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Rana MM, De la Hoz Siegler H. Evolution of Hybrid Hydrogels: Next-Generation Biomaterials for Drug Delivery and Tissue Engineering. Gels 2024; 10:216. [PMID: 38667635 PMCID: PMC11049329 DOI: 10.3390/gels10040216] [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: 02/28/2024] [Revised: 03/14/2024] [Accepted: 03/19/2024] [Indexed: 04/28/2024] Open
Abstract
Hydrogels, being hydrophilic polymer networks capable of absorbing and retaining aqueous fluids, hold significant promise in biomedical applications owing to their high water content, permeability, and structural similarity to the extracellular matrix. Recent chemical advancements have bolstered their versatility, facilitating the integration of the molecules guiding cellular activities and enabling their controlled activation under time constraints. However, conventional synthetic hydrogels suffer from inherent weaknesses such as heterogeneity and network imperfections, which adversely affect their mechanical properties, diffusion rates, and biological activity. In response to these challenges, hybrid hydrogels have emerged, aiming to enhance their strength, drug release efficiency, and therapeutic effectiveness. These hybrid hydrogels, featuring improved formulations, are tailored for controlled drug release and tissue regeneration across both soft and hard tissues. The scientific community has increasingly recognized the versatile characteristics of hybrid hydrogels, particularly in the biomedical sector. This comprehensive review delves into recent advancements in hybrid hydrogel systems, covering the diverse types, modification strategies, and the integration of nano/microstructures. The discussion includes innovative fabrication techniques such as click reactions, 3D printing, and photopatterning alongside the elucidation of the release mechanisms of bioactive molecules. By addressing challenges, the review underscores diverse biomedical applications and envisages a promising future for hybrid hydrogels across various domains in the biomedical field.
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Affiliation(s)
- Md Mohosin Rana
- Department of Pathology and Laboratory Medicine, Faculty of Medicine, University of British Columbia, Vancouver, BC V6T 1Z7, Canada;
- Centre for Blood Research, Faculty of Medicine, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - Hector De la Hoz Siegler
- Department of Chemical and Petroleum Engineering, Schulich School of Engineering, University of Calgary, Calgary, AB T2N 1N4, Canada
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2
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Ghandforoushan P, Alehosseini M, Golafshan N, Castilho M, Dolatshahi-Pirouz A, Hanaee J, Davaran S, Orive G. Injectable hydrogels for cartilage and bone tissue regeneration: A review. Int J Biol Macromol 2023; 246:125674. [PMID: 37406921 DOI: 10.1016/j.ijbiomac.2023.125674] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 06/29/2023] [Accepted: 07/01/2023] [Indexed: 07/07/2023]
Abstract
Annually, millions of patients suffer from irreversible injury owing to the loss or failure of an organ or tissue caused by accident, aging, or disease. The combination of injectable hydrogels and the science of stem cells have emerged to address this persistent issue in society by generating minimally invasive treatments to augment tissue function. Hydrogels are composed of a cross-linked network of polymers that exhibit a high-water retention capacity, thereby mimicking the wet environment of native cells. Due to their inherent mechanical softness, hydrogels can be used as needle-injectable stem cell carrier materials to mend tissue defects. Hydrogels are made of different natural or synthetic polymers, displaying a broad portfolio of eligible properties, which include biocompatibility, low cytotoxicity, shear-thinning properties as well as tunable biological and physicochemical properties. Presently, novel ongoing developments and native-like hydrogels are increasingly being used broadly to improve the quality of life of those with disabling tissue-related diseases. The present review outlines various future and in-vitro applications of injectable hydrogel-based biomaterials, focusing on the newest ongoing developments of in-situ forming injectable hydrogels for bone and cartilage tissue engineering purposes.
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Affiliation(s)
- Parisa Ghandforoushan
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tabriz University of Medical Science, Tabriz, Iran; Clinical Research Development, Unit of Tabriz Valiasr Hospital, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Morteza Alehosseini
- Department of Health Technology, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | - Nasim Golafshan
- Department of Orthopedics, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Miguel Castilho
- Department of Orthopedics, University Medical Center Utrecht, Utrecht, the Netherlands; Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands
| | | | - Jalal Hanaee
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tabriz University of Medical Science, Tabriz, Iran
| | - Soodabeh Davaran
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tabriz University of Medical Science, Tabriz, Iran
| | - Gorka Orive
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country UPV/EHU Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain; Networking Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Vitoria-Gasteiz, Spain; Bioaraba, NanoBioCel Research Group, Vitoria-Gasteiz, Spain; University Institute for Regenerative Medicine and Oral Implantology - UIRMI (UPV/EHU-Fundación Eduardo Anitua), Vitoria, Spain; University of the Basque Country, Spain.
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Pardeshi S, Damiri F, Zehravi M, Joshi R, Kapare H, Prajapati MK, Munot N, Berrada M, Giram PS, Rojekar S, Ali F, Rahman MH, Barai HR. Functional Thermoresponsive Hydrogel Molecule to Material Design for Biomedical Applications. Polymers (Basel) 2022; 14:polym14153126. [PMID: 35956641 PMCID: PMC9371082 DOI: 10.3390/polym14153126] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 06/18/2022] [Accepted: 07/22/2022] [Indexed: 02/04/2023] Open
Abstract
Temperature-induced, rapid changes in the viscosity and reproducible 3-D structure formation makes thermos-sensitive hydrogels an ideal delivery system to act as a cell scaffold or a drug reservoir. Moreover, the hydrogels’ minimum invasiveness, high biocompatibility, and facile elimination from the body have gathered a lot of attention from researchers. This review article attempts to present a complete picture of the exhaustive arena, including the synthesis, mechanism, and biomedical applications of thermosensitive hydrogels. A special section on intellectual property and marketed products tries to shed some light on the commercial potential of thermosensitive hydrogels.
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Affiliation(s)
- Sagar Pardeshi
- Department of Pharmaceutical Technology, University Institute of Chemical Technology, KBC North Maharashtra University, Jalgaon 425001, Maharashtra, India;
| | - Fouad Damiri
- Laboratory of Biomolecules and Organic Synthesis (BIOSYNTHO), Department of Chemistry, Faculty of Sciences Ben M’sick, University Hassan II of Casablanca, Casablanca 20000, Morocco; (F.D.); (M.B.)
| | - Mehrukh Zehravi
- Department of Clinical Pharmacy Girls Section, Prince Sattam Bin Abdul Aziz University Alkharj, Al-Kharj 11942, Saudi Arabia;
| | - Rohit Joshi
- Precision Nanosystems Inc., Vancouver, BC V6P 6T7, Canada;
| | - Harshad Kapare
- Department of Pharmaceutics, Dr. D.Y. Patil Institute of Pharmaceutical Sciences and Research, Pune 41118, Maharashtra, India;
| | - Mahendra Kumar Prajapati
- Department of Pharmaceutics, School of Pharmacy and Technology Management, SVKM’s NMIMS, Shirpur 425405, Maharashtra, India;
| | - Neha Munot
- Department of Pharmaceutics, School of Pharmacy, Vishwakarma University, Pune 411048, Maharashtra, India;
| | - Mohammed Berrada
- Laboratory of Biomolecules and Organic Synthesis (BIOSYNTHO), Department of Chemistry, Faculty of Sciences Ben M’sick, University Hassan II of Casablanca, Casablanca 20000, Morocco; (F.D.); (M.B.)
| | - Prabhanjan S. Giram
- Department of Pharmaceutics, Dr. D.Y. Patil Institute of Pharmaceutical Sciences and Research, Pune 41118, Maharashtra, India;
- Department of Pharmaceutical Sciences, University at Buffalo, The State University of New York, Buffalo, NY 14214, USA
- Correspondence: (P.S.G.); (S.R.); (H.R.B.)
| | - Satish Rojekar
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Mumbai 400019, Maharashtra, India
- Departments of Medicine and Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Correspondence: (P.S.G.); (S.R.); (H.R.B.)
| | - Faraat Ali
- Laboratory Services, Department of Licensing and Enforcement, Botswana Medicines Regulatory Authority (BoMRA), Gaborone 999106, Botswana;
| | - Md. Habibur Rahman
- Department of Global Medical Science, Wonju College of Medicine, Yonsei University, Wonju 26426, Korea;
| | - Hasi Rani Barai
- School of Mechanical and IT Engineering, Yeungnam University, Gyeongsan 38541, Korea
- Correspondence: (P.S.G.); (S.R.); (H.R.B.)
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Ghandforoushan P, Hanaee J, Aghazadeh Z, Samiei M, Navali AM, Khatibi A, Davaran S. Enhancing the function of PLGA-collagen scaffold by incorporating TGF-β1-loaded PLGA-PEG-PLGA nanoparticles for cartilage tissue engineering using human dental pulp stem cells. Drug Deliv Transl Res 2022; 12:2960-2978. [PMID: 35650332 DOI: 10.1007/s13346-022-01161-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/03/2022] [Indexed: 02/07/2023]
Abstract
Since cartilage has a limited capacity for self-regeneration, treating cartilage degenerative disorders is a long-standing difficulty in orthopedic medicine. Researchers have scrutinized cartilage tissue regeneration to handle the deficiency of cartilage restoration capacity. This investigation proposed to compose an innovative nanocomposite biomaterial that enhances growth factor delivery to the injured cartilage site. Here, we describe the design and development of the biocompatible poly(lactide-co-glycolide) acid-collagen/poly(lactide-co-glycolide)-poly(ethylene glycol)-poly(lactide-co-glycolide) (PLGA-collagen/PLGA-PEG-PLGA) nanocomposite hydrogel containing transforming growth factor-β1 (TGF-β1). PLGA-PEG-PLGA nanoparticles were employed as a delivery system embedding TGF-β1 as an articular cartilage repair therapeutic agent. This study evaluates various physicochemical aspects of fabricated scaffolds by 1HNMR, FT-IR, SEM, BET, and DLS methods. The physicochemical features of the developed scaffolds, including porosity, density, degradation, swelling ratio, mechanical properties, morphologies, BET, ELISA, and cytotoxicity were assessed. The cell viability was investigated with the MTT test. Chondrogenic differentiation was assessed via Alcian blue staining and RT-PCR. In real-time PCR testing, the expression of Sox-9, collagen type II, and aggrecan genes was monitored. According to the results, human dental pulp stem cells (hDPSCs) exhibited high adhesion, proliferation, and differentiation on PLGA-collagen/PLGA-PEG-PLGA-TGFβ1 nanocomposite scaffolds compared to the control groups. SEM images displayed suitable cell adhesion and distribution of hDPSCs throughout the scaffolds. RT-PCR assay data displayed that TGF-β1 loaded PLGA-PEG-PLGA nanoparticles puts forward chondroblast differentiation in hDPSCs through the expression of chondrogenic genes. The findings revealed that PLGA-collagen/PLGA-PEG-PLGA-TGF-β1 nanocomposite hydrogel can be utilized as a supportive platform to support hDPSCs differentiation by implementing specific physio-chemical features.
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Affiliation(s)
- Parisa Ghandforoushan
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Medicinal Chemistry, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Jalal Hanaee
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.,Pharmaceutical Analysis Research Center, Tabriz University of Medicinal Science, Tabriz, Iran
| | - Zahra Aghazadeh
- Stem Cell Research Center, Oral Medicine Department, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Samiei
- Department of Endodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Ali Khatibi
- Department of Biotechnology, Alzahra University, Tehran, Iran
| | - Soodabeh Davaran
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran. .,Department of Medicinal Chemistry, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran. .,Applied Drug Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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He W, Reaume M, Hennenfent M, Lee BP, Rajachar R. Biomimetic hydrogels with spatial- and temporal-controlled chemical cues for tissue engineering. Biomater Sci 2020; 8:3248-3269. [PMID: 32490441 PMCID: PMC7323904 DOI: 10.1039/d0bm00263a] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Biomimetic hydrogels have emerged as the most useful tissue engineering scaffold materials. Their versatile chemistry can recapitulate multiple physical and chemical features to integrate cells, scaffolds, and signaling molecules for tissue regeneration. Due to their highly hydrophilic nature hydrogels can recreate nutrient-rich aqueous environments for cells. Soluble regulatory molecules can be incorporated to guide cell proliferation and differentiation. Importantly, the controlled dynamic parameters and spatial distribution of chemical cues in hydrogel scaffolds are critical for cell-cell communication, cell-scaffold interaction, and morphogenesis. Herein, we review biomimetic hydrogels that provide cells with spatiotemporally controlled chemical cues as tissue engineering scaffolds. Specifically, hydrogels with temporally controlled growth factor-release abilities, spatially controlled conjugated bioactive molecules/motifs, and targeting delivery and reload properties for tissue engineering applications are discussed in detail. Examples of hydrogels that possess clinically favorable properties, such as injectability, self-healing ability, stimulus-responsiveness, and pro-remodeling features, are also covered.
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Affiliation(s)
- Weilue He
- Department of Biomedical Engineering, Michigan Technological University, Houghton, MI 49931, USA
- FM Wound Care, LLC, Hancock, MI 49930, USA
| | - Max Reaume
- Department of Biomedical Engineering, Michigan Technological University, Houghton, MI 49931, USA
| | - Maureen Hennenfent
- Department of Civil and Environmental Engineering, Michigan Technological University, Houghton, MI 49931, USA
| | - Bruce P. Lee
- Department of Biomedical Engineering, Michigan Technological University, Houghton, MI 49931, USA
| | - Rupak Rajachar
- Department of Biomedical Engineering, Michigan Technological University, Houghton, MI 49931, USA
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Motor and sensitive recovery after injection of a physically cross-linked PNIPAAm-g-PEG hydrogel in rat hemisectioned spinal cord. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 107:110354. [DOI: 10.1016/j.msec.2019.110354] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Revised: 10/02/2019] [Accepted: 10/20/2019] [Indexed: 12/28/2022]
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7
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Zhang Y, Yu J, Ren K, Zuo J, Ding J, Chen X. Thermosensitive Hydrogels as Scaffolds for Cartilage Tissue Engineering. Biomacromolecules 2019; 20:1478-1492. [PMID: 30843390 DOI: 10.1021/acs.biomac.9b00043] [Citation(s) in RCA: 167] [Impact Index Per Article: 33.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yanbo Zhang
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, 126 Xiantai Street, Changchun 130033, P. R. China
| | - Jiakuo Yu
- Knee Surgery Department of the Institute of Sports Medicine, Peking University Third Hospital, 49 Huayuanbei Road, Beijing 100191, P. R. China
| | - Kaixuan Ren
- Mork Family Department of Chemical Engineering & Materials Science, University of Southern California, 925 West 34th Street, Los Angeles, California 90089, United States of America
| | - Jianlin Zuo
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, 126 Xiantai Street, Changchun 130033, P. R. China
| | - Jianxun Ding
- Key Laboratory
of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
- Jilin Biomedical Polymers Engineering Laboratory, 5625 Renmin Street, Changchun 130022, P. R. China
| | - Xuesi Chen
- Key Laboratory
of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
- Jilin Biomedical Polymers Engineering Laboratory, 5625 Renmin Street, Changchun 130022, P. R. China
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8
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Kollarigowda RH, Mathews AS, Abraham S. Super Mechanical Stimuli Responsive Hydrogel: Dynamic Cues for Cell Applications. ACS APPLIED BIO MATERIALS 2018; 2:277-283. [DOI: 10.1021/acsabm.8b00595] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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9
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Jeznach O, Kołbuk D, Sajkiewicz P. Injectable hydrogels and nanocomposite hydrogels for cartilage regeneration. J Biomed Mater Res A 2018; 106:2762-2776. [DOI: 10.1002/jbm.a.36449] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 03/15/2018] [Accepted: 04/30/2018] [Indexed: 12/28/2022]
Affiliation(s)
- Oliwia Jeznach
- Institute of Fundamental Technological Research, Polish Academy of Sciences; Pawinskiego 5BWarsaw, 02‐106 Poland
| | - Dorota Kołbuk
- Institute of Fundamental Technological Research, Polish Academy of Sciences; Pawinskiego 5BWarsaw, 02‐106 Poland
| | - Pawe Sajkiewicz
- Institute of Fundamental Technological Research, Polish Academy of Sciences; Pawinskiego 5BWarsaw, 02‐106 Poland
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10
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Kim M, Garrity ST, Steinberg DR, Dodge GR, Mauck RL. Role of dexamethasone in the long-term functional maturation of MSC-laden hyaluronic acid hydrogels for cartilage tissue engineering. J Orthop Res 2018; 36:1717-1727. [PMID: 29178462 PMCID: PMC6948196 DOI: 10.1002/jor.23815] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 11/23/2017] [Indexed: 02/04/2023]
Abstract
The purpose of study was to investigate the maturation of mesenchymal stem cells (MSC) laden in HA constructs with various combinations of chemically defined medium (CM) components and determine the impact of dexamethasone and serum on construct properties. Constructs were cultured in CM with the addition or withdrawal of media components or were transferred to serum containing media that partially represents an in vivo-like condition where pro-inflammatory signals are present. Constructs cultured in CM+ (CM with TGF-β3) and DEX- (CM+ without dexamethasone) conditions produced robust matrix, while those in ITS/BSA/LA- (CM+ without ITS/BSA/LA) and Serum+ (10% FBS with TGF-β3) produced little matrix. While construct properties in DEX- were greater than those in CM+ at 4 weeks, properties in CM+ and DEX- reversed by 8 weeks. While construct properties in DEX- were greater than those in CM+ at 4 weeks, the continued absence or removal of dexamethasone resulted in marked GAG loss by 8 weeks. Conversely, the continued presence or new addition of dexamethasone at 4 weeks further improved or maintained construct properties through 8 weeks. Finally, when constructs were converted to Serum (in the continued presence of TGF-β3 with or without dexamethasone) after pre-culture in CM+ for 4 weeks, GAG loss was attenuated with addition of dexamethasone. Interestingly, however, collagen content and type was not impacted. In conclusion, dexamethasone influences the functional maturation of MSC-laden HA constructs, and may help to maintain properties during long-term culture or with in vivo translation by repressing pro-inflammatory signals. © 2017 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 36:1717-1727, 2018.
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Affiliation(s)
- Minwook Kim
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104,Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104,Translational Musculoskeletal Research Center (TMRC), Corporal Michael J. Crescenz Veterans Affairs Medical Center, Philadelphia, PA 19104, U.S.A
| | - Sean T. Garrity
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - David R. Steinberg
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104,Translational Musculoskeletal Research Center (TMRC), Corporal Michael J. Crescenz Veterans Affairs Medical Center, Philadelphia, PA 19104, U.S.A
| | - George R. Dodge
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104,Translational Musculoskeletal Research Center (TMRC), Corporal Michael J. Crescenz Veterans Affairs Medical Center, Philadelphia, PA 19104, U.S.A
| | - Robert L. Mauck
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104,Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104,Translational Musculoskeletal Research Center (TMRC), Corporal Michael J. Crescenz Veterans Affairs Medical Center, Philadelphia, PA 19104, U.S.A,Address for Correspondence: Robert L. Mauck, Ph.D., Mary Black Ralston Professor of Orthopaedic Surgery, Professor of Bioengineering, McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, 36 Street and Hamilton Walk, Philadelphia, PA 19104, Phone: (215) 898-3294, Fax: (215) 573-2133,
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Chatterjee S, Hui PCL, Kan CW. Thermoresponsive Hydrogels and Their Biomedical Applications: Special Insight into Their Applications in Textile Based Transdermal Therapy. Polymers (Basel) 2018; 10:E480. [PMID: 30966514 PMCID: PMC6415431 DOI: 10.3390/polym10050480] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 04/21/2018] [Accepted: 04/25/2018] [Indexed: 01/19/2023] Open
Abstract
Various natural and synthetic polymers are capable of showing thermoresponsive properties and their hydrogels are finding a wide range of biomedical applications including drug delivery, tissue engineering and wound healing. Thermoresponsive hydrogels use temperature as external stimulus to show sol-gel transition and most of the thermoresponsive polymers can form hydrogels around body temperature. The availability of natural thermoresponsive polymers and multiple preparation methods of synthetic polymers, simple preparation method and high functionality of thermoresponsive hydrogels offer many advantages for developing drug delivery systems based on thermoresponsive hydrogels. In textile field applications of thermoresponsive hydrogels, textile based transdermal therapy is currently being applied using drug loaded thermoresponsive hydrogels. The current review focuses on the preparation, physico-chemical properties and various biomedical applications of thermoresponsive hydrogels based on natural and synthetic polymers and especially, their applications in developing functionalized textiles for transdermal therapies. Finally, future prospects of dual responsive (pH/temperature) hydrogels made by these polymers for textile based transdermal treatments are mentioned in this review.
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Affiliation(s)
- Sudipta Chatterjee
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China.
| | - Patrick Chi-Leung Hui
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China.
| | - Chi-Wai Kan
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China.
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12
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Thermoresponsive Hydrogels and Their Biomedical Applications: Special Insight into Their Applications in Textile Based Transdermal Therapy. Polymers (Basel) 2018. [PMID: 30966514 DOI: 10.3390/polym10050480]] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Various natural and synthetic polymers are capable of showing thermoresponsive properties and their hydrogels are finding a wide range of biomedical applications including drug delivery, tissue engineering and wound healing. Thermoresponsive hydrogels use temperature as external stimulus to show sol-gel transition and most of the thermoresponsive polymers can form hydrogels around body temperature. The availability of natural thermoresponsive polymers and multiple preparation methods of synthetic polymers, simple preparation method and high functionality of thermoresponsive hydrogels offer many advantages for developing drug delivery systems based on thermoresponsive hydrogels. In textile field applications of thermoresponsive hydrogels, textile based transdermal therapy is currently being applied using drug loaded thermoresponsive hydrogels. The current review focuses on the preparation, physico-chemical properties and various biomedical applications of thermoresponsive hydrogels based on natural and synthetic polymers and especially, their applications in developing functionalized textiles for transdermal therapies. Finally, future prospects of dual responsive (pH/temperature) hydrogels made by these polymers for textile based transdermal treatments are mentioned in this review.
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13
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Gupta MK, Martin JR, Dollinger BR, Hattaway ME, Duvall CL. Thermogelling, ABC Triblock Copolymer Platform for Resorbable Hydrogels with Tunable, Degradation-Mediated Drug Release. ADVANCED FUNCTIONAL MATERIALS 2017; 27:1704107. [PMID: 30349427 PMCID: PMC6195316 DOI: 10.1002/adfm.201704107] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Clinical application of injectable, thermoresponsive hydrogels is hindered by lack of degradability and controlled drug release. To overcome these challenges, a family of thermoresponsive, ABC triblock polymer-based hydrogels has been engineered to degrade and release drug cargo through either oxidative or hydrolytic/enzymatic mechanisms dictated by the "A" block composition. Three ABC triblock copolymers are synthesized with varying "A" blocks, including oxidation-sensitive poly(propylene sulfide), slow hydrolytically/enzymatically degradable poly(ε-caprolactone), and fast hydrolytically/enzymatically degradable poly(D,L-lactide-co-glycolide), forming the respective formulations PPS135-b-PDMA152-b-PNIPAAM225 (PDN), PCL85-b-PDMA150-b-PNIPAAM150 (CDN), and PLGA60-b-PDMA148-b-PNIPAAM152 (LGDN). For all three polymers, hydrophilic poly(N,N-dimethylacrylamide) and thermally responsive poly(N-isopropylacrylamide) comprise the "B" and "C" blocks, respectively. These copolymers form micelles in aqueous solutions at ambient temperature that can be preloaded with small molecule drugs. These solutions quickly transition into hydrogels upon heating to 37 °C, forming a supra-assembly of physically crosslinked, drug-loaded micelles. PDN hydrogels are selectively degraded under oxidative conditions while CDN and LGDN hydrogels are inert to oxidation but show differential rates of hydrolytic/enzymatic decomposition. All three hydrogels are cytocompatible in vitro and in vivo, and drug-loaded hydrogels demonstrate differential release kinetics in vivo corresponding with their specific degradation mechanism. These collective data highlight the potential cell and drug delivery use of this tunable class of ABC triblock polymer thermogels.
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Affiliation(s)
- Mukesh K Gupta
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235, USA
| | - John R Martin
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235, USA
| | - Bryan R Dollinger
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235, USA
| | - Madison E Hattaway
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235, USA
| | - Craig L Duvall
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235, USA
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14
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Andrei M, Stǎnescu PO, Drǎghici C, Teodorescu M. Degradable thermosensitive injectable hydrogels with two-phase composite structure from aqueous solutions of poly(N-isopropylacrylamide-co-5,6-benzo-2-methylene-1,3-dioxepane)—poly(ethylene glycol) triblock copolymers and biopolymers. Colloid Polym Sci 2017. [DOI: 10.1007/s00396-017-4161-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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15
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Sanz B, von Bilderling C, Tuninetti JS, Pietrasanta L, Mijangos C, Longo GS, Azzaroni O, Giussi JM. Thermally-induced softening of PNIPAm-based nanopillar arrays. SOFT MATTER 2017; 13:2453-2464. [PMID: 28287232 DOI: 10.1039/c7sm00206h] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The surface properties of soft nanostructured hydrogels are crucial in the design of responsive materials that can be used as platforms to create adaptive devices. The lower critical solution temperature (LCST) of thermo-responsive hydrogels such as poly(N-isopropylacrylamide) (PNIPAm) can be modified by introducing a hydrophilic monomer to create a wide range of thermo-responsive micro-/nano-structures in a large temperature range. Using surface initiation atom-transfer radical polymerization in synthesized anodized aluminum oxide templates, we designed, fabricated, and characterized thermo-responsive nanopillars based on PNIPAm hydrogels with tunable mechanical properties by incorporating acrylamide monomers (AAm). In addition to their LCST, the incorporation of a hydrophilic entity in the nanopillars based on PNIPAm has abruptly changed the topological and mechanical properties of our system. To gain an insight into the mechanical properties of the nanostructure, its hydrophilic/hydrophobic behavior and topological characteristics, atomic force microscopy, molecular dynamics simulations and water contact angle studies were combined. When changing the nanopillar composition, a significant and opposite variation was observed in their mechanical properties. As temperature increased above the LCST, the stiffness of PNIPAm nanopillars, as expected, did so too, in contrast to the stiffness of PNIPAm-AAm nanopillars that decreased significantly. The molecular dynamics simulations proposed a local molecular rearrangement in our nanosystems at the LCST. The local aggregation of NIPAm segments near the center of the nanopillars displaced the hydrophilic AAm units towards the surface of the structure leading to contact with the aqueous environment. This behavior was confirmed via contact angle measurements below and above the LCST.
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Affiliation(s)
- Belén Sanz
- Instituto de Ciencia y Tecnología de Polímeros, CSIC, Juan de la Cierva 3, 28006 Madrid, Spain
| | - Catalina von Bilderling
- Instituto de Física de Buenos Aires (IFIBA-CONICET) and Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, C1428EHA Buenos Aires, Argentina
| | - Jimena S Tuninetti
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA) - Departamento de Química - Facultad de Ciencias Exactas - Universidad Nacional de La Plata - CONICET, 1900 La Plata, Argentina.
| | - Lía Pietrasanta
- Instituto de Física de Buenos Aires (IFIBA-CONICET) and Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, C1428EHA Buenos Aires, Argentina and Centro de Microscopías Avanzadas, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, C1428EHA Buenos Aires, Argentina
| | - Carmen Mijangos
- Instituto de Ciencia y Tecnología de Polímeros, CSIC, Juan de la Cierva 3, 28006 Madrid, Spain
| | - Gabriel S Longo
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA) - Departamento de Química - Facultad de Ciencias Exactas - Universidad Nacional de La Plata - CONICET, 1900 La Plata, Argentina.
| | - Omar Azzaroni
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA) - Departamento de Química - Facultad de Ciencias Exactas - Universidad Nacional de La Plata - CONICET, 1900 La Plata, Argentina.
| | - Juan M Giussi
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA) - Departamento de Química - Facultad de Ciencias Exactas - Universidad Nacional de La Plata - CONICET, 1900 La Plata, Argentina.
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16
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Palumbo FS, Agnello S, Fiorica C, Pitarresi G, Puleio R, Tamburello A, Loria R, Giammona G. Hyaluronic Acid Derivative with Improved Versatility for Processing and Biological Functionalization. Macromol Biosci 2016; 16:1485-1496. [DOI: 10.1002/mabi.201600114] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Revised: 06/06/2016] [Indexed: 12/12/2022]
Affiliation(s)
- Fabio S. Palumbo
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche; Sezione di Chimica e Tecnologie Farmaceutiche; Università degli Studi di Palermo; Via Archirafi 32 90123 Palermo Italy
| | - Stefano Agnello
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche; Sezione di Chimica e Tecnologie Farmaceutiche; Università degli Studi di Palermo; Via Archirafi 32 90123 Palermo Italy
| | - Calogero Fiorica
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche; Sezione di Chimica e Tecnologie Farmaceutiche; Università degli Studi di Palermo; Via Archirafi 32 90123 Palermo Italy
| | - Giovanna Pitarresi
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche; Sezione di Chimica e Tecnologie Farmaceutiche; Università degli Studi di Palermo; Via Archirafi 32 90123 Palermo Italy
| | - Roberto Puleio
- Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”; Histopathology and Immunohistochemistry Laboratory; Palermo Italy
| | - Anna Tamburello
- Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”; Histopathology and Immunohistochemistry Laboratory; Palermo Italy
| | - Ruggero Loria
- Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”; Histopathology and Immunohistochemistry Laboratory; Palermo Italy
| | - Gaetano Giammona
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche; Sezione di Chimica e Tecnologie Farmaceutiche; Università degli Studi di Palermo; Via Archirafi 32 90123 Palermo Italy
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17
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Teodorescu M, Andrei M, Turturicǎ G, Stǎnescu PO, Zaharia A, Sârbu A. Novel Thermoreversible Injectable Hydrogel Formulations Based on Sodium Alginate and Poly(N-Isopropylacrylamide). INT J POLYM MATER PO 2015. [DOI: 10.1080/00914037.2015.1030646] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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18
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Hubka KM, Dahlin RL, Meretoja VV, Kasper FK, Mikos AG. Enhancing chondrogenic phenotype for cartilage tissue engineering: monoculture and coculture of articular chondrocytes and mesenchymal stem cells. TISSUE ENGINEERING PART B-REVIEWS 2014; 20:641-54. [PMID: 24834484 DOI: 10.1089/ten.teb.2014.0034] [Citation(s) in RCA: 95] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Articular cartilage exhibits an inherently low rate of regeneration. Consequently, damage to articular cartilage often requires surgical intervention. However, existing treatments generally result in the formation of fibrocartilage tissue, which is inferior to native articular cartilage. As a result, cartilage engineering strategies seek to repair or replace damaged cartilage with an engineered tissue that restores full functionality to the impaired joint. These strategies often involve the use of chondrocytes, yet in vitro expansion and culture can lead to undesirable changes in chondrocyte phenotype. This review focuses on the use of articular chondrocytes and mesenchymal stem cells (MSCs) in either monoculture or coculture for the enhancement of chondrogenesis. Coculture strategies increasingly outperform their monoculture counterparts with regard to chondrogenesis and present unique opportunities to attain chondrocyte phenotype stability in vitro. Methods to prevent chondrocyte dedifferentiation and promote chondrocyte redifferentiation as well as to promote the chondrogenic differentiation of MSCs while preventing MSC hypertrophy are discussed.
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Affiliation(s)
- Kelsea M Hubka
- Department of Bioengineering, Rice University , Houston, Texas
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19
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Matanović MR, Kristl J, Grabnar PA. Thermoresponsive polymers: insights into decisive hydrogel characteristics, mechanisms of gelation, and promising biomedical applications. Int J Pharm 2014; 472:262-75. [PMID: 24950367 DOI: 10.1016/j.ijpharm.2014.06.029] [Citation(s) in RCA: 133] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2014] [Revised: 06/09/2014] [Accepted: 06/16/2014] [Indexed: 12/13/2022]
Abstract
Thermally induced gelling systems have gained enormous attention over the last decade. They consist of hydrophilic homopolymers or block copolymers in water that present a sol at room temperature and form a gel after administration into the body. This article reviews the main types of thermoresponsive polymers, with special focus on decisive hydrogel characteristics, mechanisms of gelation, and biocompatibility. Promising biomedical applications are described with a focus on injectable formulations, which include solubilization of small hydrophobic drugs, controlled release, delivery of labile biopharmaceutics, such as proteins and genes, cell encapsulation, and tissue regeneration. Furthermore, combinations of thermoresponsive hydrogels and various nanocarriers as promising systems for sustained drug delivery are discussed through selected examples from the literature. Finally, there is a brief overview of current progress in nano-sized systems incorporating thermoresponsive properties.
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Affiliation(s)
| | - Julijana Kristl
- University of Ljubljana, Faculty of Pharmacy, Aškerčeva 7, Ljubljana 1000, Slovenia
| | - Pegi Ahlin Grabnar
- University of Ljubljana, Faculty of Pharmacy, Aškerčeva 7, Ljubljana 1000, Slovenia.
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20
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Tsai HY, Lee A, Peng W, Yates MZ. Synthesis of poly(N-isopropylacrylamide) particles for metal affinity binding of peptides. Colloids Surf B Biointerfaces 2014; 114:104-10. [PMID: 24176889 PMCID: PMC3877178 DOI: 10.1016/j.colsurfb.2013.09.060] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2013] [Revised: 09/23/2013] [Accepted: 09/28/2013] [Indexed: 10/26/2022]
Abstract
Temperature-sensitive poly(N-isopropylacrylamide) (PNIPAM) microgel particles with metal affinity ligands were prepared for selective binding of peptides containing the His6-tag (six consecutive histidine residues). The PNIPAM particles were copolymerized with the functional ligand vinylbenzyl iminodiacetic acid (VBIDA) through a two-stage dispersion polymerization using poly(N-vinyl pyrrolidone) (PVP) as a steric stabilizer. The resulting particles were monodisperse in size and colloidally stable over a wide range of temperature and ionic strength due to chemically grafted PVP chains. The particle size was also found to be sensitive to ionic strength and pH of the aqueous environment, likely due to the electrostatic repulsion between ionized VBIDA groups. Divalent nickel ions were chelated to the VBIDA groups, allowing selective metal affinity attachment of a His6-Cys peptide. The peptide was released upon the addition of the competitive ligand imidazole, demonstrating that the peptide attachment to the particles is reversible and selective.
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Affiliation(s)
- Hsin-Yi Tsai
- Department of Chemical Engineering and Laboratory for Laser Energetics, University of Rochester, Rochester, NY 14627, United States
| | - Alexander Lee
- Department of Chemical Engineering and Laboratory for Laser Energetics, University of Rochester, Rochester, NY 14627, United States
| | - Wei Peng
- Department of Chemical Engineering and Laboratory for Laser Energetics, University of Rochester, Rochester, NY 14627, United States
| | - Matthew Z Yates
- Department of Chemical Engineering and Laboratory for Laser Energetics, University of Rochester, Rochester, NY 14627, United States.
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21
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Vo TN, Ekenseair AK, Kasper FK, Mikos AG. Synthesis, physicochemical characterization, and cytocompatibility of bioresorbable, dual-gelling injectable hydrogels. Biomacromolecules 2013; 15:132-42. [PMID: 24320599 DOI: 10.1021/bm401413c] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Injectable, dual-gelling hydrogels were successfully developed through the combination of physical thermogellation at 37 °C and favorable amine:epoxy chemical cross-linking. Poly(N-isopropylacrylamide)-based thermogelling macromers with a hydrolyzable lactone ring and epoxy pendant groups and a biodegradable diamine-functionalized polyamidoamine cross-linker were synthesized, characterized, and combined to produce nonsyneresing and bioresorbable hydrogels. Differential scanning calorimetry and oscillatory rheometry demonstrated the rapid and dual-gelling nature of the hydrogel formation. The postgelation dimensional stability, swelling, and mechanical behavior of the hydrogel system were shown to be easily tuned in the synthesis and formulation stages. The leachable products were found to be cytocompatible under all conditions, while the degradation products demonstrated a dose- and time-dependent response due to solution osmolality. Preliminary encapsulation studies showed mesenchymal stem cell viability could be maintained for 7 days. The results suggest that injectable and thermally and chemically cross-linkable hydrogels are promising alternatives to prefabricated biomaterials for tissue engineering applications, particularly for cell delivery.
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Affiliation(s)
- Tiffany N Vo
- Department of Bioengineering, Rice University , Houston, Texas 77030, United States
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22
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Madry H, Rey-Rico A, Venkatesan JK, Johnstone B, Cucchiarini M. Transforming growth factor Beta-releasing scaffolds for cartilage tissue engineering. TISSUE ENGINEERING PART B-REVIEWS 2013; 20:106-25. [PMID: 23815376 DOI: 10.1089/ten.teb.2013.0271] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The maintenance of a critical threshold concentration of transforming growth factor beta (TGF-β) for a given period of time is crucial for the onset and maintenance of chondrogenesis. Thus, the development of scaffolds that provide temporal and/or spatial control of TGF-β bioavailability has appeal as a mechanism to induce the chondrogenesis of stem cells in vitro and in vivo for articular cartilage repair. In the past decade, many types of scaffolds have been designed to advance this goal: hydrogels based on polysaccharides, hyaluronic acid, and alginate; protein-based hydrogels such as fibrin, gelatin, and collagens; biopolymeric gels and synthetic polymers; and solid and hybrid composite (hydrogel/solid) scaffolds. In this study, we review the progress in developing strategies to deliver TGF-β from scaffolds with the aim of enhancing chondrogenesis. In the future, such scaffolds could prove critical for tissue engineering cartilage, both in vitro and in vivo.
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Affiliation(s)
- Henning Madry
- 1 Center of Experimental Orthopaedics, Saarland University , Homburg, Germany
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23
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Park JS, Yang HN, Woo DG, Jeon SY, Park KH. Poly(N-isopropylacrylamide-co-acrylic acid) nanogels for tracing and delivering genes to human mesenchymal stem cells. Biomaterials 2013; 34:8819-34. [PMID: 23937912 DOI: 10.1016/j.biomaterials.2013.07.082] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2013] [Accepted: 07/23/2013] [Indexed: 12/24/2022]
Abstract
Drugs, proteins, and cells can be macro- and micro-encapsulated by unique materials that respond to specific stimuli. The phases and hydrophobic interactions of these materials are reversibly altered by environmental stimuli such as pH and temperature. These changes can lead to self-assembly of the materials, which enables controlled drug release and safe gene delivery into cells and tissues. The fate of stem cells delivered by such methods is of great interest. The formation of transgenic tissues requires genes to be delivered safely into stem cells. A cell tracing vehicle and a gene delivery carrier were simultaneously introduced into human mesenchymal stem cells (hMSCs). A thermo-sensitive hydrogel, poly(N-isopropylacrylamide-co-acrylic acid) (p(NiPAAm-co-AAc)), was created to generate self-assembled nanoparticles with nanogel characteristics. Hydrophobic interactions mediated the binding of the carboxyl group on the outside of p(NiPAAm-co-AAc) with the amine group of iron oxide. Nanogels carrying iron oxide and a fluorescent dye were complexed with specific genes. These nanogels could be internalized by hMSCs, and the transplantation of these cells into mice was monitored by in vivo imaging. Self-assembled p(NiPAAm-co-dAAc) nanogels complexed with green fluorescent protein were highly expressed in hMSCs and are a potential material for gene delivery.
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Affiliation(s)
- Ji Sun Park
- Department of Biomedical Science, College of Life Science, CHA University, 3F, Yatap Acecore, 502 Yatap-dong Bundang-gu, Seongnam-si, Republic of Korea
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24
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Kavas A, Cagatay ST, Banerjee S, Keskin D, Tezcaner A. Potential of Raloxifene in reversing osteoarthritis-like alterations in rat chondrocytes: an in vitro model study. J Biosci 2013; 38:135-47. [PMID: 23385821 DOI: 10.1007/s12038-012-9282-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The aim of this study was to investigate the effects of Raloxifene (Ral) on degeneration-related changes in osteoarthritis (OA)-like chondrocytes using two- and three-dimensional models. Five-azacytidine (Aza-C) was used to induce OA-like alterations in rat articular chondrocytes and the model was verified at molecular and macrolevels. Chondrocytes were treated with Ral (1, 5 and 10 mu M) for 10 days. Caspase-3 activity, gene expressions of aggrecan, collagen II, alkaline phosphatase (ALP), collagen X, matrix metalloproteinases (MMP-13, MMP-3 and MMP-2), and MMP-13, MMP-3 and MMP-2 protein expressions were studied in two-dimensional model. Matrix deposition and mechanical properties of agarose-chondrocyte discs were evaluated in three-dimensional model. One mu M Ral reduced expression of OA-related genes, decreased apoptosis, and MMP-13 and MMP-3 protein expressions. It also increased aggrecan and collagen II gene expressions relative to untreated OA-like chondrocytes. In three-dimensional model, 1 mu M Ral treatment resulted in increased collagen deposition and improved mechanical properties, although a significant increase for sGAG was not observed. In summation, 1 mu M Ral improved matrix-related activities, whereas dose increment reversed these effects except ALP gene expression and sGAG deposition. These results provide evidence that low-dose Ral has the potential to cease or reduce the matrix degeneration in OA.
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Affiliation(s)
- Aysegul Kavas
- Department of Engineering Sciences, Center of Excellence in Biomaterials and Tissue Engineering, Middle East Technical University, Ankara 06800, Turkey
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Abstract
The delivery of living cells into a host body has emerged as a promising approach to treating a variety of different diseases and for tissue repair. However, one of the major obstacles for clinical success is to deliver the cells to the target tissue without losing control of cell fate and function after transplantation. Temperature-responsive biomaterials represent a promising vehicle to deliver cells noninvasively by injection of a liquid precursor, which undergoes a reversible phase transition at body temperature, thus, forming temperature-induced hydrogels in situ. The final material provides transplanted cells with a synthetic extracellular matrix, which retains the cells at the injection site, supports cell growth and mitigates migration. This mini review is intended to cover the fundamental physicochemical characteristics of these thermoresponsive biomaterials, and to examine the applications, with a focus on the recently developed cell-delivery systems for tissue engineering and cell therapy, including advantages, limitations and future challenges.
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Abstract
Growth factors are soluble secreted proteins capable of affecting a variety of cellular processes important for tissue regeneration. Consequently, the self-healing capacity of patients can be augmented by artificially enhancing one or more processes important for healing through the application of growth factors. However, their application in clinics remains limited due to lack of robust delivery systems and biomaterial carriers. Interestingly, all clinically approved therapies involving growth factors utilize some sort of a biomaterial carrier for growth factor delivery. This suggests that biomaterial delivery systems are extremely important for successful usage of growth factors in regenerative medicine. This review outlines the role of growth factors in tissue regeneration, and their application in both pre-clinical animal models of regeneration and clinical trials is discussed. Additionally, current status of biomaterial substrates and sophisticated delivery systems such as nanoparticles for delivery of exogenous growth factors and peptides in humans are reviewed. Finally, issues and possible future research directions for growth factor therapy in regenerative medicine are discussed.
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Affiliation(s)
- Piyush Koria
- Department of Chemical and Biomedical Engineering, University of South Florida, Tampa, FL 33620, USA.
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Moon JH, Kuh SU, Park HS, Kim KH, Park JY, Chin DK, Kim KS, Cho YE. Triamcinolone decreases bupivacaine toxicity to intervertebral disc cell in vitro. Spine J 2012; 12:665-73. [PMID: 22819189 DOI: 10.1016/j.spinee.2012.06.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2011] [Revised: 04/05/2012] [Accepted: 06/05/2012] [Indexed: 02/03/2023]
Abstract
BACKGROUND CONTEXT Local anesthetics combined with corticosteroids are commonly used for management of back pain in interventional spinal procedures. Several recent studies suggest cytotoxicity of bupivacaine, whereas others report protective and cytotoxic effects of corticosteroids on chondrocytes and intervertebral disc cells. Considering the frequent use of these agents in spinal interventions, it is meaningful to know how they affect intervertebral disc cells. PURPOSE This study was conducted to assess the effects of bupivacaine and triamcinolone, both alone and in combination, on viability of intervertebral disc cells in vitro. STUDY DESIGN Controlled laboratory study. METHODS Nucleus pulposus cells were isolated from human disc specimens from patients undergoing surgery because of disc herniation or degenerative disc disease. They were grown in three-dimensional alginate beads for 1 week to maintain their differentiated phenotypes and to allow for matrix formation before analysis. After 1 week of culture, the cells were exposed to bupivacaine (0.1%, 0.25%, 0.5%, and 1%) or bupivacaine (0.1%, 0.25%, 0.5%, and 1%) with 1 mg of triamcinolone for 1, 3, or 6 hours. Cell viability was measured using trypan blue exclusion assay and flow cytometry. Live cell/dead cell fluorescent imaging was assessed using confocal microscopy. RESULTS Trypan blue exclusion assays demonstrated dose- and time-dependent cytotoxic effects of bupivacaine on human nucleus pulposus cells. Similar but reduced cytotoxicity was observed after exposure to the combination of bupivacaine and 1 mg of triamcinolone. Flow cytometry showed a dose-dependent cytotoxic effect of bupivacaine on nucleus pulposus cells after 3 hours of exposure. The reduced cytotoxicity of bupivacaine combined with 1 mg of triamcinolone was also confirmed in flow cytometry. Confocal images showed that the increase in dead cells correlated with the concentration of bupivacaine. Nevertheless, fewer cells died after exposure to several different concentrations of bupivacaine combined with 1 mg of triamcinolone than did after exposure to bupivacaine alone. CONCLUSIONS The combination of bupivacaine and triamcinolone induced dose- and time-dependent cytotoxicity on human intervertebral disc cells in vitro, but the cytotoxicity was much weaker than that of bupivacaine alone. This study shows a potential protective influence of triamcinolone on intervertebral disc cells.
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Affiliation(s)
- Ju-Hyung Moon
- Department of Neurosurgery, Spine and Spinal Cord Institute, Gangnam Severance Spine Hospital, Yonsei University College of Medicine, 712 Eonjuro, Gangnam-gu, Seoul, South Korea
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SOX9 gene plus heparinized TGF-β 3 coated dexamethasone loaded PLGA microspheres for inducement of chondrogenesis of hMSCs. Biomaterials 2012; 33:7151-63. [PMID: 22795539 DOI: 10.1016/j.biomaterials.2012.06.023] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2012] [Accepted: 06/15/2012] [Indexed: 11/20/2022]
Abstract
Microparticulated types of scaffolds have been widely applied in stem cell therapy and the tissue engineering field for the regeneration of wound tissues. During application of simple genes or growth factors and cell delivery vehicles, we designed a method that employs dexamethsone loaded PLGA microspheres consisting of polyplexed SOX9 genes plus heparinized TGF-β 3 on the surface of polymeric microspheres prepared using a layer-by-layer (LbL) method. The fabrication of the polyplexed SOX9 genes plus heparinized TGF-β 3 and their subsequent coating onto dexamethsone loaded PLGA microspheres represents a method for functionalization of the polymeric matrix. The use of SOX9 gene plus heparinized TGF-β 3 coated dexamethsone loaded PLGA microspheres was evaluated to determine their potential as both gene carriers and cell delivery vehicle. By adhesion of hMSCs onto SOX9 gene plus heparinized TGF-β 3 coated dexamethsone loaded PLGA microspheres, the chondrogenesis-related specific genes of collagen type II were increased 30 times comparing to control. Also, the specific extracellular matrix of glycosaminoglycan (GAG) production of hMSCs adhered onto SOX9 gene plus heparinized TGF-β 3 coated dexamethasone loaded PLGA microspheres increased more 2.5 times than control group. Not only in vitro culture but in vivo results, the specific genes of COMP, aggrecan, collagen type II, and SOX9 showed much more gene expressions such as 20, 15, 10, 8 times.
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Xia Y, Gu Y, Zhou X, Xu H, Zhao X, Yaseen M, Lu JR. Controllable Stabilization of Poly(N-isopropylacrylamide)-Based Microgel Films through Biomimetic Mineralization of Calcium Carbonate. Biomacromolecules 2012; 13:2299-308. [PMID: 22715987 DOI: 10.1021/bm300539f] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Yongqing Xia
- Centre for Bioengineering and Biotechnology, 66 Changjiang West Road, Qingdao
Economic Development Zone, Qingdao 266555, China
| | - Yanfeng Gu
- Centre for Bioengineering and Biotechnology, 66 Changjiang West Road, Qingdao
Economic Development Zone, Qingdao 266555, China
| | - Xuan Zhou
- Centre for Bioengineering and Biotechnology, 66 Changjiang West Road, Qingdao
Economic Development Zone, Qingdao 266555, China
| | - Hai Xu
- Centre for Bioengineering and Biotechnology, 66 Changjiang West Road, Qingdao
Economic Development Zone, Qingdao 266555, China
| | - Xiubo Zhao
- Department of Chemical
and Biological Engineering, University of Sheffield, Mappin Street, Sheffield, S1 3JD, United
Kingdom
- Biological Physics
Laboratory, School of Physics and Astronomy, University of Manchester, Schuster Building, Oxford Road, Manchester,
M13 9PL, United Kingdom
| | - Mohammed Yaseen
- Biological Physics
Laboratory, School of Physics and Astronomy, University of Manchester, Schuster Building, Oxford Road, Manchester,
M13 9PL, United Kingdom
| | - Jian Ren Lu
- Biological Physics
Laboratory, School of Physics and Astronomy, University of Manchester, Schuster Building, Oxford Road, Manchester,
M13 9PL, United Kingdom
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31
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Banerjee I, Mishra D, Das T, Maiti TK. Wound pH-Responsive Sustained Release of Therapeutics from a Poly(NIPAAm-co-AAc) Hydrogel. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 23:111-32. [DOI: 10.1163/092050610x545049] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Indranil Banerjee
- a Department of Biotechnology, Indian Institute of Technology Kharagpur, India
| | - Debasish Mishra
- b Department of Biotechnology, Indian Institute of Technology Kharagpur, India
| | - Tamal Das
- c Department of Biotechnology, Indian Institute of Technology Kharagpur, India
| | - Tapas K. Maiti
- d Department of Biotechnology, Indian Institute of Technology Kharagpur, India
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32
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An Y, Zhang L, Xiong S, Wu S, Xu M, Xu Z. Fluorine-containing thermo-sensitive microgels as carrier systems for biomacromolecules. Colloids Surf B Biointerfaces 2012; 92:246-53. [DOI: 10.1016/j.colsurfb.2011.11.056] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2011] [Revised: 11/22/2011] [Accepted: 11/29/2011] [Indexed: 10/14/2022]
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Mesenchymal stem cell-based tissue engineering for chondrogenesis. J Biomed Biotechnol 2011; 2011:806891. [PMID: 22007146 PMCID: PMC3191858 DOI: 10.1155/2011/806891] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2011] [Revised: 07/19/2011] [Accepted: 08/12/2011] [Indexed: 02/07/2023] Open
Abstract
In tissue engineering fields, recent interest has been focused on stem cell therapy to replace or repair damaged or worn-out tissues due to congenital abnormalities, disease, or injury. In particular, the repair of articular cartilage degeneration by stem cell-based tissue engineering could be of enormous therapeutic and economic benefit for an aging population. Bone marrow-derived mesenchymal stem cells (MSCs) that can induce chondrogenic differentiation would provide an appropriate cell source to repair damaged cartilage tissues; however, we must first understand the optimal environmental conditions for chondrogenic differentiation. In this review, we will focus on identifying the best combination of MSCs and functional extracellular matrices that provides the most successful chondrogenesis.
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Kim BS, Park IK, Hoshiba T, Jiang HL, Choi YJ, Akaike T, Cho CS. Design of artificial extracellular matrices for tissue engineering. Prog Polym Sci 2011. [DOI: 10.1016/j.progpolymsci.2010.10.001] [Citation(s) in RCA: 207] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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35
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Park JS, Yang HN, Woo DG, Jeon SY, Park KH. Chondrogenesis of human mesenchymal stem cells in fibrin constructs evaluated in vitro and in nude mouse and rabbit defects models. Biomaterials 2010; 32:1495-507. [PMID: 21122912 DOI: 10.1016/j.biomaterials.2010.11.003] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2010] [Accepted: 11/03/2010] [Indexed: 11/30/2022]
Abstract
In this study, hMSCs encapsulated in a fibrin hydrogel containing heparinized NPs loaded with TGF-β3 (100 ng/ml), or TGF-β3 (100 ng/ml) alone, were subjected to growth factor release and denaturation tests at one, two and four weeks in in vitro culture systems. Additionally, stem cell differentiation was assessed via RT-PCR, real-time quantitative PCR (qPCR), histology, and immunohistochemical assays. In the in vivo studies with nude mouse, when transplanted into nude mice, hMSCs embedded in fibrin hydrogels survived and proliferated more readily in those samples containing TGF-β3-loaded NPs, or TGF-β3 alone, compared to those containing only NPs or the fibrin hydrogel alone. Additionally, RT-PCR, real-time qPCR, histology, Western blotting, and immunohistochemistry analyses revealed that chondrocyte-specific extracellular matrix (ECM) genes and their proteins were expressed at high levels by hMSCs embedded in hydrogels containing TGF-β3-loaded NPs. Finally, the results observed in the rabbit animal model treated with hMSCs embedded in a fibrin hydrogel containing TGF-β3-loaded NPs were also evaluated by the RT-PCR, real-time qPCR, histology, Western blotting, and immunohistochemistry analyses. The in vitro and in vivo results indicated that transplanted hMSCs together with TGF-β3 may constitute a clinically efficient method for the regeneration of hyaline articular cartilage.
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Affiliation(s)
- Ji S Park
- Department of Biomedical Science, College of Life Science, CHA University 606-16, Yeoksam 1-dong, Kangnam-gu, Seoul 135-081, Republic of Korea
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In vitro investigation and biomechanical modeling of the effects of PLF-68 on osteoarthritis in a three-dimensional model. Biomech Model Mechanobiol 2010; 10:641-50. [PMID: 20967483 DOI: 10.1007/s10237-010-0262-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2010] [Accepted: 10/06/2010] [Indexed: 10/18/2022]
Abstract
In this study, it was hypothesized that Pluronic F-68 (PLF-68) increases matrix synthesis of osteoarthritis (OA) chondrocytes in addition to its well-documented cell survival effect. To test this hypothesis, rat articular chondrocytes were embedded in agarose discs and were exposed to 5-azacytidine (Aza-C) to induce OA-like alterations. Chondrocytes were then treated with PLF-68 (8 and 12 mg/ml) for 10 days. Aza-C-exposed and PLF-68-untreated chondrocytes and Aza-C-unexposed and PLF-68-untreated chondrocytes were used as negative and positive control groups, respectively. Dynamic hydrostatic pressure (max 0.2 MPa, 0.1 Hz) was applied to discs for 30 min/day (5 days/week). Cell viability, collagen and proteoglycan deposition in discs were determined. Unconfined compression stress relaxation tests were performed to determine peak stress and material parameters of discs--namely spring constants (k (1) and k (2)), damping coefficient (η), instantaneous modulus (E (0)) and relaxed modulus (E (∞)) using Kelvin model to evaluate the functional coherence of the matrix. PLF-68 treatment significantly increased the collagen deposition in discs and viability of OA-like chondrocytes. A dose-dependent increase was also observed for elastic stiffness parameters (k (1), k (2), E (0) and E (∞)). Same positive effect of PLF-68 was not observed for proteoglycan deposition. However, dose-dependent increase in η suggests that PLF-68 treatment resulted with the deposition of functional matrix. This is the first study which reports that PLF-68 has also positive effect on collagen synthesis of OA cells. As a conclusion, our results suggest that PLF-68 has a potential for recovery from OA-like alterations, which should be further analyzed.
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Park JS, Woo DG, Yang HN, Lim HJ, Park KM, Na K, Park KH. Chondrogenesis of human mesenchymal stem cells encapsulated in a hydrogel construct: neocartilage formation in animal models as both mice and rabbits. J Biomed Mater Res A 2010; 92:988-96. [PMID: 19296541 DOI: 10.1002/jbm.a.32341] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In this study, in vivo studies, both nude mouse and rabbit cartilage defect, were tested for chondrogenesis using stem cells (SCs) using growth factor. Specifically, human mesenchymal stem cells (hMSCs) were embedded in a hydrogel scaffold, which was coencapsulated with transforming growth factor-beta3 (TGF-beta3). The specific extracellular matrices (ECMs) released from hMSCs transplanted into the animal were assessed via glycosaminoglycan (GAG)/DNA content, RT-PCR, real time-QPCR, immunohistochemical (IHC), and Safranin-O staining and were observed up to 7 weeks after injection. By detection of ECMs the GAG content per cell remained constant for all formulations, indicating that the dramatic increase in cell number for samples with TGF-beta3 was accompanied by the maintenance of the cell phenotypes. The histological and IHC staining of the newly repaired tissues observed after treatment with TGF-beta3 mixed with hMSCs evidenced hyaline cartilage-like characteristics. Moreover, the results observed with the animal model (rabbit) treated with hMSCs embedded in the growth factor-containing hydrogel indicate that the implantation of mixed cells with TGF-beta3 may constitute a clinically efficient method for the regeneration of hyaline articular cartilage.
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Affiliation(s)
- Ji Sun Park
- College of Medicine, Pochon CHA University, Seoul, Republic of Korea
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Overstreet DJ, Dhruv HD, Vernon BL. Bioresponsive Copolymers of Poly(N-isopropylacrylamide) with Enzyme-Dependent Lower Critical Solution Temperatures. Biomacromolecules 2010; 11:1154-9. [DOI: 10.1021/bm100035f] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Derek J. Overstreet
- School of Biological and Health Systems Engineering, Center for Interventional Biomaterials, Arizona State University, Tempe, Arizona 85287-9709
| | - Harshil D. Dhruv
- School of Biological and Health Systems Engineering, Center for Interventional Biomaterials, Arizona State University, Tempe, Arizona 85287-9709
| | - Brent L. Vernon
- School of Biological and Health Systems Engineering, Center for Interventional Biomaterials, Arizona State University, Tempe, Arizona 85287-9709
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Park JS, Yang HJ, Woo DG, Yang HN, Na K, Park KH. Chondrogenic differentiation of mesenchymal stem cells embedded in a scaffold by long-term release of TGF-beta 3 complexed with chondroitin sulfate. J Biomed Mater Res A 2010; 92:806-16. [PMID: 19280636 DOI: 10.1002/jbm.a.32388] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
In this study, mesenchymal stem cells (MSCs) embedded in biodegradable and water-swollen, elastic block copolymer scaffolds were assessed for MSC chondrogenesis. To determine the optimal conditions for chondrogenesis of the embedded rMSCs, transforming growth factor-beta 3 (TGF-beta 3) was physically conjugated with chondroitin sulfate (CS) and mixed into scaffolds, which were subsequently evaluated for the differentiation of transplanted rMSCs. In determination of CS-bound growth factors for chondrogenesis, scaffold mixed with rMSCs and TGF-beta 3 was then tested by growth factor release profiles, confocal laser microscopy, RT-PCR analysis, real time-QPCR, and histology. The results of several different analyses of the transplanted rMSCs embedded in the scaffolds showed that rMSCs coupled with a CS-bound TGF-beta 3 encapsulated scaffold evidenced superior cartilage tissue formation as measured by an assay of specific gene and protein expression. Moreover, the scaffold exhibited more rapid and more distinct morphology of differentiated rMSCs than was observed with other scaffolds, as determined by histology and immunochemical histology analysis. These results indicate that the elastic block copolymer scaffolds combined with a CS-bound TGF-beta 3 should prove very suitable matrix for cell-based cartilage tissue engineering.
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Affiliation(s)
- Ji Sun Park
- CHA Stem Cell Institute, College of Medicine, Pochon CHA University, 606-16 Yeoksam 1-dong, Kangnam-gu, Seoul 135-081, Republic of Korea
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Giovannini S, Diaz-Romero J, Aigner T, Mainil-Varlet P, Nesic D. Population doublings and percentage of S100-positive cells as predictors of in vitro chondrogenicity of expanded human articular chondrocytes. J Cell Physiol 2009; 222:411-20. [PMID: 19890919 DOI: 10.1002/jcp.21965] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The aim of this study was to investigate the interconnection between the processes of proliferation, dedifferentiation, and intrinsic redifferentiation (chondrogenic) capacities of human articular chondrocyte (HAC), and to identify markers linking HAC dedifferentiation status with their chondrogenic potential. Cumulative population doublings (PD) of HAC expanded in monolayer culture were determined, and a threshold range of 3.57-4.19 PD was identified as indicative of HAC loss of intrinsic chondrogenic capacity in pellets incubated without added chondrogenic factors. While several specific gene and surface markers defined early HAC dedifferentiation process, no clear correlation with the loss of intrinsic chondrogenic potential could be established. CD90 expression during HAC monolayer culture revealed two subpopulations, with sorted CD90-negative cells showing lower proliferative capacity and higher chondrogenic potential compared to CD90-positive cells. Although these data further validated PD as critical for in vitro chondrogenesis, due to the early shift in expression, CD90 could not be considered for predicting chondrogenic potential of HAC expanded for several weeks. In contrast, an excellent mathematically modeled correlation was established between PD and the decline of HAC expressing the intracellular marker S100, providing a direct link between the number of cell divisions and dedifferentiation/loss of intrinsic chondrogenic capacity. Based on the dynamics of S100-positive HAC during expansion, we propose asymmetric cell division as a potential mechanism of HAC dedifferentiation, and S100 as a marker to assess chondrogenicity of HAC during expansion, of potential value for cell-based cartilage repair treatments.
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The use of green fluorescence gene (GFP)-modified rabbit mesenchymal stem cells (rMSCs) co-cultured with chondrocytes in hydrogel constructs to reveal the chondrogenesis of MSCs. Biomaterials 2009; 30:6374-85. [DOI: 10.1016/j.biomaterials.2009.07.062] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2009] [Accepted: 07/28/2009] [Indexed: 01/22/2023]
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43
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Park JS, Na K, Woo DG, Yang HN, Park KH. Determination of dual delivery for stem cell differentiation using dexamethasone and TGF-β3 in/on polymeric microspheres. Biomaterials 2009; 30:4796-805. [DOI: 10.1016/j.biomaterials.2009.05.054] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2009] [Accepted: 05/19/2009] [Indexed: 10/20/2022]
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Baroli B. From natural bone grafts to tissue engineering therapeutics: Brainstorming on pharmaceutical formulative requirements and challenges. J Pharm Sci 2009; 98:1317-75. [PMID: 18729202 DOI: 10.1002/jps.21528] [Citation(s) in RCA: 101] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Tissue engineering is an emerging multidisciplinary field of investigation focused on the regeneration of diseased or injured tissues through the delivery of appropriate molecular and mechanical signals. Therefore, bone tissue engineering covers all the attempts to reestablish a normal physiology or to speed up healing of bone in all musculoskeletal disorders and injuries that are lashing modern societies. This article attempts to give a pharmaceutical perspective on the production of engineered man-made bone grafts that are described as implantable tissue engineering therapeutics, and to highlight the importance of understanding bone composition and structure, as well as osteogenesis and bone healing processes, to improve the design and development of such implants. In addition, special emphasis is given to pharmaceutical aspects that are frequently minimized, but that, instead, may be useful for formulation developments and in vitro/in vivo correlations.
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Affiliation(s)
- Biancamaria Baroli
- Dip. Farmaco Chimico Tecnologico, Università di Cagliari, Via Ospedale, 72, 09124 Cagliari, Italy
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45
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Park JS, Yang HN, Woo DG, Chung HM, Park KH. In Vitro and In Vivo Chondrogenesis of Rabbit Bone Marrow–Derived Stromal Cells in Fibrin Matrix Mixed with Growth Factor Loaded in Nanoparticles. Tissue Eng Part A 2009; 15:2163-75. [DOI: 10.1089/ten.tea.2008.0532] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Ji Sun Park
- College of Medicine, CHA Stem Cell Institute, Pochon CHA University, Seoul, Republic of Korea
| | - Han Na Yang
- College of Medicine, CHA Stem Cell Institute, Pochon CHA University, Seoul, Republic of Korea
| | - Dae Gyun Woo
- College of Medicine, CHA Stem Cell Institute, Pochon CHA University, Seoul, Republic of Korea
| | - Hyung-Min Chung
- College of Medicine, CHA Stem Cell Institute, Pochon CHA University, Seoul, Republic of Korea
| | - Keun-Hong Park
- College of Medicine, CHA Stem Cell Institute, Pochon CHA University, Seoul, Republic of Korea
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46
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Park KH, Park W, Na K. Synthetic matrix containing glucocorticoid and growth factor for chondrogenic differentiation of stem cells. J Biosci Bioeng 2009; 108:168-73. [DOI: 10.1016/j.jbiosc.2009.03.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2009] [Revised: 03/10/2009] [Accepted: 03/11/2009] [Indexed: 10/20/2022]
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47
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Quaglia F. Bioinspired tissue engineering: The great promise of protein delivery technologies. Int J Pharm 2008; 364:281-97. [DOI: 10.1016/j.ijpharm.2008.04.030] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2008] [Revised: 04/11/2008] [Accepted: 04/15/2008] [Indexed: 01/27/2023]
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48
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Park KH, Lee DH, Na K. Transplantation of poly(N-isopropylacrylamide-co-vinylimidazole) hydrogel constructs composed of rabbit chondrocytes and growth factor-loaded nanoparticles for neocartilage formation. Biotechnol Lett 2008; 31:337-46. [PMID: 18979214 DOI: 10.1007/s10529-008-9871-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2008] [Revised: 10/12/2008] [Accepted: 10/13/2008] [Indexed: 11/28/2022]
Abstract
To evaluate their protein activity, heparinized nanoparticles (NPs) in which growth factors were loaded into a thermoreversible hydrogel [poly(N-isopropylacrylamide-co-vinylimidazole)]; p(NiPAAm-co-VI) have been investigated with regard to their activity in cell differentiation. Specifically, rabbit chondrocytes were embedded in composite hydrogels co-encapsulating NPs loaded with transforming growth factor beta-1 (TGF beta-1). The specific ECMs associated cartilage tissue component was determined via immunohistochemistry (IHC) and Alcian blue (GAG) staining. In the same period of transplantation, the DNA content was different for all formulations, thereby indicating that the dramatic increase in cell number for the TGF beta-1 loaded NP samples was accompanied by the maintenance of the cell phenotypes. These results suggested the growth factor-loaded heparinized NPs in a chondrocyte-embedded hydrogel as suitable model for the cartilage tissue regeneration.
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Affiliation(s)
- Keun-Hong Park
- Cell and Gene Therapy Research Institute, College of Medicine, Pochon CHA University, 606-16, Yeoksam 1-dong, Kangnam-gu, Seoul, 135-081, South Korea
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Na K, Kim S, Sun BK, Woo DG, Yang HN, Chung HM, Park KH. Bioimaging of dexamethasone and TGF β-1 and its biological activities of chondrogenic differentiation in hydrogel constructs. J Biomed Mater Res A 2008; 87:283-9. [DOI: 10.1002/jbm.a.31792] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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50
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Park KH, Na K. Effect of growth factors on chondrogenic differentiation of rabbit mesenchymal cells embedded in injectable hydrogels. J Biosci Bioeng 2008; 106:74-9. [DOI: 10.1263/jbb.106.74] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2008] [Accepted: 04/16/2008] [Indexed: 11/17/2022]
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