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Privar Y, Skatova A, Maiorova M, Golikov A, Boroda A, Bratskaya S. Tuning Mechanical Properties, Swelling, and Enzymatic Degradation of Chitosan Cryogels Using Diglycidyl Ethers of Glycols with Different Chain Length as Cross-Linkers. Gels 2024; 10:483. [PMID: 39057506 PMCID: PMC11276332 DOI: 10.3390/gels10070483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2024] [Revised: 07/10/2024] [Accepted: 07/15/2024] [Indexed: 07/28/2024] Open
Abstract
Cross-linking chitosan at room and subzero temperature using a series of diglycidyl ethers of glycols (DEs)-ethylene glycol (EGDE), 1,4-butanediol (BDDE), and poly(ethylene glycol) (PEGDE) has been investigated to demonstrate that DEs can be a more powerful alternative to glutaraldehyde (GA) for fabrication of biocompatible chitosan cryogels with tunable properties. Gelation of chitosan with DEs was significantly slower than with GA, allowing formation of cryogels with larger pores and higher permeability, more suitable for flow-through applications and cell culturing. Increased hydration of the cross-links with increased DE chain length weakened intermolecular hydrogen bonding in chitosan and improved cryogel elasticity. At high cross-linking ratios (DE:chitosan 1:4), the toughness and compressive strength of the cryogels decreased in the order EGDE > BDDE > PEGDE. By varying the DE chain length and concentration, permeable chitosan cryogels with elasticity moduli from 10.4 ± 0.8 to 41 ± 3 kPa, toughness from 2.68 ± 0.5 to 8.3 ± 0.1 kJ/m3, and compressive strength at 75% strain from 11 ± 2 to 33 ± 4 kPa were fabricated. Susceptibility of cryogels to enzymatic hydrolysis was identified as the parameter most sensitive to cross-linking conditions. Weight loss of cryogels increased with increased DE chain length, and degradation rate of PEGDE-cross-linked chitosan decreased 612-fold, when the cross-linker concentration increased 20-fold.
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Affiliation(s)
- Yuliya Privar
- Institute of Chemistry Far Eastern Branch of the Russian Academy of Sciences, 159, Prosp. 100-Letiya Vladivostoka, 690022 Vladivostok, Russia
| | - Anna Skatova
- Institute of Chemistry Far Eastern Branch of the Russian Academy of Sciences, 159, Prosp. 100-Letiya Vladivostoka, 690022 Vladivostok, Russia
| | - Mariya Maiorova
- A.V. Zhirmunsky National Scientific Center of Marine Biology, Far Eastern Branch of Russian Academy of Sciences, 17, Palchevskogo Street, 690041 Vladivostok, Russia
| | - Alexey Golikov
- Institute of Chemistry Far Eastern Branch of the Russian Academy of Sciences, 159, Prosp. 100-Letiya Vladivostoka, 690022 Vladivostok, Russia
| | - Andrey Boroda
- A.V. Zhirmunsky National Scientific Center of Marine Biology, Far Eastern Branch of Russian Academy of Sciences, 17, Palchevskogo Street, 690041 Vladivostok, Russia
| | - Svetlana Bratskaya
- Institute of Chemistry Far Eastern Branch of the Russian Academy of Sciences, 159, Prosp. 100-Letiya Vladivostoka, 690022 Vladivostok, Russia
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Verčimáková K, Karbowniczek J, Sedlář M, Stachewicz U, Vojtová L. The role of glycerol in manufacturing freeze-dried chitosan and cellulose foams for mechanically stable scaffolds in skin tissue engineering. Int J Biol Macromol 2024; 275:133602. [PMID: 38964681 DOI: 10.1016/j.ijbiomac.2024.133602] [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: 03/28/2024] [Revised: 06/21/2024] [Accepted: 06/30/2024] [Indexed: 07/06/2024]
Abstract
Various strategies have extensively explored enhancing the physical and biological properties of chitosan and cellulose scaffolds for skin tissue engineering. This study presents a straightforward method involving the addition of glycerol into highly porous structures of two polysaccharide complexes: chitosan/carboxymethyl cellulose (Chit/CMC) and chitosan/oxidized cellulose (Chit/OC); during a one-step freeze-drying process. Adding glycerol, especially to Chit/CMC, significantly increased stability, prevented degradation, and improved mechanical strength by nearly 50%. Importantly, after 21 days of incubation in enzymatic medium Chit/CMC scaffold has almost completely decomposed, while foams reinforced with glycerol exhibited only 40% mass loss. It is possible due to differences in multivalent cations and polymer chain contraction, resulting in varied hydrogen bonding and, consequently, distinct physicochemical outcomes. Additionally, the scaffolds with glycerol improved the cellular activities resulting in over 40% higher proliferation of fibroblast after 21 days of incubation. It was achieved by imparting water resistance to the highly absorbent material and aiding in achieving a balance between hydrophilic and hydrophobic properties. This study clearly indicates the possible elimination of additional crosslinkers and multiple fabrication steps that can reduce the cost of scaffold production for skin tissue engineering applications while tailoring mechanical strength and degradation.
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Affiliation(s)
- Katarína Verčimáková
- Ceitec - Central European Institute of Technology, Brno University of Technology, Purkyňova 656/123, 612 00 Brno, Czech Republic.
| | - Joanna Karbowniczek
- Faculty of Metals Engineering and Industrial Computer Science, AGH University of Kraków, al. Adama Mickiewicza 30, 30-059 Kraków, Poland.
| | - Marian Sedlář
- Ceitec - Central European Institute of Technology, Brno University of Technology, Purkyňova 656/123, 612 00 Brno, Czech Republic.
| | - Urszula Stachewicz
- Faculty of Metals Engineering and Industrial Computer Science, AGH University of Kraków, al. Adama Mickiewicza 30, 30-059 Kraków, Poland.
| | - Lucy Vojtová
- Ceitec - Central European Institute of Technology, Brno University of Technology, Purkyňova 656/123, 612 00 Brno, Czech Republic.
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3
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Wang J, Sawut A, Simayi R, Song H, Jiao X. Preparation of high strength, self-healing conductive hydrogel based on polysaccharide and its application in sensor. J Mech Behav Biomed Mater 2024; 150:106246. [PMID: 38006795 DOI: 10.1016/j.jmbbm.2023.106246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 11/12/2023] [Accepted: 11/13/2023] [Indexed: 11/27/2023]
Abstract
The development of cost-effective, eco-friendly conductive hydrogels with excellent mechanical properties, self-healing capabilities, and non-toxicity holds immense significance in the realm of biosensors. The biosensors demonstrate promising applications in the fields of biomedical engineering and human motion detection. A unique double-network hydrogel was prepared through physical-chemical crosslinking using chitosan (CS), polyacrylic acid (AA), and sodium alginate (SA) as raw materials. The prepared double-network hydrogels exhibited exceptional mechanical properties, as well as self-healing and conductive capabilities. Polyacrylic acid as the first layer network, while chitosan and sodium alginate were incorporated to establish the second layer network through electrostatic interactions, thereby imparting self-healing and self-recovery properties. The hydrogel was subsequently immersed in the salt solution to induce network winding. The mechanical robustness of the hydrogel was significantly enhanced through synergistic coordination of covalent and non-covalent interactions. When the concentration of sodium alginate was 20 g/L, the double-network hydrogel exhibits enhanced mechanical properties, with a tensile fracture stress of up to 1.31 MPa and a strength of 4.17 MPa under 80% compressive deformation. Furthermore, the recovery rate of this double-network hydrogel reached an impressive 89.63% within a span of 30 min. After 24 h without any external forces, the self-healing rate reached 26.11%, demonstrating remarkable capabilities in terms of self-recovery and self-healing. Furthermore, this hydrogel exhibited consistent conductivity properties and was capable of detecting human finger movements. Hence, this study presents a novel approach for designing and synthesizing environmentally friendly conductive hydrogels for biosensors.
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Affiliation(s)
- Junxiao Wang
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi, 830017, Xinjiang, China
| | - Amatjan Sawut
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi, 830017, Xinjiang, China.
| | - Rena Simayi
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi, 830017, Xinjiang, China.
| | - Huijun Song
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi, 830017, Xinjiang, China
| | - Xueying Jiao
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi, 830017, Xinjiang, China
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Posada L, Jaramillo-Quiceno N, Castro C, Osorio M. Mucoadhesive capsules based on bacterial nanocellulose and chitosan as delivery system of turmeric extract. Heliyon 2023; 9:e21836. [PMID: 38034640 PMCID: PMC10682617 DOI: 10.1016/j.heliyon.2023.e21836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 10/27/2023] [Accepted: 10/30/2023] [Indexed: 12/02/2023] Open
Abstract
Current efforts in stomach-related drug design focus on improving drug bioavailability within the gastric region. Bacterial nanocellulose (BNC) has been established as a suitable material for drug delivery systems; however, it lacks adhesion to the gastric environment. This limitation can be addressed by leveraging the mucoadhesive properties of low molecular weight chitosan (LMWC). Therefore, we aimed to develop mucoadhesive capsules constructed from BNC coated with crosslinked LMWC, intended for targeted drug delivery in the gastric region. The capsules were characterized using scanning electron microscopy, infrared spectroscopy, thermogravimetric analysis, and mucoadhesion assessments. Under acidic conditions, crosslinked chitosan exhibited enhanced swelling relative to neutral conditions. The coating of chitosan onto the BNC fibrillar network of the capsules resulted in the superimposition of vibration bands and enhanced thermal stability. Furthermore, the capsules exhibited significant mucoadhesive properties in the gastric environment, with an attachment force measuring 89.151 ± 6.226 mN. To validate the efficacy of the system, we utilized antioxidant turmeric extract (TE) as a bioactive compound with chemopreventive potential against stomach cancer. TE was adsorbed onto BNC in a reversible multilayer system, enabling controlled adsorption and desorption. These findings highlight the significance of developing mucoadhesive capsules as a tailored drug delivery system for gastric conditions, particularly in the context of treating stomach diseases as cancer.
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Affiliation(s)
- Laia Posada
- School of Engineering, Universidad Pontificia Bolivariana, Circular 1°, No. 70-01, Medellín, 050031, Colombia
| | - Natalia Jaramillo-Quiceno
- School of Engineering, Universidad Pontificia Bolivariana, Circular 1°, No. 70-01, Medellín, 050031, Colombia
| | - Cristina Castro
- School of Engineering, Universidad Pontificia Bolivariana, Circular 1°, No. 70-01, Medellín, 050031, Colombia
| | - Marlon Osorio
- School of Engineering, Universidad Pontificia Bolivariana, Circular 1°, No. 70-01, Medellín, 050031, Colombia
- School of Health Science, Grupo de Investigación Biología de Sistemas, Universidad Pontificia Bolivariana, Calle 78B No. 72a-159, Medellín, 050036, Colombia
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Kozan NG, Joshi M, Sicherer ST, Grasman JM. Porous biomaterial scaffolds for skeletal muscle tissue engineering. Front Bioeng Biotechnol 2023; 11:1245897. [PMID: 37854885 PMCID: PMC10579822 DOI: 10.3389/fbioe.2023.1245897] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Accepted: 09/18/2023] [Indexed: 10/20/2023] Open
Abstract
Volumetric muscle loss is a traumatic injury which overwhelms the innate repair mechanisms of skeletal muscle and results in significant loss of muscle functionality. Tissue engineering seeks to regenerate these injuries through implantation of biomaterial scaffolds to encourage endogenous tissue formation and to restore mechanical function. Many types of scaffolds are currently being researched for this purpose. Scaffolds are typically made from either natural, synthetic, or conductive polymers, or any combination therein. A major criterion for the use of scaffolds for skeletal muscle is their porosity, which is essential for myoblast infiltration and myofiber ingrowth. In this review, we summarize the various methods of fabricating porous biomaterial scaffolds for skeletal muscle regeneration, as well as the various types of materials used to make these scaffolds. We provide guidelines for the fabrication of scaffolds based on functional requirements of skeletal muscle tissue, and discuss the general state of the field for skeletal muscle tissue engineering.
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Affiliation(s)
| | | | | | - Jonathan M. Grasman
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ, United States
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Sponge-like Scaffolds for Colorectal Cancer 3D Models: Substrate-Driven Difference in Micro-Tumors Morphology. Biomimetics (Basel) 2022; 7:biomimetics7020056. [PMID: 35645183 PMCID: PMC9149916 DOI: 10.3390/biomimetics7020056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 04/22/2022] [Accepted: 05/01/2022] [Indexed: 12/25/2022] Open
Abstract
Macroporous scaffolds (cryogels) for the 3D cell culturing of colorectal cancer micro-tumors have been fabricated by cross-linking chitosan and carboxymethyl chitosan (CMC) with 1,4-butandiol diglycidyl ether (BDDGE) under subzero temperature. Due to the different intrinsic properties and reactivity of CMC and chitosan under the same cross-linking conditions, Young′s moduli and swelling of the permeable for HCT 116 cells cryogels varied in the broad range 3–41 kPa and 3500–6000%, respectively. We have demonstrated that the morphology of micro-tumors can be controlled via selection of the polymer for the scaffold fabrication. Although both types of the cryogels had low cytotoxicity and supported fast cell proliferation, round-shaped tightly packed HCT 116 spheroids with an average size of 104 ± 30 µm were formed in CMC cryogels (Young′s moduli 3–6 kPa), while epithelia-like continuous sheets with thickness up to 150 µm grew in chitosan cryogel (Young′s modulus 41 kPa). There was an explicit similarity between HCT 116 micro-tumor morphology in soft (CMC cryogel) or stiff (chitosan cryogel) and in ultra-low attachment or adhesive culture plates, respectively, but cryogels provided the better control of the micro-tumor’s size distribution and the possibility to perform long-term investigations of drug–response, cell–cell and cell–matrix interactions in vitro.
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Microenvironmental stiffness mediates cytoskeleton re-organization in chondrocytes through laminin-FAK mechanotransduction. Int J Oral Sci 2022; 14:15. [PMID: 35277477 PMCID: PMC8917190 DOI: 10.1038/s41368-022-00165-5] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 01/07/2022] [Accepted: 01/24/2022] [Indexed: 12/11/2022] Open
Abstract
AbstractMicroenvironmental biophysical factors play a fundamental role in controlling cell behaviors including cell morphology, proliferation, adhesion and differentiation, and even determining the cell fate. Cells are able to actively sense the surrounding mechanical microenvironment and change their cellular morphology to adapt to it. Although cell morphological changes have been considered to be the first and most important step in the interaction between cells and their mechanical microenvironment, their regulatory network is not completely clear. In the current study, we generated silicon-based elastomer polydimethylsiloxane (PDMS) substrates with stiff (15:1, PDMS elastomer vs. curing agent) and soft (45:1) stiffnesses, which showed the Young’s moduli of ~450 kPa and 46 kPa, respectively, and elucidated a new path in cytoskeleton re-organization in chondrocytes in response to changed substrate stiffnesses by characterizing the axis shift from the secreted extracellular protein laminin β1, focal adhesion complex protein FAK to microfilament bundling. We first showed the cellular cytoskeleton changes in chondrocytes by characterizing the cell spreading area and cellular synapses. We then found the changes of secreted extracellular linkage protein, laminin β1, and focal adhesion complex protein, FAK, in chondrocytes in response to different substrate stiffnesses. These two proteins were shown to be directly interacted by Co-IP and colocalization. We next showed that impact of FAK on the cytoskeleton organization by showing the changes of microfilament bundles and found the potential intermediate regulators. Taking together, this modulation axis of laminin β1-FAK-microfilament could enlarge our understanding about the interdependence among mechanosensing, mechanotransduction, and cytoskeleton re-organization.
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Asgari M, Latifi N, Giovanniello F, Espinosa HD, Amabili M. Revealing Layer‐Specific Ultrastructure and Nanomechanics of Fibrillar Collagen in Human Aorta via Atomic Force Microscopy Testing: Implications on Tissue Mechanics at Macroscopic Scale. ADVANCED NANOBIOMED RESEARCH 2022. [DOI: 10.1002/anbr.202100159] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Affiliation(s)
- Meisam Asgari
- Department of Mechanical Engineering McGill University 817 Sherbrooke Street West Montreal QC H3A 0C3 Canada
- Theoretical and Applied Mechanics Program Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - Neda Latifi
- Department of Mechanical and Industrial Engineering University of Toronto 5 King's College Road Toronto ON M5S 3G8 Canada
| | - Francesco Giovanniello
- Department of Mechanical Engineering McGill University 817 Sherbrooke Street West Montreal QC H3A 0C3 Canada
| | - Horacio D. Espinosa
- Theoretical and Applied Mechanics Program Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - Marco Amabili
- Department of Mechanical Engineering McGill University 817 Sherbrooke Street West Montreal QC H3A 0C3 Canada
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Yeh YY, Tsai YT, Wu CY, Tu LH, Bai MY, Yeh YC. The role of aldehyde-functionalized crosslinkers on the property of chitosan hydrogels. Macromol Biosci 2022; 22:e2100477. [PMID: 35103401 DOI: 10.1002/mabi.202100477] [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: 11/28/2021] [Revised: 01/22/2022] [Indexed: 11/10/2022]
Abstract
XXXX This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Ying-Yu Yeh
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei, 10617, Taiwan
| | - Yu-Ting Tsai
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei, 10617, Taiwan
| | - Chun-Yu Wu
- Graduate Institute of Biomedical Engineering, National Taiwan University of Science and Technology, Taipei, 10617, Taiwan
| | - Ling-Hsien Tu
- Department of Chemistry, National Taiwan Normal University, Taipei, 11677, Taiwan
| | - Meng-Yi Bai
- Graduate Institute of Biomedical Engineering, National Taiwan University of Science and Technology, Taipei, 10617, Taiwan.,Biomedical Engineering Program, Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei, 10617, Taiwan.,Adjunct Appointment to the Department of Biomedical Engineering, National Defense Medical Center, Taipei, 11490, Taiwan
| | - Yi-Cheun Yeh
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei, 10617, Taiwan
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Yang IH, Lin IE, Chen TC, Chen ZY, Kuan CY, Lin JN, Chou YC, Lin FH. Synthesis, characterization, and evaluation of BDDE crosslinked chitosan-TGA hydrogel encapsulated with genistein for vaginal atrophy. Carbohydr Polym 2021; 260:117832. [PMID: 33712170 DOI: 10.1016/j.carbpol.2021.117832] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 02/09/2021] [Accepted: 02/14/2021] [Indexed: 12/20/2022]
Abstract
Vagina atrophy is a common symptom in women after menopause owing to decreasing estrogen levels. The most conventional treatment for this condition is estrogen cream. The shortcoming is its weak adhesion to the vagina mucus, thus requiring frequent daily application. In this study, BDDE was selected to crosslink and graft chitosan with thioglycolic acid, to form thiolated chitosan (CT) and improve the mucoadhesive properties of chitosan. Genistein was selected as the bioactive molecule that could exhibit estrogen-like properties for long-term treatment of vaginal atrophy. The efficacies of the materials were characterized and evaluated both in vitro and in vivo. Results showed that the mucoadhesive property of CT was approximately two-fold stronger against the constant flow than unmodified chitosan. CT with genistein (CT-G) was administered intravaginally every three days in vivo. It showed that the developed CT-G recover 54 % of the epithelium thickness of an atrophic vagina and ease vaginal atrophy.
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Affiliation(s)
- I-Hsuan Yang
- Department of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, No. 49, Fanglan Rd, Taipei, 10672, Taiwan
| | - I-En Lin
- Department of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, No. 49, Fanglan Rd, Taipei, 10672, Taiwan
| | - Tzu-Chien Chen
- Department of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, No. 49, Fanglan Rd, Taipei, 10672, Taiwan
| | - Zhi-Yu Chen
- Department of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, No. 49, Fanglan Rd, Taipei, 10672, Taiwan
| | - Che-Yung Kuan
- Department of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, No. 49, Fanglan Rd, Taipei, 10672, Taiwan; Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, No. 35, Keyan Road, Zhunan, Miaoli County, 35053, Taiwan
| | - Jhih-Ni Lin
- Department of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, No. 49, Fanglan Rd, Taipei, 10672, Taiwan
| | - Yu-Chia Chou
- Department of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, No. 49, Fanglan Rd, Taipei, 10672, Taiwan
| | - Feng-Huei Lin
- Department of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, No. 49, Fanglan Rd, Taipei, 10672, Taiwan; Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, No. 35, Keyan Road, Zhunan, Miaoli County, 35053, Taiwan.
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Nishad PA, Bhaskarapillai A, Srinivasan MP, Rangarajan S. New insight into the role of crosslinkers and composition on selectivity and kinetics of antimony uptake by chitosan-titania composite beads. SN APPLIED SCIENCES 2021. [DOI: 10.1007/s42452-021-04158-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
AbstractRole of composition and the nature of crosslinking on the properties of titania-chitosan beads have been investigated in detail. The investigations were done in order to explore the feasibility of design and synthesis of titania-chitosan beads with bespoke functionality based on the intended application. This would greatly enhance the potential for the industrial application of these biopolymer based beads. Beads of varying compositions (of titania and chitosan) were prepared and crosslinked using epichlorohydrin or glutaraldehyde. The physical characteristics and antimony binding properties of the resultant crosslinked titania-chitosan beads were investigated in detail. Influence of chitosan amount on swelling was seen to be more predominant in the glutaraldehyde crosslinked beads (TA-Cts-Glu). TA-Cts-Glu beads showed more swelling and better antimony (Sb(III) and Sb(V)) uptake as compared to the epichlorohydrin crosslinked beads (TA-CTS-Epi). While TA-Cts-Glu beads showed faster uptake kinetics compared to the TA-CTS-Epi beads, the latter showed selectivity towards Sb(III) against transition metal cations. Further, the beads exhibited differential uptake of Sb(V) and Sb(III). TA-Cts-Glu beads prepared with equal amounts of titania and chitosan showed the maximum Sb(V) uptake while the TA-Cts-Epi beads with higher chitosan to titania ratio showed the least. Sb(V) binding was enhanced by the crosslinked chitosan, while the Sb(III) uptake was aided predominantly by the titania content in the beads.
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Petet TJ, Deal HE, Zhao HS, He AY, Tang C, Lemmon CA. Rheological characterization of poly-dimethyl siloxane formulations with tunable viscoelastic properties. RSC Adv 2021; 11:35910-35917. [PMID: 35492759 PMCID: PMC9043277 DOI: 10.1039/d1ra03548g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 10/24/2021] [Indexed: 12/04/2022] Open
Abstract
Studies from the past two decades have demonstrated convincingly that cells are able to sense the mechanical properties of their surroundings. Cells make major decisions in response to this mechanosensation, including decisions regarding cell migration, proliferation, survival, and differentiation. The vast majority of these studies have focused on the cellular mechanoresponse to changing substrate stiffness (or elastic modulus) and have been conducted on purely elastic substrates. In contrast, most soft tissues in the human body exhibit viscoelastic behavior; that is, they generate responsive force proportional to both the magnitude and rate of strain. While several recent studies have demonstrated that viscous effects of an underlying substrate affect cellular mechanoresponse, there is not a straightforward experimental method to probe this, particularly for investigators with little background in biomaterial fabrication. In the current work, we demonstrate that polymers comprised of differing polydimethylsiloxane (PDMS) formulations can be generated that allow for control over both the strain-dependent storage modulus and the strain rate-dependent loss modulus. These substrates requires no background in biomaterial fabrication to fabricate, are shelf-stable, and exhibit repeatable mechanical properties. Here we demonstrate that these substrates are biocompatible and exhibit similar protein adsorption characteristics regardless of mechanical properties. Finally, we develop a set of empirical equations that predicts the storage and loss modulus for a given blend of PDMS formulations, allowing users to tailor substrate mechanical properties to their specific needs. We have generated novel formulations of polydimethyl siloxane with varying viscoelastic properties that can be used to study cellular response. We present equations that can be used to predict the storage and loss moduli of these polymers.![]()
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Affiliation(s)
- Thomas J. Petet
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, VA, USA
| | - Halston E. Deal
- Joint Department of Biomedical Engineering, North Carolina State University, University of North Carolina, Chapel Hill, Raleigh, NC, USA
- Comparative Medicine Institute, North Carolina State University, Raleigh, NC, USA
| | - Hanhsen S. Zhao
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, VA, USA
| | - Amanda Y. He
- Department of Biology, Duke University, Durham, NC, USA
| | - Christina Tang
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, VA, USA
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, Richmond, VA, USA
| | - Christopher A. Lemmon
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, VA, USA
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Boolean model of anchorage dependence and contact inhibition points to coordinated inhibition but semi-independent induction of proliferation and migration. Comput Struct Biotechnol J 2020; 18:2145-2165. [PMID: 32913583 PMCID: PMC7451872 DOI: 10.1016/j.csbj.2020.07.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 06/23/2020] [Accepted: 07/22/2020] [Indexed: 12/16/2022] Open
Abstract
Epithelial cells respond to their physical neighborhood with mechano-sensitive behaviors required for development and tissue maintenance. These include anchorage dependence, matrix stiffness-dependent proliferation, contact inhibition of proliferation and migration, and collective migration that balances cell crawling with the maintenance of cell junctions. While required for development and tissue repair, these coordinated responses to the microenvironment also contribute to cancer metastasis. Predictive models of the signaling networks that coordinate these behaviors are critical in controlling cell behavior to halt disease. Here we propose a Boolean regulatory network model that synthesizes mechanosensitive signaling that links anchorage to a matrix of varying stiffness and cell density sensing to contact inhibition, proliferation, migration, and apoptosis. Our model can reproduce anchorage dependence and anoikis, detachment-induced cytokinesis errors, the effect of matrix stiffness on proliferation, and contact inhibition of proliferation and migration by two mechanisms that converge on the YAP transcription factor. In addition, we offer testable predictions related to cell cycle-dependent anoikis sensitivity, the molecular requirements for abolishing contact inhibition, and substrate stiffness dependent expression of the catalytic subunit of PI3K. Moreover, our model predicts heterogeneity in migratory vs. non-migratory phenotypes in sub-confluent monolayers, and co-inhibition but semi-independent induction of proliferation vs. migration as a function of cell density and mitogenic stimulation. Our model serves as a stepping-stone towards modeling mechanosensitive routes to the epithelial to mesenchymal transition, capturing the effects of the mesenchymal state on anoikis resistance, and understanding the balance between migration versus proliferation at each stage of the epithelial to mesenchymal transition.
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Abstract
Brain tumors' severity ranges from benign to highly aggressive and invasive. Bioengineering tools can assist in understanding the pathophysiology of these tumors from outside the body and facilitate development of suitable antitumoral treatments. Here, we first describe the physiology and cellular composition of brain tumors. Then, we discuss the development of three-dimensional tissue models utilizing brain tumor cells. In particular, we highlight the role of hydrogels in providing a biomimetic support for the cells to grow into defined structures. Microscale technologies, such as electrospinning and bioprinting, and advanced cellular models aim to mimic the extracellular matrix and natural cellular localization in engineered tumor tissues. Lastly, we review current applications and prospects of hydrogels for therapeutic purposes, such as drug delivery and co-administration with other therapies. Through further development, hydrogels can serve as a reliable option for in vitro modeling and treatment of brain tumors for translational medicine.
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15
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Criado-Gonzalez M, Loftin B, Rodon Fores J, Vautier D, Kocgozlu L, Jierry L, Schaaf P, Boulmedais F, Harth E. Enzyme assisted peptide self-assemblies trigger cell adhesion in high density oxime based host gels. J Mater Chem B 2020; 8:4419-4427. [PMID: 32186320 DOI: 10.1039/d0tb00456a] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Peptide supramolecular self-assemblies are recognized as important components in responsive hydrogel based materials with applications in tissue engineering and regenerative medicine. Studying the influence of hydrogel matrices on the self-assembly behavior of peptides and interaction with cells is essential to guide the future development of engineered biomaterials. In this contribution, we present a PEG based host hydrogel material generated by oxime click chemistry that shows cellular adhesion behavior in response to enzyme assisted peptide self-assembly (EASA) within the host gel. This hydrogel prepared from poly(dimethylacrylamide-co-diacetoneacrylamide), poly(DMA-DAAM) with high molar fractions (49%) of DAAM and dialkoxyamine PEG cross-linker, was studied in the presence of embedded enzyme alkaline phosphatase (AP) and a non-adhesive cell behavior towards NIH 3T3 fibroblasts was observed. When brought into contact with a Fmoc-FFpY peptide solution (pY: phosphorylated tyrosine), the gel forms intercalated Fmoc-FFY peptide self-assemblies upon diffusion of Fmoc-FFpY into the cross-linked hydrogel network as was confirmed by circular dichroism, fluorescence emission spectroscopy and confocal microscopy. Nevertheless, the mechanical properties do not change significantly after the peptide self-assembly in the host gel. This enzyme assisted peptide self-assembly promotes fibroblast cell adhesion that can be enhanced if Fmoc-F-RGD peptides are added to the pre-gelator Fmoc-FFpY peptide solution. Cell adhesion results mainly from interactions of cells with the non-covalent peptide self-assemblies present in the gel despite the fact that the mechanical properties are very close to those of the native host gel. This result is in contrast to numerous studies which showed that the mechanical properties of a substrate are key parameters of cell adhesion. It opens up the possibility to develop a diverse set of hybrid materials to control cell fate in culture due to tailored self-assemblies of peptides responding to the environment provided by the host guest gel.
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Affiliation(s)
- Miryam Criado-Gonzalez
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR 22, 67034 Strasbourg, France.
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16
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Effect of crosslinking agents on drug distribution in chitosan hydrogel for targeted drug delivery to treat cancer. JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-020-02059-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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17
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Bai M, Cai L, Li X, Ye L, Xie J. Stiffness and topography of biomaterials dictate cell-matrix interaction in musculoskeletal cells at the bio-interface: A concise progress review. J Biomed Mater Res B Appl Biomater 2020; 108:2426-2440. [PMID: 32027091 DOI: 10.1002/jbm.b.34575] [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] [Received: 07/10/2019] [Revised: 12/30/2019] [Accepted: 01/19/2020] [Indexed: 02/05/2023]
Abstract
Mutually interacted musculoskeletal tissues work together within the physiological environment full of varieties of external stimulus. Consistent with the locomotive function of the tissues, musculoskeletal cells are remarkably mechanosensitive to the physical cues. Signals like extracellular matrix (ECM) stiffness, topography, and geometry can be sensed and transduced into intracellular signaling cascades to trigger a series of cell responses, including cell adhesion, cell phenotype maintenance, cytoskeletal reconstruction, and stem cell differentiation (Du et al., 2011; Murphy et al., 2014; Lv et al., 2015; Kim et al., 2016; Kumar et al., 2017). With the development of tissue engineering and regenerative medicine, the potent effects of ECM physical properties on cell behaviors at the cell-matrix interface are drawing much attention. To mimic the interaction between cell and its ECM physical properties, developing advanced biomaterials with desired characteristics which could achieve the biointerface between cells and the surrounded matrix close to the physiological conditions becomes a great hotspot. In this review, based on the current publications in the field of biointerfaces, we systematically summarized the significant roles of stiffness and topography on musculoskeletal cell behaviors. We hope to shed light on the importance of physical cues in musculoskeletal tissue engineering and provide up to date strategies towards the natural or artificial replication of physiological microenvironment.
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Affiliation(s)
- Mingru Bai
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Linyi Cai
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xin Li
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Ling Ye
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jing Xie
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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18
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In Vitro Evaluation of the Influence of Substrate Mechanics on Matrix-Assisted Human Chondrocyte Transplantation. J Funct Biomater 2020; 11:jfb11010005. [PMID: 31963629 PMCID: PMC7151603 DOI: 10.3390/jfb11010005] [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: 11/30/2019] [Revised: 01/09/2020] [Accepted: 01/15/2020] [Indexed: 11/25/2022] Open
Abstract
Matrix-assisted chondrocyte transplantation (MACT) is of great interest for the treatment of patients with cartilage lesions. However, the roles of the matrix properties in modulating cartilage tissue integration during MACT recovery have not been fully understood. The objective of this study was to uncover the effects of substrate mechanics on the integration of implanted chondrocyte-laden hydrogels with native cartilage tissues. To this end, agarose hydrogels with Young’s moduli ranging from 0.49 kPa (0.5%, w/v) to 23.08 kPa (10%) were prepared and incorporated into an in vitro human cartilage explant model. The hydrogel-cartilage composites were cultivated for up to 12 weeks and harvested for evaluation via scanning electron microscopy, histology, and a push-through test. Our results demonstrated that integration strength at the hydrogel-cartilage interface in the 1.0% (0.93 kPa) and 2.5% (3.30 kPa) agarose groups significantly increased over time, whereas hydrogels with higher stiffness (>8.78 kPa) led to poor integration with articular cartilage. Extensive sprouting of extracellular matrix in the interfacial regions was only observed in the 0.5% to 2.5% agarose groups. Collectively, our findings suggest that while neocartilage development and its integration with native cartilage are modulated by substrate elasticity, an optimal Young’s modulus (3.30 kPa) possessed by agarose hydrogels is identified such that superior quality of tissue integration is achieved without compromising tissue properties of implanted constructs.
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19
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Zhong J, Yang Y, Liao L, Zhang C. Matrix stiffness-regulated cellular functions under different dimensionalities. Biomater Sci 2020; 8:2734-2755. [DOI: 10.1039/c9bm01809c] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The microenvironments that cells encounter with in vitro.
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Affiliation(s)
- Jiajun Zhong
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instruments (Sun Yat-sen University)
- School of Biomedical Engineering
- Sun Yat-Sen University
- Guangzhou
- P. R. China
| | - Yuexiong Yang
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instruments (Sun Yat-sen University)
- School of Biomedical Engineering
- Sun Yat-Sen University
- Guangzhou
- P. R. China
| | - Liqiong Liao
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering
- Biomaterials Research Center
- School of Biomedical Engineering
- Southern Medical University
- Guangzhou
| | - Chao Zhang
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instruments (Sun Yat-sen University)
- School of Biomedical Engineering
- Sun Yat-Sen University
- Guangzhou
- P. R. China
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20
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Severn CE, Eissa AM, Langford CR, Parker A, Walker M, Dobbe JGG, Streekstra GJ, Cameron NR, Toye AM. Ex vivo culture of adult CD34 + stem cells using functional highly porous polymer scaffolds to establish biomimicry of the bone marrow niche. Biomaterials 2019; 225:119533. [PMID: 31610389 DOI: 10.1016/j.biomaterials.2019.119533] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 09/26/2019] [Accepted: 09/28/2019] [Indexed: 12/12/2022]
Abstract
Haematopoiesis, the process of blood production, occurs from a tiny contingent of haematopoietic stem cells (HSC) in highly specialised three-dimensional niches located within the bone marrow. When haematopoiesis is replicated using in vitro two-dimensional culture, HSCs rapidly differentiate, limiting self-renewal. Emulsion-templated highly porous polyHIPE foam scaffolds were chosen to mimic the honeycomb architecture of human bone. The unmodified polyHIPE material supports haematopoietic stem and progenitor cell (HSPC) culture, with successful culture of erythroid progenitors and neutrophils within the scaffolds. Using erythroid culture methodology, the CD34+ population was maintained for 28 days with continual release of erythroid progenitors. These cells are shown to spontaneously repopulate the scaffolds, and the accumulated egress can be expanded and grown at large scale to reticulocytes. We next show that the polyHIPE scaffolds can be successfully functionalised using activated BM(PEG)2 (1,8-bismaleimido-diethyleneglycol) and then a Jagged-1 peptide attached in an attempt to facilitate notch signalling. Although Jagged-1 peptide had no detectable effect, the BM(PEG)2 alone significantly increased cell egress when compared to controls, without depleting the scaffold population. This work highlights polyHIPE as a novel functionalisable material for mimicking the bone marrow, and also that PEG can influence HSPC behaviour within scaffolds.
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Affiliation(s)
- C E Severn
- School of Biochemistry, Biomedical Sciences Building, University of Bristol, Bristol, BS8 1TD, UK; National Institute for Health Research Blood and Transplant Research Unit (NIHR BTRU) in Red Blood Cell Products, University of Bristol, UK
| | - A M Eissa
- Department of Polymers, Chemical Industries Research Division, National Research Centre, El Bohouth St. 33, Dokki, Giza, 12622, Cairo, Egypt; School of Engineering, University of Warwick, Coventry, CV4 7AL, UK; Department of Chemistry, University of Warwick, Coventry, CV4 7AL, UK
| | - C R Langford
- Department of Materials Science and Engineering, Monash University, Clayton, 3800, Victoria, Australia
| | - A Parker
- School of Biochemistry, Biomedical Sciences Building, University of Bristol, Bristol, BS8 1TD, UK
| | - M Walker
- Department of Physics, University of Warwick, Coventry, CV4 7AL, UK
| | - J G G Dobbe
- Amsterdam UMC, University of Amsterdam, Department of Biomedical Engineering and Physics, Meibergdreef 9, Amsterdam, the Netherlands
| | - G J Streekstra
- Amsterdam UMC, University of Amsterdam, Department of Biomedical Engineering and Physics, Meibergdreef 9, Amsterdam, the Netherlands
| | - N R Cameron
- School of Engineering, University of Warwick, Coventry, CV4 7AL, UK; Department of Materials Science and Engineering, Monash University, Clayton, 3800, Victoria, Australia
| | - A M Toye
- School of Biochemistry, Biomedical Sciences Building, University of Bristol, Bristol, BS8 1TD, UK; National Institute for Health Research Blood and Transplant Research Unit (NIHR BTRU) in Red Blood Cell Products, University of Bristol, UK.
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21
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Abdallah M, Martin M, El Tahchi MR, Balme S, Faour WH, Varga B, Cloitre T, Páll O, Cuisinier FJG, Gergely C, Bassil MJ, Bechelany M. Influence of Hydrolyzed Polyacrylamide Hydrogel Stiffness on Podocyte Morphology, Phenotype, and Mechanical Properties. ACS APPLIED MATERIALS & INTERFACES 2019; 11:32623-32632. [PMID: 31424195 DOI: 10.1021/acsami.9b09337] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Chronic kidney disease is characterized by a gradual decline in renal function that progresses toward end-stage renal disease. Podocytes are highly specialized glomerular epithelial cells which form with the glomerular basement membrane (GBM) and capillary endothelium the glomerular filtration barrier. GBM is an extracellular matrix (ECM) that acts as a mechanical support and provides biophysical signals that control normal podocytes behavior in the process of glomerular filtration. Thus, the ECM stiffness represents an essential characteristic that controls podocyte function. Hydrolyzed Polyacrylamide (PAAm) hydrogels are smart polyelectrolyte materials. Their biophysical properties can be tuned as desired to mimic the natural ECM. Therefore, these hydrogels are investigated as new ECM-like constructs to engineer a podocyte-like basement membrane that forms with cultured human podocytes a functional glomerular-like filtration barrier. Such ECM-like PAAm hydrogel construct will provide unique opportunity to reveal podocyte cell biological responses in an in vivo-like setting by controlling the physical properties of the PAAm membranes. In this work, Hydrolyzed PAAm scaffolds having different stiffness ranging between 0.6-44 kPa are prepared. The correlation between the hydrogel structural and mechanical properties and Podocyte morphology, elasticity, cytoskeleton reorganization, and podocin expression is evaluated. Results show that hydrolyzed PAAm hydrogels promote good cell adhesion and growth and are suitable materials for the development of future 3D smart scaffolds. In addition, the hydrogel properties can be easily modulated over a wide physiological range by controlling the cross-linker concentration. Finally, tuning the hydrogel properties is an effective strategy to control the cells function. This work addressed the complexity of podocytes behavior which will further enhance our knowledge to develop a kidney-on-chip model much needed in kidney function studies in both healthy and diseased states.
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Affiliation(s)
- Maya Abdallah
- Institut Européen des Membranes, ENSCM, CNRS , Université de Montpellier , Montpellier 34090 , France
- Biomaterials and Intelligent Materials Research Laboratory (LBMI) , Lebanese University , Faculty of Sciences 2, Physic Department , Jdeidet 90656 , Lebanon
| | - Marta Martin
- Laboratoire Charles Coulomb , Université de Montpellier , CNRS , Montpellier 34095 , France
| | - Mario R El Tahchi
- Biomaterials and Intelligent Materials Research Laboratory (LBMI) , Lebanese University , Faculty of Sciences 2, Physic Department , Jdeidet 90656 , Lebanon
| | - Sebastien Balme
- Institut Européen des Membranes, ENSCM, CNRS , Université de Montpellier , Montpellier 34090 , France
| | - Wissam H Faour
- Gilbert and Rose-Marie Chagoury School of Medicine , Lebanese American University , P.O. Box 36 , Byblos , Lebanon
| | - Béla Varga
- Laboratoire Charles Coulomb , Université de Montpellier , CNRS , Montpellier 34095 , France
| | - Thierry Cloitre
- Laboratoire Charles Coulomb , Université de Montpellier , CNRS , Montpellier 34095 , France
| | - Orsolya Páll
- Laboratoire de Bioingénierie et Nanosciences , Université de Montpellier , Montpellier 34090 , France
| | - Frédéric J G Cuisinier
- Laboratoire de Bioingénierie et Nanosciences , Université de Montpellier , Montpellier 34090 , France
| | - Csilla Gergely
- Laboratoire Charles Coulomb , Université de Montpellier , CNRS , Montpellier 34095 , France
| | - Maria J Bassil
- Biomaterials and Intelligent Materials Research Laboratory (LBMI) , Lebanese University , Faculty of Sciences 2, Physic Department , Jdeidet 90656 , Lebanon
| | - Mikhael Bechelany
- Institut Européen des Membranes, ENSCM, CNRS , Université de Montpellier , Montpellier 34090 , France
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22
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Eren Cimenci C, Kurtulus GU, Caliskan OS, Guler MO, Tekinay AB. N-Cadherin Mimetic Peptide Nanofiber System Induces Chondrogenic Differentiation of Mesenchymal Stem Cells. Bioconjug Chem 2019; 30:2417-2426. [PMID: 31415164 DOI: 10.1021/acs.bioconjchem.9b00514] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Cadherins are vital for cell-to-cell interactions during tissue growth, migration, and differentiation processes. Both biophysical and biochemical inputs are generated upon cell-to-cell adhesions, which determine the fate of the mesenchymal stem cells (MSCs). The effect of cadherin interactions on the MSC differentiation still remains elusive. Here we combined the N-Cadherin mimetic peptide (HAV-PA) with the self-assembling E-PA and the resultant N-cadherin mimetic peptide nanofibers promoted chondrogenic differentiation of MSCs in conjunction with chondrogenic factors as a synthetic extracellular matrix system. Self-assembly of the precursor peptide amphiphile molecules HAV-PA and E-PA enable the organization of HAV peptide residues in close proximity to the cell interaction site, forming a supramolecular N-cadherin-like system. These bioactive peptide nanofibers not only promoted viability and enhanced adhesion of MSCs but also augmented the expression of cartilage specific matrix components compared to the nonbioactive control nanofibers. Overall, the N-cadherin mimetic peptide nanofiber system facilitated MSC commitment into the chondrogenic lineage presenting an alternative bioactive platform for stem-cell-based cartilage regeneration.
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Affiliation(s)
- Cagla Eren Cimenci
- Institute of Materials Science and Nanotechnology, National Nanotechnology Research Center (UNAM) , Bilkent University , Ankara 06800 , Turkey
| | - Gozde Uzunalli Kurtulus
- Department of Comparative Pathobiology , Purdue University , West Lafayette , Indiana 47907 , United States
| | - Ozum S Caliskan
- Institute of Materials Science and Nanotechnology, National Nanotechnology Research Center (UNAM) , Bilkent University , Ankara 06800 , Turkey
| | - Mustafa O Guler
- Pritzker School of Molecular Engineering , University of Chicago , Chicago , Illinois 60637 , United States
| | - Ayse B Tekinay
- Institute of Materials Science and Nanotechnology, National Nanotechnology Research Center (UNAM) , Bilkent University , Ankara 06800 , Turkey.,Eryigit Biomedical Devices Research and Development Center , Ankara 06380 , Turkey.,Neuroscience Graduate Program , Bilkent University , Ankara 06800 , Turkey
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23
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Shamekhi MA, Mirzadeh H, Mahdavi H, Rabiee A, Mohebbi-Kalhori D, Baghaban Eslaminejad M. Graphene oxide containing chitosan scaffolds for cartilage tissue engineering. Int J Biol Macromol 2019; 127:396-405. [DOI: 10.1016/j.ijbiomac.2019.01.020] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2018] [Revised: 12/23/2018] [Accepted: 01/04/2019] [Indexed: 02/07/2023]
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24
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Ji Y, Li J, Wei Y, Gao W, Fu X, Wang Y. Substrate stiffness affects the immunosuppressive and trophic function of hMSCs via modulating cytoskeletal polymerization and tension. Biomater Sci 2019; 7:5292-5300. [DOI: 10.1039/c9bm01202h] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Soft substrates improve the immunosuppressive and trophic function of hMSCs via cytoskeleton inhibition.
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Affiliation(s)
- Yurong Ji
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510640
- PR China
- National Engineering Research Center for Tissue Restoration and Reconstruction
| | - Jing Li
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510640
- PR China
- National Engineering Research Center for Tissue Restoration and Reconstruction
| | - Yingqi Wei
- Key Laboratory of Biomedical Engineering of Guangdong Province and Innovation Center for Tissue Restoration and Reconstruction
- South China University of Technology
- Guangzhou
- PR China
- Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education
| | - Wendong Gao
- Key Laboratory of Biomedical Engineering of Guangdong Province and Innovation Center for Tissue Restoration and Reconstruction
- South China University of Technology
- Guangzhou
- PR China
- Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education
| | - Xiaoling Fu
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510640
- PR China
- National Engineering Research Center for Tissue Restoration and Reconstruction
| | - Yingjun Wang
- Key Laboratory of Biomedical Engineering of Guangdong Province and Innovation Center for Tissue Restoration and Reconstruction
- South China University of Technology
- Guangzhou
- PR China
- Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education
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25
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Genistein Loaded Nanofibers Protect Spinal Cord Tissue Following Experimental Injury in Rats. Biomedicines 2018; 6:biomedicines6040096. [PMID: 30287760 PMCID: PMC6316236 DOI: 10.3390/biomedicines6040096] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 09/28/2018] [Accepted: 10/01/2018] [Indexed: 11/16/2022] Open
Abstract
Innovative drug-delivery systems offer a unique approach to effectively provide therapeutic drug dose over the needed time to achieve better tissue protection and enhanced recovery. The hypothesis of the current study was to test the antioxidant and anti-inflammatory effects of genistein and nanofibers on the spinal cord tissue following experimental spinal cord injury (SCI). Rats were treated post SCI with genistein that is loaded on chitosan/polyvinyl alcohol (CS/PVA) nanofibers as an implantable drug-delivery system. SCI caused marked oxidative damage and inflammation, as is evident by the reduction in the super oxide dismutase (SOD) activity and the level of interleukin-10 (IL-10) in injured spinal cord tissue, as well as the significant increase in the levels of nitric oxide (NO), malondialdehyde (MDA), and tumor necrosis factor-alpha (TNF-α). Treatment of rats post SCI with genistein and CS/PVA nanofibers improved most of the above-mentioned biochemical parameters and shifted them toward the control group values. Genistein induced an increase in the activity of SOD and the level of IL-10, while causing a decrease in NO, MDA, and TNF-α in injured spinal cord tissue. Genistein and CS/PVA nanofibers provide a novel combination for treating inflammatory nervous tissue conditions, especially when combined as an implantable drug-delivery system.
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26
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Zhang J, Allardyce BJ, Rajkhowa R, Zhao Y, Dilley RJ, Redmond SL, Wang X, Liu X. 3D Printing of Silk Particle-Reinforced Chitosan Hydrogel Structures and Their Properties. ACS Biomater Sci Eng 2018; 4:3036-3046. [DOI: 10.1021/acsbiomaterials.8b00804] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Jun Zhang
- Deakin University, Institute for Frontier Materials, Geelong, 75 Pigdons Road, Waurn Ponds, Victoria 3216, Australia
| | - Benjamin J. Allardyce
- Deakin University, Institute for Frontier Materials, Geelong, 75 Pigdons Road, Waurn Ponds, Victoria 3216, Australia
| | - Rangam Rajkhowa
- Deakin University, Institute for Frontier Materials, Geelong, 75 Pigdons Road, Waurn Ponds, Victoria 3216, Australia
| | - Yan Zhao
- College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - Rodney J. Dilley
- Ear Science Institute Australia, 8 Verdun Street, Nedlands, Western Australia 6009, Australia
| | - Sharon L. Redmond
- Ear Science Institute Australia, 8 Verdun Street, Nedlands, Western Australia 6009, Australia
| | - Xungai Wang
- Deakin University, Institute for Frontier Materials, Geelong, 75 Pigdons Road, Waurn Ponds, Victoria 3216, Australia
| | - Xin Liu
- Deakin University, Institute for Frontier Materials, Geelong, 75 Pigdons Road, Waurn Ponds, Victoria 3216, Australia
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27
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Fiejdasz S, Horak W, Lewandowska-Łańcucka J, Szuwarzyński M, Salwiński J, Nowakowska M. Tuning of elasticity and surface properties of hydrogel cell culture substrates by simple chemical approach. J Colloid Interface Sci 2018; 524:102-113. [PMID: 29635083 DOI: 10.1016/j.jcis.2018.04.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 03/30/2018] [Accepted: 04/02/2018] [Indexed: 11/29/2022]
Abstract
When designing materials for tissue engineering applications various parameters characterizing both materials and tissue have to be taken into account. The characteristics such as chemistry, elasticity, wettability, roughness and morphology of the substrate's surface have significant impact on cell behavior. The paper presents biopolymer (collagen/chitosan) based hydrogel materials with tunable elasticity and surface properties useful for fabrication of substrates for cell culture. Using simple chemical approach involving the change in concentration of crosslinking agent (genipin) and composition of the reaction mixture the hydrogels characterized with various features were obtained. Detailed analysis of morphology, topography, roughness and elasticity of surface performed using Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM) and rheological measurements has shown that the topographical aspects and roughness parameter can be modulated in nanoscale regime (13-47 nm). Substrate's elasticity could be modified in a wide range (0.2-270 kPa). Biological in vitro studies on fibroblasts behavior revealed that the materials prepared provide satisfactory conditions for cell culture, ensuring their high viability, good adhesion and normal morphology. The genipin crosslinked collagen-chitosan hydrogels characterized by denser fiber structure, higher elasticity and lower surface roughness are the most attractive supports for fibroblasts cultivation. The results obtained indicate that the properties of the materials developed can be easily tailored to the needs of the given type of cells.
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Affiliation(s)
- Sylwia Fiejdasz
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland; AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Department of Solid State Physics, Al. Mickiewicza 30, 30-059 Kraków, Poland.
| | - Wojciech Horak
- AGH University of Science and Technology, Faculty of Mechanical Engineering and Robotics, Department of Machine Design and Technology, Al. Mickiewicza 30, 30-059 Kraków, Poland
| | | | - Michał Szuwarzyński
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland; AGH University of Science and Technology, Academic Centre for Materials and Nanotechnology, Al. Mickiewicza 30, 30-059 Krakow, Poland
| | - Józef Salwiński
- AGH University of Science and Technology, Faculty of Mechanical Engineering and Robotics, Department of Machine Design and Technology, Al. Mickiewicza 30, 30-059 Kraków, Poland
| | - Maria Nowakowska
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland.
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28
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Chen H, Wang H, Li B, Feng B, He X, Fu W, Yuan H, Xu Z. Enhanced chondrogenic differentiation of human mesenchymal stems cells on citric acid-modified chitosan hydrogel for tracheal cartilage regeneration applications. RSC Adv 2018; 8:16910-16917. [PMID: 35540552 PMCID: PMC9080310 DOI: 10.1039/c8ra00808f] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Accepted: 04/30/2018] [Indexed: 11/30/2022] Open
Abstract
Congenital tracheal stenosis in infants and children is a worldwide clinical problem. Tissue engineering is a promising method for correcting long segmental tracheal defects. Nonetheless, the lack of desirable scaffolds always limits the development and applications of tissue engineering in clinical practice. In this study, a citric-acid-functionalized chitosan (CC) hydrogel was fabricated by a freeze–thaw method. Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD) confirmed that citric acid was successfully attached to the chitosan hydrogel. Scanning electron microscopy (SEM) images and compression tests showed that the CC hydrogel had an interconnected porous structure and better wet mechanical properties. Using morphological and proliferation analyses, cell biocompatibility of the CC hydrogel was shown by culturing human mesenchymal stem cells (hMSCs) on it. Specific expression of cartilage-related markers was analyzed by real-time polymerase chain reaction and western blotting. The expression of chondrocytic markers was strongly upregulated in the culture on the CC hydrogel. Hematoxylin and eosin staining revealed that the cells had the characteristic shape of chondrocytes and clustered into the CC hydrogel. Both Alcian blue staining and a sulfated glycosaminoglycan (sGAG) assay indicated that the CC hydrogel promoted the expression of glycosaminoglycans (GAGs). In a nutshell, these results suggested that the CC hydrogel enhanced chondrogenic differentiation of hMSCs. Thus, the newly developed CC hydrogel may be a promising tissue-engineered scaffold for tracheal cartilage regeneration. A novel citric acid functionalized chitosan hydrogel for tracheal cartilage regeneration applications.![]()
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Affiliation(s)
- Hao Chen
- Department of Pediatric Cardiothoracic Surgery
- Shanghai Children's Medical Center Affiliated to Shanghai Jiao Tong University School of Medicine
- Shanghai 200127
- China
| | - Hao Wang
- Department of Pediatric Cardiothoracic Surgery
- Shanghai Children's Medical Center Affiliated to Shanghai Jiao Tong University School of Medicine
- Shanghai 200127
- China
| | - Biyun Li
- School of Life Sciences
- Nantong University
- Nantong
- China
| | - Bei Feng
- Department of Pediatric Cardiothoracic Surgery
- Shanghai Children's Medical Center Affiliated to Shanghai Jiao Tong University School of Medicine
- Shanghai 200127
- China
- Institute of Pediatric Translational Medicine
| | - Xiaomin He
- Department of Pediatric Cardiothoracic Surgery
- Shanghai Children's Medical Center Affiliated to Shanghai Jiao Tong University School of Medicine
- Shanghai 200127
- China
- Institute of Pediatric Translational Medicine
| | - Wei Fu
- Department of Pediatric Cardiothoracic Surgery
- Shanghai Children's Medical Center Affiliated to Shanghai Jiao Tong University School of Medicine
- Shanghai 200127
- China
- Institute of Pediatric Translational Medicine
| | - Huihua Yuan
- School of Life Sciences
- Nantong University
- Nantong
- China
| | - Zhiwei Xu
- Department of Pediatric Cardiothoracic Surgery
- Shanghai Children's Medical Center Affiliated to Shanghai Jiao Tong University School of Medicine
- Shanghai 200127
- China
- Institute of Pediatric Translational Medicine
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Abstract
This review places an emphasis on chitosan intelligent hydrogels. The fabrication methods and mechanisms are introduced in this review and the interactions of the formation of hydrogels with both physical and chemical bonds are also introduced. The relationship between the structural characteristics and the corresponding functions of stimuli-responsive characteristics, self-healing functions and high mechanical strength properties of the chitosan hydrogels are discussed in detail.
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Affiliation(s)
- Jing Fu
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials and Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials
- Hubei University
- Wuhan 430062
- P. R. China
- School of Chemistry and Environment Engineering
| | - Fuchao Yang
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials and Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials
- Hubei University
- Wuhan 430062
- P. R. China
| | - Zhiguang Guo
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials and Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials
- Hubei University
- Wuhan 430062
- P. R. China
- State Key Laboratory of Solid Lubrication
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30
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Sun M, Chi G, Li P, Lv S, Xu J, Xu Z, Xia Y, Tan Y, Xu J, Li L, Li Y. Effects of Matrix Stiffness on the Morphology, Adhesion, Proliferation and Osteogenic Differentiation of Mesenchymal Stem Cells. Int J Med Sci 2018; 15:257-268. [PMID: 29483817 PMCID: PMC5820855 DOI: 10.7150/ijms.21620] [Citation(s) in RCA: 144] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2017] [Accepted: 12/21/2017] [Indexed: 01/05/2023] Open
Abstract
BMMSCs have drawn great interest in tissue engineering and regenerative medicine attributable to their multi-lineage differentiation capacity. Increasing evidence has shown that the mechanical stiffness of extracellular matrix is a critical determinant for stem cell behaviors. However, it remains unknown how matrix stiffness influences MSCs commitment with changes in cell morphology, adhesion, proliferation, self-renewal and differentiation. We employed fibronectin coated polyacrylamide hydrogels with variable stiffnesses ranging from 13 to 68 kPa to modulate the mechanical environment of BMMSCs and found that the morphology and adhesion of BMMSCs were highly dependent on mechanical stiffness. Cells became more spread and more adhesive on substrates of higher stiffness. Similarly, the proliferation of BMMSCs increased as stiffness increased. Sox2 expression was lower during 4h to 1 week on the 13-16 kPa and 62-68 kPa, in contrast, it was higher during 4h to 1 week on the 48-53 kPa. Oct4 expression on 13-16 kPa was higher than 48-53 kPa at 4h, and it has no significant differences at other time point among three different stiffness groups. On 62-68 kPa, BMMSCs were able to be induced toward osteogenic phenotype and generated a markedly high level of RUNX2, ALP, and Osteopontin. The cells exhibited a polygonal morphology and larger spreading area. These results suggest that matrix stiffness modulates commitment of BMMSCs. Our findings may eventually aid in the development of novel, effective biomaterials for the applications in tissue engineering.
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Affiliation(s)
- Meiyu Sun
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, 130021, People's Republic of China
| | - Guangfan Chi
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, 130021, People's Republic of China
| | - Pengdong Li
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, 130021, People's Republic of China
| | - Shuang Lv
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, 130021, People's Republic of China
| | - Juanjuan Xu
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, 130021, People's Republic of China
| | - Ziran Xu
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, 130021, People's Republic of China
| | - Yuhan Xia
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, 130021, People's Republic of China
| | - Ye Tan
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, 130021, People's Republic of China
| | - Jiayi Xu
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, 130021, People's Republic of China
| | - Lisha Li
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, 130021, People's Republic of China
| | - Yulin Li
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, 130021, People's Republic of China
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31
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Kerch G. Polymer hydration and stiffness at biointerfaces and related cellular processes. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2018; 14:13-25. [DOI: 10.1016/j.nano.2017.08.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 08/14/2017] [Accepted: 08/16/2017] [Indexed: 01/15/2023]
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32
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Xu Y, Xia D, Han J, Yuan S, Lin H, Zhao C. Design and fabrication of porous chitosan scaffolds with tunable structures and mechanical properties. Carbohydr Polym 2017; 177:210-216. [DOI: 10.1016/j.carbpol.2017.08.069] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Revised: 05/30/2017] [Accepted: 08/15/2017] [Indexed: 12/17/2022]
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33
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Park SJ, Bostwick JB, De Andrade V, Je JH. Self-spreading of the wetting ridge during stick-slip on a viscoelastic surface. SOFT MATTER 2017; 13:8331-8336. [PMID: 29058731 DOI: 10.1039/c7sm01408b] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Dynamic wetting behaviors on soft solids are important to interpret complex biological processes from cell-substrate interactions. Despite intensive research studies over the past half-century, the underlying mechanisms of spreading behaviors are not clearly understood. The most interesting feature of wetting on soft matter is the formation of a "wetting ridge", a surface deformation by a competition between elasticity and capillarity. Dynamics of the wetting ridge formed at the three-phase contact line underlies the dynamic wetting behaviors, but remains largely unexplored mostly due to limitations in indirect observation. Here, we directly visualize wetting ridge dynamics during continuous- and stick-slip motions on a viscoelastic surface using X-ray microscopy. Strikingly, we discover that the ridge spreads spontaneously during stick and triggers contact line depinning (stick-to-slip transition) by changing the ridge geometry which weakens the contact line pinning. Finally, we clarify 'viscoelastic-braking', 'stick-slipping', and 'stick-breaking' spreading behaviors through the ridge dynamics. In stick-breaking, no ridge-spreading occurs and contact line pinning (hysteresis) is enhanced by cusp-bending while preserving a microscopic equilibrium at the ridge tip. We have furthered the understanding of spreading behaviors on soft solids and demonstrated the value of X-ray microscopy in elucidating various dynamic wetting behaviors on soft solids as well as puzzling biological issues.
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Affiliation(s)
- S J Park
- X-ray Imaging Center, Department of Materials Science and Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang 37673, South Korea.
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34
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Singh YP, Adhikary M, Bhardwaj N, Bhunia BK, Mandal BB. Silk fiber reinforcement modulates
in vitro
chondrogenesis in 3D composite scaffolds. Biomed Mater 2017; 12:045012. [DOI: 10.1088/1748-605x/aa7697] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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35
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Xu J, Sun M, Tan Y, Wang H, Wang H, Li P, Xu Z, Xia Y, Li L, Li Y. Effect of matrix stiffness on the proliferation and differentiation of umbilical cord mesenchymal stem cells. Differentiation 2017; 96:30-39. [PMID: 28753444 DOI: 10.1016/j.diff.2017.07.001] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Revised: 07/09/2017] [Accepted: 07/18/2017] [Indexed: 12/18/2022]
Abstract
Mesenchymal stem cells (MSCs) are a compatible cellular alternative for regenerative medicine and tissue engineering because of their powerful multipotency. Matrix stiffness plays a profound role on stem cell behavior. Nevertheless, the effect of matrix stiffness on umbilical cordmesenchymal stem cells (UC-MSCs) remains unexplored. To conduct an in-depth exploration, we cultured UC-MSCs on different stiffness (Young's modulus: 13-16, 35-38, 48-53, and 62-68 kPa) polyacrylamide gels coated with fibronectin. We found that the proliferation and adhesion of UC-MSCs varied when cultured on the different matrices, and the spreading capacity was stronger as the stiffness increased (*P<0.05). Real-time quantitative PCR results showed that the soft matrix promoted adipogenic differentiation, with higher expression levels of adipocytic markers like PPARγ and C/EBPα (*P<0.05). In contrast, cells tended to differentiate into muscle when cultured on the 48-53 kPa matrix, which was validated by increased expression of myogenic makers like desminand MOYG (*P<0.05). Moreover, increased expression of osteoblastic makers (*P<0.05), such as ALP, collagen type I, osteocalcin, and Runx2, confirmed that cells differentiated into bone on the high-stiffness matrix.
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Affiliation(s)
- Juanjuan Xu
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune Medical College, Jilin University, Changchun, China
| | - Meiyu Sun
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune Medical College, Jilin University, Changchun, China
| | - Ye Tan
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune Medical College, Jilin University, Changchun, China
| | - Haowei Wang
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune Medical College, Jilin University, Changchun, China
| | - Heping Wang
- Department of Neurosurgery, Tongji Hospital, Tongji Medical School, Huazhong University of Science and Technology, Wuhan, China
| | - Pengdong Li
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune Medical College, Jilin University, Changchun, China
| | - Ziran Xu
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune Medical College, Jilin University, Changchun, China
| | - Yuhan Xia
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune Medical College, Jilin University, Changchun, China
| | - Lisha Li
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune Medical College, Jilin University, Changchun, China.
| | - Yulin Li
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune Medical College, Jilin University, Changchun, China.
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36
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Shamekhi MA, Rabiee A, Mirzadeh H, Mahdavi H, Mohebbi-Kalhori D, Baghaban Eslaminejad M. Fabrication and characterization of hydrothermal cross-linked chitosan porous scaffolds for cartilage tissue engineering applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 80:532-542. [PMID: 28866197 DOI: 10.1016/j.msec.2017.03.194] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2016] [Revised: 12/22/2016] [Accepted: 03/21/2017] [Indexed: 01/13/2023]
Abstract
The use of various chemical cross-linking agents for the improvement of scaffolds physical and mechanical properties is a common practical method, which is limited by cytotoxicity effects. Due to exerting contract type forces, chondrocytes are known to implement shrinkage on the tissue engineered constructs, which can be avoided by the scaffold cross-linking. In the this research, chitosan scaffolds are cross-linked with hydrothermal treatment with autoclave sterilization time of 0, 10, 20 and 30min, to avoid the application of the traditional chemical toxic materials. The optimization studies with gel content and crosslink density measurements indicate that for 20min sterilization time, the gel content approaches to ~80%. The scaffolds are fully characterized by the conventional techniques such as SEM, porosity and permeability, XRD, compression, thermal analysis and dynamic mechanical thermal analysis (DMTA). FT-IR studies shows that autoclave inter-chain cross-linking reduces the amine group absorption at 1560cm-1 and increase the absorption of N-acetylated groups at 1629cm-1. It is anticipated, that this observation evidenced by chitosan scaffold browning upon autoclave cross-linking is an indication of the familiar maillard reaction between amine moieties and carbonyl groups. The biodegradation rate analysis shows that chitosan scaffolds with lower concentrations, possess suitable degradation rate for cartilage tissue engineering applications. In addition, cytotoxicity analysis shows that fabricated scaffolds are biocompatible. The human articular chondrocytes seeding into 3D cross-linked scaffolds shows a higher viability and proliferation in comparison with the uncross-linked samples and 2D controls. Investigation of cell morphology on the scaffolds by SEM, shows a more spherical morphology of chondrocytes on the cross-linked scaffolds for 21days of in vitro culture.
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Affiliation(s)
- Mohammad Amin Shamekhi
- Novel Drug Delivery Systems and Biomaterial Department, Science Faculty, Iran Polymer and Petrochemical Institute, Tehran, Iran
| | - Ahmad Rabiee
- Polymer Science Department, Iran Polymer and Petrochemical Institute, Tehran, Iran.
| | - Hamid Mirzadeh
- Department of Polymer Engineering and Color Technology, Amirkabir University of Technology, 424 Hafez Avenue, Tehran, Iran.
| | - Hamid Mahdavi
- Novel Drug Delivery Systems and Biomaterial Department, Science Faculty, Iran Polymer and Petrochemical Institute, Tehran, Iran
| | - Davod Mohebbi-Kalhori
- Chemical Engineering Department, Faculty of Engineering, University of Sistan and Baluchestan, Zahedan, Iran
| | - Mohamadreza Baghaban Eslaminejad
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
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37
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Shu Y, Chan HN, Guan D, Wu H, Ma L. A simple fabricated thickness-based stiffness gradient for cell studies. Sci Bull (Beijing) 2017; 62:222-228. [PMID: 36659410 DOI: 10.1016/j.scib.2016.12.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Revised: 09/23/2016] [Accepted: 10/12/2016] [Indexed: 01/21/2023]
Abstract
In this work, we developed a simple method to fabricate a thickness-based continuous stiffness gradient for biological studies. It was made by glass slides, polydimethylsiloxane (PDMS) pre-polymer, spacer and clips only, without any sophisticated equipment. It is easy to fabricate in any general biological and pharmaceutical laboratories. The stiffness gradient was characterized in terms of apparent Young's modulus by atomic force microscopy (AFM) and the Young's modulus along the gradient was found to be 8.5-120kPa, which is within the physiological relevant range. HeLa-C3 cells were cultured on the gradient to study their morphological behavior according to the substrate stiffness. Furthermore, the drug efficiency of etoposide, an anti-cancer drug, was studied along the substrate stiffness gradient. It was found that HeLa-C3 cells cultured on the soft region of the gradient (8.5-11kPa) are more sensitive to etoposide. We believe the proposed device could promote cell investigations and drug screenings on a substrate with comparable stiffness to the native tissue.
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Affiliation(s)
- Yiwei Shu
- Division of Life Science & Health, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China
| | - Ho Nam Chan
- Department of Chemistry, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Dongshi Guan
- Department of Physics, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Hongkai Wu
- Department of Chemistry, The Hong Kong University of Science and Technology, Hong Kong, China.
| | - Lan Ma
- Division of Life Science & Health, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China.
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38
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Bui L, Aleid A, Alassaf A, Wilson OC, Raub CB, Frenkel V. Development of a custom biological scaffold for investigating ultrasound-mediated intracellular delivery. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 70:461-470. [DOI: 10.1016/j.msec.2016.09.029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 08/08/2016] [Accepted: 09/12/2016] [Indexed: 01/15/2023]
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39
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Demitri C, Giuri A, De Benedictis VM, Raucci MG, Giugliano D, Sannino A, Ambrosio L. Microwave-induced porosity and bioactivation of chitosan-PEGDA scaffolds: morphology, mechanical properties and osteogenic differentiation. J Tissue Eng Regen Med 2016; 11:86-98. [DOI: 10.1002/term.2241] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Revised: 05/02/2016] [Accepted: 06/17/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Christian Demitri
- Department of Engineering for Innovation; University of Salento; Lecce Italy
| | - Antonella Giuri
- Department of Engineering for Innovation; University of Salento; Lecce Italy
| | | | - Maria Grazia Raucci
- Institute of Polymers, Composites and Biomaterials (IPCB); National Research Council of Italy Mostra d'Oltremare Pad.20; Naples Italy
| | - Daniela Giugliano
- Institute of Polymers, Composites and Biomaterials (IPCB); National Research Council of Italy Mostra d'Oltremare Pad.20; Naples Italy
| | - Alessandro Sannino
- Department of Engineering for Innovation; University of Salento; Lecce Italy
| | - Luigi Ambrosio
- Institute of Polymers, Composites and Biomaterials (IPCB); National Research Council of Italy Mostra d'Oltremare Pad.20; Naples Italy
- Department of Chemicals Science and Materials Technology; National Research Council of Italy (DSCTM-CNR); Rome Italy
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40
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Lin CY, Liu TY, Chen MH, Sun JS, Chen MH. An injectable extracellular matrix for the reconstruction of epidural fat and the prevention of epidural fibrosis. ACTA ACUST UNITED AC 2016; 11:035010. [PMID: 27271471 DOI: 10.1088/1748-6041/11/3/035010] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Extensive epidural fibrosis is a common complication following spinal surgery and can cause pain and limited mobility. In the present study, a novel biomimetic approach was developed to prevent postsurgical adhesion of the dura. We aimed to reconstruct epidural fat, which prevents scar-tissue adhesion, through the development of an injectable decellularized adipose matrix (DAM)-containing hyaluronic acid (HA) hydrogel loaded with adipose stromal cells (ASCs). Injectable DAM was prepared from porcine adipose tissue by four freeze-thaw cycles with subsequent pepsin digestion. Residual analyses confirmed the efficacy of detergent-free decellularization, while most sulfated glycosaminoglycans and collagen were preserved. The Transwell migration assay demonstrated the anti-infiltrative property of the DAM-containing HA hydrogel. After 14 d of 3D culture, the DAM-containing HA hydrogel showed inductive potential in the adipogenic differentiation of ASCs. For an in vivo study, the ASC-loaded DAM-containing HA hydrogel (DAM/ASC-incorporated HA hydrogel) was injected into adult laminectomized male rats, and the results were assessed by microscopic histological examination. The in vivo data indicated that HA hydrogel, DAM, and ASCs were all required for the ability of the engineered fat tissue to block the invasion of the fibrous tissue. Our results suggested that this injectable DAM/ASC-incorporated HA hydrogel has potential applications in minimally invasive surgery for soft-tissue reconstruction and epidural fibrosis prevention.
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Affiliation(s)
- Cheng-Yi Lin
- Institute of Biomedical Engineering, National Yang-Ming University, Taipei, Taiwan
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41
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Yuan L, Li B, Yang J, Ni Y, Teng Y, Guo L, Fan H, Fan Y, Zhang X. Effects of Composition and Mechanical Property of Injectable Collagen I/II Composite Hydrogels on Chondrocyte Behaviors. Tissue Eng Part A 2016; 22:899-906. [DOI: 10.1089/ten.tea.2015.0513] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Affiliation(s)
- Lu Yuan
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Bao Li
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Jirong Yang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Yilu Ni
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Yingying Teng
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Likun Guo
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Hongsong Fan
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Yujiang Fan
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
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42
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Chen S, Zhang Q, Nakamoto T, Kawazoe N, Chen G. Gelatin Scaffolds with Controlled Pore Structure and Mechanical Property for Cartilage Tissue Engineering. Tissue Eng Part C Methods 2016; 22:189-98. [DOI: 10.1089/ten.tec.2015.0281] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Affiliation(s)
- Shangwu Chen
- Tissue Regeneration Materials Unit, International Center for Materials Nanoarchitectonics, National Institute for Materials Science, Tsukuba, Japan
- Department of Materials Science and Engineering, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Japan
| | - Qin Zhang
- Tissue Regeneration Materials Unit, International Center for Materials Nanoarchitectonics, National Institute for Materials Science, Tsukuba, Japan
- Department of Materials Science and Engineering, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Japan
| | - Tomoko Nakamoto
- Tissue Regeneration Materials Unit, International Center for Materials Nanoarchitectonics, National Institute for Materials Science, Tsukuba, Japan
| | - Naoki Kawazoe
- Tissue Regeneration Materials Unit, International Center for Materials Nanoarchitectonics, National Institute for Materials Science, Tsukuba, Japan
| | - Guoping Chen
- Tissue Regeneration Materials Unit, International Center for Materials Nanoarchitectonics, National Institute for Materials Science, Tsukuba, Japan
- Department of Materials Science and Engineering, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Japan
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43
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Ghosh S, Kumar SRP, Puri IK, Elankumaran S. Magnetic assembly of 3D cell clusters: visualizing the formation of an engineered tissue. Cell Prolif 2016; 49:134-44. [PMID: 26839975 DOI: 10.1111/cpr.12234] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Accepted: 09/12/2015] [Indexed: 01/05/2023] Open
Abstract
OBJECTIVES Contactless magnetic assembly of cells into 3D clusters has been proposed as a novel means for 3D tissue culture that eliminates the need for artificial scaffolds. However, thus far its efficacy has only been studied by comparing expression levels of generic proteins. Here, it has been evaluated by visualizing the evolution of cell clusters assembled by magnetic forces, to examine their resemblance to in vivo tissues. MATERIALS AND METHODS Cells were labeled with magnetic nanoparticles, then assembled into 3D clusters using magnetic force. Scanning electron microscopy was used to image intercellular interactions and morphological features of the clusters. RESULTS When cells were held together by magnetic forces for a single day, they formed intercellular contacts through extracellular fibers. These kept the clusters intact once the magnetic forces were removed, thus serving the primary function of scaffolds. The cells self-organized into constructs consistent with the corresponding tissues in vivo. Epithelial cells formed sheets while fibroblasts formed spheroids and exhibited position-dependent morphological heterogeneity. Cells on the periphery of a cluster were flattened while those within were spheroidal, a well-known characteristic of connective tissues in vivo. CONCLUSIONS Cells assembled by magnetic forces presented visual features representative of their in vivo states but largely absent in monolayers. This established the efficacy of contactless assembly as a means to fabricate in vitro tissue models.
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Affiliation(s)
- S Ghosh
- Department of Engineering Physics, McMaster University, Hamilton, ON, Canada
| | - S R P Kumar
- Department of Biomedical Sciences and Pathobiology, Virginia-Maryland Regional College of Veterinary Medicine, Virginia Tech, Blacksburg, VA, USA
| | - I K Puri
- Department of Engineering Physics, McMaster University, Hamilton, ON, Canada.,Department of Mechanical Engineering, McMaster University, Hamilton, ON, Canada
| | - S Elankumaran
- Department of Biomedical Sciences and Pathobiology, Virginia-Maryland Regional College of Veterinary Medicine, Virginia Tech, Blacksburg, VA, USA
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Potential of electrospun core–shell structured gelatin–chitosan nanofibers for biomedical applications. Carbohydr Polym 2016; 136:1098-107. [DOI: 10.1016/j.carbpol.2015.10.014] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Revised: 10/04/2015] [Accepted: 10/05/2015] [Indexed: 01/09/2023]
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Liu H, Wang A, Xu X, Wang M, Shang S, Liu S, Song J. Porous aerogels prepared by crosslinking of cellulose with 1,4-butanediol diglycidyl ether in NaOH/urea solution. RSC Adv 2016. [DOI: 10.1039/c6ra07464b] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The cellulose aerogels were prepared by crosslinking of cellulose with 1,4-butanediol diglycidyl in NaOH/urea aqueous solution.
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Affiliation(s)
- He Liu
- Institute of Chemical Industry of Forestry Products
- Chinese Academy of Forestry
- Key Laboratory of Biomass Energy and Material
- National Engineering Laboratory for Biomass Chemical Utilization
- Key and Laboratory on Forest Chemical Engineering
| | - Aiting Wang
- College of Chemical Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- China
| | - Xu Xu
- Institute of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Mengmeng Wang
- College of Chemical Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- China
| | - Shibin Shang
- Institute of Chemical Industry of Forestry Products
- Chinese Academy of Forestry
- Key Laboratory of Biomass Energy and Material
- National Engineering Laboratory for Biomass Chemical Utilization
- Key and Laboratory on Forest Chemical Engineering
| | - Shiwei Liu
- College of Chemical Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- China
| | - Jie Song
- Department of Chemistry and Biochemistry
- University of Michigan-Flint
- Flint
- USA
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Jabeen S, Saeed S, Kausar A, Muhammad B, Gul S, Farooq M. Influence of chitosan and epoxy cross-linking on physical properties of binary blends. INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION 2015. [DOI: 10.1080/1023666x.2016.1131404] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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47
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Nguyen QV, Huynh DP, Park JH, Lee DS. Injectable polymeric hydrogels for the delivery of therapeutic agents: A review. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.03.016] [Citation(s) in RCA: 105] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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48
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Liu IH, Chang SH, Lin HY. Chitosan-based hydrogel tissue scaffolds made by 3D plotting promotes osteoblast proliferation and mineralization. Biomed Mater 2015; 10:035004. [DOI: 10.1088/1748-6041/10/3/035004] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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49
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Kontturi LS, Järvinen E, Muhonen V, Collin EC, Pandit AS, Kiviranta I, Yliperttula M, Urtti A. An injectable, in situ forming type II collagen/hyaluronic acid hydrogel vehicle for chondrocyte delivery in cartilage tissue engineering. Drug Deliv Transl Res 2015; 4:149-58. [PMID: 25786729 DOI: 10.1007/s13346-013-0188-1] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this study, chondrocytes were encapsulated into an injectable, in situ forming type II collagen/hyaluronic acid (HA) hydrogel cross-linked with poly(ethylene glycol) ether tetrasuccinimidyl glutarate (4SPEG) and supplemented with the transforming growth factor β1 (TGFβ1). The chondrocyte-hydrogel constructs were cultured in vitro for 7 days and studied for cell viability and proliferation, morphology, glycosaminoglycan production, and gene expression. Type II collagen/HA/4SPEG formed a strong and stable hydrogel, and the chondrocytes remained viable during the encapsulation process and for the 7-day culture period. In addition, the encapsulated cells showed spherical morphology characteristic for chondrocytic phenotype. The cells were able to produce glycosaminoglycans into their extracellular matrix, and the gene expression of type II collagen and aggrecan, genes specific for differentiated chondrocytes, increased over time. The results indicate that the studied composite hydrogel with incorporated chondrogenic growth factor TGFβ1 is able to maintain chondrocyte viability and characteristics, and thus, it can be regarded as potential injectable cell delivery vehicle for cartilage tissue engineering.
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Affiliation(s)
- Leena-Stiina Kontturi
- Centre for Drug Research, Faculty of Pharmacy, University of Helsinki, Viikinkaari 5, 00790, Helsinki, Finland,
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Siddiqui N, Pramanik K, Jabbari E. Osteogenic differentiation of human mesenchymal stem cells in freeze-gelled chitosan/nano β-tricalcium phosphate porous scaffolds crosslinked with genipin. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 54:76-83. [PMID: 26046270 DOI: 10.1016/j.msec.2015.05.005] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Revised: 02/28/2015] [Accepted: 05/02/2015] [Indexed: 11/16/2022]
Abstract
The objective of this work was to investigate material properties and osteogenic differentiation of human mesenchymal stem cells (hMSCs) in genipin (GN) crosslinked chitosan/nano β-tricalcium phosphate (CS/nano β-TCP) scaffolds, and compare the results with tripolyphosphate (TPP) crosslinked scaffolds. Porous crosslinked CS/nano β-TCP scaffolds were produced by freeze-gelation using GN (CBG scaffold) and TPP (CBT scaffold) as crosslinkers. The prepared CBT and CBG scaffolds were characterized with respect to porosity, pore size, water content, wettability, compressive strength, mass loss, and osteogenic differentiation of hMSCs. All scaffolds displayed interconnected honeycomb-like microstructures. There was a significant difference between the average pore size, porosity, contact angle, and percent swelling of CBT and CBG scaffolds. The average pore size of CBG scaffolds was higher than CBT, the porosity of CBG was lower than CBT, the water contact angle of CBG was higher than CBT, and the percent swelling of CBG was lower than CBT. At a given crosslinker concentration, there was not a significant difference in compressive modulus and mass loss of CBG and CBT scaffolds. Metabolic activity of hMSCs seeded in CBG scaffolds was slightly higher than CBT. Furthermore, CBG scaffolds displayed slightly higher extent of mineralization after 21 days of incubation in osteogenic medium compared to CBT.
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Affiliation(s)
- Nadeem Siddiqui
- Department of Biotechnology and Medical Engineering, National Institute of Technology, Rourkela 769008, India
| | - Krishna Pramanik
- Department of Biotechnology and Medical Engineering, National Institute of Technology, Rourkela 769008, India
| | - Esmaiel Jabbari
- Biomimetic Materials and Tissue Engineering Laboratory, Department of Chemical Engineering, University of South Carolina, Columbia, SC, USA.
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