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Chen Y, Luo Z, Meng W, Liu K, Chen Q, Cai Y, Ding Z, Huang C, Zhou Z, Jiang M, Zhou L. Decoding the "Fingerprint" of Implant Materials: Insights into the Foreign Body Reaction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2310325. [PMID: 38191783 DOI: 10.1002/smll.202310325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 12/12/2023] [Indexed: 01/10/2024]
Abstract
Foreign body reaction (FBR) is a prevalent yet often overlooked pathological phenomenon, particularly within the field of biomedical implantation. The presence of FBR poses a heavy burden on both the medical and socioeconomic systems. This review seeks to elucidate the protein "fingerprint" of implant materials, which is generated by the physiochemical properties of the implant materials themselves. In this review, the activity of macrophages, the formation of foreign body giant cells (FBGCs), and the development of fibrosis capsules in the context of FBR are introduced. Additionally, the relationship between various implant materials and FBR is elucidated in detail, as is an overview of the existing approaches and technologies employed to alleviate FBR. Finally, the significance of implant components (metallic materials and non-metallic materials), surface CHEMISTRY (charge and wettability), and physical characteristics (topography, roughness, and stiffness) in establishing the protein "fingerprint" of implant materials is also well documented. In conclusion, this review aims to emphasize the importance of FBR on implant materials and provides the current perspectives and approaches in developing implant materials with anti-FBR properties.
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Affiliation(s)
- Yangmengfan Chen
- Orthopedic Research Institution, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, 610041, China
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Zeyu Luo
- Orthopedic Research Institution, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, 610041, China
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Weikun Meng
- Orthopedic Research Institution, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, 610041, China
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Kai Liu
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Qiqing Chen
- Department of Ultrasound, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, 570311, China
| | - Yongrui Cai
- Orthopedic Research Institution, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, 610041, China
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Zichuan Ding
- Orthopedic Research Institution, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, 610041, China
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Chao Huang
- Orthopedic Research Institution, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, 610041, China
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Zongke Zhou
- Orthopedic Research Institution, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, 610041, China
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Meng Jiang
- Emergency and Trauma Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Liqiang Zhou
- MOE Frontiers Science Center for Precision Oncology, Faculty of Health Sciences, University of Macau, Macau SAR, 999078, China
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2
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Goldmann WH. Durotaxis: A cause of organ fibrosis and metastatic cancer? Cell Biol Int 2024; 48:553-555. [PMID: 38501430 DOI: 10.1002/cbin.12156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 02/08/2024] [Accepted: 03/02/2024] [Indexed: 03/20/2024]
Affiliation(s)
- Wolfgang H Goldmann
- Department of Biophysics, Friedrich-Alexander-University, Erlangen-Nuremberg, Erlangen, Germany
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3
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Soliman BG, Longoni A, Major GS, Lindberg GCJ, Choi YS, Zhang YS, Woodfield TBF, Lim KS. Harnessing Macromolecular Chemistry to Design Hydrogel Micro- and Macro-Environments. Macromol Biosci 2024; 24:e2300457. [PMID: 38035637 DOI: 10.1002/mabi.202300457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 11/16/2023] [Indexed: 12/02/2023]
Abstract
Cell encapsulation within three-dimensional hydrogels is a promising approach to mimic tissues. However, true biomimicry of the intricate microenvironment, biophysical and biochemical gradients, and the macroscale hierarchical spatial organizations of native tissues is an unmet challenge within tissue engineering. This review provides an overview of the macromolecular chemistries that have been applied toward the design of cell-friendly hydrogels, as well as their application toward controlling biophysical and biochemical bulk and gradient properties of the microenvironment. Furthermore, biofabrication technologies provide the opportunity to simultaneously replicate macroscale features of native tissues. Biofabrication strategies are reviewed in detail with a particular focus on the compatibility of these strategies with the current macromolecular toolkit described for hydrogel design and the challenges associated with their clinical translation. This review identifies that the convergence of the ever-expanding macromolecular toolkit and technological advancements within the field of biofabrication, along with an improved biological understanding, represents a promising strategy toward the successful tissue regeneration.
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Affiliation(s)
- Bram G Soliman
- School of Materials Science and Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Alessia Longoni
- Department of Orthopedics, University Medical Center Utrecht, Utrecht, 3584CX, The Netherlands
| | - Gretel S Major
- Department of Orthopedic Surgery and Musculoskeletal Medicine, University of Otago, Christchurch, 8011, New Zealand
| | - Gabriella C J Lindberg
- Phil and Penny Knight Campus for Accelerating Scientific Impact Department of Bioengineering, University of Oregon, Eugene, OR, 97403, USA
| | - Yu Suk Choi
- School of Human Sciences, The University of Western Australia, Perth, 6009, Australia
| | - Yu Shrike Zhang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02115, USA
| | - Tim B F Woodfield
- Department of Orthopedic Surgery and Musculoskeletal Medicine, University of Otago, Christchurch, 8011, New Zealand
| | - Khoon S Lim
- Department of Orthopedic Surgery and Musculoskeletal Medicine, University of Otago, Christchurch, 8011, New Zealand
- School of Medical Sciences, University of Sydney, Sydney, 2006, Australia
- Charles Perkins Centre, University of Sydney, Sydney, 2006, Australia
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4
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Chen ST, He SY, Li Y, Gu N, Wen C, Lu J. Metallurgical manipulation of surface Volta potential in bimetals and cell response of human mesenchymal stem cells. BIOMATERIALS ADVANCES 2023; 153:213529. [PMID: 37348184 DOI: 10.1016/j.bioadv.2023.213529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 06/02/2023] [Accepted: 06/15/2023] [Indexed: 06/24/2023]
Abstract
Bioelectricity plays an overriding role in directing cell migration, proliferation, differentiation etc. Tailoring the electro-extracellular environment through metallurgical manipulation could modulate the surrounding cell behaviors. In this study, different electric potential patterns, in terms of Volta potential distribution and gradient, were created on the metallic surface as an electric microenvironment, and their effects on adherent human mesenchymal stem cells were investigated. Periodically and randomly distributed Volta potential pattern, respectively, were generated on the surface through spark plasma sintering of two alternatively stacked dissimilar metals films and of a mixture of metallic powders. Actin cytoskeleton staining demonstrated that the Volta potential pattern strongly affected cell attachment and deformation. The cytoskeletons of cells were observed to elongate along the Volta potential gradient and across the border of adjacent regions with higher and lower potentials. Moreover, the steepest potential gradient resulting from the drastic compositional changes on the periodic borders gave rise to the strongest osteogenic tendency among all the samples. This study suggests that tailoring the Volta potential distribution and gradient of metallic biomaterials via metallurgical manipulation is a promising approach to activate surrounding cells, providing an extra degree of freedom for designing desirable bone-repairing metallic implants.
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Affiliation(s)
- Shi-Ting Chen
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science & Medical Engineering, Southeast University, Nanjing 210096, PR China
| | - Si-Yuan He
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science & Medical Engineering, Southeast University, Nanjing 210096, PR China.
| | - Yan Li
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science & Medical Engineering, Southeast University, Nanjing 210096, PR China
| | - Ning Gu
- Medical School, Nanjing University, Nanjing 210093, PR China
| | - Cuie Wen
- School of Engineering, RMIT University, Melbourne, Victoria 3001, Australia
| | - Jian Lu
- Department of Mechanical Engineering, City University of Hong Kong, Hong Kong
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5
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Ji F, Wu Y, Pumera M, Zhang L. Collective Behaviors of Active Matter Learning from Natural Taxes Across Scales. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2203959. [PMID: 35986637 DOI: 10.1002/adma.202203959] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 07/23/2022] [Indexed: 06/15/2023]
Abstract
Taxis orientation is common in microorganisms, and it provides feasible strategies to operate active colloids as small-scale robots. Collective taxes involve numerous units that collectively perform taxis motion, whereby the collective cooperation between individuals enables the group to perform efficiently, adaptively, and robustly. Hence, analyzing and designing collectives is crucial for developing and advancing microswarm toward practical or clinical applications. In this review, natural taxis behaviors are categorized and synthetic microrobotic collectives are discussed as bio-inspired realizations, aiming at closing the gap between taxis strategies of living creatures and those of functional active microswarms. As collective behaviors emerge within a group, the global taxis to external stimuli guides the group to conduct overall tasks, whereas the local taxis between individuals induces synchronization and global patterns. By encoding the local orientations and programming the global stimuli, various paradigms can be introduced for coordinating and controlling such collective microrobots, from the viewpoints of fundamental science and practical applications. Therefore, by discussing the key points and difficulties associated with collective taxes of different paradigms, this review potentially offers insights into mimicking natural collective behaviors and constructing intelligent microrobotic systems for on-demand control and preassigned tasks.
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Affiliation(s)
- Fengtong Ji
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, 999077, China
| | - Yilin Wu
- Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, 999077, China
| | - Martin Pumera
- Faculty of Electrical Engineering and Computer Science, VSB - Technical University of Ostrava, 17. listopadu 2172/15, Ostrava, 70800, Czech Republic
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea
| | - Li Zhang
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, 999077, China
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Materials and extracellular matrix rigidity highlighted in tissue damages and diseases: Implication for biomaterials design and therapeutic targets. Bioact Mater 2023; 20:381-403. [PMID: 35784640 PMCID: PMC9234013 DOI: 10.1016/j.bioactmat.2022.06.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 06/05/2022] [Accepted: 06/10/2022] [Indexed: 11/21/2022] Open
Abstract
Rigidity (or stiffness) of materials and extracellular matrix has proven to be one of the most significant extracellular physicochemical cues that can control diverse cell behaviors, such as contractility, motility, and spreading, and the resultant pathophysiological phenomena. Many 2D materials engineered with tunable rigidity have enabled researchers to elucidate the roles of matrix biophysical cues in diverse cellular events, including migration, lineage specification, and mechanical memory. Moreover, the recent findings accumulated under 3D environments with viscoelastic and remodeling properties pointed to the importance of dynamically changing rigidity in cell fate control, tissue repair, and disease progression. Thus, here we aim to highlight the works related with material/matrix-rigidity-mediated cell and tissue behaviors, with a brief outlook into the studies on the effects of material/matrix rigidity on cell behaviors in 2D systems, further discussion of the events and considerations in tissue-mimicking 3D conditions, and then examination of the in vivo findings that concern material/matrix rigidity. The current discussion will help understand the material/matrix-rigidity-mediated biological phenomena and further leverage the concepts to find therapeutic targets and to design implantable materials for the treatment of damaged and diseased tissues. Discuss the cutting-edge findings on the role of matrix rigidity in dictating diverse cell behaviors. Underscore the dynamic matrix rigidity that interplays with cells, and the related pathophysiological phenomena. Illuminate the significance of matrix rigidity in clinically-relevant settings.
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Ippolito A, Deshpande VS. Contact guidance via heterogeneity of substrate elasticity. Acta Biomater 2021; 163:158-169. [PMID: 34808415 DOI: 10.1016/j.actbio.2021.11.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/29/2021] [Accepted: 11/16/2021] [Indexed: 10/19/2022]
Abstract
Contact guidance, the widely-known phenomenon of cell alignment, is an essential step in the organization of adherent cells. This guidance is known to occur by, amongst other things, anisotropic features in the environment including elastic heterogeneity. To understand the origins of this guidance we employed a novel statistical thermodynamics framework, which recognises the non-thermal fluctuations in the cellular response, for modelling the response of the cells seeded on substrates with alternating soft and stiff stripes. Consistent with observations, the modelling framework predicts the existence of three regimes of cell guidance: (i) in regime I for stripe widths much larger than the cell size guidance is primarily entropic; (ii) for stripe widths on the order of the cell size in regime II guidance is biochemically mediated and accompanied by changes to the cell morphology while (iii) in regime III for stripe widths much less than the cell size there is no guidance as cells cannot sense the substrate heterogeneity. Guidance in regimes I and II is due to "molli-avoidance" with cells primarily residing on the stiff stripes. While the molli-avoidance tendency is not lost with decreasing density of collagen coating the substrate, the reduced focal adhesion formation with decreasing collagen density tends to inhibit contact guidance. Our results provide clear physical insights into the interplay between cell mechano-sensitivity and substrate elastic heterogeneity that ultimately leads to the contact guidance of cells in heterogeneous tissues. STATEMENT OF SIGNIFICANCE: Cellular morphology and organization play a crucial role in the micro-architecture of tissues and dictates their biological and mechanical functioning. Despite the importance of cellular organization in all facets of tissue biology, the fundamental question of how a cell organizes itself in an anisotropic environment is still poorly understood. We employ a novel statistical thermodynamics framework which recognises the non-thermal fluctuations in the cellular response to investigate cell guidance on substrates with alternating soft and stiff stripes. The propensity of cells to primarily reside on stiff stripes results in strong guidance when the period of the stripes is larger than the cell size. For smaller stripe periods, cells sense a homogeneous substrate and guidance is lost.
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Affiliation(s)
- Alberto Ippolito
- Department of Engineering, Cambridge University, Cambridge CB2 1PZ, UK
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8
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Shirke PU, Goswami H, Kumar V, Shah D, Beri S, Das S, Bellare J, Mayor S, Venkatesh KV, Seth JR, Majumder A. "Viscotaxis"- directed migration of mesenchymal stem cells in response to loss modulus gradient. Acta Biomater 2021; 135:356-367. [PMID: 34469788 DOI: 10.1016/j.actbio.2021.08.039] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 07/30/2021] [Accepted: 08/24/2021] [Indexed: 12/12/2022]
Abstract
Directed cell migration plays a crucial role in physiological and pathological conditions. One important mechanical cue, known to influence cell migration, is the gradient of substrate elastic modulus (E). However, the cellular microenvironment is viscoelastic and hence the elastic property alone is not sufficient to define its material characteristics. To bridge this gap, in this study, we investigated the influence of the gradient of viscous property of the substrate, as defined by loss modulus (G″) on cell migration. We cultured human mesenchymal stem cells (hMSCs) on a collagen-coated polyacrylamide gel with constant storage modulus (G') but with a gradient in the loss modulus (G″). We found hMSCs to migrate from high to low loss modulus. We have termed this form of directional cellular migration as "Viscotaxis". We hypothesize that the high loss modulus regime deforms more due to creep in the long timescale when subjected to cellular traction. Such differential deformation drives the observed Viscotaxis. To verify our hypothesis, we disrupted the actomyosin contractility with myosin inhibitor blebbistatin and ROCK inhibitor Y27632, and found the directional migration to disappear. Further, such time-dependent creep of the high loss material should lead to lower traction, shorter lifetime of the focal adhesions, and dynamic cell morphology, which was indeed found to be the case. Together, findings in this paper highlight the importance of considering the viscous modulus while preparing stiffness-based substrates for the field of tissue engineering. STATEMENT OF SIGNIFICANCE: While the effect of substrate elastic modulus has been investigated extensively in the context of cell biology, the role of substrate viscoelasticity is poorly understood. This omission is surprising as our body is not elastic, but viscoelastic. Hence, the role of viscoelasticity needs to be investigated at depth in various cellular contexts. One such important context is cell migration. Cell migration is important in morphogenesis, immune response, wound healing, and cancer, to name a few. While it is known that cells migrate when presented with a substrate with a rigidity gradient, cellular behavior in response to viscoelastic gradient has never been investigated. The findings of this paper not only reveal a completely novel cellular taxis or directed migration, it also improves our understanding of cell mechanics significantly.
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Affiliation(s)
- Pallavi Uday Shirke
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Hiya Goswami
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Vardhman Kumar
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Darshan Shah
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Sarayu Beri
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bellary Road, Bangalore, India
| | - Siddhartha Das
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Jayesh Bellare
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Satyajit Mayor
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bellary Road, Bangalore, India
| | - K V Venkatesh
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Jyoti R Seth
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai, India.
| | - Abhijit Majumder
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai, India.
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9
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Avoiding tensional equilibrium in cells migrating on a matrix with cell-scale stiffness-heterogeneity. Biomaterials 2021; 274:120860. [PMID: 34004486 DOI: 10.1016/j.biomaterials.2021.120860] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 03/24/2021] [Accepted: 04/23/2021] [Indexed: 12/25/2022]
Abstract
Intracellular stresses affect various cell functions, including proliferation, differentiation and movement, which are dynamically modulated in migrating cells through continuous cell-shaping and remodeling of the cytoskeletal architecture induced by spatiotemporal interactions with extracellular matrix stiffness. When cells migrate on a matrix with cell-scale stiffness-heterogeneity, which is a common situation in living tissues, what intracellular stress dynamics (ISD) emerge? In this study, to explore this issue, finite element method-based traction force microscopy was applied to cells migrating on microelastically patterned gels. Two model systems of microelastically patterned gels (stiff/soft stripe and stiff triangular patterns) were designed to characterize the effects of a spatial constraint on cell-shaping and of the presence of different types of cues to induce competing cellular taxis (usual and reverse durotaxis) on the ISD, respectively. As the main result, the prolonged fluctuation of traction stress on a whole-cell scale was markedly enhanced on single cell-size triangular stiff patterns compared with homogeneous gels. Such ISD enhancement was found to be derived from the interplay between the nomadic migration of cells to regions with different degrees of stiffness and domain shape-dependent traction force dynamics, which should be an essential factor for keeping cells far from tensional equilibrium.
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10
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Okumura S, Hapsianto BN, Lobato-Dauzier N, Ohno Y, Benner S, Torii Y, Tanabe Y, Takada K, Baccouche A, Shinohara M, Kim SH, Fujii T, Genot A. Morphological Manipulation of DNA Gel Microbeads with Biomolecular Stimuli. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:293. [PMID: 33499417 PMCID: PMC7912653 DOI: 10.3390/nano11020293] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 01/15/2021] [Accepted: 01/16/2021] [Indexed: 12/20/2022]
Abstract
Hydrogels are essential in many fields ranging from tissue engineering and drug delivery to food sciences or cosmetics. Hydrogels that respond to specific biomolecular stimuli such as DNA, mRNA, miRNA and small molecules are highly desirable from the perspective of medical applications, however interfacing classical hydrogels with nucleic acids is still challenging. Here were demonstrate the generation of microbeads of DNA hydrogels with droplet microfluidic, and their morphological actuation with DNA strands. Using strand displacement and the specificity of DNA base pairing, we selectively dissolved gel beads, and reversibly changed their size on-the-fly with controlled swelling and shrinking. Lastly, we performed a complex computing primitive-A Winner-Takes-All competition between two populations of gel beads. Overall, these results show that strand responsive DNA gels have tantalizing potentials to enhance and expand traditional hydrogels, in particular for applications in sequencing and drug delivery.
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Affiliation(s)
- Shu Okumura
- LIMMS, CNRS-Institute of Industrial Science, UMI 2820, University of Tokyo, Tokyo 153-8505, Japan; (S.O.); (N.L.-D.); (A.B.); (S.H.K.); (T.F.)
- Department of Bioengineering, The University of Tokyo 7-3-1 Hongo, Bunkyo, Tokyo 113-8654, Japan; (B.N.H.); (M.S.)
- Institute of Industrial Science, The University of Tokyo 4-6-1 Komaba, Meguro, Tokyo 153-8505, Japan
| | - Benediktus Nixon Hapsianto
- Department of Bioengineering, The University of Tokyo 7-3-1 Hongo, Bunkyo, Tokyo 113-8654, Japan; (B.N.H.); (M.S.)
- Institute of Industrial Science, The University of Tokyo 4-6-1 Komaba, Meguro, Tokyo 153-8505, Japan
| | - Nicolas Lobato-Dauzier
- LIMMS, CNRS-Institute of Industrial Science, UMI 2820, University of Tokyo, Tokyo 153-8505, Japan; (S.O.); (N.L.-D.); (A.B.); (S.H.K.); (T.F.)
- Institute of Industrial Science, The University of Tokyo 4-6-1 Komaba, Meguro, Tokyo 153-8505, Japan
| | - Yuto Ohno
- Department of Chemistry, School of Science, The University of Tokyo 7-3-1 Hongo, Bunkyo, Tokyo 113-8654, Japan; (Y.O.); (S.B.); (Y.T.)
| | - Seiju Benner
- Department of Chemistry, School of Science, The University of Tokyo 7-3-1 Hongo, Bunkyo, Tokyo 113-8654, Japan; (Y.O.); (S.B.); (Y.T.)
| | - Yosuke Torii
- Faculty of Agriculture, The University of Tokyo 7-3-1 Hongo, Bunkyo, Tokyo 113-8654, Japan;
| | - Yuuka Tanabe
- Department of Chemistry, School of Science, The University of Tokyo 7-3-1 Hongo, Bunkyo, Tokyo 113-8654, Japan; (Y.O.); (S.B.); (Y.T.)
| | - Kazuki Takada
- Faculty of Pharmaceutical Sciences, The University of Tokyo 7-3-1 Hongo, Bunkyo, Tokyo 113-8654, Japan;
| | - Alexandre Baccouche
- LIMMS, CNRS-Institute of Industrial Science, UMI 2820, University of Tokyo, Tokyo 153-8505, Japan; (S.O.); (N.L.-D.); (A.B.); (S.H.K.); (T.F.)
| | - Marie Shinohara
- Department of Bioengineering, The University of Tokyo 7-3-1 Hongo, Bunkyo, Tokyo 113-8654, Japan; (B.N.H.); (M.S.)
- Institute of Industrial Science, The University of Tokyo 4-6-1 Komaba, Meguro, Tokyo 153-8505, Japan
| | - Soo Hyeon Kim
- LIMMS, CNRS-Institute of Industrial Science, UMI 2820, University of Tokyo, Tokyo 153-8505, Japan; (S.O.); (N.L.-D.); (A.B.); (S.H.K.); (T.F.)
- Institute of Industrial Science, The University of Tokyo 4-6-1 Komaba, Meguro, Tokyo 153-8505, Japan
| | - Teruo Fujii
- LIMMS, CNRS-Institute of Industrial Science, UMI 2820, University of Tokyo, Tokyo 153-8505, Japan; (S.O.); (N.L.-D.); (A.B.); (S.H.K.); (T.F.)
- Institute of Industrial Science, The University of Tokyo 4-6-1 Komaba, Meguro, Tokyo 153-8505, Japan
| | - Anthony Genot
- LIMMS, CNRS-Institute of Industrial Science, UMI 2820, University of Tokyo, Tokyo 153-8505, Japan; (S.O.); (N.L.-D.); (A.B.); (S.H.K.); (T.F.)
- Institute of Industrial Science, The University of Tokyo 4-6-1 Komaba, Meguro, Tokyo 153-8505, Japan
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11
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Shellard A, Mayor R. Durotaxis: The Hard Path from In Vitro to In Vivo. Dev Cell 2020; 56:227-239. [PMID: 33290722 DOI: 10.1016/j.devcel.2020.11.019] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 09/21/2020] [Accepted: 11/17/2020] [Indexed: 01/21/2023]
Abstract
Durotaxis, the process by which cells follow gradients of extracellular mechanical stiffness, has been proposed as a mechanism driving directed migration. Despite the lack of evidence for its existence in vivo, durotaxis has become an active field of research, focusing on the mechanism by which cells respond to mechanical stimuli from the environment. In this review, we describe the technical and conceptual advances in the study of durotaxis in vitro, discuss to what extent the evidence suggests durotaxis may occur in vivo, and emphasize the urgent need for in vivo demonstration of durotaxis.
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Affiliation(s)
- Adam Shellard
- Department of Cell and Developmental Biology, University College London, Gower Street, London WC1E 6BT, UK
| | - Roberto Mayor
- Department of Cell and Developmental Biology, University College London, Gower Street, London WC1E 6BT, UK.
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12
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13
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Kuboki T, Ebata H, Matsuda T, Arai Y, Nagai T, Kidoaki S. Hierarchical Development of Motile Polarity in Durotactic Cells Just Crossing an Elasticity Boundary. Cell Struct Funct 2020; 45:33-43. [PMID: 31902938 PMCID: PMC10739161 DOI: 10.1247/csf.19040] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Accepted: 12/23/2019] [Indexed: 11/11/2022] Open
Abstract
Cellular durotaxis has been extensively studied in the field of mechanobiology. In principle, asymmetric mechanical field of a stiffness gradient generates motile polarity in a cell, which is a driving factor of durotaxis. However, the actual process by which the motile polarity in durotaxis develops is still unclear. In this study, to clarify the details of the kinetics of the development of durotactic polarity, we investigated the dynamics of both cell-shaping and the microscopic turnover of focal adhesions (FAs) for Venus-paxillin-expressing fibroblasts just crossing an elasticity boundary prepared on microelastically patterned gels. The Fourier mode analysis of cell-shaping based on a persistent random deformation model revealed that motile polarity at a cell-body scale was established within the first few hours after the leading edges of a moving cell passed through the boundary from the soft to the stiff regions. A fluorescence recovery after photobleaching (FRAP) analysis showed that the mobile fractions of paxillin at FAs in the anterior part of the cells exhibited an asymmetric increase within several tens of minutes after cells entered the stiff region. The results demonstrated that motile polarity in durotactic cells is established through the hierarchical step-wise development of different types of asymmetricity in the kinetics of FAs activity and cell-shaping with a several-hour time lag.Key words: Microelasticity patterned gel, durotaxis, cell polarity, focal adhesions, paxillin.
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Affiliation(s)
- Thasaneeya Kuboki
- Laboratory of Biomedical and Biophysical Chemistry, Institute for Materials Chemistry and Engineering, Kyushu University, 744 Moto-oka, Nishi ku, Fukuoka, Japan
| | - Hiroyuki Ebata
- Laboratory of Biomedical and Biophysical Chemistry, Institute for Materials Chemistry and Engineering, Kyushu University, 744 Moto-oka, Nishi ku, Fukuoka, Japan
| | - Tomoki Matsuda
- Department of Biomolecular Science and Engineering. The Institute of Scientific and Industrial Research, Osaka University, Mihogaoka 8-1, Ibaraki, Osaka, Japan
| | - Yoshiyuki Arai
- Department of Biomolecular Science and Engineering. The Institute of Scientific and Industrial Research, Osaka University, Mihogaoka 8-1, Ibaraki, Osaka, Japan
| | - Takeharu Nagai
- Department of Biomolecular Science and Engineering. The Institute of Scientific and Industrial Research, Osaka University, Mihogaoka 8-1, Ibaraki, Osaka, Japan
| | - Satoru Kidoaki
- Laboratory of Biomedical and Biophysical Chemistry, Institute for Materials Chemistry and Engineering, Kyushu University, 744 Moto-oka, Nishi ku, Fukuoka, Japan
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14
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General cellular durotaxis induced with cell-scale heterogeneity of matrix-elasticity. Biomaterials 2020; 230:119647. [DOI: 10.1016/j.biomaterials.2019.119647] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 11/18/2019] [Accepted: 11/21/2019] [Indexed: 12/12/2022]
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15
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Sasaki S, Kidoaki S. Precise design of microwrinkles through the independent regulation of elasticity on the surface and in the bulk of soft hydrogels. Polym J 2019. [DOI: 10.1038/s41428-019-0299-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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16
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Moriyama K, Kidoaki S. Cellular Durotaxis Revisited: Initial-Position-Dependent Determination of the Threshold Stiffness Gradient to Induce Durotaxis. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:7478-7486. [PMID: 30230337 DOI: 10.1021/acs.langmuir.8b02529] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Directional cell movement from a softer to a stiffer region on a culture substrate with a stiffness gradient, so-called durotaxis, has attracted considerable interest in the field of mechanobiology. Although the strength of a stiffness gradient has been known to influence durotaxis, the precise manipulation of durotactic cells has not been established due to the limited knowledge available on how the threshold stiffness gradient (TG) for durotaxis is determined. In the present study, to clarify the principles for the manipulation of durotaxis, we focused on the absolute stiffness of the soft region and evaluated its effect on the determination of TG required to induce durotaxis. Microelastically patterned gels that differed with respect to both the absolute stiffness of the soft region and the strength of the stiffness gradient were photolithographically prepared using photo-cross-linkable gelatins, and the TG for mesenchymal stem cells (MSCs) was examined systematically for each stiffness value of the soft region. As a result, the TG values for soft regions with stiffnesses of 2.5, 5, and 10 kPa were 0.14, 1.0, and 1.4 kPa/μm, respectively, i.e., TG markedly increased with an increase in the absolute stiffness of the soft region. An analysis of the area and long-axis length for focal adhesions revealed that the adhesivity of MSCs was more stable on a stiffer soft region. These results suggested that the initial location of cells starting durotaxis plays an essential role in determining the TG values and furthermore that the relationship between the position-dependent TG and intrinsic stiffness gradient (IG) of the culture substrate should be carefully reconsidered for inducing durotaxis; IG must be higher than TG (IG ≥ TG). This principle provides a fundamental guide for designing biomaterials to manipulate cellular durotaxis.
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Affiliation(s)
- Kousuke Moriyama
- Laboratory of Biomedical and Biophysical Chemistry, Institute for Materials Chemistry and Engineering , Kyushu University , 744 Moto-oka, Nishi ku , Fukuoka , Japan
| | - Satoru Kidoaki
- Laboratory of Biomedical and Biophysical Chemistry, Institute for Materials Chemistry and Engineering , Kyushu University , 744 Moto-oka, Nishi ku , Fukuoka , Japan
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17
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Kidoaki S. Frustrated differentiation of mesenchymal stem cells. Biophys Rev 2019; 11:377-382. [PMID: 31102200 DOI: 10.1007/s12551-019-00528-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 04/22/2019] [Indexed: 12/11/2022] Open
Abstract
Mesenchymal stem cells (MSCs) are one of the most useful cell resources for clinical application in regenerative medicine. However, standardization and quality assurance of MSCs are still essential problems because the stemness of MSCs depends on such factors as the collection method, individual differences associated with the source, and cell culture history. As such, the establishment of culture techniques which assure the stemness of MSCs is of vital importance. One important factor affecting MSCs during culture is the effect of the mechanobiological memory of cultured MSCs built up by their encounter with particular mechanical properties of the extracellular mechanical milieu. How can we guarantee that MSCs will remain in an undifferentiated state? Procedures capable of eliminating effects related to the history of the mechanical dose for cultured MSCs are required. For this problem, we have tried to establish the design of microelastically patterned cell-culture matrix which can effectively induce mechanical oscillations during the period of nomadic migration of cells among different regions of the matrix. We have previously observed before that the MSCs exposed to such a growth regimen during nomadic culture keep their undifferentiated state-with this maintenance of stemness believed due to lack of a particular regular mechanical dosage that is likely to determine a specific lineage. We have termed this situation as "frustrated differentiation". In this minireview, I introduce the concept of frustrated differentiation of MSCs and show possibility of purposeful regulation of this phenomenon.
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Affiliation(s)
- Satoru Kidoaki
- Laboratory of Biomedical and Biophysical Chemistry, Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka, 819-0395, Japan.
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18
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DuChez BJ, Doyle AD, Dimitriadis EK, Yamada KM. Durotaxis by Human Cancer Cells. Biophys J 2019; 116:670-683. [PMID: 30709621 PMCID: PMC6382956 DOI: 10.1016/j.bpj.2019.01.009] [Citation(s) in RCA: 110] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 12/11/2018] [Accepted: 01/07/2019] [Indexed: 01/05/2023] Open
Abstract
Durotaxis is a type of directed cell migration in which cells respond to a gradient of extracellular stiffness. Using automated tracking of positional data for large sample sizes of single migrating cells, we investigated 1) whether cancer cells can undergo durotaxis; 2) whether cell durotactic efficiency varies depending on the regional compliance of stiffness gradients; 3) whether a specific cell migration parameter such as speed or time of migration correlates with durotaxis; and 4) whether Arp2/3, previously implicated in leading edge dynamics and migration, contributes to cancer cell durotaxis. Although durotaxis has been characterized primarily in nonmalignant mesenchymal cells, little is known about its role in cancer cell migration. Diffusible factors are known to affect cancer cell migration and metastasis. However, because many tumor microenvironments gradually stiffen, we hypothesized that durotaxis might also govern migration of cancer cells. We evaluated the durotactic potential of multiple cancer cell lines by employing substrate stiffness gradients mirroring the physiological stiffness encountered by cells in a variety of tissues. Automated cell tracking permitted rapid acquisition of positional data and robust statistical analyses for migrating cells. These durotaxis assays demonstrated that all cancer cell lines tested (two glioblastoma, metastatic breast cancer, and fibrosarcoma) migrated directionally in response to changes in extracellular stiffness. Unexpectedly, all cancer cell lines tested, as well as noninvasive human fibroblasts, displayed the strongest durotactic migratory response when migrating on the softest regions of stiffness gradients (2-7 kPa), with decreased responsiveness on stiff regions of gradients. Focusing on glioblastoma cells, durotactic forward migration index and displacement rates were relatively stable over time. Correlation analyses showed the expected correlation with displacement along the gradient but much less with persistence and none with cell speed. Finally, we found that inhibition of Arp2/3, an actin-nucleating protein necessary for lamellipodial protrusion, impaired durotactic migration.
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Affiliation(s)
- Brian J DuChez
- Cell Biology Section, Division of Intramural Research, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, Maryland
| | - Andrew D Doyle
- Cell Biology Section, Division of Intramural Research, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, Maryland
| | - Emilios K Dimitriadis
- Trans-NIH Shared Resource on Biomedical Engineering and Physical Science, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, Maryland
| | - Kenneth M Yamada
- Cell Biology Section, Division of Intramural Research, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, Maryland.
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19
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Okimura C, Sakumura Y, Shimabukuro K, Iwadate Y. Sensing of substratum rigidity and directional migration by fast-crawling cells. Phys Rev E 2018; 97:052401. [PMID: 29906928 DOI: 10.1103/physreve.97.052401] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Indexed: 12/24/2022]
Abstract
Living cells sense the mechanical properties of their surrounding environment and respond accordingly. Crawling cells detect the rigidity of their substratum and migrate in certain directions. They can be classified into two categories: slow-moving and fast-moving cell types. Slow-moving cell types, such as fibroblasts, smooth muscle cells, mesenchymal stem cells, etc., move toward rigid areas on the substratum in response to a rigidity gradient. However, there is not much information on rigidity sensing in fast-moving cell types whose size is ∼10 μm and migration velocity is ∼10 μm/min. In this study, we used both isotropic substrata with different rigidities and an anisotropic substratum that is rigid on the x axis but soft on the y axis to demonstrate rigidity sensing by fast-moving Dictyostelium cells and neutrophil-like differentiated HL-60 cells. Dictyostelium cells exerted larger traction forces on a more rigid isotropic substratum. Dictyostelium cells and HL-60 cells migrated in the "soft" direction on the anisotropic substratum, although myosin II-null Dictyostelium cells migrated in random directions, indicating that rigidity sensing of fast-moving cell types differs from that of slow types and is induced by a myosin II-related process.
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Affiliation(s)
- Chika Okimura
- Faculty of Science, Yamaguchi University, Yamaguchi 753-8512, Japan
| | - Yuichi Sakumura
- School of Information Science and Technology, Aichi Prefectural University, Aichi 480-1198, Japan.,Graduate School of Science and Technology, Nara Institute of Science and Technology, Nara, 630-0192, Japan
| | - Katsuya Shimabukuro
- Department of Chemical and Biological Engineering, National Institute of Technology, Ube College, Ube 755-8555, Japan
| | - Yoshiaki Iwadate
- Faculty of Science, Yamaguchi University, Yamaguchi 753-8512, Japan
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20
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Ebata H, Yamamoto A, Tsuji Y, Sasaki S, Moriyama K, Kuboki T, Kidoaki S. Persistent random deformation model of cells crawling on a gel surface. Sci Rep 2018; 8:5153. [PMID: 29581462 PMCID: PMC5980085 DOI: 10.1038/s41598-018-23540-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 03/15/2018] [Indexed: 12/19/2022] Open
Abstract
In general, cells move on a substrate through extension and contraction of the cell body. Though cell movement should be explained by taking into account the effect of such shape fluctuations, past approaches to formulate cell-crawling have not sufficiently quantified the relationship between cell movement (velocity and trajectory) and shape fluctuations based on experimental data regarding actual shaping dynamics. To clarify this relationship, we experimentally characterized cell-crawling in terms of shape fluctuations, especially extension and contraction, by using an elasticity-tunable gel substrate to modulate cell shape. As a result, an amoeboid swimmer-like relation was found to arise between the cell velocity and cell-shape dynamics. To formulate this experimentally-obtained relationship between cell movement and shaping dynamics, we established a persistent random deformation (PRD) model based on equations of a deformable self-propelled particle adopting an amoeboid swimmer-like velocity-shape relationship. The PRD model successfully explains the statistical properties of velocity, trajectory and shaping dynamics of the cells including back-and-forth motion, because the velocity equation exhibits time-reverse symmetry, which is essentially different from previous models. We discuss the possible application of this model to classify the phenotype of cell migration based on the characteristic relation between movement and shaping dynamics.
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Affiliation(s)
- Hiroyuki Ebata
- Laboratory of Biomedical and Biophysical Chemistry, Institute for Materials Chemistry and Engineering, Kyushu University, CE41-204, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan.
| | - Aki Yamamoto
- Laboratory of Biomedical and Biophysical Chemistry, Institute for Materials Chemistry and Engineering, Kyushu University, CE41-204, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Yukie Tsuji
- Laboratory of Biomedical and Biophysical Chemistry, Institute for Materials Chemistry and Engineering, Kyushu University, CE41-204, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Saori Sasaki
- Laboratory of Biomedical and Biophysical Chemistry, Institute for Materials Chemistry and Engineering, Kyushu University, CE41-204, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Kousuke Moriyama
- Laboratory of Biomedical and Biophysical Chemistry, Institute for Materials Chemistry and Engineering, Kyushu University, CE41-204, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Thasaneeya Kuboki
- Laboratory of Biomedical and Biophysical Chemistry, Institute for Materials Chemistry and Engineering, Kyushu University, CE41-204, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Satoru Kidoaki
- Laboratory of Biomedical and Biophysical Chemistry, Institute for Materials Chemistry and Engineering, Kyushu University, CE41-204, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan.
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21
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Tanaka A, Fujii Y, Kasai N, Okajima T, Nakashima H. Regulation of neuritogenesis in hippocampal neurons using stiffness of extracellular microenvironment. PLoS One 2018; 13:e0191928. [PMID: 29408940 PMCID: PMC5800654 DOI: 10.1371/journal.pone.0191928] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 01/15/2018] [Indexed: 11/19/2022] Open
Abstract
The mechanosensitivity of neurons in the central nervous system (CNS) is an interesting issue as regards understanding neuronal development and designing compliant materials as neural interfaces between neurons and external devices for treating CNS injuries and disorders. Although neurite initiation from a cell body is known to be the first step towards forming a functional nervous network during development or regeneration, less is known about how the mechanical properties of the extracellular microenvironment affect neuritogenesis. Here, we investigated the filamentous actin (F-actin) cytoskeletal structures of neurons, which are a key factor in neuritogenesis, on gel substrates with a stiffness-controlled substrate, to reveal the relationship between substrate stiffness and neuritogenesis. We found that neuritogenesis was significantly suppressed on a gel substrate with an elastic modulus higher than the stiffness of in vivo brain. Fluorescent images of the F-actin cytoskeletal structures showed that the F-actin organization depended on the substrate stiffness. Circumferential actin meshworks and arcs were formed at the edge of the cell body on the stiff gel substrates unlike with soft substrates. The suppression of F-actin cytoskeleton formation improved neuritogenesis. The results indicate that the organization of neuronal F-actin cytoskeletons is strongly regulated by the mechanical properties of the surrounding environment, and the mechanically-induced F-actin cytoskeletons regulate neuritogenesis.
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Affiliation(s)
- Aya Tanaka
- NTT Basic Research Laboratories NTT Corporation, Atsugi, Kanagawa, Japan
- * E-mail:
| | - Yuki Fujii
- Graduate School of Information Science and Technology, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Nahoko Kasai
- NTT Basic Research Laboratories NTT Corporation, Atsugi, Kanagawa, Japan
| | - Takaharu Okajima
- Graduate School of Information Science and Technology, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Hiroshi Nakashima
- NTT Basic Research Laboratories NTT Corporation, Atsugi, Kanagawa, Japan
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22
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Hartman CD, Isenberg BC, Chua SG, Wong JY. Extracellular matrix type modulates cell migration on mechanical gradients. Exp Cell Res 2017; 359:361-366. [PMID: 28821395 PMCID: PMC5603420 DOI: 10.1016/j.yexcr.2017.08.018] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 07/21/2017] [Accepted: 08/12/2017] [Indexed: 11/25/2022]
Abstract
Extracellular matrix composition and stiffness are known to be critical determinants of cell behavior, modulating processes including differentiation, traction generation, and migration. Recent studies have demonstrated that the ECM composition can modulate how cells migrate in response to gradients in environmental stiffness, altering a cell's ability to undergo durotaxis. These observations were limited to single varieties of extracellular matrix, but typically cells are exposed to environments containing complex mixtures of extracellular matrix proteins. Here, we investigate migration of NIH 3T3 fibroblasts on mechanical gradients coated with one or more type of extracellular matrix protein. Our results show that NIH 3T3 fibroblasts exhibit durotaxis on fibronectin-coated mechanical gradients but not on those coated with laminin, demonstrating that extracellular matrix type can act as a regulator of cell response to mechanical gradients. Interestingly, NIH 3T3 fibroblasts were also observed to migrate randomly on gradients coated with a mixture of both fibronectin and laminin, suggesting that there may be a complex interplay in the cellular response to mechanical gradients in the presence of multiple extracellular matrix signals. These findings indicate that specific composition of available adhesion ligands is a critical determinant of a cell's migratory response to mechanical gradients.
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Affiliation(s)
- Christopher D Hartman
- Department of Biomedical Engineering, Boston University, Boston, MA 02215, United States
| | - Brett C Isenberg
- Department of Biomedical Engineering, Boston University, Boston, MA 02215, United States
| | - Samantha G Chua
- Department of Biomedical Engineering, Boston University, Boston, MA 02215, United States
| | - Joyce Y Wong
- Department of Biomedical Engineering, Boston University, Boston, MA 02215, United States.
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23
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Hörning M, Nakahata M, Linke P, Yamamoto A, Veschgini M, Kaufmann S, Takashima Y, Harada A, Tanaka M. Dynamic Mechano-Regulation of Myoblast Cells on Supramolecular Hydrogels Cross-Linked by Reversible Host-Guest Interactions. Sci Rep 2017; 7:7660. [PMID: 28794475 PMCID: PMC5550483 DOI: 10.1038/s41598-017-07934-x] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Accepted: 07/05/2017] [Indexed: 01/09/2023] Open
Abstract
A new class of supramolecular hydrogels, cross-linked by host-guest interactions between β-cyclodextrin (βCD) and adamantane, were designed for the dynamic regulation of cell-substrate interactions. The initial substrate elasticity can be optimized by selecting the molar fraction of host- and guest monomers for the target cells. Moreover, owing to the reversible nature of host-guest interactions, the magnitude of softening and stiffening of the substrate can be modulated by varying the concentrations of free, competing host molecules (βCD) in solutions. By changing the substrate elasticity at a desired time point, it is possible to switch the micromechanical environments of cells. We demonstrated that the Young's modulus of our "host-guest gels", 4-11 kPa, lies in an optimal range not only for static (ex situ) but also for dynamic (in situ) regulation of cell morphology and cytoskeletal ordering of myoblasts. Compared to other stimulus-responsive materials that can either change the elasticity only in one direction or rely on less biocompatible stimuli such as UV light and temperature change, our supramolecular hydrogel enables to reversibly apply mechanical cues to various cell types in vitro without interfering cell viability.
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Affiliation(s)
- Marcel Hörning
- Institute for Integrated Cell-Material Science (WPI iCeMS), Kyoto University, Kyoto, 606-8501, Japan
- Institute of Biomaterials and Biomolecular Systems (IBBS), University of Stuttgart, 70569, Stuttgart, Germany
| | - Masaki Nakahata
- Project Research Center for Fundamental Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka, 560-0043, Japan
- Division of Chemical Engineering, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka, 560-8531, Japan
| | - Philipp Linke
- Physical Chemistry of Biosystems, University of Heidelberg, D69120, Heidelberg, Germany
| | - Akihisa Yamamoto
- Institute for Integrated Cell-Material Science (WPI iCeMS), Kyoto University, Kyoto, 606-8501, Japan
| | - Mariam Veschgini
- Physical Chemistry of Biosystems, University of Heidelberg, D69120, Heidelberg, Germany
| | - Stefan Kaufmann
- Physical Chemistry of Biosystems, University of Heidelberg, D69120, Heidelberg, Germany
| | - Yoshinori Takashima
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka, 560-0043, Japan
| | - Akira Harada
- Project Research Center for Fundamental Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka, 560-0043, Japan.
| | - Motomu Tanaka
- Institute for Integrated Cell-Material Science (WPI iCeMS), Kyoto University, Kyoto, 606-8501, Japan.
- Physical Chemistry of Biosystems, University of Heidelberg, D69120, Heidelberg, Germany.
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24
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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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25
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MIYOSHI H, NISHIMURA M, YAMAGATA Y, LIU H, WATANABE Y, SUGAWARA M. Cell migration guided by a groove with branches. ACTA ACUST UNITED AC 2017. [DOI: 10.1299/jbse.16-00613] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hiromi MIYOSHI
- Pathophysiological and Health Science Team, RIKEN Center for Life Science Technologies
- Health Metrics Development Team, RIKEN Compass to Healthy Life Research Complex Program
- PRIME, AMED
| | | | - Yutaka YAMAGATA
- Ultrahigh Precision Optics Technology Team, RIKEN Center for Advanced Photonics
| | - Hao LIU
- Graduate School of Engineering, Chiba University
| | - Yasuyoshi WATANABE
- Pathophysiological and Health Science Team, RIKEN Center for Life Science Technologies
- Health Metrics Development Team, RIKEN Compass to Healthy Life Research Complex Program
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26
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Dynamics of Actin Stress Fibers and Focal Adhesions during Slow Migration in Swiss 3T3 Fibroblasts: Intracellular Mechanism of Cell Turning. BIOMED RESEARCH INTERNATIONAL 2016; 2016:5749749. [PMID: 28119928 PMCID: PMC5227335 DOI: 10.1155/2016/5749749] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 11/23/2016] [Accepted: 12/06/2016] [Indexed: 12/17/2022]
Abstract
To understand the mechanism regulating the spontaneous change in polarity that leads to cell turning, we quantitatively analyzed the dynamics of focal adhesions (FAs) coupling with the self-assembling actin cytoskeletal structure in Swiss 3T3 fibroblasts. Fluorescent images were acquired from cells expressing GFP-actin and RFP-zyxin by laser confocal microscopy. On the basis of the maximum area, duration, and relocation distance of FAs extracted from the RFP-zyxin images, the cells could be divided into 3 regions: the front region, intermediate lateral region, and rear region. In the intermediate lateral region, FAs appeared close to the leading edge and were stabilized gradually as its area increased. Simultaneously, bundled actin stress fibers (SFs) were observed vertically from the positions of these FAs, and they connected to the other SFs parallel to the leading edge. Finally, these connecting SFs fused to form a single SF with matured FAs at both ends. This change in SF organization with cell retraction in the first cycle of migration followed by a newly formed protrusion in the next cycle is assumed to lead to cell turning in migrating Swiss 3T3 fibroblasts.
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Hartman CD, Isenberg BC, Chua SG, Wong JY. Vascular smooth muscle cell durotaxis depends on extracellular matrix composition. Proc Natl Acad Sci U S A 2016; 113:11190-11195. [PMID: 27647912 PMCID: PMC5056055 DOI: 10.1073/pnas.1611324113] [Citation(s) in RCA: 89] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Mechanical compliance has been demonstrated to be a key determinant of cell behavior, directing processes such as spreading, migration, and differentiation. Durotaxis, directional migration from softer to more stiff regions of a substrate, has been observed for a variety of cell types. Recent stiffness mapping experiments have shown that local changes in tissue stiffness in disease are often accompanied by an altered ECM composition in vivo. However, the importance of ECM composition in durotaxis has not yet been explored. To address this question, we have developed and characterized a polyacrylamide hydrogel culture platform featuring highly tunable gradients in mechanical stiffness. This feature, together with the ability to control ECM composition, allows us to isolate the effects of mechanical and biological signals on cell migratory behavior. Using this system, we have tracked vascular smooth muscle cell migration in vitro and quantitatively analyzed differences in cell migration as a function of ECM composition. Our results show that vascular smooth muscle cells undergo durotaxis on mechanical gradients coated with fibronectin but not on those coated with laminin. These findings indicate that the composition of the adhesion ligand is a critical determinant of a cell's migratory response to mechanical gradients.
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Affiliation(s)
| | - Brett C Isenberg
- Department of Biomedical Engineering, Boston University, Boston, MA 02215
| | - Samantha G Chua
- Department of Biomedical Engineering, Boston University, Boston, MA 02215
| | - Joyce Y Wong
- Department of Biomedical Engineering, Boston University, Boston, MA 02215
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Sunyer R, Conte V, Escribano J, Elosegui-Artola A, Labernadie A, Valon L, Navajas D, Garcia-Aznar JM, Munoz JJ, Roca-Cusachs P, Trepat X. Collective cell durotaxis emerges from long-range intercellular force transmission. Science 2016; 353:1157-61. [DOI: 10.1126/science.aaf7119] [Citation(s) in RCA: 387] [Impact Index Per Article: 48.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 07/27/2016] [Indexed: 12/29/2022]
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Fabrication of Elasticity-Tunable Gelatinous Gel for Mesenchymal Stem Cell Culture. Methods Mol Biol 2016. [PMID: 27236687 DOI: 10.1007/978-1-4939-3584-0_25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
Surface elasticity or stiffness of an underlying substrate may regulate cellular functions such as adhesion, proliferation, signaling, differentiation, and migration. Recent studies have reported on the development of biomaterials to control stem cell fate determination via the stiffness of the culture substrates. In this chapter, we provide a detailed protocol for fabricating elasticity-tunable gelatinous hydrogels for stem cell culture with photo-induced or thermo-induced crosslinking of well-developed styrenated gelatin (StG). We also include the detailed application of gelatinous gel for mesenchymal stem cell (MSC) culture and sample collection for transcriptional and proteomic analysis.
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30
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Frequent mechanical stress suppresses proliferation of mesenchymal stem cells from human bone marrow without loss of multipotency. Sci Rep 2016; 6:24264. [PMID: 27080570 PMCID: PMC4832181 DOI: 10.1038/srep24264] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Accepted: 03/23/2016] [Indexed: 12/25/2022] Open
Abstract
Mounting evidence indicated that human mesenchymal stem cells (hMSCs) are responsive not only to biochemical but also to physical cues, such as substrate topography and stiffness. To simulate the dynamic structures of extracellular environments of the marrow in vivo, we designed a novel surrogate substrate for marrow derived hMSCs based on physically cross-linked hydrogels whose elasticity can be adopted dynamically by chemical stimuli. Under frequent mechanical stress, hMSCs grown on our hydrogel substrates maintain the expression of STRO-1 over 20 d, irrespective of the substrate elasticity. On exposure to the corresponding induction media, these cultured hMSCs can undergo adipogenesis and osteogenesis without requiring cell transfer onto other substrates. Moreover, we demonstrated that our surrogate substrate suppresses the proliferation of hMSCs by up to 90% without any loss of multiple lineage potential by changing the substrate elasticity every 2nd days. Such “dynamic in vitro niche” can be used not only for a better understanding of the role of dynamic mechanical stresses on the fate of hMSCs but also for the synchronized differentiation of adult stem cells to a specific lineage.
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31
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Cai P, Layani M, Leow WR, Amini S, Liu Z, Qi D, Hu B, Wu YL, Miserez A, Magdassi S, Chen X. Bio-Inspired Mechanotactic Hybrids for Orchestrating Traction-Mediated Epithelial Migration. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:3102-3110. [PMID: 26913959 DOI: 10.1002/adma.201505300] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Revised: 12/17/2015] [Indexed: 06/05/2023]
Abstract
A platform of mechanotactic hybrids is established by projecting lateral gradients of apparent interfacial stiffness onto the planar surface of a compliant hydrogel layer using an underlying rigid substrate with microstructures inherited from 3D printed molds. Using this platform, the mechanistic coupling of epithelial migration with the stiffness of the extracellular matrix (ECM) is found to be independent of the interfacial compositional and topographical cues.
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Affiliation(s)
- Pingqiang Cai
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Michael Layani
- Casali Center, Institute of Chemistry, Centre for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Edmond J. Safra Campus, Givat Ram, Jerusalem, 91904, Israel
| | - Wan Ru Leow
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Shahrouz Amini
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Zhiyuan Liu
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Dianpeng Qi
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Benhui Hu
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Yun-Long Wu
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Ali Miserez
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Shlomo Magdassi
- Casali Center, Institute of Chemistry, Centre for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Edmond J. Safra Campus, Givat Ram, Jerusalem, 91904, Israel
| | - Xiaodong Chen
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
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Ariga K, Minami K, Ebara M, Nakanishi J. What are the emerging concepts and challenges in NANO? Nanoarchitectonics, hand-operating nanotechnology and mechanobiology. Polym J 2016. [DOI: 10.1038/pj.2016.8] [Citation(s) in RCA: 155] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Kim YJ, Tachibana M, Umezu M, Matsunaga YT. Bio-inspired smart hydrogel with temperature-dependent properties and enhanced cell attachment. J Mater Chem B 2016; 4:1740-1746. [DOI: 10.1039/c5tb02735g] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Stimuli-responsive smart hydrogels have been exploited for various applications, including as biomaterials with environment-dependent changes in hydrophobicity, stiffness or volume.
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Affiliation(s)
- Young-Jin Kim
- Center for International Research on Integrative Biomedical Systems (CIBiS)
- The University of Tokyo
- Meguro-ku
- Japan
- Japan Society for the Promotion of Science (JSPS)
| | - Misa Tachibana
- Center for International Research on Integrative Biomedical Systems (CIBiS)
- The University of Tokyo
- Meguro-ku
- Japan
- Department of Modern Mechanical Engineering
| | - Mitsuo Umezu
- Department of Modern Mechanical Engineering
- School of Creative Science and Engineering
- TWIns
- Waseda University
- Shinjuku-ku
| | - Yukiko T. Matsunaga
- Center for International Research on Integrative Biomedical Systems (CIBiS)
- The University of Tokyo
- Meguro-ku
- Japan
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Ueki A, Kidoaki S. Manipulation of cell mechanotaxis by designing curvature of the elasticity boundary on hydrogel matrix. Biomaterials 2015; 41:45-52. [DOI: 10.1016/j.biomaterials.2014.11.030] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Revised: 10/29/2014] [Accepted: 11/08/2014] [Indexed: 10/24/2022]
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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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36
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Fibroblasts probe substrate rigidity with filopodia extensions before occupying an area. Proc Natl Acad Sci U S A 2014; 111:17176-81. [PMID: 25404288 DOI: 10.1073/pnas.1412285111] [Citation(s) in RCA: 97] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Rigidity sensing and durotaxis are thought to be important elements in wound healing, tissue formation, and cancer treatment. It has been challenging, however, to study the underlying mechanism due to difficulties in capturing cells during the transient response to a rigidity interface. We have addressed this problem by developing a model experimental system that confines cells to a micropatterned area with a rigidity border. The system consists of a rigid domain of one large adhesive island, adjacent to a soft domain of small adhesive islands grafted on a nonadhesive soft gel. This configuration allowed us to test rigidity sensing away from the cell body during probing and spreading. NIH 3T3 cells responded to the micropatterned rigidity border similarly to cells at a conventional rigidity border, by showing a strong preference for staying on the rigid side. Furthermore, cells used filopodia extensions to probe substrate rigidity at a distance in front of the leading edge and regulated their responses based on the strain of the intervening substrate. Soft substrates inhibited focal adhesion maturation and promoted cell retraction, whereas rigid substrates allowed stable adhesions and cell spreading. Myosin II was required for not only the generation of probing forces but also the retraction in response to soft substrates. We suggest that a myosin II-driven, filopodia-based probing mechanism ahead of the leading edge allows cells to migrate efficiently, by sensing physical characteristics before moving over a substrate to avoid backtracking.
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37
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Miyoshi H, Adachi T. Topography design concept of a tissue engineering scaffold for controlling cell function and fate through actin cytoskeletal modulation. TISSUE ENGINEERING PART B-REVIEWS 2014; 20:609-27. [PMID: 24720435 DOI: 10.1089/ten.teb.2013.0728] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The physiological role of the actin cytoskeleton is well known: it provides mechanical support and endogenous force generation for formation of a cell shape and for migration. Furthermore, a growing number of studies have demonstrated another significant role of the actin cytoskeleton: it offers dynamic epigenetic memory for guiding cell fate, in particular, proliferation and differentiation. Because instantaneous imbalance in the mechanical homeostasis is adjusted through actin remodeling, a synthetic extracellular matrix (ECM) niche as a source of topographical and mechanical cues is expected to be effective at modulation of the actin cytoskeleton. In this context, the synthetic ECM niche determines cell migration, proliferation, and differentiation, all of which have to be controlled in functional tissue engineering scaffolds to ensure proper regulation of tissue/organ formation, maintenance of tissue integrity and repair, and regeneration. Here, with an emphasis on the epigenetic role of the actin cytoskeletal system, we propose a design concept of micro/nanotopography of a tissue engineering scaffold for control of cell migration, proliferation, and differentiation in a stable and well-defined manner, both in vitro and in vivo.
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Affiliation(s)
- Hiromi Miyoshi
- 1 Ultrahigh Precision Optics Technology Team , RIKEN Center for Advanced Photonics, Saitama, Japan
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38
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Kuboki T, Chen W, Kidoaki S. Time-dependent migratory behaviors in the long-term studies of fibroblast durotaxis on a hydrogel substrate fabricated with a soft band. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:6187-96. [PMID: 24851722 PMCID: PMC4051246 DOI: 10.1021/la501058j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Durotaxis, biased cell movement up a stiffness gradient on culture substrates, is one of the useful taxis behaviors for manipulating cell migration on engineered biomaterial surfaces. In this study, long-term durotaxis was investigated on gelatinous substrates containing a soft band of 20, 50, and 150 μm in width fabricated using photolithographic elasticity patterning; sharp elasticity boundaries with a gradient strength of 300 kPa/50 μm were achieved. Time-dependent migratory behaviors of 3T3 fibroblast cells were observed during a time period of 3 days. During the first day, most of the cells were strongly repelled by the soft band independent of bandwidth, exhibiting the typical durotaxis behavior. However, the repellency by the soft band diminished, and more cells crossed the soft band or exhibited other mixed migratory behaviors during the course of the observation. It was found that durotaxis strength is weakened on the substrate with the narrowest soft band and that adherent affinity-induced entrapment becomes apparent on the widest soft band with time. Factors, such as changes in surface topography, elasticity, and/or chemistry, likely contributing to the apparent diminishing durotaxis during the extended culture were examined. Immunofluorescence analysis indicated preferential collagen deposition onto the soft band, which is derived from secretion by fibroblast cells, resulting in the increasing contribution of haptotaxis toward the soft band over time. The deposited collagen did not affect surface topography or surface elasticity but did change surface chemistry, especially on the soft band. The observed time-dependent durotaxis behaviors are the result of the mixed mechanical and chemical cues. In the studies and applications of cell migratory behavior under a controlled stimulus, it is important to thoroughly examine other (hidden) compounding stimuli in order to be able to accurately interpret data and to design suitable biomaterials to manipulate cell migration.
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Affiliation(s)
- Thasaneeya Kuboki
- Laboratory
of Biomedical and Biophysical Chemistry, Institute for Materials Chemistry
and Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Wei Chen
- Chemistry
Department, Mount Holyoke College, South Hadley, Massachusetts 01075, United States
- E-mail ; tel 413-538-2224; fax 413-538-2327 (W.C.)
| | - Satoru Kidoaki
- Laboratory
of Biomedical and Biophysical Chemistry, Institute for Materials Chemistry
and Engineering, Kyushu University, Fukuoka 819-0395, Japan
- E-mail ; tel 81-92-802-2507; fax 81-92-802-2509 (S.K.)
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Degand S, Knoops B, Dupont-Gillain CC. Design and characterization of surfaces presenting mechanical nanoheterogeneities for a better control of cell–material interactions. Colloids Surf A Physicochem Eng Asp 2014. [DOI: 10.1016/j.colsurfa.2013.05.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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40
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Kawano T, Sato M, Yabu H, Shimomura M. Honeycomb-shaped surface topography induces differentiation of human mesenchymal stem cells (hMSCs): uniform porous polymer scaffolds prepared by the breath figure technique. Biomater Sci 2014; 2:52-6. [DOI: 10.1039/c3bm60195a] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Shimada N, Kidoaki S, Maruyama A. Smart hydrogels exhibiting UCST-type volume changes under physiologically relevant conditions. RSC Adv 2014. [DOI: 10.1039/c4ra10612a] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Hydrogels composed of poly(allylurea) copolymers exhibited rapid temperature positive volume changes without hysteresis under physiologically relevant conditions.
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Affiliation(s)
- Naohiko Shimada
- Department of Biomolecular Engineering
- Tokyo Institute of Technology
- Yokohama 226-8501, Japan
| | - Satoru Kidoaki
- Institute for Materials Chemistry and Engineering
- Kyushu University
- Nishi-ku, Japan
| | - Atsushi Maruyama
- Department of Biomolecular Engineering
- Tokyo Institute of Technology
- Yokohama 226-8501, Japan
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42
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Kidoaki S, Sakashita H. Rectified cell migration on saw-like micro-elastically patterned hydrogels with asymmetric gradient ratchet teeth. PLoS One 2013; 8:e78067. [PMID: 24147112 PMCID: PMC3798417 DOI: 10.1371/journal.pone.0078067] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2013] [Accepted: 09/06/2013] [Indexed: 11/29/2022] Open
Abstract
To control cell motility is one of the essential technologies for biomedical engineering. To establish a methodology of the surface design of elastic substrate to control the long-range cell movements, here we report a sophisticated cell culture hydrogel with a micro-elastically patterned surface that allows long-range durotaxis. This hydrogel has a saw-like pattern with asymmetric gradient ratchet teeth, and rectifies random cell movements. Durotaxis only occurs at boundaries in which the gradient strength of elasticity is above a threshold level. Consequently, in gels with unit teeth patterns, durotaxis should only occur at the sides of the teeth in which the gradient strength of elasticity is above this threshold level. Therefore, such gels are expected to support the long-range biased movement of cells via a mechanism similar to the Feynman-Smoluchowski ratchet, i.e., rectified cell migration. The present study verifies this working hypothesis by using photolithographic microelasticity patterning of photocurable gelatin gels. Gels in which each teeth unit was 100–120 µm wide with a ratio of ascending:descending elasticity gradient of 1:2 and a peak elasticity of ca. 100 kPa supported the efficient rectified migration of 3T3 fibroblast cells. In addition, long-range cell migration was most efficient when soft lanes were introduced perpendicular to the saw-like patterns. This study demonstrates that asymmetric elasticity gradient patterning of cell culture gels is a versatile means of manipulating cell motility.
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Affiliation(s)
- Satoru Kidoaki
- Research Field of Biomedical and Biophysical Chemistry, Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka, Japan
- * E-mail:
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43
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Roca-Cusachs P, Sunyer R, Trepat X. Mechanical guidance of cell migration: lessons from chemotaxis. Curr Opin Cell Biol 2013; 25:543-9. [DOI: 10.1016/j.ceb.2013.04.010] [Citation(s) in RCA: 91] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Accepted: 04/26/2013] [Indexed: 01/04/2023]
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Monge C, Saha N, Boudou T, Pózos-Vásquez C, Dulong V, Glinel K, Picart C. Rigidity-patterned polyelectrolyte films to control myoblast cell adhesion and spatial organization. ADVANCED FUNCTIONAL MATERIALS 2013; 23:3432-3442. [PMID: 25100929 PMCID: PMC4119880 DOI: 10.1002/adfm.201203580] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
In vivo, cells are sensitive to the stiffness of their micro-environment and especially to the spatial organization of the stiffness. In vitro studies of this phenomenon can help to better understand the mechanisms of the cell response to spatial variations of the matrix stiffness. In this work, we design polelyelectrolyte multilayer films made of poly(L-lysine) and a photo-reactive hyaluronan derivative. These films can be photo-crosslinked through a photomask to create spatial patterns of rigidity. Quartz substrates incorporating a chromium mask are prepared to expose selectively the film to UV light (in a physiological buffer), without any direct contact between the photomask and the soft film. We show that these micropatterns are chemically homogeneous and flat, without any preferential adsorption of adhesive proteins. Three groups of pattern geometries differing by their shape (circles or lines), size (form 2 to 100 μm) or interspacing distance between the motifs are used to study the adhesion and spatial organization of myoblast cells. On large circular micropatterns, the cells form large assemblies that are confined to the stiffest parts. Conversely, when the size of the rigidity patterns is subcellular, the cells respond by forming protrusions. Finally, on linear micropatterns of rigidity, myoblasts align and their nuclei drastically elongate in specific conditions. These results pave the way for the study of the different steps of myoblast fusion in response to matrix rigidity in well-defined geometrical conditions.
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Affiliation(s)
- Claire Monge
- CNRS-UMR 5628, Laboratoire des Matériaux et du Génie Physique, CNRS et Institut Polytechnique de Grenoble, Université de Grenoble, 3 parvis L. Néel F-38016 Grenoble, France
| | - Naresh Saha
- CNRS-UMR 5628, Laboratoire des Matériaux et du Génie Physique, CNRS et Institut Polytechnique de Grenoble, Université de Grenoble, 3 parvis L. Néel F-38016 Grenoble, France; Institute of Condensed Matter & Nanosciences, Bio & Soft Matter division Croix du Sud 1, box L7.04.02 B-1348 Louvain-la-Neuve, Belgium
| | - Thomas Boudou
- CNRS-UMR 5628, Laboratoire des Matériaux et du Génie Physique, CNRS et Institut Polytechnique de Grenoble, Université de Grenoble, 3 parvis L. Néel F-38016 Grenoble, France
| | - Cuauhtemoc Pózos-Vásquez
- Institute of Condensed Matter & Nanosciences, Bio & Soft Matter division Croix du Sud 1, box L7.04.02 B-1348 Louvain-la-Neuve, Belgium
| | - Virginie Dulong
- Laboratoire Polymères, Biopolymères, Surfaces, CNRS-UMR 6270 Université de Rouen Bd Maurice de Broglie F-76821 Mont Saint Aignan, France
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Ricca BL, Venugopalan G, Fletcher DA. To pull or be pulled: parsing the multiple modes of mechanotransduction. Curr Opin Cell Biol 2013; 25:558-64. [PMID: 23830123 DOI: 10.1016/j.ceb.2013.06.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2013] [Accepted: 06/09/2013] [Indexed: 01/16/2023]
Abstract
A cell embedded in a multicellular organism will experience a wide range of mechanical stimuli over the course of its life. Fluid flows and neighboring cells actively exert stresses on the cell, while the cell's environment presents a set of passive mechanical properties that constrain its physical behavior. Cells respond to these varied mechanical cues through biological responses that regulate activities such as differentiation, morphogenesis, and proliferation, as well as material responses involving compression, stretching, and relaxation. Here, we break down recent studies of mechanotransduction on the basis of the input mechanical stimuli acting upon the cell and the output response of the cell. This framework provides a useful starting point for identifying overlaps in molecular players and sensing modalities, and it highlights how different timescales involved in biological and material responses to mechanical inputs could serve as a means for filtering important mechanical signals from noise.
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Affiliation(s)
- Benjamin L Ricca
- Department of Bioengineering and Biophysics Program, University of California, Berkeley, 648 Stanley Hall, Berkeley, CA 94720, USA
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46
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Tsugiyama H, Okimura C, Mizuno T, Iwadate Y. Electroporation of adherent cells with low sample volumes on a microscope stage. ACTA ACUST UNITED AC 2013; 216:3591-8. [PMID: 23788710 DOI: 10.1242/jeb.089870] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The labeling of specific molecules and their artificial control in living cells are powerful techniques for investigating intracellular molecular dynamics. To use these techniques, molecular compounds (hereinafter described simply as 'samples') need to be loaded into cells. Electroporation techniques are exploited to load membrane-impermeant samples into cells. Here, we developed a new electroporator with four special characteristics. (1) Electric pulses are applied to the adherent cells directly, without removing them from the substratum. (2) Samples can be loaded into the adherent cells while observing them on the stage of an inverted microscope. (3) Only 2 μl of sample solution is sufficient. (4) The device is very easy to use, as the cuvette, which is connected to the tip of a commercially available auto-pipette, is manipulated by hand. Using our device, we loaded a fluorescent probe of actin filaments, Alexa Fluor 546 phalloidin, into migrating keratocytes. The level of this probe in the cells could be easily adjusted by changing its concentration in the electroporation medium. Samples could be loaded into keratocytes, neutrophil-like HL-60 cells and Dictyostelium cells on a coverslip, and keratocytes on an elastic silicone substratum. The new device should be useful for a wide range of adherent cells and allow electroporation for cells on various types of the substrata.
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Affiliation(s)
- Harunobu Tsugiyama
- Department of Functional Molecular Biology, Graduate School of Medicine, Yamaguchi University, Yamaguchi 753-8512, Japan
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Yoshikawa HY, Kawano T, Matsuda T, Kidoaki S, Tanaka M. Morphology and Adhesion Strength of Myoblast Cells on Photocurable Gelatin under Native and Non-native Micromechanical Environments. J Phys Chem B 2013; 117:4081-8. [DOI: 10.1021/jp4008224] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hiroshi Y. Yoshikawa
- Physical Chemistry of Biosystems,
Institute of Physical Chemistry, University of Heidelberg, Heidelberg 69120, Germany
- Department of Chemistry, Saitama University, Saitama 338-8570, Japan
| | - Takahito Kawano
- Division of Biomolecular Chemistry,
Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Takehisa Matsuda
- Genome Biotechnology Laboratory, Kanazawa Institute of Technology, Ishikawa 924-0838,
Japan
| | - Satoru Kidoaki
- Division of Biomolecular Chemistry,
Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Motomu Tanaka
- Physical Chemistry of Biosystems,
Institute of Physical Chemistry, University of Heidelberg, Heidelberg 69120, Germany
- Institute for Integrated
Cell-Material
Sciences (WPI iCeMS), Kyoto University,
606-8501, Kyoto, Japan
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48
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Kawano T, Nakamichi Y, Fujinami S, Nakajima K, Yabu H, Shimomura M. Mechanical regulation of cellular adhesion onto honeycomb-patterned porous scaffolds by altering the elasticity of material surfaces. Biomacromolecules 2013; 14:1208-13. [PMID: 23510479 DOI: 10.1021/bm400202d] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
In this report, we show the preparation of honeycomb scaffolds for cell culturing by using "breath figure" method, and we found that their mechanical and topographical properties strongly affect the adhesion of fibroblasts. By photo-cross-linking of the poly(1,2-butadiene), the hardness of the honeycomb scaffold can be successfully controlled without any surface chemical changes, and detail modulus values of scaffolds were measured by atomic force microscopy. We found that only small numbers of the cells adhered on the softer honeycomb scaffolds, which has even higher modulus value than conventional gels, comparing with flat films and a hard honeycomb scaffold. These results indicate that the elastomeric honeycomb substrates are useful for evaluating the effect of the mechanical signal-derived geometry on the transduction system of cells.
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Affiliation(s)
- Takahito Kawano
- WPI-Advanced Institute for Materials Research, Tohoku University , 2-1-1, Katahira, Sendai, 980-8577, Japan
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49
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Sunyer R, Jin AJ, Nossal R, Sackett DL. Fabrication of hydrogels with steep stiffness gradients for studying cell mechanical response. PLoS One 2012; 7:e46107. [PMID: 23056241 PMCID: PMC3464269 DOI: 10.1371/journal.pone.0046107] [Citation(s) in RCA: 144] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2012] [Accepted: 08/28/2012] [Indexed: 11/19/2022] Open
Abstract
Many fundamental cell processes, such as angiogenesis, neurogenesis and cancer metastasis, are thought to be modulated by extracellular matrix stiffness. Thus, the availability of matrix substrates having well-defined stiffness profiles can be of great importance in biophysical studies of cell-substrate interaction. Here, we present a method to fabricate biocompatible hydrogels with a well defined and linear stiffness gradient. This method, involving the photopolymerization of films by progressively uncovering an acrylamide/bis-acrylamide solution initially covered with an opaque mask, can be easily implemented with common lab equipment. It produces linear stiffness gradients of at least 115 kPa/mm, extending from ∼1 kPa to 240 kPa (in units of Young's modulus). Hydrogels with less steep gradients and narrower stiffness ranges can easily be produced. The hydrogels can be covalently functionalized with uniform coatings of proteins that promote cell adhesion. Cell spreading on these hydrogels linearly correlates with hydrogel stiffness, indicating that this technique effectively modifies the mechanical environment of living cells. This technique provides a simple approach that produces steeper gradients, wider rigidity ranges, and more accurate profiles than current methods.
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Affiliation(s)
- Raimon Sunyer
- Program in Physical Biology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, United States of America.
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50
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Hörning M, Kidoaki S, Kawano T, Yoshikawa K. Rigidity matching between cells and the extracellular matrix leads to the stabilization of cardiac conduction. Biophys J 2012; 102:379-87. [PMID: 22325259 PMCID: PMC3274804 DOI: 10.1016/j.bpj.2011.12.018] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2011] [Revised: 12/04/2011] [Accepted: 12/12/2011] [Indexed: 11/15/2022] Open
Abstract
Biomechanical dynamic interactions between cells and the extracellular environment dynamically regulate physiological tissue behavior in living organisms, such as that seen in tissue maintenance and remodeling. In this study, the substrate-induced modulation of synchronized beating in cultured cardiomyocyte tissue was systematically characterized on elasticity-tunable substrates to elucidate the effect of biomechanical coupling. We found that myocardial conduction is significantly promoted when the rigidity of the cell culture environment matches that of the cardiac cells (4 kiloPascals). The stability of spontaneous target wave activity and calcium transient alternans in high frequency-paced tissue were both enhanced when the cell substrate and cell tissue showed the same rigidity. By adapting a simple theoretical model, we reproduced the experimental trend on the rigidity matching for the synchronized excitation. We conclude that rigidity matching in cell-to-substrate interactions critically improves cardiomyocyte-tissue synchronization, suggesting that mechanical coupling plays an essential role in the dynamic activity of the beating heart.
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Affiliation(s)
- Marcel Hörning
- Department of Physics, Graduate School of Science, Kyoto University, Japan
| | - Satoru Kidoaki
- Division of Biomolecular Chemistry, Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka, Japan
| | - Takahito Kawano
- Division of Biomolecular Chemistry, Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka, Japan
| | - Kenichi Yoshikawa
- Department of Physics, Graduate School of Science, Kyoto University, Japan
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