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Nguyen TT, Kil YS, Sung JH, Youn YS, Jeong JH, Lee JH, Jiang HL, Yook S, Nam JW, Jeong JH. Fabrication of stem cell heterospheroids with sustained-release chitosan and poly(lactic-co-glycolic acid) microspheres to guide cell fate toward chondrogenic differentiation. Int J Biol Macromol 2024; 263:130356. [PMID: 38395283 DOI: 10.1016/j.ijbiomac.2024.130356] [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: 10/30/2023] [Revised: 02/19/2024] [Accepted: 02/19/2024] [Indexed: 02/25/2024]
Abstract
Mesenchymal stem cell (MSC)-based therapies show great potential in treating various diseases. However, control of the fate of injected cells needs to be improved. In this work, we developed an efficient methodology for modulating chondrogenic differentiation of MSCs. We fabricated heterospheroids with two sustained-release depots, a quaternized chitosan microsphere (QCS-MP) and a poly (lactic-co-glycolic acid) microsphere (PLGA-MP). The results show that heterospheroids composed of 1 × 104 to 5 × 104 MSCs formed rapidly during incubation in methylcellulose medium and maintained high cell viability in long-term culture. The MPs were uniformly distributed in the heterospheroids, as shown by confocal laser scanning microscopy. Incorporation of transforming growth factor beta 3 into QCS-MPs and of dexamethasone into PLGA-MPs significantly promoted the expression of chondrogenic genes and high accumulation of glycosaminoglycan in heterospheroids. Changes in crucial metabolites in the dual drug depot-engineered heterospheroids were also evaluated using 1H NMR-based metabolomics analysis to verify their successful chondrogenic differentiation. Our heterospheroid fabrication platform could be used in tissue engineering to study the effects of various therapeutic agents on stem cell fate.
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Affiliation(s)
- Tiep Tien Nguyen
- Department of Precision Medicine, School of Medicine, Sungkyunkwan University, Suwon, Gyeonggi 16419, Republic of Korea; College of Pharmacy, Keimyung University, Daegu 42601, Republic of Korea; Epibiotech Co. Ltd., Incheon 21983, Republic of Korea
| | - Yun-Seo Kil
- College of Pharmacy, Yeungnam University, Gyeongsan, Gyeongbuk 38541, Republic of Korea; College of Pharmacy, Inje Institute of Pharmaceutical Sciences and Research, Inje University, Gimhae, Gyeongnam 50834, Republic of Korea
| | - Jong-Hyuk Sung
- Epibiotech Co. Ltd., Incheon 21983, Republic of Korea; College of Pharmacy, Yonsei Institute of Pharmaceutical Sciences, Yonsei University, Incheon 21983, Republic of Korea
| | - Yu Seok Youn
- School of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi 16419, Republic of Korea
| | - Ji Hoon Jeong
- School of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi 16419, Republic of Korea
| | - Jung Heon Lee
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon, Gyeonggi 16419, Republic of Korea
| | - Hu-Lin Jiang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China; Jiangsu Key Laboratory of Druggability of Biopharmaceuticals, China Pharmaceutical University, Nanjing 210009, China; Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, China Pharmaceutical University, Nanjing 210009, China; NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, China Pharmaceutical University, Nanjing 210009, China
| | - Simmyung Yook
- College of Pharmacy, Keimyung University, Daegu 42601, Republic of Korea; School of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi 16419, Republic of Korea; Department of Biopharmaceutical Convergence, Sungkyunkwan University, Suwon 16419, Republic of Korea.
| | - Joo-Won Nam
- College of Pharmacy, Yeungnam University, Gyeongsan, Gyeongbuk 38541, Republic of Korea.
| | - Jee-Heon Jeong
- Department of Precision Medicine, School of Medicine, Sungkyunkwan University, Suwon, Gyeonggi 16419, Republic of Korea.
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2
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The role of TGF-beta3 in cartilage development and osteoarthritis. Bone Res 2023; 11:2. [PMID: 36588106 PMCID: PMC9806111 DOI: 10.1038/s41413-022-00239-4] [Citation(s) in RCA: 29] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 09/25/2022] [Accepted: 11/03/2022] [Indexed: 01/03/2023] Open
Abstract
Articular cartilage serves as a low-friction, load-bearing tissue without the support with blood vessels, lymphatics and nerves, making its repair a big challenge. Transforming growth factor-beta 3 (TGF-β3), a vital member of the highly conserved TGF-β superfamily, plays a versatile role in cartilage physiology and pathology. TGF-β3 influences the whole life cycle of chondrocytes and mediates a series of cellular responses, including cell survival, proliferation, migration, and differentiation. Since TGF-β3 is involved in maintaining the balance between chondrogenic differentiation and chondrocyte hypertrophy, its regulatory role is especially important to cartilage development. Increased TGF-β3 plays a dual role: in healthy tissues, it can facilitate chondrocyte viability, but in osteoarthritic chondrocytes, it can accelerate the progression of disease. Recently, TGF-β3 has been recognized as a potential therapeutic target for osteoarthritis (OA) owing to its protective effect, which it confers by enhancing the recruitment of autologous mesenchymal stem cells (MSCs) to damaged cartilage. However, the biological mechanism of TGF-β3 action in cartilage development and OA is not well understood. In this review, we systematically summarize recent progress in the research on TGF-β3 in cartilage physiology and pathology, providing up-to-date strategies for cartilage repair and preventive treatment.
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3
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Song H, Park KH. Regulation and function of SOX9 during cartilage development and regeneration. Semin Cancer Biol 2020; 67:12-23. [PMID: 32380234 DOI: 10.1016/j.semcancer.2020.04.008] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 09/23/2019] [Accepted: 04/26/2020] [Indexed: 12/21/2022]
Abstract
Chondrogenesis is a highly coordinated event in embryo development, adult homeostasis, and repair of the vertebrate cartilage. Fate decisions and differentiation of chondrocytes accompany differential expression of genes critical for each step of chondrogenesis. SOX9 is a master transcription factor that participates in sequential events in chondrogenesis by regulating a series of downstream factors in a stage-specific manner. SOX9 either works alone or in combination with downstream SOX transcription factors, SOX5 and SOX6 as chondrogenic SOX Trio. SOX9 is reduced in the articular cartilage of patients with osteoarthritis while highly maintained during tumorigenesis of cartilage and bone. Gene therapy using viral and non-viral vectors accompanied by tissue engineering (scaffolds) is a promising tool to regenerate impaired cartilage. Delivery of SOX9 or chondrogenic SOX Trio into cells produces efficient therapeutic effects on chondrogenesis and this event is facilitated by scaffolds. Non-viral vector-guided delivery systems encapsulated or loaded in mechanically stable solid scaffolds are useful for the regeneration of articular cartilage. Here we review major milestones and most recent studies focusing on regulation and function of chondrogenic SOX Trio, during chondrogenesis and cartilage regeneration, and on the development of advanced technologies in gene delivery with tissue engineering to improve efficiency of cartilage repair process.
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Affiliation(s)
- Haengseok Song
- Department of Biomedical Science, CHA University, Seongnam, Republic of Korea
| | - Keun-Hong Park
- Department of Biomedical Science, CHA University, Seongnam, Republic of Korea.
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4
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Leng Q, Chen L, Lv Y. RNA-based scaffolds for bone regeneration: application and mechanisms of mRNA, miRNA and siRNA. Am J Cancer Res 2020; 10:3190-3205. [PMID: 32194862 PMCID: PMC7053199 DOI: 10.7150/thno.42640] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 01/16/2020] [Indexed: 02/07/2023] Open
Abstract
Globally, more than 1.5 million patients undergo bone graft surgeries annually, and the development of biomaterial scaffolds that mimic natural bone for bone grafting remains a tremendous challenge. In recent decades, due to the improved understanding of the mechanisms of bone remodeling and the rapid development of gene therapy, RNA (including messenger RNA (mRNA), microRNA (miRNA), and short interfering RNA (siRNA)) has attracted increased attention as a new tool for bone tissue engineering due to its unique nature and great potential to cure bone defects. Different types of RNA play roles via a variety of mechanisms in bone-related cells in vivo as well as after synthesis in vitro. In addition, RNAs are delivered to injured sites by loading into scaffolds or systemic administration after combination with vectors for bone tissue engineering. However, the challenge of effectively and stably delivering RNA into local tissue remains to be solved. This review describes the mechanisms of the three types of RNAs and the application of the relevant types of RNA delivery vectors and scaffolds in bone regeneration. The improvements in their development are also discussed.
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He Q, Zhang J, Liao Y, Alakpa EV, Bunpetch V, Zhang J, Ouyang H. Current advances in microsphere based cell culture and tissue engineering. Biotechnol Adv 2019; 39:107459. [PMID: 31682922 DOI: 10.1016/j.biotechadv.2019.107459] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 09/12/2019] [Accepted: 10/01/2019] [Indexed: 12/12/2022]
Affiliation(s)
- Qiulin He
- Department of Orthopaedic Surgery, Second Affiliated Hospital & Zhejiang University-University of Edinburgh Institute & School of Basic Medicine, Zhejiang University School of Medicine, Hangzhou 310058, China.; Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, Zhejiang University School of Medicine, Hangzhou 310058, China.; Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Jingwei Zhang
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, Zhejiang University School of Medicine, Hangzhou 310058, China.; Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Youguo Liao
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, Zhejiang University School of Medicine, Hangzhou 310058, China.; Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou 310058, China.; Guangxi Collaborative Innovation Center for Biomedicine, Guangxi Medical University, Nanning 530021, China
| | - Enateri Verissarah Alakpa
- Department of Orthopaedic Surgery, Second Affiliated Hospital & Zhejiang University-University of Edinburgh Institute & School of Basic Medicine, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Varitsara Bunpetch
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, Zhejiang University School of Medicine, Hangzhou 310058, China.; Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Jiayan Zhang
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, Zhejiang University School of Medicine, Hangzhou 310058, China.; Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Hongwei Ouyang
- Department of Orthopaedic Surgery, Second Affiliated Hospital & Zhejiang University-University of Edinburgh Institute & School of Basic Medicine, Zhejiang University School of Medicine, Hangzhou 310058, China.; Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, Zhejiang University School of Medicine, Hangzhou 310058, China.; Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou 310058, China.; Department of Sports Medicine, Zhejiang University School of Medicine, Hangzhou 310058, China.; China Orthopedic Regenerative Medicine Group (CORMed), China..
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Gonzalez-Fernandez T, Rathan S, Hobbs C, Pitacco P, Freeman FE, Cunniffe GM, Dunne NJ, McCarthy HO, Nicolosi V, O'Brien FJ, Kelly DJ. Pore-forming bioinks to enable spatio-temporally defined gene delivery in bioprinted tissues. J Control Release 2019; 301:13-27. [PMID: 30853527 DOI: 10.1016/j.jconrel.2019.03.006] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 03/02/2019] [Accepted: 03/06/2019] [Indexed: 12/17/2022]
Abstract
The regeneration of complex tissues and organs remains a major clinical challenge. With a view towards bioprinting such tissues, we developed a new class of pore-forming bioink to spatially and temporally control the presentation of therapeutic genes within bioprinted tissues. By blending sacrificial and stable hydrogels, we were able to produce bioinks whose porosity increased with time following printing. When combined with amphipathic peptide-based plasmid DNA delivery, these bioinks supported enhanced non-viral gene transfer to stem cells in vitro. By modulating the porosity of these bioinks, it was possible to direct either rapid and transient (pore-forming bioinks), or slower and more sustained (solid bioinks) transfection of host or transplanted cells in vivo. To demonstrate the utility of these bioinks for the bioprinting of spatially complex tissues, they were next used to zonally position stem cells and plasmids encoding for either osteogenic (BMP2) or chondrogenic (combination of TGF-β3, BMP2 and SOX9) genes within networks of 3D printed thermoplastic fibers to produce mechanically reinforced, gene activated constructs. In vivo, these bioprinted tissues supported the development of a vascularised, bony tissue overlaid by a layer of stable cartilage. When combined with multiple-tool biofabrication strategies, these gene activated bioinks can enable the bioprinting of a wide range of spatially complex tissues.
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Affiliation(s)
- T Gonzalez-Fernandez
- Trinity Centre for Bioengineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Ireland; Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, Ireland; Advanced Materials and Bioengineering Research Centre (AMBER), Trinity College Dublin and Royal College of Surgeons, Ireland
| | - S Rathan
- Trinity Centre for Bioengineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Ireland; Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, Ireland
| | - C Hobbs
- Advanced Materials and Bioengineering Research Centre (AMBER), Trinity College Dublin and Royal College of Surgeons, Ireland; School of Physics, Trinity College Dublin, Ireland; Centre for Research of Adaptive Nanostructures and Nanodevices, Trinity College Dublin, Ireland
| | - P Pitacco
- Trinity Centre for Bioengineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Ireland; Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, Ireland
| | - F E Freeman
- Trinity Centre for Bioengineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Ireland; Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, Ireland
| | - G M Cunniffe
- Trinity Centre for Bioengineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Ireland; Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, Ireland
| | - N J Dunne
- Trinity Centre for Bioengineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Ireland; Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, Ireland; Advanced Materials and Bioengineering Research Centre (AMBER), Trinity College Dublin and Royal College of Surgeons, Ireland; Centre for Medical Engineering Research, School of Mechanical and Manufacturing Engineering, Dublin City University, Ireland; School of Mechanical and Manufacturing Engineering, Dublin City University, Ireland; School of Pharmacy, Queen's University Belfast, UK
| | - H O McCarthy
- School of Pharmacy, Queen's University Belfast, UK
| | - V Nicolosi
- Advanced Materials and Bioengineering Research Centre (AMBER), Trinity College Dublin and Royal College of Surgeons, Ireland; School of Physics, Trinity College Dublin, Ireland; Centre for Research of Adaptive Nanostructures and Nanodevices, Trinity College Dublin, Ireland
| | - F J O'Brien
- Trinity Centre for Bioengineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Ireland; Advanced Materials and Bioengineering Research Centre (AMBER), Trinity College Dublin and Royal College of Surgeons, Ireland; Tissue Engineering Research Group, Dept. of Anatomy, Royal College of Surgeons in, Ireland
| | - D J Kelly
- Trinity Centre for Bioengineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Ireland; Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, Ireland; Advanced Materials and Bioengineering Research Centre (AMBER), Trinity College Dublin and Royal College of Surgeons, Ireland; Tissue Engineering Research Group, Dept. of Anatomy, Royal College of Surgeons in, Ireland.
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7
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Controlled Non-Viral Gene Delivery in Cartilage and Bone Repair: Current Strategies and Future Directions. ADVANCED THERAPEUTICS 2018. [DOI: 10.1002/adtp.201800038] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Qu M, Xiao W, Tian J, Wang S, Li H, Liu X, Yang X, Li B, Liao X. Fabrication of superparamagnetic nanofibrous poly(l
-lactic acid)/γ-Fe2
O3
microspheres for cell carriers. J Biomed Mater Res B Appl Biomater 2018; 107:511-520. [DOI: 10.1002/jbm.b.34141] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Revised: 02/22/2018] [Accepted: 03/25/2018] [Indexed: 02/05/2023]
Affiliation(s)
- Moyuan Qu
- Chongqing Key Laboratory of Nano/Micro Composite Materials and Devices; Chongqing University of Science and Technology; Chongqing China
- State Key Laboratory of Oral Diseases; National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University; Chengdu China
| | - Wenqian Xiao
- Chongqing Key Laboratory of Nano/Micro Composite Materials and Devices; Chongqing University of Science and Technology; Chongqing China
- Chongqing Engineering Laboratory of Nano/Micro Biomedical Detection Technology; Chongqing University of Science and Technology; Chongqing China
| | - Jiarong Tian
- Chongqing Key Laboratory of Nano/Micro Composite Materials and Devices; Chongqing University of Science and Technology; Chongqing China
- Chongqing Engineering Laboratory of Nano/Micro Biomedical Detection Technology; Chongqing University of Science and Technology; Chongqing China
| | - Song Wang
- Chongqing Key Laboratory of Nano/Micro Composite Materials and Devices; Chongqing University of Science and Technology; Chongqing China
- Chongqing Engineering Laboratory of Nano/Micro Biomedical Detection Technology; Chongqing University of Science and Technology; Chongqing China
| | - Hong Li
- Chongqing Key Laboratory of Nano/Micro Composite Materials and Devices; Chongqing University of Science and Technology; Chongqing China
- Chongqing Engineering Laboratory of Nano/Micro Biomedical Detection Technology; Chongqing University of Science and Technology; Chongqing China
| | - Xue Liu
- Chongqing Key Laboratory of Nano/Micro Composite Materials and Devices; Chongqing University of Science and Technology; Chongqing China
- Chongqing Engineering Laboratory of Nano/Micro Biomedical Detection Technology; Chongqing University of Science and Technology; Chongqing China
| | - Xiaoling Yang
- Chongqing Key Laboratory of Nano/Micro Composite Materials and Devices; Chongqing University of Science and Technology; Chongqing China
- Chongqing Engineering Laboratory of Nano/Micro Biomedical Detection Technology; Chongqing University of Science and Technology; Chongqing China
| | - Bo Li
- Chongqing Key Laboratory of Nano/Micro Composite Materials and Devices; Chongqing University of Science and Technology; Chongqing China
- Chongqing Engineering Laboratory of Nano/Micro Biomedical Detection Technology; Chongqing University of Science and Technology; Chongqing China
| | - Xiaoling Liao
- Chongqing Key Laboratory of Nano/Micro Composite Materials and Devices; Chongqing University of Science and Technology; Chongqing China
- Chongqing Engineering Laboratory of Nano/Micro Biomedical Detection Technology; Chongqing University of Science and Technology; Chongqing China
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Moore AL, Marshall CD, Longaker MT. Minimizing Skin Scarring through Biomaterial Design. J Funct Biomater 2017; 8:jfb8010003. [PMID: 28117733 PMCID: PMC5371876 DOI: 10.3390/jfb8010003] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Revised: 01/03/2017] [Accepted: 01/16/2017] [Indexed: 12/14/2022] Open
Abstract
Wound healing continues to be a major burden to patients, though research in the field has expanded significantly. Due to an aging population and increasing comorbid conditions, the cost of chronic wounds is expected to increase for patients and the U.S. healthcare system alike. With this knowledge, the number of engineered products to facilitate wound healing has also increased dramatically, with some already in clinical use. In this review, the major biomaterials used to facilitate skin wound healing will be examined, with particular attention allocated to the science behind their development. Experimental therapies will also be evaluated.
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Affiliation(s)
- Alessandra L Moore
- Division of General and Gastrointestinal Surgery, Brigham and Women's Hospital, Boston, MA 02115, USA.
- Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA.
| | - Clement D Marshall
- Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA.
| | - Michael T Longaker
- Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA.
- Institute of Stem Cell Biology and Regenerative Medicine, Stanford University, Stanford, CA 94305, USA.
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Lio D, Yeo D, Xu C. Control of Alginate Core Size in Alginate-Poly (Lactic-Co-Glycolic) Acid Microparticles. NANOSCALE RESEARCH LETTERS 2016; 11:9. [PMID: 26745977 PMCID: PMC4706538 DOI: 10.1186/s11671-015-1222-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Accepted: 12/27/2015] [Indexed: 06/05/2023]
Abstract
Core-shell alginate-poly (lactic-co-glycolic) acid (PLGA) microparticles are potential candidates to improve hydrophilic drug loading while facilitating controlled release. This report studies the influence of the alginate core size on the drug release profile of alginate-PLGA microparticles and its size. Microparticles are synthesized through double-emulsion fabrication via a concurrent ionotropic gelation and solvent extraction. The size of alginate core ranges from approximately 10, 50, to 100 μm when the emulsification method at the first step is homogenization, vortexing, or magnetic stirring, respectively. The second step emulsification for all three conditions is performed with magnetic stirring. Interestingly, although the alginate core has different sizes, alginate-PLGA microparticle diameter does not change. However, drug release profiles are dramatically different for microparticles comprising different-sized alginate cores. Specifically, taking calcein as a model drug, microparticles containing the smallest alginate core (10 μm) show the slowest release over a period of 26 days with burst release less than 1 %.
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Affiliation(s)
- Daniel Lio
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore, 637457, Singapore
- NTU-Northwestern Institute of Nanomedicine, Interdisciplinary Graduate School, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - David Yeo
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore, 637457, Singapore
| | - Chenjie Xu
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore, 637457, Singapore.
- NTU-Northwestern Institute of Nanomedicine, Interdisciplinary Graduate School, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore.
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Park JS, Lim HJ, Yi SW, Park KH. Stem cell differentiation-related protein-loaded PLGA microspheres as a novel platform micro-typed scaffold for chondrogenesis. Biomed Mater 2016; 11:055003. [DOI: 10.1088/1748-6041/11/5/055003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Tao K, Frisch J, Rey-Rico A, Venkatesan JK, Schmitt G, Madry H, Lin J, Cucchiarini M. Co-overexpression of TGF-β and SOX9 via rAAV gene transfer modulates the metabolic and chondrogenic activities of human bone marrow-derived mesenchymal stem cells. Stem Cell Res Ther 2016; 7:20. [PMID: 26830674 PMCID: PMC4736112 DOI: 10.1186/s13287-016-0280-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 12/16/2015] [Accepted: 01/13/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Articular cartilage has a limited potential for self-healing. Transplantation of genetically modified progenitor cells like bone marrow-derived mesenchymal stem cells (MSCs) is an attractive strategy to improve the intrinsic repair capacities of damaged articular cartilage. METHODS In this study, we examined the potential benefits of co-overexpressing the pleiotropic transformation growth factor beta (TGF-β) with the cartilage-specific transcription factor SOX9 via gene transfer with recombinant adeno-associated virus (rAAV) vectors upon the biological activities of human MSCs (hMSCs). Freshly isolated hMSCs were transduced over time with separate rAAV vectors carrying either TGF-β or sox9 in chondrogenically-induced aggregate cultures to evaluate the efficacy and duration of transgene expression and to monitor the effects of rAAV-mediated genetic modification upon the cellular activities (proliferation, matrix synthesis) and chondrogenic differentiation potency compared with control conditions (lacZ treatment, sequential transductions). RESULTS Significant, prolonged TGF-β/sox9 co-overexpression was achieved in chondrogenically-induced hMSCs upon co-transduction via rAAV for up to 21 days, leading to enhanced proliferative, biosynthetic, and chondrogenic activities relative to control treatments, especially when co-applying the candidate vectors at the highest vector doses tested. Optimal co-administration of TGF-β with sox9 also advantageously reduced hypertrophic differentiation of the cells in the conditions applied here. CONCLUSION The present findings demonstrate the possibility of modifying MSCs by combined therapeutic gene transfer as potent future strategies for implantation in clinically relevant animal models of cartilage defects in vivo.
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Affiliation(s)
- Ke Tao
- Institute of Arthritis, Peking University People's Hospital, Beijing, 100044, P.R. China. .,Peking University Health Science Center, Beijing, 100191, P.R. China. .,Center of Experimental Orthopedics, Saarland University Medical Center, Kirrbergerstraße Bldg 37, Homburg/Saar, D-66421, Germany.
| | - Janina Frisch
- Center of Experimental Orthopedics, Saarland University Medical Center, Kirrbergerstraße Bldg 37, Homburg/Saar, D-66421, Germany.
| | - Ana Rey-Rico
- Center of Experimental Orthopedics, Saarland University Medical Center, Kirrbergerstraße Bldg 37, Homburg/Saar, D-66421, Germany.
| | - Jagadeesh K Venkatesan
- Center of Experimental Orthopedics, Saarland University Medical Center, Kirrbergerstraße Bldg 37, Homburg/Saar, D-66421, Germany.
| | - Gertrud Schmitt
- Center of Experimental Orthopedics, Saarland University Medical Center, Kirrbergerstraße Bldg 37, Homburg/Saar, D-66421, Germany.
| | - Henning Madry
- Center of Experimental Orthopedics, Saarland University Medical Center, Kirrbergerstraße Bldg 37, Homburg/Saar, D-66421, Germany. .,Department of Orthopaedic Surgery, Saarland University Medical Center, Kirrbergerstr. Bldg 37, Homburg/Saar, D-66421, Germany.
| | - Jianhao Lin
- Institute of Arthritis, Peking University People's Hospital, Beijing, 100044, P.R. China. .,Peking University Health Science Center, Beijing, 100191, P.R. China.
| | - Magali Cucchiarini
- Center of Experimental Orthopedics, Saarland University Medical Center, Kirrbergerstraße Bldg 37, Homburg/Saar, D-66421, Germany.
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13
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Park JS, Yi SW, Kim HJ, Park KH. Receptor-mediated gene delivery into human mesenchymal stem cells using hyaluronic acid-shielded polyethylenimine/pDNA nanogels. Carbohydr Polym 2015; 136:791-802. [PMID: 26572414 DOI: 10.1016/j.carbpol.2015.09.053] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Revised: 08/12/2015] [Accepted: 09/17/2015] [Indexed: 01/23/2023]
Abstract
Polyethylenimine (PEI) has been used as a vehicle to deliver genes to cancer cells and somatic cells. In this study, cationic polymers of PEI were shielded with anionic polymers of hyaluronic acid (HA) to safely and effectively deliver genes into human mesenchymal stem cells (hMSCs). HA interacted with CD44 in the plasma membranes of hMSCs to facilitate the internalization of HA-shielded PEI/pDNA complexes. The HA-shielded PEI/pDNA nanogels were confirmed by size changes, ζ-potential, and gel retardation assays. HA-shielded nanogels were easily internalized by hMSCs, and this was reduced by pretreatment with a specific monoclonal antibody that blocked CD44. By shielding PEI/pDNA complexes with HA, nanogels were easily internalized to hMSCs when it did not blocked by anti-CD44. These shielded nanogels were also easily internalized by HeLa cells, and this was reduced by pretreatment with an anti-CD44 monoclonal antibody. Following internalization of the SOX9 gene, chondrogenesis of hMSCs was increased, as determined by RT-PCR, real-time quantitative PCR, and histological analyses.
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Affiliation(s)
- Ji Sun Park
- Department of Biomedical Science, College of Life Science, CHA University, 6F, CHA Bio-complex, 689 Sampyeong-dong Bundang-gu, Seongnam-si 463-400, Republic of Korea
| | - Se Won Yi
- Department of Biomedical Science, College of Life Science, CHA University, 6F, CHA Bio-complex, 689 Sampyeong-dong Bundang-gu, Seongnam-si 463-400, Republic of Korea
| | - Hye Jin Kim
- Department of Biomedical Science, College of Life Science, CHA University, 6F, CHA Bio-complex, 689 Sampyeong-dong Bundang-gu, Seongnam-si 463-400, Republic of Korea
| | - Keun-Hong Park
- Department of Biomedical Science, College of Life Science, CHA University, 6F, CHA Bio-complex, 689 Sampyeong-dong Bundang-gu, Seongnam-si 463-400, Republic of Korea.
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14
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Kilcup N, Tonkopi E, Abraham RJ, Boyd D, Kehoe S. Composition-property relationships for radiopaque composite materials: pre-loaded drug-eluting beads for transarterial chemoembolization. J Biomater Appl 2015; 30:93-103. [PMID: 25690386 DOI: 10.1177/0885328215572196] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The purpose of this study was to synthesize and optimize intrinsically radiopaque composite embolic microspheres for sustained release of doxorubicin in drug-eluting bead transarterial chemoembolization. Using a design of experiments approach, 12 radiopaque composites composed of polylactic-co-glycolic acid and a radiopaque glass (ORP5) were screened over a range of compositions and examined for radiopacity (computed tomography) and density. In vitro cell viability was determined using an extract assay derived from each composition against the human hepatocellular carcinoma cell line, HepG2. Mathematical models based on a D-Optimal response surface methodology were used to determine the preferred radiopaque composite. The resulting radiopaque composite was validated and subsequently loaded with doxorubicin between 0 and 1.4% (wt% of polylactic-co-glycolic acid) to yield radiopaque composite drug-eluting beads. Thereafter, the radiopaque composite drug-eluting beads were subjected to an elution study (up to 168 h) to determine doxorubicin release profiles (UV-Vis spectroscopy) and in vitro cell viability. Radiopaque composites evaluated for screening purposes had densities between 1.28 and 1.67 g.cm(-3), radiopacity ranged between 211 and 1450HU and cell viabilities between 91 and 106% were observed. The optimized radiopaque composite comprised 23 wt% polylactic-co-glycolic acid and 60 wt% ORP5 with a corresponding density of 1.63 ± 0.001 g.cm(-3), radiopacity at 1930 ± 44HU and cell viability of 89 ± 7.6%. Radiopaque composite drug-eluting beads provided sustained doxorubicin release over 168 h. In conclusion, the mathematical models allowed for the identification and synthesis of a unique radiopaque composite. The optimized radiopaque composite had similar density and cell viability to commercially available embolic microspheres. It was possible to preload doxorubicin into radiopaque composite drug-eluting beads, such that sustained release was possible under simulated physiological conditions.
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Affiliation(s)
- Nancy Kilcup
- School of Biomedical Engineering, Dalhousie University, Halifax, NS, Canada
| | - Elena Tonkopi
- Department of Diagnostic Imaging and Interventional Radiology, QE II Health Sciences Centre, Halifax, NS, Canada
| | - Robert J Abraham
- School of Biomedical Engineering, Dalhousie University, Halifax, NS, Canada Department of Diagnostic Imaging and Interventional Radiology, QE II Health Sciences Centre, Halifax, NS, Canada ABK Biomedical Inc., Halifax, NS, Canada
| | - Daniel Boyd
- School of Biomedical Engineering, Dalhousie University, Halifax, NS, Canada Department of Diagnostic Imaging and Interventional Radiology, QE II Health Sciences Centre, Halifax, NS, Canada Department of Applied Oral Sciences, Dalhousie University, Halifax, NS, Canada ABK Biomedical Inc., Halifax, NS, Canada
| | - Sharon Kehoe
- Department of Applied Oral Sciences, Dalhousie University, Halifax, NS, Canada ABK Biomedical Inc., Halifax, NS, Canada
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15
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Wang Z, Zhang Y, Zhu J, Dong S, Jiang T, Zhou Y, Zhang X. In vitro investigation of a tissue-engineered cell-tendon complex mimicking the transitional architecture at the ligament-bone interface. J Biomater Appl 2014; 29:1180-92. [PMID: 25311754 DOI: 10.1177/0885328214555168] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Restoration of the transitional ligament-bone interface is critical for graft-bone integration. We postulated that an allogenic scaffold mimicking the fibrogenic, chondrogenic, and osteogenic transition gradients could physiologically promote ligament-bone incorporation. The aim of this study was to construct and characterize a composite tendon scaffold with a continuous and heterogeneous transition region mimicking a native ligament insertion site. Genetically modified heterogeneous cell populations were seeded within specific regions of decellularized rabbit Achilles tendons to fabricate a stratified scaffold containing three biofunctional regions supporting fibrogenesis, chondrogenesis, and osteogenesis. The observed morphology, architecture, cytocompatibility, and biomechanics of the scaffolds demonstrated their improved bio-physico-chemical properties. The formation of the transitional regions was augmented via enhanced delivery of two transcription factors, sex determining region Y-box 9 and runt-related transcription factor 2, which also triggered early up-regulated expression of cartilage- and bone-relevant markers, according to quantitative PCR and immunoblot analyses. Gradient tissue-specific matrix formation was also confirmed within the predesignated regions via histological staining and immunofluorescence assays. These results suggest that a transitional interface could be replicated on an engineered tendon through stratified tissue integration. The scaffold offers the advantages of a multitissue transition involving controlled cellular interactions and matrix heterogeneity, which can be applied for the regeneration of the ligament-bone interface.
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Affiliation(s)
- Zhibing Wang
- Department of Orthopedics, Xinqiao Hospital, Third Military Medical University, Xinqiao Street, Chongqing, PR China
| | - Yuan Zhang
- Department of Orthopedics, Xinqiao Hospital, Third Military Medical University, Xinqiao Street, Chongqing, PR China
| | - Jie Zhu
- Department of Neurology, Daping Hospital, Third Military Medical University, Changjiang Street, Chongqing, PR China
| | - Shiwu Dong
- National & Regional United Engineering Laboratory of Tissue Engineering, Department of Biomedical Materials Science, Third Military Medical University, Gaotanyan Street, Chongqing, PR China
| | - Tao Jiang
- Department of Orthopedics, Xinqiao Hospital, Third Military Medical University, Xinqiao Street, Chongqing, PR China
| | - Yue Zhou
- Department of Orthopedics, Xinqiao Hospital, Third Military Medical University, Xinqiao Street, Chongqing, PR China
| | - Xia Zhang
- Department of Orthopedics, Xinqiao Hospital, Third Military Medical University, Xinqiao Street, Chongqing, PR China
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Chen C, Xie J, Deng L, Yang L. Substrate stiffness together with soluble factors affects chondrocyte mechanoresponses. ACS APPLIED MATERIALS & INTERFACES 2014; 6:16106-16116. [PMID: 25162787 DOI: 10.1021/am504135b] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Tissue cells sense and respond to differences in substrate stiffness. In chondrocytes, it has been shown that substrate stiffness regulates cell spreading, proliferation, chondrogenic gene expression, and TGF-β signaling. But how the substrate stiffness together with soluble factors influences the mechanical properties of chondrocyte is still unclear. In this study, we cultured goat articular chondrocytes on polyacrylamide gels of 1, 11, and 90 kPa (Young's modulus), and measured cellular stiffness, traction force, and response to stretch in the presence of TGF-β1 or IL-1β. We found that TGF-β1 increased cellular stiffness and traction force and enhanced the response to stretch, while IL-1β increased cellular stiffness, but lowered traction force and weakened the response to stretch. Importantly, the effects of TGF-β1 on chondrocyte mechanics were potent in cells cultured on 90 kPa substrates, while the effects of IL-1β were potent on 1 kPa substrates. We also demonstrated that such changes of chondrocyte mechanoresponse were due to not only the changes of actin cytoskeleton and focal adhesion, but also the alteration of chondrocyte extracellular matrix synthesis. Taken together, these results provide insights into how chondrocytes integrate physical and biochemical cues to regulate their biomechanical behavior, and thus have implications for the design of optimized mechanical and biochemical microenvironments for engineered cartilage.
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Affiliation(s)
- Cheng Chen
- Center for Joint Surgery, Southwest Hospital, Third Military Medical University , Chongqing 400038, China
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17
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Three-dimensional biomaterial degradation — Material choice, design and extrinsic factor considerations. Biotechnol Adv 2014; 32:984-99. [DOI: 10.1016/j.biotechadv.2014.04.014] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2014] [Revised: 04/18/2014] [Accepted: 04/30/2014] [Indexed: 11/20/2022]
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18
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Jeon SY, Park JS, Yang HN, Lim HJ, Yi SW, Park H, Park KH. Co-delivery of Cbfa-1-targeting siRNA and SOX9 protein using PLGA nanoparticles to induce chondrogenesis of human mesenchymal stem cells. Biomaterials 2014; 35:8236-48. [PMID: 24965885 DOI: 10.1016/j.biomaterials.2014.05.092] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2014] [Accepted: 05/29/2014] [Indexed: 01/16/2023]
Abstract
During stem cell differentiation, various cellular responses occur that are mediated by transcription factors and proteins. This study evaluated the abilities of SOX9, a crucial protein during the early stage of chondrogenesis, and siRNA targeting Cbfa-1, a transcription factor that promotes osteogenesis, to stimulate chondrogenesis. Non-toxic poly-(d,l-lactide-co-glycolide) (PLGA) nanoparticles (NPs) were coated with Cbfa-1-targeting siRNA and loaded with SOX9 protein. Coomassie blue staining and circular dichroism revealed that the loaded SOX9 protein maintained its stability and bioactivity. These NPs easily entered human mesenchymal stem cells (hMSCs) in vitro and caused them to differentiate into chondrocytes. Markers that are typically expressed in mature chondrocytes were examined. These markers were highly expressed at the mRNA and protein levels in hMSCs treated with PLGA NPs coated with Cbfa-1-targeting siRNA and loaded with SOX9 protein. By contrast, these cells did not express osteogenesis-related markers. hMSCs were injected into mice following internalization of PLGA NPs coated with Cbfa-1-targeting siRNA and loaded with SOX9 protein. When the injection site was excised, markers of chondrogenesis were found to be highly expressed at the mRNA and protein levels, similar to the in vitro results. When hMSCs internalized these NPs and were then cultured in vitro or injected into mice, chondrogenesis-related extracellular matrix components were highly expressed.
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Affiliation(s)
- Su Yeon Jeon
- Department of Biomedical Science, College of Life Science, CHA University, 3F, Yatap Ace-Core Building, 502 Yatap-Dong, Bundang-Gu, Seongnam-Si, Gyeonggi-Do 135-081, Republic of Korea
| | - Ji Sun Park
- Department of Biomedical Science, College of Life Science, CHA University, 3F, Yatap Ace-Core Building, 502 Yatap-Dong, Bundang-Gu, Seongnam-Si, Gyeonggi-Do 135-081, Republic of Korea
| | - Han Na Yang
- Department of Biomedical Science, College of Life Science, CHA University, 3F, Yatap Ace-Core Building, 502 Yatap-Dong, Bundang-Gu, Seongnam-Si, Gyeonggi-Do 135-081, Republic of Korea
| | - Hye Jin Lim
- Department of Biomedical Science, College of Life Science, CHA University, 3F, Yatap Ace-Core Building, 502 Yatap-Dong, Bundang-Gu, Seongnam-Si, Gyeonggi-Do 135-081, Republic of Korea
| | - Se Won Yi
- Department of Biomedical Science, College of Life Science, CHA University, 3F, Yatap Ace-Core Building, 502 Yatap-Dong, Bundang-Gu, Seongnam-Si, Gyeonggi-Do 135-081, Republic of Korea
| | - Hansoo Park
- School of Integrative Engineering, Chung-Ang Univeristy, 221 Heukseok-dong, Dongjak-gu, Seoul 156-756, Republic of Korea
| | - Keun-Hong Park
- Department of Biomedical Science, College of Life Science, CHA University, 3F, Yatap Ace-Core Building, 502 Yatap-Dong, Bundang-Gu, Seongnam-Si, Gyeonggi-Do 135-081, Republic of Korea.
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19
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Huang CL, Lee WL, Loo JS. Drug-eluting scaffolds for bone and cartilage regeneration. Drug Discov Today 2014; 19:714-24. [DOI: 10.1016/j.drudis.2013.11.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Revised: 10/16/2013] [Accepted: 11/06/2013] [Indexed: 12/19/2022]
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20
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Guo X, Chu X, Li W, Pan Q, You H. Chondrogenic effect of precartilaginous stem cells following NLS-TAT cell penetrating peptide-assisted transfection of eukaryotic hTGFβ3. J Cell Biochem 2014; 114:2588-94. [PMID: 23757322 DOI: 10.1002/jcb.24606] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Accepted: 05/31/2013] [Indexed: 12/25/2022]
Abstract
Cell penetrating peptides (CPPs) are a series of promising carriers for delivering exogenous DNA to living cells. Among them, the combination of the human immunodeficiency virus TAT protein (TAT) with the SV40 large T protein nuclear localization signal (NLS) to form NLS-TAT performs well. In the present study, we took advantage of this new carrier to deliver transforming growth factor-beta 3 (TGFβ3) genes. TGFβ3 was expressed by the pEGFP-N1 vector following transfection of rat precartilaginous stem cells (PSCs), which promoted hTGFβ3 protein self-expression. At 24, 48, 72, and 120 h after transfection, the expression levels of hTGFβ3 were found to be elevated as compared with the control. The expression of hTGFβ3 was found to mediate the chondrogenic effect of PSCs. Thus, we determined the expression of the chondrogenesis-related genes type II collagen, Sox 9, and aggrecan in PSCs at 24, 48, 72, and 120 h after transfection. We found that their transcription and translation was augmented, which indicated a trend of active chondrogenesis in the PSCs. Our results demonstrated that NLS-TAT had the ability to deliver exogenous DNA into rat PSCs and could be actively expressed. This process successfully promoted PSC chondrogenesis. Additionally, PSC, may represent a new type of stem cells, and thus show great potential in regenerative repair following cartilage injury.
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Affiliation(s)
- Xin Guo
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
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21
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Chen JL, Duan L, Zhu W, Xiong J, Wang D. Extracellular matrix production in vitro in cartilage tissue engineering. J Transl Med 2014; 12:88. [PMID: 24708713 PMCID: PMC4233628 DOI: 10.1186/1479-5876-12-88] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2013] [Accepted: 03/31/2014] [Indexed: 11/18/2022] Open
Abstract
Cartilage tissue engineering is arising as a technique for the repair of cartilage lesions in clinical applications. However, fibrocartilage formation weakened the mechanical functions of the articular, which compromises the clinical outcomes. Due to the low proliferation ability, dedifferentiation property and low production of cartilage-specific extracellular matrix (ECM) of the chondrocytes, the cartilage synthesis in vitro has been one of the major limitations for obtaining high-quality engineered cartilage constructs. This review discusses cells, biomaterial scaffolds and stimulating factors that can facilitate the cartilage-specific ECM production and accumulation in the in vitro culture system. Special emphasis has been put on the factors that affect the production of ECM macromolecules such as collagen type II and proteoglycans in the review, aiming at providing new strategies to improve the quality of tissue-engineered cartilage.
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Affiliation(s)
| | | | | | | | - Daping Wang
- Shenzhen Key Laboratory of Tissue Engineering, Shenzhen Second People's Hospital (The First Affiliated Hospital of Shenzhen University), Shenzhen 518035, Guangdong Province, China.
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22
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Shim G, Im S, Lee S, Park JY, Kim J, Jin H, Lee S, Im I, Kim DD, Kim SW, Lee TJ, Eom JS, Yi TG, Song SU, Byun Y, Oh YK. Enhanced survival of transplanted human adipose-derived stem cells by co-delivery with liposomal apoptosome inhibitor in fibrin gel matrix. Eur J Pharm Biopharm 2013; 85:673-81. [PMID: 23747743 DOI: 10.1016/j.ejpb.2013.05.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2012] [Revised: 05/10/2013] [Accepted: 05/22/2013] [Indexed: 12/18/2022]
Abstract
To improve the survival of transplanted human adipose-derived stem cells (ADSCs), a liposome preparation containing the apoptosome inhibitor, NS3694, was formulated and co-delivered with ADSCs in fibrin gel scaffolds. Liposomes provided enhanced effect on ADSC proliferation in vitro as compared to free drug. Exposure of ADSCs to liposomal NS3694 for 7 days did not affect the surface marker expression profile. NS3694 encapsulated in negatively charged liposomes composed of phosphatidylcholine, phosphatidylglycerol, and cholesterol was evaluated in vivo following subcutaneous transplantation in mice. Survival of ADSCs co-delivered with liposomal NS3694 was significantly higher than that of untreated ADSCs or ADSCs treated with free NS3694 or empty liposomes. An immunohistochemical analysis revealed a higher number of human nucleus-positive cells after treatment with liposomal NS3694 than following treatment with free NS3694. Similarly, liposomal NS3694 significantly enhanced survival of transplanted ADSCs in rabbits compared to other treatments. Taken together, our results indicate the potential of liposomal NS3694 co-delivered with ADSCs using fibrin gel systems as an in vivo-survival enhancer.
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Affiliation(s)
- Gayong Shim
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Republic of Korea
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23
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Keeney M, Mathur M, Cheng E, Tong X, Yang F. Effects of polymer end-group chemistry and order of deposition on controlled protein delivery from layer-by-layer assembly. Biomacromolecules 2013; 14:794-800. [PMID: 23360295 DOI: 10.1021/bm3018559] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Layer-by-layer (LBL) assembly is an attractive platform for controlled release of biologics given its mild fabrication process and versatility in coating substrates of any shape. Proteins can be incorporated into LBL coatings by sequentially depositing oppositely charged polyelectrolytes, which self-assemble into nanoscale films on medical devices or tissue engineering scaffolds. However, previously reported LBL platforms often require the use of a few hundred layers to avoid burst release, which hinders their broad translation due to the lengthy fabrication process, cost, and batch-to-batch variability. Here we report a biodegradable LBL platform composed of only 10 layers with tunable protein release kinetics, which is an order of magnitude less than previously reported LBL platforms. We performed a combinatorial study to examine the effects of polymer chemistry and order of deposition of poly(β-amino) esters on protein release kinetics under 81 LBL assembly conditions. Using the optimal "polyelectrolyte couples" for constructing the LBL film, basic fibroblast growth factor (bFGF) was released gradually over 14 days with retained biological activity to stimulate cell proliferation. The method reported herein is applicable for coating various substrates including metals, polymers, and ceramics and may be used for a broad range of biomedical and tissue engineering applications.
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Affiliation(s)
- Michael Keeney
- Departments of Orthopaedic Surgery, Stanford University, Stanford, CA 94305, USA
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