and the correlation with in vivo studies are discussed. It is evident from this literature review that we are not yet ready to define an Fe-based material as safe or biocompatible.
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14
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Enhanced corrosion resistance of zinc-containing nanowires-modified titanium surface under exposure to oxidizing microenvironment. J Nanobiotechnology 2019; 17:55. [PMID: 30992009 PMCID: PMC6466780 DOI: 10.1186/s12951-019-0488-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 04/09/2019] [Indexed: 12/19/2022] Open
Abstract
Titanium (Ti) and its alloys as bio-implants have excellent biocompatibilities and osteogenic properties after modification of chemical composition and topography via various methods. The corrosion resistance of these modified materials is of great importance for changing oral system, while few researches have reported this point. Recently, oxidative corrosion induced by cellular metabolites has been well concerned. In this study, we explored the corrosion behaviors of four common materials (commercially pure Ti, cp-Ti; Sandblasting and acid etching-modified Ti, Ti-SLA; nanowires-modified Ti, Ti-NW; and zinc-containing nanowires-modified Ti, Ti-NW-Zn) with excellent biocompatibilities and osteogenic capacities under the macrophages induced-oxidizing microenvironment. The results showed that the materials immersed into a high oxidizing environment were more vulnerable to corrode. Meanwhile, different surfaces also showed various corrosion susceptibilities under oxidizing condition. Samples embed with zinc element exhibited more excellent corrosion resistance compared with other three surfaces exposure to excessive H2O2. Besides, we found that zinc-decorated Ti surfaces inhibited the adhesion and proliferation of macrophages on its surface and induced the M2 states of macrophages to better healing and tissue reconstruction. Most importantly, zinc-decorated Ti surfaces markedly increased the expressions of antioxidant enzyme relative genes in macrophages. It improved the oxidation microenvironment around the materials and further protected their properties. In summary, our results demonstrated that Ti-NW-Zn surfaces not only provided excellent corrosion resistance properties, but also inhibited the adhesion of macrophages. These aspects were necessary for maintaining osseointegration capacity and enhancing the corrosion resistance of Ti in numerous medical applications, particularly in dentistry.
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15
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Zhang Y, Li C, Zhou C, Hong P, Zhang Y, Sun S, Qian ZJ. 2'-Hydroxy-5'-methoxyacetophenone attenuates the inflammatory response in LPS-induced BV-2 and RAW264.7 cells via NF-κB signaling pathway. J Neuroimmunol 2019; 330:143-151. [PMID: 30884275 DOI: 10.1016/j.jneuroim.2019.03.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 03/11/2019] [Accepted: 03/11/2019] [Indexed: 02/07/2023]
Abstract
Seahorse has been used as a traditional medicine in Southeast Asian countries for a long time. A compound, 2'-Hydroxy-5'-Methoxyacetophenone (2H5M) isolated from seahorse, Hippocampus kuda, was tested for its anti-inflammatory effect in lipopolysaccharides (LPS)-stimulated BV-2 cells and RAW264.7 cells. MTT assay indicated that 2H5M has no cytotoxicity on two kinds of cells. The concentration of nitric oxide (NO) measured by Griess Reaction System showed that 2H5M could significantly inhibit the NO concentration. The ELISA results showed that 2H5M could suppress the secretion of TNF-α in a dose-dependent manner. Moreover, western blot analysis was utilized to measure the protein levels of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2), mitogen-activated protein kinase (MAPK) and nuclear factor-kappa B (NF-κB) signaling pathways. Electrophoretic mobility shift assay (EMSA) demonstrated that 2H5M reduced NF-κB DNA binding activity. Furthermore, the molecular docking study showed that 2H5M can form active sites with NF-κB. Collectively, these results indicated that 2H5M possesses anti-inflammatory effects and may have a potential application in inflammatory disorders in the future.
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Affiliation(s)
- YuanYuan Zhang
- School of Chemistry and Environment of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China; College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
| | - ChengYong Li
- School of Chemistry and Environment of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China; Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China
| | - ChunXia Zhou
- College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China; Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China
| | - PengZhi Hong
- College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
| | - Yi Zhang
- College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
| | - ShengLi Sun
- School of Chemistry and Environment of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China
| | - Zhong-Ji Qian
- School of Chemistry and Environment of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China; Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China.
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16
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Wiegand MJ, Kubacki GW, Gilbert JL. Electrochemical potential zone of viability on CoCrMo surfaces is affected by cell type: Macrophages under cathodic bias are more resistant to killing. J Biomed Mater Res A 2018; 107:526-534. [DOI: 10.1002/jbm.a.36567] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 09/20/2018] [Accepted: 09/28/2018] [Indexed: 12/22/2022]
Affiliation(s)
- Michael J. Wiegand
- Department of Biomedical and Chemical Engineering; Syracuse University; Syracuse New York
- Syracuse Biomaterials Institute, Syracuse University; Syracuse New York
| | - Gregory W. Kubacki
- Department of Biomedical and Chemical Engineering; Syracuse University; Syracuse New York
- Syracuse Biomaterials Institute, Syracuse University; Syracuse New York
| | - Jeremy L. Gilbert
- Department of Biomedical and Chemical Engineering; Syracuse University; Syracuse New York
- Syracuse Biomaterials Institute, Syracuse University; Syracuse New York
- Department of Bioengineering; Clemson University; Clemson South Carolina
- Clemson University-Medical University of South Carolina Program in Bioengineering; Charleston South Carolina
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17
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Saleem A, Khadija G, Akhtar Z, Mumtaz S, Rukhsar S, Rafiq M, Rubab M, Zahra GE, Naseer I, Ibrahim A, Iqbal F. Short-term exposure to titanium, aluminum and niobium (Ti-6Al-4Nb) alloy powder can disturb the serum low-density lipoprotein concentrations and antioxidant profile in vital organs but not the behavior of male albino mice. Drug Chem Toxicol 2018; 43:298-306. [PMID: 30449194 DOI: 10.1080/01480545.2018.1525394] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A group of seven-week-old albino mice of both genders were orally administered with a suspension of 25 mg Ti-6Al-4Nb/ml of saline/kg body weight and evaluated in comparison with a control group of animals treated with saline. Evaluation of both the groups was conducted through behavioral tests (Rota rod, open field, novel object and light dark box test), blood biochemical tests [complete blood count and selected serum parameters ([cholesterol, high-density lipoproteins, low-density lipoproteins, creatinine and triglycerides)] and on the basis of measured concentration of antioxidant metabolites (superoxide dismutase, catalase and lipid peroxidation) in vital organs (brain, heart, liver, kidney and lungs). Based upon the results of these tests, it has been found that the applied dose of Ti-6Al-4Nb alloy powder has not effect on physical and neurological outcome of these animals. However, it can increase low-density lipoprotein concentrations as well as disturb the H2O2 and lipid peroxidation associated metabolic pathways, especially in male albino mice. Whereas all other hematological indices and antioxidative stress parameters were unaffected.
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Affiliation(s)
- Ayisha Saleem
- Institute of Advanced Materials, Bahauddin Zakariya University, Multan, Pakistan
| | - Ghulam Khadija
- Institute of Pure and Applied Biology, Zoology Division, Bahauddin Zakariya University, Multan, Pakistan
| | - Zafrin Akhtar
- Institute of Pure and Applied Biology, Zoology Division, Bahauddin Zakariya University, Multan, Pakistan
| | - Sadia Mumtaz
- Institute of Pure and Applied Biology, Zoology Division, Bahauddin Zakariya University, Multan, Pakistan
| | - Sana Rukhsar
- Institute of Pure and Applied Biology, Zoology Division, Bahauddin Zakariya University, Multan, Pakistan
| | - Mussarat Rafiq
- Institute of Pure and Applied Biology, Zoology Division, Bahauddin Zakariya University, Multan, Pakistan
| | - Manam Rubab
- Institute of Pure and Applied Biology, Zoology Division, Bahauddin Zakariya University, Multan, Pakistan
| | - Gull E Zahra
- Institute of Pure and Applied Biology, Zoology Division, Bahauddin Zakariya University, Multan, Pakistan
| | - Iram Naseer
- Institute of Pure and Applied Biology, Zoology Division, Bahauddin Zakariya University, Multan, Pakistan
| | - Ather Ibrahim
- Institute of Advanced Materials, Bahauddin Zakariya University, Multan, Pakistan
| | - Furhan Iqbal
- Institute of Pure and Applied Biology, Zoology Division, Bahauddin Zakariya University, Multan, Pakistan
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18
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Peng KT, Tsai MH, Lee CW, Chiang YC, Chen PC, Chen CC, Chang CH, Shih HN, Chang PJ. Dysregulated expression of antioxidant enzymes in polyethylene particle-induced periprosthetic inflammation and osteolysis. PLoS One 2018; 13:e0202501. [PMID: 30125327 PMCID: PMC6101395 DOI: 10.1371/journal.pone.0202501] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 08/03/2018] [Indexed: 01/01/2023] Open
Abstract
Small wear particles (0.1–10 μm) in total joint replacement are generally considered as the major causative agent leading to periprosthetic inflammation and osteolysis. However, little is known about the roles of larger wear particles (10–100 μm) in periprosthetic inflammation and osteolysis. Additionally, although ample studies demonstrated that increased oxidative stress is critically involved in particle-induced inflammation and osteolysis, detailed changes in antioxidant enzymes expression in the disease development remain largely unclear. Herein, we used a rat knee prosthesis model to assess effects of polyethylene (PE) particles (20–60 μm) on the levels of oxidative stress markers such as malondialdehyde (MDA) and total antioxidant capacity (TAC) in blood plasma, and on the expression profiles of antioxidant enzymes in knee joint tissues. In combination with a forced-exercise intervention for all surgical rats, we found that the rat groups treated with both artificial joint and PE particles exhibited higher MDA levels and lower TAC levels, together with lower levels of physical activity and higher levels of inflammatory markers, than the sham group and the groups receiving artificial joint or PE particles alone at weeks 20–24 post-operatively. Dose-response relationships between the exposure to PE particles and the induction of oxidative stress and inflammation were also observed in the artificial joint/PE groups. Under such conditions, we unexpectedly found that most of antioxidant enzymes displayed pronounced up-regulation, with concomitant induction of inflammatory and osteoclast-inducing factors (including IL-1β, NF-κB and RANKL), in the artificial joint/PE groups as compared to the sham, artificial joint only, or PE only group. Only a few antioxidant enzymes including SOD2 and GPx2 showed down-regulation. Collectively, our findings demonstrate that implantation of artificial joint along with large PE particles synergistically trigger the induction of oxidative stress; however, down-regulation of many antioxidant enzymes may not necessarily occur during the disease development.
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Affiliation(s)
- Kuo-Ti Peng
- Department of Orthopedic Surgery, Chang Gung Memorial Hospital, Chiayi, Taiwan
- College of Medicine, Chang-Gung University, Taoyuan, Taiwan
| | - Meng-Hsueh Tsai
- Department of Orthopedic Surgery, Chang Gung Memorial Hospital, Chiayi, Taiwan
| | - Chiang-Wen Lee
- Division of Basic Medical Sciences, Department of Nursing, and Chronic Diseases and Health Promotion Research Center, Chang Gung Institute of Technology, Chiayi, Taiwan
| | - Yao-Chang Chiang
- Center for Drug Abuse and Addiction, China Medical University Hospital, Taichung, Taiwan
| | - Pei-Chun Chen
- Department of Orthopedic Surgery, Chang Gung Memorial Hospital, Chiayi, Taiwan
| | - Chun-Chieh Chen
- Department of Orthopedic Surgery, Chang Gung Memorial Hospital, Linkou, Taiwan
| | - Chih-Hsiang Chang
- Department of Orthopedic Surgery, Chang Gung Memorial Hospital, Linkou, Taiwan
| | - Hsin-Nung Shih
- Department of Orthopedic Surgery, Chang Gung Memorial Hospital, Linkou, Taiwan
- * E-mail: (PJC); (HNS)
| | - Pey-Jium Chang
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang-Gung University, Taoyuan, Taiwan
- Department of Nephrology, Chang-Gung Memorial Hospital, Chiayi, Taiwan
- * E-mail: (PJC); (HNS)
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19
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20
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Khadija G, Saleem A, Akhtar Z, Naqvi Z, Gull M, Masood M, Mukhtar S, Batool M, Saleem N, Rasheed T, Nizam N, Ibrahim A, Iqbal F. Short term exposure to titanium, aluminum and vanadium (Ti 6Al 4V) alloy powder drastically affects behavior and antioxidant metabolites in vital organs of male albino mice. Toxicol Rep 2018; 5:765-770. [PMID: 29984190 PMCID: PMC6031284 DOI: 10.1016/j.toxrep.2018.06.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 05/03/2018] [Accepted: 06/11/2018] [Indexed: 11/30/2022] Open
Abstract
Body weight, complete blood count and studied serum parameters remained unaffected upon Ti 6 A l 4 V alloy powder exposure. Short tern exposure to Ti 6Al 4V powder drastically affected neuromuscular coordination in male mice during rota rod test. Reduced novel object recognition ability in female mice exposed to Ti 6Al 4V alloy powder. Disturbed antioxidant metabolites in vital organs of mice treated with Ti 6Al 4V alloy powder.
Titanium, Aluminum and Vanadium (Ti 6Al 4V) alloy are frequently used as surgical implant but regarding their compatibility in living systems is limited. Ti 6Al 4V was prepared from high purity constituents and Ti 6Al 4V alloy powder (25 mg/ml solvent/Kg body weight) was gavaged to albino mice for 8 days. A saline treated control group was maintained in parallel. A series of behavioral (rota rod, light and dark box, open field and novel object) test performance, complete blood count, selected serum (HDL cholesterol, LDL cholesterol, creatinine, cholesterol and triglycerides) parameters, antioxidant metabolites from vital organs (superoxide dismutase, catalase and lipid peroxidation) from vital organs and body weight were determined in both treatments. It was observed that rota rod test performance in male (P = 0.05) and novel object recognition capability in female mice (P = 0.04) were significantly reduced as compared to their respective control groups. Body weight, complete blood count and studied serum parameters remained unaffected when compared between two treatments of both genders. Concentration of superoxide dismutase in liver (P = 0.008), heart (P = 0.01) and lungs (P = 0.05) was significantly elevated while catalase concentration in liver (P = 0.001) was significantly decreased in female albino mice that were exposed to 25 mg/ml solvent/kg body weight of Ti 6 A l 4 V alloy powder. In case of male albino mice, superoxide dismutase concentration in lungs was reduced (P = 0.05) in mice exposed to Ti 6 A l 4 V alloy powder. In conclusion, our results indicated that short term exposure to 25 mg/ml solvent/Kg body weight of Ti-6Al-4V alloy powder supplementation had adversely affected selected aspects of behavior of albino mice in a gender specific manner. Analysis of antioxidant parameters in vital organs has demonstrated that the applied dose of Ti-6Al-4V alloy powder can disturb the H₂O₂ associated metabolic pathways in albino mice, especially in female mice. As this alloy is part of surgical implants, so we recommend that their effects in living systems must be extensively explored under variable dose and exposure time conditions to know more about their biocompatibility.
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Affiliation(s)
- Ghulam Khadija
- Zoology Division, Institute of Pure and Applied Biology, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Ayisha Saleem
- Institute of Advanced Materials, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Zafrin Akhtar
- Zoology Division, Institute of Pure and Applied Biology, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Zahra Naqvi
- Zoology Division, Institute of Pure and Applied Biology, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Maham Gull
- Zoology Division, Institute of Pure and Applied Biology, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Mahnoor Masood
- Zoology Division, Institute of Pure and Applied Biology, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Sana Mukhtar
- Zoology Division, Institute of Pure and Applied Biology, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Momna Batool
- Zoology Division, Institute of Pure and Applied Biology, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Nida Saleem
- Zoology Division, Institute of Pure and Applied Biology, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Tahir Rasheed
- Zoology Division, Institute of Pure and Applied Biology, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Naira Nizam
- Zoology Division, Institute of Pure and Applied Biology, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Ather Ibrahim
- Zoology Division, Institute of Pure and Applied Biology, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Furhan Iqbal
- Institute of Advanced Materials, Bahauddin Zakariya University, Multan, 60800, Pakistan
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21
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Groppa E, Brkic S, Uccelli A, Wirth G, Korpisalo-Pirinen P, Filippova M, Dasen B, Sacchi V, Muraro MG, Trani M, Reginato S, Gianni-Barrera R, Ylä-Herttuala S, Banfi A. EphrinB2/EphB4 signaling regulates non-sprouting angiogenesis by VEGF. EMBO Rep 2018; 19:embr.201745054. [PMID: 29643120 PMCID: PMC5934775 DOI: 10.15252/embr.201745054] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 03/03/2018] [Accepted: 03/08/2018] [Indexed: 12/17/2022] Open
Abstract
Vascular endothelial growth factor (VEGF) is the master regulator of angiogenesis, whose best-understood mechanism is sprouting. However, therapeutic VEGF delivery to ischemic muscle induces angiogenesis by the alternative process of intussusception, or vascular splitting, whose molecular regulation is essentially unknown. Here, we identify ephrinB2/EphB4 signaling as a key regulator of intussusceptive angiogenesis and its outcome under therapeutically relevant conditions. EphB4 signaling fine-tunes the degree of endothelial proliferation induced by specific VEGF doses during the initial stage of circumferential enlargement of vessels, thereby limiting their size and subsequently enabling successful splitting into normal capillary networks. Mechanistically, EphB4 neither inhibits VEGF-R2 activation by VEGF nor its internalization, but it modulates VEGF-R2 downstream signaling through phospho-ERK1/2. In vivo inhibitor experiments show that ERK1/2 activity is required for EphB4 regulation of VEGF-induced intussusceptive angiogenesis. Lastly, after clinically relevant VEGF gene delivery with adenoviral vectors, pharmacological stimulation of EphB4 normalizes dysfunctional vascular growth in both normoxic and ischemic muscle. These results identify EphB4 as a druggable target to modulate the outcome of VEGF gene delivery and support further investigation of its therapeutic potential.
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Affiliation(s)
- Elena Groppa
- Department of Biomedicine, University Hospital, University of Basel, Basel, Switzerland.,Department of Surgery, University Hospital, Basel, Switzerland
| | - Sime Brkic
- Department of Biomedicine, University Hospital, University of Basel, Basel, Switzerland.,Department of Surgery, University Hospital, Basel, Switzerland
| | - Andrea Uccelli
- Department of Biomedicine, University Hospital, University of Basel, Basel, Switzerland.,Department of Surgery, University Hospital, Basel, Switzerland
| | - Galina Wirth
- A. I. Virtanen Institute, University of Eastern Finland, Kuopio, Finland
| | | | - Maria Filippova
- Department of Biomedicine, University Hospital, University of Basel, Basel, Switzerland.,Department of Surgery, University Hospital, Basel, Switzerland
| | - Boris Dasen
- Department of Biomedicine, University Hospital, University of Basel, Basel, Switzerland.,Department of Surgery, University Hospital, Basel, Switzerland
| | - Veronica Sacchi
- Department of Biomedicine, University Hospital, University of Basel, Basel, Switzerland.,Department of Surgery, University Hospital, Basel, Switzerland
| | - Manuele Giuseppe Muraro
- Department of Biomedicine, University Hospital, University of Basel, Basel, Switzerland.,Department of Surgery, University Hospital, Basel, Switzerland
| | - Marianna Trani
- Department of Biomedicine, University Hospital, University of Basel, Basel, Switzerland.,Department of Surgery, University Hospital, Basel, Switzerland
| | - Silvia Reginato
- Department of Biomedicine, University Hospital, University of Basel, Basel, Switzerland.,Department of Surgery, University Hospital, Basel, Switzerland
| | - Roberto Gianni-Barrera
- Department of Biomedicine, University Hospital, University of Basel, Basel, Switzerland.,Department of Surgery, University Hospital, Basel, Switzerland
| | - Seppo Ylä-Herttuala
- A. I. Virtanen Institute, University of Eastern Finland, Kuopio, Finland.,Heart Center, Kuopio University Hospital, Kuopio, Finland
| | - Andrea Banfi
- Department of Biomedicine, University Hospital, University of Basel, Basel, Switzerland .,Department of Surgery, University Hospital, Basel, Switzerland
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22
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Davey AV. The effect of manufacturing techniques on custom-made titanium cranioplasty plates: A pilot study. J Craniomaxillofac Surg 2017; 45:2017-2027. [PMID: 29096989 DOI: 10.1016/j.jcms.2017.09.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 09/19/2017] [Accepted: 09/20/2017] [Indexed: 01/03/2023] Open
Abstract
OBJECTIVE This study investigated the effect of varying techniques on the surface characteristics of pressed titanium cranioplasty plates, commonly manufactured in laboratory practice. The aim was to highlight the variety of techniques currently used, assess these methods of manufacture and produce manufacturing recommendations. METHODS A questionnaire identified manufacturing methods commonly used by maxillofacial prosthetists. The plate surfaces were examined using scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) spectrometry. The surface differences and titanium compositions were statistically analysed. RESULTS Bead blasting with aluminium oxide (Al2O3) showed a significant decrease (p < 0.001) in titanium surface composition, replaced by a large aluminium content. Trimming tool choice had a significant impact (p = 0.001) on surface contamination by smoothing wheel material deposition; however passivation and anodising techniques had no significant effect (p = 0.293 and p = 0.257, respectively) on the surface composition or roughness of titanium samples. CONCLUSIONS A large range of manufacturing techniques of titanium cranioplasty plates was confirmed and significant differences were found. Amongst other recommendations, bead blasting with Al2O3 is not recommended for commercially pure titanium implant surface finishing due to aluminium contamination. The recommendations outlined will minimise manufacturing time, reduce risk of complication (thus costs) and unify methods to enable a safe, reliable treatment.
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Affiliation(s)
- Amy V Davey
- Reconstructive Prosthetics North Bristol NHS Trust, Gate 24, Level 1, Brunel Building, Southmead Hospital, Southmead Road, Westbury-on-Trym, Bristol, BS10 5NB, UK.
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23
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Investigation of the mechanical and chemical characteristics of nanotubular and nano-pitted anodic films on grade 2 titanium dental implant materials. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 78:69-78. [PMID: 28576039 DOI: 10.1016/j.msec.2017.04.032] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Accepted: 04/06/2017] [Indexed: 12/24/2022]
Abstract
OBJECTIVE The objective of this study was to investigate the reproducibility, mechanical integrity, surface characteristics and corrosion behavior of nanotubular (NT) titanium oxide arrays in comparison with a novel nano-pitted (NP) anodic film. METHODS Surface treatment processes were developed to grow homogenous NT and NP anodic films on the surface of grade 2 titanium discs and dental implants. The effect of process parameters on the surface characteristics and reproducibility of the anodic films was investigated and optimized. The mechanical integrity of the NT and NP anodic films were investigated by scanning electron microscopy, surface roughness measurement, scratch resistance and screwing tests, while the chemical and physicochemical properties were investigated in corrosion tests, contact angle measurement and X-ray photoelectron spectroscopy (XPS). RESULTS AND DISCUSSION The growth of NT anodic films was highly affected by process parameters, especially by temperature, and they were apt to corrosion and exfoliation. In contrast, the anodic growth of NP film showed high reproducibility even on the surface of 3-dimensional screw dental implants and they did not show signs of corrosion and exfoliation. The underlying reason of the difference in the tendency for exfoliation of the NT and NP anodic films is unclear; however the XPS analysis revealed fluorine dopants in a magnitude larger concentration on NT anodic film than on NP surface, which was identified as a possible causative. Concerning other surface characteristics that are supposed to affect the biological behavior of titanium implants, surface roughness values were found to be similar, whereas considerable differences were revealed in the wettability of the NT and NP anodic films. CONCLUSION Our findings suggest that the applicability of NT anodic films on the surface of titanium bone implants may be limited because of mechanical considerations. In contrast, it is worth to consider the applicability of nano-pitted anodic films over nanotubular arrays for the enhancement of the biological properties of titanium implants.
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Luo G, Li Z, Wang Y, Wang H, Zhang Z, Chen W, Zhang Y, Xiao Y, Li C, Guo Y, Sheng P. Resveratrol Protects against Titanium Particle-Induced Aseptic Loosening Through Reduction of Oxidative Stress and Inactivation of NF-κB. Inflammation 2016; 39:775-85. [DOI: 10.1007/s10753-016-0306-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Catauro M, Bollino F, Papale F, Piccolella S, Pacifico S. Sol–gel synthesis and characterization of SiO 2 /PCL hybrid materials containing quercetin as new materials for antioxidant implants. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 58:945-52. [DOI: 10.1016/j.msec.2015.09.054] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 08/19/2015] [Accepted: 09/13/2015] [Indexed: 01/09/2023]
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Kopova I, Stráský J, Harcuba P, Landa M, Janeček M, Bačákova L. Newly developed Ti-Nb-Zr-Ta-Si-Fe biomedical beta titanium alloys with increased strength and enhanced biocompatibility. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 60:230-238. [PMID: 26706526 DOI: 10.1016/j.msec.2015.11.043] [Citation(s) in RCA: 111] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Revised: 08/16/2015] [Accepted: 11/16/2015] [Indexed: 01/30/2023]
Abstract
Beta titanium alloys are promising materials for load-bearing orthopaedic implants due to their excellent corrosion resistance and biocompatibility, low elastic modulus and moderate strength. Metastable beta-Ti alloys can be hardened via precipitation of the alpha phase; however, this has an adverse effect on the elastic modulus. Small amounts of Fe (0-2 wt.%) and Si (0-1 wt.%) were added to Ti-35Nb-7Zr-6Ta (TNZT) biocompatible alloy to increase its strength in beta solution treated condition. Fe and Si additions were shown to cause a significant increase in tensile strength and also in the elastic modulus (from 65 GPa to 85 GPa). However, the elastic modulus of TNZT alloy with Fe and Si additions is still much lower than that of widely used Ti-6Al-4V alloy (115 GPa), and thus closer to that of the bone (10-30 GPa). Si decreases the elongation to failure, whereas Fe increases the uniform elongation thanks to increased work hardening. Primary human osteoblasts cultivated for 21 days on TNZT with 0.5Si+2Fe (wt.%) reached a significantly higher cell population density and significantly higher collagen I production than cells cultured on the standard Ti-6Al-4V alloy. In conclusion, the Ti-35Nb-7Zr-6Ta-2Fe-0.5Si alloy proves to be the best combination of elastic modulus, strength and also biological properties, which makes it a viable candidate for use in load-bearing implants.
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Affiliation(s)
- Ivana Kopova
- Department of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 14220 Prague 4, , Czech Republic.
| | - Josef Stráský
- Department of Physics of Materials, Faculty of Mathematics and Physics, Charles University in Prague, Ke Karlovu 5, 121 16 Prague 2, Czech Republic
| | - Petr Harcuba
- Department of Physics of Materials, Faculty of Mathematics and Physics, Charles University in Prague, Ke Karlovu 5, 121 16 Prague 2, Czech Republic
| | - Michal Landa
- Institute of Thermomechanics, Academy of Sciences of the Czech Republic, Dolejskova 5, 182 00 Prague 8, Czech Republic
| | - Miloš Janeček
- Department of Physics of Materials, Faculty of Mathematics and Physics, Charles University in Prague, Ke Karlovu 5, 121 16 Prague 2, Czech Republic
| | - Lucie Bačákova
- Department of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 14220 Prague 4, , Czech Republic
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Tsaryk R, Gloria A, Russo T, Anspach L, De Santis R, Ghanaati S, Unger RE, Ambrosio L, Kirkpatrick CJ. Collagen-low molecular weight hyaluronic acid semi-interpenetrating network loaded with gelatin microspheres for cell and growth factor delivery for nucleus pulposus regeneration. Acta Biomater 2015; 20:10-21. [PMID: 25861947 DOI: 10.1016/j.actbio.2015.03.041] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2014] [Revised: 03/07/2015] [Accepted: 03/18/2015] [Indexed: 12/19/2022]
Abstract
Intervertebral disc (IVD) degeneration is one of the main causes of low back pain. Current surgical treatments are complex and generally do not fully restore spine mobility. Development of injectable extracellular matrix-based hydrogels offers an opportunity for minimally invasive treatment of IVD degeneration. Here we analyze a specific formulation of collagen-low molecular weight hyaluronic acid (LMW HA) semi-interpenetrating network (semi-IPN) loaded with gelatin microspheres as a potential material for tissue engineering of the inner part of the IVD, the nucleus pulposus (NP). The material displayed a gel-like behavior, it was easily injectable as demonstrated by suitable tests and did not induce cytotoxicity or inflammation. Importantly, it supported the growth and chondrogenic differentiation potential of mesenchymal stem cells (MSC) and nasal chondrocytes (NC) in vitro and in vivo. These properties of the hydrogel were successfully combined with TGF-β3 delivery by gelatin microspheres, which promoted the chondrogenic phenotype. Altogether, collagen-LMW HA loaded with gelatin microspheres represents a good candidate material for NP tissue engineering as it combines important rheological, functional and biological features.
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Tsaryk R, Silva-Correia J, Oliveira JM, Unger RE, Landes C, Brochhausen C, Ghanaati S, Reis RL, Kirkpatrick CJ. Biological performance of cell-encapsulated methacrylated gellan gum-based hydrogels for nucleus pulposus regeneration. J Tissue Eng Regen Med 2014; 11:637-648. [DOI: 10.1002/term.1959] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Accepted: 09/17/2014] [Indexed: 01/08/2023]
Affiliation(s)
- Roman Tsaryk
- REPAIR Lab, Institute of Pathology, University Medical Center; Johannes Gutenberg University; Mainz Germany
| | - Joana Silva-Correia
- 3Bs Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho; Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; Guimarães Portugal
- ICVS/3Bs-PT Government Associate Laboratory; Braga/Guimarães Portugal
| | - Joaquim Miguel Oliveira
- 3Bs Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho; Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; Guimarães Portugal
- ICVS/3Bs-PT Government Associate Laboratory; Braga/Guimarães Portugal
| | - Ronald E. Unger
- REPAIR Lab, Institute of Pathology, University Medical Center; Johannes Gutenberg University; Mainz Germany
| | - Constantin Landes
- Department for Oral, Cranio-maxillofacial and Facial Plastic Surgery, Medical Center; Goethe University; Frankfurt Germany
| | - Christoph Brochhausen
- REPAIR Lab, Institute of Pathology, University Medical Center; Johannes Gutenberg University; Mainz Germany
| | - Shahram Ghanaati
- REPAIR Lab, Institute of Pathology, University Medical Center; Johannes Gutenberg University; Mainz Germany
- Department for Oral, Cranio-maxillofacial and Facial Plastic Surgery, Medical Center; Goethe University; Frankfurt Germany
| | - Rui L. Reis
- 3Bs Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho; Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; Guimarães Portugal
- ICVS/3Bs-PT Government Associate Laboratory; Braga/Guimarães Portugal
| | - C. James Kirkpatrick
- REPAIR Lab, Institute of Pathology, University Medical Center; Johannes Gutenberg University; Mainz Germany
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Zhao N, Zhu D. Endothelial responses of magnesium and other alloying elements in magnesium-based stent materials. Metallomics 2014; 7:118-28. [PMID: 25363018 DOI: 10.1039/c4mt00244j] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Biodegradable tailored magnesium (Mg) alloys are some of the most promising scaffolds for cardiovascular stents. During the course of degradation after implantation, all the alloying elements in the scaffold will be released to the surrounding vascular tissues. However, fundamental questions regarding the toxicity of alloying elements towards vascular cells, the maximum amount of each element that could be used in alloy design, or how each of the alloying elements affects vascular cellular activity and gene expression, are still not fully answered. This work systematically addressed these questions by revealing how application of different alloying elements commonly used in Mg stent materials influences several indices of human endothelial cell health, i.e., viability, proliferations, cytoskeletal reorganizations, migration, and the gene expression profile. The overall cell viability and proliferation showed a decreasing trend with increasing concentrations of the ions, and the half maximal effective concentrations (EC50) for each element were determined. When applied at a low concentration of around 10 mM, Mg had no adverse effects but improved cell proliferation and migration instead. Mg ions also altered endothelial gene expression significantly in a dose dependent manner. Most of the changed genes are related to angiogenesis and the cell adhesion signaling pathways. Findings from this work provide useful information on maximum safe doses of these ions for endothelial cells, endothelial responses towards these metal ions, and some guidance for future Mg stent design.
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Affiliation(s)
- Nan Zhao
- Department of Chemical, Biological and Bio-Engineering, North Carolina Agricultural and Technical State University, 1601 E Market St, McNair 329, Greensboro, North Carolina 27411, USA.
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