1
|
Shih YF, Lin SH, Xu J, Su CJ, Huang CF, Hsu SH. Stretchable and biodegradable chitosan-polyurethane-cellulose nanofiber composites as anisotropic materials. Int J Biol Macromol 2023; 230:123116. [PMID: 36603720 DOI: 10.1016/j.ijbiomac.2022.123116] [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: 10/28/2022] [Revised: 12/27/2022] [Accepted: 12/29/2022] [Indexed: 01/04/2023]
Abstract
Chitosan is a naturally derived biodegradable polymer with abundancy, sustainability, and ease of chemical modification. Polyurethanes are a family of elastic biocompatible polymers, and composites of polyurethanes have versatile properties and applications. Chitosan-polyurethane composites were recently developed but had insufficient strength and limited stretchability. In the current study, cellulose nanofibers (CNFs) were integrated in chitosan-polyurethane composites to prepare stretchable and anisotropic materials. A biodegradable polyurethane was first synthesized, end-capped with aldehyde to become dialdehyde polyurethane (DP) nanoparticles, and added with CNFs to prepare the DP-CNF composite crosslinker (DPF). The waterborne DPF crosslinker was then blended with chitosan solution to make polyurethane-CNF-chitosan (DPFC) composites. After blending, DPFC may form hydrogel in ~33 min at room temperature, which confirmed crosslinking. Composite films cast and dried from the blends showed good elongation (~420.2 %) at 60 °C. Anisotropic films were then generated by tension annealing with pre-strain. The annealed films with 200 % pre-strain exhibited large elastic anisotropy with ~4.9 anisotropic ratio. In situ SAXS/WAXS analyses unveiled that rearrangement and alignment of the microstructure during tension annealing accounted for the anisotropy. The anisotropic composite films had the ability to orient the growth of neural stem cells and showed the potential for biomimetic and tissue engineering applications.
Collapse
Affiliation(s)
- Yu-Feng Shih
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei, Taiwan, Republic of China
| | - Shih-Ho Lin
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei, Taiwan, Republic of China
| | - Junpeng Xu
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei, Taiwan, Republic of China
| | - Chun-Jen Su
- National Synchrotron Radiation Research Center, Hsinchu Science Park, Hsinchu, Taiwan, Republic of China
| | - Chih-Feng Huang
- Department of Chemical Engineering, National Chung Hsing University, Taichung, Taiwan, Republic of China
| | - Shan-Hui Hsu
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei, Taiwan, Republic of China; Institute of Cellular and System Medicine, National Health Research Institutes, Miaoli, Taiwan, Republic of China.
| |
Collapse
|
2
|
Allahyari Z, Casillo SM, Perry SJ, Peredo AP, Gholizadeh S, Gaborski TR. Disrupted Surfaces of Porous Membranes Reduce Nuclear YAP Localization and Enhance Adipogenesis through Morphological Changes. ACS Biomater Sci Eng 2022; 8:1791-1798. [PMID: 35363465 DOI: 10.1021/acsbiomaterials.1c01472] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The disrupted surface of porous membranes, commonly used in tissue-chip and cellular coculture systems, is known to weaken cell-substrate interactions. Here, we investigated whether disrupted surfaces of membranes with micron and submicron scale pores affect yes-associated protein (YAP) localization and differentiation of adipose-derived stem cells. We found that these substrates reduce YAP nuclear localization through decreased cell spreading, consistent with reduced cell-substrate interactions, and in turn enhance adipogenesis while decreasing osteogenesis.
Collapse
Affiliation(s)
- Zahra Allahyari
- Department of Microsystems Engineering, Rochester Institute of Technology, 160 Lomb Memorial Drive, Rochester, New York 14623, United States.,Department of Biomedical Engineering, Rochester Institute of Technology, 160 Lomb Memorial Drive, Rochester, New York 14623, United States
| | - Stephanie M Casillo
- Department of Biomedical Engineering, Rochester Institute of Technology, 160 Lomb Memorial Drive, Rochester, New York 14623, United States
| | - Spencer J Perry
- Department of Biomedical Engineering, Rochester Institute of Technology, 160 Lomb Memorial Drive, Rochester, New York 14623, United States
| | - Ana P Peredo
- Department of Biomedical Engineering, Rochester Institute of Technology, 160 Lomb Memorial Drive, Rochester, New York 14623, United States
| | - Shayan Gholizadeh
- Department of Microsystems Engineering, Rochester Institute of Technology, 160 Lomb Memorial Drive, Rochester, New York 14623, United States.,Department of Biomedical Engineering, Rochester Institute of Technology, 160 Lomb Memorial Drive, Rochester, New York 14623, United States
| | - Thomas R Gaborski
- Department of Biomedical Engineering, Rochester Institute of Technology, 160 Lomb Memorial Drive, Rochester, New York 14623, United States
| |
Collapse
|
3
|
Yu C, Yang H, Wang L, Thomson JA, Turng LS, Guan G. Surface modification of polytetrafluoroethylene (PTFE) with a heparin-immobilized extracellular matrix (ECM) coating for small-diameter vascular grafts applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 128:112301. [PMID: 34474852 PMCID: PMC8417426 DOI: 10.1016/j.msec.2021.112301] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/08/2021] [Accepted: 07/05/2021] [Indexed: 11/16/2022]
Abstract
Intimal hyperplasia, thrombosis formation, and delayed endothelium regeneration are the main causes that restrict the clinical applications of PTFE small-diameter vascular grafts (inner diameter < 6 mm). An ideal strategy to solve such problems is to facilitate in situ endothelialization. Since the natural vascular endothelium adheres onto the basement membrane, which is a specialized form of extracellular matrix (ECM) secreted by endothelial cells (ECs) and smooth muscle cells (SMCs), functionalizing PTFE with an ECM coating was proposed. However, besides ECs, the ECM-modified PTFE improved SMC growth as well, thereby increasing the risk of intimal hyperplasia. In the present study, heparin was immobilized on the ECM coating at different densities (4.89 ± 1.02 μg/cm2, 7.24 ± 1.56 μg/cm2, 15.63 ± 2.45 μg/cm2, and 26.59 ± 3.48 μg/cm2), aiming to develop a bio-favorable environment that possessed excellent hemocompatibility and selectively inhibited SMC growth while promoting endothelialization. The results indicated that a low heparin density (4.89 ± 1.02 μg/cm2) was not enough to restrict platelet adhesion, whereas a high heparin density (26.59 ± 3.48 μg/cm2) resulted in decreased EC growth and enhanced SMC proliferation. Therefore, a heparin density at 7.24 ± 1.56 μg/cm2 was the optimal level in terms of antithrombogenicity, endothelialization, and SMC inhibition. Collectively, this study proposed a heparin-immobilized ECM coating to modify PTFE, offering a promising means to functionalize biomaterials for developing small-diameter vascular grafts.
Collapse
Affiliation(s)
- Chenglong Yu
- Key Laboratory of Textile Industry for Biomedical Textile Materials and Technology, College of Textiles, Donghua University, Shanghai 201620, China; Engineering Research Center of Technical Textiles of Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China; Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI 53715, United States; Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, WI 53706, United States
| | - Huaguang Yang
- Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI 53715, United States; Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, WI 53706, United States
| | - Lu Wang
- Key Laboratory of Textile Industry for Biomedical Textile Materials and Technology, College of Textiles, Donghua University, Shanghai 201620, China; Engineering Research Center of Technical Textiles of Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China
| | - James A Thomson
- Morgridge Institute for Research, University of Wisconsin-Madison, Madison, WI 53715, United States
| | - Lih-Sheng Turng
- Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI 53715, United States; Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, WI 53706, United States.
| | - Guoping Guan
- Key Laboratory of Textile Industry for Biomedical Textile Materials and Technology, College of Textiles, Donghua University, Shanghai 201620, China; Engineering Research Center of Technical Textiles of Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China.
| |
Collapse
|
4
|
Sun M, Han K, Hu R, Liu D, Fu W, Liu W. Advances in Micro/Nanoporous Membranes for Biomedical Engineering. Adv Healthc Mater 2021; 10:e2001545. [PMID: 33511718 DOI: 10.1002/adhm.202001545] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 01/19/2021] [Indexed: 12/11/2022]
Abstract
Porous membrane materials at the micro/nanoscale have exhibited practical and potential value for extensive biological and medical applications associated with filtration and isolation, cell separation and sorting, micro-arrangement, in-vitro tissue reconstruction, high-throughput manipulation and analysis, and real-time sensing. Herein, an overview of technological development of micro/nanoporous membranes (M/N-PMs) is provided. Various membrane types and the progress documented in membrane fabrication techniques, including the electrochemical-etching, laser-based technology, microcontact printing, electron beam lithography, imprinting, capillary force lithography, spin coating, and microfluidic molding are described. Their key features, achievements, and limitations associated with micro/nanoporous membrane (M/N-PM) preparation are discussed. The recently popularized applications of M/N-PMs in biomedical engineering involving the separation of cells and biomolecules, bioparticle operations, biomimicking, micropatterning, bioassay, and biosensing are explored too. Finally, the challenges that need to be overcome for M/N-PM fabrication and future applications are highlighted.
Collapse
Affiliation(s)
- Meilin Sun
- School of Basic Medical Science Central South University Changsha Hunan 410013 China
| | - Kai Han
- School of Basic Medical Science Central South University Changsha Hunan 410013 China
| | - Rui Hu
- School of Basic Medical Science Central South University Changsha Hunan 410013 China
| | - Dan Liu
- School of Basic Medical Science Central South University Changsha Hunan 410013 China
| | - Wenzhu Fu
- School of Basic Medical Science Central South University Changsha Hunan 410013 China
| | - Wenming Liu
- School of Basic Medical Science Central South University Changsha Hunan 410013 China
| |
Collapse
|
5
|
van Genderen AM, Jansen K, Kristen M, van Duijn J, Li Y, Schuurmans CCL, Malda J, Vermonden T, Jansen J, Masereeuw R, Castilho M. Topographic Guidance in Melt-Electrowritten Tubular Scaffolds Enhances Engineered Kidney Tubule Performance. Front Bioeng Biotechnol 2021; 8:617364. [PMID: 33537294 PMCID: PMC7848123 DOI: 10.3389/fbioe.2020.617364] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 12/16/2020] [Indexed: 11/13/2022] Open
Abstract
Introduction: To date, tubular tissue engineering relies on large, non-porous tubular scaffolds (Ø > 2 mm) for mechanical self-support, or smaller (Ø 150-500 μm) tubes within bulk hydrogels for studying renal transport phenomena. To advance the engineering of kidney tubules for future implantation, constructs should be both self-supportive and yet small-sized and highly porous. Here, we hypothesize that the fabrication of small-sized porous tubular scaffolds with a highly organized fibrous microstructure by means of melt-electrowriting (MEW) allows the development of self-supported kidney proximal tubules with enhanced properties. Materials and Methods: A custom-built melt-electrowriting (MEW) device was used to fabricate tubular fibrous scaffolds with small diameter sizes (Ø = 0.5, 1, 3 mm) and well-defined, porous microarchitectures (rhombus, square, and random). Human umbilical vein endothelial cells (HUVEC) and human conditionally immortalized proximal tubular epithelial cells (ciPTEC) were seeded into the tubular scaffolds and tested for monolayer formation, integrity, and organization, as well as for extracellular matrix (ECM) production and renal transport functionality. Results: Tubular fibrous scaffolds were successfully manufactured by fine control of MEW instrument parameters. A minimum inner diameter of 1 mm and pore sizes of 0.2 mm were achieved and used for subsequent cell experiments. While HUVEC were unable to bridge the pores, ciPTEC formed tight monolayers in all scaffold microarchitectures tested. Well-defined rhombus-shaped pores outperformed and facilitated unidirectional cell orientation, increased collagen type IV deposition, and expression of the renal transporters and differentiation markers organic cation transporter 2 (OCT2) and P-glycoprotein (P-gp). Discussion and Conclusion: Here, we present smaller diameter engineered kidney tubules with microgeometry-directed cell functionality. Due to the well-organized tubular fiber scaffold microstructure, the tubes are mechanically self-supported, and the self-produced ECM constitutes the only barrier between the inner and outer compartment, facilitating rapid and active solute transport.
Collapse
Affiliation(s)
- Anne Metje van Genderen
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, Netherlands
| | - Katja Jansen
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, Netherlands
| | - Marleen Kristen
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, Netherlands.,Department of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
| | - Joost van Duijn
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands.,Regenerative Medicine Center Utrecht, University Medical Center Utrecht, Utrecht, Netherlands
| | - Yang Li
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands.,Regenerative Medicine Center Utrecht, University Medical Center Utrecht, Utrecht, Netherlands
| | - Carl C L Schuurmans
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, Netherlands.,Division of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, Netherlands
| | - Jos Malda
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands.,Regenerative Medicine Center Utrecht, University Medical Center Utrecht, Utrecht, Netherlands.,Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | - Tina Vermonden
- Regenerative Medicine Center Utrecht, University Medical Center Utrecht, Utrecht, Netherlands.,Division of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, Netherlands
| | - Jitske Jansen
- Department of Pathology and Pediatric Nephrology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, Netherlands
| | - Rosalinde Masereeuw
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, Netherlands.,Regenerative Medicine Center Utrecht, University Medical Center Utrecht, Utrecht, Netherlands
| | - Miguel Castilho
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands.,Regenerative Medicine Center Utrecht, University Medical Center Utrecht, Utrecht, Netherlands.,Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, Netherlands
| |
Collapse
|
6
|
Allahyari Z, Gholizadeh S, Chung HH, Delgadillo LF, Gaborski TR. Micropatterned Poly(ethylene glycol) Islands Disrupt Endothelial Cell-Substrate Interactions Differently from Microporous Membranes. ACS Biomater Sci Eng 2019; 6:959-968. [PMID: 32582838 DOI: 10.1021/acsbiomaterials.9b01584] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Porous membranes are ubiquitous in cell co-culture and tissue-on-a-chip studies. These materials are predominantly chosen for their semi-permeable and size exclusion properties to restrict or permit transmigration and cell-cell communication. However, previous studies have shown pore size, spacing and orientation affect cell behavior including extracellular matrix production and migration. The mechanism behind this behavior is not fully understood. In this study, we fabricated micropatterned non-fouling polyethylene glycol (PEG) islands to mimic pore openings in order to decouple the effect of surface discontinuity from potential grip on the vertical contact area provided by pore wall edges. Similar to previous findings on porous membranes, we found that the PEG islands hindered fibronectin fibrillogenesis with cells on patterned substrates producing shorter fibrils. Additionally, cell migration speed over micropatterned PEG islands was greater than unpatterned controls, suggesting that disruption of cell-substrate interactions by PEG islands promoted a more dynamic and migratory behavior, similarly to enhanced cell migration on microporous membranes. Preferred cellular directionality during migration was nearly indistinguishable between substrates with identically patterned PEG islands and previously reported behavior over micropores of the same geometry, further confirming disruption of cell-substrate interactions as a common mechanism behind the cellular responses on these substrates. Interestingly, compared to respective controls, there were differences in cell spreading and a lower increase in migration speed over PEG islands compared prior results on micropores with identical feature size and spacing. This suggests that membrane pores not only disrupt cell-substrate interactions, but also provide additional physical factors that affect cellular response.
Collapse
Affiliation(s)
- Zahra Allahyari
- Department of Microsystems Engineering, Rochester Institute of Technology, 160 Lomb Memorial Drive, Rochester, NY 14623, USA.,Department of Biomedical Engineering, Rochester Institute of Technology, 160 Lomb Memorial Drive, Rochester, NY 14623, USA
| | - Shayan Gholizadeh
- Department of Microsystems Engineering, Rochester Institute of Technology, 160 Lomb Memorial Drive, Rochester, NY 14623, USA.,Department of Biomedical Engineering, Rochester Institute of Technology, 160 Lomb Memorial Drive, Rochester, NY 14623, USA
| | - Henry H Chung
- Department of Biomedical Engineering, Rochester Institute of Technology, 160 Lomb Memorial Drive, Rochester, NY 14623, USA
| | - Luis F Delgadillo
- Department of Biomedical Engineering, University of Rochester, 201 Robert B. Goergen Hall, Rochester, NY 14627, USA
| | - Thomas R Gaborski
- Department of Microsystems Engineering, Rochester Institute of Technology, 160 Lomb Memorial Drive, Rochester, NY 14623, USA.,Department of Biomedical Engineering, Rochester Institute of Technology, 160 Lomb Memorial Drive, Rochester, NY 14623, USA.,Department of Biomedical Engineering, University of Rochester, 201 Robert B. Goergen Hall, Rochester, NY 14627, USA
| |
Collapse
|
7
|
Zhang W, Wang Z, Xie C, Wang X, Luo F, Hong M, Zhou R, Ma C, Lin N, Zhang J, Hu X, Chan JKY, Wen F, Wang Y. Scaffold with Micro/Macro-Architecture for Myocardial Alignment Engineering into Complex 3D Cell Patterns. Adv Healthc Mater 2019; 8:e1901015. [PMID: 31599123 DOI: 10.1002/adhm.201901015] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 09/26/2019] [Indexed: 12/21/2022]
Abstract
Tissue structural anisotropy is an important basis for heart function. Attempts to regenerate the complicated heart-tissue alignment has rarely featured macroscale 3D constructs required for myocardial tissue engineering. The feasibility of engineered scaffolds with micro/macro-architecture for guiding spatial cell alignment following complex patterns is reported. The scaffold is composed of stackable dual-structured layers with linear micro-ridge/groove patterns and macro-through-hole arrays, which enable tailorable anisotropy and interconnective free space. When human mesenchymal stem cells are seeded on the scaffold, well-organized spreading alignment showing the precise control in cellular orientation is significantly introduced over nonpatterned controls. Moreover, spatial cell distribution in the scaffold and directional changes of the layered linear patterns that made cell alignment orientations turning accordingly are observed, leading to the complex 3D pattern reconstruction of cellular alignment resembling natural myocardial tissue. This work validates the potential of micro/macro-architecture engineering for spatial cell guidance. Scaffolds with this capability can be potentially used for biomanufacturing of the structural alignment in myocardial tissue engineering.
Collapse
Affiliation(s)
- Wanqi Zhang
- College of Materials Science and EngineeringHunan University Changsha 410082 P. R. China
| | - Zuyong Wang
- College of Materials Science and EngineeringHunan University Changsha 410082 P. R. China
| | - Chao Xie
- Department of Vascular SurgeryXiangya HospitalCentral South University Changsha 410008 P. R. China
| | - Xianwei Wang
- Department of Vascular SurgeryXiangya HospitalCentral South University Changsha 410008 P. R. China
| | - Fangfang Luo
- School of ScienceHuzhou University Huzhou Zhejiang 313000 P. R. China
| | - Minghui Hong
- Department of Electrical and Computer EngineeringNational University of Singapore Singapore 117576 Singapore
| | - Rui Zhou
- School of Aerospace EngineeringXiamen University Xiamen 361102 P. R. China
| | - Chao Ma
- College of Materials Science and EngineeringHunan University Changsha 410082 P. R. China
| | - Nan Lin
- College of Materials Science and EngineeringHunan University Changsha 410082 P. R. China
| | - Jieyu Zhang
- National Engineering Research Center for BiomaterialsSichuan University Chengdu 610065 P. R. China
| | - Xuefeng Hu
- National Engineering Research Center for BiomaterialsSichuan University Chengdu 610065 P. R. China
| | - Jerry Kok Yen Chan
- Department of Reproductive MedicineKK Women's and Children's Hospital Singapore 229899 Singapore
| | - Feng Wen
- School of Chemical and Biomedical EngineeringNanyang Technological University Singapore 637457 Singapore
| | - Yunbing Wang
- National Engineering Research Center for BiomaterialsSichuan University Chengdu 610065 P. R. China
| |
Collapse
|
8
|
Gupta P, Moses JC, Mandal BB. Surface Patterning and Innate Physicochemical Attributes of Silk Films Concomitantly Govern Vascular Cell Dynamics. ACS Biomater Sci Eng 2018; 5:933-949. [PMID: 33405850 DOI: 10.1021/acsbiomaterials.8b01194] [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] [Indexed: 11/30/2022]
Abstract
Functional impairment of vascular cells is associated with cardiovascular pathologies. Recent literature clearly presents evidence relating cell microenvironment and their function. It is crucial to understand the cell-material interaction while designing a functional tissue engineered vascular graft. Natural silk biopolymer has shown potential for various tissue-engineering applications. In the present work, we aimed to explore the combinatorial effect of variable innate physicochemical properties and topographies of silk films on functional behavior of vascular cells. Silk proteins from different varieties (mulberry Bombyx mori, BM; and non-mulberry Antheraea assama, AA) possess unique inherent amino acid composition that leads to variable surface properties (roughness, wettability, chemistry, and mechanical stiffness). In addition, we engineered the silk film surfaces and printed a microgrooved pattern to induce unidirectional cell orientation mimicking their native form. Patterned silk films induced unidirectional alignment of porcine vascular cells. Regardless of alignment, endothelial cells (ECs) proliferated favorably on AA films; however, it suppressed production of nitric oxide (NO), an endogenous vasodilator. Unidirectional alignment of smooth muscle cells (SMCs) encouraged contractile phenotype as indicated by minimal cell proliferation, increment of quiescent (G0) phase cells, and upregulation of contractile genes. Moderately hydrophilic flat BM films induced cell aggregation and augmented the expression of contractile genes (for SMCs) and endothelial nitric oxide synthase, eNOS (for ECs). Functional studies further confirmed SMCs' alignment improving collagen production, remodeling ability (matrix metalloproteinase, MMP-2 and MMP-9 production) and physical contraction. Altogether, this study confirms vascular cells' functional behavior is crucially regulated by synergistic effect of their alignment and cell-substrate interfacial properties.
Collapse
Affiliation(s)
- Prerak Gupta
- Biomaterial and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India
| | - Joseph Christakiran Moses
- Biomaterial and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India
| | - Biman B Mandal
- Biomaterial and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India
| |
Collapse
|
9
|
Wang Z, Lee WJ, Koh BTH, Hong M, Wang W, Lim PN, Feng J, Park LS, Kim M, Thian ES. Functional regeneration of tendons using scaffolds with physical anisotropy engineered via microarchitectural manipulation. SCIENCE ADVANCES 2018; 4:eaat4537. [PMID: 30345353 PMCID: PMC6195336 DOI: 10.1126/sciadv.aat4537] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 09/07/2018] [Indexed: 05/22/2023]
Abstract
Structural and hierarchical anisotropy underlies the structure-function relationship of most living tissues. Attempts to exploit the interplay between cells and their immediate environment have rarely featured macroscale, three-dimensional constructs required for clinical applications. Furthermore, compromises to biomechanical robustness during fabrication often limit the scaffold's relevance in translational medicine. We report a polymeric three-dimensional scaffold with tendon-like mechanical properties and controlled anisotropic microstructures. The scaffold was composed of two distinct portions, which enabled high porosity while retaining tendon-like mechanical properties. When tenocytes were cultured in vitro on the scaffold, phenotypic markers of tenogenesis such as type-I collagen, decorin, and tenascin were significantly expressed over nonanisotropic controls. Moreover, highly aligned intracellular cytoskeletal network and high nuclear alignment efficiencies were observed, suggesting that microstructural anisotropy might play the epigenetic role of mechanotransduction. When implanted in an in vivo micropig model, a neotissue that formed over the scaffold resembled native tendon tissue in composition and structure.
Collapse
Affiliation(s)
- Z. Wang
- Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117 576, Singapore
- College of Materials Science and Engineering, Hunan University, Changsha 410082, P.R. China
| | - W. J. Lee
- Prestige BioResearch Pte Ltd, 15 Tech Park Crescent, Singapore 638117, Singapore
- College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea
| | - B. T. H. Koh
- Department of Orthopaedic Surgery, National University of Singapore, 5 Lower Kent Ridge Road, Singapore 119 074, Singapore
| | - M. Hong
- Department of Electrical and Computer Engineering, National University of Singapore, 2 Engineering Drive 3, Singapore 117576, Singapore
| | - W. Wang
- Department of Orthopaedic Surgery, National University of Singapore, 5 Lower Kent Ridge Road, Singapore 119 074, Singapore
| | - P. N. Lim
- Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117 576, Singapore
| | - J. Feng
- Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117 576, Singapore
| | - L. S. Park
- Prestige BioResearch Pte Ltd, 15 Tech Park Crescent, Singapore 638117, Singapore
| | - M. Kim
- Prestige BioResearch Pte Ltd, 15 Tech Park Crescent, Singapore 638117, Singapore
| | - E. S. Thian
- Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117 576, Singapore
| |
Collapse
|
10
|
Chung HH, Mireles M, Kwarta BJ, Gaborski TR. Use of porous membranes in tissue barrier and co-culture models. LAB ON A CHIP 2018; 18:1671-1689. [PMID: 29845145 PMCID: PMC5997570 DOI: 10.1039/c7lc01248a] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Porous membranes enable the partitioning of cellular microenvironments in vitro, while still allowing physical and biochemical crosstalk between cells, a feature that is often necessary for recapitulating physiological functions. This article provides an overview of the different membranes used in tissue barrier and cellular co-culture models with a focus on experimental design and control of these systems. Specifically, we discuss how the structural, mechanical, chemical, and even the optical and transport properties of different membranes bestow specific advantages and disadvantages through the context of physiological relevance. This review also explores how membrane pore properties affect perfusion and solute permeability by developing an analytical framework to guide the design and use of tissue barrier or co-culture models. Ultimately, this review offers insight into the important aspects one must consider when using porous membranes in tissue barrier and lab-on-a-chip applications.
Collapse
Affiliation(s)
- Henry H Chung
- Department of Biomedical Engineering, Rochester Institute of Technology, Rochester, NY, USA.
| | | | | | | |
Collapse
|
11
|
Wu ML, Panduranga MK, Carman GP. Proliferation of human aortic endothelial cells on Nitinol thin films with varying hole sizes. Biomed Microdevices 2018; 20:25. [PMID: 29484503 DOI: 10.1007/s10544-018-0267-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
In this paper, we present the effect of micron size holes on proliferation and growth of human aortic endothelial cells (HAECs). Square shaped micron size holes (5, 10, 15, 20 and 25 μm) separated by 10 μm wide struts are fabricated on 5 μm thick sputter deposited Nitinol films. HAECs are seeded onto these micropatterned films and analyzed after 30 days with fluorescence microscopy. Captured images are used to quantify the nucleus packing density, size, and aspect ratio. The films with holes ranging from 10 to 20 μm produce the highest cell packing densities with cell nucleus contained within the hole. This produces a geometrically regular grid like cellular distribution pattern. The cell nucleus aspect ratio on the 10-20 μm holes is more circular in shape when compared to aspect ratio on the continuous film or larger size holes. Finally, the 25 μm size holes prevented the formation of a continuous cell monolayer, suggesting the critical length that cells cannot bridge is between 20 to 25 μm.
Collapse
Affiliation(s)
- Ming Lun Wu
- Department of Bioengineering, University of California, Los Angeles, CA, 90095, USA.
| | - Mohanchandra K Panduranga
- Department of Aerospace & Mechanical Engineering, University of California, Los Angeles, CA, 90095, USA
| | - Gregory P Carman
- Department of Bioengineering, University of California, Los Angeles, CA, 90095, USA
- Department of Aerospace & Mechanical Engineering, University of California, Los Angeles, CA, 90095, USA
| |
Collapse
|
12
|
Wang Z, Zhou R, Wen F, Zhang R, Ren L, Teoh SH, Hong M. Reliable laser fabrication: the quest for responsive biomaterials surface. J Mater Chem B 2018; 6:3612-3631. [DOI: 10.1039/c7tb02545a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
This review presents current efforts in laser fabrication, focusing on the surface features of biomaterials and their biological responses; this provides insight into the engineering of bio-responsive surfaces for future medical devices.
Collapse
Affiliation(s)
- Zuyong Wang
- College of Materials Science and Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Rui Zhou
- School of Aerospace Engineering
- Xiamen University
- Xiamen 361005
- P. R. China
| | - Feng Wen
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore 637457
- Singapore
| | - Rongkai Zhang
- The Third Affiliated Hospital of Southern Medical University
- Guangzhou 510630
- P. R. China
| | - Lei Ren
- College of Materials Science
- Xiamen University
- Xiamen 361005
- P. R. China
| | - Swee Hin Teoh
- College of Materials Science and Engineering
- Hunan University
- Changsha 410082
- P. R. China
- School of Chemical and Biomedical Engineering
| | - Minghui Hong
- School of Aerospace Engineering
- Xiamen University
- Xiamen 361005
- P. R. China
- Department of Electrical and Computer Engineering
| |
Collapse
|
13
|
Wang Z, Wen F, Lim PN, Zhang Q, Konishi T, Wang D, Teoh SH, Thian ES. Nanomaterial scaffolds to regenerate musculoskeletal tissue: signals from within for neovessel formation. Drug Discov Today 2017; 22:1385-1391. [DOI: 10.1016/j.drudis.2017.03.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Revised: 02/20/2017] [Accepted: 03/20/2017] [Indexed: 01/13/2023]
|
14
|
Carter RN, Casillo SM, Mazzocchi AR, DesOrmeaux JPS, Roussie JA, Gaborski TR. Ultrathin transparent membranes for cellular barrier and co-culture models. Biofabrication 2017; 9:015019. [PMID: 28140345 DOI: 10.1088/1758-5090/aa5ba7] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Typical in vitro barrier and co-culture models rely upon thick semi-permeable polymeric membranes that physically separate two compartments. Polymeric track-etched membranes, while permeable to small molecules, are far from physiological with respect to physical interactions with co-cultured cells and are not compatible with high-resolution imaging due to light scattering and autofluorescence. Here we report on an optically transparent ultrathin membrane with porosity exceeding 20%. We optimize deposition and annealing conditions to create a tensile and robust porous silicon dioxide membrane that is comparable in thickness to the vascular basement membrane (100-300 nm). We demonstrate that human umbilical vein endothelial cells (HUVECs) spread and proliferate on these membranes similarly to control substrates. Additionally, HUVECs are able to transfer cytoplasmic cargo to adipose-derived stem cells when they are co-cultured on opposite sides of the membrane, demonstrating its thickness supports physiologically relevant cellular interactions. Lastly, we confirm that these porous glass membranes are compatible with lift-off processes yielding membrane sheets with an active area of many square centimeters. We believe that these membranes will enable new in vitro barrier and co-culture models while offering dramatically improved visualization compared to conventional alternatives.
Collapse
Affiliation(s)
- Robert N Carter
- Department of Biomedical Engineering, Rochester Institute of Technology, Rochester, NY 14623, United States of America. Department of Mechanical Engineering, Rochester Institute of Technology, Rochester, NY 14623, United States of America
| | | | | | | | | | | |
Collapse
|
15
|
Zhang C, Min Y, Bai Y, Gu J, Sun Y. Fabrication and characterization of chlorinated polyvinyl chloride microporous membranes via thermally induced phase separation process. J Appl Polym Sci 2016. [DOI: 10.1002/app.44346] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Chunfang Zhang
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education School of Chemical and Material Engineering; Jiangnan University; Wuxi 214122 People's Republic of China
| | - Ying Min
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education School of Chemical and Material Engineering; Jiangnan University; Wuxi 214122 People's Republic of China
| | - Yunxiang Bai
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education School of Chemical and Material Engineering; Jiangnan University; Wuxi 214122 People's Republic of China
| | - Jin Gu
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education School of Chemical and Material Engineering; Jiangnan University; Wuxi 214122 People's Republic of China
| | - Yuping Sun
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education School of Chemical and Material Engineering; Jiangnan University; Wuxi 214122 People's Republic of China
| |
Collapse
|
16
|
Gao Y, Lim J, Yeo DCL, Liao S, Lans M, Wang Y, Teoh SH, Goh BT, Xu C. A Selective and Purification-Free Strategy for Labeling Adherent Cells with Inorganic Nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2016; 8:6336-6343. [PMID: 26928268 DOI: 10.1021/acsami.5b12409] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Cellular labeling with inorganic nanoparticles such as magnetic iron oxide nanoparticles, quantum dots, and fluorescent silica nanoparticles is an important method for the noninvasive visualization of cells using various imaging modalities. Currently, this is mainly achieved through the incubation of cultured cells with the nanoparticles that eventually reach the intracellular compartment through specific or nonspecific internalization. This classic method is advantageous in terms of simplicity and convenience, but it suffers from issues such as difficulties in fully removing free nanoparticles (suspended in solution) and the lack of selectivity on cell types. This article reports an innovative strategy for the specific labeling of adherent cells without the concern of freely suspended nanoparticles. This method relies on a nanocomposite film that is prepared by homogeneously dispersing nanoparticles within a biodegradable polymeric film. When adherent cells are seeded on the film, they adhere, spread, and filtrate into the film through the micropores formed during the film fabrication. The pre-embedded nanoparticles are thus internalized by the cells during this infiltration process. As an example, fluorescent silica nanoparticles were homogeneously distributed within a polycaprolactone film by utilizing cryomilling and heat pressing. Upon incubation within physiological buffer, no silica nanoparticles were released from the nanocomposite film even after 20 d of incubation. However, when adherent cells (e.g., human mesenchymal stem cells) were grown on the film, they became fluorescent after 3 d, which suggests internalization of silica nanoparticles by cells. In comparison, the suspension cells (e.g., monocytes) in the medium remained nonfluorescent no matter whether there was the presence of adherent cells or not. This strategy eventually allowed the selective and concomitant labeling of mesenchymal stem cells during their harvest from bone marrow aspiration.
Collapse
Affiliation(s)
- Yu Gao
- School of Chemical and Biomedical Engineering, Nanyang Technological University , 70 Nanyang Drive, Singapore 637457
- Key Laboratory for Organic Electronics & Information Displays (KLOEID), Institute of Advanced Materials (IAM), National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications , 9 Wenyuan Road, Nanjing 210023, China
| | - Jing Lim
- School of Chemical and Biomedical Engineering, Nanyang Technological University , 70 Nanyang Drive, Singapore 637457
| | - David Chen Loong Yeo
- School of Chemical and Biomedical Engineering, Nanyang Technological University , 70 Nanyang Drive, Singapore 637457
| | - Shanshan Liao
- School of Chemical and Biomedical Engineering, Nanyang Technological University , 70 Nanyang Drive, Singapore 637457
| | - Malin Lans
- School of Chemical and Biomedical Engineering, Nanyang Technological University , 70 Nanyang Drive, Singapore 637457
| | - Yaqi Wang
- Hybrid Silica Technologies , Cambridge, Massachusetts 02139, United States
| | - Swee-Hin Teoh
- School of Chemical and Biomedical Engineering, Nanyang Technological University , 70 Nanyang Drive, Singapore 637457
| | - Bee Tin Goh
- National Dental Centre of Singapore , Second Hospital Avenue, Singapore 168938
| | - Chenjie Xu
- School of Chemical and Biomedical Engineering, Nanyang Technological University , 70 Nanyang Drive, Singapore 637457
- NTU-Northwestern Institute for Nanomedicine, Nanyang Technological University , 50 Nanyang Avenue, Singapore 639798
| |
Collapse
|
17
|
Wang Z, Du Z, Chan JKY, Teoh SH, Thian ES, Hong M. Direct Laser Microperforation of Bioresponsive Surface-Patterned Films with Through-Hole Arrays for Vascular Tissue-Engineering Application. ACS Biomater Sci Eng 2015; 1:1239-1249. [DOI: 10.1021/acsbiomaterials.5b00455] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zuyong Wang
- Department
of Mechanical Engineering, National University of Singapore, 9 Engineering
Drive 1, Singapore 117576, Singapore
- Department
of Electrical and Computer Engineering, National University of Singapore, 2 Engineering Drive 3, Singapore 117576, Singapore
| | - Zheren Du
- Department
of Electrical and Computer Engineering, National University of Singapore, 2 Engineering Drive 3, Singapore 117576, Singapore
| | - Jerry Kok Yen Chan
- Department
of Reproductive Medicine, KK Women’s and Children’s Hospital, 100 Buikit Timah Road, Singapore 229899, Singapore
- Department
of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, 14 Medical Drive, Singapore 117599, Singapore
- Cancer
and Stem Cell Biology, Duke-NUS Graduate Medical School, 8 College
Road, Singapore 169857, Singapore
| | - Swee Hin Teoh
- School of
Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459, Singapore
| | - Eng San Thian
- Department
of Mechanical Engineering, National University of Singapore, 9 Engineering
Drive 1, Singapore 117576, Singapore
| | - Minghui Hong
- Department
of Electrical and Computer Engineering, National University of Singapore, 2 Engineering Drive 3, Singapore 117576, Singapore
| |
Collapse
|