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Kolodkin-Gal I, Dash O, Rak R. Probiotic cultivated meat: bacterial-based scaffolds and products to improve cultivated meat. Trends Biotechnol 2024; 42:269-281. [PMID: 37805297 DOI: 10.1016/j.tibtech.2023.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 09/07/2023] [Accepted: 09/11/2023] [Indexed: 10/09/2023]
Abstract
Cultivated meat is emerging to replace traditional livestock industries, which have ecological costs, including land and water overuse and considerable carbon emissions. During cultivated meat production, mammalian cells can increase their numbers dramatically through self-renewal/proliferation and transform into mature cells, such as muscle or fat cells, through maturation/differentiation. Here, we address opportunities for introducing probiotic bacteria into the cultivated meat industry, including using them to produce renewable antimicrobials and scaffolding materials. We also offer solutions to challenges, including the growth of bacteria and mammalian cells, the effect of probiotic bacteria on production costs, and the effect of bacteria and their products on texture and taste. Our summary provides a promising framework for applying microbial composites in the cultivated meat industry.
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Affiliation(s)
- Ilana Kolodkin-Gal
- Scojen Institute for Synthetic Biology, Reichman University, Herzliya, Israel.
| | - Orit Dash
- Department of Animal Sciences, Faculty of Agriculture and Environmental Sciences, The Hebrew University of Jerusalem, Rehovot, Israel; Institute of Animal Science, ARO, The Volcani Center, Rishon LeZion, Israel
| | - Roni Rak
- Institute of Animal Science, ARO, The Volcani Center, Rishon LeZion, Israel.
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2
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Zhang D, Li Z, Shi H, Yao Y, Du W, Lu P, Liang K, Hong L, Gao C. Micropatterns and peptide gradient on the inner surface of a guidance conduit synergistically promotes nerve regeneration in vivo. Bioact Mater 2022; 9:134-146. [PMID: 34820561 PMCID: PMC8586031 DOI: 10.1016/j.bioactmat.2021.07.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 07/09/2021] [Accepted: 07/10/2021] [Indexed: 12/22/2022] Open
Abstract
Both of the surface topographical features and distribution of biochemical cues can influence the cell-substrate interactions and thereby tissue regeneration in vivo. However, they have not been combined simultaneously onto a biodegradable scaffold to demonstrate the synergistic role so far. In this study, a proof-of-concept study is performed to prepare micropatterns and peptide gradient on the inner wall of a poly (D,L-lactide-co-caprolactone) (PLCL) guidance conduit and its advantages in regeneration of peripheral nerve in vivo. After linear ridges/grooves of 20/40 μm in width are created on the PLCL film, its surface is aminolyzed in a kinetically controlled manner to obtain the continuous gradient of amino groups, which are then transferred to CQAASIKVAV peptide density gradient via covalent coupling of glutaraldehyde. The Schwann cells are better aligned along with the stripes, and show a faster migration rate toward the region of higher peptide density. Implantation of the nerve guidance conduit made of the PLCL film having both the micropatterns and peptide gradient can significantly accelerate the regeneration of sciatic nerve in terms of rate, function recovery and microstructures, and reduction of fibrosis in muscle tissues. Moreover, this nerve conduit can also benefit the M2 polarization of macrophages and promote vascularization in vivo.
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Affiliation(s)
- Deteng Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University, Hangzhou, 310058, China
| | - Ziming Li
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Haifei Shi
- Department of Hand Surgery, First Affiliated Hospital of Zhejiang University, School of Medicine. Hangzhou, 310009, China
| | - Yuejun Yao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Wang Du
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Pan Lu
- Department of Hand Surgery, First Affiliated Hospital of Zhejiang University, School of Medicine. Hangzhou, 310009, China
| | - Kejiong Liang
- Department of Hand Surgery, First Affiliated Hospital of Zhejiang University, School of Medicine. Hangzhou, 310009, China
| | - Liangjie Hong
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Changyou Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University, Hangzhou, 310058, China
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3
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Lehnert S, Sikorski P. Application of Temporary, Cell-Containing Alginate Microcarriers to Facilitate the Fabrication of Spatially Defined Cell Pockets in 3D Collagen Hydrogels. Macromol Biosci 2021; 22:e2100319. [PMID: 34679232 DOI: 10.1002/mabi.202100319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 09/29/2021] [Indexed: 11/08/2022]
Abstract
Mimicking the complexity of natural tissue is a major challenge in the field of tissue engineering. Here, a facile 2-step fabrication method to prepare 3D constructs with distinct regions of high cell concentrations and without the need for elaborate equipment is proposed. The initial incorporation of cells in a sacrificial alginate matrix allows the addition of other, cell relevant biopolymers, such as, collagen to form a spatially confined, interpenetrating network at the microscale. A layered structure at the macroscale can be achieved by incorporating these cell-containing microspheres in thin collagen layers. Cells are locally released by de-gelling the alginate matrix and their attachment to the collagen hydrogel layers has been studied. The use of the murine pre-osteoblast cell line MC3T3-E1 as an example cell line shows that the cells behave differently in their cell migration pattern based on the initial composition of the alginate microspheres.
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Affiliation(s)
- Sarah Lehnert
- Department of Physics, Norwegian University of Science and Technology (NTNU), Høgskoleringen 5, Trondheim, 7034, Norway
| | - Pawel Sikorski
- Department of Physics, Norwegian University of Science and Technology (NTNU), Høgskoleringen 5, Trondheim, 7034, Norway
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Troy E, Tilbury MA, Power AM, Wall JG. Nature-Based Biomaterials and Their Application in Biomedicine. Polymers (Basel) 2021; 13:3321. [PMID: 34641137 PMCID: PMC8513057 DOI: 10.3390/polym13193321] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 09/09/2021] [Accepted: 09/17/2021] [Indexed: 02/07/2023] Open
Abstract
Natural polymers, based on proteins or polysaccharides, have attracted increasing interest in recent years due to their broad potential uses in biomedicine. The chemical stability, structural versatility, biocompatibility and high availability of these materials lend them to diverse applications in areas such as tissue engineering, drug delivery and wound healing. Biomaterials purified from animal or plant sources have also been engineered to improve their structural properties or promote interactions with surrounding cells and tissues for improved in vivo performance, leading to novel applications as implantable devices, in controlled drug release and as surface coatings. This review describes biomaterials derived from and inspired by natural proteins and polysaccharides and highlights their promise across diverse biomedical fields. We outline current therapeutic applications of these nature-based materials and consider expected future developments in identifying and utilising innovative biomaterials in new biomedical applications.
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Affiliation(s)
- Eoin Troy
- Microbiology, College of Science and Engineering, National University of Ireland, NUI Galway, H91 TK33 Galway, Ireland; (E.T.); (M.A.T.)
| | - Maura A. Tilbury
- Microbiology, College of Science and Engineering, National University of Ireland, NUI Galway, H91 TK33 Galway, Ireland; (E.T.); (M.A.T.)
- SFI Centre for Medical Devices (CÚRAM), NUI Galway, H91 TK33 Galway, Ireland
| | - Anne Marie Power
- Zoology, School of Natural Sciences, NUI Galway, H91 TK33 Galway, Ireland;
| | - J. Gerard Wall
- Microbiology, College of Science and Engineering, National University of Ireland, NUI Galway, H91 TK33 Galway, Ireland; (E.T.); (M.A.T.)
- SFI Centre for Medical Devices (CÚRAM), NUI Galway, H91 TK33 Galway, Ireland
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5
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Dellago B, Ricke A, Geyer T, Liska R, Baudis S. Photopolymerizable precursors for degradable biomaterials based on acetal moieties. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110536] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Kulanthaivel S, Agarwal T, Sharan Rathnam VS, Pal K, Banerjee I. Cobalt doped nano-hydroxyapatite incorporated gum tragacanth-alginate beads as angiogenic-osteogenic cell encapsulation system for mesenchymal stem cell based bone tissue engineering. Int J Biol Macromol 2021; 179:101-115. [PMID: 33621571 DOI: 10.1016/j.ijbiomac.2021.02.136] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 02/10/2021] [Accepted: 02/18/2021] [Indexed: 12/14/2022]
Abstract
Angiogenic-osteogenic cell encapsulation system is a technical need for human mesenchymal stem cell (hMSC)-based bone tissue engineering (BTE). Here, we have developed a highly efficient hMSC encapsulation system by incorporating bivalent cobalt doped nano-hydroxyapatite (HAN) and gum tragacanth (GT) as angiogenic-osteogenic components into the calcium alginate (CA) beads. Physico-chemical characterizations revealed that the swelling and degradation of HAN incorporated CA-GT beads (GT-HAN) were 1.34 folds and 2 folds higher than calcium alginate (CA) beads. Furthermore, the diffusion coefficient of solute molecule was found 2.5-fold higher in GT-HAN with respect to CA bead. It is observed that GT-HAN supports the long-term viability of encapsulated hMSC and causes 50% less production of reactive oxygen species (ROS) in comparison to CA beads. The expression of osteogenic differentiation markers was found 1.5-2.5 folds higher in the case of GT-HAN in comparison to CA. A similar trend was observed for hypoxia inducible factor 1 alpha (HIF-1α) and vascular endothelial growth factor (VEGF). The soluble secretome from hMSC encapsulated in the GT-HAN induced proliferation of endothelial cells and supported tube formation (2.5-fold higher than CA beads). These results corroborated that GT-HAN could be used as an angiogenic-osteogenic cell encapsulation matrix for hMSC encapsulation and BTE application.
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Affiliation(s)
- Senthilguru Kulanthaivel
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Tarun Agarwal
- Department of Biotechnology, Indian Institute of Technology Kharagpur, West Bengal 721302, India
| | - V S Sharan Rathnam
- Department of Biotechnology and Medical Engineering, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Kunal Pal
- Department of Biotechnology and Medical Engineering, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Indranil Banerjee
- Department of Bioscience and Bioengineering, Indian Institute of Technology Jodhpur, Rajasthan 342037, India.
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7
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Kumar P, Saini M, Dehiya BS, Sindhu A, Kumar V, Kumar R, Lamberti L, Pruncu CI, Thakur R. Comprehensive Survey on Nanobiomaterials for Bone Tissue Engineering Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E2019. [PMID: 33066127 PMCID: PMC7601994 DOI: 10.3390/nano10102019] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 10/08/2020] [Accepted: 10/09/2020] [Indexed: 02/06/2023]
Abstract
One of the most important ideas ever produced by the application of materials science to the medical field is the notion of biomaterials. The nanostructured biomaterials play a crucial role in the development of new treatment strategies including not only the replacement of tissues and organs, but also repair and regeneration. They are designed to interact with damaged or injured tissues to induce regeneration, or as a forest for the production of laboratory tissues, so they must be micro-environmentally sensitive. The existing materials have many limitations, including impaired cell attachment, proliferation, and toxicity. Nanotechnology may open new avenues to bone tissue engineering by forming new assemblies similar in size and shape to the existing hierarchical bone structure. Organic and inorganic nanobiomaterials are increasingly used for bone tissue engineering applications because they may allow to overcome some of the current restrictions entailed by bone regeneration methods. This review covers the applications of different organic and inorganic nanobiomaterials in the field of hard tissue engineering.
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Affiliation(s)
- Pawan Kumar
- Department of Materials Science and Nanotechnology, Deenbandhu Chhotu Ram University of Science and Technology, Murthal 131039, India; (M.S.); (B.S.D.)
| | - Meenu Saini
- Department of Materials Science and Nanotechnology, Deenbandhu Chhotu Ram University of Science and Technology, Murthal 131039, India; (M.S.); (B.S.D.)
| | - Brijnandan S. Dehiya
- Department of Materials Science and Nanotechnology, Deenbandhu Chhotu Ram University of Science and Technology, Murthal 131039, India; (M.S.); (B.S.D.)
| | - Anil Sindhu
- Department of Biotechnology, Deenbandhu Chhotu Ram University of Science and Technology, Murthal 131039, India;
| | - Vinod Kumar
- Department of Bio and Nanotechnology, Guru Jambheshwar University of Science and Technology, Hisar 125001, India; (V.K.); (R.T.)
| | - Ravinder Kumar
- School of Mechanical Engineering, Lovely Professional University, Phagwara 144411, India
| | - Luciano Lamberti
- Dipartimento di Meccanica, Matematica e Management, Politecnico di Bari, 70125 Bari, Italy;
| | - Catalin I. Pruncu
- Department of Design, Manufacturing & Engineering Management, University of Strathclyde, Glasgow G1 1XJ, UK
- Department of Mechanical Engineering, Imperial College London, London SW7 2AZ, UK
| | - Rajesh Thakur
- Department of Bio and Nanotechnology, Guru Jambheshwar University of Science and Technology, Hisar 125001, India; (V.K.); (R.T.)
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8
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Jiang J, Liu A, Chen C, Tang J, Fan H, Sun J, Fan H. An efficient two-step preparation of photocrosslinked gelatin microspheres as cell carriers to support MC3T3-E1 cells osteogenic performance. Colloids Surf B Biointerfaces 2020; 188:110798. [DOI: 10.1016/j.colsurfb.2020.110798] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 12/26/2019] [Accepted: 01/13/2020] [Indexed: 02/07/2023]
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9
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Bello AB, Kim D, Kim D, Park H, Lee SH. Engineering and Functionalization of Gelatin Biomaterials: From Cell Culture to Medical Applications. TISSUE ENGINEERING PART B-REVIEWS 2020; 26:164-180. [PMID: 31910095 DOI: 10.1089/ten.teb.2019.0256] [Citation(s) in RCA: 250] [Impact Index Per Article: 62.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Health care and medicine were revolutionized in recent years by the development of biomaterials, such as stents, implants, personalized drug delivery systems, engineered grafts, cell sheets, and other transplantable materials. These materials not only support the growth of cells before transplantation but also serve as replacements for damaged tissues in vivo. Among the various biomaterials available, those made from natural biological sources such as extracellular proteins (collagen, fibronectin, laminin) have shown significant benefits, and thus are widely used. However, routine biomaterial-based research requires copious quantities of proteins and the use of pure and intact extracellular proteins could be highly cost ineffective. Gelatin is a molecular derivative of collagen obtained through the irreversible denaturation of collagen proteins. Gelatin shares a very close molecular structure and function with collagen and thus is often used in cell and tissue culture to replace collagen for biomaterial purposes. Recent technological advancements such as additive manufacturing, rapid prototyping, and three-dimensional printing, in general, have resulted in great strides toward the generation of functional gelatin-based materials for medical purposes. In this review, the structural and molecular similarities of gelatin to other extracellular matrix proteins are compared and analyzed. Current strategies for gelatin crosslinking and production are described and recent applications of gelatin-based biomaterials in cell culture and tissue regeneration are discussed. Finally, recent improvements in gelatin-based biomaterials for medical applications and future directions are elaborated. Impact statement In this study, we described gelatin's biochemical properties and compared its advantages and drawbacks over other extracellular matrix proteins and polymers used for biomaterial application. We also described how gelatin can be used with other polymers in creating gelatin composite materials that have enhanced mechanical properties, increased biocompatibility, and boosted bioactivity, maximizing its benefits for biomedical purposes. The article is relevant, as it discussed not only the chemistry of gelatin, but also listed the current techniques in gelatin/biomaterial manufacturing and described the most recent trends in gelatin-based biomaterials for biomedical applications.
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Affiliation(s)
- Alvin Bacero Bello
- School of Integrative Engineering, Chung-Ang University, Seoul, Republic of Korea.,Department of Biomedical Science, Dongguk University, Gyeonggi, Republic of Korea
| | - Deogil Kim
- Department of Biomedical Science, CHA University, Seongnam-Si, Republic of Korea
| | - Dohyun Kim
- Department of Biomedical Science, Dongguk University, Gyeonggi, Republic of Korea
| | - Hansoo Park
- School of Integrative Engineering, Chung-Ang University, Seoul, Republic of Korea
| | - Soo-Hong Lee
- Department of Biomedical Science, Dongguk University, Gyeonggi, Republic of Korea
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10
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Yang Y, Yuan L, Li J, Muhammad I, Cheng P, Xiao T, Zhang X. Preparation and evaluation of tilmicosin microspheres and lung-targeting studies in rabbits. Vet J 2019; 246:27-34. [PMID: 30902186 DOI: 10.1016/j.tvjl.2019.01.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 01/23/2019] [Accepted: 01/23/2019] [Indexed: 11/15/2022]
Abstract
Tilmicosin (TMS) is a macrolide used extensively for pulmonary infections in clinical veterinary medicine. However, TMS has frequent administration and short elimination half-life. Therefore, tilmicosin-gelatine microspheres (TMS-GMS) were prepared by an emulsion-chemical cross-linking technique as a sustained-release formulation to extend drug half-life. The particle size distribution, in-vitro sustained-release properties, stability, and physical characteristics, as well as pharmacokinetic (PK) characteristics, were evaluated in rabbits. TMS-GMS were spherical in shape and had a mean diameter of 11.34±1.20μm; 95.65% of the microspheres varied in size from 5.0 to 25.0μm. Light and thermal stability tests indicated no significant changes in all observed indices. Importantly, compared to crude TMS, slower release of TMS from TMS-GMS was noted in drug release studies (in vitro). Pharmacokinetic (PK) characteristics were examined in the lung, liver, heart, kidney and muscle tissue of rabbits following IM injection of TMS-GMS or TMS-injection at a dose of 10mg/kg. The elimination half-life of TMS-GMS (59.21±0.21h) was longer than that of TMS-injection (38.56±0.13h) in the lung. The ratio of peak concentration (Ce) of TMS-GMS to TMS-injection was 2.19 (>1) in the lung, demonstrating the selectivity of TMS-GMS to target the lung compared to that of other tissues (Ce<1). Interestingly, the uptake value of TMS from TMS-GMS was 8.48 times higher in the lung than that for the TMS-injection, and was slightly higher than in the liver (1.85), heart (1.72), kidney (2.44) and muscle (2.79) tissues. TMS-GMS is a sustained-release formulation of TMS with potential to be used in veterinary clinical applications; possible benefits include lung-targeting and prolonged elimination half-life.
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Affiliation(s)
- Y Yang
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Faculty of Basic Veterinary Science, College of Veterinary Medicine, Northeast Agricultural University,600 Changjiang Road, Xiangfang District, Harbin, PR China
| | - L Yuan
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Faculty of Basic Veterinary Science, College of Veterinary Medicine, Northeast Agricultural University,600 Changjiang Road, Xiangfang District, Harbin, PR China; College of Veterinary Medicine, National Reference Laboratory of Veterinary Drug Residues (SCAU), South China Agricultural University, 510642 Guangzhou, China
| | - J Li
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Faculty of Basic Veterinary Science, College of Veterinary Medicine, Northeast Agricultural University,600 Changjiang Road, Xiangfang District, Harbin, PR China
| | - I Muhammad
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Faculty of Basic Veterinary Science, College of Veterinary Medicine, Northeast Agricultural University,600 Changjiang Road, Xiangfang District, Harbin, PR China
| | - P Cheng
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Faculty of Basic Veterinary Science, College of Veterinary Medicine, Northeast Agricultural University,600 Changjiang Road, Xiangfang District, Harbin, PR China
| | - T Xiao
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Faculty of Basic Veterinary Science, College of Veterinary Medicine, Northeast Agricultural University,600 Changjiang Road, Xiangfang District, Harbin, PR China
| | - X Zhang
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Faculty of Basic Veterinary Science, College of Veterinary Medicine, Northeast Agricultural University,600 Changjiang Road, Xiangfang District, Harbin, PR China.
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11
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Nabavinia M, Khoshfetrat AB, Naderi-Meshkin H. Nano-hydroxyapatite-alginate-gelatin microcapsule as a potential osteogenic building block for modular bone tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 97:67-77. [PMID: 30678955 DOI: 10.1016/j.msec.2018.12.033] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Revised: 11/08/2018] [Accepted: 12/10/2018] [Indexed: 01/01/2023]
Abstract
To develop osteogenic building blocks for modular bone tissue engineering applications, influence of gelatin as cell adhesive molecule and nano-hydroxyapatite (nHA) as osteoconductive component was examined on alginate-based hydrogel properties and microencapsulated osteoblast-like cell behavior by using factorial experimental design technique. nHA and alginate showed a statistically significant impact on swelling reduction, and improvement of stability and mechanical strength of hydrogels, respectively. Gelatin influence, however, was in a reverse manner. nHA played imperative roles in promoting microencapsulated osteoblastic cell proliferation and function due to its bioactivity and mechanical strength improvement of hydrogels to the modulus range of mineralized bone tissue in vivo. The results and their statistical analysis also revealed the importance of interaction effect of gelatin and nHA. Proliferation and osteogenic function of the cells fluctuated with increasing gelatin concentration of microcapsules in the presence of nHA, demonstrating that hydrogel properties should be balanced to provide an efficient 3D osteoconductive microcapsule. Alginate (1%)-gelatin (2.5%)-nHA (0.5%) microcapsule with compressive modulus of 0.19 MPa ± 0.02, swelling ratio of 52% ± 8 (24 h) and degradation rate of 12% ± 4 (96 h) revealed a maximum performance for the cell proliferation and function, indicating a potential microcapsule composition to prepare building blocks for modular bone tissue engineering.
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Affiliation(s)
- Mahboubeh Nabavinia
- Chemical Engineering Faculty, Sahand University of Technology, Tabriz 51335-1996, Iran; Stem Cell and Tissue Engineering Research Laboratory, Sahand University of Technology, Tabriz 51335-1996, Iran
| | - Ali Baradar Khoshfetrat
- Chemical Engineering Faculty, Sahand University of Technology, Tabriz 51335-1996, Iran; Stem Cell and Tissue Engineering Research Laboratory, Sahand University of Technology, Tabriz 51335-1996, Iran.
| | - Hojjat Naderi-Meshkin
- Stem Cell and Regenerative Medicine Research Group, Academic Center of Education, Culture, and Research (ACECR), Khorasan Razavi Branch, Mashhad, Iran
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Yan S, Xia P, Xu S, Zhang K, Li G, Cui L, Yin J. Nanocomposite Porous Microcarriers Based on Strontium-Substituted HA- g-Poly(γ-benzyl-l-glutamate) for Bone Tissue Engineering. ACS APPLIED MATERIALS & INTERFACES 2018; 10:16270-16281. [PMID: 29688701 DOI: 10.1021/acsami.8b02448] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Porous microcarriers have aroused increasing attention recently, which can create a protected environment for sufficient cell seeding density, facilitate oxygen and nutrient transfer, and well support the cell attachment and growth. In this study, porous microcarriers fabricated from the strontium-substituted hydroxyapatite- graft-poly(γ-benzyl-l-glutamate) (Sr10-HA- g-PBLG) hybrid nanocomposite were developed. The surface grating of PBLG, the micromorphology and element distribution, mechanical strength, in vitro degradation, and Sr2+ ion release of the obtained Sr10-HA- g-PBLG porous microcarriers were investigated, respectively. The grafting ratio and the molecular weight of the grafted PBLG of Sr10-HA- g-PBLG could be effectively controlled by varying the initial ratio of BLG-NCA to Sr10-HA-NH2. The microcarriers exhibited a highly porous and interconnected microstructure with the porosity of about 90% and overall density of 1.03-1.06 g/cm3. Also, the degradation rate of Sr10-HA-PBLG microcarriers could be effectively controlled and long-term Sr2+ release was obtained. The Sr10-HA-PBLG microcarriers allowed cells adhesion, infiltration, and proliferation and promoted the osteogenic differentiation of rabbit adipose-derived stem cells (ADSCs). Successful healing of femoral bone defect was proved by injection of the ADSCs-seeded Sr10-HA-PBLG microcarriers in a rabbit model.
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Affiliation(s)
- Shifeng Yan
- Department of Polymer Materials , Shanghai University , 99 Shangda Road , Shanghai 200444 , People's Republic of China
| | - Pengfei Xia
- Department of Polymer Materials , Shanghai University , 99 Shangda Road , Shanghai 200444 , People's Republic of China
| | - Shenghua Xu
- Department of Polymer Materials , Shanghai University , 99 Shangda Road , Shanghai 200444 , People's Republic of China
| | - Kunxi Zhang
- Department of Polymer Materials , Shanghai University , 99 Shangda Road , Shanghai 200444 , People's Republic of China
| | - Guifei Li
- Department of Polymer Materials , Shanghai University , 99 Shangda Road , Shanghai 200444 , People's Republic of China
| | - Lei Cui
- Department of Orthopedics, Shanghai Tongji Hospital , Tongji University School of Medicine , 389 Xincun Road , Shanghai 200065 , People's Republic of China
| | - Jingbo Yin
- Department of Polymer Materials , Shanghai University , 99 Shangda Road , Shanghai 200444 , People's Republic of China
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13
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Zhang S, Dai W, Lu Z, Lei Z, Yang B, He B, Zhou H, Cao J. Preparation and evaluation of cefquinome-loaded gelatin microspheres and the pharmacokinetics in pigs. J Vet Pharmacol Ther 2017; 41:117-124. [PMID: 28656695 DOI: 10.1111/jvp.12429] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Accepted: 05/25/2017] [Indexed: 11/29/2022]
Abstract
Cefquinome (CEF) is widely used for veterinary clinical applications because of its broad spectrum and high efficiency. However, frequent administrations are required due to its short elimination half-life. In this study, cefquinome sulfate gelatin microspheres (CEF-GMS) were prepared as a sustained-release formulation using emulsion chemical cross-linking technique. Physical properties, stability, sustained-release property in vitro, and pharmacokinetics in pigs were assessed. The morphology of CEF-GMS showed a good sphericity with porous structure on the surface, and the mean diameter was 8.80 ± 0.78 μm, with 90.60 ± 3.98% of the total in the range of 5-20 μm. There were no significant changes of all estimated indexes in the stability tests. In vitro drug release study showed that the release of CEF from CEF-GMS was much slower than that from crude CEF in a release medium. Pharmacokinetic characteristics were evaluated following intramuscular administration of CEF-GMS or Cefquinome sulfate injection (CEF-Inj) in pigs at a dosage of 4 mg CEF/kg body weight. The plasma drug concentration-time data of CEF-GMS and CEF-Inj were both best fitted by two-compartment models with first-order absorption, and the elimination half-life of CEF-GMS was almost 10 times that of CEF-Inj. Overall, CEF-GMS might be used as a sustained-release formulation of CEF for veterinary clinical applications.
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Affiliation(s)
- S Zhang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China.,Unit of Animal Infectious Diseases, State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei, China
| | - W Dai
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Z Lu
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Z Lei
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
| | - B Yang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
| | - B He
- Institute of Animal Husbandry and Veterinary, Wuhan Academy of Agricultural Science and Technology, Wuhan, Hubei, China
| | - H Zhou
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China.,Unit of Animal Infectious Diseases, State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei, China
| | - J Cao
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
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14
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15
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Li J, Lam ATL, Toh JPW, Reuveny S, Oh SKW, Birch WR. Tunable Volumetric Density and Porous Structure of Spherical Poly-ε-caprolactone Microcarriers, as Applied in Human Mesenchymal Stem Cell Expansion. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:3068-3079. [PMID: 28221044 DOI: 10.1021/acs.langmuir.7b00125] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Polymeric microspheres may serve as microcarrier (MC) matrices, for the expansion of anchorage-dependent stem cells. They require surface properties that promote both initial cell adhesion and the subsequent spreading of cells, which is a prerequisite for successful expansion. When implemented in a three-dimensional culture environment, under agitation, their suspension under low shear rates depends on the MCs having a modest negative buoyancy, with a density of 1.02-1.05 g/cm3. Bioresorbable poly-ε-caprolactone (PCL), with a density of 1.14 g/cm3, requires a reduction in volumetric density, for the microspheres to achieve high cell viability and yields. Uniform-sized droplets, from solutions of PCL dissolved in dichloromethane (DCM), were generated by coaxial microfluidic geometry. Subsequent exposure to ethanol rapidly extracted the DCM solvent, solidifying the droplets and yielding monodisperse microspheres with a porous structure, which was demonstrated to have tunable porosity and a hollow inner core. The variation in process parameters, including the molecular weight of PCL, its concentration in DCM, and the ethanol concentration, served to effectively alter the diffusion flux between ethanol and DCM, resulting in a broad spectrum of volumetric densities of 1.04-1.11 g/cm3. The solidified microspheres are generally covered by a smooth thin skin, which provides a uniform cell culture surface and masks their internal porous structure. When coated with a cationic polyelectrolyte and extracellular matrix protein, monodisperse microspheres with a diameter of approximately 150 μm and densities ranging from 1.05-1.11 g/cm3 are capable of supporting the expansion of human mesenchymal stem cells (hMSCs). Validation of hMSC expansion was carried out with a positive control of commercial Cytodex 3 MCs and a negative control of uncoated low-density PCL MCs. Static culture conditions generated more than 70% cell attachment and similar yields of sixfold cell expansion on all coated MCs, with poor cell attachment and growth on the negative control. Under agitation, coated porous microspheres, with a low density of 1.05 g/cm3, achieved robust cell attachment and resulted in high cell yields of ninefold cell expansion, comparable with those generated by commercial Cytodex 3 MCs.
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Affiliation(s)
- Jian Li
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research) , 2 Fusionopolis Way, Innovis, #08-03, 138634, Singapore
| | - Alan Tin-Lun Lam
- Bioprocessing Technology Institute, A*STAR (Agency for Science, Technology and Research) , 20 Biopolis Way, #06-01, 138668, Singapore
| | - Jessica Pei Wen Toh
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research) , 2 Fusionopolis Way, Innovis, #08-03, 138634, Singapore
| | - Shaul Reuveny
- Bioprocessing Technology Institute, A*STAR (Agency for Science, Technology and Research) , 20 Biopolis Way, #06-01, 138668, Singapore
| | - Steve Kah-Weng Oh
- Bioprocessing Technology Institute, A*STAR (Agency for Science, Technology and Research) , 20 Biopolis Way, #06-01, 138668, Singapore
| | - William R Birch
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research) , 2 Fusionopolis Way, Innovis, #08-03, 138634, Singapore
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16
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Fabrication of uniform-sized poly-ɛ-caprolactone microspheres and their applications in human embryonic stem cell culture. Biomed Microdevices 2016; 17:105. [PMID: 26458560 DOI: 10.1007/s10544-015-0010-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The generation of liquefied poly-ɛ-caprolactone (PCL) droplets by means of a microfluidic device results in uniform-sized microspheres, which are validated as microcarriers for human embryonic stem cell culture. Formed droplet size and size distribution, as well as the resulting PCL microsphere size, are correlated with the viscosity and flow rate ratio of the dispersed (Q d) and continuous (Q c) phases. PCL in dichloromethane increases its viscosity with concentration and molecular weight. Higher viscosity and Q d/Q c lead to the formation of larger droplets, within two observed formation modes: dripping and jetting. At low viscosity of dispersed phase and Q d/Q c, the microfluidic device is operated in dripping mode, which generates droplets and microspheres with greater size uniformity. Solutions with lower molecular weight PCL have lower viscosity, resulting in a wider concentration range for the dripping mode. When coated with extracellular matrix (ECM) proteins, the fabricated PCL microspheres are demonstrated capable of supporting the expansion of human embryonic stem cells.
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17
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Gorsche C, Seidler K, Knaack P, Dorfinger P, Koch T, Stampfl J, Moszner N, Liska R. Rapid formation of regulated methacrylate networks yielding tough materials for lithography-based 3D printing. Polym Chem 2016. [DOI: 10.1039/c5py02009c] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Vinyl sulfone esters are described as a new class of AFCT reagents for methacrylate-based photopolymerization without the drawback of retardation but good regulation of network architecture. Resulting materials show low shrinkage stress and increased toughness. This paves the way for vinyl sulfone esters in lithography-based 3D printing.
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Affiliation(s)
- Christian Gorsche
- Institute of Applied Synthetic Chemistry
- Technische Universität Wien
- 1060 Vienna
- Austria
- Christian-Doppler-Laboratory for Photopolymers in Digital and Restorative Dentistry
| | - Konstanze Seidler
- Institute of Applied Synthetic Chemistry
- Technische Universität Wien
- 1060 Vienna
- Austria
- Christian-Doppler-Laboratory for Photopolymers in Digital and Restorative Dentistry
| | - Patrick Knaack
- Institute of Applied Synthetic Chemistry
- Technische Universität Wien
- 1060 Vienna
- Austria
| | - Peter Dorfinger
- Institute of Materials Science and Technology
- Technische Universität Wien
- 1060 Vienna
- Austria
| | - Thomas Koch
- Institute of Materials Science and Technology
- Technische Universität Wien
- 1060 Vienna
- Austria
| | - Jürgen Stampfl
- Christian-Doppler-Laboratory for Photopolymers in Digital and Restorative Dentistry
- 1060 Vienna
- Austria
- Institute of Materials Science and Technology
- Technische Universität Wien
| | - Norbert Moszner
- Christian-Doppler-Laboratory for Photopolymers in Digital and Restorative Dentistry
- 1060 Vienna
- Austria
- Ivoclar Vivadent AG
- 9494 Schaan
| | - Robert Liska
- Institute of Applied Synthetic Chemistry
- Technische Universität Wien
- 1060 Vienna
- Austria
- Christian-Doppler-Laboratory for Photopolymers in Digital and Restorative Dentistry
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18
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Gupta P, Ismadi MZ, Verma PJ, Fouras A, Jadhav S, Bellare J, Hourigan K. Optimization of agitation speed in spinner flask for microcarrier structural integrity and expansion of induced pluripotent stem cells. Cytotechnology 2014; 68:45-59. [PMID: 25062986 DOI: 10.1007/s10616-014-9750-z] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Accepted: 06/05/2014] [Indexed: 12/20/2022] Open
Abstract
In recent times, the study and use of induced pluripotent stem cells (iPSC) have become important in order to avoid the ethical issues surrounding the use of embryonic stem cells. Therapeutic, industrial and research based use of iPSC requires large quantities of cells generated in vitro. Mammalian cells, including pluripotent stem cells, have been expanded using 3D culture, however current limitations have not been overcome to allow a uniform, optimized platform for dynamic culture of pluripotent stem cells to be achieved. In the current work, we have expanded mouse iPSC in a spinner flask using Cytodex 3 microcarriers. We have looked at the effect of agitation on the microcarrier survival and optimized an agitation speed that supports bead suspension and iPS cell expansion without any bead breakage. Under the optimized conditions, the mouse iPSC were able to maintain their growth, pluripotency and differentiation capability. We demonstrate that microcarrier survival and iPS cell expansion in a spinner flask are reliant on a very narrow range of spin rates, highlighting the need for precise control of such set ups and the need for improved design of more robust systems.
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Affiliation(s)
- Priyanka Gupta
- IITB Monash Research Academy, Mumbai, India. .,Department of Chemical Engineering, IIT Bombay, Mumbai, India. .,Department of Chemical Engineering, Monash University, Melbourne, VIC, Australia. .,Division of Biological Engineering, Monash University, Melbourne, VIC, Australia.
| | - Mohd-Zulhilmi Ismadi
- Division of Biological Engineering, Monash University, Melbourne, VIC, Australia.,Department of Mechanical and Aerospace Engineering, Monash University, Melbourne, VIC, Australia
| | - Paul J Verma
- Division of Biological Engineering, Monash University, Melbourne, VIC, Australia.,South Australian Research and Development Institute, Rosedale, SA, Australia
| | - Andreas Fouras
- Department of Mechanical and Aerospace Engineering, Monash University, Melbourne, VIC, Australia
| | - Sameer Jadhav
- Department of Chemical Engineering, IIT Bombay, Mumbai, India
| | - Jayesh Bellare
- Department of Chemical Engineering, IIT Bombay, Mumbai, India
| | - Kerry Hourigan
- Division of Biological Engineering, Monash University, Melbourne, VIC, Australia.,Department of Mechanical and Aerospace Engineering, Monash University, Melbourne, VIC, Australia
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19
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Privalova A, Markvicheva E, Sevrin C, Drozdova M, Kottgen C, Gilbert B, Ortiz M, Grandfils C. Biodegradable polyester-based microcarriers with modified surface tailored for tissue engineering. J Biomed Mater Res A 2014; 103:939-48. [DOI: 10.1002/jbm.a.35231] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Revised: 05/08/2014] [Accepted: 05/12/2014] [Indexed: 11/10/2022]
Affiliation(s)
- A. Privalova
- National Research Center “Kurchatov Institute”; Akademika Kurchatova Sq., 1 123182 Moscow Russia
| | - E. Markvicheva
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry; Russian Academy of Sciences; Miklukho-Maklaya Str., 16/10 117997 Moscow Russia
| | - Ch. Sevrin
- Interfacultary Research Centre on Biomaterials (CEIB); University of Liège, Chemistry Institute; B6C, B-4000 Liège (Sart-Tilman) Belgium
| | - M. Drozdova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry; Russian Academy of Sciences; Miklukho-Maklaya Str., 16/10 117997 Moscow Russia
| | - C. Kottgen
- Interfacultary Research Centre on Biomaterials (CEIB); University of Liège, Chemistry Institute; B6C, B-4000 Liège (Sart-Tilman) Belgium
| | - B. Gilbert
- Analytical Chemistry, Chemistry Department; University of Liège, Chemistry Institute; B6C, B-4000 Liège (Sart-Tilman) Belgium
| | - M. Ortiz
- Institutional Doctorate in Engineering and Science Materials; Universidad Autónoma de San Luis Potosí; 78290 México Mexico
| | - Ch. Grandfils
- Interfacultary Research Centre on Biomaterials (CEIB); University of Liège, Chemistry Institute; B6C, B-4000 Liège (Sart-Tilman) Belgium
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20
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Rossi F, Santoro M, Perale G. Polymeric scaffolds as stem cell carriers in bone repair. J Tissue Eng Regen Med 2013; 9:1093-119. [DOI: 10.1002/term.1827] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2012] [Revised: 07/29/2013] [Accepted: 08/30/2013] [Indexed: 12/16/2022]
Affiliation(s)
- Filippo Rossi
- Department of Chemistry, Materials and Chemical Engineering; 'Giulio Natta' Politecnico di Milano; Milan Italy
| | - Marco Santoro
- Department of Chemical and Biomolecular Engineering; Rice University; Houston TX USA
| | - Giuseppe Perale
- Department of Chemistry, Materials and Chemical Engineering; 'Giulio Natta' Politecnico di Milano; Milan Italy
- Department of Innovative Technologies; University of Southern Switzerland; Manno Switzerland
- Swiss Institute for Regenerative Medicine; Taverne Switzerland
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21
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Sart S, Agathos SN, Li Y. Engineering stem cell fate with biochemical and biomechanical properties of microcarriers. Biotechnol Prog 2013; 29:1354-66. [PMID: 24124017 DOI: 10.1002/btpr.1825] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2013] [Revised: 09/29/2013] [Indexed: 12/28/2022]
Abstract
Microcarriers have been widely used for various biotechnology applications because of their high scale-up potential, high reproducibility in regulating cellular behavior, and well-documented compliance with current Good Manufacturing Practices (cGMP). Recently, microcarriers have been emerging as a novel approach for stem cell expansion and differentiation, enabling potential scale-up of stem cell-derived products in large bioreactors. This review summarizes recent advances of using microcarriers in mesenchymal stem cell (MSC) and pluripotent stem cell (PSC) cultures. From the reported data, efficient expansion and differentiation of stem cells on microcarriers rely on their ability to modulate cell shape (i.e. round or spreading) and cell organization (i.e. aggregate size). Nonetheless, current screening of microcarriers remains empirical, and accurate understanding of how stem cells interact with microcarriers still remains unknown. This review suggests that accurate characterization of biochemical and biomechanical properties of microcarriers is required to fully exploit their potential in regulating stem cell fate decision. Due to the variety of microcarriers, such detailed analyses should lead to the rational design of application-specific microcarriers, enabling the exploitation of reproducible effects for large scale biomedical applications.
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Affiliation(s)
- Sébastien Sart
- Dept. of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Florida State University, Tallahassee, FL
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22
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Park JH, Pérez RA, Jin GZ, Choi SJ, Kim HW, Wall IB. Microcarriers designed for cell culture and tissue engineering of bone. TISSUE ENGINEERING PART B-REVIEWS 2013; 19:172-90. [PMID: 23126371 DOI: 10.1089/ten.teb.2012.0432] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Microspherical particulates have been an attractive form of biomaterials that find usefulness in cell delivery and tissue engineering. A variety of compositions, including bioactive ceramics, degradable polymers, and their composites, have been developed into a microsphere form and have demonstrated the potential to fill defective bone and to populate tissue cells on curved matrices. To enhance the capacity of cell delivery, the conventional solid form of spheres is engineered to have either a porous structure to hold cells or a thin shell to in-situ encapsulate cells within the structure. Microcarriers can also be a potential reservoir system of bioactive molecules that have therapeutic effects in regulating cell behaviors. Due to their specific form, advanced technologies to culture cell-loaded microcarriers are required, such as simple agitation or shaking, spinner flask, and rotating chamber system. Here, we review systematically, from material design to culture technology, the microspherical carriers used for the delivery of cells and tissue engineering, particularly of bone.
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Affiliation(s)
- Jeong-Hui Park
- Biomaterials and Tissue Engineering Lab, Department of Nanobiomedical Science & WCU Research Center, Dankook University, Cheonan, South Korea
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23
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Declercq HA, Tamara De Caluwé, Krysko O, Bachert C, Cornelissen MJ. Bone grafts engineered from human adipose-derived stem cells in dynamic 3D-environments. Biomaterials 2013; 34:1004-17. [DOI: 10.1016/j.biomaterials.2012.10.051] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Accepted: 10/22/2012] [Indexed: 02/06/2023]
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24
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Tsung LH, Chang KH, Chen JP. OSTEOGENESIS OF ADIPOSE-DERIVED STEM CELLS ON THREE-DIMENSIONAL, MACROPOROUS GELATIN–HYALURONIC ACID CRYOGELS. BIOMEDICAL ENGINEERING-APPLICATIONS BASIS COMMUNICATIONS 2012. [DOI: 10.4015/s1016237211002463] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Aim. Macroporous sponge-like gelatin–hyaluronic acid (Gl–HA) scaffolds cross-linked by EDC were produced using cryogelation technology, which allows for the preparation of highly porous scaffolds without compromising their mechanical properties, and is a more cost-efficient process than freeze drying. The aim of this study is to evaluate the osteogenic potential of porcine adipose-derived stem cells (PADSCs) in GI–HA cryogel. Method. The character of the GI–HA cryogel was evaluated. The pore size and the microstructure were observed using scanning electron microscope (SEM). The swelling ratio was measured. The PADSCs were harvested and isolated from pig inguinal area. Then, the GI–HA cryogel was seeded with PADSCs. The cryogel/ASCs mixture was cultured in osteogenic medium for 0, 3, 7, 14, and 21 days. The cell proliferation was measured by MTS. The RT-PCR of specific osteogenic gene expression such as osteocalcin (OC), RUNX2 was used to assess the osteogenic ability. The SEM was used to observe the interaction between scaffold and cells. Energy dispersive spectrum (EDS) was used to analyze the mineralization around cells. Results. The pore size was variable between 200 and 369 μm. The swelling ratio was around 8.67 ± 1.669%. The cell proliferation was increasing along with the increase of induction periods. The expression of early gene of RUNX2 and late gene of OC mean that the PADSCs were differentiated well into osteoblasts within the cryogels. The SEM detailed that the PADSCs cell can proliferate well in the pore of GI–HA scaffold. The EDS also demonstrated the mineralization of PADSCs in GI–HA scaffold after induction. Conclusions. To conclude, the PADSCs can proliferate and differentiate well into osteoblasts in the three-dimensional, porous, GI–HA cryogel.
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Affiliation(s)
- Liao Han Tsung
- Department of Plastic and Reconstructive Surgery, Craniofacial Research Center, Chang Gung Memorial Hospital, Chang Gung University, Taoyuan, Taiwan
- Department of Chemical and Materials Engineering, Chang Gung University, Gueishan, Taoyuan, Taiwan
| | - Kun-Hung Chang
- Department of Chemical and Materials Engineering, Chang Gung University, Gueishan, Taoyuan, Taiwan
| | - Jyh Ping Chen
- Department of Chemical and Materials Engineering, Chang Gung University, Gueishan, Taoyuan, Taiwan
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25
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Thakur G, Mitra A, Basak A, Sheet D. Characterization and scanning electron microscopic investigation of crosslinked freeze dried gelatin matrices for study of drug diffusivity and release kinetics. Micron 2012; 43:311-20. [DOI: 10.1016/j.micron.2011.09.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2010] [Revised: 07/30/2011] [Accepted: 09/09/2011] [Indexed: 01/15/2023]
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26
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Lippens E, Swennen I, Gironès J, Declercq H, Vertenten G, Vlaminck L, Gasthuys F, Schacht E, Cornelissen R. Cell survival and proliferation after encapsulation in a chemically modified Pluronic(R) F127 hydrogel. J Biomater Appl 2011; 27:828-39. [PMID: 22090430 DOI: 10.1177/0885328211427774] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Pluronic® F127 is a biocompatible, injectable, and thermoresponsive polymer with promising biomedical applications. In this study, a chemically modified form, i.e., Pluronic ALA-L with tailored degradation rate, was tested as an encapsulation vehicle for osteoblastic cells. UV cross-linking of the modified polymer results in a stable hydrogel with a slower degradation rate. Toxicological screening showed no adverse effects of the modified Pluronic ALA-L on the cell viability. Moreover, high viability of embedded cells in the cross-linked Pluronic ALA-L was observed with life/death fluorescent staining during a 7-day-culture period. Cells were also cultured on macroporous, cross-linked gelatin microbeads, called CultiSpher-S® carriers, and encapsulated into the modified cross-linked hydrogel. Also, in this situation, good cell proliferation and migration could be observed in vitro. Preliminary in vivo tests have shown the formation of new bone starting from the injected pre-loaded CultiSpher-S® carriers.
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Affiliation(s)
- Evi Lippens
- Department of Basic Medical Sciences, Ghent University, De Pintelaan 185, B-9000 Ghent, Belgium
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27
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Fernandes-Platzgummer A, Diogo MM, Baptista RP, da Silva CL, Cabral JMS. Scale-up of mouse embryonic stem cell expansion in stirred bioreactors. Biotechnol Prog 2011; 27:1421-32. [PMID: 21793233 DOI: 10.1002/btpr.658] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2011] [Revised: 06/08/2011] [Indexed: 01/07/2023]
Abstract
The aim of this study was to develop a robust, quality controlled and reproducible large-scale culture system using serum-free (SF) medium to obtain vast numbers of embryonic stem (ES) cells as a starting source for potential applications in tissue regeneration, as well as for drug screening studies. Mouse ES (mES) cells were firstly cultured on microcarriers in spinner flasks to investigate the effect of different parameters such as the agitation rate and the feeding regimen. Cells were successfully expanded at agitation rates up to 60 rpm using the SF medium and no significant differences in terms of growth kinetics or metabolic profiles were found between the two feeding regimens evaluated: 50% medium renewal every 24 h or 25% every 12 h. Overall, cells reached maximum concentrations of (4.2 ± 0.4) and (5.6 ± 0.8) ×10(6) cells/mL at Day 8 for cells fed once or twice per day; which corresponds to an increase in total cell number of 85 ± 7 and 108 ± 16, respectively. To have a more precise control over culture conditions and to yield a higher number of cells, the scale-up of the spinner flask culture system was successfully accomplished by using a fully controlled stirred tank bioreactor. In this case, the concentration of mES cells cultured on microcarriers increased 85 ± 15-fold over 11 days. Importantly, mES cells expanded under stirred conditions, in both spinner flask and fully controlled stirred tank bioreactor, using SF medium, retained the expression of pluripotency markers such as Oct-4, Nanog, and SSEA-1 and their differentiation potential into cells of the three embryonic germ layers.
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28
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Alfred R, Taiani JT, Krawetz RJ, Yamashita A, Rancourt DE, Kallos MS. Large-scale production of murine embryonic stem cell-derived osteoblasts and chondrocytes on microcarriers in serum-free media. Biomaterials 2011; 32:6006-16. [PMID: 21620471 DOI: 10.1016/j.biomaterials.2011.04.015] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2011] [Accepted: 04/05/2011] [Indexed: 12/20/2022]
Abstract
The generation of tissue-engineered constructs from stem cells for the treatment of musculoskeletal diseases may have immense impact in regenerative medicine, but there are difficulties associated with stem cell culture and differentiation, including the use of serum. Here we present serum-free protocols for the successful production of murine embryonic stem cell (mESC) derived osteoblasts and chondrocytes on CultiSpher S macroporous microcarriers in stirred suspension bioreactors. Various inoculum forms and agitation rates were investigated. Produced osteogenic cells were implanted ectopically into SCID mice and orthotopically into a murine burr-hole fracture model. Osterix, osteocalcin and collagen type I were upregulated in osteogenic cultures, while aggrecan and collagen type II were upregulated in chondrogenic cultures. Histological analysis using alizarin red S, von Kossa and alcian blue staining confirmed the presence of osteoblasts and chondrocytes, respectively in cultured microcarriers and excised tissue. Finally, implantation of derived cells into a mouse fracture model revealed cellular integration without any tumor formation. Overall, microcarriers may provide a supportive scaffold for ESC expansion and differentiation in a serum-free bioprocess for in vivo implantation. These findings lay the groundwork for the development of clinical therapies for musculoskeletal injuries and diseases using hESCs and iPS cells.
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Affiliation(s)
- Roz Alfred
- Pharmaceutical Production Research Facility (PPRF), Schulich School of Engineering, University of Calgary, Calgary, AB T2N1N4, Canada
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29
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Alfred R, Radford J, Fan J, Boon K, Krawetz R, Rancourt D, Kallos MS. Efficient suspension bioreactor expansion of murine embryonic stem cells on microcarriers in serum-free medium. Biotechnol Prog 2011; 27:811-23. [DOI: 10.1002/btpr.591] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2010] [Revised: 01/31/2011] [Indexed: 12/15/2022]
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Brun-Graeppi AKAS, Richard C, Bessodes M, Scherman D, Merten OW. Cell microcarriers and microcapsules of stimuli-responsive polymers. J Control Release 2011; 149:209-24. [DOI: 10.1016/j.jconrel.2010.09.023] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2010] [Accepted: 09/21/2010] [Indexed: 12/22/2022]
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Martin Y, Eldardiri M, Lawrence-Watt DJ, Sharpe JR. Microcarriers and Their Potential in Tissue Regeneration. TISSUE ENGINEERING PART B-REVIEWS 2011; 17:71-80. [PMID: 21083436 DOI: 10.1089/ten.teb.2010.0559] [Citation(s) in RCA: 97] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Yella Martin
- Blond McIndoe Research Foundation, Queen Victoria Hospital, East Grinstead, West Sussex, United kingdom
| | - Mohamed Eldardiri
- Blond McIndoe Research Foundation, Queen Victoria Hospital, East Grinstead, West Sussex, United kingdom
| | - Diana J. Lawrence-Watt
- Blond McIndoe Research Foundation, Queen Victoria Hospital, East Grinstead, West Sussex, United kingdom
| | - Justin R. Sharpe
- Blond McIndoe Research Foundation, Queen Victoria Hospital, East Grinstead, West Sussex, United kingdom
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Re’em T, Cohen S. Microenvironment Design for Stem Cell Fate Determination. TISSUE ENGINEERING III: CELL - SURFACE INTERACTIONS FOR TISSUE CULTURE 2011; 126:227-62. [DOI: 10.1007/10_2011_118] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Lau TT, Wang C, Png SW, Su K, Wang DA. Genipin-crosslinked microcarriers mediating hepatocellular aggregates formation and functionalities. J Biomed Mater Res A 2010; 96:204-11. [PMID: 21105169 DOI: 10.1002/jbm.a.32975] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2010] [Accepted: 08/17/2010] [Indexed: 12/12/2022]
Abstract
In engineered regenerative medicine, various types of scaffolds have been customized to pursue the optimal environment for different types of therapeutic cells. In liver therapeutic research, hepatocytes require attachment to solid anchors for survival and proliferation before they could grow into cellular aggregates with enhanced functionalities. Among the various biomaterials scaffolds and vehicles, microspherical cell carriers are suited to these requirements. Individual spheres may provide two-dimensional (2D) cell-affinitive surfaces for cell adhesion and spreading; whereas multiple microcarriers may form three-dimensional (3D) matrices with inter-spherical space for cell expansion and multicellular aggregation. In this study, we culture human liver carcinoma cell line (HepG2) cells on genipin-crosslinked gelatin microspheres of two different sizes. Results suggest that both microcarriers support cell adhesion, proliferation, and spontaneous formation of hepatocellular aggregates, among which the spheres with bigger size (200-300 μm) seem more favorable than the smaller ones in terms of aggregate formation and liver specific functionalities. These findings suggest that the genipin-crosslinked microcarrier is a competent vehicle for liver cell delivery.
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Affiliation(s)
- Ting Ting Lau
- Division of Bioengineering, School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, Singapore
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Uskoković V, Uskoković DP. Nanosized hydroxyapatite and other calcium phosphates: Chemistry of formation and application as drug and gene delivery agents. J Biomed Mater Res B Appl Biomater 2010; 96:152-91. [DOI: 10.1002/jbm.b.31746] [Citation(s) in RCA: 389] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Taiani JT, Krawetz RJ, Zur Nieden NI, Elizabeth Wu Y, Kallos MS, Matyas JR, Rancourt DE. Reduced differentiation efficiency of murine embryonic stem cells in stirred suspension bioreactors. Stem Cells Dev 2010; 19:989-98. [PMID: 19775198 DOI: 10.1089/scd.2009.0297] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
The use of embryonic stem cells (ESCs) for regenerative medicine has generated increased attention due to the favorable attributes of these cells; namely, they are pluripotent and possess long-term self-renewal capacity. The initial aims of the present study were: (i) to use stirred suspension bioreactors to expand and differentiate ESCs into osteogenic and chondrogenic cell types and (ii) to explore if these ESC-derived cells influenced skeletal healing in an in vivo fracture model. We show that differentiation protocols used in static culture are insufficient when applied directly to suspension culture bioreactors. Moreover, when bioreactor-differentiated cells are transplanted into a burr-hole defect in bone, severe disruption of the bone architecture was noted at the fracture site, as determined by microcomputed tomography (microCT) imaging and histopathology. Further characterization of the bioreactor-differentiated cultures revealed that a subpopulation of cells in the resulting aggregates expressed the pluripotency marker Oct-4 in the nucleus. Nuclear Oct-4 expression persisted even after 30 days of culture in the absence of leukemia inhibitory factor (LIF). Remarkably, and unlike ESCs differentiated into skeletal cell types in static cultures, bioreactor-differentiated aggregates implanted subcutaneously into SCID mice formed teratomas. The development of effective ESC differentiation protocols for suspension bioreactors will require a more complete understanding of the environmental conditions within these culture systems and the influence that these conditions have on the regulation of pluripotency and differentiation in ESCs.
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Affiliation(s)
- Jaymi T Taiani
- Department of Medical Science, Schulich School of Engineering, Schulich School of Engineering, University of Calgary , Calgary, Alberta, Canada
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Jukes JM, van Blitterswijk CA, de Boer J. Skeletal tissue engineering using embryonic stem cells. J Tissue Eng Regen Med 2010; 4:165-80. [PMID: 19967745 DOI: 10.1002/term.234] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Various cell types have been investigated as candidate cell sources for cartilage and bone tissue engineering. In this review, we focused on chondrogenic and osteogenic differentiation of mouse and human embryonic stem cells (ESCs) and their potential in cartilage and bone tissue engineering. A decade ago, mouse ESCs were first used as a model to study cartilage and bone development and essential genes, factors and conditions for chondrogenesis and osteogenesis were unravelled. This knowledge, combined with data from the differentiation of adult stem cells, led to successful chondrogenic and osteogenic differentiation of mouse ESCs and later also human ESCs. Next, researchers focused on the use of ESCs for skeletal tissue engineering. Cartilage and bone tissue was formed in vivo using ESCs. However, the amount, homogeneity and stability of the cartilage and bone formed were still insufficient for clinical application. The current protocols require improvement not only in differentiation efficiency but also in ESC-specific hurdles, such as tumourigenicity and immunorejection. In addition, some of the general tissue engineering challenges, such as cell seeding and nutrient limitation in larger constructs, will also apply for ESCs. In conclusion, there are still many challenges, but there is potential for ESCs in skeletal tissue engineering.
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Affiliation(s)
- Jojanneke M Jukes
- MIRA Institute for Biomedical Technology and Technical Medicine, Department of Tissue Regeneration, University of Twente, Enschede, The Netherlands
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Vertenten G, Lippens E, Gironès J, Gorski T, Declercq H, Saunders J, Van den Broeck W, Chiers K, Duchateau L, Schacht E, Cornelissen M, Gasthuys F, Vlaminck L. Evaluation of an Injectable, Photopolymerizable, and Three-Dimensional Scaffold Based on Methacrylate-Endcapped Poly(D,L-Lactide-co-ɛ-Caprolactone) Combined with Autologous Mesenchymal Stem Cells in a Goat Tibial Unicortical Defect Model. Tissue Eng Part A 2009; 15:1501-11. [DOI: 10.1089/ten.tea.2008.0367] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Geert Vertenten
- Department of Surgery and Anaesthesiology of Domestic Animals, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Evi Lippens
- Department of Human Anatomy, Embryology, Histology, and Medical Physics, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Jordi Gironès
- Polymer Material Research Group, Faculty of Sciences, Ghent University, Ghent, Belgium
| | - Tomasz Gorski
- Polymer Material Research Group, Faculty of Sciences, Ghent University, Ghent, Belgium
| | - Heidi Declercq
- Department of Human Anatomy, Embryology, Histology, and Medical Physics, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Jimmy Saunders
- Department of Medical Imaging of Domestic Animals, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Wim Van den Broeck
- Department of Morphology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Koen Chiers
- Department of Pathology, Bacteriology, and Poultry Diseases, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Luc Duchateau
- Department of Physiology and Biometrics, Faculty of Veterinary Medicine, Ghent University Merelbeke, Belgium
| | - Etiene Schacht
- Polymer Material Research Group, Faculty of Sciences, Ghent University, Ghent, Belgium
| | - Maria Cornelissen
- Department of Human Anatomy, Embryology, Histology, and Medical Physics, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Frank Gasthuys
- Department of Surgery and Anaesthesiology of Domestic Animals, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Lieven Vlaminck
- Department of Surgery and Anaesthesiology of Domestic Animals, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
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Fernandes A, Marinho P, Sartore R, Paulsen B, Mariante R, Castilho L, Rehen S. Successful scale-up of human embryonic stem cell production in a stirred microcarrier culture system. Braz J Med Biol Res 2009; 42:515-22. [DOI: 10.1590/s0100-879x2009000600007] [Citation(s) in RCA: 92] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2009] [Accepted: 04/13/2009] [Indexed: 01/19/2023] Open
Affiliation(s)
| | - P.A.N. Marinho
- Universidade Federal do Rio de Janeiro; Universidade Federal do Rio de Janeiro
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Abstract
Spheramine (Bayer Schering Pharma AG, Berlin, Germany) is currently being tested as a new approach for the treatment of Parkinson's disease (PD). It consists of an active component of cultured human retinal pigment epithelial (hRPE) cells, attached to an excipient part of cross-linked porcine gelatin microcarrriers. Spheramine is administered by stereotactic implantation into the striatum of PD patients and the use of immunosuppression is not required. Current pharmacologic therapies of PD are oriented to the administration of dopaminergic medications. Human RPE cells produce levodopa, and this constitutes the rationale to use Spheramine for the treatment of PD. The preclinical development of Spheramine included extensive biologic, pharmacologic, and toxicologic studies in vitro and in animal models of PD. The first clinical trial in humans evaluated the safety and efficacy of Spheramine implanted in the postcommissural putamen contralateral to the most affected side in six patients with advanced PD. This open-label study demonstrated good tolerability and showed sustained motor clinical improvement. A phase II double-blind, randomized, multicenter, placebo-controlled (sham surgery) study is underway to evaluate safety, tolerability, and efficacy of Spheramine implanted bilaterally into the postcommissural putamen of patients with advanced PD. Spheramine represents a treatment approach with the potential of supplying a more continuous delivery of levodopa to the striatum in advanced PD than can be achieved with oral therapy alone.
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Affiliation(s)
- Natividad P Stover
- Department of Neurology, The University of Alabama at Birmingham, Birmingham, Alabama 35294, USA.
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Henry GRP, Heise A, Bottai D, Formenti A, Gorio A, Di Giulio AM, Koning CE. Acrylate End-Capped Poly(ester-carbonate) and Poly(ether-ester)s for Polymer-on-Multielectrode Array Devices: Synthesis, Photocuring, and Biocompatibility. Biomacromolecules 2008; 9:867-78. [DOI: 10.1021/bm701191e] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gaëtan R. P. Henry
- Laboratory of Polymer Chemistry, Eindhoven University of Technology Technology (TU/e), P.O. Box 513, 5600 MB Eindhoven, The Netherlands, DSM Research, P.O. Box 18, 6160 MD Geleen, The Netherlands, Dipartimento di Medicina, Chirurgia e Odontoiatria Ospedale S. Paolo, Università di Milano, Via Di Rudinì 8, Milan I-20142, Italy, and Instituto di Fisiologia Umana II, Università di Milano, Via Mangiagalli 32, Milan I-20133, Italy
| | - Andreas Heise
- Laboratory of Polymer Chemistry, Eindhoven University of Technology Technology (TU/e), P.O. Box 513, 5600 MB Eindhoven, The Netherlands, DSM Research, P.O. Box 18, 6160 MD Geleen, The Netherlands, Dipartimento di Medicina, Chirurgia e Odontoiatria Ospedale S. Paolo, Università di Milano, Via Di Rudinì 8, Milan I-20142, Italy, and Instituto di Fisiologia Umana II, Università di Milano, Via Mangiagalli 32, Milan I-20133, Italy
| | - Daniele Bottai
- Laboratory of Polymer Chemistry, Eindhoven University of Technology Technology (TU/e), P.O. Box 513, 5600 MB Eindhoven, The Netherlands, DSM Research, P.O. Box 18, 6160 MD Geleen, The Netherlands, Dipartimento di Medicina, Chirurgia e Odontoiatria Ospedale S. Paolo, Università di Milano, Via Di Rudinì 8, Milan I-20142, Italy, and Instituto di Fisiologia Umana II, Università di Milano, Via Mangiagalli 32, Milan I-20133, Italy
| | - Alessandro Formenti
- Laboratory of Polymer Chemistry, Eindhoven University of Technology Technology (TU/e), P.O. Box 513, 5600 MB Eindhoven, The Netherlands, DSM Research, P.O. Box 18, 6160 MD Geleen, The Netherlands, Dipartimento di Medicina, Chirurgia e Odontoiatria Ospedale S. Paolo, Università di Milano, Via Di Rudinì 8, Milan I-20142, Italy, and Instituto di Fisiologia Umana II, Università di Milano, Via Mangiagalli 32, Milan I-20133, Italy
| | - Alfredo Gorio
- Laboratory of Polymer Chemistry, Eindhoven University of Technology Technology (TU/e), P.O. Box 513, 5600 MB Eindhoven, The Netherlands, DSM Research, P.O. Box 18, 6160 MD Geleen, The Netherlands, Dipartimento di Medicina, Chirurgia e Odontoiatria Ospedale S. Paolo, Università di Milano, Via Di Rudinì 8, Milan I-20142, Italy, and Instituto di Fisiologia Umana II, Università di Milano, Via Mangiagalli 32, Milan I-20133, Italy
| | - Anna Maria Di Giulio
- Laboratory of Polymer Chemistry, Eindhoven University of Technology Technology (TU/e), P.O. Box 513, 5600 MB Eindhoven, The Netherlands, DSM Research, P.O. Box 18, 6160 MD Geleen, The Netherlands, Dipartimento di Medicina, Chirurgia e Odontoiatria Ospedale S. Paolo, Università di Milano, Via Di Rudinì 8, Milan I-20142, Italy, and Instituto di Fisiologia Umana II, Università di Milano, Via Mangiagalli 32, Milan I-20133, Italy
| | - Cor E. Koning
- Laboratory of Polymer Chemistry, Eindhoven University of Technology Technology (TU/e), P.O. Box 513, 5600 MB Eindhoven, The Netherlands, DSM Research, P.O. Box 18, 6160 MD Geleen, The Netherlands, Dipartimento di Medicina, Chirurgia e Odontoiatria Ospedale S. Paolo, Università di Milano, Via Di Rudinì 8, Milan I-20142, Italy, and Instituto di Fisiologia Umana II, Università di Milano, Via Mangiagalli 32, Milan I-20133, Italy
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Hwang NS, Varghese S, Elisseeff J. Controlled differentiation of stem cells. Adv Drug Deliv Rev 2008; 60:199-214. [PMID: 18006108 DOI: 10.1016/j.addr.2007.08.036] [Citation(s) in RCA: 253] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2007] [Accepted: 08/18/2007] [Indexed: 12/13/2022]
Abstract
The extracellular microenvironment plays a significant role in controlling cellular behavior. Identification of appropriate biomaterials that support cellular attachment, proliferation and, most importantly in the case of human embryonic stem cells, lineage-specific differentiation is critical for tissue engineering and cellular therapy. In addition to growth factors and morphogenetic factors known to induce lineage commitment of stem cells, a number of scaffolding materials, including synthetic and naturally-derived biomaterials, have been utilized in tissue engineering approaches to direct differentiation. This review focuses on recent emerging findings and well-characterized differentiation models of human embryonic stem cells. Additionally, we also discuss about various strategies that have been used in stem cell expansion.
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Yinan Z, Guomin W. Allogeneic stem cells seeded tissue engineered bladder: A possible alternative for bladder reconstruction and treatment to bladder cancer. Med Hypotheses 2008; 70:294-7. [PMID: 17669597 DOI: 10.1016/j.mehy.2007.05.046] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2007] [Accepted: 05/28/2007] [Indexed: 10/23/2022]
Abstract
Bladder cancer remains a difficult management problem, because of the high recurrence rate or the functional disorder of bladder post radical cystectomy. The autologous tissue engineering techniques have been advanced enough to reconstruct functional bladders for patients with myelomeningocele, but not capable for bladder cancer patients. On the other hand, allogeneic stem cells share the same multipotential, self-renewing and multi differentiated abilities with autologous ones, and would present anti-tumor effects when transplanted to recipients. Since the stem cells seeded tissue engineering techniques for bladder regeneration have already been feasible, a hypothesis was then proposed that the allogeneic stem cells seeded tissue engineered bladder would be a possible alternative for functional bladder reconstructions and treatments for bladder cancer recurrences and latent metastases postoperatively.
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Affiliation(s)
- Zhang Yinan
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
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