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Ma H, Zhang T. Histone demethylase KDM3B mediates matrix stiffness-induced osteogenic differentiation of adipose-derived stem cells. Arch Biochem Biophys 2024; 757:110028. [PMID: 38768746 DOI: 10.1016/j.abb.2024.110028] [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: 09/29/2023] [Revised: 04/29/2024] [Accepted: 05/07/2024] [Indexed: 05/22/2024]
Abstract
Biomechanical signals in the extracellular niche are considered promising for programming the lineage specification of stem cells. Recent studies have reported that biomechanics, such as the microstructure of nanomaterials, can induce adipose-derived stem cells (ASCs) to differentiate into osteoblasts, mediating gene regulation at the epigenetic level. Therefore, in this study, transcriptome expression levels of histone demethylases in ASCs were screened after treatment with different matrix stiffnesses, and histone lysine demethylase 3B (KDM3B) was found to promote osteogenic differentiation of ASCs in response to matrix stiffness, indicating a positive modulatory effect on this biological process. ASCs exhibited widespread and polygonal shapes with a distinct bundle-like expression of vinculin parallel to the axial cytoskeleton along the cell margins on the stiff matrix rather than round shapes with a smeared and shorter expression on the soft matrix. Comparatively rigid polydimethylsiloxane material directed ASCs into an osteogenic phenotype in inductive culture media via the upregulation of osteocalcin, alkaline phosphatase, and runt-related transcription factor 2. Treatment with KDM3B-siRNA decreased the expression of osteogenic differentiation markers and impaired mitochondrial dynamics and mitochondrial membrane potential. These results illustrate the critical role of KDM3B in the biomechanics-induced osteogenic commitment of ASCs and provide new avenues for the further application of stem cells as potential therapeutics for bone regeneration.
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Affiliation(s)
- Huangshui Ma
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, PR China.
| | - Tao Zhang
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, PR China.
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2
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Zhang Y, Habibovic P. Delivering Mechanical Stimulation to Cells: State of the Art in Materials and Devices Design. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2110267. [PMID: 35385176 DOI: 10.1002/adma.202110267] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 03/19/2022] [Indexed: 06/14/2023]
Abstract
Biochemical signals, such as growth factors, cytokines, and transcription factors are known to play a crucial role in regulating a variety of cellular activities as well as maintaining the normal function of different tissues and organs. If the biochemical signals are assumed to be one side of the coin, the other side comprises biophysical cues. There is growing evidence showing that biophysical signals, and in particular mechanical cues, also play an important role in different stages of human life ranging from morphogenesis during embryonic development to maturation and maintenance of tissue and organ function throughout life. In order to investigate how mechanical signals influence cell and tissue function, tremendous efforts have been devoted to fabricating various materials and devices for delivering mechanical stimuli to cells and tissues. Here, an overview of the current state of the art in the design and development of such materials and devices is provided, with a focus on their design principles, and challenges and perspectives for future research directions are highlighted.
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Affiliation(s)
- Yonggang Zhang
- Department of Instructive Biomaterials Engineering, Maastricht University, MERLN Institute for Technology-Inspired Regenerative Medicine, Universiteitssingel 40, Maastricht, 6229 ER, The Netherlands
| | - Pamela Habibovic
- Department of Instructive Biomaterials Engineering, Maastricht University, MERLN Institute for Technology-Inspired Regenerative Medicine, Universiteitssingel 40, Maastricht, 6229 ER, The Netherlands
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3
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Layer-by-layer assembly as a robust method to construct extracellular matrix mimic surfaces to modulate cell behavior. Prog Polym Sci 2019. [DOI: 10.1016/j.progpolymsci.2019.02.004] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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4
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Shi X, Wu H, Yan H, Wang Y, Wang Z, Zhang P. Electroactive Nanocomposite Porous Scaffolds of PAPn/op-HA/PLGA Enhance Osteogenesis in Vivo. ACS APPLIED BIO MATERIALS 2019; 2:1464-1476. [DOI: 10.1021/acsabm.8b00716] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xincui Shi
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
| | - Haitao Wu
- Department of Orthopedics, Jilin Provincial People’s Hospital, 1183 Gongnong Street, Changchun 130021, China
| | - Huanhuan Yan
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
| | - Yu Wang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
| | - Zongliang Wang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
| | - Peibiao Zhang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
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5
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Chen XC, Huang WP, Hu M, Ren KF, Ji J. Controlling Structural Transformation of Polyelectrolyte Films for Spatially Encapsulating Functional Species. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1804867. [PMID: 30677229 DOI: 10.1002/smll.201804867] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 01/03/2019] [Indexed: 06/09/2023]
Abstract
Although many approaches have been developed to encapsulate functional species into polyelectrolyte films, few of them can effectively control the final distribution of these ones. Herein, a facile strategy is proposed to spatially control the encapsulation of guest species by locally regulating the structural transformation of polyelectrolyte films. Patterned porosity is created within a film by cross-linking it selectively and then immersing it in an acidic solution. These porous regions can exhibit significantly different properties from other regions, including the ability to wick solution, a greater retention of guest species, and the capability of structural transformation. After loading guest species, the porous structures can be eliminated at saturated humidity to encapsulate the guest species into the film, leading to their patterned distribution across the film. Based on this method, various guest species, ranging from fluorescent dyes to nanoparticles, can be locally encapsulated into polyelectrolyte film, forming distinct patterns of arbitrary shapes and sizes and thus paving the way for further applications.
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Affiliation(s)
- Xia-Chao Chen
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, 310027, Hangzhou, P. R. China
| | - Wei-Pin Huang
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, 310027, Hangzhou, P. R. China
| | - Mi Hu
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, 310027, Hangzhou, P. R. China
| | - Ke-Feng Ren
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, 310027, Hangzhou, P. R. China
| | - Jian Ji
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, 310027, Hangzhou, P. R. China
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6
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Chen XC, Huang WP, Ren KF, Ji J. Self-Healing Label Materials Based on Photo-Cross-Linkable Polymeric Films with Dynamic Surface Structures. ACS NANO 2018; 12:8686-8696. [PMID: 30106556 DOI: 10.1021/acsnano.8b04656] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Spatially controlling the evolution of surface structures may provide an effective strategy for patterning surface roughness and facilitating the construction of various functional surfaces. In this study, we report a photo-cross-linkable polymeric film with dynamic surface micro/nanostructures. The surface structures of the un-cross-linked regions can be eliminated under saturated humidity, which can be utilized to create patterned roughness on the film. One potential application of this patternable platform is as a "smart" label material for graphical symbols. Various graphical symbols can be programmed onto this film by partially erasing its surface roughness, enabling visibility due to the difference in light scattering between different areas of the film. When a thus-prepared label was blurred by mechanical scratches, it could be healed under saturated humidity, and its original readability could be fully restored. Furthermore, the patterned rough surface created using our approach can also be very useful in many other research fields, such as surface wettability and cell behavior manipulation.
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Affiliation(s)
- Xia-Chao Chen
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering , Zhejiang University , Hangzhou 310027 , P.R. China
| | - Wei-Pin Huang
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering , Zhejiang University , Hangzhou 310027 , P.R. China
| | - Ke-Feng Ren
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering , Zhejiang University , Hangzhou 310027 , P.R. China
| | - Jian Ji
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering , Zhejiang University , Hangzhou 310027 , P.R. China
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7
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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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8
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Ostrovidov S, Ebrahimi M, Bae H, Nguyen HK, Salehi S, Kim SB, Kumatani A, Matsue T, Shi X, Nakajima K, Hidema S, Osanai M, Khademhosseini A. Gelatin-Polyaniline Composite Nanofibers Enhanced Excitation-Contraction Coupling System Maturation in Myotubes. ACS APPLIED MATERIALS & INTERFACES 2017; 9:42444-42458. [PMID: 29023089 DOI: 10.1021/acsami.7b03979] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
In this study, composite gelatin-polyaniline (PANI) nanofibers doped with camphorsulfonic acid (CSA) were fabricated by electrospinning and used as substrates to culture C2C12 myoblast cells. We observed enhanced myotube formation on composite gelatin-PANI nanofibers compared to gelatin nanofibers, concomitantly with enhanced myotube maturation. Thus, in myotubes, intracellular organization, colocalization of the dihydropyridine receptor (DHPR) and ryanodine receptor (RyR), expression of genes correlated to the excitation-contraction (E-C) coupling apparatus, calcium transients, and myotube contractibility were increased. Such composite material scaffolds combining topographical and electrically conductive cues may be useful to direct skeletal muscle cell organization and to improve cellular maturation, functionality, and tissue formation.
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Affiliation(s)
- Serge Ostrovidov
- WPI-Advanced Institute for Materials Research, Tohoku University , Sendai 980-8577, Japan
- Department of Medicine, Center for Biomedical Engineering, Brigham and Women's Hospital, Harvard Medical School , Cambridge, Massachusetts 02139, United States
| | - Majid Ebrahimi
- WPI-Advanced Institute for Materials Research, Tohoku University , Sendai 980-8577, Japan
| | - Hojae Bae
- KU Convergence Science and Technology Institute, Department of Stem Cell and Regenerative Biotechnology, Konkuk University , Hwayang-dong, Kwangjin-gu, Seoul 05029, Republic of Korea
| | - Hung Kim Nguyen
- WPI-Advanced Institute for Materials Research, Tohoku University , Sendai 980-8577, Japan
| | - Sahar Salehi
- WPI-Advanced Institute for Materials Research, Tohoku University , Sendai 980-8577, Japan
- Lehrstuhl Biomaterialien, Fakultät für Ingenieurwissenschaften, Universität Bayreuth , Bayreuth 95440, Germany
| | - Sang Bok Kim
- Department of Eco-Machinery system, Korea Institute of Machinery and Materials , Daejeon 305-343, Republic of Korea
| | - Akichika Kumatani
- WPI-Advanced Institute for Materials Research, Tohoku University , Sendai 980-8577, Japan
- Graduate School of Environmental Studies, Tohoku University , Sendai 980-8579, Japan
| | - Tomokazu Matsue
- WPI-Advanced Institute for Materials Research, Tohoku University , Sendai 980-8577, Japan
- Graduate School of Environmental Studies, Tohoku University , Sendai 980-8579, Japan
| | - Xuetao Shi
- National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology , Guangzhou 510006, PR China
| | - Ken Nakajima
- School of Materials and Chemical Technology, Tokyo Institute of Technology , Tokyo 152-8550, Japan
| | - Shizu Hidema
- Graduate School of Agricultural Science, Department of Molecular and Cell Biology, Tohoku University , Sendai 981-8555, Japan
| | - Makoto Osanai
- Department of Radiological Imaging and Informatics, Tohoku University Graduate School of Medicine , Sendai 980-8575, Japan
- Department of Intelligent Biomedical Systems Engineering, Graduate School of Biomedical Engineering, Tohoku University , Sendai 980-8575, Japan
| | - Ali Khademhosseini
- WPI-Advanced Institute for Materials Research, Tohoku University , Sendai 980-8577, Japan
- Department of Medicine, Center for Biomedical Engineering, Brigham and Women's Hospital, Harvard Medical School , Cambridge, Massachusetts 02139, United States
- KU Convergence Science and Technology Institute, Department of Stem Cell and Regenerative Biotechnology, Konkuk University , Hwayang-dong, Kwangjin-gu, Seoul 05029, Republic of Korea
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology , Cambridge, Massachusetts 02139, United States
- Wyss Institute for Biologically Inspired Engineering, Harvard University , Boston, Massachusetts 02115, United States
- Department of Physics, Faculty of Science, King Abdulaziz University , Jeddah 21569, Saudi Arabia
- California NanoSystems Institute (CNSI), and Center for Minimally Invasive Therapeutics (C-MIT), Department of Bioengineering and Department of Radiology, University of California , Los Angeles, California 90095, United States
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9
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Hosseinzadeh S, Rezayat SM, Giaseddin A, Aliyan A, Soleimani M. Microfluidic system for synthesis of nanofibrous conductive hydrogel and muscle differentiation. J Biomater Appl 2017; 32:853-861. [PMID: 29187019 DOI: 10.1177/0885328217744377] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Microscale hydrogels can be synthesized within microfluidic systems and subsequently assembled to make tissues composed of units such as myofibers in muscle tissue. Importantly, the nanofibrous surface of hydrogels is essential for tissue engineering aims due to inducing beneficial cell-surface interactions. In this study, a new microfluidic platform, embedded with a hydrogel, was introduced that allowed for performing multiple non-parallel steps for the synthetic approaches. Satellite cells, isolated from skeletal tissues of 10-day Naval Medical Research Institute-murine were cultured on the prepared hydrogel within the microfluidic system. The normal proliferation of satellite cells occurred after the employment of continuous perfusion cell culture. Interestingly, the positive results of the immuno-staining assay along with the cellular bridge formation between hydrogel fragments confirmed the muscle differentiation of seeded satellite cells. Further on, COMSOl simulations anticipated that the thermodynamic conditions of the microfluidic system during hydrogel synthesis had to be kept steady while a shear stress value of 15 × 10-6 Pa was calculated, exhibiting a cell culture condition free of environmental stress.
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Affiliation(s)
- Simzar Hosseinzadeh
- 1 Department of tissue engineering and regenerative medicine, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,2 Stem Cell Technology Research Center, Tehran, Iran
| | - Sayed Mahdi Rezayat
- 3 Department of Toxicology and Pharmacology, School of Pharmacy, Pharmaceutical Sciences Branch, Islamic Azad University (IAUPS), Tehran, Iran
| | - Ali Giaseddin
- 4 Biomedical Engineering Group, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran
| | - Amir Aliyan
- 5 Hematology Department, Faculty of Medical Science, Tarbiat Modares University, Tehran, Iran
| | - Masoud Soleimani
- 5 Hematology Department, Faculty of Medical Science, Tarbiat Modares University, Tehran, Iran
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10
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Zhang T, Lin S, Shao X, Shi S, Zhang Q, Xue C, Lin Y, Zhu B, Cai X. Regulating osteogenesis and adipogenesis in adipose-derived stem cells by controlling underlying substrate stiffness. J Cell Physiol 2017; 233:3418-3428. [PMID: 28926111 DOI: 10.1002/jcp.26193] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Accepted: 09/14/2017] [Indexed: 02/05/2023]
Affiliation(s)
- Tao Zhang
- State Key Laboratory of Oral Diseases; West China Hospital of Stomatology; Sichuan University; Chengdu P. R. China
| | - Shiyu Lin
- State Key Laboratory of Oral Diseases; West China Hospital of Stomatology; Sichuan University; Chengdu P. R. China
| | - Xiaoru Shao
- State Key Laboratory of Oral Diseases; West China Hospital of Stomatology; Sichuan University; Chengdu P. R. China
| | - Sirong Shi
- State Key Laboratory of Oral Diseases; West China Hospital of Stomatology; Sichuan University; Chengdu P. R. China
| | - Qi Zhang
- State Key Laboratory of Oral Diseases; West China Hospital of Stomatology; Sichuan University; Chengdu P. R. China
| | - Changyue Xue
- State Key Laboratory of Oral Diseases; West China Hospital of Stomatology; Sichuan University; Chengdu P. R. China
| | - Yunfeng Lin
- State Key Laboratory of Oral Diseases; West China Hospital of Stomatology; Sichuan University; Chengdu P. R. China
| | - Bofeng Zhu
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research; College of Stomatology; Xi'an Jiaotong University; Xian Shanxi P. R. China
- Clinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases; College of Stomatology, Xi'an Jiaotong University; Xian Shanxi P. R. China
| | - Xiaoxiao Cai
- State Key Laboratory of Oral Diseases; West China Hospital of Stomatology; Sichuan University; Chengdu P. R. China
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11
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Biggs MJP, Fernandez M, Thomas D, Cooper R, Palma M, Liao J, Fazio T, Dahlberg C, Wheadon H, Pallipurath A, Pandit A, Kysar J, Wind SJ. The Functional Response of Mesenchymal Stem Cells to Electron-Beam Patterned Elastomeric Surfaces Presenting Micrometer to Nanoscale Heterogeneous Rigidity. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:10.1002/adma.201702119. [PMID: 28861921 PMCID: PMC7391933 DOI: 10.1002/adma.201702119] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2017] [Revised: 07/03/2017] [Indexed: 05/13/2023]
Abstract
Cells directly probe and respond to the physicomechanical properties of their extracellular environment, a dynamic process which has been shown to play a key role in regulating both cellular adhesive processes and differential cellular function. Recent studies indicate that stem cells show lineage-specific differentiation when cultured on substrates approximating the stiffness profiles of specific tissues. Although tissues are associated with a range of Young's modulus values for bulk rigidity, at the subcellular level, tissues are comprised of heterogeneous distributions of rigidity. Lithographic processes have been widely explored in cell biology for the generation of analytical substrates to probe cellular physicomechanical responses. In this work, it is shown for the first time that that direct-write e-beam exposure can significantly alter the rigidity of elastomeric poly(dimethylsiloxane) substrates and a new class of 2D elastomeric substrates with controlled patterned rigidity ranging from the micrometer to the nanoscale is described. The mechanoresponse of human mesenchymal stem cells to e-beam patterned substrates was subsequently probed in vitro and significant modulation of focal adhesion formation and osteochondral lineage commitment was observed as a function of both feature diameter and rigidity, establishing the groundwork for a new generation of biomimetic material interfaces.
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Affiliation(s)
- Manus J. P. Biggs
- Centre for Research in Medical Devices (CÚRAM), Biosciences Research Building, Newcastle Road, Dangan, National University of Ireland, Galway, Ireland
- Department of Biomedical Engineering, College of Engineering and Informatics, National University of Ireland Galway, Galway, Ireland
| | - Marc Fernandez
- Centre for Research in Medical Devices (CÚRAM), Biosciences Research Building, Newcastle Road, Dangan, National University of Ireland, Galway, Ireland
- Department of Biomedical Engineering, College of Engineering and Informatics, National University of Ireland Galway, Galway, Ireland
| | - Dilip Thomas
- Centre for Research in Medical Devices (CÚRAM), Biosciences Research Building, Newcastle Road, Dangan, National University of Ireland, Galway, Ireland
| | - Ryan Cooper
- Department of Mechanical Engineering, Columbia University, 500 West 120 St., New York, NY, USA 10027
| | - Matteo Palma
- The School of Biological and Chemical Sciences, Queen Mary University of London, London, UK
| | - Jinyu Liao
- Department of Electrical Engineering, Columbia University, 500 West 120th St. New York, NY, USA 10027
- Department of Applied Physics and Applied Mathematics, Columbia University, 500 West 120 St., New York, NY, USA 10027
| | - Teresa Fazio
- Department of Applied Physics and Applied Mathematics, Columbia University, 500 West 120 St., New York, NY, USA 10027
| | - Carl Dahlberg
- Department of Mechanical Engineering, Columbia University, 500 West 120 St., New York, NY, USA 10027
| | - Helen Wheadon
- Leukaemia Research Centre, Gartnavel General Hospital, Glasgow G11 0YN, UK
| | | | - Abhay Pandit
- Centre for Research in Medical Devices (CÚRAM), Biosciences Research Building, Newcastle Road, Dangan, National University of Ireland, Galway, Ireland
- Department of Biomedical Engineering, College of Engineering and Informatics, National University of Ireland Galway, Galway, Ireland
| | - Jeffrey Kysar
- Department of Mechanical Engineering, Columbia University, 500 West 120 St., New York, NY, USA 10027
| | - Shalom J. Wind
- Department of Applied Physics and Applied Mathematics, Columbia University, 500 West 120 St., New York, NY, USA 10027
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Andersen JI, Pennisi CP, Fink T, Zachar V. Focal Adhesion Kinase Activation Is Necessary for Stretch-Induced Alignment and Enhanced Differentiation of Myogenic Precursor Cells. Tissue Eng Part A 2017; 24:631-640. [PMID: 28741418 DOI: 10.1089/ten.tea.2017.0137] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Myogenic precursors sense and dynamically respond to mechanical stimulation through complex integrin-mediated mechanotransduction, in which focal adhesion kinase (FAK) is a fundamental intracellular signaling mediator. When skeletal myoblasts are exposed to uniaxial cyclic tensile strain (UCTS), they display uniform alignment and an enhanced rate of differentiation. In this work, we explored the role of FAK activation by using C2C12 myoblasts that were grown on flexible culture plates and exposed to UCTS during the early differentiation phase. After 24 h, the cells oriented perpendicularly to the direction of strain and exhibited an enhanced differentiation profile. Next, the cells were exposed to a strain field that was either kept in the same direction or rotated 90°, in the presence or not of an FAK phosphorylation inhibitor. On reorientation of the strain field by 90°, the cells reassembled their focal adhesions and actin cytoskeleton to regain the perpendicular position with respect to the engaging stress. After blocking the FAK, however, the cells failed to respond to the reoriented strain field and their differentiation was abrogated. Interestingly, when the strain field remained in the same direction, the FAK inhibitor compromised the differentiation, even though there was no evident change in cell orientation. Our data indicate that during exposure to UCTS, the activation of FAK is necessary for the myoblasts to undergo alignment and enhanced differentiation.
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Affiliation(s)
- Jens Isak Andersen
- Laboratory for Stem Cell Research, Department of Health Science and Technology, Aalborg University , Aalborg, Denmark
| | - Cristian Pablo Pennisi
- Laboratory for Stem Cell Research, Department of Health Science and Technology, Aalborg University , Aalborg, Denmark
| | - Trine Fink
- Laboratory for Stem Cell Research, Department of Health Science and Technology, Aalborg University , Aalborg, Denmark
| | - Vladimir Zachar
- Laboratory for Stem Cell Research, Department of Health Science and Technology, Aalborg University , Aalborg, Denmark
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13
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Yu P, Ning C, Zhang Y, Tan G, Lin Z, Liu S, Wang X, Yang H, Li K, Yi X, Zhu Y, Mao C. Bone-Inspired Spatially Specific Piezoelectricity Induces Bone Regeneration. Theranostics 2017; 7:3387-3397. [PMID: 28900517 PMCID: PMC5595139 DOI: 10.7150/thno.19748] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Accepted: 05/18/2017] [Indexed: 01/12/2023] Open
Abstract
The extracellular matrix of bone can be pictured as a material made of parallel interspersed domains of fibrous piezoelectric collagenous materials and non-piezoelectric non-collagenous materials. To mimic this feature for enhanced bone regeneration, a material made of two parallel interspersed domains, with higher and lower piezoelectricity, respectively, is constructed to form microscale piezoelectric zones (MPZs). The MPZs are produced using a versatile and effective laser-irradiation technique in which K0.5Na0.5NbO3 (KNN) ceramics are selectively irradiated to achieve microzone phase transitions. The phase structure of the laser-irradiated microzones is changed from a mixture of orthorhombic and tetragonal phases (with higher piezoelectricity) to a tetragonal dominant phase (with lower piezoelectricity). The microzoned piezoelectricity distribution results in spatially specific surface charge distribution, enabling the MPZs to bear bone-like microscale electric cues. Hence, the MPZs induce osteogenic differentiation of stem cells in vitro and bone regeneration in vivo even without being seeded with stem cells. The concept of mimicking the spatially specific piezoelectricity in bone will facilitate future research on the rational design of tissue regenerative materials.
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14
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Sousa MP, Caridade SG, Mano JF. Control of Cell Alignment and Morphology by Redesigning ECM-Mimetic Nanotopography on Multilayer Membranes. Adv Healthc Mater 2017; 6:10.1002/adhm.201601462. [PMID: 28371516 PMCID: PMC6398568 DOI: 10.1002/adhm.201601462] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Revised: 02/11/2017] [Indexed: 01/08/2023]
Abstract
Inspired by native extracellular matrix (ECM) together with the multilevel architecture observed in nature, a material which topography recapitulates topographic features of the ECM and the internal architecture mimics the biological materials organization is engineered. The nanopatterned design along the XY plane is combined with a nanostructured organization along the Z axis on freestanding membranes prepared by layer-by-layer deposition of chitosan and chondroitin sulfate. Cellular behavior is monitored using two different mammalian cell lines, fibroblasts (L929) and myoblasts (C2C12), in order to perceive the response to topography. Viability, proliferation, and morphology of L929 are sensitively controlled by topography; also differentiation of C2C12 into myotubes is influenced by the presence of nanogrooves. This kind of nanopatterned structure has also been associated with strong cellular alignment. To the best of the knowledge, it is the first time that such a straightforward and inexpensive strategy is proposed to produce nanopatterned freestanding multilayer membranes. Controlling cellular alignment plays a critical role in many human tissues, such as muscles, nerves, or blood vessels, so these membranes can be potentially useful in specific tissue regeneration strategies.
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15
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Sunami H, Shimizu Y, Denda J, Yokota I, Yoshizawa T, Uechi Y, Nakasone H, Igarashi Y, Kishimoto H, Matsushita M. Modulation of surface stiffness and cell patterning on polymer films using micropatterns. J Biomed Mater Res B Appl Biomater 2017; 106:976-985. [PMID: 28474403 DOI: 10.1002/jbm.b.33905] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2016] [Revised: 03/23/2017] [Accepted: 04/13/2017] [Indexed: 12/30/2022]
Abstract
Here, a new technology was developed to selectively produce areas of high and low surface Young's modulus on biomedical polymer films using micropatterns. First, an elastic polymer film was adhered to a striped micropattern to fabricate a micropattern-supported film. Next, the topography and Young's modulus of the film surface were mapped using atomic force microscopy. Contrasts between the concave and convex locations of the stripe pattern were obvious in the Young's modulus map, although the topographical map of the film surface appeared almost flat. The concave and convex locations of a polymer film supported by a different micropattern also contrasted clearly. The resulting Young's modulus map showed that the Young's modulus was higher at convex locations than at concave locations. Hence, regions of high and low stiffness can be locally generated based on the shape of the micropattern supporting the film. When cells were cultured on the micropattern-supported films, NIH3T3 fibroblasts preferentially accumulated in convex regions with high Young's moduli. These findings demonstrate that this new technology can regulate regions of high and low surface Young's modulus on a cellular scaffold with high planar resolution, as well as providing a method for directing cellular patterning. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 976-985, 2018.
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Affiliation(s)
- Hiroshi Sunami
- School of Medicine, University of Ryukyus, Nishihara, Japan
| | - Yusuke Shimizu
- School of Medicine, University of Ryukyus, Nishihara, Japan
| | - Junko Denda
- School of Medicine, University of Ryukyus, Nishihara, Japan
| | - Ikuko Yokota
- Frontier Research Center for Post-genome Science and Technology, Hokkaido University Faculty of Advanced Science, Sapporo, Japan
| | - Tomokazu Yoshizawa
- Creative Research Institution (CRIS), Hokkaido University, Sapporo, Japan
| | - Yukiko Uechi
- School of Medicine, University of Ryukyus, Nishihara, Japan
| | | | - Yasuyuki Igarashi
- Frontier Research Center for Post-genome Science and Technology, Hokkaido University Faculty of Advanced Science, Sapporo, Japan
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16
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Tallawi M, Dippold D, Rai R, D'Atri D, Roether J, Schubert D, Rosellini E, Engel F, Boccaccini A. Novel PGS/PCL electrospun fiber mats with patterned topographical features for cardiac patch applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 69:569-76. [DOI: 10.1016/j.msec.2016.06.083] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Revised: 05/24/2016] [Accepted: 06/25/2016] [Indexed: 10/21/2022]
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17
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Visone R, Gilardi M, Marsano A, Rasponi M, Bersini S, Moretti M. Cardiac Meets Skeletal: What's New in Microfluidic Models for Muscle Tissue Engineering. Molecules 2016; 21:E1128. [PMID: 27571058 PMCID: PMC6274098 DOI: 10.3390/molecules21091128] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Revised: 08/16/2016] [Accepted: 08/19/2016] [Indexed: 12/16/2022] Open
Abstract
In the last few years microfluidics and microfabrication technique principles have been extensively exploited for biomedical applications. In this framework, organs-on-a-chip represent promising tools to reproduce key features of functional tissue units within microscale culture chambers. These systems offer the possibility to investigate the effects of biochemical, mechanical, and electrical stimulations, which are usually applied to enhance the functionality of the engineered tissues. Since the functionality of muscle tissues relies on the 3D organization and on the perfect coupling between electrochemical stimulation and mechanical contraction, great efforts have been devoted to generate biomimetic skeletal and cardiac systems to allow high-throughput pathophysiological studies and drug screening. This review critically analyzes microfluidic platforms that were designed for skeletal and cardiac muscle tissue engineering. Our aim is to highlight which specific features of the engineered systems promoted a typical reorganization of the engineered construct and to discuss how promising design solutions exploited for skeletal muscle models could be applied to improve cardiac tissue models and vice versa.
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Affiliation(s)
- Roberta Visone
- Department of Electronics, Information and Bioengineering, Politecnico Di Milano, Milano 20133, Italy.
| | - Mara Gilardi
- Cell and Tissue Engineering Lab, IRCCS Istituto Ortopedico Galeazzi, Milano 20161, Italy.
- Department of Biotechnology and Biosciences, PhD School in Life Sciences, University of Milano-Bicocca, Milano 20126, Italy.
| | - Anna Marsano
- Departments of Surgery and Biomedicine, University Basel, University Hospital Basel, Basel 4065, Switzerland.
| | - Marco Rasponi
- Department of Electronics, Information and Bioengineering, Politecnico Di Milano, Milano 20133, Italy.
| | - Simone Bersini
- Cell and Tissue Engineering Lab, IRCCS Istituto Ortopedico Galeazzi, Milano 20161, Italy.
| | - Matteo Moretti
- Cell and Tissue Engineering Lab, IRCCS Istituto Ortopedico Galeazzi, Milano 20161, Italy.
- Regenerative Medicine Technologies Lab, Ente Ospedaliero Cantonale, Lugano 6900, Switzerland.
- Swiss Institute for Regenerative Medicine, Lugano 6900, Switzerland.
- Cardiocentro Ticino, Lugano 6900, Switzerland.
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Silva JM, Reis RL, Mano JF. Biomimetic Extracellular Environment Based on Natural Origin Polyelectrolyte Multilayers. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:4308-42. [PMID: 27435905 DOI: 10.1002/smll.201601355] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 06/15/2016] [Indexed: 05/23/2023]
Abstract
Surface modification of biomaterials is a well-known approach to enable an adequate biointerface between the implant and the surrounding tissue, dictating the initial acceptance or rejection of the implantable device. Since its discovery in early 1990s layer-by-layer (LbL) approaches have become a popular and attractive technique to functionalize the biomaterials surface and also engineering various types of objects such as capsules, hollow tubes, and freestanding membranes in a controllable and versatile manner. Such versatility enables the incorporation of different nanostructured building blocks, including natural biopolymers, which appear as promising biomimetic multilayered systems due to their similarity to human tissues. In this review, the potential of natural origin polymer-based multilayers is highlighted in hopes of a better understanding of the mechanisms behind its use as building blocks of LbL assembly. A deep overview on the recent progresses achieved in the design, fabrication, and applications of natural origin multilayered films is provided. Such films may lead to novel biomimetic approaches for various biomedical applications, such as tissue engineering, regenerative medicine, implantable devices, cell-based biosensors, diagnostic systems, and basic cell biology.
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Affiliation(s)
- Joana M Silva
- 3Bs Research Group-Biomaterials Biodegradables and Biomimetics, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark - Zona Industrial da Gandra, 4805-017, Barco, Guimarães, Portugal
- ICVS/3B's - PT Government Associate Laboratory Braga/Guimarães, Portugal
| | - Rui L Reis
- 3Bs Research Group-Biomaterials Biodegradables and Biomimetics, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark - Zona Industrial da Gandra, 4805-017, Barco, Guimarães, Portugal
- ICVS/3B's - PT Government Associate Laboratory Braga/Guimarães, Portugal
| | - João F Mano
- 3Bs Research Group-Biomaterials Biodegradables and Biomimetics, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark - Zona Industrial da Gandra, 4805-017, Barco, Guimarães, Portugal
- ICVS/3B's - PT Government Associate Laboratory Braga/Guimarães, Portugal
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19
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Whang M, Kim J. Synthetic hydrogels with stiffness gradients for durotaxis study and tissue engineering scaffolds. Tissue Eng Regen Med 2016; 13:126-139. [PMID: 30603392 PMCID: PMC6170857 DOI: 10.1007/s13770-016-0026-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Revised: 03/02/2016] [Accepted: 03/03/2016] [Indexed: 12/21/2022] Open
Abstract
Migration of cells along the right direction is of paramount importance in a number of in vivo circumstances such as immune response, embryonic developments, morphogenesis, and healing of wounds and scars. While it has been known for a while that spatial gradients in chemical cues guide the direction of cell migration, the significance of the gradient in mechanical cues, such as stiffness of extracellular matrices (ECMs), in directed migration of cells has only recently emerged. With advances in synthetic chemistry, micro-fabrication techniques, and methods to characterize mechanical properties at a length scale even smaller than a single cell, synthetic ECMs with spatially controlled stiffness have been created with variations in design parameters. Since then, the synthetic ECMs have served as platforms to study the migratory behaviors of cells in the presence of the stiffness gradient of ECM and also as scaffolds for the regeneration of tissues. In this review, we highlight recent studies in cell migration directed by the stiffness gradient, called durotaxis, and discuss the mechanisms of durotaxis. We also summarize general methods and design principles to create synthetic ECMs with the stiffness gradients and, finally, conclude by discussing current limitations and future directions of synthetic ECMs for the study of durotaxis and the scaffold for tissue engineering.
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Affiliation(s)
- Minji Whang
- Department of Chemical and Biomolecular Engineering, Sogang University, Seoul, Korea
| | - Jungwook Kim
- Department of Chemical and Biomolecular Engineering, Sogang University, Seoul, Korea
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20
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Chen XC, Ren KF, Chen JY, Wang J, Zhang H, Ji J. Self-wrinkling polyelectrolyte multilayers: construction, smoothing and the underlying mechanism. Phys Chem Chem Phys 2016; 18:31168-31174. [DOI: 10.1039/c6cp05419f] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The spontaneous formation of these surface features can be attributed to swelling-induced film deformation during the assembling process.
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Affiliation(s)
- Xia-chao Chen
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou
- China
| | - Ke-feng Ren
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou
- China
| | - Jia-yan Chen
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou
- China
| | - Jing Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou
- China
| | - He Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou
- China
| | - Jian Ji
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou
- China
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21
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Nomura K, Mikuni S, Nakaji-Hirabayashi T, Gemmei-Ide M, Kitano H, Noguchi H, Uosaki K. Water structure at the interfaces between a zwitterionic self-assembled monolayer/liquid water evaluated by sum-frequency generation spectroscopy. Colloids Surf B Biointerfaces 2015; 135:267-273. [DOI: 10.1016/j.colsurfb.2015.07.072] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Revised: 07/24/2015] [Accepted: 07/27/2015] [Indexed: 01/20/2023]
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22
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Monge C, Almodóvar J, Boudou T, Picart C. Spatio-Temporal Control of LbL Films for Biomedical Applications: From 2D to 3D. Adv Healthc Mater 2015; 4:811-30. [PMID: 25627563 PMCID: PMC4540079 DOI: 10.1002/adhm.201400715] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Revised: 12/19/2014] [Indexed: 12/15/2022]
Abstract
Introduced in the '90s by Prof. Moehwald, Lvov, and Decher, the layer-by-layer (LbL) assembly of polyelectrolytes has become a popular technique to engineer various types of objects such as films, capsules and free standing membranes, with an unprecedented control at the nanometer and micrometer scales. The LbL technique allows to engineer biofunctional surface coatings, which may be dedicated to biomedical applications in vivo but also to fundamental studies and diagnosis in vitro. Initially mostly developed as 2D coatings and hollow capsules, the range of complex objects created by the LbL technique has greatly expanded in the past 10 years. In this Review, the aim is to highlight the recent progress in the field of LbL films for biomedical applications and to discuss the various ways to spatially and temporally control the biochemical and mechanical properties of multilayers. In particular, three major developments of LbL films are discussed: 1) the new methods and templates to engineer LbL films and control cellular processes from adhesion to differentiation, 2) the major ways to achieve temporal control by chemical, biological and physical triggers and, 3) the combinations of LbL technique, cells and scaffolds for repairing 3D tissues, including cardio-vascular devices, bone implants and neuro-prosthetic devices.
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Affiliation(s)
- Claire Monge
- CNRS, UMR 5628, LMGP, 3 parvis Louis Néel, F-38016, Grenoble, France; Université de Grenoble Alpes, Grenoble Institute of Technology, 3 parvis Louis Néel, F-38016, Grenoble, France
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23
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Partially photodegradable hybrid hydrogels with elasticity tunable by light irradiation. Colloids Surf B Biointerfaces 2014; 126:575-9. [PMID: 25511440 DOI: 10.1016/j.colsurfb.2014.11.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Revised: 10/22/2014] [Accepted: 11/13/2014] [Indexed: 01/27/2023]
Abstract
This paper reports a simple technique to synthesize elasticity tunable hybrid hydrogels using photocleavable (N-hydroxysuccinimide terminated photocleavable tetra-arm poly(ethylene glycol); NHS-PC-4armPEG) and non-photocleavable (N-hydroxysuccinimide terminated tetra-arm poly(ethylene glycol); NHS-4armPEG) activated-ester type crosslinkers. Partially photodegradable hybrid hydrogels were synthesized by reacting the crosslinker mixture with amino-terminated tetra-arm poly(ethylene glycol) (amino-4armPEG). The photocleavable crosslinks are cleaved by irradiating light while the non-photocleavable crosslinks remain intact, resulting in decreased elasticity. We demonstrate that hydrogel elasticity can be controlled by adjusting the ratio of photocleavable NHS-PC-4armPEG and non-photocleavable NHS-4armPEG, and by varying the light exposure energy. We also show how micropatterned elasticity can be obtained in the hydrogels by irradiating with micropatterned light. These techniques could provide a novel platform to tailor the elasticity of hydrogels with microscale precision for biological studies in the near future.
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24
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Sum-frequency generation analyses of the structure of water at amphoteric SAM–liquid water interfaces. Colloids Surf B Biointerfaces 2014; 121:264-9. [DOI: 10.1016/j.colsurfb.2014.04.025] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Revised: 04/26/2014] [Accepted: 04/28/2014] [Indexed: 01/31/2023]
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25
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Cui H, Wang Y, Cui L, Zhang P, Wang X, Wei Y, Chen X. In Vitro Studies on Regulation of Osteogenic Activities by Electrical Stimulus on Biodegradable Electroactive Polyelectrolyte Multilayers. Biomacromolecules 2014; 15:3146-57. [DOI: 10.1021/bm5007695] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Haitao Cui
- Key
Laboratory of Polymer Ecomaterials, Changchun Institute of Applied
Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100039, People’s Republic of China
| | - Yu Wang
- Key
Laboratory of Polymer Ecomaterials, Changchun Institute of Applied
Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
| | - Liguo Cui
- Key
Laboratory of Polymer Ecomaterials, Changchun Institute of Applied
Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
| | - Peibiao Zhang
- Key
Laboratory of Polymer Ecomaterials, Changchun Institute of Applied
Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
| | - Xianhong Wang
- Key
Laboratory of Polymer Ecomaterials, Changchun Institute of Applied
Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
| | - Yen Wei
- Department
of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Xuesi Chen
- Key
Laboratory of Polymer Ecomaterials, Changchun Institute of Applied
Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
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26
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Palankar R, Medvedev N, Rong A, Delcea M. Fabrication of quantum dot microarrays using electron beam lithography for applications in analyte sensing and cellular dynamics. ACS NANO 2013; 7:4617-28. [PMID: 23597071 DOI: 10.1021/nn401424y] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Quantum dot (QD) based micro-/nanopatterned arrays are of broad interest in applications ranging from electronics, photonics, to sensor devices for biomedical purposes. Here, we report on a rapid, physico-chemically mild approach to generate high fidelity micropattern arrays of prefunctionalized water-soluble quantum dots using electron beam lithography. We show that such patterns retain their fluorescence and bioaffinity upon electron beam lithography and, based on the streptavidin-biotin interaction, allow for detection of proteins, colloidal gold nanoparticles and magnetic microparticles. Furthermore, we demonstrate the applicability of QD based microarray patterns differing in their shape (circles, squares, grid-like), size (from 1 to 10 μm) and pitch distance to study the adhesion, spreading and migration of human blood derived neutrophils. Using live cell confocal fluorescence microscopy, we show that pattern geometry and pitch distance influence the adhesion, spreading and migratory behavior of neutrophils. Research reported in this work paves the way for producing QD microarrays with multiplexed functionalities relevant for applications in analyte sensing and cellular dynamics.
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Affiliation(s)
- Raghavendra Palankar
- Nanostructure Group, ZIK HIKE - Center for Innovation Competence , Humoral Immune Reactions in Cardiovascular Diseases, Ernst-Moritz-Arndt-Universität Greifswald, 17489 Greifswald, Germany.
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