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Fus-Kujawa A, Mendrek B, Bajdak-Rusinek K, Diak N, Strzelec K, Gutmajster E, Janelt K, Kowalczuk A, Trybus A, Rozwadowska P, Wojakowski W, Gawron K, Sieroń AL. Gene-repaired iPS cells as novel approach for patient with osteogenesis imperfecta. Front Bioeng Biotechnol 2023; 11:1205122. [PMID: 37456734 PMCID: PMC10348904 DOI: 10.3389/fbioe.2023.1205122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 06/21/2023] [Indexed: 07/18/2023] Open
Abstract
Introduction: The benefits of patient's specific cell/gene therapy have been reported in relation to numerous genetic related disorders including osteogenesis imperfecta (OI). In osteogenesis imperfecta particularly also a drug therapy based on the administration of bisphosphonates partially helped to ease the symptoms. Methods: In this controlled trial, fibroblasts derived from patient diagnosed with OI type II have been successfully reprogrammed into induced Pluripotent Stem cells (iPSCs) using Yamanaka factors. Those cells were subjected to repair mutations found in the COL1A1 gene using homologous recombination (HR) approach facilitated with star polymer (STAR) as a carrier of the genetic material. Results: Delivery of the correct linear DNA fragment to the osteogenesis imperfecta patient's cells resulted in the repair of the DNA mutation with an 84% success rate. IPSCs showed 87% viability after STAR treatment and 82% with its polyplex. Discussion: The use of novel polymer Poly[N,N-Dimethylaminoethyl Methacrylate-co-Hydroxyl-Bearing Oligo(Ethylene Glycol) Methacrylate] Arms (P(DMAEMA-co-OEGMA-OH) with star-like structure has been shown as an efficient tool for nucleic acids delivery into cells (Funded by National Science Centre, Contract No. UMO-2020/37/N/NZ2/01125).
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Affiliation(s)
- Agnieszka Fus-Kujawa
- Department of Medical Genetics, Faculty of Medical Sciences in Katowice, Medical University of Silesia, Katowice, Poland
| | - Barbara Mendrek
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, Zabrze, Poland
| | - Karolina Bajdak-Rusinek
- Department of Medical Genetics, Faculty of Medical Sciences in Katowice, Medical University of Silesia, Katowice, Poland
| | - Natalia Diak
- Department of Medical Genetics, Faculty of Medical Sciences in Katowice, Medical University of Silesia, Katowice, Poland
| | - Karolina Strzelec
- Department of Molecular Biology, Faculty of Medical Sciences in Katowice, Medical University of Silesia, Katowice, Poland
| | - Ewa Gutmajster
- Biotechnology Centre, Silesian University of Technology, Gliwice, Poland
| | - Kamil Janelt
- Department of Medical Genetics, Faculty of Medical Sciences in Katowice, Medical University of Silesia, Katowice, Poland
| | - Agnieszka Kowalczuk
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, Zabrze, Poland
| | - Anna Trybus
- Department of Medical Genetics, Faculty of Medical Sciences in Katowice, Medical University of Silesia, Katowice, Poland
- Students Scientific Society, Faculty of Medical Sciences in Katowice, Medical University of Silesia, Katowice, Poland
| | - Patrycja Rozwadowska
- Department of Medical Genetics, Faculty of Medical Sciences in Katowice, Medical University of Silesia, Katowice, Poland
- Students Scientific Society, Faculty of Medical Sciences in Katowice, Medical University of Silesia, Katowice, Poland
| | - Wojciech Wojakowski
- Division of Cardiology and Structural Heart Diseases, Medical University of Silesia, Katowice, Poland
| | - Katarzyna Gawron
- Department of Molecular Biology, Faculty of Medical Sciences in Katowice, Medical University of Silesia, Katowice, Poland
| | - Aleksander L. Sieroń
- Formerly Department of Molecular Biology, Faculty of Medical Sciences in Katowice, Medical University of Silesia, Katowice, Poland
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Unruh RM, Bornhoeft LR, Nichols SP, Wisniewski NA, McShane MJ. Inorganic-Organic Interpenetrating Network Hydrogels as Tissue-Integrating Luminescent Implants: Physicochemical Characterization and Preclinical Evaluation. Macromol Biosci 2022; 22:e2100380. [PMID: 34847287 PMCID: PMC8930476 DOI: 10.1002/mabi.202100380] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 11/23/2021] [Indexed: 11/07/2022]
Abstract
Sensors capable of accurate, continuous monitoring of biochemistry are crucial to the realization of personalized medicine on a large scale. Great strides have been made to enhance tissue compatibility of long-term in vivo biosensors using biomaterials strategies such as tissue-integrating hydrogels. However, the low level of oxygen in tissue presents a challenge for implanted devices, especially when the biosensing function relies on oxygen as a measure-either as a primary analyte or as an indirect marker to transduce levels of other biomolecules. This work presents a method of fabricating inorganic-organic interpenetrating network (IPN) hydrogels to optimize the oxygen transport through injectable biosensors. Capitalizing on the synergy between the two networks, various physicochemical properties (e.g., swelling, glass transition temperature, and mechanical properties) are shown to be independently adjustable while maintaining a 250% increase in oxygen permeability relative to poly(2-hydroxyethyl methacrylate) controls. Finally, these gels, when functionalized with a Pd(II) benzoporphyrin phosphor, track tissue oxygen in real time for 76 days as subcutaneous implants in a porcine model while promoting tissue ingrowth and minimizing fibrosis around the implant. These findings support IPN networks for fine-tuned design of implantable biomaterials in personalized medicine and other biomedical applications.
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Affiliation(s)
- Rachel M. Unruh
- 5045 Emerging Technologies Building, 3120 TAMU, College Station, TX 77843, USA
| | | | | | | | - Michael J. McShane
- 5045 Emerging Technologies Building, 3120 TAMU, College Station, TX 77843, USA
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3
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Beltran FO, Houk CJ, Grunlan MA. Bioactive Siloxane-Containing Shape-Memory Polymer (SMP) Scaffolds with Tunable Degradation Rates. ACS Biomater Sci Eng 2021; 7:1631-1639. [PMID: 33667062 DOI: 10.1021/acsbiomaterials.1c00113] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A material-guided, regenerative approach to heal cranial defects requires a scaffold that cannot only achieve conformal fit into irregular geometries but also has bioactivity and suitable resorption rates. We have previously reported "self-fitting" shape-memory polymer (SMP) scaffolds based on poly(ε-caprolactone) diacrylate (PCL-DA) that shape recover to fill irregular defect geometries. However, PCL-DA scaffolds lack innate bioactivity and degrade very slowly. Polydimethylsiloxane (PDMS) has been shown to impart innate bioactivity and modify degradation rates when combined with organic cross-linked networks. Thus, this work reports the introduction of PDMS segments to form PCL/PDMS SMP scaffolds. These were prepared as co-matrices with three types of macromers to systematically alter PDMS content and cross-link density. Specifically, PCL90-DA was combined with linear-PDMS66-dimethacrylate (DMA) or 4-armed star-PDMS66-tetramethacrylate (TMA) macromers at 90:10, 75:25, and 60:40 wt % ratios. Additionally, a triblock macromer (AcO-PCL45-b-PDMS66-b-PCL45-OAc), having a 65:35 wt % ratio PCL/PDMS, was used. Scaffolds exhibited pore interconnectivity and uniform pore sizes and further maintained excellent shape-memory behavior. Degradation rates increased with PDMS content and reduced cross-link density, with phase separation contributing to this effect. Irrespective of PDMS content, all PCL/PDMS scaffolds exhibited the formation of carbonated hydroxyapatite (HAp) following exposure to simulated body fluid (SBF). While inclusion of PDMS expectedly reduced scaffold modulus and strength, mineralization increased these properties and, in some cases, to values exceeding or similar to the PCL-DA, which did not mineralize.
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Affiliation(s)
- Felipe O Beltran
- Department of Materials Science and Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Christopher J Houk
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Melissa A Grunlan
- Department of Materials Science and Engineering, Texas A&M University, College Station, Texas 77843, United States.,Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843, United States.,Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
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4
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Abstract
Hydrogels are polymeric networks highly swollen with water. Because of their versatility and properties mimicking biological tissues, they are very interesting for biomedical applications. In this aim, the control of porosity is of crucial importance since it governs the transport properties and influences the fate of cells cultured onto or into the hydrogels. Among the techniques allowing for the elaboration of hydrogels, photopolymerization or photo-cross-linking are probably the most powerful and versatile synthetic routes. This Review aims at giving an overview of the literature dealing with photopolymerized hydrogels for which the generation or characterization of porosity is studied. First, the materials (polymers and photoinitiating systems) used for synthesizing hydrogels are presented. The different ways for generating porosity in the photopolymerized hydrogels are explained, and the characterization techniques allowing adequate study of the porosity are presented. Finally, some applications in the field of controlled release and tissue engineering are reviewed.
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Affiliation(s)
- Erwan Nicol
- Institut des Molécules et Matériaux du Mans (IMMM), UMR 6283 CNRS Le Mans Université, Avenue Olivier Messiaen, 72085 Cedex 9 Le Mans, France
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5
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Li N, Guo R, Zhang ZJ. Bioink Formulations for Bone Tissue Regeneration. Front Bioeng Biotechnol 2021; 9:630488. [PMID: 33614614 PMCID: PMC7892967 DOI: 10.3389/fbioe.2021.630488] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 01/13/2021] [Indexed: 12/11/2022] Open
Abstract
Unlike the conventional techniques used to construct a tissue scaffolding, three-dimensional (3D) bioprinting technology enables fabrication of a porous structure with complex and diverse geometries, which facilitate evenly distributed cells and orderly release of signal factors. To date, a range of cell-laden materials, such as natural or synthetic polymers, have been deployed by the 3D bioprinting technique to construct the scaffolding systems and regenerate substitutes for the natural extracellular matrix (ECM). Four-dimensional (4D) bioprinting technology has attracted much attention lately because it aims to accommodate the dynamic structural and functional transformations of scaffolds. However, there remain challenges to meet the technical requirements in terms of suitable processability of the bioink formulations, desired mechanical properties of the hydrogel implants, and cell-guided functionality of the biomaterials. Recent bioprinting techniques are reviewed in this article, discussing strategies for hydrogel-based bioinks to mimic native bone tissue-like extracellular matrix environment, including properties of bioink formulations required for bioprinting, structure requirements, and preparation of tough hydrogel scaffolds. Stimulus mechanisms that are commonly used to trigger the dynamic structural and functional transformations of the scaffold are analyzed. At the end, we highlighted the current challenges and possible future avenues of smart hydrogel-based bioink/scaffolds for bone tissue regeneration.
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Affiliation(s)
- Na Li
- School of Chemical Engineering, University of Birmingham, Birmingham, United Kingdom
| | - Rui Guo
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Guangdong Provincial Engineering and Technological Research Centre for Drug Carrier Development, Department of Biomedical Engineering, Jinan University, Guangzhou, China
| | - Zhenyu Jason Zhang
- School of Chemical Engineering, University of Birmingham, Birmingham, United Kingdom
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Li J, Jia X, Yin L. Hydrogel: Diversity of Structures and Applications in Food Science. FOOD REVIEWS INTERNATIONAL 2021. [DOI: 10.1080/87559129.2020.1858313] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Jinlong Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing, P.R. China
- Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University, Beijing, P.R. China
| | - Xin Jia
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, P.R. China
| | - Lijun Yin
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, P.R. China
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Frassica MT, Demott CJ, Ramirez EM, Grunlan MA. Spatially Controlled Templated Hydrogels for Orthopedic Interfacial Tissue Regeneration. ACS Macro Lett 2020; 9:1740-1744. [PMID: 35653676 DOI: 10.1021/acsmacrolett.0c00712] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Scaffolds that recapitulate the spatial complexity of orthopedic interfacial tissues are essential to their regeneration. This requires a method to readily and flexibly produce scaffolds with spatial control over physical and chemical properties, without resulting in hard interfaces. Herein, we produced hydrogel scaffolds with spatially tunable arrangements and chemistries (SSTACs). Using solvent-induced phase separation/fused salt templating (SIPS/salt), scaffold elements are initially prepared with a tunable pore size and with one or more UV-reactive macromers. After trimming to the desired dimensions, these are physically configured and fused together to form the SSTACs. Using this method, three SSTAC designs were prepared, including one that mimicked the osteochondral interface. Bright-field/fluorescent microscopy revealed spatial control of pore size and chemical composition across a relatively smooth and integrated interface, regardless of layer composition. An interface formed by a SSTAC was determined to withstand a similar shear force to an analogous scaffold with no interface.
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Affiliation(s)
- Michael T. Frassica
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843-2120, United States
| | - Connor J. Demott
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843-2120, United States
| | - Esteban M. Ramirez
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843-2120, United States
| | - Melissa A. Grunlan
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843-2120, United States
- Department of Materials Science & Engineering, Texas A&M University, College Station, Texas 77843-3003, United States
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, United States
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8
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Frassica MT, Jones SK, Suriboot J, Arabiyat AS, Ramirez EM, Culibrk RA, Hahn MS, Grunlan MA. Enhanced Osteogenic Potential of Phosphonated-Siloxane Hydrogel Scaffolds. Biomacromolecules 2020; 21:5189-5199. [DOI: 10.1021/acs.biomac.0c01293] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Michael T. Frassica
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843-3120, United States
| | - Sarah K. Jones
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843-3120, United States
| | - Jakkrit Suriboot
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843-3120, United States
| | - Ahmad S. Arabiyat
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180-31590, United States
| | - Esteban M. Ramirez
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843-3120, United States
| | - Robert A. Culibrk
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180-31590, United States
| | - Mariah S. Hahn
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180-31590, United States
| | - Melissa A. Grunlan
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843-3120, United States
- Department of Materials Science & Engineering, Texas A&M University, College Station, Texas 77843-3003, United States
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, United States
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9
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Incorporation of a silicon-based polymer to PEG-DA templated hydrogel scaffolds for bioactivity and osteoinductivity. Acta Biomater 2019; 99:100-109. [PMID: 31536841 DOI: 10.1016/j.actbio.2019.09.018] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 08/26/2019] [Accepted: 09/12/2019] [Indexed: 12/28/2022]
Abstract
A scaffold that is inherently bioactive, osteoinductive and osteoconductive may guide mesenchymal stem cells (MSCs) to regenerate bone tissue in the absence of exogenous growth factors. Previously, we established that hydrogel scaffolds formed by crosslinking methacrylated star poly(dimethylsiloxane) (PDMSstar-MA) with diacrylated poly(ethylene glycol) (PEG-DA) promote bone bonding by induction of hydroxyapatite formation ("bioactive") and promote MSC lineage progression toward osteoblast-like fate ("osteoinductive"). Herein, we have combined solvent induced phase separation (SIPS) with a fused salt template to create PDMSstar-PEG hydrogel scaffolds with controlled PDMSstar-MA distribution as well as interconnected macropores of a tunable size to allow for subsequent cell seeding and neotissue infiltration ("osteoconductive"). Scaffolds were prepared with PDMSstar-MA of two number average molecular weights (Mns) (2k and 7k) with varying PDMSstar-MA:PEG-DA ratios and template salt sizes. The distribution of PDMSstar-MA within the hydrogels was examined as well as pore size, percent interconnectivity, dynamic and static moduli, hydration, degradation and in vitro bioactivity (i.e. mineralization when exposed to simulated body fluid, SBF). Finally, cell culture with seeded human bone marrow-derived MSCs (hBMSCs) was used to confirm non-cytotoxicity and characterize osteoinductivity. Tunable, interconnected macropores were achieved by utilization of a fused salt template of a specified salt size during fabrication. Distribution of PDMSstar-MA within the PEG-DA matrix improved for the lower Mn and contributed to differences in specific material properties (e.g. local modulus) and cellular response. However, all templated SIPS PDMSstar-PEG hydrogels were confirmed to be bioactive, non-cytotoxic and displayed PDMSstar-MA dose-dependent osteogenesis. STATEMENT OF SIGNIFICANCE: A tissue engineering scaffold that can inherently guide mesenchymal stem cells (MSCs) to regenerate bone tissue without growth factors would be a more cost-effective and safe strategy for bone repair. Typically, glass/ceramic fillers are utilized to achieve this through their ability to induce hydroxyapatite formation ("bioactive") and promote MSC differentiation to an osteoblast-like fate ("osteoinductive"). Herein, we have fabricated an interconnected, macroporous PEG-DA hydrogel scaffold that utilizes PDMSstar-MA as a bioactive and osteoinductive scaffold component. We were able to show that these PDMSstar-PEG hydrogels maintain several key material characteristics for bone repair. Further, bioactivity and osteoinductivity were simultaneously achieved in human bone marrow-derived MSC culture, representing a notable achievement for an exclusively material-based strategy.
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10
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Frassica MT, Jones SK, Diaz-Rodriguez P, Hahn MS, Grunlan MA. Incorporation of a silicon-based polymer to PEG-DA templated hydrogel scaffolds for bioactivity and osteoinductivity. Acta Biomater 2019. [PMID: 31536841 DOI: 10.1016/j.actbio.2019.09.018.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/01/2022]
Abstract
A scaffold that is inherently bioactive, osteoinductive and osteoconductive may guide mesenchymal stem cells (MSCs) to regenerate bone tissue in the absence of exogenous growth factors. Previously, we established that hydrogel scaffolds formed by crosslinking methacrylated star poly(dimethylsiloxane) (PDMSstar-MA) with diacrylated poly(ethylene glycol) (PEG-DA) promote bone bonding by induction of hydroxyapatite formation ("bioactive") and promote MSC lineage progression toward osteoblast-like fate ("osteoinductive"). Herein, we have combined solvent induced phase separation (SIPS) with a fused salt template to create PDMSstar-PEG hydrogel scaffolds with controlled PDMSstar-MA distribution as well as interconnected macropores of a tunable size to allow for subsequent cell seeding and neotissue infiltration ("osteoconductive"). Scaffolds were prepared with PDMSstar-MA of two number average molecular weights (Mns) (2k and 7k) with varying PDMSstar-MA:PEG-DA ratios and template salt sizes. The distribution of PDMSstar-MA within the hydrogels was examined as well as pore size, percent interconnectivity, dynamic and static moduli, hydration, degradation and in vitro bioactivity (i.e. mineralization when exposed to simulated body fluid, SBF). Finally, cell culture with seeded human bone marrow-derived MSCs (hBMSCs) was used to confirm non-cytotoxicity and characterize osteoinductivity. Tunable, interconnected macropores were achieved by utilization of a fused salt template of a specified salt size during fabrication. Distribution of PDMSstar-MA within the PEG-DA matrix improved for the lower Mn and contributed to differences in specific material properties (e.g. local modulus) and cellular response. However, all templated SIPS PDMSstar-PEG hydrogels were confirmed to be bioactive, non-cytotoxic and displayed PDMSstar-MA dose-dependent osteogenesis. STATEMENT OF SIGNIFICANCE: A tissue engineering scaffold that can inherently guide mesenchymal stem cells (MSCs) to regenerate bone tissue without growth factors would be a more cost-effective and safe strategy for bone repair. Typically, glass/ceramic fillers are utilized to achieve this through their ability to induce hydroxyapatite formation ("bioactive") and promote MSC differentiation to an osteoblast-like fate ("osteoinductive"). Herein, we have fabricated an interconnected, macroporous PEG-DA hydrogel scaffold that utilizes PDMSstar-MA as a bioactive and osteoinductive scaffold component. We were able to show that these PDMSstar-PEG hydrogels maintain several key material characteristics for bone repair. Further, bioactivity and osteoinductivity were simultaneously achieved in human bone marrow-derived MSC culture, representing a notable achievement for an exclusively material-based strategy.
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Affiliation(s)
- Michael T Frassica
- Department of Biomedical Engineering, Texas A&M University, College Station, TX 77843-3120, USA
| | - Sarah K Jones
- Department of Biomedical Engineering, Texas A&M University, College Station, TX 77843-3120, USA
| | - Patricia Diaz-Rodriguez
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180-31590, USA
| | - Mariah S Hahn
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180-31590, USA
| | - Melissa A Grunlan
- Department of Biomedical Engineering, Texas A&M University, College Station, TX 77843-3120, USA; Department of Materials Science & Engineering, Texas A&M University, College Station, TX 77843-3003, USA; Department of Chemistry, Texas A&M University, College Station, TX 77843-3255, USA.
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11
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Diaz-Rodriguez P, Erndt-Marino JD, Gharat T, Munoz Pinto DJ, Samavedi S, Bearden R, Grunlan MA, Saunders WB, Hahn MS. Toward zonally tailored scaffolds for osteochondral differentiation of synovial mesenchymal stem cells. J Biomed Mater Res B Appl Biomater 2019; 107:2019-2029. [PMID: 30549205 PMCID: PMC6934364 DOI: 10.1002/jbm.b.34293] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 10/22/2018] [Accepted: 11/10/2018] [Indexed: 12/15/2022]
Abstract
Synovium-derived mesenchymal stem cells (SMSCs) are an emerging cell source for regenerative medicine applications, including osteochondral defect (OCD) repair. However, in contrast to bone marrow MSCs, scaffold compositions which promote SMSC chondrogenesis/osteogenesis are still being identified. In the present manuscript, we examine poly(ethylene) glycol (PEG)-based scaffolds containing zonally-specific biochemical cues to guide SMSC osteochondral differentiation. Specifically, SMSCs were encapsulated in PEG-based scaffolds incorporating glycosaminoglycans (hyaluronan or chondroitin-6-sulfate [CSC]), low-dose of chondrogenic and osteogenic growth factors (TGFβ1 and BMP2, respectively), or osteoinductive poly(dimethylsiloxane) (PDMS). Initial studies suggested that PEG-CSC-TGFβ1 scaffolds promoted enhanced SMSC chondrogenic differentiation, as assessed by significant increases in Sox9 and aggrecan. Conversely, PEG-PDMS-BMP2 scaffolds stimulated increased levels of osteoblastic markers with significant mineral deposition. A "Transition" zone formulation was then developed containing a graded mixture of the chondrogenic and osteogenic signals present in the PEG-CSC-TGFβ1 and PEG-PDMS-BMP2 constructs. SMSCs within the "Transition" formulation displayed a phenotypic profile similar to hypertrophic chondrocytes, with the highest expression of collagen X, intermediate levels of osteopontin, and mineralization levels equivalent to "bone" formulations. Overall, these results suggest that a graded transition from PEG-CSC-TGFβ1 to PEG-PDMS-BMP2 scaffolds elicits a gradual SMSC phenotypic shift from chondrocyte to hypertrophic chondrocyte to osteoblast-like. As such, further development of these scaffold formulations for use in SMSC-based OCD repair is warranted. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 107B: 2019-2029, 2019.
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Affiliation(s)
| | - Josh D Erndt-Marino
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York
| | - Tanmay Gharat
- Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York
| | - Dany J Munoz Pinto
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York
| | - Satyavrata Samavedi
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York
| | - Robert Bearden
- Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas
| | - Melissa A Grunlan
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas
| | - W Brian Saunders
- Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas
| | - Mariah S Hahn
- Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York
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12
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Facile fabrication of superporous and biocompatible hydrogel scaffolds for artificial corneal periphery. Colloids Surf B Biointerfaces 2019; 175:26-35. [DOI: 10.1016/j.colsurfb.2018.11.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 10/04/2018] [Accepted: 11/06/2018] [Indexed: 12/18/2022]
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13
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Kamaldinov T, Erndt-Marino J, Diaz-Rodriguez P, Chen H, Gharat T, Munoz-Pinto D, Arduini B, Hahn MS. Tuning Forkhead Box D3 overexpression to promote specific osteogenic differentiation of human embryonic stem cells while reducing pluripotency in a three-dimensional culture system. J Tissue Eng Regen Med 2018; 12:2256-2265. [PMID: 30350469 DOI: 10.1002/term.2757] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 08/15/2018] [Accepted: 10/18/2018] [Indexed: 12/15/2022]
Abstract
Clinical use of human embryonic stem cells (hESCs) in bone regeneration applications requires that their osteogenic differentiation be highly controllable as well as time- and cost-effective. The main goals of the current work were thus (a) to assess whether overexpression of pluripotency regulator Forkhead Box D3 (FOXD3) can enhance the osteogenic commitment of hESCs seeded in three-dimensional (3D) scaffolds and (b) to evaluate if the degree of FOXD3 overexpression regulates the strength and specificity of hESC osteogenic commitment. In conducting these studies, an interpenetrating hydrogel network consisting of poly(ethylene glycol) diacrylate and collagen I was utilized as a 3D culture platform. Expression of osteogenic, chondrogenic, pluripotency, and germ layer markers by encapsulated hESCs was measured after 2 weeks of culture in osteogenic medium in the presence or absence doxycycline-induced FOXD3 transgene expression. Towards the first goal, FOXD3 overexpression initiated 24 hr prior to hESC encapsulation, relative to unstimulated controls, resulted in upregulation of osteogenic markers and enhanced calcium deposition, without promoting off-target effects. However, when initiation of FOXD3 overexpression was increased from 24 to 48 hr prior to encapsulation, hESC osteogenic commitment was not further enhanced and off-target effects were noted. Specifically, relative to 24-hr prestimulation, initiation of FOXD3 overexpression 48 hr prior to encapsulation yielded increased expression of pluripotency markers while reducing mesodermal but increasing endodermal germ layer marker expression. Combined, the current results indicate that the controlled overexpression of FOXD3 warrants further investigation as a mechanism to guide enhanced hESC osteogenic commitment.
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Affiliation(s)
- Timothy Kamaldinov
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York
| | - Josh Erndt-Marino
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York
| | | | - Hongyu Chen
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York
| | - Tanmay Gharat
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York
| | - Dany Munoz-Pinto
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York
| | - Brigitte Arduini
- Rensselaer Center for Stem Cell Research, Rensselaer Polytechnic Institute, Troy, New York
| | - Mariah S Hahn
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York
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Gharat TP, Diaz-Rodriguez P, Erndt-Marino JD, Jimenez Vergara AC, Munoz Pinto DJ, Bearden RN, Huggins SS, Grunlan M, Saunders WB, Hahn MS. A canine in vitro model for evaluation of marrow-derived mesenchymal stromal cell-based bone scaffolds. J Biomed Mater Res A 2018; 106:2382-2393. [PMID: 29633508 PMCID: PMC6158043 DOI: 10.1002/jbm.a.36430] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 02/18/2018] [Accepted: 03/28/2018] [Indexed: 12/23/2022]
Abstract
Tissue engineered bone grafts based on bone marrow mesenchymal stromal cells (MSCs) are being actively developed for craniomaxillofacial (CMF) applications. As for all tissue engineered implants, the bone-regenerating capacity of these MSC-based grafts must first be evaluated in animal models prior to human trials. Canine models have traditionally resulted in improved clinical translation of CMF grafts relative to other animal models. However, the utility of canine CMF models for evaluating MSC-based bone grafts rests on canine MSCs (cMSCs) responding in a similar manner to scaffold-based stimuli as human MSCs (hMSCs). Herein, cMSC and hMSC responses to polyethylene glycol (PEG)-based scaffolds were therefore compared in the presence or absence of osteoinductive polydimethylsiloxane (PDMS). Notably, the conjugation of PDMS to PEG-based constructs resulted in increases in both cMSC and hMSC osteopontin and calcium deposition. Based on these results, cMSCs were further used to assess the efficacy of tethered bone morphogenic protein 2 (BMP2) in enhancing PEG-PDMS scaffold osteoinductivity. Addition of low doses of tethered BMP2 (100 ng/mL) to PEG-PDMS systems increased cMSC expression of osterix and osteopontin compared to both PEG-PDMS and PEG-BMP2 controls. Furthermore, these increases were comparable to effects seen with up to five-times higher BMP2 doses noted in literature. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A:2382-2393, 2018.
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Affiliation(s)
- Tanmay P. Gharat
- Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York, USA
| | | | - Josh D. Erndt-Marino
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York, USA
| | | | - Dany J. Munoz Pinto
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York, USA
| | - Robert N. Bearden
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - Shannon S. Huggins
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - Melissa Grunlan
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas, USA
| | - W. Brian Saunders
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - Mariah S. Hahn
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York, USA
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15
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Arokiaraj MC, De Beule M, De Santis G. A novel sax-stent method in treatment of ascending aorta and aortic arch aneurysms evaluated by finite element simulations. JOURNAL DE MÉDECINE VASCULAIRE 2017; 42:39-45. [PMID: 28705446 DOI: 10.1016/j.jdmv.2017.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Accepted: 11/25/2016] [Indexed: 10/19/2022]
Abstract
OBJECTIVES A novel stent method to simplify treatment of proximal ascending aorta and aortic arch aneurysms was developed and investigated by finite element analysis. Therapy of ascending aortic and aortic arch aneurysms is difficult and challenging and is associated with various complications. METHODS A 55mm wide×120mm long stent was designed without the stent graft and the stent was deployed by an endovascular method in a virtual patient-specific aneurysm model. The stress-strain analysis and deployment characteristics were performed in a finite element analysis using the Abaqus software. RESULTS The stent, when embedded in the aortic wall, significantly reduced aortic wall stresses, while preserving the side coronary ostia and side branches in the aortic arch. When tissue growth was modeled computationally over the stent struts the wall stresses in aorta was reduced. This effect became more pronounced when increasing the thickness of the tissue growth. There were no abnormal stresses in the aorta, coronary ostium and at the origin of aortic branches. The stent reduced aneurysm expansion cause by hypertensive condition from 2mm without stenting to 1.3mm after stenting and embedding. CONCLUSION In summary, we uncovered a simple treatment method using a bare nitinol stent without stent graft in the treatment of the proximal aorta and aortic arch aneurysms, which could eventually replace the complex treatment methods for this disease.
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Affiliation(s)
- M C Arokiaraj
- Cardiology, Pondicherry institute of medical sciences, 605014 Pondicherry, India.
| | - M De Beule
- FEops nv, Technologiepark 3, IBiTech-bioMMeda, University of Ghent (UGent), 9000 Gent, Belgium
| | - G De Santis
- FEops nv, Technologiepark 3, IBiTech-bioMMeda, University of Ghent (UGent), 9000 Gent, Belgium
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16
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McGann CL, Akins RE, Kiick KL. Resilin-PEG Hybrid Hydrogels Yield Degradable Elastomeric Scaffolds with Heterogeneous Microstructure. Biomacromolecules 2016; 17:128-40. [PMID: 26646060 PMCID: PMC4850080 DOI: 10.1021/acs.biomac.5b01255] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Hydrogels derived from resilin-like polypeptides (RLPs) have shown outstanding mechanical resilience and cytocompatibility; expanding the versatility of RLP-based materials via conjugation with other polypeptides and polymers would offer great promise in the design of a range of materials. Here, we present an investigation of the biochemical and mechanical properties of hybrid hydrogels composed of a recombinant RLP and a multiarm PEG macromer. These hybrid hydrogels can be rapidly cross-linked through a Michael-type addition reaction between the thiols of cysteine residues on the RLP and vinyl sulfone groups on the multiarm PEG. Oscillatory rheology and tensile testing confirmed the formation of elastomeric hydrogels with mechanical resilience comparable to aortic elastin; hydrogel stiffness was easily modulated through the cross-linking ratio. Macromolecular phase separation of the RLP-PEG hydrogels offers the unique advantage of imparting a heterogeneous microstructure, which can be used to localize cells, through simple mixing and cross-linking. Assessment of degradation of the RLP by matrix metalloproteinases (MMPs) illustrated the specific proteolysis of the polypeptide in both its soluble form and when cross-linked into hydrogels. Finally, the successful encapsulation and viable three-dimensional culture of human mesenchymal stem cells (hMSCs) demonstrated the cytocompatibility of the RLP-PEG gels. Overall, the cytocompatibility, elastomeric mechanical properties, microheterogeneity, and degradability of the RLP-PEG hybrid hydrogels offer a suite of promising properties for the development of cell-instructive, structured tissue engineering scaffolds.
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Affiliation(s)
- Christopher L. McGann
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Robert E. Akins
- Nemours – Alfred I. duPont Hospital for Children, Department of Biomedical Research, Wilmington, DE 19803, United States
| | - Kristi L. Kiick
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware 19716, United States
- Department of Biomedical Engineering, University of Delaware, Newark, Delaware 19716, United States
- Delaware Biotechnology Institute, 15 Innovation Way, Newark, Delaware 19711, United States
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18
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Wang L, Ding Y. Creating micro-structured hydrogel-forming polymer films by photopolymerization in an evaporating solvent: Compositional and morphological evolutions. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.01.048] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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19
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Xu J, Yang P, Zhang L, Huo G. Radical/Addition polymerization silicone hydrogels with simultaneous interpenetrating hydrophilic/hydrophobic networks. J Appl Polym Sci 2014. [DOI: 10.1002/app.41399] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jinku Xu
- Shandong Provincial Key Laboratory of Fine Chemical, School of Chemistry and Pharmaceutical Engineering; Qilu University of Technology; Jinan 250353 China
- Key Laboratory of Bioresources Protection and Utilization of Nanchang, School of Bioscience and Bioengineering; Jiangxi Agricultural University; Nanchang 330045 China
| | - Pengfei Yang
- Shandong Provincial Key Laboratory of Fine Chemical, School of Chemistry and Pharmaceutical Engineering; Qilu University of Technology; Jinan 250353 China
| | - Leilei Zhang
- Shandong Provincial Key Laboratory of Fine Chemical, School of Chemistry and Pharmaceutical Engineering; Qilu University of Technology; Jinan 250353 China
| | - Guanghua Huo
- Key Laboratory of Bioresources Protection and Utilization of Nanchang, School of Bioscience and Bioengineering; Jiangxi Agricultural University; Nanchang 330045 China
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Islam MR, Gao Y, Li X, Zhang QM, Wei M, Serpe MJ. Stimuli-responsive polymeric materials for human health applications. ACTA ACUST UNITED AC 2014. [DOI: 10.1007/s11434-014-0545-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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21
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Finite element modeling of a novel self-expanding endovascular stent method in treatment of aortic aneurysms. Sci Rep 2014; 4:3630. [PMID: 24406869 PMCID: PMC3887389 DOI: 10.1038/srep03630] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Accepted: 12/12/2013] [Indexed: 01/07/2023] Open
Abstract
A novel large self-expanding endovascular stent was designed with strut thickness of 70 μm × 70 μm width. The method was developed and investigated to identify a novel simpler technique in aortic aneurysm therapy. Stage 1 analysis was performed after deploying it in a virtual aneurysm model of 6 cm wide × 6 cm long fusiform hyper-elastic anisotropic design. At cell width of 9 mm, there was no buckling or migration of the stent at 180 Hg. Radial force of the stents was estimated after parametric variations. In stage 2 analysis, a prototype 300 μm × 150 μm stent with a cell width of 9 mm was chosen, and it was evaluated similarly after embedding in the aortic wall, and also with a tissue overgrowth of 1 mm over the stent. The 300/150 μm stent reduced the peak wall stress by 70% in the aneurysm and 50% reduction in compliance after embedding. Stage 3 analysis was performed to study the efficacy of stents with struts (thickness/width) 70/70, 180/100 and 300/150 μm after embedding and tissue overgrowth. The adjacent wall stresses were very minimal in stents with 180/100 and 70/70 μm struts after embedding. There is potential for a novel stent method in aortic aneurysm therapy.
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Xu J, Zhang L, Zhang Y, Li T, Huo G. Simultaneous interpenetrating silicone hydrogel based on radical/addition polymerization for extended release of ocular therapeutics. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2013; 25:121-35. [DOI: 10.1080/09205063.2013.841793] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Bailey BM, Nail LN, Grunlan MA. Continuous gradient scaffolds for rapid screening of cell-material interactions and interfacial tissue regeneration. Acta Biomater 2013; 9:8254-61. [PMID: 23707502 DOI: 10.1016/j.actbio.2013.05.012] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2013] [Revised: 04/21/2013] [Accepted: 05/15/2013] [Indexed: 11/28/2022]
Abstract
In tissue engineering, the physical and chemical properties of the scaffold mediates cell behavior, including regeneration. Thus a strategy that permits rapid screening of cell-scaffold interactions is critical. Herein, we have prepared eight "hybrid" hydrogel scaffolds in the form of continuous gradients such that a single scaffold contains spatially varied properties. These scaffolds are based on combining an inorganic macromer (methacrylated star polydimethylsiloxane, PDMSstar-MA) and organic macromer (poly(ethylene glycol)diacrylate, PEG-DA) as well as both aqueous and organic fabrication solvents. Having previously demonstrated its bioactivity and osteoinductivity, PDMSstar-MA is a particularly powerful component to incorporate into instructive gradient scaffolds based on PEG-DA. The following parameters were varied to produce the different gradients or gradual transitions in: (1) the wt.% ratio of PDMSstar-MA to PEG-DA macromers, (2) the total wt.% macromer concentration, (3) the number average molecular weight (Mn) of PEG-DA and (4) the Mn of PDMSstar-MA. Upon dividing each scaffold into four "zones" perpendicular to the gradient, we were able to demonstrate the spatial variation in morphology, bioactivity, swelling and modulus. Among these gradient scaffolds are those in which swelling and modulus are conveniently decoupled. In addition to rapid screening of cell-material interactions, these scaffolds are well suited for regeneration of interfacial tissues (e.g. osteochondral tissues) that transition from one tissue type to another.
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Affiliation(s)
- Brennan M Bailey
- Department of Biomedical Engineering, Texas A&M University, College Station, TX 77843-3120, USA
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Xiao-lin Y, Yin Y, Xu-dong S, Ni J, Zhi-hua G. FABRICATION OF POLY(BUTYLENE ADIPATE) NANOFIBEROUS MICROSPHERES. ACTA POLYM SIN 2013. [DOI: 10.3724/sp.j.1105.2013.13043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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25
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Gnanaprakasam Thankam F, Muthu J. Influence of plasma protein–hydrogel interaction moderated by absorption of water on long-term cell viability in amphiphilic biosynthetic hydrogels. RSC Adv 2013. [DOI: 10.1039/c3ra43710h] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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