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Dar LA, Manzoor T, Shafi S, Kumar A, Ahmad SM. Fabrication and characterization of calcium peroxide and berberine loaded cryogels for enhanced wound healing. J Mater Chem B 2024. [PMID: 39101879 DOI: 10.1039/d4tb00989d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/06/2024]
Abstract
Wound healing represents a complex biological process crucial for tissue repair and regeneration. In recent years, biomaterial-based scaffolds loaded with bioactive compounds have emerged as promising therapeutic strategies to accelerate wound healing. In this study, we investigated the properties and wound healing effects of cryogels loaded with calcium peroxide (CP) and berberine (BB). The cryogels were synthesized through a cryogenic freezing technique and displayed pore diameters of 83 ± 39 μm, with porosity exceeding 90%. Following 20 days of degradation, the percentage of remaining weight for GPC and GPC-CP-BB cryogels was determined to be 12.42 ± 2.45% and 10.78 ± 2.08%, respectively. Moreover, the swelling ratios after 3 minutes for GPC and GPC-CP-BB were found to be 22.10 ± 0.05 and 21.00 ± 0.07, respectively. In vitro investigations demonstrated the cytocompatibility of the cryogels, with sufficient adhesion and proliferation of fibroblast (NIH-3T3) cells observed on the scaffolds, along with their hemocompatibility. Furthermore, the cryogels exhibited sustained release kinetics of both calcium peroxide and berberine, ensuring prolonged therapeutic effects at the wound site. In vivo assessment using a rat model of full-thickness skin wounds demonstrated accelerated wound closure rates in animals treated with the GPC-CP-BB scaffold compared to controls. Histological analysis revealed enhanced granulation tissue formation, re-epithelialization, and collagen deposition in the GPC-CP-BB group. Overall, our findings suggest that the scaffold loaded with CP and BB holds great promise as a therapeutic approach for promoting wound healing. Its multifaceted properties offer a multifunctional platform for localized delivery of therapeutic agents while providing mechanical support and maintaining a favorable microenvironment for tissue regeneration.
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Affiliation(s)
- Lateef Ahmad Dar
- Division of Animal Biotechnology, Faculty of Veterinary Sciences & Animal Husbandry, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir Shuhama Srinagar, Jammu and Kashmir, 190006, India.
- Department of Pharmaceutical Sciences, University of Kashmir, Hazratbal Srinagar, Jammu and Kashmir, 190006, India
| | - Tasaduq Manzoor
- Division of Animal Biotechnology, Faculty of Veterinary Sciences & Animal Husbandry, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir Shuhama Srinagar, Jammu and Kashmir, 190006, India.
| | - Sabeeha Shafi
- Department of Pharmaceutical Sciences, University of Kashmir, Hazratbal Srinagar, Jammu and Kashmir, 190006, India
| | - Ashok Kumar
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur 208016, Uttar Pradesh, India
| | - Syed Mudasir Ahmad
- Division of Animal Biotechnology, Faculty of Veterinary Sciences & Animal Husbandry, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir Shuhama Srinagar, Jammu and Kashmir, 190006, India.
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Wein S, Schemmer C, Al Enezy-Ulbrich MA, Jung SA, Rütten S, Kühnel M, Jonigk D, Jahnen-Dechent W, Pich A, Neuss S. Fibrin-Based Hydrogels with Reactive Amphiphilic Copolymers for Mechanical Adjustments Allow for Capillary Formation in 2D and 3D Environments. Gels 2024; 10:182. [PMID: 38534600 DOI: 10.3390/gels10030182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 02/27/2024] [Accepted: 02/29/2024] [Indexed: 03/28/2024] Open
Abstract
This study focuses on enhancing controllable fibrin-based hydrogels for tissue engineering, addressing existing weaknesses. By integrating a novel copolymer, we improved the foundation for cell-based angiogenesis with adaptable structural features. Tissue engineering often faces challenges like waste disposal and nutrient supply beyond the 200 µm diffusion limit. Angiogenesis breaks through this limitation, allowing the construction of larger constructs. Our innovative scaffold combination significantly boosts angiogenesis, resulting in longer branches and more capillary network junctions. The copolymer attached to fibrin fibers enables precise adjustment of hydrogel mechanical dynamic properties for specific applications. Our material proves effective for angiogenesis, even under suppression factors like suramin. In our study, we prepared fibrin-based hydrogels with and without the copolymer PVP12400-co-GMA10mol%. Using a co-culture system of human umbilical vein endothelial cells (HUVEC) and mesenchymal stem cells (MSC), we analyzed angiogenetic behavior on and within the modified hydrogels. Capillary-like structures were reproducibly formed on different surfaces, demonstrating the general feasibility of three-dimensional endothelial cell networks in fibrin-based hydrogels. This highlights the biomaterial's suitability for in vitro pre-vascularization of biohybrid implants.
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Affiliation(s)
- Svenja Wein
- Helmholtz Institute for Biomedical Engineering, BioInterface Group, RWTH Aachen University, Pauwelsstrasse 20, 52074 Aachen, Germany
- Institute of Pathology, RWTH Aachen University, Pauwelsstrasse 30, 52074 Aachen, Germany
| | - Carina Schemmer
- Chair for Laser Technology LLT, RWTH Aachen University, Steinbachstraße 15, 52074 Aachen, Germany
| | - Miriam Aischa Al Enezy-Ulbrich
- Functional and Interactive Polymers, Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 1, 52074 Aachen, Germany
- DWI-Leibniz Institute for Interactive Materials, RWTH Aachen University, Forckenbeckstraße 50, 52074 Aachen, Germany
| | - Shannon Anna Jung
- Functional and Interactive Polymers, Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 1, 52074 Aachen, Germany
- DWI-Leibniz Institute for Interactive Materials, RWTH Aachen University, Forckenbeckstraße 50, 52074 Aachen, Germany
| | - Stephan Rütten
- Electron Microscopic Facility, University Clinics, RWTH Aachen University, Pauwelsstrasse 30, 52074 Aachen, Germany
| | - Mark Kühnel
- Institute of Pathology, RWTH Aachen University, Pauwelsstrasse 30, 52074 Aachen, Germany
| | - Danny Jonigk
- Institute of Pathology, RWTH Aachen University, Pauwelsstrasse 30, 52074 Aachen, Germany
| | - Wilhelm Jahnen-Dechent
- Helmholtz Institute for Biomedical Engineering, BioInterface Group, RWTH Aachen University, Pauwelsstrasse 20, 52074 Aachen, Germany
| | - Andrij Pich
- Functional and Interactive Polymers, Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 1, 52074 Aachen, Germany
- DWI-Leibniz Institute for Interactive Materials, RWTH Aachen University, Forckenbeckstraße 50, 52074 Aachen, Germany
| | - Sabine Neuss
- Helmholtz Institute for Biomedical Engineering, BioInterface Group, RWTH Aachen University, Pauwelsstrasse 20, 52074 Aachen, Germany
- Institute of Pathology, RWTH Aachen University, Pauwelsstrasse 30, 52074 Aachen, Germany
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Tian B, Liu J, Guo S, Li A, Wan JB. Macromolecule-based hydrogels nanoarchitectonics with mesenchymal stem cells for regenerative medicine: A review. Int J Biol Macromol 2023:125161. [PMID: 37270118 DOI: 10.1016/j.ijbiomac.2023.125161] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 05/25/2023] [Accepted: 05/28/2023] [Indexed: 06/05/2023]
Abstract
The role of regenerative medicine in clinical therapies is becoming increasingly vital. Under specific conditions, mesenchymal stem cells (MSCs) are capable of differentiating into mesoblastema (i.e., adipocytes, chondrocytes, and osteocytes) and other embryonic lineages. Their application in regenerative medicine has attracted a great deal of interest among researchers. To maximize the potential applications of MSCs, materials science could provide natural extracellular matrices and provide an effective means to understand the various mechanisms of differentiation for the growth of MSCs. Pharmaceutical fields are represented among the research on biomaterials by macromolecule-based hydrogel nanoarchitectonics. Various biomaterials have been used to prepare hydrogels with their unique chemical and physical properties to provide a controlled microenvironment for the culture of MSCs, laying the groundwork for future practical applications in regenerative medicine. This article currently describes and summarizes the sources, characteristics, and clinical trials of MSCs. In addition, it describes the differentiation of MSCs in various macromolecule-based hydrogel nanoarchitectonics and highlights the preclinical studies of MSCs-loaded hydrogel materials in regenerative medicine conducted over the past few years. Finally, the challenges and prospects of MSC-loaded hydrogels are discussed, and the future development of macromolecule-based hydrogel nanoarchitectonics is outlined by comparing the current literature.
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Affiliation(s)
- Bingren Tian
- Institute of Medical Sciences, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China.
| | - Jiayue Liu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao
| | - Songlin Guo
- Institute of Medical Sciences, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
| | - Aiqin Li
- Department of Day-care Unit, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
| | - Jian-Bo Wan
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao.
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Deepika F, Bathina S, Armamento-Villareal R. Novel Adipokines and Their Role in Bone Metabolism: A Narrative Review. Biomedicines 2023; 11:biomedicines11020644. [PMID: 36831180 PMCID: PMC9953715 DOI: 10.3390/biomedicines11020644] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 02/02/2023] [Accepted: 02/14/2023] [Indexed: 02/23/2023] Open
Abstract
The growing burden of obesity and osteoporosis is a major public health concern. Emerging evidence of the role of adipokines on bone metabolism has led to the discovery of novel adipokines over the last decade. Obesity is recognized as a state of adipose tissue inflammation that adversely affects bone health. Adipokines secreted from white adipose tissue (WAT) and bone marrow adipose tissue (BMAT) exerts endocrine and paracrine effects on the survival and function of osteoblasts and osteoclasts. An increase in marrow fat is implicated in osteoporosis and, hence, it is crucial to understand the complex interplay between adipocytes and bone. The objective of this review is to summarize recent advances in our understanding of the role of different adipokines on bone metabolism. METHODS This is a comprehensive review of the literature available in PubMED and Cochrane databases, with an emphasis on the last five years using the keywords. RESULTS Leptin has shown some positive effects on bone metabolism; in contrast, both adiponectin and chemerin have consistently shown a negative association with BMD. No significant association was found between resistin and BMD. Novel adipokines such as visfatin, LCN-2, Nesfatin-1, RBP-4, apelin, and vaspin have shown bone-protective and osteoanabolic properties that could be translated into therapeutic targets. CONCLUSION New evidence suggests the potential role of novel adipokines as biomarkers to predict osteoporosis risk, and as therapeutic targets for the treatment of osteoporosis.
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Affiliation(s)
- Fnu Deepika
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
- Center for Translational Research on Inflammatory Disease, Michael E DeBakey Veterans Affairs (VA) Medical Center, Houston, TX 77030, USA
- Correspondence: (F.D.); (R.A.-V.); Tel.: +1-713-794-1414 (R.A.-V.)
| | - Siresha Bathina
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
- Center for Translational Research on Inflammatory Disease, Michael E DeBakey Veterans Affairs (VA) Medical Center, Houston, TX 77030, USA
| | - Reina Armamento-Villareal
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
- Center for Translational Research on Inflammatory Disease, Michael E DeBakey Veterans Affairs (VA) Medical Center, Houston, TX 77030, USA
- Correspondence: (F.D.); (R.A.-V.); Tel.: +1-713-794-1414 (R.A.-V.)
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Alamán‐Díez P, García‐Gareta E, Arruebo M, Pérez MÁ. A bone-on-a-chip collagen hydrogel-based model using pre-differentiated adipose-derived stem cells for personalized bone tissue engineering. J Biomed Mater Res A 2023; 111:88-105. [PMID: 36205241 PMCID: PMC9828068 DOI: 10.1002/jbm.a.37448] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 08/24/2022] [Accepted: 09/13/2022] [Indexed: 01/12/2023]
Abstract
Mesenchymal stem cells have contributed to the continuous progress of tissue engineering and regenerative medicine. Adipose-derived stem cells (ADSC) possess many advantages compared to other origins including easy tissue harvesting, self-renewal potential, and fast population doubling time. As multipotent cells, they can differentiate into osteoblastic cell linages. In vitro bone models are needed to carry out an initial safety assessment in the study of novel bone regeneration therapies. We hypothesized that 3D bone-on-a-chip models containing ADSC could closely recreate the physiological bone microenvironment and promote differentiation. They represent an intermedium step between traditional 2D-in vitro and in vivo experiments facilitating the screening of therapeutic molecules while saving resources. Herein, we have differentiated ADSC for 7 and 14 days and used them to fabricate in vitro bone models by embedding the pre-differentiated cells in a 3D collagen matrix placed in a microfluidic chip. Osteogenic markers such as alkaline phosphatase activity, calcium mineralization, changes on cell morphology, and expression of specific proteins (bone sialoprotein 2, dentin matrix acidic phosphoprotein-1, and osteocalcin) were evaluated to determine cell differentiation potential and evolution. This is the first miniaturized 3D-in vitro bone model created from pre-differentiated ADSC embedded in a hydrogel collagen matrix which could be used for personalized bone tissue engineering.
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Affiliation(s)
- Pilar Alamán‐Díez
- Multiscale in Mechanical and Biological Engineering, Aragón Institute of Engineering Research (I3A), Aragón Institute of Healthcare Research (IIS Aragón)University of ZaragozaZaragozaSpain
| | - Elena García‐Gareta
- Multiscale in Mechanical and Biological Engineering, Aragón Institute of Engineering Research (I3A), Aragón Institute of Healthcare Research (IIS Aragón)University of ZaragozaZaragozaSpain,Division of Biomaterials and Tissue Engineering, UCL Eastman Dental InstituteUniversity College LondonLondonUK
| | - Manuel Arruebo
- Aragón Institute of Nanoscience and Materials (INMA), Consejo Superior de Investigaciones Científicas (CSIC)University of ZaragozaZaragozaSpain,Department of Chemical EngineeringUniversity of ZaragozaZaragozaSpain
| | - María Ángeles Pérez
- Multiscale in Mechanical and Biological Engineering, Aragón Institute of Engineering Research (I3A), Aragón Institute of Healthcare Research (IIS Aragón)University of ZaragozaZaragozaSpain
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Application of Nano-Inspired Scaffolds-Based Biopolymer Hydrogel for Bone and Periodontal Tissue Regeneration. Polymers (Basel) 2022; 14:polym14183791. [PMID: 36145936 PMCID: PMC9504130 DOI: 10.3390/polym14183791] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 08/28/2022] [Accepted: 08/30/2022] [Indexed: 11/17/2022] Open
Abstract
This review’s objectives are to provide an overview of the various kinds of biopolymer hydrogels that are currently used for bone tissue and periodontal tissue regeneration, to list the advantages and disadvantages of using them, to assess how well they might be used for nanoscale fabrication and biofunctionalization, and to describe their production processes and processes for functionalization with active biomolecules. They are applied in conjunction with other materials (such as microparticles (MPs) and nanoparticles (NPs)) and other novel techniques to replicate physiological bone generation more faithfully. Enhancing the biocompatibility of hydrogels created from blends of natural and synthetic biopolymers can result in the creation of the best scaffold match to the extracellular matrix (ECM) for bone and periodontal tissue regeneration. Additionally, adding various nanoparticles can increase the scaffold hydrogel stability and provide a number of biological effects. In this review, the research study of polysaccharide hydrogel as a scaffold will be critical in creating valuable materials for effective bone tissue regeneration, with a future impact predicted in repairing bone defects.
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7
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Diffusion-controlled release of the theranostic protein-photosensitizer Azulitox from composite of Fmoc-Phenylalanine Fibrils encapsulated with BSA hydrogels. J Biotechnol 2021; 341:51-62. [PMID: 34464649 DOI: 10.1016/j.jbiotec.2021.08.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 08/06/2021] [Accepted: 08/25/2021] [Indexed: 12/21/2022]
Abstract
Hydrogels offer a promising potential for the encapsulation and regulated release of drugs due to their biocompatibility and their tunable properties as materials. Only a limited number of systems and procedures enable the encapsulation of sensitive proteins. N-terminally fmoc-protected phenylalanine has been shown to self-assemble into a transparent, stable hydrogel It can be considered a supergelator due to the low amount of monomers necessary for hydrogelation (0.1% w/v), making it a good candidate for the encapsulation and stabilization of sensitive proteins. However, application options for this hydrogel are rather limited to those of many other fibril-based materials due to its intrinsic lack of mechanical strength and high susceptibility to changes in environmental conditions. Here, we demonstrate that the stability of a fibrillary system and the resulting release of the protein-photosensitizer Azulitox can be increased by combining the hydrogel with a tightly cross-linked BSA hydrogel. Azulitox is known to display cell-penetrating properties, anti-proliferative activity and has a distinctive fluorescence. Confocal microscopy and fluorescence measurements verified the maintenance of all essential functions of the encapsulated protein. In contrast, the combination of fibrillary and protein hydrogel resulted in a significant stabilization of the matrix and an adjustable release pattern for encapsulated protein.
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8
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Kaibara T, Wang L, Tsuda M, Nonoyama T, Kurokawa T, Iwasaki N, Gong JP, Tanaka S, Yasuda K. Hydroxyapatite-hybridized double-network hydrogel surface enhances differentiation of bone marrow-derived mesenchymal stem cells to osteogenic cells. J Biomed Mater Res A 2021; 110:747-760. [PMID: 34713570 DOI: 10.1002/jbm.a.37324] [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: 04/08/2021] [Revised: 09/22/2021] [Accepted: 10/15/2021] [Indexed: 01/31/2023]
Abstract
Recently, we have developed a hydroxyapatite (HAp)-hybridized double-network (DN) hydrogel (HAp/DN gel), which can robustly bond to the bone tissue in the living body. The purpose of this study is to clarify whether the HAp/DN gel surface can differentiate the bone marrow-derived mesenchymal stem cells (MSCs) to osteogenic cells. We used the MSCs which were harvested from the rabbit bone marrow and cultured on the polystyrene (PS) dish using the autogenous serum-supplemented medium. First, we confirmed the properties of MSCs by evaluating colony forming unit capacity, expression of MSC markers using flow cytometry, and multidifferential capacity. Secondly, polymerase chain reaction analysis demonstrated that the HAp/DN gel surface significantly enhanced mRNA expression of the eight osteogenic markers (TGF-β1, BMP-2, Runx2, Col-1, ALP, OPN, BSP, and OCN) in the cultured MSCs at 7 days than the PS surfaces (p < 0.0001), while the DN gel and HAp surfaces provided no or only a slight effect on the expression of these markers except for Runx2. Additionally, the alkaline phosphatase activity was significantly higher in the cells cultured on the HAp/DN gel surface than in the other three material surfaces (p < 0.0001). Thirdly, when the HAp/DN gel plug was implanted into the rabbit bone marrow, MSC marker-positive cells were recruited in the tissue generated around the plug at 3 days, and Runx2 and OCN were highly expressed in these cells. In conclusion, this study demonstrated that the HAp/DN gel surface can differentiate the MSCs into osteogenic cells.
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Affiliation(s)
- Takuma Kaibara
- Department of Orthopaedic Surgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan.,Department of Cancer Pathology, Faculty of Medicine, Hokkaido University, Sapporo, Japan
| | - Lei Wang
- Department of Cancer Pathology, Faculty of Medicine, Hokkaido University, Sapporo, Japan.,Global Station for Soft Matter, Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Sapporo, Japan
| | - Masumi Tsuda
- Department of Cancer Pathology, Faculty of Medicine, Hokkaido University, Sapporo, Japan.,Global Station for Soft Matter, Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Sapporo, Japan.,Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Japan
| | - Takayuki Nonoyama
- Global Station for Soft Matter, Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Sapporo, Japan.,Laboratory of Soft & Wet Matter, Faculty of Advanced Life Science, Hokkaido University, Sapporo, Japan
| | - Takayuki Kurokawa
- Global Station for Soft Matter, Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Sapporo, Japan.,Laboratory of Soft & Wet Matter, Faculty of Advanced Life Science, Hokkaido University, Sapporo, Japan
| | - Norimasa Iwasaki
- Department of Orthopaedic Surgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan.,Global Station for Soft Matter, Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Sapporo, Japan
| | - Jian Ping Gong
- Global Station for Soft Matter, Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Sapporo, Japan.,Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Japan.,Laboratory of Soft & Wet Matter, Faculty of Advanced Life Science, Hokkaido University, Sapporo, Japan
| | - Shinya Tanaka
- Department of Cancer Pathology, Faculty of Medicine, Hokkaido University, Sapporo, Japan.,Global Station for Soft Matter, Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Sapporo, Japan.,Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Japan
| | - Kazunori Yasuda
- Global Station for Soft Matter, Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Sapporo, Japan.,Sports Medicine and Arthroscopy Center, Yagi Orthopaedic Hospital, Sapporo, Japan
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Zou R, Wu S, Wang Y, Kang X, Zhao S, Shi H, Zheng D, Gao B, Ma S, Niu L, Gao Y. Role of integrin‑linked kinase in static compressive stress‑induced autophagy via phosphatidylinositol 3 kinase in human periodontal ligament cells. Int J Mol Med 2021; 48:167. [PMID: 34278436 PMCID: PMC8285053 DOI: 10.3892/ijmm.2021.5000] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 05/27/2021] [Indexed: 12/12/2022] Open
Abstract
Orthodontic tooth movement (OTM) is achieved by using mechanical stimuli, which lead to the remodeling of periodontal tissues. Previous findings have demonstrated that autophagy may be one of the cell responses to mechanical stress. As a key structure in the integrin pathway, integrin linked‑kinase (ILK) may play a role in the transmission of these mechanical signals. In addition, ILK is an important upstream molecule that regulates autophagy, under the influence of phosphatidylinositol 3 kinase (PI3K). Therefore, exploring the effect of mechanical stress on autophagy and the associated role of ILK/PI3K is of utmost significance to understanding the mechanism behind OTM. In the present study, human periodontal ligament cells (hPDLCs) were embedded into a collagen‑alginate complex hydrogel for three‑dimensional (3D) culturing. Static compressive stress (2.5 g/cm2) was loaded using the uniform weight method for 5, 15, 30, and 60 min. The autophagy of hPDLCs was detected by the expression of Beclin‑1 (BECN1) and ATG‑5 using RT‑qPCR and LC3, respectively, using immunofluorescence. The results showed that the level of autophagy and gene expression of ILK increased significantly under static compressive stress. In ILK‑silenced cells, static compressive stress could also upregulate ILK expression and increase the levels of autophagy. After PI3K inhibition, the increase in the autophagy level and the upregulation of ILK expression disappeared. These findings suggest that static compressive stress can induce autophagy in hPDLCs in a rapid, transient process, regulated by ILK and PI3K. Moreover, this static stress can upregulate ILK expression in a PI3K‑dependent manner.
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Affiliation(s)
- Rui Zou
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Shiyang Wu
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Yijie Wang
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Xueping Kang
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Shuyang Zhao
- College of Stomatology, Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Haoyu Shi
- College of Stomatology, Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Danqing Zheng
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Bei Gao
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Shuyu Ma
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Lin Niu
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Yunan Gao
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
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10
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6-deoxy-aminocellulose derivatives embedded soft gelatin methacryloyl (GelMA) hydrogels for improved wound healing applications: In vitro and in vivo studies. Int J Biol Macromol 2021; 185:419-433. [PMID: 34166695 DOI: 10.1016/j.ijbiomac.2021.06.112] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 06/10/2021] [Accepted: 06/16/2021] [Indexed: 12/16/2022]
Abstract
Hydrogels were prepared by mixing protein and carbohydrate-based biopolymers to increase the mechanical properties and efficient cell adhesion and proliferation for wound healing applications. Microcrystalline cellulose (MCC) and its 6-deoxy-aminocellulose derivatives (6-deoxy-6-hydrazide Cellulose (Cell-Hyd), 6-deoxy-6-diethylamide Cellulose (Cell-DEA), and 6-deoxy-6-diethyltriamide Cellulose (Cell-DETA)) were embedded in methacrylated gelatin (GelMA). GelMA and 6-deoxy-aminocellulose derivatives were synthesized and characterized by spectroscopic techniques. MCC and cellulose derivatives embedded GelMA gels were characterized by FTIR, SEM and Tensile mechanical testing. SEM images revealed that, porosity of the amine MCC incorporated GelMA was decreased compared to GelMA and MCC incorporated GelMA. Tensile strain of GelMA 61.30% at break was increased to 64.3% in case of GelMA/Cell-HYD. In vitro cytocompatibility and cell proliferation using NIH-3T3 cell lines showed cell density trend on scaffold as GelMA/Cell-DETA>GelMA/Cell-Hyd > GelMA. Scratch assay for wound healing revealed that GelMA/Cell-DETA showed complete wound closure, while GelMA/Cell-Hyd and GelMA exhibited 85.7%, and 66.1% wound healing, respectively in 8 h. In vivo tests on rats revealed that GelMA/Cell-DETA exhibited 98% wound closure on day 9, whereas GelMA/Cell-Hyd exhibited 97.7% and GelMA 66.1% wound healing on day 14. Our findings revealed that GelMA embedded amine MCC derivatives hydrogels can be applied for achieving accelerated wound healing.
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Morscheid YP, Venkatesan JK, Schmitt G, Orth P, Zurakowski D, Speicher-Mentges S, Menger MD, Laschke MW, Cucchiarini M, Madry H. rAAV-Mediated Human FGF-2 Gene Therapy Enhances Osteochondral Repair in a Clinically Relevant Large Animal Model Over Time In Vivo. Am J Sports Med 2021; 49:958-969. [PMID: 33606561 DOI: 10.1177/0363546521988941] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Osteochondral defects, if left untreated, do not heal and can potentially progress toward osteoarthritis. Direct gene transfer of basic fibroblast growth factor 2 (FGF-2) with the clinically adapted recombinant adeno-associated viral (rAAV) vectors is a powerful tool to durably activate osteochondral repair processes. PURPOSE To examine the ability of an rAAV-FGF-2 construct to target the healing processes of focal osteochondral injury over time in a large translational model in vivo versus a control gene transfer condition. STUDY DESIGN Controlled laboratory study. METHODS Standardized osteochondral defects created in the knee joints of adult sheep were treated with an rAAV human FGF-2 (hFGF-2) vector by direct administration into the defect relative to control (reporter) rAAV-lacZ gene transfer. Osteochondral repair was monitored using macroscopic, histological, immunohistological, and biochemical methods and by micro-computed tomography after 6 months. RESULTS Effective, localized prolonged FGF-2 overexpression was achieved for 6 months in vivo relative to the control condition without undesirable leakage of the vectors outside the defects. Such rAAV-mediated hFGF-2 overexpression significantly increased the individual histological parameter "percentage of new subchondral bone" versus lacZ treatment, reflected in a volume of mineralized bone per unit volume of the subchondral bone plate that was equal to a normal osteochondral unit. Also, rAAV-FGF-2 significantly improved the individual histological parameters "defect filling,""matrix staining," and "cellular morphology" and the overall cartilage repair score versus the lacZ treatment and led to significantly higher cell densities and significantly higher type II collagen deposition versus lacZ treatment. Likewise, rAAV-FGF-2 significantly decreased type I collagen expression within the cartilaginous repair tissue. CONCLUSION The current work shows the potential of direct rAAV-mediated FGF-2 gene therapy to enhance osteochondral repair in a large, clinically relevant animal model over time in vivo. CLINICAL RELEVANCE Delivery of therapeutic (hFGF-2) rAAV vectors in sites of focal injury may offer novel, convenient tools to enhance osteochondral repair in the near future.
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Affiliation(s)
- Yannik P Morscheid
- Center of Experimental Orthopaedics, Saarland University Medical Center and Saarland University, Homburg/Saar, Germany
| | - Jagadeesh K Venkatesan
- Center of Experimental Orthopaedics, Saarland University Medical Center and Saarland University, Homburg/Saar, Germany
| | - Gertrud Schmitt
- Center of Experimental Orthopaedics, Saarland University Medical Center and Saarland University, Homburg/Saar, Germany
| | - Patrick Orth
- Center of Experimental Orthopaedics, Saarland University Medical Center and Saarland University, Homburg/Saar, Germany
| | - David Zurakowski
- Department of Anesthesiology, Boston Children's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Susanne Speicher-Mentges
- Center of Experimental Orthopaedics, Saarland University Medical Center and Saarland University, Homburg/Saar, Germany
| | - Michael D Menger
- Institute for Clinical and Experimental Surgery, Saarland University Medical Center and Saarland University, Homburg/Saar, Germany
| | - Matthias W Laschke
- Institute for Clinical and Experimental Surgery, Saarland University Medical Center and Saarland University, Homburg/Saar, Germany
| | - Magali Cucchiarini
- Center of Experimental Orthopaedics, Saarland University Medical Center and Saarland University, Homburg/Saar, Germany
| | - Henning Madry
- Center of Experimental Orthopaedics, Saarland University Medical Center and Saarland University, Homburg/Saar, Germany
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Walimbe T, Panitch A. Best of Both Hydrogel Worlds: Harnessing Bioactivity and Tunability by Incorporating Glycosaminoglycans in Collagen Hydrogels. Bioengineering (Basel) 2020; 7:E156. [PMID: 33276506 PMCID: PMC7711789 DOI: 10.3390/bioengineering7040156] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 11/26/2020] [Accepted: 11/30/2020] [Indexed: 01/13/2023] Open
Abstract
Collagen, the most abundant protein in mammals, has garnered the interest of scientists for over 50 years. Its ubiquitous presence in all body tissues combined with its excellent biocompatibility has led scientists to study its potential as a biomaterial for a wide variety of biomedical applications with a high degree of success and widespread clinical approval. More recently, in order to increase their tunability and applicability, collagen hydrogels have frequently been co-polymerized with other natural and synthetic polymers. Of special significance is the use of bioactive glycosaminoglycans-the carbohydrate-rich polymers of the ECM responsible for regulating tissue homeostasis and cell signaling. This review covers the recent advances in the development of collagen-based hydrogels and collagen-glycosaminoglycan blend hydrogels for biomedical research. We discuss the formulations and shortcomings of using collagen in isolation, and the advantages of incorporating glycosaminoglycans (GAGs) in the hydrogels. We further elaborate on modifications used on these biopolymers for tunability and discuss tissue specific applications. The information presented herein will demonstrate the versatility and highly translational value of using collagen blended with GAGs as hydrogels for biomedical engineering applications.
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Affiliation(s)
- Tanaya Walimbe
- Department of Biomedical Engineering, University of California, Davis, CA 95616, USA;
| | - Alyssa Panitch
- Department of Biomedical Engineering, University of California, Davis, CA 95616, USA;
- Department of Surgery, University of California Davis Health, Sacramento, CA 95817, USA
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13
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Sareethammanuwat M, Boonyuen S, Arpornmaeklong P. Effects of beta-tricalcium phosphate nanoparticles on the properties of a thermosensitive chitosan/collagen hydrogel and controlled release of quercetin. J Biomed Mater Res A 2020; 109:1147-1159. [PMID: 32985073 DOI: 10.1002/jbm.a.37107] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 09/22/2020] [Accepted: 09/26/2020] [Indexed: 12/11/2022]
Abstract
In the present study, an inorganic matrix of beta-tricalcium phosphate (bTCP) nanoparticles and quercetin was incorporated into an organic matrix of 2:1 (w/w) chitosan/collagen composite to fabricate thermosensitive bTCP-chitosan/collagen-quercetin hydrogels. A sol-gel transition of the hydrogels was stimulated by beta-glycerophosphate (bGP) and temperature changes at physiological temperature and pH levels. Thereafter, the effects of 1%-3% (w/v) bTCP on properties of the bTCP-bGP-2:1 (w/w) chitosan/collagen hydrogels were investigated. Notably, the incorporation of 1%-3% (w/v) bTCP in the hydrogels did not interfere with the gelation process and time of the hydrogels at physiological temperature and pH levels. The bTCP-hydrogels exhibited a porous structure, interconnecting pore architecture, and median pore size of 100-200 μm. The incorporation of 3% bTCP increased the mechanical strength but decreased the swelling and degradation rates, pore size, permeability, and quercetin release rate of the hydrogels. The hydrogels were noncytotoxic and able to support cell encapsulation. A sustained quercetin release profile of the 3% bTCP-hydrogel further suggested the applicability of the hydrogel as a delivery vehicle of natural flavonoids for bone regeneration.
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Affiliation(s)
- Maytha Sareethammanuwat
- Master of Science Program in Dental Implantology, Faculty of Dentistry, Thammasat University Rangsit campus, Pathum Thani, Thailand
| | - Supakorn Boonyuen
- Department of Chemistry, Faculty of Science and Technology, Thammasat University Rangsit campus, Pathum Thani, Thailand
| | - Premjit Arpornmaeklong
- Oral and Maxillofacial Surgery Division, Faculty of Dentistry, Thammasat University Rangsit campus, Pathum Thani, Thailand
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Tejada G, Barrera MG, García P, Sortino M, Lamas MC, Lassalle V, Alvarez V, Leonardi D. Nanoparticulated Systems Based on Natural Polymers Loaded with Miconazole Nitrate and Lidocaine for the Treatment of Topical Candidiasis. AAPS PharmSciTech 2020; 21:278. [PMID: 33033939 DOI: 10.1208/s12249-020-01826-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 09/22/2020] [Indexed: 12/17/2022] Open
Abstract
People with weakened immune systems are at risk of developing candidiasis which is a fungal infection caused by several species of Candida genus. In this work, polymeric nanoparticles containing miconazole nitrate and the anesthetic lidocaine clorhydrate were developed. Miconazole was chosen as a typical drug to treat buccopharyngeal candidiasis whereas lidocaine may be useful in the management of the pain burning, and pruritus caused by the infection. Nanoparticles were synthesized using chitosan and gelatin at different ratios ranging from 10:90 to 90:10. The nano-systems presented nanometric size (between 80 and 300 nm in water; with polydispersion index ranging from 0.120 to 0.596), and positive Z potential (between 20.11 and 37.12 mV). The determined encapsulation efficiency ranges from 65 to 99% or 34 to 91% for miconazole nitrate and lidocaine clorhydrate, respectively. X-ray diffraction and DSC analysis suggested that both drugs were in amorphous state in the nanoparticles. Finally, the systems fitted best the Korsmeyer-Peppas model showing that the release from the nanoparticles was through diffusion allowing a sustained release of both drugs and prolonged the activity of miconazole nitrate over time against Candida albicans for at least 24 h.
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15
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Vogel S, Ullm F, Damaris Müller C, Pompe T, Hempel U. Remodeling of Three-Dimensional Collagen I Matrices by Human Bone Marrow Stromal Cells during Osteogenic Differentiation In Vitro. ACS APPLIED BIO MATERIALS 2020; 3:6967-6978. [DOI: 10.1021/acsabm.0c00856] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Sarah Vogel
- Institute of Physiological Chemistry, Carl Gustav Carus Faculty of Medicine, Technische Universität Dresden, Fiedlerstrasse 42, Dresden 01307, Germany
| | - Franziska Ullm
- Institute of Biochemistry, Faculty of Life Sciences, Leipzig University, Johannisallee 21-23, Leipzig 04103, Germany
| | - Claudia Damaris Müller
- Institute of Physiological Chemistry, Carl Gustav Carus Faculty of Medicine, Technische Universität Dresden, Fiedlerstrasse 42, Dresden 01307, Germany
| | - Tilo Pompe
- Institute of Biochemistry, Faculty of Life Sciences, Leipzig University, Johannisallee 21-23, Leipzig 04103, Germany
| | - Ute Hempel
- Institute of Physiological Chemistry, Carl Gustav Carus Faculty of Medicine, Technische Universität Dresden, Fiedlerstrasse 42, Dresden 01307, Germany
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Filippi M, Born G, Chaaban M, Scherberich A. Natural Polymeric Scaffolds in Bone Regeneration. Front Bioeng Biotechnol 2020; 8:474. [PMID: 32509754 PMCID: PMC7253672 DOI: 10.3389/fbioe.2020.00474] [Citation(s) in RCA: 139] [Impact Index Per Article: 34.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 04/23/2020] [Indexed: 12/13/2022] Open
Abstract
Despite considerable advances in microsurgical techniques over the past decades, bone tissue remains a challenging arena to obtain a satisfying functional and structural restoration after damage. Through the production of substituting materials mimicking the physical and biological properties of the healthy tissue, tissue engineering strategies address an urgent clinical need for therapeutic alternatives to bone autografts. By virtue of their structural versatility, polymers have a predominant role in generating the biodegradable matrices that hold the cells in situ to sustain the growth of new tissue until integration into the transplantation area (i.e., scaffolds). As compared to synthetic ones, polymers of natural origin generally present superior biocompatibility and bioactivity. Their assembly and further engineering give rise to a wide plethora of advanced supporting materials, accounting for systems based on hydrogels or scaffolds with either fibrous or porous architecture. The present review offers an overview of the various types of natural polymers currently adopted in bone tissue engineering, describing their manufacturing techniques and procedures of functionalization with active biomolecules, and listing the advantages and disadvantages in their respective use in order to critically compare their actual applicability potential. Their combination to other classes of materials (such as micro and nanomaterials) and other innovative strategies to reproduce physiological bone microenvironments in a more faithful way are also illustrated. The regeneration outcomes achieved in vitro and in vivo when the scaffolds are enriched with different cell types, as well as the preliminary clinical applications are presented, before the prospects in this research field are finally discussed. The collection of studies herein considered confirms that advances in natural polymer research will be determinant in designing translatable materials for efficient tissue regeneration with forthcoming impact expected in the treatment of bone defects.
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Affiliation(s)
- Miriam Filippi
- Department of Biomedical Engineering, University of Basel, Basel, Switzerland.,Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Gordian Born
- Department of Biomedical Engineering, University of Basel, Basel, Switzerland
| | - Mansoor Chaaban
- Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Arnaud Scherberich
- Department of Biomedical Engineering, University of Basel, Basel, Switzerland.,Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland
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Moroi S, Miura T, Tamura T, Zhang X, Ura K, Takagi Y. Self-assembled collagen fibrils from the swim bladder of Bester sturgeon enable alignment of MC3T3-E1 cells and enhance osteogenic differentiation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 104:109925. [DOI: 10.1016/j.msec.2019.109925] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 06/14/2019] [Accepted: 06/26/2019] [Indexed: 01/18/2023]
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18
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Bodenberger N, Kubiczek D, Halbgebauer D, Rimola V, Wiese S, Mayer D, Rodriguez Alfonso AA, Ständker L, Stenger S, Rosenau F. Lectin-Functionalized Composite Hydrogels for “Capture-and-Killing” of Carbapenem-Resistant Pseudomonas aeruginosa. Biomacromolecules 2018; 19:2472-2482. [DOI: 10.1021/acs.biomac.8b00089] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Nicholas Bodenberger
- Center for Peptide Pharmaceuticals, Faculty of Natural Science, Ulm University, 89081 Ulm, Germany
- Synthesis of Macromolecules Department, Max-Planck-Institute for Polymer Research, 55128 Mainz, Germany
| | - Dennis Kubiczek
- Center for Peptide Pharmaceuticals, Faculty of Natural Science, Ulm University, 89081 Ulm, Germany
| | - Daniel Halbgebauer
- Center for Peptide Pharmaceuticals, Faculty of Natural Science, Ulm University, 89081 Ulm, Germany
| | - Vittoria Rimola
- Center for Peptide Pharmaceuticals, Faculty of Natural Science, Ulm University, 89081 Ulm, Germany
| | - Sebastian Wiese
- Core Unit Mass Spectrometry and Proteomics, Faculty of Natural Science, Ulm University, 89081 Ulm, Germany
| | - Daniel Mayer
- Institute for Medical Microbiology and Hygiene, University Hospital Ulm, 89070 Ulm, Germany
| | | | - Ludger Ständker
- Center for Peptide Pharmaceuticals, Faculty of Natural Science, Ulm University, 89081 Ulm, Germany
- Core Facility Functional Peptidomics, Faculty of Medicine, Ulm University 89081 Ulm, Germany
| | - Steffen Stenger
- Institute for Medical Microbiology and Hygiene, University Hospital Ulm, 89070 Ulm, Germany
| | - Frank Rosenau
- Center for Peptide Pharmaceuticals, Faculty of Natural Science, Ulm University, 89081 Ulm, Germany
- Synthesis of Macromolecules Department, Max-Planck-Institute for Polymer Research, 55128 Mainz, Germany
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19
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Zhang J, Yun S, Bi J, Dai S, Du Y, Zannettino ACW, Zhang H. Enhanced multi-lineage differentiation of human mesenchymal stem/stromal cells within poly(N-isopropylacrylamide-acrylic acid) microgel-formed three-dimensional constructs. J Mater Chem B 2018; 6:1799-1814. [PMID: 32254252 DOI: 10.1039/c8tb00376a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Human mesenchymal stem/stromal cells (hMSCs) are a potential cell source of stem cell therapy for many serious diseases and hMSC spheroids have emerged to replace single cell suspensions for cell therapy. Three-dimensional (3D) scaffolds or hydrogels which can mimic properties of the extracellular matrix (ECM) have been widely explored for their application in tissue regeneration. However, there are considerably less studies on inducing differentiation of hMSC spheroids using 3D scaffolds or hydrogels. This study is the first to explore multi-lineage differentiation of a stem cell line and primary stem cells within poly(N-isopropylacrylamide) (p(NIPAAm))-based thermosensitive microgel-formed constructs. We first demonstrated that poly(N-isopropylacrylamide-co-acrylic acid) (p(NIPAAm-AA)) was not toxic to hMSCs and the microgel-formed constructs facilitated formation of uniform stem cell spheroids. Due to functional enhancement of cell spheroids, hMSCs within the 3D microgel-formed constructs were induced for multi-lineage differentiation as evidenced by significant up-regulation of messenger RNA (mRNA) expression of chondrogenic and osteogenic genes even in the absence of induction media on day 9. When induction media were in situ supplied on day 9, mRNA expression of chondrogenic, osteogenic and adipogenic genes within the microgel-formed constructs were significantly higher than that in the pellet and 2D cultures, respectively, on day 37. In addition, histological and immunofluorescent images also confirmed successful multi-lineage differentiation of hMSCs within the 3D microgel-formed constructs. Hence, the thermosensitive p(NIPAAm-AA) microgel can be potentially used in an in vitro model for cell differentiation or in vivo transplantation of pre-differentiated human mesenchymal stromal cells into patients for specific lineage differentiation.
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Affiliation(s)
- Jiabin Zhang
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia.
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20
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Zhang X, Li J, Ye P, Gao G, Hubbell K, Cui X. Coculture of mesenchymal stem cells and endothelial cells enhances host tissue integration and epidermis maturation through AKT activation in gelatin methacryloyl hydrogel-based skin model. Acta Biomater 2017; 59:317-326. [PMID: 28684336 DOI: 10.1016/j.actbio.2017.07.001] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Revised: 06/26/2017] [Accepted: 07/01/2017] [Indexed: 12/25/2022]
Abstract
A major challenge for clinical use of skin substitutes is insufficient host tissue integration leading to loosening and partial necrosis of the implant. In this present study, a three-dimensional (3D) coculture system constructed using human umbilical cord mesenchymal stem cells (uc-MSCs) and umbilical vein endothelial cells (HUVECs) encapsulated in gelatin methacryloyl (GelMA) hydrogels was evaluated to determine the outcomes of cell-cell interactions in vitro and in vivo. The results revealed that GelMA hydrogels displayed minor cytotoxicity on both cell types. An uc-MSC:HUVEC ratio of 50:50 demonstrated the highest cell proliferation and expression of angiogenic markers. The supplement of basic fibroblast growth factors (bFGF) in coculture system further induced cell proliferation and gene expression in vitro. In vivo transplantation of this cocultured constructs efficiently enhanced the implant and host tissue integration. Additionally, the proliferation of keratinocytes was well maintained on GelMA hydrogels and the gene expression related to cell proliferation and differentiation was significantly increased in coculture system comparing to monoculture. Mechanistically, AKT signaling pathways were activated in cocultures. Our findings suggest that coculturing MSC and EC in GelMA hydrogels could be a promising approach to substantially improve the integration of exogenous skin substitutes and host tissues. STATEMENT OF SIGNIFICANCE In this study, the co-culture of uc-MSCs and HUVECs in photocrosslinkable GelMA hydrogels significantly enhanced host tissue integration. Cell proliferation, ECM deposition and angiogenic genes expression were all substantially improved in vitro and the excellent host tissue integration into the implanted tissue was observed in vivo. When served as a dermal layer, the scaffold with co-cultured cells enhanced the proliferation and differentiation of keratinocytes. AKT signaling was proved to be involved in the regulation of cell survival and fate determination. This work demonstrated the importance of 3D cell co-culture to facilitate host tissue integration that can be a promising approach for long-term survival of skin substitutes.
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Affiliation(s)
- Xiaofei Zhang
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China
| | - Jun Li
- College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Pengxiang Ye
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China
| | - Guifang Gao
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China; Stemorgan Incorporated, Allen, TX, USA.
| | | | - Xiaofeng Cui
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China; Stemorgan Incorporated, Allen, TX, USA.
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Lee SH, Park YB, Moon HS, Shim JS, Jung HS, Kim HJ, Chung MK. The role of rhFGF-2 soaked polymer membrane for enhancement of guided bone regeneration. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 29:825-843. [DOI: 10.1080/09205063.2017.1354676] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Sang-Hoon Lee
- Department of Prosthodontics, Oral Science Research Center, Yonsei University College of Dentistry, Seoul, Korea
| | - Young-Bum Park
- Department of Prosthodontics, Oral Science Research Center, Yonsei University College of Dentistry, Seoul, Korea
- BK21 PLUS Project, Yonsei University College of Dentistry, Seoul, Korea
| | - Hong-Seok Moon
- Department of Prosthodontics, Oral Science Research Center, Yonsei University College of Dentistry, Seoul, Korea
| | - June-Sung Shim
- Department of Prosthodontics, Oral Science Research Center, Yonsei University College of Dentistry, Seoul, Korea
| | - Han-Sung Jung
- BK21 PLUS Project, Yonsei University College of Dentistry, Seoul, Korea
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Oral Science Research Center, BK21 PLUS Project, Yonsei University College of Dentistry, Seoul, Korea
| | - Hyung Jun Kim
- Department of Oral & Maxillofacial Surgery, Oral Cancer Research Institute, Yonsei University College of Dentistry, Seoul, Korea
| | - Moon-Kyu Chung
- Department of Prosthodontics, Oral Science Research Center, Yonsei University College of Dentistry, Seoul, Korea
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Jin GZ, Kim HW. Effects of Type I Collagen Concentration in Hydrogel on the Growth and Phenotypic Expression of Rat Chondrocytes. Tissue Eng Regen Med 2017; 14:383-391. [PMID: 30603494 PMCID: PMC6171609 DOI: 10.1007/s13770-017-0060-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2017] [Revised: 05/17/2017] [Accepted: 05/23/2017] [Indexed: 11/25/2022] Open
Abstract
It is controversial whether type I collagen itself can maintain and improve chondrogenic phenotype of chondrocytes in a three-dimensional (3D) environment. In this study, we examined the effect of type I collagen concentration in hydrogel (0.5, 1, and 2 mg/ml) on the growth and phenotype expression of rat chondrocytes in vitro. All collagen hydrogels showed substantial contractions during culture, in a concentration-dependent manner, which was due to the cell proliferation. The cell viability was shown to be the highest in 2 mg/ml collagen gel. The mRNA expression of chondrogenic phenotypes, including SOX9, type II collagen, and aggrecan, was significantly up-regulated, particularly in 1 mg/ml collagen gel. Furthermore, the production of type II collagen and glycosaminoglycan (GAG) content was also enhanced. The results suggest that type I collagen hydrogel is not detrimental to, but may be useful for, the chondrocyte culture for cartilage tissue engineering.
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Affiliation(s)
- Guang-Zhen Jin
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, 119 Dandae-ro, Dongnam-gu, Cheonan, 31116 Korea
- Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116 Korea
| | - Hae-Won Kim
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, 119 Dandae-ro, Dongnam-gu, Cheonan, 31116 Korea
- Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116 Korea
- Department of Biomaterials Science, School of Dentistry, Dankook University, Cheonan, 31116 Korea
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Lectin-mediated reversible immobilization of human cells into a glycosylated macroporous protein hydrogel as a cell culture matrix. Sci Rep 2017; 7:6151. [PMID: 28733655 PMCID: PMC5522389 DOI: 10.1038/s41598-017-06240-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Accepted: 06/12/2017] [Indexed: 12/19/2022] Open
Abstract
3D cell culture is a helpful approach to study cell-cell interaction in a native-like environment, but is often limited due the challenge of retrieving cells from the material. In this study, we present the use of recombinant lectin B, a sugar-binding protein with four binding cavities, to enable reversible cell integration into a macroporous protein hydrogel matrix. By functionalizing hydrogel precursors with saccharose, lectin B can both bind to sugar moieties on the cellular surface as well as to the modified hydrogel network. Confocal microscopy and flow cytometry analysis revealed cells to be integrated into the network and to adhere and proliferate. Furthermore, the specificity and reversibility was investigated by using a recombinantly produced yellow fluorescent - lectin B fusion protein and a variety of sugars with diverging affinities for lectin B at different concentrations and elution times. Cells could be eluted within minutes by addition of L-fucose to the cell-loaded hydrogels to make cells available for further analysis.
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Bosetti M, Borrone A, Leigheb M, Shastri VP, Cannas M. * Injectable Graft Substitute Active on Bone Tissue Regeneration. Tissue Eng Part A 2017; 23:1413-1422. [PMID: 28530130 DOI: 10.1089/ten.tea.2016.0554] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
With the aim to obtain an injectable bioactive scaffold that can accelerate bone formation in sinus lift augmentation, in bony void and fracture repair, we have developed a three-dimensional (3D) jelly collagen containing lysophosphatidic acid (LPA) and 1α,25-dihydroxyvitamin D3 (1,25D3). Using an in vitro 3D culture model of bone fracture, we show that the contraction of the collagen gel is mediated by Rho-kinase activation in osteoblasts. The gel contraction showed dependence on cell concentration and was increased by LPA, which favored apposition and fastening of bone fragments approach. LPA was shown to act through actin cytoskeleton reorganization and myosin light chain phosphorylation of human primary osteoblasts (hOB). Moreover, LPA conferred osteoconductive properties as evidenced by the induction of proliferation, differentiation, and migration of hOB. The addition of 1,25D3 did not enhance cell-mediated gel contraction, but stimulated the maturation of hOB in vitro through the production of extracellular matrix of higher quality. On the basis of these observations, the collagen gel enriched with LPA and 1,25D3 described herein can be considered an injectable natural scaffold that allows the migration of cells from the side of bone defect and a promising candidate to accelerate bone growth and fracture healing.
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Affiliation(s)
- Michela Bosetti
- 1 Dipartimento di Scienze del Farmaco, Università del Piemonte Orientale , Novara, Italy
| | - Alessia Borrone
- 1 Dipartimento di Scienze del Farmaco, Università del Piemonte Orientale , Novara, Italy
| | - Massimiliano Leigheb
- 2 Department of Orthopaedics and Traumatology, Azienda Ospedaliero-Universitaria Maggiore della Carità , Novara, Italy
| | - V Prasad Shastri
- 3 Institute for Macromolecular Chemistry, University of Freiburg , Freiburg, Germany
| | - Mario Cannas
- 4 Dipartimento di Scienze della Salute, Università del Piemonte Orientale , Novara, Italy
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Ai C, Cai J, Zhu J, Zhou J, Jiang J, Chen S. Effect of PET graft coated with silk fibroin via EDC/NHS crosslink on graft-bone healing in ACL reconstruction. RSC Adv 2017. [DOI: 10.1039/c7ra08636a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
SF coating via EDC/NHS crosslink improved the osseointegration of PET ligaments within the bone tunnel.
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Affiliation(s)
- Chengchong Ai
- Department of Sports Medicine
- Huashan Hospital
- Fudan University
- Shanghai 200040
- China
| | - Jiangyu Cai
- Department of Sports Medicine
- Huashan Hospital
- Fudan University
- Shanghai 200040
- China
| | - Jun Zhu
- National Engineering Research Center for Nanotechnology
- Shanghai 200241
- China
| | - Juan Zhou
- National Engineering Research Center for Nanotechnology
- Shanghai 200241
- China
| | - Jia Jiang
- Department of Sports Medicine
- Huashan Hospital
- Fudan University
- Shanghai 200040
- China
| | - Shiyi Chen
- Department of Sports Medicine
- Huashan Hospital
- Fudan University
- Shanghai 200040
- China
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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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Akahane M, Shimizu T, Kira T, Onishi T, Uchihara Y, Imamura T, Tanaka Y. Culturing bone marrow cells with dexamethasone and ascorbic acid improves osteogenic cell sheet structure. Bone Joint Res 2016; 5:569-576. [PMID: 27881440 PMCID: PMC5131089 DOI: 10.1302/2046-3758.511.bjr-2016-0013.r1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Accepted: 09/09/2016] [Indexed: 02/06/2023] Open
Abstract
Objectives To assess the structure and extracellular matrix molecule expression of osteogenic cell sheets created via culture in medium with both dexamethasone (Dex) and ascorbic acid phosphate (AscP) compared either Dex or AscP alone. Methods Osteogenic cell sheets were prepared by culturing rat bone marrow stromal cells in a minimal essential medium (MEM), MEM with AscP, MEM with Dex, and MEM with Dex and AscP (Dex/AscP). The cell number and messenger (m)RNA expression were assessed in vitro, and the appearance of the cell sheets was observed after mechanical retrieval using a scraper. β-tricalcium phosphate (β-TCP) was then wrapped with the cell sheets from the four different groups and subcutaneously implanted into rats. Results After mechanical retrieval, the osteogenic cell sheets from the MEM, MEM with AscP, and MEM with Dex groups appeared to be fragmented or incomplete structures. The cell sheets cultured with Dex/AscP remained intact after mechanical retrieval, without any identifiable tears. Culture with Dex/AscP increased the mRNA and protein expression of extracellular matrix proteins and cell number compared with those of the other three groups. More bridging bone formation was observed after transplantation of the β-TCP scaffold wrapped with cell sheets cultured with Dex/AscP, than in the other groups. Conclusions These results suggest that culture with Dex/AscP improves the mechanical integrity of the osteogenic cell sheets, allowing retrieval of the confluent cells in a single cell sheet structure. This method may be beneficial when applied in cases of difficult tissue reconstruction, such as nonunion, bone defects, and osteonecrosis. Cite this article: M. Akahane, T. Shimizu, T. Kira, T. Onishi, Y. Uchihara, T. Imamura, Y. Tanaka. Culturing bone marrow cells with dexamethasone and ascorbic acid improves osteogenic cell sheet structure. Bone Joint Res 2016;5:569–576. DOI: 10.1302/2046-3758.511.BJR-2016-0013.R1.
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Affiliation(s)
- M Akahane
- Department of Public Health, Health Management and Policy, Nara Medical University Faculty of Medicine, Kashihara, Nara, Japan
| | - T Shimizu
- Department of Orthopedic Surgery, Nara Medical University Faculty of Medicine, Kashihara, Nara, Japan
| | - T Kira
- Department of Orthopedic Surgery, Nara Medical University Faculty of Medicine, Kashihara, Nara, Japan
| | - T Onishi
- Department of Orthopedic Surgery, Nara Medical University Faculty of Medicine, Kashihara, Nara, Japan
| | - Y Uchihara
- Department of Orthopedic Surgery, Nara Medical University Faculty of Medicine, Kashihara, Nara, Japan
| | - T Imamura
- Department of Public Health, Health Management and Policy, Nara Medical University Faculty of Medicine, Kashihara, Nara, Japan
| | - Y Tanaka
- Department of Orthopedic Surgery, Nara Medical University Faculty of Medicine, Kashihara, Nara, Japan
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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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High glucose prevents osteogenic differentiation of mesenchymal stem cells via lncRNA AK028326/CXCL13 pathway. Biomed Pharmacother 2016; 84:544-551. [PMID: 27693963 DOI: 10.1016/j.biopha.2016.09.058] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Revised: 08/08/2016] [Accepted: 09/15/2016] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND High glucose (HG) often induces unfavorable effects on proliferation and differentiation of mesenchymal stem cells (MSCs). This study aimed to explore potential molecular pathways underlying HG functional mechanism during osteogenic differentiation of MSCs, involving lncRNA AK028326 and CXCL13. METHODS Murine bone marrow-derived MSCs were cultured in osteogenic-inducing medium supplemented with high glucose level at 25mM or 5.5mM as normal control. Expression levels of lncRNA AK028326 and CXCL13 were measured by using real-time PCR. The mineralized nodule formation and alkaline phosphatase (ALP) activity were detected after 21 and 7days of incubation respectively. Western blot were also performed to determine the expression of CXCL13 and osteogenic gene markers. Plasmid pcDNAs and small interference RNAs were transfected as indicated for functional analysis of AK028326 and CXCL13. RESULTS HG suppressed the expression of AK028326 and CXCL13 in MSCs in a time-dependent manner, and also the mineralization, ALP activity, and osteogenic gene expression, which could be reversed by overexpression of AK028326 or CXCL13. CXCL13 expression was positively regulated by AK028326 at both mRNA and protein levels. Moreover, CXCL13 mediated the positive regulation of AK028326 on osteogenic gene expression in MSCs and MC3T3-E1 cells, mineralization and ALP activity in MSCs and also HG-induced inhibitory effects during MSCs differentiation into osteoblast. CONCLUSION HG could inhibit osteogenic differentiation of MSCs via inhibited expression of CXCL13 mediated by lncRNA AK028326, thereby providing new insights into the molecular mechanism of many osteogenesis-related diseases especially for patients with hyperglycemia.
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Choi BD, Lee SY, Jeong SJ, Lim DS, Cha HJ, Chung WG, Jeong MJ. Secretory leukocyte protease inhibitor promotes differentiation and mineralization of MC3T3-E1 preosteoblasts on a titanium surface. Mol Med Rep 2016; 14:1241-6. [PMID: 27279420 DOI: 10.3892/mmr.2016.5381] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Accepted: 03/08/2016] [Indexed: 11/06/2022] Open
Abstract
Mineralized bone matrix constituted with collagenous and non-collagenous proteins was synthesized by osteoblasts differentiated from mesenchymal stem cells. Secretory leukocyte protease inhibitor (SLPI), a serine protease inhibitor, promotes cell migration and proliferation, and suppresses the inflammatory response. Recent studies reported that SLPI regulates the formation of dentin and mineralization by odontoblasts and increases the adhesion and viability of preosteoblasts on a titanium (Ti) surface. Ti and its alloys are widely used implant materials in artificial joints and dental implants owing to their biocompatibility with bone. Therefore, this study aimed to examine whether SLPI can be an effective molecule in promoting differentiation and mineralization of osteoblasts on a Ti surface. In order to investigate the effects of SLPI on osteoblasts, an MTT assay, PCR, western blotting and Alizarin Red S staining were performed. The results demonstrated that SLPI increased the viability of osteoblasts during differentiation on Ti discs compared with that of the control. The expression levels of SLPI mRNA and protein were higher than that of the control after treatment of osteoblasts with SLPI on Ti discs during differentiation. SLPI increased the formation of mineralized nodules and mRNA expression of alkaline phosphatase, dentin sialophosphoprotein, dentin matrix protein 1, bone sialoprotein, and collagen I in osteoblasts on Ti discs compared with that of the control. In conclusion, SLPI increases the viability and promotes the differentiation and mineralization of osteoblasts on Ti surfaces, suggesting that SLPI is an effective molecule for achieving successful osseointegration between osteoblasts and a Ti surface.
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Affiliation(s)
- Baik-Dong Choi
- Department of Oral Histology and Developmental Biology, School of Dentistry, Chosun University, Gwangju 501‑759, Republic of Korea
| | - Seung-Yeon Lee
- Department of Oral Histology and Developmental Biology, School of Dentistry, Chosun University, Gwangju 501‑759, Republic of Korea
| | - Soon-Jeong Jeong
- Department of Dental Hygiene, Youngsan University, Yangsan, Gyeongsangnam‑do 626‑790, Republic of Korea
| | - Do-Seon Lim
- Department of Dental Hygiene, Eulji University, Seongnam, Gyeonggi 461‑713, Republic of Korea
| | - Hee-Jae Cha
- Department of Parasitology and Genetics, College of Medicine, Kosin University, Busan 602‑072, Republic of Korea
| | - Won-Gyun Chung
- Department of Dental Hygiene, Wonju College of Medicine, Yonsei University, Wonju, Gangwon 220‑701, Republic of Korea
| | - Moon-Jin Jeong
- Department of Oral Histology and Developmental Biology, School of Dentistry, Chosun University, Gwangju 501‑759, Republic of Korea
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Porous microcarrier-enabled three-dimensional culture of chondrocytes for cartilage engineering: A feasibility study. Tissue Eng Regen Med 2016; 13:235-241. [PMID: 30603404 DOI: 10.1007/s13770-016-0038-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 03/19/2016] [Accepted: 03/28/2016] [Indexed: 10/21/2022] Open
Abstract
Cartilage repair is substantially intractable due to poor self-healing ability. Porous microspheres can be a fascinating three-dimensional matrix for cell culture and injectable carrier in cartilage engineering. In this study, we assessed the feasible use of porous biopolymer microspheres for chondrocyte carriers. When seeded onto the blended biopolymer microspheres and followed by a dynamic spinner flask culture, the chondrocytes showed robust growth behaviors during the culture period. The gene expressions of SOX9, type II collagen, and aggrecan were significantly upregulated after 2-week of culture. Furthermore, immunolocalization of type II collagen and secretion of glycosaminolglycan became prominent. The results suggest the feasible usefulness of the porous microspheres as the cell culture matrix and the subsequent delivery into cartilage defects.
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Poveda-Reyes S, Moulisova V, Sanmartín-Masiá E, Quintanilla-Sierra L, Salmerón-Sánchez M, Ferrer GG. Gelatin-Hyaluronic Acid Hydrogels with Tuned Stiffness to Counterbalance Cellular Forces and Promote Cell Differentiation. Macromol Biosci 2016; 16:1311-24. [DOI: 10.1002/mabi.201500469] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Revised: 03/29/2016] [Indexed: 12/30/2022]
Affiliation(s)
- Sara Poveda-Reyes
- Center for Biomaterials and Tissue Engineering (CBIT); Universitat Politècnica de València; Valencia 46022
| | - Vladimira Moulisova
- Division of Biomedical Engineering; School of Engineering; University of Glasgow; Glasgow G12 8QQ UK
| | - Esther Sanmartín-Masiá
- Center for Biomaterials and Tissue Engineering (CBIT); Universitat Politècnica de València; Valencia 46022
| | - Luis Quintanilla-Sierra
- BIOFORGE Group; Centro de Investigación Científica y Desarrollo Tecnológico; Campus de Miguel Delibes; Universidad de Valladolid; Valladolid 47011 Spain
| | - Manuel Salmerón-Sánchez
- Division of Biomedical Engineering; School of Engineering; University of Glasgow; Glasgow G12 8QQ UK
| | - Gloria Gallego Ferrer
- Center for Biomaterials and Tissue Engineering (CBIT); Universitat Politècnica de València; Valencia 46022
- Biomedical Research Networking Center in Bioengineering; Biomaterials and Nanomedicine (CIBER-BBN); Valencia 46022 Spain
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Jang JY, Park SH, Park JH, Lee BK, Yun JH, Lee B, Kim JH, Min BH, Kim MS. In Vivo Osteogenic Differentiation of Human Dental Pulp Stem Cells Embedded in an Injectable In Vivo-Forming Hydrogel. Macromol Biosci 2016; 16:1158-69. [DOI: 10.1002/mabi.201600001] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Revised: 03/10/2016] [Indexed: 12/21/2022]
Affiliation(s)
- Ja Yong Jang
- Department of Molecular Science and Technology; Ajou University; Suwon 443-759 Korea
| | - Seung Hun Park
- Department of Molecular Science and Technology; Ajou University; Suwon 443-759 Korea
| | - Ji Hoon Park
- Department of Molecular Science and Technology; Ajou University; Suwon 443-759 Korea
| | - Bo Keun Lee
- Department of Molecular Science and Technology; Ajou University; Suwon 443-759 Korea
| | - Jeong-Ho Yun
- Department of Periodontology; School of Dentistry and Institute of Oral Bioscience; Chonbuk National University; Jeonju 561-712 Korea
| | - Bong Lee
- Department of Polymer Engineering; Pukyong National University; Busan 608-739 Korea
| | - Jae Ho Kim
- Department of Molecular Science and Technology; Ajou University; Suwon 443-759 Korea
| | - Byoung Hyun Min
- Department of Molecular Science and Technology; Ajou University; Suwon 443-759 Korea
| | - Moon Suk Kim
- Department of Molecular Science and Technology; Ajou University; Suwon 443-759 Korea
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Zhou X, Tao Y, Wang J, Liu D, Liang C, Li H, Chen Q. Three-dimensional scaffold of type II collagen promote the differentiation of adipose-derived stem cells into a nucleus pulposus-like phenotype. J Biomed Mater Res A 2016; 104:1687-93. [PMID: 26940048 DOI: 10.1002/jbm.a.35701] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 02/07/2016] [Accepted: 02/26/2016] [Indexed: 12/28/2022]
Abstract
Type II collagen is reported to have the capability of guiding adipose-derived stem cells (ADSCs) to differentiate towards a nucleus pulposus (NP)-like phenotype. So this study aimed to establish a three-dimensional (3D) collagen scaffold using N,N-(3-dimethylaminopropyl)-N'-ethyl carbodiimide and N-hydroxysuccinimide (EDAC/NHS) to increase the efficiency of ADSC differentiation into NP-like cells. Physical properties, such as porosity, biodegradation, and microstructure, and biological characteristics such as cytotoxicity, cell proliferation, and expression of relevant genes and proteins were measured to evaluate the efficacy of different scaffolds. Collagen scaffolds cross-linked with EDAC/NHS exhibited higher biological stability, better spatial structure, and higher gene and protein expression of functional markers such as aggrecan, SOX9 and COL2 than those of other groups. Based on the results, freeze-dried type II collagen cross-linked with EDAC/NHS formed the best 3D scaffold, for inducing ADSC proliferation and differentiation toward a NP-like phenotype. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 104A: 1687-1693, 2016.
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Affiliation(s)
- Xiaopeng Zhou
- Department of Orthopedic Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, 88 Jiefang Road, Hangzhou, Zhejiang, 310009, People's Republic of China
| | - Yiqing Tao
- Department of Orthopedic Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, 88 Jiefang Road, Hangzhou, Zhejiang, 310009, People's Republic of China
| | - Jingkai Wang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, 88 Jiefang Road, Hangzhou, Zhejiang, 310009, People's Republic of China
| | - Dongyu Liu
- Department of Orthopedic Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, 88 Jiefang Road, Hangzhou, Zhejiang, 310009, People's Republic of China
| | - Chengzhen Liang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, 88 Jiefang Road, Hangzhou, Zhejiang, 310009, People's Republic of China
| | - Hao Li
- Department of Orthopedic Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, 88 Jiefang Road, Hangzhou, Zhejiang, 310009, People's Republic of China
| | - Qixin Chen
- Department of Orthopedic Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, 88 Jiefang Road, Hangzhou, Zhejiang, 310009, People's Republic of China
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Zhao X, Lang Q, Yildirimer L, Lin ZY(W, Cui W, Annabi N, Ng KW, Dokmeci MR, Ghaemmaghami AM, Khademhosseini A. Photocrosslinkable Gelatin Hydrogel for Epidermal Tissue Engineering. Adv Healthc Mater 2016; 5:108-18. [PMID: 25880725 PMCID: PMC4608855 DOI: 10.1002/adhm.201500005] [Citation(s) in RCA: 478] [Impact Index Per Article: 59.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2015] [Revised: 02/27/2015] [Indexed: 11/07/2022]
Abstract
Natural hydrogels are promising scaffolds to engineer epidermis. Currently, natural hydrogels used to support epidermal regeneration are mainly collagen- or gelatin-based, which mimic the natural dermal extracellular matrix but often suffer from insufficient and uncontrollable mechanical and degradation properties. In this study, a photocrosslinkable gelatin (i.e., gelatin methacrylamide (GelMA)) with tunable mechanical, degradation, and biological properties is used to engineer the epidermis for skin tissue engineering applications. The results reveal that the mechanical and degradation properties of the developed hydrogels can be readily modified by varying the hydrogel concentration, with elastic and compressive moduli tuned from a few kPa to a few hundred kPa, and the degradation times varied from a few days to several months. Additionally, hydrogels of all concentrations displayed excellent cell viability (>90%) with increasing cell adhesion and proliferation corresponding to increases in hydrogel concentrations. Furthermore, the hydrogels are found to support keratinocyte growth, differentiation, and stratification into a reconstructed multilayered epidermis with adequate barrier functions. The robust and tunable properties of GelMA hydrogels suggest that the keratinocyte laden hydrogels can be used as epidermal substitutes, wound dressings, or substrates to construct various in vitro skin models.
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Affiliation(s)
- Xin Zhao
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston 02139, MA, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge 02139, MA, USA
- Division of Immunology, School of Life Sciences, Faculty of Medicine and Health Sciences, Queen's Medical Centre, University of Nottingham, Nottingham NG7 2UH, United Kingdom
| | - Qi Lang
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston 02139, MA, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge 02139, MA, USA
| | - Lara Yildirimer
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston 02139, MA, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge 02139, MA, USA
| | - Zhi Yuan (William) Lin
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston 02139, MA, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge 02139, MA, USA
| | - Wenguo Cui
- Orthopedic Institute, Soochow University, 708 Renmin Rd, Suzhou, Jiangsu 215006, China
| | - Nasim Annabi
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston 02139, MA, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge 02139, MA, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston 02115, MA, USA
| | - Kee Woei Ng
- School of Materials Science and Engineering, Nanyang Technological University, N4.1 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Mehmet R. Dokmeci
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston 02139, MA, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge 02139, MA, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston 02115, MA, USA
| | - Amir M. Ghaemmaghami
- Division of Immunology, School of Life Sciences, Faculty of Medicine and Health Sciences, Queen's Medical Centre, University of Nottingham, Nottingham NG7 2UH, United Kingdom
| | - Ali Khademhosseini
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston 02139, MA, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge 02139, MA, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston 02115, MA, USA
- Department of Physics, King Abdulaziz University, Jeddah 21569, Saudi Arabia
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Lee JH, Lee YJ, Cho HJ, Kim DW, Shin H. The incorporation of bFGF mediated by heparin into PCL/gelatin composite fiber meshes for guided bone regeneration. Drug Deliv Transl Res 2016; 5:146-59. [PMID: 25787740 DOI: 10.1007/s13346-013-0154-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The concept of guided bone regeneration facilitated by barrier membranes has been widely considered to achieve enhanced bone healing in maxillofacial surgery. However, the currently available membranes are limited in their active regulation of cellular activities. In this study, we fabricated polycaprolactone/gelatin composite electrospun nanofibers incorporated with basic fibroblast growth factor (bFGF) to direct bone regeneration. The fibrous morphology was maintained after the crosslinking and subsequent conjugation of heparin. Release of bFGF from electrospun nanofibers without heparin resulted in a spontaneous burst, while the heparin-mediated release of bFGF decreased the burst release in 24 h. The bFGF released from the nanofibers enhanced the proliferation and migration of human mesenchymal stem cells as well as the tubule formation of human umbilical cord blood cells. The subcutaneous implantation of fibers incorporated with bFGF mobilized a large number of cells positive for CD31 and smooth muscle alpha actin within 2 weeks. The effect of the nanofibers incorporated with bFGF on bone regeneration was evaluated on a calvarial critical size defect model. As compared to the mice that received fibers without bFGF, which presented minimal new bone formation (5.36 ± 3.4 % of the defect), those that received implants of heparinized nanofibers incorporated with 50 or 100 ng/mL bFGF significantly enhanced new bone formation (10.82 ± 2.2 and 17.55 ± 6.08 %). Taken together, our results suggest that the electrospun nanofibers incorporating bFGF have the potential to be used as an advanced membrane that actively enhances bone regeneration.
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Affiliation(s)
- Ji-hye Lee
- Department of Bioengineering, Hanyang University, 17 Haengdang-dong, Seongdong-gu, Seoul, 133-791, South Korea
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Synergistic Effects of BMP9 and miR-548d-5p on Promoting Osteogenic Differentiation of Mesenchymal Stem Cells. BIOMED RESEARCH INTERNATIONAL 2015; 2015:309747. [PMID: 26609524 PMCID: PMC4644537 DOI: 10.1155/2015/309747] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2015] [Accepted: 06/17/2015] [Indexed: 01/13/2023]
Abstract
Various stimulators have been reported to promote MSC osteogenic differentiation via different pathways such as bone morphogenetic protein 9 (BMP9) through influencing COX-2 and miR-548d-5p through targeting peroxisome proliferator-activated receptor-γ (PPARγ). Whether synergistic effects between BMP9 and miR-548d-5p existed in promoting osteogenesis from MSCs was unclear. In the study, the potential synergistic effects of BMP9 and miR-548d-5p on human MSC differentiation were investigated. Osteogenic differentiation of MSCs treated with BMP9 or miR-548d-5p was detected with multimodality of methods. The results demonstrated that BMP9 and miR-548d-5p significantly influenced COX-2 and PPARγ, respectively. BMP9 also influenced the expression of PPARγ, but no significant effect of miR-548d-5p on COX-2 was observed. When BMP9 and miR-548d-5p were combined, more potent effects on both COX-2 and PPARγ were observed than BMP9 or miR-548d-5p alone. Consistently, osteogenic analysis at different timepoints demonstrated that osteogenic genes, ALP activity, calcium deposition, OPN protein, and matrix mineralization were remarkably upregulated by BMP9/miR-548d-5p compared with BMP9 or miR-548d-5p alone, indicating the synergetic effects of BMP9 and miR-548d-5p on osteogenic differentiation of MSCs. Our study demonstrated that regulating different osteogenic regulators may be an effective strategy to promote bone tissue regeneration for bone defects.
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Le Blanc S, Simann M, Jakob F, Schütze N, Schilling T. Fibroblast growth factors 1 and 2 inhibit adipogenesis of human bone marrow stromal cells in 3D collagen gels. Exp Cell Res 2015; 338:136-48. [PMID: 26384550 DOI: 10.1016/j.yexcr.2015.09.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Revised: 08/24/2015] [Accepted: 09/13/2015] [Indexed: 01/22/2023]
Abstract
Multipotent human bone marrow stromal cells (hBMSCs) are the common progenitors of osteoblasts and adipocytes. A shift in hBMSC differentiation in favor of adipogenesis may contribute to the bone loss and marrow fat accumulation observed in aging and osteoporosis. Hence, the identification of factors modulating marrow adipogenesis is of great therapeutic interest. Fibroblast growth factors 1 (FGF1) and 2 (FGF2) play important roles in several cellular processes including differentiation. Their role in adipogenesis is, however, still unclear given the contradictory reports found in the literature. In this work, we investigated the effect of FGF signaling on hBMSC adipogenesis in a 3D collagen gel system to mimic the natural microenvironment. We successfully established adipogenic differentiation of hBMSC embedded in type I collagen gels. We found that exogenous FGF1 and FGF2 exerted an inhibitory effect on lipid droplet accumulation and gene expression of adipogenic markers, which was abolished by pharmacological blocking of FGF receptor (FGFR) signaling. FGF treatment also affected the expression of the matrix metalloproteinase 13 (MMP13) and the tissue inhibitor of metalloproteinases 1 (TIMP1), altering the MMP/TIMP balance, which modulates collagen processing and turnover. FGF1- and FGF2-mediated inhibition of differentiation was, however, not restricted to adipogenesis since FGF1 and FGF2 treatment also resulted in the inhibition of the osteogenic differentiation in collagen gels. We conclude that FGFR signaling inhibits the in vitro adipogenic commitment of hBMSCs, downregulating core differentiation markers and altering ECM composition.
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Affiliation(s)
- Solange Le Blanc
- Orthopedic Center for Musculoskeletal Research, Orthopedic Department, University of Wuerzburg, Brettreichstr. 11, 97074 Wuerzburg, Germany.
| | - Meike Simann
- Orthopedic Center for Musculoskeletal Research, Orthopedic Department, University of Wuerzburg, Brettreichstr. 11, 97074 Wuerzburg, Germany.
| | - Franz Jakob
- Orthopedic Center for Musculoskeletal Research, Orthopedic Department, University of Wuerzburg, Brettreichstr. 11, 97074 Wuerzburg, Germany.
| | - Norbert Schütze
- Orthopedic Center for Musculoskeletal Research, Orthopedic Department, University of Wuerzburg, Brettreichstr. 11, 97074 Wuerzburg, Germany.
| | - Tatjana Schilling
- Orthopedic Center for Musculoskeletal Research, Orthopedic Department, University of Wuerzburg, Brettreichstr. 11, 97074 Wuerzburg, Germany.
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Reinwald Y, Leonard KHL, Henstock JR, Whiteley JP, Osborne JM, Waters SL, Levesque P, El Haj AJ. Evaluation of the growth environment of a hydrostatic force bioreactor for preconditioning of tissue-engineered constructs. Tissue Eng Part C Methods 2015; 21:1-14. [PMID: 24967717 DOI: 10.1089/ten.tec.2013.0476] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Bioreactors have been widely acknowledged as valuable tools to provide a growth environment for engineering tissues and to investigate the effect of physical forces on cells and cell-scaffold constructs. However, evaluation of the bioreactor environment during culture is critical to defining outcomes. In this study, the performance of a hydrostatic force bioreactor was examined by experimental measurements of changes in dissolved oxygen (O2), carbon dioxide (CO2), and pH after mechanical stimulation and the determination of physical forces (pressure and stress) in the bioreactor through mathematical modeling and numerical simulation. To determine the effect of hydrostatic pressure on bone formation, chick femur skeletal cell-seeded hydrogels were subjected to cyclic hydrostatic pressure at 0-270 kPa and 1 Hz for 1 h daily (5 days per week) over a period of 14 days. At the start of mechanical stimulation, dissolved O2 and CO2 in the medium increased and the pH of the medium decreased, but remained within human physiological ranges. Changes in physiological parameters (O2, CO2, and pH) were reversible when medium samples were placed in a standard cell culture incubator. In addition, computational modeling showed that the distribution and magnitude of physical forces depends on the shape and position of the cell-hydrogel constructs in the tissue culture format. Finally, hydrostatic pressure was seen to enhance mineralization of chick femur skeletal cell-seeded hydrogels.
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Affiliation(s)
- Yvonne Reinwald
- 1 Institute of Science and Technology in Medicine, University of Keele , Stoke-on-Trent, United Kingdom
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Yeon Kwon D, Seon Kwon J, Hun Park S, Hun Park J, Hee Jang S, Yun Yin X, Yun JH, Ho Kim J, Hyun Min B, Hee Lee J, Kim WD, Suk Kim M. A computer-designed scaffold for bone regeneration within cranial defect using human dental pulp stem cells. Sci Rep 2015; 5:12721. [PMID: 26234712 PMCID: PMC4522608 DOI: 10.1038/srep12721] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Accepted: 07/06/2015] [Indexed: 12/26/2022] Open
Abstract
A computer-designed, solvent-free scaffold offer several potential advantages such as ease of customized manufacture and in vivo safety. In this work, we firstly used a computer-designed, solvent-free scaffold and human dental pulp stem cells (hDPSCs) to regenerate neo-bone within cranial bone defects. The hDPSCs expressed mesenchymal stem cell markers and served as an abundant source of stem cells with a high proliferation rate. In addition, hDPSCs showed a phenotype of differentiated osteoblasts in the presence of osteogenic factors (OF). We used solid freeform fabrication (SFF) with biodegradable polyesters (MPEG-(PLLA-co-PGA-co-PCL) (PLGC)) to fabricate a computer-designed scaffold. The SFF technology gave quick and reproducible results. To assess bone tissue engineering in vivo, the computer-designed, circular PLGC scaffold was implanted into a full-thickness cranial bone defect and monitored by micro-computed tomography (CT) and histology of the in vivo tissue-engineered bone. Neo-bone formation of more than 50% in both micro-CT and histology tests was observed at only PLGC scaffold with hDPSCs/OF. Furthermore, the PLGC scaffold gradually degraded, as evidenced by the fluorescent-labeled PLGC scaffold, which provides information to tract biodegradation of implanted PLGC scaffold. In conclusion, we confirmed neo-bone formation within a cranial bone defect using hDPSCs and a computer-designed PLGC scaffold.
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Affiliation(s)
- Doo Yeon Kwon
- Department of Molecular Science and Technology, Ajou University, Suwon 443-759, Korea
| | - Jin Seon Kwon
- Department of Molecular Science and Technology, Ajou University, Suwon 443-759, Korea
| | - Seung Hun Park
- Department of Molecular Science and Technology, Ajou University, Suwon 443-759, Korea
| | - Ji Hun Park
- Department of Molecular Science and Technology, Ajou University, Suwon 443-759, Korea
| | - So Hee Jang
- Department of Molecular Science and Technology, Ajou University, Suwon 443-759, Korea
- Nature-Inspired Mechanical System Team, Korea Institute of Machinery and Materials, Daejeon 305-343, Korea
| | - Xiang Yun Yin
- Department of Molecular Science and Technology, Ajou University, Suwon 443-759, Korea
| | - Jeong-Ho Yun
- Department of Dentistry, School of Medicine, Inha University, Incheon 440-711, Korea
| | - Jae Ho Kim
- Department of Molecular Science and Technology, Ajou University, Suwon 443-759, Korea
| | - Byoung Hyun Min
- Department of Molecular Science and Technology, Ajou University, Suwon 443-759, Korea
| | - Jun Hee Lee
- Nature-Inspired Mechanical System Team, Korea Institute of Machinery and Materials, Daejeon 305-343, Korea
| | - Wan-Doo Kim
- Nature-Inspired Mechanical System Team, Korea Institute of Machinery and Materials, Daejeon 305-343, Korea
| | - Moon Suk Kim
- Department of Molecular Science and Technology, Ajou University, Suwon 443-759, Korea
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Yu HS, Lee EJ, Seo SJ, Knowles JC, Kim HW. Feasibility of silica-hybridized collagen hydrogels as three-dimensional cell matrices for hard tissue engineering. J Biomater Appl 2015; 30:338-50. [PMID: 26079389 DOI: 10.1177/0885328215590108] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Exploiting hydrogels for the cultivation of stem cells, aiming to provide them with physico-chemical cues suitable for osteogenesis, is a critical demand for bone engineering. Here, we developed hybrid compositions of collagen and silica into hydrogels via a simple sol-gel process. The physico-chemical and mechanical properties, degradation behavior, and bone-bioactivity were characterized in-depth; furthermore, the in vitro mesenchymal stem cell growth and osteogenic differentiation behaviors within the 3D hybrid gel matrices were communicated for the first time. The hydrolyzed and condensed silica phase enabled chemical links with the collagen fibrils to form networked hybrid gels. The hybrid gels showed improved chemical stability and greater resistance to enzymatic degradation. The in vitro apatite-forming ability was enhanced by the hybrid composition. The viscoelastic mechanical properties of the hybrid gels were significantly improved in terms of the deformation resistance to an applied load and the modulus values under a dynamic oscillation. Mesenchymal stem cells adhered well to the hybrid networks and proliferated actively with substantial cytoskeletal extensions within the gel matrices. Of note, the hybrid gels substantially reduced the cell-mediated gel contraction behaviors, possibly due to the stiffer networks and higher resistance to cell-mediated degradation. Furthermore, the osteogenic differentiation of cells, including the expression of bone-associated genes and protein, was significantly upregulated within the hybrid gel matrices. Together with the physico-chemical and mechanical properties, the cellular behaviors observed within 3D gel matrices, being different from the previous approaches reported on 2D substrates, provide new information on the feasibility and usefulness of the silica-collagen system for stem cell culture and tissue engineering of hard tissues.
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Affiliation(s)
- Hye-Sun Yu
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, Republic of Korea Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University Graduate School, Cheonan, Republic of Korea
| | - Eun-Jung Lee
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, Republic of Korea Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University Graduate School, Cheonan, Republic of Korea
| | - Seog-Jin Seo
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, Republic of Korea Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University Graduate School, Cheonan, Republic of Korea
| | - Jonathan C Knowles
- Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University Graduate School, Cheonan, Republic of Korea Division of Biomaterials and Tissue Engineering, Eastman Dental Institute, University College London, London, UK
| | - Hae-Won Kim
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, Republic of Korea Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University Graduate School, Cheonan, Republic of Korea Department of Biomaterials Science, College of Dentistry, Dankook University, Cheonan, Republic of Korea
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Cao C, Song Y, Yao Q, Yao Y, Wang T, Huang B, Gong P. Preparation and preliminaryin vitroevaluation of a bFGF-releasing heparin-conjugated poly(ε-caprolactone) membrane for guided bone regeneration. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2015; 26:600-16. [DOI: 10.1080/09205063.2015.1049044] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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43
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Therapeutic-designed electrospun bone scaffolds: mesoporous bioactive nanocarriers in hollow fiber composites to sequentially deliver dual growth factors. Acta Biomater 2015; 16:103-16. [PMID: 25617805 DOI: 10.1016/j.actbio.2014.12.028] [Citation(s) in RCA: 91] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Revised: 11/28/2014] [Accepted: 12/30/2014] [Indexed: 11/21/2022]
Abstract
A novel therapeutic design of nanofibrous scaffolds, holding a capacity to load and deliver dual growth factors, that targets bone regeneration is proposed. Mesoporous bioactive glass nanospheres (MBNs) were used as bioactive nanocarriers for long-term delivery of the osteogenic enhancer fibroblast growth factor 18 (FGF18). Furthermore, a core-shell structure of a biopolymer fiber made of polyethylene oxide/polycaprolactone was introduced to load FGF2, another type of cell proliferative and angiogenic growth factor, safely within the core while releasing it more rapidly than FGF18. The prepared MBNs showed enlarged mesopores of about 7 nm, with a large surface area and pore volume. The protein-loading capacity of MBNs was as high as 13% when tested using cytochrome C, a model protein. The protein-loaded MBNs were smoothly incorporated within the core of the fiber by electrospinning, while preserving a fibrous morphology. The incorporation of MBNs significantly increased the apatite-forming ability and mechanical properties of the core-shell fibers. The possibility of sequential delivery of two experimental growth factors, FGF2 and FGF18, incorporated either within the core-shell fiber (FGF2) or within MBNs (FGF18), was demonstrated by the use of cytochrome C. In vitro studies using rat mesenchymal stem cells demonstrated the effects of the FGF2-FGF18 loadings: significant stimulation of cell proliferation as well as the induction of alkaline phosphate activity and cellular mineralization. An in vivo study performed on rat calvarium defects for 6 weeks demonstrated that FGF2-FGF18-loaded fiber scaffolds had significantly higher bone-forming ability, in terms of bone volume and density. The current design utilizing novel MBN nanocarriers with a core-shell structure aims to release two types of growth factors, FGF2 and FGF18, in a sequential manner, and is considered to provide a promising therapeutic scaffold platform that is effective for bone regeneration.
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44
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Shao S, Cui E, Xue H, Huang H, Liu G. Sustained knock down of PPARγ and bFGF presentation in collagen hydrogels promote MSC osteogenesis. Open Life Sci 2015. [DOI: 10.1515/biol-2015-0049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractCollagen hydrogels were considered as favourable scaffolding for tissue engineering. It was demonstrated that cytokines and siRNAs could be efficiently retained by collagen hydrogels for controlled release thereby enhancing their bioactivities. Basic fibroblast growth factor (bFGF) was a stimulator for osteogenic differentiation of mesenchymal stem cells (MSC), and PPARγ was a key regulator in MSC osteogenic differentiation. However, whether bFGF and PPARγ could play synergetic roles within a 3D matrix to promote MSC osteogenic differentiation was unknown. In the study, bFGF and PPARγ targeting siRNAs were incorporated into collagen hydrogels for MSC cultivation. Their optimal concentrations in collagen hydrogels were determined. The capacity of bFGF/siRNA-carrying hydrogels in supporting osteogenic differentiation of MSCs was systematically evaluated with multimodality of methods, including flow cytometry, quantitative real-time PCR, Western Blotting, as well as ALP activity and calcium content determination. We demonstrated in 3D collagen hydrogel that both bFGF and siRNA molecules were efficiently retained, strengthening their effects on the incorporated MSCs. Osteogenic analysis demonstrated that the in-situ forming hydrogels carrying bFGF and siRNAs potently promoted osteogenic differentiation of incorporated MSCs, significantly superior to pure collagen and bFGF-carrying collagen. Thus, collagen hydrogels functionalized with bFGF and PPARγ targeting siRNAs may be promising in bone tissue engineering.
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45
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Sun X, Zhao X, Zhao L, Li Q, D'Ortenzio M, Nguyen B, Xu X, Wen Y. Development of a hybrid gelatin hydrogel platform for tissue engineering and protein delivery applications. J Mater Chem B 2015; 3:6368-6376. [PMID: 32262755 DOI: 10.1039/c5tb00645g] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
In this study, to improve the cellular interaction and protein release of gelatin hydrogels, we reported the development of a new hybrid hydrogel platform as a promising tissue engineering scaffold and drug delivery carrier.
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Affiliation(s)
- Xiaodi Sun
- School of Stomatology
- Shandong University
- Jinan
- China
- Shandong Provincial Key Laboratory of Oral Biomedicine
| | - Xin Zhao
- Center for Biomedical Engineering
- Department of Medicine
- Brigham and Women's Hospital
- Harvard Medical School
- Cambridge
| | - Lili Zhao
- Department of Endoscopy
- The First Affiliated Hospital of Nanjing Medical University
- Jiangsu Province Hospital
- Nanjing
- China
| | - Qing Li
- School of Stomatology
- Shandong University
- Jinan
- China
- Shandong Provincial Key Laboratory of Oral Biomedicine
| | | | | | - Xin Xu
- School of Stomatology
- Shandong University
- Jinan
- China
- Shandong Provincial Key Laboratory of Oral Biomedicine
| | - Yong Wen
- School of Stomatology
- Shandong University
- Jinan
- China
- Shandong Provincial Key Laboratory of Oral Biomedicine
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46
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Schlaubitz S, Derkaoui SM, Marosa L, Miraux S, Renard M, Catros S, Le Visage C, Letourneur D, Amédée J, Fricain JC. Pullulan/dextran/nHA macroporous composite beads for bone repair in a femoral condyle defect in rats. PLoS One 2014; 9:e110251. [PMID: 25330002 PMCID: PMC4203774 DOI: 10.1371/journal.pone.0110251] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Accepted: 09/15/2014] [Indexed: 11/29/2022] Open
Abstract
The repair of bone defects is of particular interest for orthopedic, oral, maxillofacial, and dental surgery. Bone loss requiring reconstruction is conventionally addressed through bone grafting. Depending on the size and the location of the defect, this method has limits and risks. Biomaterials can offer an alternative and have features supporting bone repair. Here, we propose to evaluate the cellular penetration and bone formation of new macroporous beads based on pullulan/dextran that has been supplemented with nanocrystalline hydroxyapatite in a rat model. Cross-linked beads of 300–500 µm diameters were used in a lateral femoral condyle defect and analyzed by magnetic resonance imaging, micro-computed tomography, and histology in comparison to the empty defects 15, 30, and 70 days after implantation. Inflammation was absent for both conditions. For empty defects, cellularisation and mineralization started from the periphery of the defect. For the defects containing beads, cellular structures filling out the spaces between the scaffolds with increasing interconnectivity and trabecular-like organization were observed over time. The analysis of calcified sections showed increased mineralization over time for both conditions, but was more pronounced for the samples containing beads. Bone Mineral Density and Bone Mineral Content were both significantly higher at day 70 for the beads in comparison to empty defects as well as compared with earlier time points. Analysis of newly formed tissue around the beads showed an increase of osteoid tissue, measured as percentage of the defect surface. This study suggests that the use of beads for the repair of small size defects in bone may be expanded on to meet the clinical need for a ready-to-use fill-up material that can favor bone formation and mineralization, as well as promote vessel ingrowth into the defect site.
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Affiliation(s)
- Silke Schlaubitz
- CIC 1401, University hospital of Bordeaux/Inserm, Bordeaux, France
| | - Sidi Mohammed Derkaoui
- U1148, LVTS/Inserm, Paris, France
- Près Sorbonne Paris Cité, University of Paris Nord and University Paris Diderot, Paris, France
| | - Lydia Marosa
- U1026 Tissue Bioengineering, University of Bordeaux/Inserm, Bordeaux, France
| | | | - Martine Renard
- CIC 1401, University hospital of Bordeaux/Inserm, Bordeaux, France
| | - Sylvain Catros
- U1026 Tissue Bioengineering, University of Bordeaux/Inserm, Bordeaux, France
- Dental School, University of Bordeaux, Bordeaux, France
| | - Catherine Le Visage
- U1148, LVTS/Inserm, Paris, France
- Près Sorbonne Paris Cité, University of Paris Nord and University Paris Diderot, Paris, France
| | - Didier Letourneur
- U1148, LVTS/Inserm, Paris, France
- Près Sorbonne Paris Cité, University of Paris Nord and University Paris Diderot, Paris, France
| | - Joëlle Amédée
- U1026 Tissue Bioengineering, University of Bordeaux/Inserm, Bordeaux, France
| | - Jean-Christophe Fricain
- U1026 Tissue Bioengineering, University of Bordeaux/Inserm, Bordeaux, France
- Dental School, University of Bordeaux, Bordeaux, France
- * E-mail:
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47
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Therapeutic foam scaffolds incorporating biopolymer-shelled mesoporous nanospheres with growth factors. Acta Biomater 2014; 10:2612-21. [PMID: 24530558 DOI: 10.1016/j.actbio.2014.02.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Revised: 01/29/2014] [Accepted: 02/03/2014] [Indexed: 12/12/2022]
Abstract
A novel therapeutic scaffolding system of engineered nanocarriers within a foam matrix for the long-term and sequential delivery of growth factors is reported. Mesoporous silica nanospheres were first functionalized to have an enlarged mesopore size (12.2nm) and aminated surface, which was then shelled by a biopolymer, poly(lactic acid) (PLA) or poly(ethylene glycol) (PEG), via electrospraying. The hybrid nanocarrier was subsequently combined with collagen to produce foam scaffolds. Bovine serum albumin (BSA), used as a model protein, was effectively loaded within the enlarged nanospheres. The biopolymer shell substantially prolonged the release period of BSA (2-3weeks from shelled nanospheres vs. within 1week from bare nanospheres), and the release rate was highly dependent on the shell composition (PEG>PLA). Collagen foam scaffolding of the shelled nanocarrier further slowed down the protein release, while enabling the incorporation of a rapidly releasing protein, which is effective for sequential protein delivery. Acidic fibroblast growth factor (aFGF), loaded onto the shelled-nanocarrier scaffolds, was released over a month at a highly sustainable rate, profiling a release pattern similar to that of BSA. The biological activity of the aFGF was evidenced by the significant proliferation of osteoblastic precursor cells in the aFGF-releasing scaffolds. Furthermore, the aFGF-delivering scaffolds implanted in rat subcutaneous tissue for 2weeks showed a substantially enhanced invasion of fibroblasts with a homogeneous population. Taken together, it is concluded that the biopolymer encapsulation of mesoporous nanospheres effectively prolongs the release of growth factors over weeks to a month, providing a nanocarrier platform for a long-term growth factor delivery. Moreover, the foam scaffolding of the nanocarrier system is a potential therapeutic three-dimensional matrix for cell culture and tissue engineering.
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48
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Collagen hydrogels incorporated with surface-aminated mesoporous nanobioactive glass: Improvement of physicochemical stability and mechanical properties is effective for hard tissue engineering. Acta Biomater 2013; 9:9508-21. [PMID: 23928332 DOI: 10.1016/j.actbio.2013.07.036] [Citation(s) in RCA: 122] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Revised: 07/20/2013] [Accepted: 07/30/2013] [Indexed: 11/22/2022]
Abstract
Collagen (Col) hydrogels have poor physicochemical and mechanical properties and are susceptible to substantial shrinkage during cell culture, which limits their potential applications in hard tissue engineering. Here, we developed novel nanocomposite hydrogels made of collagen and mesoporous bioactive glass nanoparticles (mBGns) with surface amination, and addressed the effects of mBGn addition (Col:mBG = 2:1, 1:1 and 1:2) and its surface amination on the physicochemical and mechanical properties of the hydrogels. The amination of mBGn was shown to enable chemical bonding with collagen molecules. As a result, the nanocomposite hydrogels exhibited a significantly improved physicochemical and mechanical stability. The hydrolytic and enzymatic degradation of the Col-mBGn hydrogels were slowed down due to the incorporation of mBGn and its surface amination. The mechanical properties of the hydrogels, specifically the resistance to loading as well as the stiffness, significantly increased with the addition of mBGn and its aminated form, as assessed by a dynamic mechanical analysis. Mesenchymal stem cells cultivated within the Col-mBGn hydrogels were highly viable, with enhanced cytoskeletal extensions, due to the addition of surface aminated mBGn. While the Col hydrogel showed extensive shrinkage (down to ∼20% of initial size) during a few days of culture, the shrinkage of the mBGn-added hydrogel was substantially reduced, and the aminated mBGn-added hydrogel had no observable shrinkage over 21 days. Results demonstrated the effective roles of aminated mBGn in significantly improving the physicochemical and mechanical properties of Col hydrogel, which are ultimately favorable for applications in stem cell culture for bone tissue engineering.
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Perez RA, Kim M, Kim TH, Kim JH, Lee JH, Park JH, Knowles JC, Kim HW. Utilizing core-shell fibrous collagen-alginate hydrogel cell delivery system for bone tissue engineering. Tissue Eng Part A 2013; 20:103-14. [PMID: 23924353 DOI: 10.1089/ten.tea.2013.0198] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Three-dimensional matrices that encapsulate and deliver stem cells with defect-tuned formulations are promising for bone tissue engineering. In this study, we designed a novel stem cell delivery system composed of collagen and alginate as the core and shell, respectively. Mesenchymal stem cells (MSCs) were loaded into the collagen solution and then deposited directly into a fibrous structure while simultaneously sheathing with alginate using a newly designed core-shell nozzle. Alginate encapsulation was achieved by the crosslinking within an adjusted calcium-containing solution that effectively preserved the continuous fibrous structure of the inner cell-collagen part. The constructed hydrogel carriers showed a continuous fiber with a diameter of ~700-1000 μm for the core and 200-500 μm for the shell area, which was largely dependent on the alginate concentration (2%-5%) as well as the injection rate (20-80 mL/h). The water uptake capacity of the core-shell carriers was as high as 98%, which could act as a pore channel to supply nutrients and oxygen to the cells. Degradation of the scaffolds showed a weight loss of ~22% at 7 days and ~43% at 14 days, suggesting a possible role as a degradable tissue-engineered construct. The MSCs encapsulated within the collagen core showed excellent viability, exhibiting significant cellular proliferation up to 21 days with levels comparable to those observed in the pure collagen gel matrix used as a control. A live/dead cell assay also confirmed similar percentages of live cells within the core-shell carrier compared to those in the pure collagen gel, suggesting the carrier was cell compatible and was effective for maintaining a cell population. Cells allowed to differentiate under osteogenic conditions expressed high levels of bone-related genes, including osteocalcin, bone sialoprotein, and osteopontin. Further, when the core-shell fibrous carriers were implanted in a rat calvarium defect, the bone healing was significantly improved when the MSCs were encapsulated, and even more so after an osteogenic induction of MSCs before implantation. Based on these results, the newly designed core-shell collagen-alginate fibrous carrier is considered promising to enable the encapsulation of tissue cells and their delivery into damaged target tissues, including bone with defect-tunability for bone tissue engineering.
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Affiliation(s)
- Roman A Perez
- 1 Institute of Tissue Regeneration Engineering (ITREN), Dankook University , Cheonan, South Korea
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Osathanon T, Nowwarote N, Manokawinchoke J, Pavasant P. bFGF and JAGGED1 regulate alkaline phosphatase expression and mineralization in dental tissue-derived mesenchymal stem cells. J Cell Biochem 2013; 114:2551-61. [DOI: 10.1002/jcb.24602] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Accepted: 05/17/2013] [Indexed: 01/26/2023]
Affiliation(s)
| | - Nunthawan Nowwarote
- Mineralized Tissue Research Unit; Chulalongkorn University; Bangkok; 10330; Thailand
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