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Selestin Raja I, Kim C, Oh N, Park JH, Hong SW, Kang MS, Mao C, Han DW. Tailoring photobiomodulation to enhance tissue regeneration. Biomaterials 2024; 309:122623. [PMID: 38797121 DOI: 10.1016/j.biomaterials.2024.122623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 04/25/2024] [Accepted: 05/19/2024] [Indexed: 05/29/2024]
Abstract
Photobiomodulation (PBM), the use of biocompatible tissue-penetrating light to interact with intracellular chromophores to modulate the fates of cells and tissues, has emerged as a promising non-invasive approach to enhancing tissue regeneration. Unlike photodynamic or photothermal therapies that require the use of photothermal agents or photosensitizers, PBM treatment does not need external agents. With its non-harmful nature, PBM has demonstrated efficacy in enhancing molecular secretions and cellular functions relevant to tissue regeneration. The utilization of low-level light from various sources in PBM targets cytochrome c oxidase, leading to increased synthesis of adenosine triphosphate, induction of growth factor secretion, activation of signaling pathways, and promotion of direct or indirect gene expression. When integrated with stem cell populations, bioactive molecules or nanoparticles, or biomaterial scaffolds, PBM proves effective in significantly improving tissue regeneration. This review consolidates findings from in vitro, in vivo, and human clinical outcomes of both PBM alone and PBM-combined therapies in tissue regeneration applications. It encompasses the background of PBM invention, optimization of PBM parameters (such as wavelength, irradiation, and exposure time), and understanding of the mechanisms for PBM to enhance tissue regeneration. The comprehensive exploration concludes with insights into future directions and perspectives for the tissue regeneration applications of PBM.
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Affiliation(s)
| | - Chuntae Kim
- Institute of Nano-Bio Convergence, Pusan National University, Busan, 46241, Republic of Korea; Center for Biomaterials Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
| | - Nuri Oh
- Department of Chemistry and Biology, Korea Science Academy of KAIST, Busan, 47162, Republic of Korea
| | - Ji-Ho Park
- Department of Bio and Brain Engineering and KAIST Institute for Health Science and Technology, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
| | - Suck Won Hong
- Department of Cogno-Mechatronics Engineering, College of Nanoscience & Nanotechnology, Pusan National University, Busan, 46241, Republic of Korea
| | - Moon Sung Kang
- Department of Cogno-Mechatronics Engineering, College of Nanoscience & Nanotechnology, Pusan National University, Busan, 46241, Republic of Korea
| | - Chuanbin Mao
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Sha Tin, Hong Kong SAR, China.
| | - Dong-Wook Han
- Institute of Nano-Bio Convergence, Pusan National University, Busan, 46241, Republic of Korea; Department of Cogno-Mechatronics Engineering, College of Nanoscience & Nanotechnology, Pusan National University, Busan, 46241, Republic of Korea.
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2
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Feng Y, Wang J, Cao J, Cao F, Chen X. Manipulating calcium homeostasis with nanoplatforms for enhanced cancer therapy. EXPLORATION (BEIJING, CHINA) 2024; 4:20230019. [PMID: 38854493 PMCID: PMC10867402 DOI: 10.1002/exp.20230019] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 08/28/2023] [Indexed: 06/11/2024]
Abstract
Calcium ions (Ca2+) are indispensable and versatile metal ions that play a pivotal role in regulating cell metabolism, encompassing cell survival, proliferation, migration, and gene expression. Aberrant Ca2+ levels are frequently linked to cell dysfunction and a variety of pathological conditions. Therefore, it is essential to maintain Ca2+ homeostasis to coordinate body function. Disrupting the balance of Ca2+ levels has emerged as a potential therapeutic strategy for various diseases, and there has been extensive research on integrating this approach into nanoplatforms. In this review, the current nanoplatforms that regulate Ca2+ homeostasis for cancer therapy are first discussed, including both direct and indirect approaches to manage Ca2+ overload or inhibit Ca2+ signalling. Then, the applications of these nanoplatforms in targeting different cells to regulate their Ca2+ homeostasis for achieving therapeutic effects in cancer treatment are systematically introduced, including tumour cells and immune cells. Finally, perspectives on the further development of nanoplatforms for regulating Ca2+ homeostasis, identifying scientific limitations and future directions for exploitation are offered.
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Affiliation(s)
- Yanlin Feng
- Key Laboratory of Cellular Physiology at Shanxi Medical University, Ministry of Education, and the Department of PhysiologyShanxi Medical UniversityTaiyuanChina
| | - Jianlin Wang
- Key Laboratory of Cellular Physiology at Shanxi Medical University, Ministry of Education, and the Department of PhysiologyShanxi Medical UniversityTaiyuanChina
| | - Jimin Cao
- Key Laboratory of Cellular Physiology at Shanxi Medical University, Ministry of Education, and the Department of PhysiologyShanxi Medical UniversityTaiyuanChina
| | - Fangfang Cao
- Departments of Diagnostic Radiology, Surgery, Chemical and Biomolecular Engineering, and Biomedical Engineering, Yong Loo Lin School of Medicine and College of Design and EngineeringNational University of SingaporeSingaporeSingapore
- Nanomedicine Translational Research Program, NUS Center for Nanomedicine, Yong Loo Lin School of MedicineNational University of SingaporeSingaporeSingapore
| | - Xiaoyuan Chen
- Departments of Diagnostic Radiology, Surgery, Chemical and Biomolecular Engineering, and Biomedical Engineering, Yong Loo Lin School of Medicine and College of Design and EngineeringNational University of SingaporeSingaporeSingapore
- Clinical Imaging Research Centre, Centre for Translational Medicine, Yong Loo Lin School of MedicineNational University of SingaporeSingaporeSingapore
- Nanomedicine Translational Research Program, NUS Center for Nanomedicine, Yong Loo Lin School of MedicineNational University of SingaporeSingaporeSingapore
- Agency for Science, Technology, and Research (A*STAR)Institute of Molecular and Cell BiologySingaporeSingapore
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3
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Mo Y, He W, Hu S, Guo H, Li S, Zhang J, Wang X. 3D printed Si-CaP scaffold released SiO 32- and Ca 2+ to synergistically promote angiogenesis. J Biomater Appl 2024; 38:784-793. [PMID: 37963098 DOI: 10.1177/08853282231216546] [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] [Indexed: 11/16/2023]
Abstract
BACKGROUND AND PURPOSE Structuring scaffold with both osteogenic and angiogenesis capabilities is a challenge for bone tissue engineering. Powder structured Si-CaP materials have shown excellent osteogenic properties and induction of stem cell differentiation. Our research group have successful produced 3D printed Si-CaP scaffolds by DLP technology. This study aims to explore the angiogenic effects of SiO32- and Ca2+ released by 3D printed Si-CaP scaffold, and whether there is a synergistic effect between the two ions. METHODS The 3D printed Si-CaP scaffolds were immersed in endothelial cell medium solution for 24 h. The Si, Ca ion released was detected by Inductively coupled plasma-optical emission spectrometry. We used detected data as a standard to prepare the simulated solution to investigate the effect of SiO32-, Ca2+ separately. Experiment was divided into control group, Si ion group, Ca ion group and Si + Ca ion group. We evaluated different ionic effect on HUVECs viability, proliferation, migration, gene expression, and tube formation on different groups. RESULTS The concentration of SiO32- was detected as 15.71 ± 0.04 μg/mL, Ca2+ as 67.14 ± 0.95 μg/mL. Na2SiO3 and CaCl2 were used to prepare the simulated solution. There were no statistically difference between simulated solution from ion released by scaffold. Si + Ca group promoted the gene expression significantly compared with the control group, p < .01. Expression of vascular-associated protein in Si + Ca ion group was higher than that in Si ion group, Ca ion group and control group. Si + Ca ion group significantly enhanced endothelial cell on migration and tube formation assay. CONCLUSION The 3D printed Si-CaP scaffold can release effective physiological concentrations of Si, Ca ions. Si and Ca ions have a synergistic effect on promoting angiogenesis of HUVECs. 3D printed Si-CaP scaffold is promising in vascularized bone tissue engineering application.
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Affiliation(s)
- Yongqiang Mo
- Department of Orthopaedic, Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Weitao He
- Department of Orthopaedic, Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Shiqi Hu
- Department of Orthopaedic, Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Hongchun Guo
- Department of Orthopaedic, Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Shuangzuo Li
- Department of Orthopaedic, Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jingwei Zhang
- Department of Orthopaedic, Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xintao Wang
- Department of Orthopaedic, Second Affiliated Hospital of Harbin Medical University, Harbin, China
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Chang CJ, Lee W, Liou YC, Chang YL, Lai YC, Ding S, Chen HY, Chen HY, Chang YC. Synergy Effect of Aluminum Complexes During the Ring-Opening Polymerization of ε-Caprolactone: Inductive Effects Between Dinuclear Metal Catalysts. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Microfluidic 3D Platform to Evaluate Endothelial Progenitor Cell Recruitment by Bioactive Materials. Acta Biomater 2022; 151:264-277. [PMID: 35981686 DOI: 10.1016/j.actbio.2022.08.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 08/04/2022] [Accepted: 08/10/2022] [Indexed: 12/30/2022]
Abstract
Most of the conventional in vitro models to test biomaterial-driven vascularization are too simplistic to recapitulate the complex interactions taking place in the actual cell microenvironment, which results in a poor prediction of the in vivo performance of the material. However, during the last decade, cell culture models based on microfluidic technology have allowed attaining unprecedented levels of tissue biomimicry. In this work, we propose a microfluidic-based 3D model to evaluate the effect of bioactive biomaterials capable of releasing signalling cues (such as ions or proteins) in the recruitment of endogenous endothelial progenitor cells, a key step in the vascularization process. The usability of the platform is demonstrated using experimentally-validated finite element models and migration and proliferation studies with rat endothelial progenitor cells (rEPCs) and bone marrow-derived rat mesenchymal stromal cells (BM-rMSCs). As a proof of concept of biomaterial evaluation, the response of rEPCs to an electrospun composite made of polylactic acid with calcium phosphates nanoparticles (PLA+CaP) was compared in a co-culture microenvironment with BM-rMSC to a regular PLA control. Our results show a significantly higher rEPCs migration and the upregulation of several pro-inflammatory and proangiogenic proteins in the case of the PLA+CaP. The effects of osteopontin (OPN) on the rEPCs migratory response were also studied using this platform, suggesting its important role in mediating their recruitment to a calcium-rich microenvironment. This new tool could be applied to screen the capacity of a variety of bioactive scaffolds to induce vascularization and accelerate the preclinical testing of biomaterials. STATEMENT OF SIGNIFICANCE: : For many years researchers have used neovascularization models to evaluate bioactive biomaterials both in vitro, with low predictive results due to their poor biomimicry and minimal control over cell cues such as spatiotemporal biomolecule signaling, and in vivo models, presenting drawbacks such as being highly costly, time-consuming, poor human extrapolation, and ethically controversial. We describe a compact microphysiological platform designed for the evaluation of proangiogenesis in biomaterials through the quantification of the level of sprouting in a mimicked endothelium able to react to gradients of biomaterial-released signals in a fibrin-based extracellular matrix. This model is a useful tool to perform preclinical trustworthy studies in tissue regeneration and to better understand the different elements involved in the complex process of vascularization.
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Gu P, Xu Y, Liu Q, Wang Y, Li Z, Chen M, Mao R, Liang J, Zhang X, Fan Y, Sun Y. Tailorable 3DP Flexible Scaffolds with Porosification of Filaments Facilitate Cell Ingrowth and Biomineralized Deposition. ACS APPLIED MATERIALS & INTERFACES 2022; 14:32914-32926. [PMID: 35829709 DOI: 10.1021/acsami.2c07649] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Facilitating cell ingrowth and biomineralized deposition inside filaments of 3DP scaffolds are an ideal bone repair strategy. Here, 3D printed PLGA/HA scaffolds with hydroxyapatite content of 50% (P5H5) and 70% (P3H7) were prepared by optimizing 3D printing inks, which exhibited good tailorability and foldability to meet clinical maneuverability. The supercritical CO2 foaming technology further endowed the filaments of P5H5 with a richer interconnected pore structure (P5H5-C). The finite element and computational fluid dynamics simulation analysis indicated that the porosification could effectively reduce the stress concentration at the filament junction and improved the overall permeability of the scaffold. The results of in vitro experiments confirmed that P5H5-C promoted the adsorption of proteins on the surface and inside of filaments, accelerated the release of Ca and P ions, and significantly upregulated osteogenesis (Col I, ALP, and OPN)- and angiogenesis (VEGF)-related gene expression. Subcutaneous ectopic osteogenesis experiments in nude mice further verified that P5H5-C facilitated cell growth inside filaments and biomineralized deposition, as well as significantly upregulated the expression of osteogenesis- and angiogenesis-related genes (Col I, ALP, OCN, and VEGF) and protein secretion (ALP, RUNX2, and VEGF). The porosification of filaments by supercritical CO2 foaming provided a new strategy for accelerating osteogenesis of 3DP implants.
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Affiliation(s)
- Peiyang Gu
- National Engineering Research Center for Biomaterials, Sichuan University, 29# Wangjiang Road, Chengdu 610064, China
- College of Biomedical Engineering, Sichuan University, 29# Wangjiang Road, Chengdu 610064, China
| | - Yang Xu
- National Engineering Research Center for Biomaterials, Sichuan University, 29# Wangjiang Road, Chengdu 610064, China
- College of Biomedical Engineering, Sichuan University, 29# Wangjiang Road, Chengdu 610064, China
| | - Quanying Liu
- National Engineering Research Center for Biomaterials, Sichuan University, 29# Wangjiang Road, Chengdu 610064, China
- College of Biomedical Engineering, Sichuan University, 29# Wangjiang Road, Chengdu 610064, China
| | - Yuxiang Wang
- National Engineering Research Center for Biomaterials, Sichuan University, 29# Wangjiang Road, Chengdu 610064, China
- College of Biomedical Engineering, Sichuan University, 29# Wangjiang Road, Chengdu 610064, China
| | - Zhulian Li
- National Engineering Research Center for Biomaterials, Sichuan University, 29# Wangjiang Road, Chengdu 610064, China
- College of Biomedical Engineering, Sichuan University, 29# Wangjiang Road, Chengdu 610064, China
| | - Manyu Chen
- National Engineering Research Center for Biomaterials, Sichuan University, 29# Wangjiang Road, Chengdu 610064, China
- College of Biomedical Engineering, Sichuan University, 29# Wangjiang Road, Chengdu 610064, China
| | - Ruiqi Mao
- National Engineering Research Center for Biomaterials, Sichuan University, 29# Wangjiang Road, Chengdu 610064, China
- College of Biomedical Engineering, Sichuan University, 29# Wangjiang Road, Chengdu 610064, China
| | - Jie Liang
- National Engineering Research Center for Biomaterials, Sichuan University, 29# Wangjiang Road, Chengdu 610064, China
- College of Biomedical Engineering, Sichuan University, 29# Wangjiang Road, Chengdu 610064, China
- Sichuan Testing Center for Biomaterials and Medical Devices, Sichuan University, 29# Wangjiang Road, Chengdu 610064, China
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, 29# Wangjiang Road, Chengdu 610064, China
- College of Biomedical Engineering, Sichuan University, 29# Wangjiang Road, Chengdu 610064, China
| | - Yujiang Fan
- National Engineering Research Center for Biomaterials, Sichuan University, 29# Wangjiang Road, Chengdu 610064, China
- College of Biomedical Engineering, Sichuan University, 29# Wangjiang Road, Chengdu 610064, China
| | - Yong Sun
- National Engineering Research Center for Biomaterials, Sichuan University, 29# Wangjiang Road, Chengdu 610064, China
- College of Biomedical Engineering, Sichuan University, 29# Wangjiang Road, Chengdu 610064, China
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Mussel-inspired multifunctional surface through promoting osteogenesis and inhibiting osteoclastogenesis to facilitate bone regeneration. NPJ Regen Med 2022; 7:29. [PMID: 35562356 PMCID: PMC9106696 DOI: 10.1038/s41536-022-00224-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 04/12/2022] [Indexed: 02/07/2023] Open
Abstract
Osteogenesis and osteoclastogenesis are closely associated during the bone regeneration process. The development of multifunctional bone repair scaffolds with dual therapeutic actions (pro-osteogenesis and anti-osteoclastogenesis) is still a challenging task for bone tissue engineering applications. Herein, through a facile surface coating process, mussel-inspired polydopamine (PDA) is adhered to the surface of a biocompatible porous scaffold followed by the immobilization of a small-molecule activator (LYN-1604 (LYN)) and the subsequent in situ coprecipitation of hydroxyapatite (HA) nanocrystals. PDA, acting as an intermediate bridge, can provide strong LYN immobilization and biomineralization ability, while LYN targets osteoclast precursor cells to inhibit osteoclastic differentiation and functional activity, which endows LYN/HA-coated hybrid scaffolds with robust anti-osteoclastogenesis ability. Due to the synergistic effects of the LYN and HA components, the obtained three-dimensional hybrid scaffolds exhibited the dual effects of osteoclastic inhibition and osteogenic stimulation, thereby promoting bone tissue repair. Systematic characterization experiments confirmed the successful fabrication of LYN/HA-coated hybrid scaffolds, which exhibited an interconnected porous structure with nanoroughened surface topography, favorable hydrophilicity, and improved mechanical properties, as well as the sustained sequential release of LYN and Ca ions. In vitro experiments demonstrated that LYN/HA-coated hybrid scaffolds possessed satisfactory cytocompatibility, effectively promoting cell adhesion, spreading, proliferation, alkaline phosphatase activity, matrix mineralization, and osteogenesis-related gene and protein secretion, as well as stimulating angiogenic differentiation of endothelial cells. In addition to osteogenesis, the engineered scaffolds also significantly reduced osteoclastogenesis, such as tartrate-resistant acid phosphatase activity, F-actin ring staining, and osteoclastogenesis-related gene and protein secretion. More importantly, in a rat calvarial defect model, the newly developed hybrid scaffolds significantly promoted bone repair and regeneration. Microcomputed tomography, histological, and immunohistochemical analyses all revealed that the LYN/HA-coated hybrid scaffolds possessed not only reliable biosafety but also excellent osteogenesis-inducing and osteoclastogenesis-inhibiting effects, resulting in faster and higher-quality bone tissue regeneration. Taken together, this study offers a powerful and promising strategy to construct multifunctional nanocomposite scaffolds by promoting osteo/angiogenesis and suppressing osteoclastogenesis to accelerate bone regeneration.
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Vrchovecká K, Pávková-Goldbergová M, Engqvist H, Pujari-Palmer M. Cytocompatibility and Bioactive Ion Release Profiles of Phosphoserine Bone Adhesive: Bridge from In Vitro to In Vivo. Biomedicines 2022; 10:biomedicines10040736. [PMID: 35453486 PMCID: PMC9044752 DOI: 10.3390/biomedicines10040736] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 03/09/2022] [Accepted: 03/18/2022] [Indexed: 02/06/2023] Open
Abstract
One major challenge when developing new biomaterials is translating in vitro testing to in vivo models. We have recently shown that a single formulation of a bone tissue adhesive, phosphoserine modified cement (PMC), is safe and resorbable in vivo. Herein, we screened many new adhesive formulations, for cytocompatibility and bioactive ion release, with three cell lines: MDPC23 odontoblasts, MC3T3 preosteoblasts, and L929 fibroblasts. Most formulations were cytocompatible by indirect contact testing (ISO 10993-12). Formulations with larger amounts of phosphoserine (>50%) had delayed setting times, greater ion release, and cytotoxicity in vitro. The trends in ion release from the adhesive that were cured for 24 h (standard for in vitro) were similar to release from the adhesives cured only for 5−10 min (standard for in vivo), suggesting that we may be able to predict the material behavior in vivo, using in vitro methods. Adhesives containing calcium phosphate and silicate were both cytocompatible for seven days in direct contact with cell monolayers, and ion release increased the alkaline phosphatase (ALP) activity in odontoblasts, but not pre-osteoblasts. This is the first study evaluating how PMC formulation affects osteogenic cell differentiation (ALP), cytocompatibility, and ion release, using in situ curing conditions similar to conditions in vivo.
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Affiliation(s)
- Kateřina Vrchovecká
- Department of Pathology Physiology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic; (K.V.); (M.P.-G.)
| | - Monika Pávková-Goldbergová
- Department of Pathology Physiology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic; (K.V.); (M.P.-G.)
| | - Håkan Engqvist
- Department of Materials Science and Engineering, Applied Material Science, Uppsala University, 75103 Uppsala, Sweden
- Correspondence: (H.E.); (M.P.-P.)
| | - Michael Pujari-Palmer
- Department of Materials Science and Engineering, Applied Material Science, Uppsala University, 75103 Uppsala, Sweden
- Correspondence: (H.E.); (M.P.-P.)
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Multiple Ion Scaffold-Based Delivery Platform for Potential Application in Early Stages of Bone Regeneration. MATERIALS 2021; 14:ma14247676. [PMID: 34947272 PMCID: PMC8706177 DOI: 10.3390/ma14247676] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 11/10/2021] [Accepted: 12/07/2021] [Indexed: 11/16/2022]
Abstract
Bone has the intrinsic capacity to regenerate itself, as long as the damage is small, through the sequential stimulation of specific phases, such as angiogenesis followed by osteogenesis. However, when the damage is extensive it is unable to regenerate and bone tissue engineering is used as an alternative. In this study, we developed a platform to allow the triple ion delivery with sequential delivery capacity to potentially stimulate antibacterial, angiogenic and osteogenic processes. The scaffold-based platform consisted of alginate/hydroxyapatite (HA) microparticles embedded in alginate fibers. Firstly, microparticles were developed using different ratios of alginate:HA using the spraying method, resulting in a high reproducibility of the technique. Microparticle size between 100–300 µm and ratio 1:40 resulted in a more spherical morphology and were selected for their incorporation into alginate fiber. Different amounts of copper and cobalt were added with the microparticles and alginate fiber, respectively, were used as model ions which could eventually modulate and mimic antimicrobial and angiogenic processes. Moreover, calcium ion was also incorporated in both, in order to provide the system with potential osteogenic properties together with HA. The multiple delivery of copper, cobalt and calcium released were in the therapeutic range as measured by induced coupled plasma (ICP), providing a promising delivery strategy for tissue engineering.
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Liu L, Shang Y, Li C, Jiao Y, Qiu Y, Wang C, Wu Y, Zhang Q, Wang F, Yang Z, Wang L. Hierarchical Nanostructured Electrospun Membrane with Periosteum-Mimic Microenvironment for Enhanced Bone Regeneration. Adv Healthc Mater 2021; 10:e2101195. [PMID: 34350724 DOI: 10.1002/adhm.202101195] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 07/17/2021] [Indexed: 12/11/2022]
Abstract
An ideal periosteum substitute should be able to mimic the periosteum microenvironment that continuously provides growth factors, recruits osteoblasts, and subsequent extracellular matrix (ECM) mineralization to accelerate bone regeneration. Here, a calcium-binding peptide-loaded poly(ε-caprolactone) (PCL) electrospun membrane modified by the shish-kebab structure that can mimic the periosteum microenvironment was developed as a bionic periosteum. The calcium-binding peptide formed by the negatively charged heptaglutamate domain (E7) in the E7-BMP-2 with calcium ion in the tricalcium phosphate sol (TCP sol) through electrostatic chelation not only extended the release cycle of E7-BMP-2 but also promoted the biomineralization of the bionic periosteum. Cell experiments showed that the bionic periosteum could significantly improve the osteogenic differentiation of the rat-bone marrow-derived mesenchymal stem cells (rBMSCs) through both chemical composition and physical structure. The in vivo evaluation of the bionic periosteum confirmed the inherent osteogenesis of this periosteum microenvironment, which could promote the regeneration of vascularized bone tissue. Therefore, the hierarchical nanostructured electrospun membrane with periosteum-mimic microenvironment is a promising periosteum substitute for the treatment of bone defects.
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Affiliation(s)
- Laijun Liu
- Key Laboratory of Textile Science and Technology of Ministry of Education College of Textiles Donghua University Shanghai 201620 China
| | - Yuna Shang
- State Key Laboratory of Medicinal Chemical Biology Key Laboratory of Bioactive Materials Ministry of Education and College of Life Sciences Nankai University Tianjin 300071 China
| | - Chaojing Li
- Key Laboratory of Textile Science and Technology of Ministry of Education College of Textiles Donghua University Shanghai 201620 China
| | - Yongjie Jiao
- Key Laboratory of Textile Science and Technology of Ministry of Education College of Textiles Donghua University Shanghai 201620 China
| | - Yanchen Qiu
- Key Laboratory of Textile Science and Technology of Ministry of Education College of Textiles Donghua University Shanghai 201620 China
| | - Chengyi Wang
- Key Laboratory of Textile Science and Technology of Ministry of Education College of Textiles Donghua University Shanghai 201620 China
| | - Yuge Wu
- Key Laboratory of Textile Science and Technology of Ministry of Education College of Textiles Donghua University Shanghai 201620 China
| | - Qiuyun Zhang
- Key Laboratory of Textile Science and Technology of Ministry of Education College of Textiles Donghua University Shanghai 201620 China
| | - Fujun Wang
- Key Laboratory of Textile Industry for Biomedical Textile Materials and Technology Donghua University Shanghai 201620 China
| | - Zhimou Yang
- State Key Laboratory of Medicinal Chemical Biology Key Laboratory of Bioactive Materials Ministry of Education and College of Life Sciences Nankai University Tianjin 300071 China
| | - Lu Wang
- Key Laboratory of Textile Science and Technology of Ministry of Education College of Textiles Donghua University Shanghai 201620 China
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Gryshkov O, AL Halabi F, Kuhn AI, Leal-Marin S, Freund LJ, Förthmann M, Meier N, Barker SA, Haastert-Talini K, Glasmacher B. PVDF and P(VDF-TrFE) Electrospun Scaffolds for Nerve Graft Engineering: A Comparative Study on Piezoelectric and Structural Properties, and In Vitro Biocompatibility. Int J Mol Sci 2021; 22:11373. [PMID: 34768804 PMCID: PMC8583857 DOI: 10.3390/ijms222111373] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 10/14/2021] [Accepted: 10/16/2021] [Indexed: 12/19/2022] Open
Abstract
Polyvinylidene fluoride (PVDF) and its copolymer with trifluoroethylene (P(VDF-TrFE)) are considered as promising biomaterials for supporting nerve regeneration because of their proven biocompatibility and piezoelectric properties that could stimulate cell ingrowth due to their electrical activity upon mechanical deformation. For the first time, this study reports on the comparative analysis of PVDF and P(VDF-TrFE) electrospun scaffolds in terms of structural and piezoelectric properties as well as their in vitro performance. A dynamic impact test machine was developed, validated, and utilised, to evaluate the generation of an electrical voltage upon the application of an impact load (varying load magnitude and frequency) onto the electrospun PVDF (15-20 wt%) and P(VDF-TrFE) (10-20 wt%) scaffolds. The cytotoxicity and in vitro performance of the scaffolds was evaluated with neonatal rat (nrSCs) and adult human Schwann cells (ahSCs). The neurite outgrowth behaviour from sensory rat dorsal root ganglion neurons cultured on the scaffolds was analysed qualitatively. The results showed (i) a significant increase of the β-phase content in the PVDF after electrospinning as well as a zeta potential similar to P(VDF-TrFE), (ii) a non-constant behaviour of the longitudinal piezoelectric strain constant d33, depending on the load and the load frequency, and (iii) biocompatibility with cultured Schwann cells and guiding properties for sensory neurite outgrowth. In summary, the electrospun PVDF-based scaffolds, representing piezoelectric activity, can be considered as promising materials for the development of artificial nerve conduits for the peripheral nerve injury repair.
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Affiliation(s)
- Oleksandr Gryshkov
- Institute for Multiphase Processes, Leibniz University Hannover, An der Universität 1, Building 8143, 30823 Garbsen, Germany; (A.I.K.); (S.L.-M.); (S.-A.B.); (B.G.)
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development, Stadtfelddamm 34, 30625 Hannover, Germany
| | - Fedaa AL Halabi
- Institute for Multiphase Processes, Leibniz University Hannover, An der Universität 1, Building 8143, 30823 Garbsen, Germany; (A.I.K.); (S.L.-M.); (S.-A.B.); (B.G.)
| | - Antonia Isabel Kuhn
- Institute for Multiphase Processes, Leibniz University Hannover, An der Universität 1, Building 8143, 30823 Garbsen, Germany; (A.I.K.); (S.L.-M.); (S.-A.B.); (B.G.)
| | - Sara Leal-Marin
- Institute for Multiphase Processes, Leibniz University Hannover, An der Universität 1, Building 8143, 30823 Garbsen, Germany; (A.I.K.); (S.L.-M.); (S.-A.B.); (B.G.)
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development, Stadtfelddamm 34, 30625 Hannover, Germany
| | - Lena Julie Freund
- Institute of Neuroanatomy and Cell Biology, Hannover Medical School, Centre for Systems Neuroscience (ZSN) Hannover, 30559 Hannover, Germany; (L.J.F.); (M.F.); (K.H.-T.)
| | - Maria Förthmann
- Institute of Neuroanatomy and Cell Biology, Hannover Medical School, Centre for Systems Neuroscience (ZSN) Hannover, 30559 Hannover, Germany; (L.J.F.); (M.F.); (K.H.-T.)
| | - Nils Meier
- Institute for Technical Chemistry, Braunschweig University of Technology, Hagenring 30, 38106 Braunschweig, Germany;
| | - Sven-Alexander Barker
- Institute for Multiphase Processes, Leibniz University Hannover, An der Universität 1, Building 8143, 30823 Garbsen, Germany; (A.I.K.); (S.L.-M.); (S.-A.B.); (B.G.)
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development, Stadtfelddamm 34, 30625 Hannover, Germany
| | - Kirsten Haastert-Talini
- Institute of Neuroanatomy and Cell Biology, Hannover Medical School, Centre for Systems Neuroscience (ZSN) Hannover, 30559 Hannover, Germany; (L.J.F.); (M.F.); (K.H.-T.)
| | - Birgit Glasmacher
- Institute for Multiphase Processes, Leibniz University Hannover, An der Universität 1, Building 8143, 30823 Garbsen, Germany; (A.I.K.); (S.L.-M.); (S.-A.B.); (B.G.)
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development, Stadtfelddamm 34, 30625 Hannover, Germany
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12
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Kamboj N, Ressler A, Hussainova I. Bioactive Ceramic Scaffolds for Bone Tissue Engineering by Powder Bed Selective Laser Processing: A Review. MATERIALS 2021; 14:ma14185338. [PMID: 34576562 PMCID: PMC8469313 DOI: 10.3390/ma14185338] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 09/02/2021] [Accepted: 09/12/2021] [Indexed: 02/07/2023]
Abstract
The implementation of a powder bed selective laser processing (PBSLP) technique for bioactive ceramics, including selective laser sintering and melting (SLM/SLS), a laser powder bed fusion (L-PBF) approach is far more challenging when compared to its metallic and polymeric counterparts for the fabrication of biomedical materials. Direct PBSLP can offer binder-free fabrication of bioactive scaffolds without involving postprocessing techniques. This review explicitly focuses on the PBSLP technique for bioactive ceramics and encompasses a detailed overview of the PBSLP process and the general requirements and properties of the bioactive scaffolds for bone tissue growth. The bioactive ceramics enclosing calcium phosphate (CaP) and calcium silicates (CS) and their respective composite scaffolds processed through PBSLP are also extensively discussed. This review paper also categorizes the bone regeneration strategies of the bioactive scaffolds processed through PBSLP with the various modes of functionalization through the incorporation of drugs, stem cells, and growth factors to ameliorate critical-sized bone defects based on the fracture site length for personalized medicine.
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Affiliation(s)
- Nikhil Kamboj
- Department of Mechanical and Industrial Engineering, Tallinn University of Technology, Ehitajate Tee 5, 19086 Tallinn, Estonia;
| | - Antonia Ressler
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev Trg 19, p.p.177, HR-10001 Zagreb, Croatia;
| | - Irina Hussainova
- Department of Mechanical and Industrial Engineering, Tallinn University of Technology, Ehitajate Tee 5, 19086 Tallinn, Estonia;
- Correspondence:
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13
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Zhou L, Han Y, Ding J, Chen X, Huang S, Xing X, Wu D, Chen J. Regulation of an Antimicrobial Peptide GL13K-Modified Titanium Surface on Osteogenesis, Osteoclastogenesis, and Angiogenesis Base on Osteoimmunology. ACS Biomater Sci Eng 2021; 7:4569-4580. [PMID: 34432981 DOI: 10.1021/acsbiomaterials.1c00639] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Creating a pro-regenerative immune microenvironment around implant biomaterial surfaces is significant to osseointegration. Immune cells, especially macrophages that participate in the osseointegration, including osteogenesis, osteoclastogenesis, and angiogenesis, should be considered when testing biomaterials. In this study, we immobilized an antimicrobial peptide GL13K with immunomodulatory properties onto a titanium surface via silanization. The modified surfaces show good biocompatibility with bone mesenchymal stromal cells (BMSCs), human umbilical vein endothelial cells (HUVECs), and RAW264.7. By co-culturing BMSCs with RAW264.7, we found that the GL13K-coated titanium surfaces could promote late-stage osteogenesis as demonstrated by the upregulated expression of recombinant collagen type I alpha 1 (COL-1α1) and more extracellular matrix mineralization, while the early phase remained unchanged. The surfaces inhibited the osteoclastogenic differentiation of RAW264.7 cells by restraining nuclear factor-activated T cells, cytoplasmic 1 (NFATc1), the main factor of the receptor activator of nuclear factor-κ B, and the receptor activator of the nuclear factor-κ B ligand signaling pathway, from entering the nucleus and further reduced the expression of the activating osteoclastogenic tartrate-resistant acid phosphatase gene. Moreover, the GL13K-coated titanium surface demonstrated significant promotion of angiogenesis differentiation of HUVECs as indicated by the upregulated expression of essential angiogenesis function genes, including hypoxia-inducible factor-1α, endothelial nitric oxide synthase, kinase insert domain receptor, and vascular endothelial growth factor A (HIF-1α, eNOS, KDR, and VEGF-A). Taken together, these results demonstrated that the GL13K coating had properties of osteogenesis, angiogenesis, and anti-osteoclastogenesis via its immunomodulatory potential.
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Affiliation(s)
- Lin Zhou
- School and Hospital of Stomatology, Fujian Medical University, Fuzhou 350001, People's Republic of China
| | - Yu Han
- Stomatological Key Lab of Fujian College and University, Fujian Medical University, Fuzhou 350001, People's Republic of China
| | - Jiamin Ding
- Department of Oral Mucosa Affiliated Stomatological Hospital of Fujian Medical University, Fuzhou 350001, People's Republic of China
| | - Xuxi Chen
- Institute of Stomatology, Fujian Medical University, Fuzhou 350001, People's Republic of China
| | - Shiying Huang
- Fujian Provincial Engineering Research Center of Oral Biomaterial, Fuzhou 350001, People's Republic of China
| | - Xiaojie Xing
- Research Center of Dental Esthetics and Biomechanics, Fujian Medical University, Fuzhou 350001, People's Republic of China
| | - Dong Wu
- Research Center of Dental and Craniofacial Implants, Fujian Medical University, Fuzhou 350001, People's Republic of China
| | - Jiang Chen
- School and Hospital of Stomatology, Fujian Medical University, Fuzhou 350001, People's Republic of China
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14
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Cheng SY, Chiang YL, Chang YH, Thissen H, Tsai SW. An aqueous-based process to bioactivate poly(ε-caprolactone)/mesoporous bioglass composite surfaces by prebiotic chemistry-inspired polymer coatings for biomedical applications. Colloids Surf B Biointerfaces 2021; 205:111913. [PMID: 34120089 DOI: 10.1016/j.colsurfb.2021.111913] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 02/23/2021] [Accepted: 06/05/2021] [Indexed: 10/21/2022]
Abstract
Despite the wide use of aliphatic polyesters, such as poly(L-lactic acid) (PLLA) and poly(ε-caprolactone) (PCL), for many biomedical applications, these materials are limited due to their hydrophobic properties and lack of functional groups to bond with ligands to enhance the cell reorganization. Recently, a composite consisting of bioglass and PCL was demonstrated to enhance the mechanical strength and to improve the degradation rate. Although numerous approaches have been developed to improve the wettability of aliphatic polyesters to create a favorable interface with cells, only few surface modification methods can be independently applied to surfaces with different material. In this work, mesoporous bioglass (MBG) nanoparticles embedded in PCL films were modified by the polymerization of aminomalonitrile (AMN) with 3,4,5-trihydroxybenzaldehyde (THBA). The copolymer layer was further utilized as a mediator to conjugate chitosan and evaluate the antibacterial efficacy. Our results show that the hydrophilicity of the composite membranes significantly improved after treatment. In addition, after immersion in simulated body fluid (SBF) for 14 days, hydroxyapatite formation was only observed on the treated membranes. This result demonstrates that the surface treatment did not alter the MBG bioactivity. Moreover, the cell culture results reveal that the extension level of cells and expression of alkaline phosphatase activity (ALP) of osteoblast-like (MG63) cells were higher on treated composite films compared to untreated ones. The results imply that the treatment procedure can be simultaneously and homogeneously applied to the organic/inorganic composites. In addition, Staphylococcus aureus adhesion on AMN-co-THBA and chitosan/ AMN-co-THBA was significantly lower than untreated PCL. Moreover, the percentage of dead bacteria was highest on the chitosan/ AMN-co-THBA membranes. These results indicate that the AMN-co-THBA modification can be used in composite materials and complex constructs, and it provides a potential method to create versatile surface properties for biomedical applications.
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Affiliation(s)
- Sheng-Ying Cheng
- Graduate Institute of Biomedical Engineering, Chang Gung University, Taoyuan, 333, Taiwan
| | - Yu-Lun Chiang
- Graduate Institute of Biomedical Engineering, Chang Gung University, Taoyuan, 333, Taiwan
| | - Yu-Han Chang
- Department of Orthopaedic Surgery, Chang Gung Memorial Hospital, Linkou, Taiwan
| | - Helmut Thissen
- Commonwealth Scientific and Industrial Research Organisation (CSIRO), Clayton, VIC, 3168, Australia
| | - Shiao-Wen Tsai
- Graduate Institute of Biomedical Engineering, Chang Gung University, Taoyuan, 333, Taiwan; Department of Periodontics, Chang Gung Memorial Hospital, Taipei, Taiwan.
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15
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Laijun L, Yu Z, Chaojing L, Jifu M, Fujun W, Lu W. An enhanced periosteum structure/function dual mimicking membrane for in-siturestorations of periosteum and bone. Biofabrication 2021; 13. [PMID: 33878742 DOI: 10.1088/1758-5090/abf9b0] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 04/20/2021] [Indexed: 12/24/2022]
Abstract
Periosteum plays a pivotal role in bone formation and reconstruction. The ideal repair process for critical-size bone defects with periosteum damage is to induce regeneration of periosteum tissue and the subsequent bone regeneration derived by the periosteum. Inspired by the bilayer structure of the natural periosteum, we develop a periosteum structure/function dual mimicking membrane for thein-siturestoration of periosteum and bone tissue. Among them, the macroporous fluffy guiding layer (TPF) simulates the fibrous layer of the natural periosteum, which is conducive to infiltration and oriented growth of fibroblasts. And the extracellular matrix-like bioactive layer (TN) simulates the cambium layer of the natural periosteum, which significantly enhances the proliferation and osteogenic differentiation of rat bone marrow mesenchymal stem cells. A middle dense layer (PC) connects the above two layers and has the function of preventing the invasion of soft tissues while enhancing the biomimetic periosteum.In vivorestoration results show that the tri-layer biomimetic periosteum (TPF/PC/TN) has an outstanding effect in promoting the regeneration of both vascularized periosteum and bone at the same time. Therefore, the enhanced biomimetic periosteum developed in this research has a great clinical value in the efficient and high-quality reconstruction of critical-size bone defects with periosteum damage.
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Affiliation(s)
- Liu Laijun
- Key Laboratory of Textile Science and Technology of Ministry of Education and College of Textiles, Donghua University, 2999 North Renmin Road, Shanghai 201620, People's Republic of China
| | - Zhang Yu
- Key Laboratory of Textile Science and Technology of Ministry of Education and College of Textiles, Donghua University, 2999 North Renmin Road, Shanghai 201620, People's Republic of China
| | - Li Chaojing
- Key Laboratory of Textile Science and Technology of Ministry of Education and College of Textiles, Donghua University, 2999 North Renmin Road, Shanghai 201620, People's Republic of China
| | - Mao Jifu
- Key Laboratory of Textile Science and Technology of Ministry of Education and College of Textiles, Donghua University, 2999 North Renmin Road, Shanghai 201620, People's Republic of China.,Engineering Research Center of Technical Textiles, Ministry of Education, Donghua University, Shanghai 201620, People's Republic of China
| | - Wang Fujun
- Key Laboratory of Textile Science and Technology of Ministry of Education and College of Textiles, Donghua University, 2999 North Renmin Road, Shanghai 201620, People's Republic of China.,Engineering Research Center of Technical Textiles, Ministry of Education, Donghua University, Shanghai 201620, People's Republic of China
| | - Wang Lu
- Key Laboratory of Textile Science and Technology of Ministry of Education and College of Textiles, Donghua University, 2999 North Renmin Road, Shanghai 201620, People's Republic of China
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16
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Li C, Liu L, Zhang T, Wang F, Wang L. β-Tricalcium phosphate contained beaded-fiber scaffolds characterized by high early osteoinductive activity for vascularized bone regeneration. Colloids Surf B Biointerfaces 2021; 201:111639. [PMID: 33639511 DOI: 10.1016/j.colsurfb.2021.111639] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 02/09/2021] [Accepted: 02/15/2021] [Indexed: 10/24/2022]
Abstract
The calcium phosphate component and surface topology of a scaffold are considered the two main factors that influence osteogenic differentiation. This research reports a one-step but effective scaffold preparation method that can regulate the morphology of nanofibers and control the distribution and release behavior of calcium phosphate nanoparticles (CaPs). Two beaded-on-string CaPs-loaded electrospun scaffolds (PT7.5 and PT4.5) with composite microstructures of microbeads and nanofibers were fabricated by adjusting the concentration of the electrospinning solution. The presence of the composite microstructure was conducive to the surface exposure and sustained release of bioactive components, which in turn could significantly promote the biomineralization and protein adsorption of the scaffold. A study of the human umbilical vein endothelial cells (HUVECs) and rat-bone marrow-derived mesenchymal stem cells (rBMSCs) revealed that cells cultured on scaffolds with composite microstructures (especially PT4.5) could enhance tube formation of the HUVECs and osteogenic differentiation of rBMSCs. The PT4.5 with significantly different microbead and nanofiber sizes presented the high potential to improve the early osteoinductive activity and angiogenesis of the CaPs-loaded electrospun scaffold and expand its advantage in bone regeneration.
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Affiliation(s)
- Chaojing Li
- Key Laboratory of Textile Science and Technology of Ministry of Education and College of Textiles, Donghua University, 2999 North Renmin Road, Shanghai 201620, China.
| | - Laijun Liu
- Key Laboratory of Textile Science and Technology of Ministry of Education and College of Textiles, Donghua University, 2999 North Renmin Road, Shanghai 201620, China
| | - Tiantian Zhang
- Key Laboratory of Textile Science and Technology of Ministry of Education and College of Textiles, Donghua University, 2999 North Renmin Road, Shanghai 201620, China
| | - Fujun Wang
- Key Laboratory of Textile Science and Technology of Ministry of Education and College of Textiles, Donghua University, 2999 North Renmin Road, Shanghai 201620, China; Engineering Research Center of Technical Textiles, Ministry of Education, Donghua University, Shanghai 201620, China.
| | - Lu Wang
- Key Laboratory of Textile Science and Technology of Ministry of Education and College of Textiles, Donghua University, 2999 North Renmin Road, Shanghai 201620, China
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17
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Lee SS, Kim JH, Jeong J, Kim SHL, Koh RH, Kim I, Bae S, Lee H, Hwang NS. Sequential growth factor releasing double cryogel system for enhanced bone regeneration. Biomaterials 2020; 257:120223. [DOI: 10.1016/j.biomaterials.2020.120223] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 06/26/2020] [Accepted: 07/03/2020] [Indexed: 12/14/2022]
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18
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Dobrovol’skaya IP, Zavrazhnykh NA, Popryadukhin PV, Kasatkin IA, Popova EN, Ivan’kova EM, Saprykina NN, Yudin VE. Structure and Thermomechanical Properties of Tubes Based on Poly(L-lactide) Microfibers. POLYMER SCIENCE SERIES A 2020. [DOI: 10.1134/s0965545x20040057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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19
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Synthesis of zinc complexes bearing pyridine derivatives and their application of ε-caprolactone and L-Lactide polymerization. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122374] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Deshmukh K, Kovářík T, Křenek T, Docheva D, Stich T, Pola J. Recent advances and future perspectives of sol–gel derived porous bioactive glasses: a review. RSC Adv 2020; 10:33782-33835. [PMID: 35519068 PMCID: PMC9056785 DOI: 10.1039/d0ra04287k] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 09/02/2020] [Indexed: 12/22/2022] Open
Abstract
Sol–gel derived bioactive glasses have been extensively explored as a promising and highly porous scaffold materials for bone tissue regeneration applications owing to their exceptional osteoconductivity, osteostimulation and degradation rates.
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Affiliation(s)
- Kalim Deshmukh
- New Technologies – Research Center
- University of West Bohemia
- Plzeň
- Czech Republic
| | - Tomáš Kovářík
- New Technologies – Research Center
- University of West Bohemia
- Plzeň
- Czech Republic
| | - Tomáš Křenek
- New Technologies – Research Center
- University of West Bohemia
- Plzeň
- Czech Republic
| | - Denitsa Docheva
- Experimental Trauma Surgery
- Department of Trauma Surgery
- University Regensburg Medical Centre
- Regensburg
- Germany
| | - Theresia Stich
- Experimental Trauma Surgery
- Department of Trauma Surgery
- University Regensburg Medical Centre
- Regensburg
- Germany
| | - Josef Pola
- New Technologies – Research Center
- University of West Bohemia
- Plzeň
- Czech Republic
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21
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Gaspar D, Peixoto R, De Pieri A, Striegl B, Zeugolis DI, Raghunath M. Local pharmacological induction of angiogenesis: Drugs for cells and cells as drugs. Adv Drug Deliv Rev 2019; 146:126-154. [PMID: 31226398 DOI: 10.1016/j.addr.2019.06.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 05/12/2019] [Accepted: 06/16/2019] [Indexed: 12/12/2022]
Abstract
The past decades have seen significant advances in pro-angiogenic strategies based on delivery of molecules and cells for conditions such as coronary artery disease, critical limb ischemia and stroke. Currently, three major strategies are evolving. Firstly, various pharmacological agents (growth factors, interleukins, small molecules, DNA/RNA) are locally applied at the ischemic region. Secondly, preparations of living cells with considerable bandwidth of tissue origin, differentiation state and preconditioning are delivered locally, rarely systemically. Thirdly, based on the notion, that cellular effects can be attributed mostly to factors secreted in situ, the cellular secretome (conditioned media, exosomes) has come into the spotlight. We review these three strategies to achieve (neo)angiogenesis in ischemic tissue with focus on the angiogenic mechanisms they tackle, such as transcription cascades, specific signalling steps and cellular gases. We also include cancer-therapy relevant lymphangiogenesis, and shall seek to explain why there are often conflicting data between in vitro and in vivo. The lion's share of data encompassing all three approaches comes from experimental animal work and we shall highlight common technical obstacles in the delivery of therapeutic molecules, cells, and secretome. This plethora of preclinical data contrasts with a dearth of clinical studies. A lack of adequate delivery vehicles and standardised assessment of clinical outcomes might play a role here, as well as regulatory, IP, and manufacturing constraints of candidate compounds; in addition, completed clinical trials have yet to reveal a successful and efficacious strategy. As the biology of angiogenesis is understood well enough for clinical purposes, it will be a matter of time to achieve success for well-stratified patients, and most probably with a combination of compounds.
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Affiliation(s)
- Diana Gaspar
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland; Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - Rita Peixoto
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland; Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - Andrea De Pieri
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland; Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland; Proxy Biomedical Ltd., Coilleach, Spiddal, Galway, Ireland
| | - Britta Striegl
- Competence Centre Tissue Engineering for Drug Development (TEDD), Centre for Cell Biology & Tissue Engineering, Institute for Chemistry and Biotechnology, Zurich University of Applied Sciences, Zurich, Switzerland
| | - Dimitrios I Zeugolis
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland; Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - Michael Raghunath
- Competence Centre Tissue Engineering for Drug Development (TEDD), Centre for Cell Biology & Tissue Engineering, Institute for Chemistry and Biotechnology, Zurich University of Applied Sciences, Zurich, Switzerland.
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22
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Navarro-Requena C, Pérez-Amodio S, Castaño O, Engel E. Wound healing-promoting effects stimulated by extracellular calcium and calcium-releasing nanoparticles on dermal fibroblasts. NANOTECHNOLOGY 2018; 29:395102. [PMID: 30039802 DOI: 10.1088/1361-6528/aad01f] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Extracellular calcium has been proved to influence the healing process of injuries and could be used as a novel therapy for skin wound healing. However, a better understanding of its effect, together with a system to obtain a controlled release is needed. In this study, we examined whether the ionic dissolution of the calcium-phosphate-based ormoglass nanoparticles coded SG5 may produce a similar stimulating effect as extracellular calcium (from CaCl2) on rat dermal fibroblast in vitro. Cells were cultured in the presence of medium containing different calcium concentrations, normally ranging from 0.1 to 3.5 mM Ca2+. A concentration of 3.5 mM of CaCl2 increased metabolic activity, in vitro wound closure, matrix metalloproteinases (MMP) activity, collagen synthesis and cytokine expression, and reduced cell contraction capacity. Interestingly, the levels of migration and contraction capacity measured followed a dose-dependent behavior. In addition, media conditioned with SG5 stimulated the same activities as media conditioned with CaCl2, but undesired effects in chronic wound healing such as inflammatory factor expression and MMP activity were reduced compared to the equivalent CaCl2 concentration. In summary, calcium-releasing particles such as SG5 are potential biological-free biostimulators to be applied in dressings for chronic wound healing.
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Affiliation(s)
- Claudia Navarro-Requena
- Biomaterials for Regenerative Therapies. Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, Baldiri Reixac 10-12, E-08028 Barcelona Spain. Centro de Investigación Biomédica en Red en Bioingeniería Biomateriales y Nanomedicina (CIBER-BBN) E-28029 Madrid, Spain. Materials Science and Metallurgical Engineering, EEBE, Universitat Politècnica de Catalunya (UPC), C/ Eduard Maristany 10-14, 08019 Barcelona, Spain
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23
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Xu X, Lu Y, Li S, Guo S, He M, Luo K, Lin J. Copper-modified Ti6Al4V alloy fabricated by selective laser melting with pro-angiogenic and anti-inflammatory properties for potential guided bone regeneration applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 90:198-210. [DOI: 10.1016/j.msec.2018.04.046] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 02/11/2018] [Accepted: 04/16/2018] [Indexed: 12/11/2022]
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24
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Xu L, Tong G, Song Q, Zhu C, Zhang H, Shi J, Zhang Z. Enhanced Intracellular Ca 2+ Nanogenerator for Tumor-Specific Synergistic Therapy via Disruption of Mitochondrial Ca 2+ Homeostasis and Photothermal Therapy. ACS NANO 2018; 12:6806-6818. [PMID: 29966081 DOI: 10.1021/acsnano.8b02034] [Citation(s) in RCA: 101] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Breast cancer therapy has always been a hard but urgent issue. Disruption of mitochondrial Ca2+ homeostasis has been reported as an effective antitumor strategy, while how to contribute to mitochondrial Ca2+ overload effectively is a critical issue. To solve this issue, we designed and engineered a dual enhanced Ca2+ nanogenerator (DECaNG), which can induce elevation of intracellular Ca2+ through the following three ways: Calcium phosphate (CaP)-doped hollow mesoporous copper sulfide was the basic Ca2+ nanogenerator to generate Ca2+ directly and persistently in the lysosomes (low pH). Near-infrared light radiation (NIR, such as 808 nm laser) can accelerate Ca2+ generation from the basic Ca2+ nanogenerator by disturbing the crystal lattice of hollow mesoporous copper sulfide via NIR-induced heat. Curcumin can facilitate Ca2+ release from the endoplasmic reticulum to cytoplasm and inhibit expelling of Ca2+ in cytoplasm through the cytoplasmic membrane. The in vitro study showed that DECaNG could produce a large amount of Ca2+ directly and persistently to flow to mitochondria, leading to upregulation of Caspase-3, cytochrome c, and downregulation of Bcl-2 and ATP followed by cell apoptosis. In addition, DECaNG had an outstanding photothermal effect. Interestingly, it was found that DECaNG exerted a stronger photothermal effect at lower pH due to the super small nanoparticles effect, thus enhancing photothermal therapy. In the in vivo study, the nanoplatform had good tumor targeting and treatment efficacy via a combination of disruption of mitochondrial Ca2+ homeostasis and photothermal therapy. The metabolism of CaNG was sped up through disintegration of CaNG into smaller nanoparticles, reducing the retention time of the nanoplatform in vivo. Therefore, DECaNG can be a promising drug delivery system for breast cancer therapy.
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Affiliation(s)
- Lihua Xu
- School of Pharmaceutical Sciences , Zhengzhou University , Zhengzhou , People's Republic of China
- Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases, Henan Province , People's Republic of China
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province , Zhengzhou , China
| | - Guihua Tong
- School of Pharmaceutical Sciences , Zhengzhou University , Zhengzhou , People's Republic of China
| | - Qiaoli Song
- School of Pharmaceutical Sciences , Zhengzhou University , Zhengzhou , People's Republic of China
| | - Chunyu Zhu
- School of Pharmaceutical Sciences , Zhengzhou University , Zhengzhou , People's Republic of China
| | - Hongling Zhang
- School of Pharmaceutical Sciences , Zhengzhou University , Zhengzhou , People's Republic of China
- Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases, Henan Province , People's Republic of China
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province , Zhengzhou , China
| | - Jinjin Shi
- School of Pharmaceutical Sciences , Zhengzhou University , Zhengzhou , People's Republic of China
- Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases, Henan Province , People's Republic of China
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province , Zhengzhou , China
| | - Zhenzhong Zhang
- School of Pharmaceutical Sciences , Zhengzhou University , Zhengzhou , People's Republic of China
- Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases, Henan Province , People's Republic of China
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province , Zhengzhou , China
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25
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Chen YW, Shen YF, Ho CC, Yu J, Wu YHA, Wang K, Shih CT, Shie MY. Osteogenic and angiogenic potentials of the cell-laden hydrogel/mussel-inspired calcium silicate complex hierarchical porous scaffold fabricated by 3D bioprinting. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 91:679-687. [PMID: 30033302 DOI: 10.1016/j.msec.2018.06.005] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 05/15/2018] [Accepted: 06/07/2018] [Indexed: 11/29/2022]
Abstract
3D printing has been popularly used in the bone tissue engineering, as many of the biomaterials for this field of study can be prepared for and produced from this additive manufacturing technique. In this study, we strategized a solvent-free processing to fabricate the polydopamine-modified calcium silicate (PDACS)/poly-caprolactone (PCL) scaffold with Wharton's jelly mesenchymal stem cells (WJMSCs) incorporated with human umbilical vein endothelial cells (HUVEC)-laden hydrogel. The PDACS/PCL/hydrogel 3D scaffold yielded a Young's modulus of the 3D scaffolds as high as 75 MPa. In addition, the vascular morphogenesis and cellular behaviors regulated by our hybrid scaffolds were also intricately evaluated. Furthermore, the HUVEC in the bioink exhibited higher levels of angiogenic biomarkers and showed potential for the formation of complex vascular networks. Higher levels of bone formation proteins were also observed in our composites. Such a hybrid of synthetic materials with cell constituents not only enhances osteogenesis but also stimulates vessel network development in angiogenesis, presenting the fact that 3D printing can be further applied in improving bone tissue regeneration in numerous aspects. We believe that this method may serve as a useful and effective approach for the regeneration of defective complex hard tissues in deep bone structures.
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Affiliation(s)
- Yi-Wen Chen
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung City, Taiwan; 3D Printing Research Institute, Asia University, Taichung City, Taiwan
| | - Yu-Fang Shen
- 3D Printing Research Institute, Asia University, Taichung City, Taiwan; Department of Bioinformatics and Medical Engineering, Asia University, Taichung City, Taiwan
| | - Chia-Che Ho
- 3D Printing Medical Research Center, China Medical University Hospital, Taichung City, Taiwan
| | - Joyce Yu
- 3D Printing Medical Research Center, China Medical University Hospital, Taichung City, Taiwan; School of Medicine, China Medical University, Taichung City, Taiwan
| | - Yuan-Haw Andrew Wu
- 3D Printing Medical Research Center, China Medical University Hospital, Taichung City, Taiwan; School of Medicine, China Medical University, Taichung City, Taiwan
| | - Kan Wang
- Georgia Tech Manufacturing Institute, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Cheng-Ting Shih
- 3D Printing Medical Research Center, China Medical University Hospital, Taichung City, Taiwan
| | - Ming-You Shie
- Department of Bioinformatics and Medical Engineering, Asia University, Taichung City, Taiwan; 3D Printing Medical Research Center, China Medical University Hospital, Taichung City, Taiwan; School of Dentistry, China Medical University, Taichung City, Taiwan.
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26
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Navarro-Requena C, Weaver JD, Clark AY, Clift DA, Pérez-Amodio S, Castaño Ó, Zhou DW, García AJ, Engel E. PEG hydrogel containing calcium-releasing particles and mesenchymal stromal cells promote vessel maturation. Acta Biomater 2018; 67:53-65. [PMID: 29246650 PMCID: PMC6534820 DOI: 10.1016/j.actbio.2017.12.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 11/23/2017] [Accepted: 12/05/2017] [Indexed: 12/20/2022]
Abstract
The use of human mesenchymal stromal cells (hMSC) for treating diseased tissues with poor vascularization has received significant attention, but low cell survival has hampered its translation to the clinic. Bioglasses and glass-ceramics have also been suggested as therapeutic agents for stimulating angiogenesis in soft tissues, but these effects need further evaluation in vivo. In this study, calcium-releasing particles and hMSC were combined within a hydrogel to examine their vasculogenic potential in vitro and in vivo. The particles provided sustained calcium release and showed proangiogenic stimulation in a chorioallantoic membrane (CAM) assay. The number of hMSC encapsulated in a degradable RGD-functionalized PEG hydrogel containing particles remained constant over time and IGF-1 release was increased. When implanted in the epidydimal fat pad of immunocompromised mice, this composite material improved cell survival and stimulated vessel formation and maturation. Thus, the combination of hMSC and calcium-releasing glass-ceramics represents a new strategy to achieve vessel stabilization, a key factor in the revascularization of ischemic tissues. STATEMENT OF SIGNIFICANCE Increasing blood vessel formation in diseased tissues with poor vascularization is a current clinical challenge. Cell therapy using human mesenchymal stem cells has received considerable interest, but low cell survival has hampered its translation to the clinic. Bioglasses and glass-ceramics have been explored as therapeutic agents for stimulating angiogenesis in soft tissues, but these effects need further evaluation in vivo. By incorporating both human mesenchymal stem cells and glass-ceramic particles in an implantable hydrogel, this study provides insights into the vasculogenic potential in soft tissues of the combined strategies. Enhancement of vessel formation and maturation supports further investigation of this strategy.
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Affiliation(s)
- Claudia Navarro-Requena
- Biomaterials for Regenerative Therapies. Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, Baldiri Reixac 10-12, Barcelona 08028, Spain; CIBER en Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, Zaragoza 50018, Spain; Materials Science and Metallurgical Engineering, EEBE, Universitat Politècnica de Catalunya (UPC), Barcelona 08028, Spain
| | - Jessica D Weaver
- Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA; Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Amy Y Clark
- Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA; Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Douglas A Clift
- Biomaterials for Regenerative Therapies. Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, Baldiri Reixac 10-12, Barcelona 08028, Spain
| | - Soledad Pérez-Amodio
- Biomaterials for Regenerative Therapies. Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, Baldiri Reixac 10-12, Barcelona 08028, Spain; CIBER en Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, Zaragoza 50018, Spain; Materials Science and Metallurgical Engineering, EEBE, Universitat Politècnica de Catalunya (UPC), Barcelona 08028, Spain
| | - Óscar Castaño
- Electronics and Biomedical Engineering, Universitat de Barcelona (UB), Barcelona 08028, Spain; Biomaterials for Regenerative Therapies. Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, Baldiri Reixac 10-12, Barcelona 08028, Spain; Institute of Nanoscience and Nanotechnology, Universitat de Barcelona (UB), Barcelona 08028, Spain; CIBER en Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, Zaragoza 50018, Spain
| | - Dennis W Zhou
- Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA; Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Andrés J García
- Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA; Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Elisabeth Engel
- Biomaterials for Regenerative Therapies. Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, Baldiri Reixac 10-12, Barcelona 08028, Spain; CIBER en Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, Zaragoza 50018, Spain; Materials Science and Metallurgical Engineering, EEBE, Universitat Politècnica de Catalunya (UPC), Barcelona 08028, Spain.
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27
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Huang TW, Su RR, Lin YC, Lai HY, Yang CY, Senadi GC, Lai YC, Chiang MY, Chen HY. Improvement in aluminum complexes bearing a Schiff base in ring-opening polymerization of ε-caprolactone: the synergy of the N,S-Schiff base in a five-membered ring aluminum system. Dalton Trans 2018; 47:15565-15573. [DOI: 10.1039/c8dt03285h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
A series of five-membered ring aluminum complexes bearing thiol-Schiff base ligands were synthesized, and their application in the ring-opening polymerization of ε-caprolactone (CL) was investigated.
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Affiliation(s)
- Ting-Wei Huang
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
| | - Rou-Rong Su
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
| | - Yi-Chen Lin
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
| | - Hsin-Yu Lai
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
| | - Chien-Yi Yang
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
| | - Gopal Chandru Senadi
- Department of Chemistry
- SRM Institute of Science and Technology
- Chennai – 603203
- India
| | - Yi-Chun Lai
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
| | - Michael Y. Chiang
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
- Department of Chemistry
| | - Hsuan-Ying Chen
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
- Department of Chemistry
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28
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Balasubramanian P, Detsch R, Esteban-Tejeda L, Grünewald A, Moya JS, Boccaccini AR. Influence of dissolution products of a novel Ca-enriched silicate bioactive glass-ceramic on VEGF release from bone marrow stromal cells. BIOMEDICAL GLASSES 2017. [DOI: 10.1515/bglass-2017-0010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractThis study evaluated the influence of ionic dissolution products of a novel Ca-enriched silicate bioactive glass compared to commercial available hydroxyapaptite samples (Endobonr) on cell activity and vascular endothelial growth factor (VEGF) release in vitro. Bone marrow stromal cells (ST-2) were cultivated with the supernatant of granules of different sizes and at different concentrations (0-1 wt/vol % of granules) for 48 h. In addition to in vitro studies, Ca-ion release from all as cell morphology observation revealed no cytotoxic effect of the released products from all tested materials. It was found that supernatants from granules in concentrations of 1 wt/vol %enhanced the VEGF release from ST2 cells, which is important as a marker of the vascularisation ability of the glass during the bone healing process.
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29
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Xie Z, Weng S, Li H, Yu X, Lu S, Huang K, Wu Z, Bai B, Boodhun V, Yang L. Teriparatide promotes healing of critical size femur defect through accelerating angiogenesis and degradation of β-TCP in OVX osteoporotic rat model. Biomed Pharmacother 2017; 96:960-967. [DOI: 10.1016/j.biopha.2017.11.141] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 11/21/2017] [Accepted: 11/27/2017] [Indexed: 02/06/2023] Open
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30
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Wang S, Li Y, Zhao R, Jin T, Zhang L, Li X. Chitosan surface modified electrospun poly(ε-caprolactone)/carbon nanotube composite fibers with enhanced mechanical, cell proliferation and antibacterial properties. Int J Biol Macromol 2017. [DOI: 10.1016/j.ijbiomac.2017.06.044] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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31
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Sachot N, Roguska A, Planell JA, Lewandowska M, Engel E, Castaño O. Fast-degrading PLA/ORMOGLASS fibrous composite scaffold leads to a calcium-rich angiogenic environment. Int J Nanomedicine 2017; 12:4901-4919. [PMID: 28744124 PMCID: PMC5513849 DOI: 10.2147/ijn.s135806] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
The success of scaffold implantation in acellular tissue engineering approaches relies on the ability of the material to interact properly with the biological environment. This behavior mainly depends on the design of the graft surface and, more precisely, on its capacity to biodegrade in a well-defined manner (nature of ions released, surface-to-volume ratio, dissolution profile of this release, rate of material resorption, and preservation of mechanical properties). The assessment of the biological behavior of temporary templates is therefore very important in tissue engineering, especially for composites, which usually exhibit complicated degradation behavior. Here, blended polylactic acid (PLA) calcium phosphate ORMOGLASS (organically modified glass) nanofibrous mats have been incubated up to 4 weeks in physiological simulated conditions, and their morphological, topographical, and chemical changes have been investigated. The results showed that a significant loss of inorganic phase occurred at the beginning of the immersion and the ORMOGLASS maintained a stable composition afterward throughout the degradation period. As a whole, the nanostructured scaffolds underwent fast and heterogeneous degradation. This study reveals that an angiogenic calcium-rich environment can be achieved through fast-degrading ORMOGLASS/PLA blended fibers, which seems to be an excellent alternative for guided bone regeneration.
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Affiliation(s)
- Nadège Sachot
- Biomaterials for Regenerative Therapies, Institute for Bioengineering of Catalonia (IBEC), Barcelona
- CIBER en Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, Zaragoza, Spain
| | - Agata Roguska
- Faculty of Materials Science and Engineering, Warsaw University of Technology, Warsaw, Poland
| | - Josep Anton Planell
- Biomaterials for Regenerative Therapies, Institute for Bioengineering of Catalonia (IBEC), Barcelona
- CIBER en Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, Zaragoza, Spain
| | - Malgorzata Lewandowska
- Faculty of Materials Science and Engineering, Warsaw University of Technology, Warsaw, Poland
| | - Elisabeth Engel
- Biomaterials for Regenerative Therapies, Institute for Bioengineering of Catalonia (IBEC), Barcelona
- CIBER en Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, Zaragoza, Spain
- Department of Materials Science and Metallurgical Engineering, Universitat Politècnica de Catalunya (UPC)
| | - Oscar Castaño
- Biomaterials for Regenerative Therapies, Institute for Bioengineering of Catalonia (IBEC), Barcelona
- CIBER en Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, Zaragoza, Spain
- Department of Materials Science and Physical Chemistry, Universitat de Barcelona (UB)
- Department of Engineerings: Electronics, Universitat de Barcelona, Barcelona, Spain
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32
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Kosuru SR, Sun TH, Wang LF, Vandavasi JK, Lu WY, Lai YC, Hsu SCN, Chiang MY, Chen HY. Enhanced Catalytic Activity of Aluminum Complexes for the Ring-Opening Polymerization of ε-Caprolactone. Inorg Chem 2017; 56:7998-8006. [DOI: 10.1021/acs.inorgchem.7b00763] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
| | | | | | | | | | | | | | - Michael Y. Chiang
- Department of Chemistry, National Sun Yat-Sen University, Kaohsiung 804, Taiwan, R.O.C
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Mechanical characteristic and biological behaviour of implanted and restorative bioglasses used in medicine and dentistry: A systematic review. Dent Mater 2017; 33:702-712. [DOI: 10.1016/j.dental.2017.03.017] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 02/16/2017] [Accepted: 03/29/2017] [Indexed: 12/31/2022]
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34
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Lee CL, Lin YF, Jiang MT, Lu WY, Vandavasi JK, Wang LF, Lai YC, Chiang MY, Chen HY. Improvement in Aluminum Complexes Bearing Schiff Bases in Ring-Opening Polymerization of ε-Caprolactone: A Five-Membered-Ring System. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00068] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Chieh-Ling Lee
- Department
of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, Republic of China
| | - Ya-Fan Lin
- Department
of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, Republic of China
- Department
of Fragrance and Cosmetic Science, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, Republic of China
| | - Man-Ting Jiang
- Department
of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, Republic of China
| | - Wei-Yi Lu
- Department
of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, Republic of China
| | | | - Li-Fang Wang
- Department
of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, Republic of China
| | - Yi-Chun Lai
- Department
of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, Republic of China
| | - Michael Y. Chiang
- Department
of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, Republic of China
- Department
of Chemistry, National Sun Yat-sen University, Kaohsiung 80424, Taiwan, Republic of China
| | - Hsuan-Ying Chen
- Department
of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, Republic of China
- Department
of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan, Republic of China
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35
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Oliveira H, Catros S, Castano O, Rey S, Siadous R, Clift D, Marti-Munoz J, Batista M, Bareille R, Planell J, Engel E, Amédée J. The proangiogenic potential of a novel calcium releasing composite biomaterial: Orthotopic in vivo evaluation. Acta Biomater 2017; 54:377-385. [PMID: 28242456 DOI: 10.1016/j.actbio.2017.02.039] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 02/19/2017] [Accepted: 02/22/2017] [Indexed: 10/20/2022]
Abstract
Insufficient angiogenesis remains a major hurdle in current bone tissue engineering strategies. An extensive body of work has focused on the use of angiogenic factors or endothelial progenitor cells. However, these approaches are inherently complex, in terms of regulatory and methodologic implementation, and present a high cost. We have recently demonstrate the potential of electrospun poly(lactic acid) (PLA) fiber-based membranes, containing calcium phosphate (CaP) ormoglass particles, to elicit angiogenesis in vivo, in a subcutaneous model in mice. Here we have devised an injectable composite, containing CaP glass-ceramic particles, dispersed within a (Hydroxypropyl)methyl cellulose (HPMC) matrix, with the capacity to release calcium in a more sustained fashion. We show that by tuning the release of calcium in vivo, in a rat bone defect model, we could improve both bone formation and increase angiogenesis. The bone regeneration kinetics was dependent on the Ca2+ release rate, with the faster Ca2+ release composite gel showing improved bone repair at 3weeks, in relation to control. In the same line, improved angiogenesis could be observed for the same gel formulation at 6weeks post implantation. This methodology allows to integrate two fundamental processes for bone tissue regeneration while using a simple, cost effective, and safe approach. STATEMENT OF SIGNIFICANCE In current bone tissue engineering approaches the achievement of sufficient angiogenesis, during tissue regeneration, is a major limitation in order to attain full tissue functionality. Recently, we have shown that calcium ions, released by the degradation of calcium phosphate ormoglasses (CaP), are effective angiogenic promoters, in both in vitro and in a subcutaneous implantation model. Here, we devised an injectable composite, containing CaP glass-ceramic particles, dispersed within a HPMC matrix, enabling the release of calcium in a more sustained fashion. We show that by tuning the release of calcium in vivo, in a rat bone defect model, we could improve both bone formation and increase angiogenesis. This simple and cost effective approach holds great promise to translate to the clinics.
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36
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Kim JJ, El-Fiqi A, Kim HW. Synergetic Cues of Bioactive Nanoparticles and Nanofibrous Structure in Bone Scaffolds to Stimulate Osteogenesis and Angiogenesis. ACS APPLIED MATERIALS & INTERFACES 2017; 9:2059-2073. [PMID: 28029246 DOI: 10.1021/acsami.6b12089] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Providing a nanotopological physical cue in concert with a bioactive chemical signal within 3D scaffolds, while it being considered a promising approach for bone regeneration, has yet to be explored. Here, we develop 3D porous scaffolds that are networked to be a nanofibrous structure and incorporated with bioactive glass nanoparticles (BGn) to tackle this issue. The presence of BGn and nanofibrous structure (BGn + nanofibrous) substantially increased the surface area, hydro-affinity and protein loading capacity of scaffolds. In particular, the BGn released Si and Ca ions to the levels known to be biologically effective, offering the bone scaffold an ability to deliver therapeutic ions. The mesenchymal stem cells (MSCs) from rats exhibited significantly accelerated adhesion events including cell anchorage, cytoskeletal extensions, and the expression of adhesion signaling molecules on the BGn/nanofibrous scaffolds. The cells gained a more rapid proliferation and migration (penetration) ability over 2 weeks within the BGn + nanofibrous scaffolds than within either nanofibrous or BGn scaffolds. The osteogenesis of MSCs, as confirmed by the expressions of bone-associated genes and proteins, as well as the cellular mineralization was significantly stimulated by the BGn and nanofibrous topology in a synergistic manner. The behaviors of endothelial cells (HUVECs) including cell migration and tubule networking were also enhanced when influenced by the BGn and nanofibrous scaffolds (but more by BGn than by nanofiber). A subcutaneous tissue implantation of the scaffolds further evidenced the in vivo stimulation of neo-blood vessel formation by the BGn + nanofibrous cues, suggesting the possible promising role in bone regeneration. Taken together, the therapeutic ions and nanofibrous topology implemented within 3D scaffolds are considered to play synergistic actions in osteogenesis and angiogenesis, implying the potential usefulness of the BGn + nanofibrous scaffolds for bone tissue engineering.
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Affiliation(s)
- Jung-Ju Kim
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University , Cheonan 330-714, Republic of Korea
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University , Cheonan 330-714, Republic of Korea
| | - Ahmed El-Fiqi
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University , Cheonan 330-714, Republic of Korea
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University , Cheonan 330-714, Republic of Korea
| | - Hae-Won Kim
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University , Cheonan 330-714, Republic of Korea
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University , Cheonan 330-714, Republic of Korea
- Department of Biomaterials Science, College of Dentistry, Dankook University , Cheonan 330-714, Republic of Korea
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37
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Hsu CY, Tseng HC, Vandavasi JK, Lu WY, Wang LF, Chiang MY, Lai YC, Chen HY, Chen HY. Investigation of the dinuclear effect of aluminum complexes in the ring-opening polymerization of ε-caprolactone. RSC Adv 2017. [DOI: 10.1039/c7ra02136d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Al complexes bearing hydrazine-bridging Schiff base ligands showed the best catalytic activity, approximately 3- to 11-fold higher than that of dinuclear Al complexes bearing Salen ligands and mononuclear Al complexes bearing Schiff base ligands.
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Affiliation(s)
- Chiao-Yin Hsu
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
| | - Hsi-Ching Tseng
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
| | | | - Wei-Yi Lu
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
| | - Li-Fang Wang
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
| | - Michael Y. Chiang
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
- Department of Chemistry
| | - Yi-Chun Lai
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
| | - Hsing-Yin Chen
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
| | - Hsuan-Ying Chen
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
- Department of Medical Research
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38
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Yoon JY, Kim JJ, El-Fiqi A, Jang JH, Kim HW. Ultrahigh protein adsorption capacity and sustained release of nanocomposite scaffolds: implication for growth factor delivery systems. RSC Adv 2017. [DOI: 10.1039/c6ra28841c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Nanocomposite scaffolds that can load growth factors effectively and release them sustainably are developed for the regeneration of tissues.
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Affiliation(s)
- Ji-Young Yoon
- Institute of Tissue Regeneration Engineering (ITREN)
- Dankook University
- Cheonan 330-714
- Republic of Korea
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine
| | - Jung-Ju Kim
- Institute of Tissue Regeneration Engineering (ITREN)
- Dankook University
- Cheonan 330-714
- Republic of Korea
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine
| | - Ahmed El-Fiqi
- Institute of Tissue Regeneration Engineering (ITREN)
- Dankook University
- Cheonan 330-714
- Republic of Korea
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine
| | - Jun-Hyeog Jang
- Department of Biochemistry
- Inha University School of Medicine
- Incheon 400-712
- Republic of Korea
| | - Hae-Won Kim
- Institute of Tissue Regeneration Engineering (ITREN)
- Dankook University
- Cheonan 330-714
- Republic of Korea
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine
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Mahapatra C, Singh RK, Kim JJ, Patel KD, Perez RA, Jang JH, Kim HW. Osteopromoting Reservoir of Stem Cells: Bioactive Mesoporous Nanocarrier/Collagen Gel through Slow-Releasing FGF18 and the Activated BMP Signaling. ACS APPLIED MATERIALS & INTERFACES 2016; 8:27573-27584. [PMID: 27649064 DOI: 10.1021/acsami.6b09769] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Providing an osteogenic stimulatory environment is a key strategy to construct stem cell-based bone-equivalent tissues. Here we design a stem cell delivering gel matrix made of collagen (Col) with bioactive glass nanocarriers (BGn) that incorporate osteogenic signaling molecule, fibroblast growth factor 18 (FGF18), a reservoir considered to cultivate and promote osteogenesis of mesenchymal stem cells (MSCs). The presence of BGn in the gel was shown to enhance the osteogenic differentiation of MSCs, possibly due to the therapeutic role of ions released. The mesoporous nature of BGn was effective in loading FGF18 at large quantity, and the FGF18 release from the BGn-Col gel matrix was highly sustainable with almost a zero-order kinetics, over 4 weeks as confirmed by the green fluorescence protein signal change. The released FGF18 was effective in accelerating osteogenesis (alkaline phosphatase activity and bone related gene expressions) and bone matrix formation (osteopontin, bone sialoprotein, and osteocalcin production) of MSCs. This was attributed to the bone morphogenetic protein (BMP) signaling pathway, where the FGF18 release stimulated the endogenous secretion of BMP2 and the downstream signal Smad1/5/8. Taken together, the FGF18-BGn/Col gel is considered an excellent osteopromoting depot to support and signal MSCs for bone tissue engineering.
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Affiliation(s)
- Chinmaya Mahapatra
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University , Cheonan 330-714, South Korea
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University , Cheonan 330-714, South Korea
| | - Rajendra K Singh
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University , Cheonan 330-714, South Korea
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University , Cheonan 330-714, South Korea
| | - Jung-Ju Kim
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University , Cheonan 330-714, South Korea
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University , Cheonan 330-714, South Korea
| | - Kapil D Patel
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University , Cheonan 330-714, South Korea
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University , Cheonan 330-714, South Korea
| | - Roman A Perez
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University , Cheonan 330-714, South Korea
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University , Cheonan 330-714, South Korea
| | - Jun-Hyeog Jang
- Department of Biochemistry, Inha University School of Medicine , Incheon 22212, Republic of Korea
| | - Hae-Won Kim
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University , Cheonan 330-714, South Korea
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University , Cheonan 330-714, South Korea
- Department of Biomaterials Science, School of Dentistry, Dankook University , Cheonan 330-714, South Korea
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Feng G, Zheng K, Song D, Xu K, Huang D, Zhang Y, Cao P, Shen S, Zhang J, Feng X, Zhang D. SIRT1 was involved in TNF-α-promoted osteogenic differentiation of human DPSCs through Wnt/β-catenin signal. In Vitro Cell Dev Biol Anim 2016; 52:1001-1011. [PMID: 27530621 DOI: 10.1007/s11626-016-0070-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2016] [Accepted: 06/27/2016] [Indexed: 02/06/2023]
Abstract
Dental pulp stem cells (DPSCs), as one type of mesenchymal stem cells (MSCs), have the capability of self-renewal and differentiating along the various directions, including osteogenic, chondrogenic, neurogenic, and adipogenic. We previously study and found that tumor necrosis factor-α (TNF-α) promoted osteogenic differentiation of human DPSCs via the Wnt/β-catenin signaling pathway in low concentration while inhibited that in high concentration. In the abovementioned process, we found that sirtuin-1 (SIRT1) had the same change compared with the characteristic protein of bone formation, such as bone morphogenetic protein 2 (BMP2), runt-related transcription factor 2 (Runx2), and collagen I (COL1). We asked whether SIRT1 could regulate osteogenesis of DPSCs. In inflammation microenvironment constructed by TNF-α, we tested the expression changing of SIRT1 and analyzed the function of SIRT1 on osteogenic differentiation of DPSCs. SIRT1 deacetylated β-catenin, and then promote its accumulation in the nucleus. Accumulated β-catenin can lead to transcription of osteogenic characteristic genes. Using the activator of SIRT1, resveratrol, could promote the above-mentioned process of osteogenic differentiation. SIRT1 could regulate osteogenesis of DPSCs through Wnt/β-catenin signal. SIRT1, as a regulator of differentiation of DPSCs, may be a new target for cell-based therapy in oral diseases and other regenerative medicine.
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Affiliation(s)
- Guijuan Feng
- Department of Stomatology, Affiliated Hospital of Nantong University, Nantong, 226001, China
| | - Ke Zheng
- Department of Stomatology, Affiliated Hospital of Nantong University, Nantong, 226001, China
| | - Donghui Song
- Department of Stomatology, Affiliated Hospital of Nantong University, Nantong, 226001, China
| | - Ke Xu
- Department of Stomatology, Affiliated Hospital of Nantong University, Nantong, 226001, China
| | - Dan Huang
- Department of Stomatology, Affiliated Hospital of Nantong University, Nantong, 226001, China
| | - Ye Zhang
- Department of Stomatology, Affiliated Hospital of Nantong University, Nantong, 226001, China
| | - Peipei Cao
- Department of Stomatology, Affiliated Hospital of Nantong University, Nantong, 226001, China
| | - Shuling Shen
- Department of Stomatology, Affiliated Hospital of Nantong University, Nantong, 226001, China
| | - Jinlong Zhang
- Department of Spine Surgery, The Second Affiliated Hospital of Nantong University, Nantong, 226001, China
| | - Xingmei Feng
- Department of Stomatology, Affiliated Hospital of Nantong University, Nantong, 226001, China.
| | - Dongmei Zhang
- Department of Pathogen Biology, Medical College, Nantong University, Nantong, 226001, China.
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Saghiri MA, Asatourian A, Garcia-Godoy F, Sheibani N. The role of angiogenesis in implant dentistry part II: The effect of bone-grafting and barrier membrane materials on angiogenesis. Med Oral Patol Oral Cir Bucal 2016; 21:e526-37. [PMID: 27031074 PMCID: PMC4920468 DOI: 10.4317/medoral.21200] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2015] [Accepted: 02/19/2016] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND In implant dentistry, bone substitute materials and barrier membranes are used in different treatments including guided bone regeneration (GBR), socket preservation, alveolar ridge augmentation, maxillary sinus elevation, and filling bony defects around the inserted dental implant. One of the most important factors in prognosis of treatments using these materials is the growth of new blood vessels in applied areas. Present review was performed to evaluate the effect of the bone-grafting and barrier membrane materials on angiogenesis events. MATERIAL AND METHODS An electronic search was performed in PubMed, MEDLINE, and EMBASE databases via OVID using the keywords mentioned in the PubMed and MeSH headings regarding the role of angiogenesis in implant dentistry from January 2000-April 2014. RESULTS Of the 5,622 articles identified in our initial search results, only 33 met the inclusion criteria set for this review. Among bone substitute materials the autogenous bone-grafts, and among the barrier membranes the collagenous membranes, had the highest angiogenic potentials. Other bone-grafting materials or membranes were mostly used with pro-angiogenic factors to enhance their angiogenic properties. CONCLUSIONS Angiogenesis is one of the key factors, which plays a critical role in success rate of GBR technique and is seriously considered in manufacturing bone-grafting and barrier membrane materials. However, there is still lack of clinical and in-vivo studies addressing the effect of angiogenesis in treatments using bone-grafting and barrier membrane materials.
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Affiliation(s)
- M-A Saghiri
- Departments of Ophthalmology &, Visual Sciences and Biomedical Engineering, University of Wisconsin School of Medicine, and Public health, Madison, WI, USA,
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Roohani-Esfahani SI, No YJ, Lu Z, Ng PY, Chen Y, Shi J, Pavlos NJ, Zreiqat H. A bioceramic with enhanced osteogenic properties to regulate the function of osteoblastic and osteocalastic cells for bone tissue regeneration. Biomed Mater 2016; 11:035018. [DOI: 10.1088/1748-6041/11/3/035018] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Li X, Li Y, Chen X, Li B, Gao B, Ren Z, Han G, Mao C. Optically Monitoring Mineralization and Demineralization on Photoluminescent Bioactive Nanofibers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:3226-3233. [PMID: 27010624 DOI: 10.1021/acs.langmuir.6b00290] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Bone regeneration and scaffold degradation do not usually follow the same rate, representing a daunting challenge in bone repair. Toward this end, we propose to use an external field such as light (in particular, a tissue-penetrating near-infrared light) to precisely monitor the degradation of the mineralized scaffold (demineralization) and the formation of apatite mineral (mineralization). Herein, CaTiO3:Yb(3+),Er(3+)@bioactive glass (CaTiO3:Yb(3+),Er(3+)@BG) nanofibers with upconversion (UC) photoluminescence (PL) were synthesized. Such nanofibers are biocompatible and can emit green and red light under 980 nm excitation. The UC PL intensity is quenched during the bone-like apatite formation on the surface of the nanofibers in simulated body fluid; more mineral formation on the nanofibers induces more rapid optical quenching of the UC PL. Furthermore, the quenched UC PL can recover back to its original magnitude when the apatite on the nanofibers is degraded. Our work suggests that it is possible to optically monitor the apatite mineralization and demineralization on the surface of nanofibers used in bone repair.
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Affiliation(s)
- Xiang Li
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University , Hangzhou 310027, P.R. China
| | - Yangyang Li
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University , Hangzhou 310027, P.R. China
| | - Xiaoyi Chen
- Clinical Research Institute, Zhejiang Provincial People's Hospital , Hangzhou 310014, P.R. China
| | - Binbin Li
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University , Hangzhou 310027, P.R. China
| | - Bo Gao
- Department of Prosthetic Dentistry, Second Affiliated Hospital, College of Medicine, Zhejiang University , Hangzhou 310009, P.R. China
| | - Zhaohui Ren
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University , Hangzhou 310027, P.R. China
| | - Gaorong Han
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University , Hangzhou 310027, P.R. China
| | - Chuanbin Mao
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University , Hangzhou 310027, P.R. China
- Department of Chemistry & Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma , 101 Stephenson Parkway, Norman, Oklahoma 73019-5300, United States
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44
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Tan AW, Liau LL, Chua KH, Ahmad R, Akbar SA, Pingguan-Murphy B. Enhanced in vitro angiogenic behaviour of human umbilical vein endothelial cells on thermally oxidized TiO2 nanofibrous surfaces. Sci Rep 2016; 6:21828. [PMID: 26883761 PMCID: PMC4756327 DOI: 10.1038/srep21828] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Accepted: 02/02/2016] [Indexed: 02/08/2023] Open
Abstract
One of the major challenges in bone grafting is the lack of sufficient bone vascularization. A rapid and stable bone vascularization at an early stage of implantation is essential for optimal functioning of the bone graft. To address this, the ability of in situ TiO2 nanofibrous surfaces fabricated via thermal oxidation method to enhance the angiogenic potential of human umbilical vein endothelial cells (HUVECs) was investigated. The cellular responses of HUVECs on TiO2 nanofibrous surfaces were studied through cell adhesion, cell proliferation, capillary-like tube formation, growth factors secretion (VEGF and BFGF), and angiogenic-endogenic-associated gene (VEGF, VEGFR2, BFGF, PGF, HGF, Ang-1, VWF, PECAM-1 and ENOS) expression analysis after 2 weeks of cell seeding. Our results show that TiO2 nanofibrous surfaces significantly enhanced adhesion, proliferation, formation of capillary-like tube networks and growth factors secretion of HUVECs, as well as leading to higher expression level of all angiogenic-endogenic-associated genes, in comparison to unmodified control surfaces. These beneficial effects suggest the potential use of such surface nanostructures to be utilized as an advantageous interface for bone grafts as they can promote angiogenesis, which improves bone vascularization.
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Affiliation(s)
- Ai Wen Tan
- Department of Biomedical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Ling Ling Liau
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, 50300 Kuala Lumpur, Malaysia
| | - Kien Hui Chua
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, 50300 Kuala Lumpur, Malaysia
| | - Roslina Ahmad
- Department of Mechanical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Sheikh Ali Akbar
- Department of Materials Science and Engineering, The Ohio State University, Columbus, OH 43210, USA
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Sachot N, Castaño O, Oliveira H, Martí-Muñoz J, Roguska A, Amedee J, Lewandowska M, Planell JA, Engel E. A novel hybrid nanofibrous strategy to target progenitor cells for cost-effective in situ angiogenesis. J Mater Chem B 2016; 4:6967-6978. [DOI: 10.1039/c6tb02162j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ti-doped calcium phosphate ormoglasses combined with biodegradable PLA promote an efficient and low-cost angiogenesis by the generation of high Ca2+concentrated interfaces that induce a high yield of tubulogenesis, with the gain in interface–cell interaction and instructivity.
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Affiliation(s)
- N. Sachot
- Biomaterials for Regenerative Therapies
- Institute for Bioengineering of Catalonia (IBEC)
- 08028 Barcelona
- Spain
- CIBER en Bioingeniería
| | - O. Castaño
- Biomaterials for Regenerative Therapies
- Institute for Bioengineering of Catalonia (IBEC)
- 08028 Barcelona
- Spain
- CIBER en Bioingeniería
| | - H. Oliveira
- Inserm U1026
- Tissue Bioengineering
- University of Bordeaux
- 33076 Bordeaux
- France
| | - J. Martí-Muñoz
- Biomaterials for Regenerative Therapies
- Institute for Bioengineering of Catalonia (IBEC)
- 08028 Barcelona
- Spain
- CIBER en Bioingeniería
| | - A. Roguska
- Institute of Physical Chemistry
- Polish Academy of Sciences
- 01-224 Warsaw
- Poland
| | - J. Amedee
- Inserm U1026
- Tissue Bioengineering
- University of Bordeaux
- 33076 Bordeaux
- France
| | - M. Lewandowska
- Faculty of Materials Science and Engineering
- Warsaw University of Technology
- 02-507 Warsaw
- Poland
| | - J. A. Planell
- Biomaterials for Regenerative Therapies
- Institute for Bioengineering of Catalonia (IBEC)
- 08028 Barcelona
- Spain
- CIBER en Bioingeniería
| | - E. Engel
- Biomaterials for Regenerative Therapies
- Institute for Bioengineering of Catalonia (IBEC)
- 08028 Barcelona
- Spain
- CIBER en Bioingeniería
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46
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Cui N, Qian J, Wang J, Ji C, Xu W, Wang H. Preparation and characterization of foamy poly(γ-benzyl-l-glutamate-co-l-phenylalanine)/bioglass composite scaffolds for bone tissue engineering. RSC Adv 2016. [DOI: 10.1039/c6ra04356a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Novel foamy scaffolds of poly(γ-benzyl-l-glutamate) and poly(γ-benzyl-l-glutamate-co-l-phenylalanine) were fabricated via a combination of a sintered NaCl templating method and ring-opening polymerization of α-amino acid N-carboxyanhydrides.
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Affiliation(s)
- Ning Cui
- State Key Laboratory for Mechanical Behavior of Materials
- Xi'an Jiaotong University
- Xi'an 710049
- China
| | - Junmin Qian
- State Key Laboratory for Mechanical Behavior of Materials
- Xi'an Jiaotong University
- Xi'an 710049
- China
| | - Jinlei Wang
- State Key Laboratory for Mechanical Behavior of Materials
- Xi'an Jiaotong University
- Xi'an 710049
- China
| | - Chuanlei Ji
- The Orthopaedic Department
- Xi Jing Hospital Affiliated to the Fourth Military Medical University
- Xi'an 710032
- China
| | - Weijun Xu
- State Key Laboratory for Mechanical Behavior of Materials
- Xi'an Jiaotong University
- Xi'an 710049
- China
| | - Hongjie Wang
- State Key Laboratory for Mechanical Behavior of Materials
- Xi'an Jiaotong University
- Xi'an 710049
- China
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47
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Oliveira H, Catros S, Boiziau C, Siadous R, Marti-Munoz J, Bareille R, Rey S, Castano O, Planell J, Amédée J, Engel E. The proangiogenic potential of a novel calcium releasing biomaterial: Impact on cell recruitment. Acta Biomater 2016; 29:435-445. [PMID: 26441126 DOI: 10.1016/j.actbio.2015.10.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Revised: 09/07/2015] [Accepted: 10/02/2015] [Indexed: 12/27/2022]
Abstract
In current bone tissue engineering strategies the achievement of sufficient angiogenesis during tissue regeneration is still a major limitation in order to attain full functionality. Several strategies have been described to tackle this problem, mainly by the use of angiogenic factors or endothelial progenitor cells. However, when facing a clinical scenario these approaches are inherently complex and present a high cost. As such, more cost effective alternatives are awaited. Here, we demonstrate the potential of electrospun poly(lactic acid) (PLA) fiber-based membranes, containing calcium phosphate ormoglass (CaP) particles, to elicit angiogenesis in vivo, in a subcutaneous model in mice. We show that the current approach elicited the local expression of angiogenic factors, associated to a chemotactic effect on macrophages, and sustained angiogenesis into the biomaterial. As both PLA and CaP are currently accepted for clinical application these off-the-shelf novel membranes have great potential for guided bone regeneration applications. STATEMENT OF SIGNIFICANCE In current bone tissue engineering approaches the achievement of sufficient angiogenesis, during tissue regeneration, is a major limitation in order to attain full tissue functionality. Recently, our group has found that calcium ions released by the degradation of calcium phosphate ormoglasses (CaP) are effective angiogenic promoters. Based on this, in this work we successfully produced hybrid fibrous mats with different contents of CaP nanoparticles and thus with different calcium ion release rates, using an ormoglass - poly(lactic acid) blend approach. We show that these matrices, upon implantation in a subcutaneous site, could elicit the local expression of angiogenic factors, associated to a chemotactic effect on macrophages, and sustained angiogenesis into the biomaterial, in a CaP dose dependent manner. This off-the-shelf cost effective approach presents great potential to translate to the clinics.
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Affiliation(s)
- Hugo Oliveira
- Inserm, U1026, Tissue Bioengineering, University Bordeaux Segalen, Bordeaux Cedex 33076, France.
| | - Sylvain Catros
- Inserm, U1026, Tissue Bioengineering, University Bordeaux Segalen, Bordeaux Cedex 33076, France
| | - Claudine Boiziau
- Inserm, U1026, Tissue Bioengineering, University Bordeaux Segalen, Bordeaux Cedex 33076, France
| | - Robin Siadous
- Inserm, U1026, Tissue Bioengineering, University Bordeaux Segalen, Bordeaux Cedex 33076, France
| | - Joan Marti-Munoz
- Institute for Bioengineering of Catalonia (IBEC), Barcelona, Spain; CIBER-BBN, Zaragoza, Spain
| | - Reine Bareille
- Inserm, U1026, Tissue Bioengineering, University Bordeaux Segalen, Bordeaux Cedex 33076, France
| | - Sylvie Rey
- Inserm, U1026, Tissue Bioengineering, University Bordeaux Segalen, Bordeaux Cedex 33076, France
| | - Oscar Castano
- Institute for Bioengineering of Catalonia (IBEC), Barcelona, Spain; CIBER-BBN, Zaragoza, Spain; Materials Science and Metallurgical Engineering, Universitat de Barcelona, Barcelona, Spain
| | - Josep Planell
- Institute for Bioengineering of Catalonia (IBEC), Barcelona, Spain; CIBER-BBN, Zaragoza, Spain; Materials Science and Metallurgical Engineering, Universitat de Barcelona, Barcelona, Spain
| | - Joëlle Amédée
- Inserm, U1026, Tissue Bioengineering, University Bordeaux Segalen, Bordeaux Cedex 33076, France
| | - Elisabeth Engel
- Institute for Bioengineering of Catalonia (IBEC), Barcelona, Spain; CIBER-BBN, Zaragoza, Spain; Dpt. Materials Science and Metallurgical Engineering, Universitat Politècnica de Catalunya, Barcelona, Spain
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48
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Huang YT, Wang WC, Hsu CP, Lu WY, Chuang WJ, Chiang MY, Lai YC, Chen HY. The ring-opening polymerization of ε-caprolactone and l-lactide using aluminum complexes bearing benzothiazole ligands as catalysts. Polym Chem 2016. [DOI: 10.1039/c6py00569a] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of aluminum complexes bearing benzothiazole ligands was synthesized and the ring-opening polymerization of ε-caprolactone (CL) and l-lactide (LA) using these aluminum complexes as catalysts was studied.
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Affiliation(s)
- Yen-Tzu Huang
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
| | - Wei-Chu Wang
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
| | - Chun-Pin Hsu
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
| | - Wei-Yi Lu
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
| | - Wan-Jung Chuang
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
| | - Michael Y. Chiang
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
- Department of Chemistry
| | - Yi-Chun Lai
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
| | - Hsuan-Ying Chen
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
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49
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Cheng YL, Chen YW, Wang K, Shie MY. Enhanced adhesion and differentiation of human mesenchymal stem cell inside apatite-mineralized/poly(dopamine)-coated poly(ε-caprolactone) scaffolds by stereolithography. J Mater Chem B 2016; 4:6307-6315. [DOI: 10.1039/c6tb01377e] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The purpose of this study is to develop PCL scaffolds using stereolithography technology and induced modifications using a poly dopamine (PDA)-coated/HA precipitate to stimulate human mesenchymal stem cells (hMSCs).
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Affiliation(s)
- Yih-Lin Cheng
- Department of Mechanical Engineering
- National Taiwan University of Science and Technology
- Taipei City
- Taiwan
| | - Yi-Wen Chen
- Graduate Institute of Biomedical Sciences
- China Medical University
- Taichung City 40447
- Taiwan
- 3D Printing Medical Research Center
| | - Kan Wang
- H. Milton Stewart School of Industrial and Systems Engineering
- Georgia Institute of Technology
- Atlanta
- USA
- Georgia Tech Manufacturing Institute
| | - Ming-You Shie
- 3D Printing Medical Research Center
- China Medical University Hospital
- China Medical University
- Taichung City 40447
- Taiwan
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50
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Sachot N, Mateos-Timoneda MA, Planell JA, Velders AH, Lewandowska M, Engel E, Castaño O. Towards 4th generation biomaterials: a covalent hybrid polymer-ormoglass architecture. NANOSCALE 2015; 7:15349-15361. [PMID: 26332471 DOI: 10.1039/c5nr04275e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Hybrid materials are being extensively investigated with the aim of mimicking the ECM microenvironment to develop effective solutions for bone tissue engineering. However, the common drawbacks of a hybrid material are the lack of interactions between the scaffold's constituents and the masking of its bioactive phase. Conventional hybrids often degrade in a non-homogeneous manner and the biological response is far from optimal. We have developed a novel material with strong interactions between constituents. The bioactive phase is directly exposed on its surface mimicking the structure of the ECM of bone. Here, polylactic acid electrospun fibers have been successfully and reproducibly coated with a bioactive organically modified glass (ormoglass, Si-Ca-P2 system) covalently. In comparison with the pure polymeric mats, the fibers obtained showed improved hydrophilicity and mechanical properties, bioactive ion release, exhibited a nanoroughness and enabled good cell adhesion and spreading after just one day of culture (rMSCs and rEPCs). The fibers were coated with different ormoglass compositions to tailor their surface properties (roughness, stiffness, and morphology) by modifying the experimental parameters. Knowing that cells modulate their behavior according to the exposed physical and chemical signals, the development of this instructive material is a valuable advance in the design of functional regenerative biomaterials.
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Affiliation(s)
- N Sachot
- Biomaterials for Regenerative Therapies, Institute for Bioengineering of Catalonia (IBEC), Barcelona, Spain.
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