1
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Aladal M, You W, Huang R, Huang J, Deng Z, Duan L, Wang D, Li W, Sun W. Insights into the implementation of Fibronectin 1 in the cartilage tissue engineering. Biomed Pharmacother 2022; 148:112782. [PMID: 35248846 DOI: 10.1016/j.biopha.2022.112782] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 02/16/2022] [Accepted: 02/28/2022] [Indexed: 11/02/2022] Open
Abstract
Recently, cartilage tissue engineering has become a cornerstone to treat cartilage degeneration and osteoarthritis (OA). Fibronectin1 (FN1) is described as multiple functional glycoproteins that play an essential role in chondrogenic and osteogenic differentiation. Few studies reported the potential of FN1 to enhance tissue engineering and reduce the death of chondrocytes in OA. Further, FN1 possesses multiple binding domains including collagen, integrin, and heparin that can interact with heparan sulfate proteoglycans at the surface of chondrocyte leading to promote cell signaling and differentiation. Recent studies suggested that FN1 can promote chondrocyte differentiation by upregulating TGF-β/PI3K/Akt pathways. Further, FN1 can inhibit the apoptosis of chondrocytes by preventing the release of metalloproteinases through lowering the expression of p-PI3K/PI3K and p-AKT/AKT pathways. However, the use of FN1 in cartilage repair studies using animal models or clinical trials was rarely reported. Therefore, this article provides new insights into the importance of FN1 in cartilage tissue engineering to encourage more studies concerning FN1 in cartilage repair studies. Further, we provided new suggestions for advanced applications of FN1 to treat OA and cartilage degeneration.
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Affiliation(s)
- Murad Aladal
- Hand and Foot Surgery Department, Shenzhen Second People's Hospital (The First Hospital Affiliated to Shenzhen University), Shenzhen 518000, China; Shenzhen Key Laboratory of Tissue Engineering, Shenzhen Laboratory of Digital Orthopedic Engineering, Guangdong Provincial Research Center for Artificial Intelligence and Digital Orthopedic Technology, Shenzhen Second People's Hospital (The First Hospital Affiliated to Shenzhen University, Health Science Center), Shenzhen 518035, China
| | - Wei You
- Hand and Foot Surgery Department, Shenzhen Second People's Hospital (The First Hospital Affiliated to Shenzhen University), Shenzhen 518000, China
| | - Rongxiang Huang
- Hand and Foot Surgery Department, Shenzhen Second People's Hospital (The First Hospital Affiliated to Shenzhen University), Shenzhen 518000, China
| | - Jianghong Huang
- Hand and Foot Surgery Department, Shenzhen Second People's Hospital (The First Hospital Affiliated to Shenzhen University), Shenzhen 518000, China
| | - Zhiqin Deng
- Hand and Foot Surgery Department, Shenzhen Second People's Hospital (The First Hospital Affiliated to Shenzhen University), Shenzhen 518000, China
| | - Li Duan
- Hand and Foot Surgery Department, Shenzhen Second People's Hospital (The First Hospital Affiliated to Shenzhen University), Shenzhen 518000, China
| | - Daping Wang
- Shenzhen Key Laboratory of Tissue Engineering, Shenzhen Laboratory of Digital Orthopedic Engineering, Guangdong Provincial Research Center for Artificial Intelligence and Digital Orthopedic Technology, Shenzhen Second People's Hospital (The First Hospital Affiliated to Shenzhen University, Health Science Center), Shenzhen 518035, China; Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Wencui Li
- Hand and Foot Surgery Department, Shenzhen Second People's Hospital (The First Hospital Affiliated to Shenzhen University), Shenzhen 518000, China.
| | - Wei Sun
- Hand and Foot Surgery Department, Shenzhen Second People's Hospital (The First Hospital Affiliated to Shenzhen University), Shenzhen 518000, China.
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Jing PP, Li YX, Su YH, Liang WL, Leng YX. The role of metal ions in the behavior of bovine serum albumin molecules under physiological environment. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 267:120604. [PMID: 34802930 DOI: 10.1016/j.saa.2021.120604] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 11/03/2021] [Accepted: 11/07/2021] [Indexed: 06/13/2023]
Abstract
Metal ions released from metallic implants can affect the conformation and structural stability of proteins in biological fluids, which eventually affects the biocompatibility of implants. The present study aimed at understanding the interactions between the metal ions (Mn2+, Fe2+, Fe3+, Co2+, Cu2+, and Zn2+) and bovine serum albumin (BSA) molecules in physiological context. The structural information of BSA molecules and the microenvironment of functional groups were investigated using UV, Raman, and circular dichroism spectroscopy. The results revealed that addition of Fe3+, Fe2+, and Cu2+ ions alters the tertiary structure of BSA molecules and exposes the aromatic heterocyclic hydrophobic group of BSA amino acid residues. The addition of Fe3+ and Cu2+ ions results in increased viscosity and decreased intensity of the water peak in the BSA solution. Furthermore, Fe3+ and Cu2+ ions evidently promote the α-helix to β-sheet transformation of BSA molecules due to decreased disulfide bond stability. Tryptophan residues of BSA and metal ions containing BSA (Me+/BSA) solutions were found to be in a hydrophilic environment. Moreover, the addition of metal ions to BSA results in several of tyrosine residues acting as hydrogen-bond donors. Coomassie brilliant blue staining revealed that the addition of Cu2+ ions promotes the aggregation of BSA molecules. The findings of this study will be helpful for evaluating the biocompatibility of metallic implants.
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Affiliation(s)
- P P Jing
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Y X Li
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Y H Su
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - W L Liang
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Y X Leng
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
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Casanova MR, Reis RL, Martins A, Neves NM. Fibronectin Bound to a Fibrous Substrate Has Chondrogenic Induction Properties. Biomacromolecules 2020; 21:1368-1378. [DOI: 10.1021/acs.biomac.9b01546] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Marta R. Casanova
- 3B’s Research Group, I3Bs—Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark—Parque de Ciência e Tecnologia, Zona Industrial da Gandra, Barco, 4805-017 Guimarães, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, 4805-017 Braga/Guimarães, Portugal
| | - Rui L. Reis
- 3B’s Research Group, I3Bs—Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark—Parque de Ciência e Tecnologia, Zona Industrial da Gandra, Barco, 4805-017 Guimarães, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, 4805-017 Braga/Guimarães, Portugal
- The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, Avepark, Barco, 4805-017 Guimarães, Portugal
| | - Albino Martins
- 3B’s Research Group, I3Bs—Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark—Parque de Ciência e Tecnologia, Zona Industrial da Gandra, Barco, 4805-017 Guimarães, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, 4805-017 Braga/Guimarães, Portugal
| | - Nuno M. Neves
- 3B’s Research Group, I3Bs—Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark—Parque de Ciência e Tecnologia, Zona Industrial da Gandra, Barco, 4805-017 Guimarães, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, 4805-017 Braga/Guimarães, Portugal
- The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, Avepark, Barco, 4805-017 Guimarães, Portugal
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4
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Talha M, Ma Y, Kumar P, Lin Y, Singh A. Role of protein adsorption in the bio corrosion of metallic implants - A review. Colloids Surf B Biointerfaces 2019; 176:494-506. [PMID: 30690385 DOI: 10.1016/j.colsurfb.2019.01.038] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 12/14/2018] [Accepted: 01/19/2019] [Indexed: 11/15/2022]
Abstract
Implants are exposed to a complex physiological environment that contains various organic compounds, especially proteins. The adsorption of proteins has an immense influence on the corrosion, biocompatibility and wear properties of implantable metals. Proteins engage in multiple processes that could potentially inhibit or promote metal degradation, depending on the type of proteins, their concentration and the properties of the implant material. In the bio corrosion process, proteins are denatured and transform into a film on the metal surface, inhibiting corrosion. This film is found on many retrieved artificial joints, especially on worn areas, and can protect the passive film from scrapping due to its lubricating effect, thus decreasing tribocorroion. On the other hand, the interactions of metal ions with proteins (and amino acids) create colloidal organometallic complexes. Transport of the complex compounds away from the interface increases dissolution rates; thus, it accelerates the corrosion of metallic implants. The influence of protein adsorption on the corrosion behaviour of metallic biomaterials is presented in this review. Biocompatible metals that are favourably used as implants such as stainless steel, Co-Cr alloys, Ti alloys and biodegradable Mg and Fe alloys are specifically addressed. We have highlighted the adsorption phenomenon of protein on metallic implants, the interaction of proteins with metallic implants and the role of protein adsorption on implant biocorrosion behaviour as well as their wear resistance.
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Affiliation(s)
- Mohd Talha
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500, Sichuan, China; School of Materials Science and Engineering, Southwest Petroleum University, Chengdu, 610500, Sichuan, China
| | - Yucong Ma
- School of Materials Science and Engineering, Southwest Petroleum University, Chengdu, 610500, Sichuan, China
| | - Pardeep Kumar
- Department of Physics, Guru Jambheshwar University of Science and Technology, Hisar, 125001, Haryana, India
| | - Yuanhua Lin
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500, Sichuan, China; School of Materials Science and Engineering, Southwest Petroleum University, Chengdu, 610500, Sichuan, China.
| | - Ambrish Singh
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500, Sichuan, China; School of Materials Science and Engineering, Southwest Petroleum University, Chengdu, 610500, Sichuan, China
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5
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Bergholt NL, Foss M, Saeed A, Gadegaard N, Lysdahl H, Lind M, Foldager CB. Surface chemistry, substrate, and topography guide the behavior of human articular chondrocytes cultured in vitro. J Biomed Mater Res A 2018; 106:2805-2816. [PMID: 29907992 DOI: 10.1002/jbm.a.36467] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 03/22/2018] [Accepted: 05/22/2018] [Indexed: 01/18/2023]
Abstract
Understanding the behavior of chondrocytes in contact with artificial culture surfaces is becoming increasingly important in attaining appropriate ex vivo culture conditions of chondrocytes in cartilage regeneration. Chondrocyte transplantation-based cartilage repair requires efficiently expanded chondrocytes, and the culture surface plays an important role in guiding the behavior of the cell. Micro- and nano-engineered surfaces make it possible to modulate cell behavior. We hypothesized that the combined influence of topography, substrate, and surface chemistry may affect the chondrocyte culturing in terms of proliferation and phenotypic means. Human chondrocytes were cultured on polystyrene fabricated microstructures, flat polydimethylsiloxane (PDMS), or polystyrene treated with fibronectin or oxygen plasma and cultured for 1, 4, 7, and 10 days. The behavior of chondrocytes was evaluated by proliferation, viability, chondrogenic gene expression, and cell morphology. Contrary to our hypothesis, microstructures in polystyrene did not significantly influence the behavior of chondrocytes neither under normoxic- nor hypoxic conditions. However, changes in the substrate stiffness and surface chemistry were found to influence cell viability, gene expression, and morphology of human chondrocytes. Oxygen plasma treatment was the most important parameter followed by the softer substrate type PDMS. The findings indicate the culture of human chondrocytes on softer substratum and surface activation by oxygen plasma may prevent dedifferentiation and may improve chondrocyte transplantation-based cartilage repair. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 2805-2816, 2018.
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Affiliation(s)
| | - Morten Foss
- Interdisciplinary Nanoscience Center, iNANO, University Aarhus, Aarhus, Denmark
| | - Anwer Saeed
- Division of Biomedical Engineering, University of Glasgow, Glasgow, G12 8LT, United Kingdom
| | - Nikolaj Gadegaard
- Division of Biomedical Engineering, University of Glasgow, Glasgow, G12 8LT, United Kingdom
| | - Helle Lysdahl
- Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Martin Lind
- Sports Trauma Clinic, Aarhus University Hospital, Aarhus, Denmark
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6
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Costa E, González-García C, Gómez Ribelles JL, Salmerón-Sánchez M. Maintenance of chondrocyte phenotype during expansion on PLLA microtopographies. J Tissue Eng 2018; 9:2041731418789829. [PMID: 30093985 PMCID: PMC6080075 DOI: 10.1177/2041731418789829] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 06/26/2018] [Indexed: 12/15/2022] Open
Abstract
Articular chondrocytes are difficult to grow, as they lose their characteristic
phenotype following expansion on standard tissue culture plates. Here, we show
that culturing them on surfaces of poly(L-lactic acid) of well-defined
microtopography allows expansion and maintenance of characteristic chondrogenic
markers. We investigated the dynamics of human chondrocyte dedifferentiation on
the different poly(L-lactic acid) microtopographies by the expression of
collagen type I, collagen type II and aggrecan at different culture times. When
seeded on poly(L-lactic acid), chondrocytes maintained their characteristic
hyaline phenotype up to 7 days, which allowed to expand the initial cell
population approximately six times without cell dedifferentiation. Maintenance
of cell phenotype was afterwards correlated to cell adhesion on the different
substrates. Chondrocytes adhesion occurs via the
α5β1 integrin on
poly(L-lactic acid), suggesting cell–fibronectin interactions. However,
α2β1 integrin is
mainly expressed on the control substrate after 1 day of culture, and the
characteristic chondrocytic markers are lost (collagen type II expression is
overcome by the synthesis of collagen type I). Expanding chondrocytes on
poly(L-lactic acid) might be an effective solution to prevent dedifferentiation
and improving the number of cells needed for autologous chondrocyte
transplantation.
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Affiliation(s)
- Elisa Costa
- Centre for Biomaterials and Tissue
Engineering (CBIT), Universitat Politècnica de València, Valencia, Spain
| | | | - José Luis Gómez Ribelles
- Centre for Biomaterials and Tissue
Engineering (CBIT), Universitat Politècnica de València, Valencia, Spain
- Biomedical Research Networking Center in
Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Valencia, Spain
| | - Manuel Salmerón-Sánchez
- Centre for Biomaterials and Tissue
Engineering (CBIT), Universitat Politècnica de València, Valencia, Spain
- Biomedical Research Networking Center in
Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Valencia, Spain
- Centre for the Cellular
Microenvironment, University of Glasgow, Glasgow, UK
- Manuel Salmerón-Sánchez, Centre for the
Cellular Microenvironment, School of Engineering, Rankine Bld, Oakfield Av, G12
8LT, University of Glasgow, Glasgow, UK.
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7
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Hoshiba T, Maruyama H, Sato K, Endo C, Kawazoe N, Chen G, Tanaka M. Maintenance of Cartilaginous Gene Expression of Serially Subcultured Chondrocytes on Poly(2‐Methoxyethyl Acrylate) Analogous Polymers. Macromol Biosci 2017; 17. [DOI: 10.1002/mabi.201700297] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 09/18/2017] [Indexed: 12/14/2022]
Affiliation(s)
- Takashi Hoshiba
- Frontier Center for Organic Materials Yamagata University 4‐3‐16 Jonan Yonezawa Yamagata 992‐8510 Japan
- Innovative Flex Course for Frontier Organic Materials Systems Yamagata University 4‐3‐16 Jonan Yonezawa Yamagata 992‐8510 Japan
- Research Center for Functional Materials National Institute for Materials Science 1‐1 Namiki Tsukuba Ibaraki 305‐0044 Japan
| | - Hiroka Maruyama
- Graduate School of Science and Engineering Yamagata University 4‐3‐16 Jonan Yonezawa Yamagata 992‐8510 Japan
| | - Kazuhiro Sato
- Graduate School of Science and Engineering Yamagata University 4‐3‐16 Jonan Yonezawa Yamagata 992‐8510 Japan
| | - Chiho Endo
- Graduate School of Science and Engineering Yamagata University 4‐3‐16 Jonan Yonezawa Yamagata 992‐8510 Japan
| | - Naoki Kawazoe
- Research Center for Functional Materials National Institute for Materials Science 1‐1 Namiki Tsukuba Ibaraki 305‐0044 Japan
| | - Guoping Chen
- Research Center for Functional Materials National Institute for Materials Science 1‐1 Namiki Tsukuba Ibaraki 305‐0044 Japan
| | - Masaru Tanaka
- Frontier Center for Organic Materials Yamagata University 4‐3‐16 Jonan Yonezawa Yamagata 992‐8510 Japan
- Institute for Materials Chemistry and Engineering Kyushu University 744 Motooka, Nishi‐ku Fukuoka Fukuoka 819‐0395 Japan
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8
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Hoshiba T, Yoshihiro A, Tanaka M. Evaluation of initial cell adhesion on poly (2-methoxyethyl acrylate) (PMEA) analogous polymers. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 28:986-999. [DOI: 10.1080/09205063.2017.1312738] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Takashi Hoshiba
- Frontier Center for Organic Materials, Yamagata University, Yonezawa, Japan
- Innovative Flex Course for Frontier Organic Materials Systems, Yamagata University, Yonezawa, Japan
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science, Tsukuba, Japan
| | - Ayano Yoshihiro
- Faculty of Engineering, Yamagata University, Yonezawa, Japan
| | - Masaru Tanaka
- Frontier Center for Organic Materials, Yamagata University, Yonezawa, Japan
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka, Japan
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9
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Li YC, Lin MW, Yen MH, Fan SMY, Wu JT, Young TH, Cheng JY, Lin SJ. Programmable Laser-Assisted Surface Microfabrication on a Poly(Vinyl Alcohol)-Coated Glass Chip with Self-Changing Cell Adhesivity for Heterotypic Cell Patterning. ACS APPLIED MATERIALS & INTERFACES 2015; 7:22322-22332. [PMID: 26393271 DOI: 10.1021/acsami.5b05978] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Organs are composed of heterotypic cells with patterned architecture that enables intercellular interaction to perform specific functions. In tissue engineering, the ability to pattern heterotypic cells into desired arrangement will allow us to model complex tissues in vitro and to create tissue equivalents for regeneration. This study was aimed at developing a method for fast heterotypic cell patterning with controllable topological manipulation on a glass chip. We found that poly(vinyl alcohol)-coated glass showed a biphasic change in adhesivity to cells in vitro: low adhesivity in the first 24 h and higher adhesivity at later hours due to increased serum protein adsorption. Combining programmable CO2 laser ablation to remove poly(vinyl alcohol) and glass, we were able to create arrays of adhesive microwells of adjustable patterns. We tested whether controllable patterns of epithelial-mesenchymal interaction could be created. When skin dermal papilla cells and fibroblasts were seeded respectively 24 h apart, we were able to pattern these two cells into aggregates of dermal papilla cells in arrays of microwells in a background of fibroblasts sheet. Seeded later, keratinocytes attached to these mesenchymal cells. Keratinocytes contacting dermal papilla cells started to differentiate toward a hair follicle fate, demonstrating patternable epithelial-mesenchymal interaction. This method allows fast adjustable heterotypic cell patterning and surface topology control and can be applied to the investigation of heterotypic cellular interaction and creation of tissue equivalent in vitro.
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Affiliation(s)
- Yi-Chen Li
- Institute of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University , No. 1, Section 1, Jen-Ai Road, Taipei 100, Taiwan
| | - Meng-Wei Lin
- Institute of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University , No. 1, Section 1, Jen-Ai Road, Taipei 100, Taiwan
| | - Meng-Hua Yen
- Institute of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University , No. 1, Section 1, Jen-Ai Road, Taipei 100, Taiwan
- Research Center for Applied Sciences, Academia Sinica , Taipei 115-29, Taiwan
| | - Sabrina Mai-Yi Fan
- Institute of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University , No. 1, Section 1, Jen-Ai Road, Taipei 100, Taiwan
| | - June-Tai Wu
- Institute of Molecular Medicine, College of Medicine, National Taiwan University , Taipei 100, Taiwan
| | - Tai-Horng Young
- Institute of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University , No. 1, Section 1, Jen-Ai Road, Taipei 100, Taiwan
| | - Ji-Yen Cheng
- Research Center for Applied Sciences, Academia Sinica , Taipei 115-29, Taiwan
| | - Sung-Jan Lin
- Institute of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University , No. 1, Section 1, Jen-Ai Road, Taipei 100, Taiwan
- Department of Dermatology, National Taiwan University Hospital and College of Medicine , Taipei 100, Taiwan
- Research Center for Developmental Biology and Regenerative Medicine, National Taiwan University , Taipei 100, Taiwan
- Molecular Imaging Center, National Taiwan University , Taipei 100, Taiwan
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10
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Hoshiba T, Otaki T, Nemoto E, Maruyama H, Tanaka M. Blood-Compatible Polymer for Hepatocyte Culture with High Hepatocyte-Specific Functions toward Bioartificial Liver Development. ACS APPLIED MATERIALS & INTERFACES 2015; 7:18096-18103. [PMID: 26258689 DOI: 10.1021/acsami.5b05210] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The development of bioartificial liver (BAL) is expected because of the shortage of donor liver for transplantation. The substrates for BAL require the following criteria: (a) blood compatibility, (b) hepatocyte adhesiveness, and (c) the ability to maintain hepatocyte-specific functions. Here, we examined blood-compatible poly(2-methoxyethyl acrylate) (PMEA) and poly(tetrahydrofurfuryl acrylate) (PTHFA) (PTHFA) as the substrates for BAL. HepG2, a human hepatocyte model, could adhere on PMEA and PTHFA substrates. The spreading of HepG2 cells was suppressed on PMEA substrates because integrin contribution to cell adhesion on PMEA substrate was low and integrin signaling was not sufficiently activated. Hepatocyte-specific gene expression in HepG2 cells increased on PMEA substrate, whereas the expression decreased on PTHFA substrates due to the nuclear localization of Yes-associated protein (YAP). These results indicate that blood-compatible PMEA is suitable for BAL substrate. Also, PMEA is expected to be used to regulate cell functions for blood-contacting tissue engineering.
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Affiliation(s)
- Takashi Hoshiba
- †Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
- ‡International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Takayuki Otaki
- †Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
| | - Eri Nemoto
- †Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
| | - Hiroka Maruyama
- †Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
| | - Masaru Tanaka
- †Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
- §Institute for Materials Chemistry and Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, Fukuoka 819-0395, Japan
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11
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Ghosal K, Latha MS, Thomas S. Poly(ester amides) (PEAs) – Scaffold for tissue engineering applications. Eur Polym J 2014. [DOI: 10.1016/j.eurpolymj.2014.08.006] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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12
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Consequences of Neutralization on the Proliferation and Cytoskeletal Organization of Chondrocytes on Chitosan-Based Matrices. ACTA ACUST UNITED AC 2011. [DOI: 10.1155/2011/809743] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
In tissue engineering strategies that seek to repair or regenerate native tissues, adhesion of cells to scaffolds or matrices is essential and has the potential to influence subsequent cellular events. Our focus in this paper is to better understand the impact of cellular seeding and adhesion in the context of cartilage tissue engineering. When scaffolds or surfaces are constructed from chitosan, the scaffolds must be first neutralized with sodium hydroxide and then washed copiously to render the surface, cell compatible. We seek to better understand the effect of surface pretreatment regimen on the cellular response to chitosan-based surfaces. In the present paper, sodium hydroxide concentration was varied between 0.1 M and 0.5 M and two different contacting times were studied: 10 minutes and 30 minutes. The different pretreatment conditions were noted to affect cell proliferation, morphology, and cytoskeletal distribution. An optimal set of experimental parameters were noted for improving cell growth on scaffolds.
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13
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Neves SC, Moreira Teixeira LS, Moroni L, Reis RL, Van Blitterswijk CA, Alves NM, Karperien M, Mano JF. Chitosan/poly(epsilon-caprolactone) blend scaffolds for cartilage repair. Biomaterials 2010; 32:1068-79. [PMID: 20980050 DOI: 10.1016/j.biomaterials.2010.09.073] [Citation(s) in RCA: 136] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2010] [Accepted: 09/19/2010] [Indexed: 11/19/2022]
Abstract
Chitosan (CHT)/poly(ɛ-caprolactone) (PCL) blend 3D fiber-mesh scaffolds were studied as possible support structures for articular cartilage tissue (ACT) repair. Micro-fibers were obtained by wet-spinning of three different polymeric solutions: 100:0 (100CHT), 75:25 (75CHT) and 50:50 (50CHT) wt.% CHT/PCL, using a common solvent solution of 100 vol.% of formic acid. Scanning electron microscopy (SEM) analysis showed a homogeneous surface distribution of PCL. PCL was well dispersed throughout the CHT phase as analyzed by differential scanning calorimetry and Fourier transform infrared spectroscopy. The fibers were folded into cylindrical moulds and underwent a thermal treatment to obtain the scaffolds. μCT analysis revealed an adequate porosity, pore size and interconnectivity for tissue engineering applications. The PCL component led to a higher fiber surface roughness, decreased the scaffolds swelling ratio and increased their compressive mechanical properties. Biological assays were performed after culturing bovine articular chondrocytes up to 21 days. SEM analysis, live-dead and metabolic activity assays showed that cells attached, proliferated, and were metabolically active over all scaffolds formulations. Cartilaginous extracellular matrix (ECM) formation was observed in all formulations. The 75CHT scaffolds supported the most neo-cartilage formation, as demonstrated by an increase in glycosaminoglycan production. In contrast to 100CHT scaffolds, ECM was homogenously deposited on the 75CHT and 50CHT scaffolds. Although mechanical properties of the 50CHT scaffold were better, the 75CHT scaffold facilitated better neo-cartilage formation.
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Affiliation(s)
- Sara C Neves
- 3B's Research Group-Biomaterials, Biodegradables and Biomimetics, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Department of Polymer Engineering, University of Minho, AvePark, Zona Industrial da Gandra, S. Cláudio do Barco 4806-909, Caldas das Taipas, Guimarães, Portugal
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Tan GK, Dinnes DL, Butler LN, Cooper-White JJ. Interactions between meniscal cells and a self assembled biomimetic surface composed of hyaluronic acid, chitosan and meniscal extracellular matrix molecules. Biomaterials 2010; 31:6104-18. [DOI: 10.1016/j.biomaterials.2010.04.018] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2010] [Accepted: 04/11/2010] [Indexed: 10/19/2022]
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Hemmrich K, Salber J, Meersch M, Wiesemann U, Gries T, Pallua N, Klee D. Three-dimensional nonwoven scaffolds from a novel biodegradable poly(ester amide) for tissue engineering applications. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2008; 19:257-67. [PMID: 17597366 DOI: 10.1007/s10856-006-0048-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2006] [Accepted: 11/20/2006] [Indexed: 05/16/2023]
Abstract
Biodegradable polyesters are established biomaterials in medicine due to their chemical characteristics and options for material processing. A main problem, however, is the release of acid degradation products during biodegradation with severe local pH-drops and inflammatory reactions. Polyesteramides, in contrast, show a less prominent pH-drop during degradation. In this study, we developed a simple, reproducible synthesis of the poly(ester amide) (PEA) type C starting from epsilon-caprolactame, 1,4-butanediol, and adipic acid in a one-batch two-step reaction and conducted the manufacturing of PEA-derived 3D textile scaffolds applicable for tissue engineering purposes. The thermal and mechanical properties of PEA-type C were analysed and the structural conformity of different batches was confirmed by NMR spectroscopy and size exclusion chromatography. The polymer was formed into nonwovens by textile manufacturing. Cytotoxicity tests and X-ray photoelectron spectroscopy (XPS) were used to analyze the effect of scaffold extraction before cell seeding. The manufactured carriers were seeded with human preadipocytes and examined for cellular proliferation and differentiation. The production of PEA type C successfully occurred via simultaneous ring-opening polymerization of epsilon-caprolactame and polycondensation with 1,4-butanediol and adipic acid at 250 degrees C under high-vacuum. Soxhlet extraction allowed optimal cleaning of nonwoven scaffolds. Extracted PEA-derived matrices were capable of allowing good adherence, proliferation, and differentiation of preadipocytes. These results are encouraging and guidance towards an optimally prepared nonwoven carrier applicable for clinical use.
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Affiliation(s)
- Karsten Hemmrich
- Department of Plastic Surgery and Hand Surgery--Burn Centre, University Hospital of the RWTH Aachen University, Pauwelsstr. 30, 52057 Aachen, Germany.
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Hemmrich K, Meersch M, Wiesemann U, Salber J, Klee D, Gries T, Pallua N. Polyesteramide-Derived Nonwovens as Innovative Degradable Matrices Support Preadipocyte Adhesion, Proliferation, and Differentiation. ACTA ACUST UNITED AC 2006; 12:3557-65. [PMID: 17518691 DOI: 10.1089/ten.2006.12.3557] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Extended soft tissue defects resulting from injuries or tumor resections are still an unresolved problem in plastic and reconstructive surgery because adequate reconstruction is difficult. Immature adipogenic precursor cells, called preadipocytes, which are located between mature adipocytes in adipose tissue, represent a powerful tool for soft tissue engineering because of their ability to proliferate and differentiate into adipose tissue after transplantation. In previous studies, we compared preadipocyte-loaded hyaluronan or collagen biomaterials and their applicability for adipose tissue engineering. Our findings demonstrated successful de novo formation of adipose tissue in vivo but pore size and stiffness were limiting factors not allowing for sufficient cell distribution in the construct. This study presents a nonwoven made of novel bioabsorbable co-poly(ester amide) based on e-caprolactam, adipic acid, and 1,4-butanediol in an innovative 3-dimensional architecture. The material was formed into nonwovens by textile manufacturing using an aerodynamic web formation process and a needle felting technique. Carriers were seeded with human preadipocytes and examined for cellular proliferation and differentiation. In addition, methods of preparing scaffolds for optimal cell interaction were evaluated. Our findings show that polyesteramide-derived nonwovens allow good adherence, proliferation, and differentiation of preadipocytes. These results are promising guidance toward an optimally designed scaffold for in vivo use.
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Affiliation(s)
- K Hemmrich
- Department of Plastic Surgery and Hand Surgery-Burn Centre, University Hospital of the RWTH Aachen University, Aachen, Germany.
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18
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Spiteri CG, Pilliar RM, Kandel RA. Substrate porosity enhances chondrocyte attachment, spreading, and cartilage tissue formation
in vitro. J Biomed Mater Res A 2006; 78:676-83. [PMID: 16739175 DOI: 10.1002/jbm.a.30746] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Tissue engineering is being explored as a new approach to treat damaged cartilage. As the biomaterial used may influence tissue formation, the effects of substrate geometry on chondrocyte behavior in vitro were examined. Articular chondrocytes were isolated and cultured on the surface of smooth, rough, porous-coated, and fully porous Ti-6Al-4V substrates. The percentage of chondrocytes that attached to each substrate at 24 h was determined. After 24 and 72 h, chondrocytes were visualized by scanning electron microscopy and cell areas were measured. Collagen and proteoglycan accumulation within the first 24 h was determined by incorporation with [3H]-proline and [35S]-SO4, respectively. Chondrocyte attachment as well as matrix accumulation was enhanced as substrate surface area increased. Cell areas on the fully porous substrate were over four times greater than on any other substrate by 72 h in culture. After 8 weeks in culture, a continuous layer of cartilaginous tissue formed only on the surface of the fully porous substrate. This suggests that fully porous Ti-6Al-4V substrates provide the conditions that favor cartilage tissue formation by influencing cell attachment and extent of cell spreading. Understanding how substrate porosity influences chondrocyte behavior may help identify methods to further enhance cartilage tissue formation in vitro.
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Affiliation(s)
- C G Spiteri
- Bioengineering of Skeletal Tissues Team, Pathology and Laboratory Medicine, Mount Sinai Hospital, 600 University Avenue, Suite 600-9, Toronto, Ontario, Canada M5G 1X5
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Allen LT, Tosetto M, Miller IS, O'Connor DP, Penney SC, Lynch I, Keenan AK, Pennington SR, Dawson KA, Gallagher WM. Surface-induced changes in protein adsorption and implications for cellular phenotypic responses to surface interaction. Biomaterials 2006; 27:3096-108. [PMID: 16460797 DOI: 10.1016/j.biomaterials.2006.01.019] [Citation(s) in RCA: 163] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2005] [Accepted: 01/13/2006] [Indexed: 12/25/2022]
Abstract
Understanding external factors that determine cellular phenotypic responses is of key interest in the field of biomaterials. Currently, material surface characteristics, protein adsorption and cellular phenotypic responses are all considered to be interrelated and ultimately determine the biocompatibility of materials. The exact nature of the relationship between these distinct, yet related, phenomena still remains to be elucidated. Through the use of a series of thermoresponsive N-isopropylacrylamide-based co-polymer films, we aimed to shed light on the relationship between surface hydrophobicity, protein adsorption and subsequent cellular response. Despite changes in co-polymer hydrophobicity mediated by altered ratios of constituent monomers, differential cellular response was only apparent in the presence of serum. Co-polymer films displayed alterations with respect to the amount of protein adsorbed on the surface, with individual serum proteins (albumin and fibronectin) displaying contrasting adsorption characteristics. Changes in protein adsorption corresponded to changes in cell adhesion, cytoskeletal organisation and cell morphology, as well as to changes in cell movement and intracellular signalling events. Examination of focal adhesion kinase (FAK), and extracellular signal-regulated kinase (ERK 1/2), important mediators of adhesion and growth factor-related signalling events, revealed a comparative reduction in phosphorylation of these signalling proteins in cells grown on co-polymers in comparison to those cultured on tissue culture polystyrene (TCP; used as a control surface). We also associated surface-mediated phenotypic alterations of cells grown on TCP and co-polymer films with particular changes in gene expression. These results indicate that cellular response to interaction with our series of co-polymer films is determined by the surface-adsorbed protein layer, which in turn is determined by the changing surface chemistry as the ratio of the co-monomers is altered.
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Affiliation(s)
- Lorcan T Allen
- UCD School of Biomolecular and Biomedical Science, Centre for Molecular Medicine, Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4, Ireland
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20
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Curran JM, Chen R, Hunt JA. Controlling the phenotype and function of mesenchymal stem cells in vitro by adhesion to silane-modified clean glass surfaces. Biomaterials 2005; 26:7057-67. [PMID: 16023712 DOI: 10.1016/j.biomaterials.2005.05.008] [Citation(s) in RCA: 168] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2005] [Accepted: 05/06/2005] [Indexed: 11/21/2022]
Abstract
The behaviour of human mesenchymal stem cells (hMSC) when cultured in contact with a range of silane-modified surfaces was examined to determine if changing the surface chemistry affected the early differentiation potential of mesenchymal stem cells in vitro over a 7-day period. Cells were cultured for 1 and 7 days in direct contact with glass which had been functionalized by surface treatment to provide a range of different surfaces: -CH(3), -NH(2), -SH, -OH, and -COOH modified surfaces and a clean glass reference (TAAB). Viable cell adhesion was quantified by Lactate Dehydrogenase assay, and morphology and viability was qualitatively evaluated using calcein AM, ethidium homodimer, cytoskeletal (F Actin), extra-cellular matrix (fibronectin and vitronectin) and Hoechst staining (nucleus). The expression of selected differentiation markers, Collagen II (chondrocytes), CBFA1 (bone transcription factor), Collagen I (MSC marker) and TGF-beta3 (extra-cellular matrix production) was determined using real time polymerase chain reaction. The expression of ornithine decarboxylase was evaluated as a marker of proliferation. Surfaces of the -NH(2) group demonstrated the greatest level of cell adhesion by the 7-day period, and mRNA expression profiles indicated osteogenic differentiation, increased CBFA1 and decreased Collagen II expression. Cells cultured in contact with the -COOH surfaces displayed different cell morphologies, fibronectin and vitronectin spatial distributions compared with the cells in contact with the -NH(2) surfaces, in addition to an increase in Collagen II expression, indicative of chondrogenic differentiation. The modifications to the surface chemistry of glass did affect cell behaviour, both in terms of viable cell adhesion, morphology and profiles of mRNA expression, providing the means to alter the differentiation potential of the MSCs.
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Affiliation(s)
- J M Curran
- UK Centre for Tissue Engineering, Clinical Engineering, University of Liverpool.
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Woodfield TBF, Miot S, Martin I, van Blitterswijk CA, Riesle J. The regulation of expanded human nasal chondrocyte re-differentiation capacity by substrate composition and gas plasma surface modification. Biomaterials 2005; 27:1043-53. [PMID: 16125219 DOI: 10.1016/j.biomaterials.2005.07.032] [Citation(s) in RCA: 73] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2005] [Accepted: 07/21/2005] [Indexed: 11/18/2022]
Abstract
Optimizing re-differentiation of clinically relevant cell sources on biomaterial substrates in serum containing (S+) and serum-free (SF) media is a key consideration in scaffold-based articular cartilage repair strategies. We investigated whether the adhesion and post-expansion re-differentiation of human chondrocytes could be regulated by controlled changes in substrate surface chemistry and composition in S+ and SF media following gas plasma (GP) treatment. Expanded human nasal chondrocytes were plated on gas plasma treated (GP+) or untreated (GP-) poly(ethylene glycol)-terephthalate-poly(butylene terephthalate) (PEGT/PBT) block co-polymer films with two compositions (low or high PEG content). Total cellularity, cell morphology and immunofluorescent staining of vitronectin (VN) and fibronectin (FN) integrin receptors were evaluated, while post-expansion chondrogenic phenotype was assessed by collagen types I and II mRNA expression. We observed a direct relationship between cellularity, cell morphology and re-differentiation potential. Substrates supporting high cell adhesion and a spread morphology (i.e. GP+ and low PEG content films), resulted in a significantly greater number of cells expressing alpha5beta1 FN to alpha(V)beta3 VN integrin receptors, concomitant with reduced collagen type II/ImRNA gene expression. Substrates supporting low cell adhesion and a spherical morphology (GP- and high PEG content films) promoted chondrocyte re-differentiation indicated by high collagen type II/I gene expression and a low percentage of alpha5beta1 FN integrin expressing cells. This study demonstrates that cell-substrate interactions via alpha5beta1 FN integrin mediated receptors negatively impacts expanded human nasal chondrocyte re-differentiation capacity. GP treatment promotes cell adhesion in S+ media but reverses the ability of low PEG content PEGT/PBT substrates to maintain chondrocyte phenotype. We suggest alternative cell immobilization techniques to GP are necessary for clinical application in articular cartilage repair.
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Affiliation(s)
- Tim B F Woodfield
- Institute for Biomedical Technology, University of Twente, Bilthoven Research Group, Prof. Bronkhorstlaan 10-D, 3723 MB, Bilthoven, The Netherlands.
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Hemmrich K, von Heimburg D, Cierpka K, Haydarlioglu S, Pallua N. Optimization of the differentiation of human preadipocytes in vitro. Differentiation 2005; 73:28-35. [PMID: 15733065 DOI: 10.1111/j.1432-0436.2005.07301003.x] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
This study aimed at developing an optimal protocol for proliferation and differentiation of preadipocytes that is a prerequisite for constructing an ideal biohybrid composed of viable adipose precursor cells in a three-dimensional matrix. Such an implant could represent an adequate solution for correcting soft tissue defects, e.g., extensive deep burns or tumor resections. Preadipocytes were isolated from human subcutaneous adipose tissue samples and cultured in Dulbecco's modified eagle medium (DMEM)/Ham's F12 medium (F12) or OPTIMEM medium with or without the addition of human serum (hS) or fetal calf serum (FCS). The advantages of fibronectin-coated culture dishes for preadipocyte yield after isolation and differentiation were evaluated. After culture expansion, differentiation was induced by insulin, isobutylmethylxanthine, pioglitazone, dexamethasone, and transferrin in the absence of serum. The extent of differentiation was assayed by measuring the activity of glycerophosphate dehydrogenase as well as counting of differentiated versus undifferentiated cells. Our results show that fibronectin coating does not only strongly increase the yield of preadipocytes after isolation from adipose tissue but also significantly enhances differentiation of precursor cells to mature adipocytes. For optimal cell expansion, DMEM/F12 is more promoting than OPTIMEM and culturing with FCS shows a slightly better proliferation compared with hS supplementation. Differentiation, in contrast, is significantly improved when hS is used instead of FCS during proliferation. Our results smooth the way for autologous preadipocyte culturing and show that hS for preadipocyte culturing opens new and promising perspectives for adipose tissue engineering by optimizing in vitro expansion in cell culture and inducing substantial differentiation.
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Affiliation(s)
- Karsten Hemmrich
- Department of Plastic Surgery and Hand Surgery-Burn Center, University Hospital of the Aachen University of Technology, Pauwelsstr. 30, 52057 Aachen, Germany
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Chen G, Liu D, Maruyama N, Ohgushi H, Tanaka J, Tateishi T. Cell adhesion of bone marrow cells, chondrocytes, ligament cells and synovial cells on a PLGA–collagen hybrid mesh. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2004. [DOI: 10.1016/j.msec.2004.08.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Mahmood TA, de Jong R, Riesle J, Langer R, van Blitterswijk CA. Adhesion-mediated signal transduction in human articular chondrocytes: the influence of biomaterial chemistry and tenascin-C. Exp Cell Res 2004; 301:179-88. [PMID: 15530854 DOI: 10.1016/j.yexcr.2004.07.027] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2003] [Revised: 04/22/2004] [Indexed: 10/26/2022]
Abstract
Chondrocyte 'dedifferentiation' involves the switching of the cell phenotype to one that no longer secretes extracellular matrix found in normal cartilage and occurs frequently during chondrocyte expansion in culture. It is also characterized by the differential expression of receptors and intracellular proteins that are involved in signal transduction pathways, including those associated with cell shape and actin microfilament organization. The objective of this study was to examine the modulation of chondrocyte phenotype by cultivation on polymer substrates containing poly(ethylene glycol) (PEG). We observed differential arrangement of actin organization in articular chondrocytes, depending on PEG length. When cultivated on 300 g/mol PEG substrates at day 19, chondrocytes had lost intracellular markers characteristic of the differentiated phenotype, including type II collagen and protein kinase C (PKC). On these surfaces, chondrocytes also expressed focal adhesion and signaling proteins indicative of cell attachment, spreading, and FA turnover, including RhoA, focal adhesion kinase, and vinculin. The switch to a dedifferentiated chondrocyte phenotype correlated with integrin expression. Conversely, the expression of CD44 receptors coincided with chondrogenic characteristics, suggesting that binding via these receptors could play a role in maintaining the differentiated phenotype on such substrates. These effects can be similar to those of compounds that interfere in intracellular signaling pathways and can be utilized to engineer cellular response.
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Affiliation(s)
- Tahir A Mahmood
- IsoTis SA, Prof. Bronkhorstlaan 10, 3723 MB Bilthoven, The Netherlands.
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Sakiyama T, Tomura J, Imamura K, Nakanishi K. Adsorption characteristics of bovine serum albumin and its peptide fragments on a stainless steel surface. Colloids Surf B Biointerfaces 2004. [DOI: 10.1016/j.colsurfb.2003.08.010] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Li WJ, Danielson KG, Alexander PG, Tuan RS. Biological response of chondrocytes cultured in three‐dimensional nanofibrous poly(ϵ‐caprolactone) scaffolds. J Biomed Mater Res A 2003; 67:1105-14. [PMID: 14624495 DOI: 10.1002/jbm.a.10101] [Citation(s) in RCA: 433] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Nanofibrous materials, by virtue of their morphological similarities to natural extracellular matrix, have been considered as candidate scaffolds for cell delivery in tissue-engineering applications. In this study, we have evaluated a novel, three-dimensional, nanofibrous poly(epsilon-caprolactone) (PCL) scaffold composed of electrospun nanofibers for its ability to maintain chondrocytes in a mature functional state. Fetal bovine chondrocytes (FBCs), maintained in vitro between passages 2 to 6, were seeded onto three-dimensional biodegradable PCL nanofibrous scaffolds or as monolayers on standard tissue culture polystyrene (TCPS) as a control substrate. Gene expression analysis by reverse transcription-polymerase chain reaction showed that chondrocytes seeded on the nanofibrous scaffold and maintained in serum-free medium supplemented with ITS+, ascorbate, and dexamethasone continuously maintained their chondrocytic phenotype by expressing cartilage-specific extracellular matrix genes, including collagen types II and IX, aggrecan, and cartilage oligomeric matrix protein. Specifically, expression of the collagen type IIB splice variant transcript, which is indicative of the mature chondrocyte phenotype, was up-regulated. FBCs exhibited either a spindle or round shape on the nanofibrous scaffolds, in contrast to a flat, well-spread morphology seen in monolayer cultures on TCPS. Organized actin stress fibers were only observed in the cytoplasm of cells cultured on TCPS. Histologically, nanofibrous cultures maintained in the supplemented serum-free medium produced more sulfated proteoglycan-rich, cartilaginous matrix than monolayer cultures. In addition to promoting phenotypic differentiation, the nanofibrous scaffold also supported cellular proliferation as evidenced by a 21-fold increase in cell growth over 21 days when the cultures were maintained in serum-containing medium. These results indicate that the biological activities of FBCs are crucially dependent on the architecture of the extracellular scaffolds as well as the composition of the culture medium, and that nanofibrous PCL acts as a biologically preferred scaffold/substrate for proliferation and maintenance of the chondrocytic phenotype. We propose that the PCL nanofibrous structure may be a suitable candidate scaffold for cartilage tissue engineering.
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Affiliation(s)
- Wan-Ju Li
- Cartilage Biology and Orthopaedics Branch, National Institute of Arthritis, and Musculoskeletal and Skin Diseases, National Institutes of Health, Department of Health and Human Services, Building 50, Room 1503, MSC8022, Bethesda, Maryland 20892-8022, USA
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?enel S, Bayramo??lu G, Ar?ca MY. DNA adsorption on a poly-L-lysine-immobilized poly(2-hydroxyethyl methacrylate) membrane. POLYM INT 2003. [DOI: 10.1002/pi.1229] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Hunziker EB. Articular cartilage repair: basic science and clinical progress. A review of the current status and prospects. Osteoarthritis Cartilage 2002; 10:432-63. [PMID: 12056848 DOI: 10.1053/joca.2002.0801] [Citation(s) in RCA: 1348] [Impact Index Per Article: 61.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To review the basic scientific status of repair in articular cartilage tissue and to assess the efficiency of current clinical therapies instigated for the treatment of structural lesions generated therein as a result of trauma or during the course of various diseases, notably osteoarthritis (OA). Current scientific trends and possible directions for the future will also be discussed. DESIGN A systematic and critical analysis is undertaken, beginning with a description of the spontaneous repair responses in different types of lesion. Surgical interventions aimed at inducing repair without the use of active biologics will then be considered, followed by those involving active biologics and those drawing on autogenic and allogeneic tissue transplantation principles. Cell transplantation approaches, in particular novel tissue engineering concepts, will be critically presented. These will include growth-factor-based biological treatments and gene transfection protocols. A number of technical problems associated with repair interventions, such as tissue integration, tissue retention and the role of mechanical factors, will also be analysed. RESULTS A critical analysis of the literature reveals the existence of many novel and very promising biologically-based approaches for the induction of articular cartilage repair, the vast majority of which are still at an experimental phase of development. But prospective, double-blinded clinical trials comparing currently practiced surgical treatments have, unfortunately, not been undertaken. CONCLUSION The existence of many new and encouraging biological approaches to cartilage repair justifies the future investment of time and money in this research area, particularly given the extremely high socio-economic importance of such therapeutic strategies in the prevention and treatment of these common joint diseases and traumas. Clinical epidemiological and prospective trials are, moreover, urgently needed for an objective, scientific appraisal of current therapies and future novel approaches.
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Affiliation(s)
- E B Hunziker
- M.E. Müller-Institute for Biomechanics, University of Bern, Murtenstrasse 35, Switzerland.
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