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Ma J, Huang C. Composition and Mechanism of Three-Dimensional Hydrogel System in Regulating Stem Cell Fate. TISSUE ENGINEERING. PART B, REVIEWS 2020; 26:498-518. [PMID: 32272868 DOI: 10.1089/ten.teb.2020.0021] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Three-dimensional (3D) hydrogel systems integrating different types of stem cells and scaffolding biomaterials have an important application in tissue engineering. The biomimetic hydrogels that pattern cell suspensions within 3D configurations of biomaterial networks allow for the transport of bioactive factors and mimic the stem cell niche in vivo, thereby supporting the proliferation and differentiation of stem cells. The composition of a 3D hydrogel system determines the physical and chemical characteristics that regulate stem cell function through a biological mechanism. Here, we discuss the natural and synthetic hydrogel compositions that have been employed in 3D scaffolding, focusing on their characteristics, fabrication, biocompatibility, and regulatory effects on stem cell proliferation and differentiation. We also discuss the regulatory mechanisms of cell-matrix interaction and cell-cell interaction in stem cell activities in various types of 3D hydrogel systems. Understanding hydrogel compositions and their cellular mechanisms can yield insights into how scaffolding biomaterials and stem cells interact and can lead to the development of novel hydrogel systems of stem cells in tissue engineering and stem cell-based regenerative medicine. Impact statement Three-dimensional hydrogel system of stem cell mimicking the stemcell niche holds significant promise in tissue engineering and regenerative medicine. Exactly how hydrogel composition regulates stem cell fate is not well understood. This review focuses on the composition of hydrogel, and how the hydrogel composition and its properties regulate the stem cell adhesion, growth, and differentiation. We propose that cell-matrix interaction and cell-cell interaction are important regulatory mechanisms in stem cell activities. Our review provides key insights into how the hydrogel composition regulates the stem cell fate, untangling the engineering of three-dimensional hydrogel systems for stem cells.
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Affiliation(s)
- Jianrui Ma
- Center for Neurobiology, Shantou University Medical College, Shantou, China
| | - Chengyang Huang
- Center for Neurobiology, Shantou University Medical College, Shantou, China
- Department of Biological Chemistry, Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research, David Geffen School of Medicine, University of California at Los Angeles (UCLA), Los Angeles, California, USA
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Ahmadi M, Mehdikhani M, Varshosaz J, Farsaei S, Torabi H. Pharmaceutical evaluation of atorvastatin-loaded nanostructured lipid carriers incorporated into the gelatin/hyaluronic acid/polycaprolactone scaffold for the skin tissue engineering. J Biomater Appl 2020; 35:958-977. [PMID: 33148109 DOI: 10.1177/0885328220970760] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
In this study, gelatin/hyaluronic acid (HA) scaffolds containing different amounts of atorvastatin-loaded nanostructured lipid carriers (NLCs) coated entirely with polycaprolactone (PCL) film were fabricated for skin regeneration. 12 atorvastatin-loaded NLCs formulations were synthesized, and particle size, zeta potential, drug entrapment efficiency (EE), and drug release of the formulations were determined. The optimum freeze-dried atorvastatin-loaded NLCs were added in 3 different weight percentages to the gelatin and HA membranous scaffolds. Thereafter, the membranes were coated entirely by a thin layer of the PCL. They were characterized, and then mechanical properties, in vitro degradation and in vitro drug release were assessed. Moreover, human dermal fibroblasts (HDF) were cultured on the prepared nanocomposite scaffolds in order to investigate the cytotoxicity by the MTT assay after the first day, third day, and fifth day. Results revealed that the most favorable atorvastatin-loaded NLCs had 99.54 nm average particle size, -24.30 mV zeta potential, 97.98% EE, and 75.24% drug release within 237 hrs. Mechanical tests indicated that all the three scaffolds had approximately a 90 MPa elastic modulus which was more than two-fold of tensile modulus of normal human skin. The in vitro degradation test demonstrated that the membranes were degraded up to 98% after 5 days, and the scaffolds drug release efficiency (DRE) was in a range of 75-79% during those 5 days. The MTT assay results confirmed the cytocompatibility of the scaffolds. The scaffold containing 54.1 wt% NCLs was the optimum sample (S3). Scanning Electron Microscopy (SEM) images of the latter one showed the uniform distribution of the NLCs with an average size of 150 nm, and the images of cultured HDF illustrated the good cell attachment. In conclusion, suitable physicochemical and biological properties of the novel gelatin/HA/PCL nanocomposite scaffold containing 54.1 wt% atorvastatin-loaded NLCs (S3) can be a good candidate for skin regeneration.
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Affiliation(s)
- Mahsa Ahmadi
- Department of Biomedical Engineering, Faculty of Engineering, University of Isfahan, Isfahan, Islamic Republic of Iran
| | - Mehdi Mehdikhani
- Department of Biomedical Engineering, Faculty of Engineering, University of Isfahan, Isfahan, Islamic Republic of Iran
| | - Jaleh Varshosaz
- Novel Drug Delivery Systems Research Center, Isfahan University of Medical Sciences, Isfahan, Islamic Republic of Iran
| | - Shadi Farsaei
- Department of Clinical Pharmacy and Pharmacy Practice, School of Pharmacy, Isfahan University of Medical Sciences, Isfahan, Islamic Republic of Iran
| | - Hadis Torabi
- University of Isfahan, Isfahan, Islamic Republic of Iran
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Solis MA, Wei YH, Chang CH, Yu CH, Huang LLH. Hyaluronan Induces a Mitochondrial Functional Switch in Fast-Proliferating Human Mesenchymal Stem. Int J Stem Cells 2020; 13:151-162. [PMID: 31910510 PMCID: PMC7119204 DOI: 10.15283/ijsc19004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Revised: 03/23/2019] [Accepted: 04/21/2019] [Indexed: 11/09/2022] Open
Abstract
Background and Objectives Hyaluronan preserves the proliferation and differentiation potential of mesenchymal stem cells. Supplementation of low-concentration hyaluronan (SHA) in stem cells culture medium increases its proliferative rate, whereas coated-surface hyaluronan (CHA) maintains cells in a slow-proliferating mode. We have previously demonstrated that in CHA, the metabolic proliferative state of stem cells was influenced by upregulating mitochondrial biogenesis and function. However, the effect of SHA on stem cells' energetic status remains unknown. In this study, we demonstrate the effect that low-concentration SHA at 0.001 mg/ml (SHA0.001) and high-concentration SHA at 5 mg/ml (SHA5) exert on stem cells' mitochondrial function compared with CHA and noncoated tissue culture surface (control). Methods and Results Fast-proliferating human placenta-derived mesenchymal stem cells (PDMSCs) cultured on SHA0.001 exhibited reduced mitochondrial mass, lower mitochondrial DNA copy number, and lower oxygen consumption rate compared with slow-proliferating PDMSCs cultured on CHA at 5.0 (CHA5) or 30 μg/cm2 (CHA30). The reduced mitochondrial biogenesis observed in SHA0.001 was accompanied by a 2-fold increased ATP content and lactate production, suggesting that hyaluronan-induced fast-proliferating PDMSCs may rely less on mitochondrial function as an energy source and induce a mitochondrial functional switch to glycolysis. Conclusions PDMSCs cultured on both CHA and SHA exhibited a reduction in reactive oxygen species levels. The results from this study clarify our understandings on the effect of hyaluronan on stem cells and provide important insights into the effect of distinct supplementation methods used during cell therapies.
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Affiliation(s)
- Mairim Alexandra Solis
- Gorgas Memorial Institute for Health Studies, Panama, Panama.,Department of Biotechnology and Bioindustry Sciences, National Cheng Kung University, Tainan, Taiwan
| | - Yau-Huei Wei
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan.,Department of Biochemistry and Molecular Biology, National Yang-Ming University, Taipei, Taiwan
| | - Chiung-Hsin Chang
- Department of Obstetrics and Gynecology, National Cheng Kung University, Tainan, Taiwan
| | - Chen-Hsiang Yu
- Department of Obstetrics and Gynecology, National Cheng Kung University, Tainan, Taiwan
| | - Lynn L H Huang
- Department of Biotechnology and Bioindustry Sciences, National Cheng Kung University, Tainan, Taiwan.,Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Research Center of Excellence in Regenerative Medicine, National Cheng Kung University, Tainan, Taiwan.,International Research Center of Wound Repair and Regeneration, National Cheng Kung University, Tainan, Taiwan
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Joddar B, Kumar SA, Kumar A. A Contact-Based Method for Differentiation of Human Mesenchymal Stem Cells into an Endothelial Cell-Phenotype. Cell Biochem Biophys 2018; 76:187-195. [PMID: 28942575 PMCID: PMC5866207 DOI: 10.1007/s12013-017-0828-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Accepted: 09/18/2017] [Indexed: 12/25/2022]
Abstract
Adult stem cells such as mesenchymal stem cells (MSC) are known to possess the ability to augment neovascularization processes and are thus widely popular as an autologous source of progenitor cells. However there is a huge gap in our current knowledge of mechanisms involved in differentiating MSC into endothelial cells (EC), essential for lining engineered blood vessels. To fill up this gap, we attempted to differentiate human MSC into EC, by culturing the former onto chemically fixed layers of EC or its ECM, respectively. We expected direct contact of MSC when cultured atop fixed EC or its ECM, would coax the former to differentiate into EC. Results showed that human MSC cultured atop chemically fixed EC or its ECM using EC-medium showed enhanced expression of CD31, a marker for EC, compared to other cases. Further in all human MSC cultured using EC-medium, typically characteristic cobble stone shaped morphologies were noted in comparison to cells cultured using MSC medium, implying that the differentiated cells were sensitive to soluble VEGF supplementation present in the EC-medium. Results will enhance and affect therapies utilizing autologous MSC as a cell source for generating vascular cells to be used in a variety of tissue engineering applications.
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Affiliation(s)
- Binata Joddar
- Department of Metallurgical, Materials and Biomedical Engineering, University of Texas at El Paso, 500 W University Avenue, El Paso, TX, 79968, USA.
- Border Biomedical Research Center, University of Texas at El Paso, 500W University Avenue, El Paso, TX, 79968, USA.
| | - Shweta Anil Kumar
- Department of Metallurgical, Materials and Biomedical Engineering, University of Texas at El Paso, 500 W University Avenue, El Paso, TX, 79968, USA
| | - Alok Kumar
- Department of Metallurgical, Materials and Biomedical Engineering, University of Texas at El Paso, 500 W University Avenue, El Paso, TX, 79968, USA
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Abdal Dayem A, Lee S, Y. Choi H, Cho SG. The Impact of Adhesion Molecules on the In Vitro Culture and Differentiation of Stem Cells. Biotechnol J 2018; 13:1700575. [DOI: 10.1002/biot.201700575] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
Affiliation(s)
- Ahmed Abdal Dayem
- Department of Stem Cell and Regenerative Biotechnology; Incurable Disease Animal Model and Stem Cell Institute (IDASI); Konkuk University; 120 Neungdong-ro Gwangjin-gu 05029 Seoul Republic of Korea
| | - Soobin Lee
- Department of Stem Cell and Regenerative Biotechnology; Incurable Disease Animal Model and Stem Cell Institute (IDASI); Konkuk University; 120 Neungdong-ro Gwangjin-gu 05029 Seoul Republic of Korea
| | - Hye Y. Choi
- Department of Stem Cell and Regenerative Biotechnology; Incurable Disease Animal Model and Stem Cell Institute (IDASI); Konkuk University; 120 Neungdong-ro Gwangjin-gu 05029 Seoul Republic of Korea
| | - Ssang-Goo Cho
- Department of Stem Cell and Regenerative Biotechnology; Incurable Disease Animal Model and Stem Cell Institute (IDASI); Konkuk University; 120 Neungdong-ro Gwangjin-gu 05029 Seoul Republic of Korea
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Azeem A, Marani L, Fuller K, Spanoudes K, Pandit A, Zeugolis D. Influence of Nonsulfated Polysaccharides on the Properties of Electrospun Poly(lactic-co-glycolic acid) Fibers. ACS Biomater Sci Eng 2016; 3:1304-1312. [DOI: 10.1021/acsbiomaterials.6b00206] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- A. Azeem
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, and ‡Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - L. Marani
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, and ‡Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - K. Fuller
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, and ‡Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - K. Spanoudes
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, and ‡Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - A. Pandit
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, and ‡Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - D.I. Zeugolis
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, and ‡Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
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Wu F, Li J, Zhang K, He Z, Yang P, Zou D, Huang N. Multifunctional Coating Based on Hyaluronic Acid and Dopamine Conjugate for Potential Application on Surface Modification of Cardiovascular Implanted Devices. ACS APPLIED MATERIALS & INTERFACES 2016; 8:109-121. [PMID: 26654689 DOI: 10.1021/acsami.5b07427] [Citation(s) in RCA: 92] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Surface modification by conjugating biomolecules has been widely proved to enhance biocompatibility of cardiovascular implanted devices. Here, we aimed at developing a multifunctional surface that not only provides good hemocompatibility but also functions well in inducing desirable vascular cell-material interaction. In the present work, the multicoatings of hyaluronic acid (HA) and dopamine (PDA) were prepared onto 316L stainless steel (316L SS) via chemical conjugation (Michael addition, Schiff base reaction, and electrostatic adsorption). The results of platelet adhesion and activation and the whole blood tests indicated that the HA/PDA coatings obtained better hemocompatibility compared with the bare 316L SS and HA or PDA immobilized on 316L SS. The HA/PDA coatings also inhibited the proliferation of smooth muscle cells and adhesion/activation of macrophages effectively, whereas not all the HA/PDA coatings improved surface endothelialization rapidly and the effects of the multifunctional coatings on endothelial cell growth depend on the HA amounts (1.0, 2.0, and 5.0 mg/mL, labeled as PDA-HA-1, PDA-HA-2, and PDA-HA-5 respectively). Herein the PDA-HA-1 and PDA-HA-2 coatings were found to improve endothelial cell adhesion and proliferation significantly. The tissue compatibility of the HA/PDA coatings also depends on the HA amounts, and the PDA-HA-2 coating was proved to cause milder in vivo tissue response. Additionally, the mechanism of the HA molecular weight change and in vivo tissue response was also explored. These results effectively suggested that the HA/PDA coating might be promising when serving as a cardiovascular implanted device coating.
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Affiliation(s)
- Feng Wu
- Key Lab. for Advanced Technologies of Materials, Ministry of Education, School of Material Science and Engineering, Southwest Jiaotong University , Chengdu 610031, PR China
| | - Jingan Li
- Key Lab. for Advanced Technologies of Materials, Ministry of Education, School of Material Science and Engineering, Southwest Jiaotong University , Chengdu 610031, PR China
| | - Kun Zhang
- Key Lab. for Advanced Technologies of Materials, Ministry of Education, School of Material Science and Engineering, Southwest Jiaotong University , Chengdu 610031, PR China
- School of Life Science, Zhengzhou University , 100 Science Road, Zhengzhou 450001, PR China
- Center of Stem Cell and Regenerative Medicine, First Affiliated Hospital of Zhengzhou University , 40 University Road, Zhengzhou 450052, PR China
| | - Zikun He
- Key Lab. for Advanced Technologies of Materials, Ministry of Education, School of Material Science and Engineering, Southwest Jiaotong University , Chengdu 610031, PR China
| | - Ping Yang
- Key Lab. for Advanced Technologies of Materials, Ministry of Education, School of Material Science and Engineering, Southwest Jiaotong University , Chengdu 610031, PR China
| | - Dan Zou
- Key Lab. for Advanced Technologies of Materials, Ministry of Education, School of Material Science and Engineering, Southwest Jiaotong University , Chengdu 610031, PR China
| | - Nan Huang
- Key Lab. for Advanced Technologies of Materials, Ministry of Education, School of Material Science and Engineering, Southwest Jiaotong University , Chengdu 610031, PR China
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Joddar B, Nishioka C, Takahashi E, Ito Y. Chemically fixed autologous feeder cell-derived niche for human induced pluripotent stem cell culture. J Mater Chem B 2015; 3:2301-2307. [DOI: 10.1039/c4tb01635a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A newer method of hiPS culture on feeder cell-derived niche is reported in this study.
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Affiliation(s)
- Binata Joddar
- Nano Medical Engineering Laboratory
- RIKEN
- Wako
- Japan
- Department of Mechanical Engineering & Biomedical Engineering Program at The University of Texas at El Paso
| | - Chieko Nishioka
- Support Unit for Animal Experiment
- Research Resources Center
- RIKEN Brain Science Institute
- Wako
- Japan
| | - Eiki Takahashi
- Support Unit for Animal Experiment
- Research Resources Center
- RIKEN Brain Science Institute
- Wako
- Japan
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9
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Woo HD, Lee HJ, Lee JW, Son TI. Injectable photoreactive azidophenyl hyaluronic acid hydrogels for tissue augmentation. Macromol Res 2014. [DOI: 10.1007/s13233-014-2069-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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10
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Lai CY, Wu PJ, Roffler SR, Lee ST, Hwang SM, Wang SS, Wang K, Hsieh PCH. Clearance kinetics of biomaterials affects stem cell retention and therapeutic efficacy. Biomacromolecules 2014; 15:564-73. [PMID: 24372561 DOI: 10.1021/bm401583b] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The use of biomaterial carriers to improve the therapeutic efficacy of stem cells is known to augment cell delivery, retention, and viability. However, the way that carrier clearance kinetics boosts stem cell delivery and impacts stem cell function remains poorly characterized. In this study, we designed a platform to simultaneously quantify carrier clearance and stem cell retention to evaluate the impact of carrier clearance kinetics on stem cell retention. Additionally, a murine model of hindlimb ischemia was employed to investigate the effects of various cell retention profiles on mitigating peripheral arterial disease. To image the in vivo behaviors of material and cells, we used biotinylated hyaluronan with fluorescently labeled streptavidin and Discosoma sp. Red (Ds-Red)-expressing human mesenchymal stem cells. We found that the retention of transplanted stem cells was closely related to the remaining biomaterial. Furthermore, therapeutic effectiveness was also affected by stem cell retention. These results demonstrate that low-molecular-weight hyaluronan had a slow clearance and high cell retention profile, improving the therapeutic efficacy of human stem cells.
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Affiliation(s)
- Chia Y Lai
- Institute of Biomedical Sciences, Academia Sinica , No. 128 Sec. 2, Academia Road, Taipei 115, Taiwan
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Joddar B, Guy AT, Kamiguchi H, Ito Y. Spatial gradients of chemotropic factors from immobilized patterns to guide axonal growth and regeneration. Biomaterials 2013; 34:9593-601. [DOI: 10.1016/j.biomaterials.2013.08.019] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Accepted: 08/07/2013] [Indexed: 01/31/2023]
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12
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Joddar B, Ito Y. Artificial niche substrates for embryonic and induced pluripotent stem cell cultures. J Biotechnol 2013; 168:218-28. [DOI: 10.1016/j.jbiotec.2013.04.021] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Revised: 04/13/2013] [Accepted: 04/29/2013] [Indexed: 01/27/2023]
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Kim M, Kim YH, Tae G. Human mesenchymal stem cell culture on heparin-based hydrogels and the modulation of interactions by gel elasticity and heparin amount. Acta Biomater 2013; 9:7833-44. [PMID: 23643605 DOI: 10.1016/j.actbio.2013.04.041] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2013] [Revised: 04/01/2013] [Accepted: 04/24/2013] [Indexed: 11/25/2022]
Abstract
Human adipose-derived stem cells (hADSCs) are a promising cell source for tissue engineering and regenerative medicine with no ethnical issue and easy access of large quantities. Conventional surfaces for hADSC culture, such as tissue culture plates (TCPs), do not provide optimal environmental cues, leading to limited expansion, loss of pluripotency and undesirable differentiation of stem cells. The present study demonstrated that heparin-based hydrogels without additional modification provided an excellent surface for adhesion and proliferation of hADSCs, which were further tunable by both the amount of heparin (in a positive way) and the elasticity of hydrogel (in a negative way). The optimized heparin-based hydrogel could selectively modulate the adhesion of hADSCs and human bone marrow stem cells (but not all kinds of cells), and resulted in a significant increase in cell proliferation compared to TCP. Furthermore, in terms of the maintenance of pluripotency and specific differentiation, heparin-based hydrogel was much superior to TCP. The selective binding and proliferation of human mesenchymal stem cells on heparin-based hydrogel over other hydrogels were largely mediated by integrin β1 and selectin, and these superior characteristics were observed regardless of the presence of serum proteins in the culture medium. Consequently, heparin-based hydrogel could be a powerful platform for cultivation of mesenchymal stem cells in various applications.
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Sivakumar PM, Zhou D, Son TI, Ito Y. Design and Synthesis of Photoreactive Polymers for Biomedical Applications. Biomimetics (Basel) 2013. [DOI: 10.1002/9781118810408.ch11] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
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Gabriel D, Dvir T, Kohane DS. Delivering bioactive molecules as instructive cues to engineered tissues. Expert Opin Drug Deliv 2013; 9:473-92. [PMID: 22432691 DOI: 10.1517/17425247.2012.668521] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
INTRODUCTION Growth factors and other bioactive molecules play a crucial role in the creation of functional engineered tissues from dissociated cells. AREAS COVERED This review discusses the delivery of bioactive molecules - particularly growth factors - to affect cellular function in the context of tissue engineering. We discuss the primary biological themes that are addressed by delivering bioactives, the types of molecules that are to be delivered, the major materials used in producing scaffolds and/or drug delivery systems, and the principal drug delivery strategies. EXPERT OPINION Drug delivery systems have allowed the sustained release of bioactive molecules to engineered tissues, with marked effects on tissue function. Sophisticated drug delivery techniques will allow precise recapitulation of developmental milestones by providing temporally distinct patterns of release of multiple bioactives. High-resolution patterning techniques will allow tissue constructs to be designed with precisely defined areas where bioactives can act. New biological discoveries, just as the development of small molecules with potent effects on cell differentiation, will likely have a marked impact on the field.
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Affiliation(s)
- Doris Gabriel
- Children's Hospital Boston, Harvard Medical School, Division of Critical Care Medicine, Department of Anesthesiology, Laboratory for Biomaterials and Drug Delivery, 300 Longwood Avenue, Boston, MA 02115, USA
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16
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Preparation of photoreactive azidophenyl hyaluronic acid derivative: Protein immobilization for medical applications. Macromol Res 2012. [DOI: 10.1007/s13233-013-1016-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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17
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Chien Y, Liao YW, Liu DM, Lin HL, Chen SJ, Chen HL, Peng CH, Liang CM, Mou CY, Chiou SH. Corneal repair by human corneal keratocyte-reprogrammed iPSCs and amphiphatic carboxymethyl-hexanoyl chitosan hydrogel. Biomaterials 2012; 33:8003-16. [PMID: 22858046 DOI: 10.1016/j.biomaterials.2012.07.029] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2012] [Accepted: 07/15/2012] [Indexed: 12/13/2022]
Abstract
Induced pluripotent stem cells (iPSCs) have promising potential in regenerative medicine, but whether iPSCs can promote corneal reconstruction remains undetermined. In this study, we successfully reprogrammed human corneal keratocytes into iPSCs. To prevent feeder cell contamination, these iPSCs were cultured onto a serum- and feeder-free system in which they remained stable through 30 passages and showed ESC-like pluripotent property. To investigate the availability of iPSCs as bioengineered substitutes in corneal repair, we developed a thermo-gelling injectable amphiphatic carboxymethyl-hexanoyl chitosan (CHC) nanoscale hydrogel and found that such gel increased the viability and CD44+proportion of iPSCs, and maintained their stem-cell like gene expression, in the presence of culture media. Combined treatment of iPSC with CHC hydrogel (iPSC/CHC hydrogel) facilitated wound healing in surgical abrasion-injured corneas. In severe corneal damage induced by alkaline, iPSC/CHC hydrogel enhanced corneal reconstruction by downregulating oxidative stress and recruiting endogenous epithelial cells to restore corneal epithelial thickness. Therefore, we demonstrated that these human keratocyte-reprogrammed iPSCs, when combined with CHC hydrogel, can be used as a rapid delivery system to efficiently enhance corneal wound healing. In addition, iPSCs reprogrammed from corneal surgical residues may serve as an alternative cell source for personalized therapies for human corneal damage.
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Affiliation(s)
- Yueh Chien
- Institute of Oral Biology, National Yang-Ming University, Department of Medical Research and Education, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
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