1
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Somasekhar L, Griffiths LG. Current Challenges and Future Promise for Use of Extracellular Matrix Scaffold to Achieve the Whole Organ Tissue Engineering Moonshot. Stem Cells Transl Med 2023; 12:588-602. [PMID: 37589543 PMCID: PMC10502576 DOI: 10.1093/stcltm/szad046] [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: 02/16/2023] [Accepted: 07/13/2023] [Indexed: 08/18/2023] Open
Abstract
Whole organ tissue engineering encompasses a variety of approaches, including 3D printed tissues, cell-based self-assembly, and cellular incorporation into synthetic or xenogeneic extracellular matrix (ECM) scaffolds. This review article addresses the importance of whole organ tissue engineering for various solid organ applications, focusing on the use of extracellular (ECM) matrix scaffolds in such engineering endeavors. In this work, we focus on the emerging barriers to translation of ECM scaffold-based tissue-engineered organs and highlight potential solutions to overcome the primary challenges in the field. The 3 main factors that are essential for developing ECM scaffold-based whole organs are (1) recapitulation of a functional vascular tree, (2) delivery and orientation of cells into parenchymal void spaces left vacant in the scaffold during the antigen elimination and associated cellular removal processes, and (3) driving differentiation of delivered cells toward the appropriate site-specific lineage. The insights discussed in this review will allow the potential of allogeneic or xenogeneic ECM scaffolds to be fully maximized for future whole organ tissue-engineering efforts.
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Affiliation(s)
| | - Leigh G Griffiths
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN, USA
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2
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Xu H, Huo Y, Zhou Q, Wang LA, Cai P, Doss B, Huang C, Hsia KJ. Geometry-mediated bridging drives nonadhesive stripe wound healing. Proc Natl Acad Sci U S A 2023; 120:e2221040120. [PMID: 37098071 PMCID: PMC10161107 DOI: 10.1073/pnas.2221040120] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 03/14/2023] [Indexed: 04/26/2023] Open
Abstract
Wound healing through reepithelialization of gaps is of profound importance to the medical community. One critical mechanism identified by researchers for closing non-cell-adhesive gaps is the accumulation of actin cables around concave edges and the resulting purse-string constriction. However, the studies to date have not separated the gap-edge curvature effect from the gap size effect. Here, we fabricate micropatterned hydrogel substrates with long, straight, and wavy non-cell-adhesive stripes of different gap widths to investigate the stripe edge curvature and stripe width effects on the reepithelialization of Madin-Darby canine kidney (MDCK) cells. Our results show that MDCK cell reepithelization is closely regulated by the gap geometry and may occur through different pathways. In addition to purse-string contraction, we identify gap bridging either via cell protrusion or by lamellipodium extension as critical cellular and molecular mechanisms for wavy gap closure. Cell migration in the direction perpendicular to wound front, sufficiently small gap size to allow bridging, and sufficiently high negative curvature at cell bridges for actin cable constriction are necessary/sufficient conditions for gap closure. Our experiments demonstrate that straight stripes rarely induce cell migration perpendicular to wound front, but wavy stripes do; cell protrusion and lamellipodia extension can help establish bridges over gaps of about five times the cell size, but not significantly beyond. Such discoveries deepen our understanding of mechanobiology of cell responses to curvature and help guide development of biophysical strategies for tissue repair, plastic surgery, and better wound management.
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Affiliation(s)
- Hongmei Xu
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore639798, Singapore
| | - Yucheng Huo
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore639798, Singapore
| | - Quan Zhou
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore639798, Singapore
| | - Lianghao Abraham Wang
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore639798, Singapore
| | - Pingqiang Cai
- Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing211166, PR China
| | - Bryant Doss
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore639798, Singapore
| | - Changjin Huang
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore639798, Singapore
| | - K. Jimmy Hsia
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore639798, Singapore
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore639798, Singapore
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3
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Ali MA, Volmert B, Evans CM, Braun PV. Static and Dynamic Gradient Based Directional Transportation of Neutral Molecules in Swollen Polymer Films. Angew Chem Int Ed Engl 2022; 61:e202206061. [PMID: 36031709 PMCID: PMC9826203 DOI: 10.1002/anie.202206061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Indexed: 01/11/2023]
Abstract
Materials which selectively transport molecules offer powerful opportunities for concentrating and separating chemical agents. Here, utilizing static and dynamic chemical gradients, transport of molecules within swollen crosslinked polymers is demonstrated. Using an ≈200 μm static hydroxyl to hexyl gradient, the neutral ambipolar nerve agent surrogate diethyl (cyanomethyl)phosphonate (DECP) is directionally transported and concentrated 60-fold within 4 hours. To accelerate transport kinetics, a dynamic gradient (a "travelling wave") is utilized. Here, the non-polar dye pyrene was transported. The dynamic gradient is generated by an ion exchange process triggered by the localized introduction of an aqueous NaCl solution, which converts the gel from hydrophobic to hydrophilic. As the hydrophilic region expands, associated water enters the gel, and pyrene is pushed ahead of the expansion front. The dynamic gradient provides about 10-fold faster transport kinetics than the static gradient.
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Affiliation(s)
- Mohammad A. Ali
- Department of Materials Science and EngineeringDepartment of ChemistryBeckman Institute for Advanced Science and Technology, and Materials Research LaboratoryUniversity of Illinois Urbana ChampaignUrbanaIllinois 61801USA
| | - Brett Volmert
- Department of Materials Science and EngineeringDepartment of ChemistryBeckman Institute for Advanced Science and Technology, and Materials Research LaboratoryUniversity of Illinois Urbana ChampaignUrbanaIllinois 61801USA
| | - Christopher M. Evans
- Department of Materials Science and EngineeringDepartment of ChemistryBeckman Institute for Advanced Science and Technology, and Materials Research LaboratoryUniversity of Illinois Urbana ChampaignUrbanaIllinois 61801USA
| | - Paul V. Braun
- Department of Materials Science and EngineeringDepartment of ChemistryBeckman Institute for Advanced Science and Technology, and Materials Research LaboratoryUniversity of Illinois Urbana ChampaignUrbanaIllinois 61801USA
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4
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Ali MA, Volmert B, Evans CM, Braun PV. Static and Dynamic Gradient Based Directional Transportation of Neutral Molecules in Swollen Polymer Films. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202206061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Mohammad A Ali
- University of Illinois Urbana-Champaign Materials Research Laboratory UNITED STATES
| | - Brett Volmert
- University of Illinois Urbana-Champaign Materials Science and Engineering UNITED STATES
| | - Christopher M Evans
- University of Illinois Urbana-Champaign Materials Science and Engineering UNITED STATES
| | - Paul V. Braun
- University of Illinois Urbana-Champaign Department of Materials Science and Engineering Materials Science and Engineering 1304 West Green St.Materials Science and Eng. Building 61801 Urbana UNITED STATES
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5
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Ayama-Canden S, Tondo R, Piñeros L, Ninane N, Demazy C, Dieu M, Fattaccioli A, Tabarrant T, Lucas S, Bonifazi D, Michiels C. IGDQ motogenic peptide gradient induces directional cell migration through integrin (αv)β3 activation in MDA-MB-231 metastatic breast cancer cells. Neoplasia 2022; 31:100816. [PMID: 35763908 PMCID: PMC9241093 DOI: 10.1016/j.neo.2022.100816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Revised: 06/08/2022] [Accepted: 06/13/2022] [Indexed: 11/02/2022] Open
Abstract
In the context of breast cancer metastasis study, we have shown in an in vitro model of cell migration that IGDQ-exposing (IsoLeu-Gly-Asp-Glutamine type I Fibronectin motif) monolayers (SAMs) on gold sustain the adhesion of breast cancer MDA-MB-231 cells by triggering Focal Adhesion Kinase and integrin activation. Such tunable scaffolds are used to mimic the tumor extracellular environment, inducing and controlling cell migration. The observed migratory behavior induced by the IGDQ-bearing peptide gradient along the surface allows to separate cell subpopulations with a "stationary" or "migratory" phenotype. In this work, we knocked down the integrins α5(β1) and (αv)β since they are already known to be implicated in cell migration. To this aim, a whole proteomic analysis was performed in beta 3 integrin (ITGB3) or alpha 5 integrin (ITGA5) knock-down MDA-MB-231 cells, in order to highlight the pathways implied in the integrin-dependent cell migration. Our results showed that i) ITGB3 depletion influenced ITGA5 mRNA expression, ii) ITGB3 and ITGA5 were both necessary for IGDQ-mediated directional single cell migration and iii) integrin (αv)β3 was activated by IGDQ fibronectin type I motif. Finally, the proteomic analysis suggested that co-regulation of recycling transport of ITGB3 by ITGA5 is potentially necessary for directional IGDQ-mediated cell migration.
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Affiliation(s)
- Sophie Ayama-Canden
- URBC - NARILIS, University of Namur, rue de Bruxelles 61, 5000 Namur, Belgium
| | - Rodolfo Tondo
- School of Chemistry, Cardiff University, Park Place, Main Building, CF10 3AT, Cardiff, Wales, United Kingdom
| | - Liliana Piñeros
- URBC - NARILIS, University of Namur, rue de Bruxelles 61, 5000 Namur, Belgium
| | - Noëlle Ninane
- URBC - NARILIS, University of Namur, rue de Bruxelles 61, 5000 Namur, Belgium
| | - Catherine Demazy
- URBC - NARILIS, University of Namur, rue de Bruxelles 61, 5000 Namur, Belgium
| | - Marc Dieu
- MaSUN, Mass Spectrometry Facility, University of Namur, 61, rue de Bruxelles, 5000 Namur, Belgium
| | - Antoine Fattaccioli
- URBC - NARILIS, University of Namur, rue de Bruxelles 61, 5000 Namur, Belgium
| | - Tijani Tabarrant
- LARN - NARILIS, University of Namur, rue de Bruxelles 61, 5000 Namur, Belgium
| | - Stéphane Lucas
- LARN - NARILIS, University of Namur, rue de Bruxelles 61, 5000 Namur, Belgium
| | - Davide Bonifazi
- School of Chemistry, Cardiff University, Park Place, Main Building, CF10 3AT, Cardiff, Wales, United Kingdom; Institute of Organic Chemistry, University of Vienna, Währinger Str. 38, 1090 Vienna, Austria
| | - Carine Michiels
- URBC - NARILIS, University of Namur, rue de Bruxelles 61, 5000 Namur, Belgium.
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6
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Laranjeira S, Pellegrino G, Bhangra KS, Phillips JB, Shipley RJ. In silico framework to inform the design of repair constructs for peripheral nerve injury repair. J R Soc Interface 2022; 19:20210824. [PMID: 35232275 PMCID: PMC8889181 DOI: 10.1098/rsif.2021.0824] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Peripheral nerve injuries affect millions of people per year and cause loss of sensation and muscle control alongside chronic pain. The most severe injuries are treated through a nerve autograft; however, donor site morbidity and poor outcomes mean alternatives are required. One option is to engineer nerve replacement tissues to provide a supportive microenvironment to encourage nerve regeneration as an alternative to nerve grafts. Currently, progress is hampered due to a lack of consensus on how to arrange materials and cells in space to maximize rate of regeneration. This is compounded by a reliance on experimental testing, which precludes extensive investigations of multiple parameters due to time and cost limitations. Here, a computational framework is proposed to simulate the growth of repairing neurites, captured using a random walk approach and parameterized against literature data. The framework is applied to a specific scenario where the engineered tissue comprises a collagen hydrogel with embedded biomaterial fibres. The size and number of fibres are optimized to maximize neurite regrowth, and the robustness of model predictions is tested through sensitivity analyses. The approach provides an in silico tool to inform the design of engineered replacement tissues, with the opportunity for further development to multi-cue environments.
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Affiliation(s)
- S. Laranjeira
- UCL Mechanical Engineering, London, UK,UCL Centre for Nerve Engineering, UK
| | | | - K. S. Bhangra
- Department of Pharmacology, UCL School of Pharmacy, London, UK,UCL Centre for Nerve Engineering, UK
| | - J. B. Phillips
- Department of Pharmacology, UCL School of Pharmacy, London, UK,UCL Centre for Nerve Engineering, UK
| | - R. J. Shipley
- UCL Mechanical Engineering, London, UK,UCL Centre for Nerve Engineering, UK
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7
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Yang L, Pijuan-Galito S, Rho HS, Vasilevich AS, Eren AD, Ge L, Habibović P, Alexander MR, de Boer J, Carlier A, van Rijn P, Zhou Q. High-Throughput Methods in the Discovery and Study of Biomaterials and Materiobiology. Chem Rev 2021; 121:4561-4677. [PMID: 33705116 PMCID: PMC8154331 DOI: 10.1021/acs.chemrev.0c00752] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Indexed: 02/07/2023]
Abstract
The complex interaction of cells with biomaterials (i.e., materiobiology) plays an increasingly pivotal role in the development of novel implants, biomedical devices, and tissue engineering scaffolds to treat diseases, aid in the restoration of bodily functions, construct healthy tissues, or regenerate diseased ones. However, the conventional approaches are incapable of screening the huge amount of potential material parameter combinations to identify the optimal cell responses and involve a combination of serendipity and many series of trial-and-error experiments. For advanced tissue engineering and regenerative medicine, highly efficient and complex bioanalysis platforms are expected to explore the complex interaction of cells with biomaterials using combinatorial approaches that offer desired complex microenvironments during healing, development, and homeostasis. In this review, we first introduce materiobiology and its high-throughput screening (HTS). Then we present an in-depth of the recent progress of 2D/3D HTS platforms (i.e., gradient and microarray) in the principle, preparation, screening for materiobiology, and combination with other advanced technologies. The Compendium for Biomaterial Transcriptomics and high content imaging, computational simulations, and their translation toward commercial and clinical uses are highlighted. In the final section, current challenges and future perspectives are discussed. High-throughput experimentation within the field of materiobiology enables the elucidation of the relationships between biomaterial properties and biological behavior and thereby serves as a potential tool for accelerating the development of high-performance biomaterials.
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Affiliation(s)
- Liangliang Yang
- University
of Groningen, W. J. Kolff Institute for Biomedical Engineering and
Materials Science, Department of Biomedical Engineering, University Medical Center Groningen, A. Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Sara Pijuan-Galito
- School
of Pharmacy, Biodiscovery Institute, University
of Nottingham, University Park, Nottingham NG7 2RD, U.K.
| | - Hoon Suk Rho
- Department
of Instructive Biomaterials Engineering, MERLN Institute for Technology-Inspired
Regenerative Medicine, Maastricht University, 6229 ER Maastricht, The Netherlands
| | - Aliaksei S. Vasilevich
- Department
of Biomedical Engineering, Eindhoven University
of Technology, 5600 MB Eindhoven, The Netherlands
| | - Aysegul Dede Eren
- Department
of Biomedical Engineering, Eindhoven University
of Technology, 5600 MB Eindhoven, The Netherlands
| | - Lu Ge
- University
of Groningen, W. J. Kolff Institute for Biomedical Engineering and
Materials Science, Department of Biomedical Engineering, University Medical Center Groningen, A. Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Pamela Habibović
- Department
of Instructive Biomaterials Engineering, MERLN Institute for Technology-Inspired
Regenerative Medicine, Maastricht University, 6229 ER Maastricht, The Netherlands
| | - Morgan R. Alexander
- School
of Pharmacy, Boots Science Building, University
of Nottingham, University Park, Nottingham NG7 2RD, U.K.
| | - Jan de Boer
- Department
of Biomedical Engineering, Eindhoven University
of Technology, 5600 MB Eindhoven, The Netherlands
| | - Aurélie Carlier
- Department
of Cell Biology-Inspired Tissue Engineering, MERLN Institute for Technology-Inspired
Regenerative Medicine, Maastricht University, 6229 ER Maastricht, The Netherlands
| | - Patrick van Rijn
- University
of Groningen, W. J. Kolff Institute for Biomedical Engineering and
Materials Science, Department of Biomedical Engineering, University Medical Center Groningen, A. Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Qihui Zhou
- Institute
for Translational Medicine, Department of Stomatology, The Affiliated
Hospital of Qingdao University, Qingdao
University, Qingdao 266003, China
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8
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He YJ, Santana MF, Staneviciute A, Pimentel MB, Yang F, Goes J, Kawaji K, Vaicik MK, Abdulhadi R, Hibino N, Papavasiliou G. Cell-Laden Gradient Hydrogel Scaffolds for Neovascularization of Engineered Tissues. Adv Healthc Mater 2021; 10:e2001706. [PMID: 33511790 PMCID: PMC8035317 DOI: 10.1002/adhm.202001706] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 12/16/2020] [Indexed: 12/26/2022]
Abstract
Gradients in mechanical properties, physical architecture and biochemical composition exist in a variety of complex tissues, yet 3D in vitro models that enable investigation of these cues on cellular processes, especially those contributing to vascularization of engineered tissues are limited. Here, a photopolymerization approach to create cell-laden hydrogel biomaterials with decoupled and combined gradients in modulus, immobilized cell adhesive peptide (RGD) concentration, and proteolytic degradation enabling spatial encapsulation of vascular spheroids is reported to elucidate their impact on vascular sprouting in 3D culture. Vascular spheroids encapsulated in these gradient scaffolds exhibit spatial variations in total sprout length. Scaffolds presenting an immobilized RGD gradient promote biased vascular sprouting toward increasing RGD concentration. Importantly, biased sprouting is found to be dependent on immobilized RGD gradient characteristics, including magnitude and slope, with increases in these factors contributing to significant enhancements in biased sprouting responses. Conversely, reduction in biased sprouting responses is observed in combined gradient scaffolds possessing opposing gradients in RGD and modulus. The presented work is the first to demonstrate the use of a cell-laden biomaterial platform to systematically investigate the role of multiple scaffold gradients as well as gradient slope, magnitude and orientation on vascular sprouting responses in 3D culture.
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Affiliation(s)
- Yusheng J He
- Department of Surgery, University of Chicago, 5841 S Maryland Ave, Suit E500, Chicago, IL, 60637, USA
| | - Martin F Santana
- Department of Biomedical Engineering, Illinois Institute of Technology, 3255 South Dearborn Street, Suite 314, Chicago, IL, 60616, USA
| | - Austeja Staneviciute
- Department of Biomedical Engineering, Illinois Institute of Technology, 3255 South Dearborn Street, Suite 314, Chicago, IL, 60616, USA
| | - Marja B Pimentel
- Department of Biomedical Engineering, Illinois Institute of Technology, 3255 South Dearborn Street, Suite 314, Chicago, IL, 60616, USA
| | - Feipeng Yang
- Department of Biomedical Engineering, Illinois Institute of Technology, 3255 South Dearborn Street, Suite 314, Chicago, IL, 60616, USA
| | - Jacob Goes
- Department of Biomedical Engineering, Illinois Institute of Technology, 3255 South Dearborn Street, Suite 314, Chicago, IL, 60616, USA
| | - Keigo Kawaji
- Department of Biomedical Engineering, Illinois Institute of Technology, 3255 South Dearborn Street, Suite 314, Chicago, IL, 60616, USA
| | - Marcella K Vaicik
- Department of Biomedical Engineering, Illinois Institute of Technology, 3255 South Dearborn Street, Suite 314, Chicago, IL, 60616, USA
| | - Rayan Abdulhadi
- Department of Biomedical Engineering, Illinois Institute of Technology, 3255 South Dearborn Street, Suite 314, Chicago, IL, 60616, USA
| | - Narutoshi Hibino
- Department of Surgery, University of Chicago, 5841 S Maryland Ave, Suit E500, Chicago, IL, 60637, USA
| | - Georgia Papavasiliou
- Department of Biomedical Engineering, Illinois Institute of Technology, 3255 South Dearborn Street, Suite 314, Chicago, IL, 60616, USA
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9
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Andreuzzi E, Capuano A, Poletto E, Pivetta E, Fejza A, Favero A, Doliana R, Cannizzaro R, Spessotto P, Mongiat M. Role of Extracellular Matrix in Gastrointestinal Cancer-Associated Angiogenesis. Int J Mol Sci 2020; 21:E3686. [PMID: 32456248 PMCID: PMC7279269 DOI: 10.3390/ijms21103686] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 05/20/2020] [Accepted: 05/21/2020] [Indexed: 02/07/2023] Open
Abstract
Gastrointestinal tumors are responsible for more cancer-related fatalities than any other type of tumors, and colorectal and gastric malignancies account for a large part of these diseases. Thus, there is an urgent need to develop new therapeutic approaches to improve the patients' outcome and the tumor microenvironment is a promising arena for the development of such treatments. In fact, the nature of the microenvironment in the different gastrointestinal tracts may significantly influence not only tumor development but also the therapy response. In particular, an important microenvironmental component and a potential therapeutic target is the vasculature. In this context, the extracellular matrix is a key component exerting an active effect in all the hallmarks of cancer, including angiogenesis. Here, we summarized the current knowledge on the role of extracellular matrix in affecting endothelial cell function and intratumoral vascularization in the context of colorectal and gastric cancer. The extracellular matrix acts both directly on endothelial cells and indirectly through its remodeling and the consequent release of growth factors. We envision that a deeper understanding of the role of extracellular matrix and of its remodeling during cancer progression is of chief importance for the development of new, more efficacious, targeted therapies.
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Affiliation(s)
- Eva Andreuzzi
- Department of Research and Diagnosis, Division of Molecular Oncology, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, 33081 Aviano, Italy; (E.A.); (A.C.); (E.P.); (E.P.); (A.F.); (A.F.); (R.D.); (P.S.)
| | - Alessandra Capuano
- Department of Research and Diagnosis, Division of Molecular Oncology, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, 33081 Aviano, Italy; (E.A.); (A.C.); (E.P.); (E.P.); (A.F.); (A.F.); (R.D.); (P.S.)
| | - Evelina Poletto
- Department of Research and Diagnosis, Division of Molecular Oncology, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, 33081 Aviano, Italy; (E.A.); (A.C.); (E.P.); (E.P.); (A.F.); (A.F.); (R.D.); (P.S.)
| | - Eliana Pivetta
- Department of Research and Diagnosis, Division of Molecular Oncology, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, 33081 Aviano, Italy; (E.A.); (A.C.); (E.P.); (E.P.); (A.F.); (A.F.); (R.D.); (P.S.)
| | - Albina Fejza
- Department of Research and Diagnosis, Division of Molecular Oncology, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, 33081 Aviano, Italy; (E.A.); (A.C.); (E.P.); (E.P.); (A.F.); (A.F.); (R.D.); (P.S.)
| | - Andrea Favero
- Department of Research and Diagnosis, Division of Molecular Oncology, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, 33081 Aviano, Italy; (E.A.); (A.C.); (E.P.); (E.P.); (A.F.); (A.F.); (R.D.); (P.S.)
| | - Roberto Doliana
- Department of Research and Diagnosis, Division of Molecular Oncology, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, 33081 Aviano, Italy; (E.A.); (A.C.); (E.P.); (E.P.); (A.F.); (A.F.); (R.D.); (P.S.)
| | - Renato Cannizzaro
- Department of Clinical Oncology, Experimental Gastrointestinal Oncology, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, 33081 Aviano, Italy;
| | - Paola Spessotto
- Department of Research and Diagnosis, Division of Molecular Oncology, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, 33081 Aviano, Italy; (E.A.); (A.C.); (E.P.); (E.P.); (A.F.); (A.F.); (R.D.); (P.S.)
| | - Maurizio Mongiat
- Department of Research and Diagnosis, Division of Molecular Oncology, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, 33081 Aviano, Italy; (E.A.); (A.C.); (E.P.); (E.P.); (A.F.); (A.F.); (R.D.); (P.S.)
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10
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Ko Y, Christau S, von Klitzing R, Genzer J. Charge Density Gradients of Polymer Thin Film by Gaseous Phase Quaternization. ACS Macro Lett 2020; 9:158-162. [PMID: 35638676 DOI: 10.1021/acsmacrolett.9b00930] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report on the rapid formation of charge density gradients in polymer films by exposing poly([2-dimethylaminoethyl] methacrylate) (PDMAEMA) films resting on flat silica substrates to methyl iodide (i.e., MI, also known as iodomethane) vapors. We adjust the charge gradient by varying the MI concentration in solution and the process time. The thickness of the parent PDMAEMA film does not affect the diffusion of MI through and the reaction kinetics in the films. Instead, the diffusion of MI through the gaseous phase constitutes the limiting step in the overall process.
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Affiliation(s)
- Yeongun Ko
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27695-7905, United States
| | - Stephanie Christau
- Department of Chemical Engineering, Biointerfaces Institute, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Regine von Klitzing
- Department of Physics, Technische Universität Darmstadt, 64289 Darmstadt, Germany
| | - Jan Genzer
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27695-7905, United States.,Global Station for Soft Matter, Global Institution for Collaborative Research and Education Hokkaido University, Sapporo, 060-0808, Japan
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11
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Nakano T, Okaie Y, Kinugasa Y, Koujin T, Suda T, Hiraoka Y, Haraguchi T. Roles of Remote and Contact Forces in Epithelial Cell Structure Formation. Biophys J 2020; 118:1466-1478. [PMID: 32097624 PMCID: PMC7091513 DOI: 10.1016/j.bpj.2020.01.037] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 01/25/2020] [Accepted: 01/29/2020] [Indexed: 12/28/2022] Open
Abstract
Cancer cells collectively form a large-scale structure for their growth. In this article, we report that HeLa cells, epithelial-like human cervical cancer cells, aggressively migrate on Matrigel and form a large-scale structure in a cell-density-dependent manner. To explain the experimental results, we develop a simple model in which cells interact and migrate using the two fundamentally different types of force, remote and contact forces, and show how cells form a large-scale structure. We demonstrate that the simple model reproduces experimental observations, suggesting that the remote and contact forces considered in this work play a major role in large-scale structure formation of HeLa cells. This article provides important evidence that cancer cells form a large-scale structure and develops an understanding into the poorly understood mechanisms of their structure formation.
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Affiliation(s)
- Tadashi Nakano
- Institute for Datability Science, Osaka University, Suita, Japan.
| | - Yutaka Okaie
- Institute for Datability Science, Osaka University, Suita, Japan
| | - Yasuha Kinugasa
- Graduate School of Frontier Biosciences, Osaka University, Suita, Japan
| | - Takako Koujin
- Advanced ICT Research Institute Kobe, National Institute of Information and Communications Technology, Kobe, Japan
| | | | - Yasushi Hiraoka
- Graduate School of Frontier Biosciences, Osaka University, Suita, Japan; Advanced ICT Research Institute Kobe, National Institute of Information and Communications Technology, Kobe, Japan
| | - Tokuko Haraguchi
- Graduate School of Frontier Biosciences, Osaka University, Suita, Japan; Advanced ICT Research Institute Kobe, National Institute of Information and Communications Technology, Kobe, Japan
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12
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Luo X, Seveau de Noray V, Aoun L, Biarnes-Pelicot M, Strale PO, Studer V, Valignat MP, Theodoly O. Lymphocyte perform reverse adhesive haptotaxis mediated by integrins LFA-1. J Cell Sci 2020; 133:jcs.242883. [DOI: 10.1242/jcs.242883] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 07/13/2020] [Indexed: 01/10/2023] Open
Abstract
Cell Guidance by anchored molecules, or haptotaxis, is crucial in development, immunology and cancer. Adhesive haptotaxis, or guidance by adhesion molecules, is well established for mesenchymal cells like fibroblasts, whereas its existence remains unreported for amoeboid cells that require less or no adhesion to migrate. We show here in vitro that amoeboid human T lymphocytes develop adhesive haptotaxis versus densities of integrin ligands expressed by high endothelial venules. Moreover, lymphocytes orient towards increasing adhesion with VLA-4 integrins, like all mesenchymal cells, but towards decreasing adhesion with LFA-1 integrins, which has never been observed. This counterintuitive ‘reverse haptotaxis’ cannot be explained with the existing mesenchymal mechanisms of competition between cells’ pulling edges or of lamellipodia growth activated by integrins, which favor orientation towards increasing adhesion. Mechanisms and functions of amoeboid adhesive haptotaxis remain unclear, however multidirectional integrin-mediated haptotaxis may operate around transmigration ports on endothelium, stromal cells in lymph nodes, and inflamed tissue where integrin ligands are spatially modulated.
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Affiliation(s)
- Xuan Luo
- LAI, Aix Marseille Univ, CNRS, INSERM, Marseille, France
| | | | - Laurene Aoun
- LAI, Aix Marseille Univ, CNRS, INSERM, Marseille, France
| | | | | | - Vincent Studer
- University of Bordeaux, Interdisciplinary Institute for Neuroscience, Bordeaux, France
- CNRS UMR 5297, F-33000 Bordeaux, France
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13
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Engineered topographical structure to control spatial cell density using cell migration. Biomed Microdevices 2019; 21:98. [PMID: 31729612 DOI: 10.1007/s10544-019-0447-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Control of the spatial distribution of various cell types is required to construct functional tissues. Here, we report a simple topographical structure changed the spatial cell density. A concave curved boundary was designed, which allowed the spatial descent moving of cells and the change in spatial distributions of co-cultured cells. We utilized the difference in cell motility between myoblast cells (C2C12) and neuronal cells (PC12) to demonstrate the feasibility of spontaneous change in spatial cell density. Without the curved boundaries, high motility cells (C2C12) did not migrate to the adjacent area, which resulted in a slight temporal change (< 15%) in the spatial cell distribution. In contrast, with the curved boundaries, the cell density of the high motility cells in the groove to those cells on the ridge showed an increase exceeding 45%. On the other hand, the temporal change in the spatial cell distribution of low motility cells (PC12) was below 15% with or without the curved boundaries. In addition, as groove width increased, both cells displayed more initially gathering in groove. Importantly, these cell-type dependent results were also maintained under co-culture conditions. Our results suggest that designing topographical interfaces changes spatial cell density without any manipulation and is useful for multi-cellular constructs.
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14
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Cheng R, Zhang F, Li M, Wo X, Su YW, Wang W. Influence of Fixation and Permeabilization on the Mass Density of Single Cells: A Surface Plasmon Resonance Imaging Study. Front Chem 2019; 7:588. [PMID: 31508410 PMCID: PMC6716545 DOI: 10.3389/fchem.2019.00588] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 08/06/2019] [Indexed: 01/24/2023] Open
Abstract
Fixation and permeabilization of cells and tissues are essential processes in biological techniques like immunofluorescence and immunohistochemistry for cell biology studies. In typical procedures, the biological samples are treated by paraformaldehyde and Triton X-100 to achieve cellular fixation and permeabilization, respectively, prior to the incubation with specific antibodies. While it is well-known that the integrity of cell membrane has been broken during these processes, quantitative studies on the loss of cellular mass density and the enhancement of molecular accessibility at single cell level are still rare. In this study, we employed the surface plasmon resonance (SPR) imaging technique to monitor the mass density change of single cells during sequential fixation and permeabilization processes. We further utilize the osmotic responses of single cells to sugar molecules as an indicator to evaluate the integrity of cell membranes. It was found that, while fixation initially destructed the integrity of cell membranes and increased the permeability of intra- and extra-cellular molecules, it was permeabilization process that substantially induced significant loss in cellular mass density.
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Affiliation(s)
- Ruoyu Cheng
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China
| | - Feng Zhang
- Department of Monoclonal Antibody Products, National Institutes for Food and Drug Control, Beijing, China
| | - Meng Li
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China
| | - Xiang Wo
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China
| | - Yu-Wen Su
- School of Pharmacy, Nanjing Medical University, Nanjing, China
- Department of Clinical Pharmacology, Sir Run Run Hospital, Nanjing Medical University, Nanjing, China
| | - Wei Wang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China
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15
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Ford AJ, Rajagopalan P. Measuring Cytoplasmic Stiffness of Fibroblasts as a Function of Location and Substrate Rigidity Using Atomic Force Microscopy. ACS Biomater Sci Eng 2018; 4:3974-3982. [DOI: 10.1021/acsbiomaterials.8b01019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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16
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He YJ, Young DA, Mededovic M, Li K, Li C, Tichauer K, Venerus D, Papavasiliou G. Protease-Sensitive Hydrogel Biomaterials with Tunable Modulus and Adhesion Ligand Gradients for 3D Vascular Sprouting. Biomacromolecules 2018; 19:4168-4181. [PMID: 30253093 DOI: 10.1021/acs.biomac.8b00519] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Biomaterial strategies focused on designing scaffolds with physiologically relevant gradients provide a promising means for elucidating 3D vascular cell responses to spatial and temporal variations in matrix properties. In this study, we present a photopolymerization approach, ascending photofrontal free-radical polymerization, to generate proteolytically degradable hydrogel scaffolds of poly(ethylene) glycol with tunable continuous gradients of (1) elastic modulus (slope of 80 Pa/mm) and uniform immobilized RGD concentration (2.06 ± 0.12 mM) and (2) immobilized concentration of the RGD cell-adhesion peptide ligand (slope of 58.8 μM/mm) and uniform elastic modulus (597 ± 22 Pa). Using a coculture model of vascular sprouting, scaffolds embedded with gradients of elastic modulus induced increases in the number of vascular sprouts in the opposing gradient direction, whereas RGD gradient scaffolds promoted increases in the length of vascular sprouts toward the gradient. Furthermore, increases in vascular sprout length were found to be prominent in regions containing higher immobilized RGD concentration.
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Affiliation(s)
- Yusheng J He
- Biomedical Engineering Department , Illinois Institute of Technology , Chicago , Illinois 60616 , United States
| | - Daniel A Young
- Biomedical Engineering Department , Illinois Institute of Technology , Chicago , Illinois 60616 , United States
| | - Merjem Mededovic
- Biomedical Engineering Department , Illinois Institute of Technology , Chicago , Illinois 60616 , United States
| | - Kevin Li
- Biomedical Engineering Department , Illinois Institute of Technology , Chicago , Illinois 60616 , United States
| | - Chengyue Li
- Biomedical Engineering Department , Illinois Institute of Technology , Chicago , Illinois 60616 , United States
| | - Kenneth Tichauer
- Biomedical Engineering Department , Illinois Institute of Technology , Chicago , Illinois 60616 , United States
| | - David Venerus
- Chemical and Biological Engineering Department , Illinois Institute of Technology , Chicago , Illinois 60616 , United States
| | - Georgia Papavasiliou
- Biomedical Engineering Department , Illinois Institute of Technology , Chicago , Illinois 60616 , United States
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17
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ElMahmoudy M, Curto VF, Ferro M, Hama A, Malliaras GG, O'Connor RP, Sanaur S. Electrically controlled cellular migration on a periodically micropatterned PEDOT:PSS conducting polymer platform. J Appl Polym Sci 2018. [DOI: 10.1002/app.47029] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- M. ElMahmoudy
- IMT Mines Saint-Etienne, Provence Microelectronics Center, Department of Bioelectronics; F-13541 Gardanne France
| | - V. F. Curto
- IMT Mines Saint-Etienne, Provence Microelectronics Center, Department of Bioelectronics; F-13541 Gardanne France
| | - M. Ferro
- IMT Mines Saint-Etienne, Provence Microelectronics Center, Department of Bioelectronics; F-13541 Gardanne France
| | - A. Hama
- IMT Mines Saint-Etienne, Provence Microelectronics Center, Department of Bioelectronics; F-13541 Gardanne France
| | - G. G. Malliaras
- IMT Mines Saint-Etienne, Provence Microelectronics Center, Department of Bioelectronics; F-13541 Gardanne France
| | - R. P. O'Connor
- IMT Mines Saint-Etienne, Provence Microelectronics Center, Department of Bioelectronics; F-13541 Gardanne France
| | - S. Sanaur
- IMT Mines Saint-Etienne, Provence Microelectronics Center, Department of Flexible Electronics; F-13541 Gardanne France
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18
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Bautista-Gomez J, Forzano AV, Austin JM, Collinson MM, Higgins DA. Vapor-Phase Plotting of Organosilane Chemical Gradients. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:9665-9672. [PMID: 30044095 DOI: 10.1021/acs.langmuir.8b01977] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Vapor-phase plotting of organosilane-based self-assembled monolayer (SAM) gradients is demonstrated for the first time. Patterned SAMs are formed by delivering gas-phase organotrichlorosilane precursors to a reactive silica surface using a heated glass capillary. The capillary is attached via a short flexible tube to a reservoir containing the precursor dissolved in toluene. The proximal end of the capillary is positioned at an experimentally optimized distance of 30 μm above the substrate during film deposition. The capillary is mounted to a stepper-motor-driven X, Y plotter for raster scanning above the surface. Two different organotrichlorosilane precursors are employed in this initial demonstration: n-octyltrichlorosilane and 3-cyanopropyltrichlorosilane. The dependence of SAM deposition on ambient relative humidity, capillary-substrate separation, raster-scanning speed, and solvent viscosity and volatility is explored and optimum deposition conditions are identified. The optimized procedures are used to plot uniformly modified square "pads" and gradients of the silanes. Film formation is verified and the gradient profiles are obtained by sessile drop water contact angle measurements, spectroscopic ellipsometry measurements of film thickness, and X-ray photoelectron spectroscopy mapping. The resolution of the plotting process is currently in the millimeter range and depends on capillary diameter and distance from the substrate surface. Vapor-phase plotting affords a unique direct-write method for producing patterned and chemically graded SAMS that may find applications in microfluidic devices, planar chromatography, and optical and electronic devices.
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Affiliation(s)
- Judith Bautista-Gomez
- Department of Chemistry , Kansas State University , Manhattan , Kansas 66506-0401 , United States
| | - Anna V Forzano
- Department of Chemistry , Virginia Commonwealth University , Richmond , Virginia 23284-2006 , United States
| | - Joshua M Austin
- Department of Chemistry , Kansas State University , Manhattan , Kansas 66506-0401 , United States
| | - Maryanne M Collinson
- Department of Chemistry , Virginia Commonwealth University , Richmond , Virginia 23284-2006 , United States
| | - Daniel A Higgins
- Department of Chemistry , Kansas State University , Manhattan , Kansas 66506-0401 , United States
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19
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Collinson MM, Higgins DA. Organosilane Chemical Gradients: Progress, Properties, and Promise. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:13719-13732. [PMID: 28849936 DOI: 10.1021/acs.langmuir.7b02259] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Chemical gradients play an important role in nature, driving many different phenomena critical to life, including the transport of chemical species across membranes and the transport, attachment, and assembly of cells. Taking a cue from these natural processes, scientists and engineers are now working to develop synthetic chemical gradients for use in a broad range of applications, such as in high-throughput investigations of surface properties, as means to guide the motions and/or assembly of liquid droplets, vesicles, nanoparticles, and cells and as new media for stationary-phase-gradient chemical separations. Our groups have been working to develop new methods for preparing chemical gradients from organoalkoxysilane and organochlorosilane precursors and to obtain a better understanding of their properties on macroscopic to microscopic length scales. This review highlights our recent work on the development of controlled-rate infusion and infusion-withdrawal dip-coating methods for the preparation of gradients on planar glass and silicon substrates, on thin-layer chromatography plates, and in capillaries and monoliths for liquid chromatography. We also cover the new knowledge gained from the characterization of our gradients using sessile drop and Wilhelmy plate dynamic water contact angle measurements, X-ray photoelectron spectroscopy mapping, and single-molecule tracking and spectroscopy. Our studies reveal important evidence of phase separation and cooperative interactions occurring along multicomponent gradients. Emerging concepts and new directions in the preparation and characterization of organosilane-based chemical gradients are also discussed.
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Affiliation(s)
- Maryanne M Collinson
- Department of Chemistry, Virginia Commonwealth University , 1001 West Main Street, Richmond, Virginia 23284-2006, United States
| | - Daniel A Higgins
- Department of Chemistry, Kansas State University , 1212 Mid-Campus Drive North, Manhattan, Kansas 66506-0401, United States
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20
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Zhao MX, Li J, Gao X. Gradient Coating of Polydopamine via CDR. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:6727-6731. [PMID: 28657319 DOI: 10.1021/acs.langmuir.7b01463] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Surfaces with gradient properties are of central importance for a number of chemical and biological processes. Here, we report rapid generation of a polydopamine (PDA) gradient on hydrophobic surfaces by a simple, low cost, and general technology, cyclic draining-replenishing (CDR). Due to the unique surface chemistry of PDA, it enables continuous and precise control of surface wettability and subsequent deposition of organic and inorganic compounds. Using kanamycin as a model compound, we show that the gradient PDA membrane potentially can be used to prepare minimum inhibitory concentration (MIC) test strips for quantifying resistance of antimicrobial agents from microorganisms. Because CDR is experimentally simple, scalable, fast, and does not require specialized reagents or instruments, we envision this platform can be easily adopted to create a variety of functional surfaces.
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Affiliation(s)
- Mei-Xia Zhao
- Department of Bioengineering, University of Washington , Seattle, Washington 98195, United States
- Key Laboratory of Natural Medicine and Immune-Engineering of Henan Province, Henan University , Kaifeng 475004, China
| | - Junwei Li
- Department of Bioengineering, University of Washington , Seattle, Washington 98195, United States
| | - Xiaohu Gao
- Department of Bioengineering, University of Washington , Seattle, Washington 98195, United States
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21
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Caballero D, Comelles J, Piel M, Voituriez R, Riveline D. Ratchetaxis: Long-Range Directed Cell Migration by Local Cues. Trends Cell Biol 2016; 25:815-827. [PMID: 26615123 DOI: 10.1016/j.tcb.2015.10.009] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Revised: 10/07/2015] [Accepted: 10/12/2015] [Indexed: 01/22/2023]
Abstract
Directed cell migration is usually thought to depend on the presence of long-range gradients of either chemoattractants or physical properties such as stiffness or adhesion. However, in vivo, chemical or mechanical gradients have not systematically been observed. Here we review recent in vitro experiments, which show that other types of spatial guidance cues can bias cell motility. Introducing local geometrical or mechanical anisotropy in the cell environment, such as adhesive/topographical microratchets or tilted micropillars, show that local and periodic external cues can direct cell motion. Together with modeling, these experiments suggest that cell motility can be viewed as a stochastic phenomenon, which can be biased by various types of local cues, leading to directional migration.
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Affiliation(s)
- David Caballero
- Laboratory of Cell Physics ISIS/IGBMC, CNRS and University of Strasbourg, Strasbourg, France; Development and Stem Cells Program, IGBMC, CNRS, INSERM and University of Strasbourg, Illkirch, France
| | - Jordi Comelles
- Laboratory of Cell Physics ISIS/IGBMC, CNRS and University of Strasbourg, Strasbourg, France; Development and Stem Cells Program, IGBMC, CNRS, INSERM and University of Strasbourg, Illkirch, France
| | - Matthieu Piel
- Institut Curie, PSL Research University, CNRS, UMR 144, Bio6, F-75005, Paris, France.
| | - Raphaël Voituriez
- Laboratoire de Physique Théorique de la Matière Condensée, CNRS UMR 7600, Université Pierre et Marie Curie, Paris, France; Laboratoire Jean Perrin, CNRS UMR 8237, Université Pierre et Marie Curie, Paris, France.
| | - Daniel Riveline
- Laboratory of Cell Physics ISIS/IGBMC, CNRS and University of Strasbourg, Strasbourg, France; Development and Stem Cells Program, IGBMC, CNRS, INSERM and University of Strasbourg, Illkirch, France.
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22
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Ventre M, Netti PA. Engineering Cell Instructive Materials To Control Cell Fate and Functions through Material Cues and Surface Patterning. ACS APPLIED MATERIALS & INTERFACES 2016; 8:14896-14908. [PMID: 26693600 DOI: 10.1021/acsami.5b08658] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Mastering the interaction between cells and extracellular environment is a fundamental prerequisite in order to engineer functional biomaterial interfaces able to instruct cells with specific commands. Such advanced biomaterials might find relevant application in prosthesis design, tissue engineering, diagnostics and stem cell biology. Because of the highly complex, dynamic, and multifaceted context, a thorough understanding of the cell-material crosstalk has not been achieved yet; however, a variety of material features including biological cues, topography, and mechanical properties have been proved to impact the strength and the nature of the cell-material interaction, eventually affecting cell fate and functions. Although the nature of these three signals may appear very different, they are equated by their participation in the same material-cytoskeleton crosstalk pathway as they regulate cell adhesion events. In this work we present recent and relevant findings on the material-induced cell responses, with a particular emphasis on how the presentation of biochemical/biophysical signals modulates cell behavior. Finally, we summarize and discuss the literature data to draw out unifying elements concerning cell recognition of and reaction to signals displayed by material surfaces.
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Affiliation(s)
- Maurizio Ventre
- Department of Chemical, Materials and Industrial Production Engineering and Interdisciplinary Research Centre on Biomaterials, University of Naples Federico II , P.le Tecchio 80, 80125 Naples, Italy
- Center for Advanced Biomaterials for Health Care@CRIB, Istituto Italiano di Tecnologia , L.go Barsanti e Matteucci 53, 80125 Naples, Italy
| | - Paolo A Netti
- Department of Chemical, Materials and Industrial Production Engineering and Interdisciplinary Research Centre on Biomaterials, University of Naples Federico II , P.le Tecchio 80, 80125 Naples, Italy
- Center for Advanced Biomaterials for Health Care@CRIB, Istituto Italiano di Tecnologia , L.go Barsanti e Matteucci 53, 80125 Naples, Italy
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23
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24
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Hielscher A, Ellis K, Qiu C, Porterfield J, Gerecht S. Fibronectin Deposition Participates in Extracellular Matrix Assembly and Vascular Morphogenesis. PLoS One 2016; 11:e0147600. [PMID: 26811931 PMCID: PMC4728102 DOI: 10.1371/journal.pone.0147600] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Accepted: 01/06/2016] [Indexed: 11/21/2022] Open
Abstract
The extracellular matrix (ECM) has been demonstrated to facilitate angiogenesis. In particular, fibronectin has been documented to activate endothelial cells, resulting in their transition from a quiescent state to an active state in which the cells exhibit enhanced migration and proliferation. The goal of this study is to examine the role of polymerized fibronectin during vascular tubulogenesis using a 3 dimensional (3D) cell-derived de-cellularized matrix. A fibronectin-rich 3D de-cellularized ECM was used as a scaffold to study vascular morphogenesis of endothelial cells (ECs). Confocal analyses of several matrix proteins reveal high intra- and extra-cellular deposition of fibronectin in formed vascular structures. Using a small peptide inhibitor of fibronectin polymerization, we demonstrate that inhibition of fibronectin fibrillogenesis in ECs cultured atop de-cellularized ECM resulted in decreased vascular morphogenesis. Further, immunofluorescence and ultrastructural analyses reveal decreased expression of stromal matrix proteins in the absence of polymerized fibronectin with high co-localization of matrix proteins found in association with polymerized fibronectin. Evaluating vascular kinetics, live cell imaging showed that migration, migration velocity, and mean square displacement, are disrupted in structures grown in the absence of polymerized fibronectin. Additionally, vascular organization failed to occur in the absence of a polymerized fibronectin matrix. Consistent with these observations, we tested vascular morphogenesis following the disruption of EC adhesion to polymerized fibronectin, demonstrating that block of integrins α5β1 and αvβ3, abrogated vascular morphogenesis. Overall, fibronectin deposition in a 3D cell-derived de-cellularized ECM appears to be imperative for matrix assembly and vascular morphogenesis.
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Affiliation(s)
- Abigail Hielscher
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland, 21218, United States of America
- Johns Hopkins Physical Sciences-Oncology Center, Johns Hopkins University, Baltimore, Maryland, 21218, United States of America
- Department of Biomedical Sciences, Georgia Philadelphia College of Osteopathic Medicine, Suwanee, Georgia, 30024, United States of America
| | - Kim Ellis
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland, 21218, United States of America
| | - Connie Qiu
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland, 21218, United States of America
| | - Josh Porterfield
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland, 21218, United States of America
| | - Sharon Gerecht
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland, 21218, United States of America
- Johns Hopkins Physical Sciences-Oncology Center, Johns Hopkins University, Baltimore, Maryland, 21218, United States of America
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, Maryland, 21218, United States of America
- * E-mail:
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25
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Yu S, Mao Z, Gao C. Preparation of gelatin density gradient on poly(ε-caprolactone) membrane and its influence on adhesion and migration of endothelial cells. J Colloid Interface Sci 2015; 451:177-83. [DOI: 10.1016/j.jcis.2015.03.056] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Revised: 03/29/2015] [Accepted: 03/30/2015] [Indexed: 10/23/2022]
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26
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Jain G, Ford AJ, Rajagopalan P. Opposing Rigidity-Protein Gradients Reverse Fibroblast Durotaxis. ACS Biomater Sci Eng 2015; 1:621-631. [PMID: 33435085 DOI: 10.1021/acsbiomaterials.5b00229] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The migration of cells is a complex and dynamic process that is governed by several stimuli acting simultaneously. In vivo, cells receive and process a wide range of cues that guide their motion and migratory characteristics such as speed and directionality. The design of biomaterials that can recapitulate the combinatorial signaling environment can aid in understanding how migrating cells respond to more than one stimulus and when one cue dominates over the other. We have designed hydrogel substrates that exhibit opposing rigidity-and collagen gradients. Within the boundaries of the interfacial region, the values for substrate modulus decreased in one direction with a concomitant increase in the concentration of surface-bound collagen. The well-known durotactic migration of fibroblasts was first validated on substrates that only exhibit a gradient in modulus while keeping the concentration of surface-bound collagen constant. Upon increasing the collagen concentration on the low-modulus regions by 4- or 7-fold compared to the high-modulus side of the interface, cells exhibited directed migration toward the soft regions of the substrate. This effect was more pronounced when the surface-bound collagen concentration was 7-fold greater. Cell displacements, areas, cytoskeleton and focal adhesions were investigated on the opposing rigidity-immobilized collagen gradients. These features were affected by the elastic modulus of the substrate as well as the change in protein concentration. In the future, incorporating multiple gradients within a single substrate will lead to a deeper and more comprehensive understanding of cells navigate through the complex in vivo microenvironment.
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Affiliation(s)
- Gaurav Jain
- School of Biomedical Engineering and Sciences, §Department of Chemical Engineering, and ⊥ICTAS Center for Systems Biology of Engineered Tissues, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Andrew J Ford
- School of Biomedical Engineering and Sciences, Department of Chemical Engineering, and ⊥ICTAS Center for Systems Biology of Engineered Tissues, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Padmavathy Rajagopalan
- School of Biomedical Engineering and Sciences, Department of Chemical Engineering, and ICTAS Center for Systems Biology of Engineered Tissues, Virginia Tech, Blacksburg, Virginia 24061, United States
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Ren T, Yu S, Mao Z, Gao C. A complementary density gradient of zwitterionic polymer brushes and NCAM peptides for selectively controlling directional migration of Schwann cells. Biomaterials 2015; 56:58-67. [DOI: 10.1016/j.biomaterials.2015.03.052] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2015] [Revised: 03/26/2015] [Accepted: 03/27/2015] [Indexed: 12/13/2022]
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28
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Comelles J, Caballero D, Voituriez R, Hortigüela V, Wollrab V, Godeau AL, Samitier J, Martínez E, Riveline D. Cells as active particles in asymmetric potentials: motility under external gradients. Biophys J 2015; 107:1513-22. [PMID: 25296303 DOI: 10.1016/j.bpj.2014.08.001] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Revised: 07/11/2014] [Accepted: 08/01/2014] [Indexed: 12/11/2022] Open
Abstract
Cell migration is a crucial event during development and in disease. Mechanical constraints and chemical gradients can contribute to the establishment of cell direction, but their respective roles remain poorly understood. Using a microfabricated topographical ratchet, we show that the nucleus dictates the direction of cell movement through mechanical guidance by its environment. We demonstrate that this direction can be tuned by combining the topographical ratchet with a biochemical gradient of fibronectin adhesion. We report competition and cooperation between the two external cues. We also quantitatively compare the measurements associated with the trajectory of a model that treats cells as fluctuating particles trapped in a periodic asymmetric potential. We show that the cell nucleus contributes to the strength of the trap, whereas cell protrusions guided by the adhesive gradients add a constant tunable bias to the direction of cell motion.
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Affiliation(s)
- Jordi Comelles
- Laboratory of Cell Physics ISIS/IGBMC, CNRS UMR 7006 and University of Strasbourg, Strasbourg, France; Development and Stem Cells Program, IGBMC, CNRS UMR 7104, INSERM (U964) and University of Strasbourg, Illkirch, France; Nanobioengineering Group, Institute for Bioengineering of Catalonia (IBEC), Barcelona, Spain
| | - David Caballero
- Laboratory of Cell Physics ISIS/IGBMC, CNRS UMR 7006 and University of Strasbourg, Strasbourg, France; Development and Stem Cells Program, IGBMC, CNRS UMR 7104, INSERM (U964) and University of Strasbourg, Illkirch, France
| | - Raphaël Voituriez
- Laboratoire de Physique Théorique de la Matière Condensée, CNRS UMR 7600, Université Pierre et Marie Curie, Paris, France; Laboratoire Jean Perrin, CNRS FRE 3231, Université Pierre et Marie Curie, Paris, France
| | - Verónica Hortigüela
- Biomimetic Systems for Cell Engineering, Institute for Bioengineering of Catalonia (IBEC), Barcelona, Spain; Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina, Zaragoza, Spain
| | - Viktoria Wollrab
- Laboratory of Cell Physics ISIS/IGBMC, CNRS UMR 7006 and University of Strasbourg, Strasbourg, France; Development and Stem Cells Program, IGBMC, CNRS UMR 7104, INSERM (U964) and University of Strasbourg, Illkirch, France
| | - Amélie Luise Godeau
- Laboratory of Cell Physics ISIS/IGBMC, CNRS UMR 7006 and University of Strasbourg, Strasbourg, France; Development and Stem Cells Program, IGBMC, CNRS UMR 7104, INSERM (U964) and University of Strasbourg, Illkirch, France
| | - Josep Samitier
- Nanobioengineering Group, Institute for Bioengineering of Catalonia (IBEC), Barcelona, Spain; Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina, Zaragoza, Spain; Department of Electronics, University of Barcelona, Barcelona, Spain
| | - Elena Martínez
- Biomimetic Systems for Cell Engineering, Institute for Bioengineering of Catalonia (IBEC), Barcelona, Spain; Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina, Zaragoza, Spain; Department of Electronics, University of Barcelona, Barcelona, Spain
| | - Daniel Riveline
- Laboratory of Cell Physics ISIS/IGBMC, CNRS UMR 7006 and University of Strasbourg, Strasbourg, France; Development and Stem Cells Program, IGBMC, CNRS UMR 7104, INSERM (U964) and University of Strasbourg, Illkirch, France.
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29
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Zhang C, Sitt A, Koo HJ, Waynant KV, Hess H, Pate BD, Braun PV. Autonomic Molecular Transport by Polymer Films Containing Programmed Chemical Potential Gradients. J Am Chem Soc 2015; 137:5066-73. [DOI: 10.1021/jacs.5b00240] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Chunjie Zhang
- Department
of Materials Science and Engineering, Beckman Institute for Advanced
Science and Technology, Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana—Champaign, Urbana, Illinois 61801, United States
| | - Amit Sitt
- Department
of Biomedical Engineering, Columbia University, 1210 Amsterdam Avenue, New York, New York 10027, United States
| | - Hyung-Jun Koo
- Department
of Materials Science and Engineering, Beckman Institute for Advanced
Science and Technology, Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana—Champaign, Urbana, Illinois 61801, United States
- Department of Chemical & Biomolecular Engineering, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul 139-743, Korea
| | - Kristopher V. Waynant
- Department
of Materials Science and Engineering, Beckman Institute for Advanced
Science and Technology, Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana—Champaign, Urbana, Illinois 61801, United States
| | - Henry Hess
- Department
of Biomedical Engineering, Columbia University, 1210 Amsterdam Avenue, New York, New York 10027, United States
| | - Brian D. Pate
- Defense Threat Reduction Agency, Fort Belvoir, Virginia 22060, United States
| | - Paul V. Braun
- Department
of Materials Science and Engineering, Beckman Institute for Advanced
Science and Technology, Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana—Champaign, Urbana, Illinois 61801, United States
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30
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Dhowre HS, Rajput S, Russell NA, Zelzer M. Responsive cell–material interfaces. Nanomedicine (Lond) 2015; 10:849-71. [DOI: 10.2217/nnm.14.222] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Major design aspects for novel biomaterials are driven by the desire to mimic more varied and complex properties of a natural cellular environment with man-made materials. The development of stimulus responsive materials makes considerable contributions to the effort to incorporate dynamic and reversible elements into a biomaterial. This is particularly challenging for cell–material interactions that occur at an interface (biointerfaces); however, the design of responsive biointerfaces also presents opportunities in a variety of applications in biomedical research and regenerative medicine. This review will identify the requirements imposed on a responsive biointerface and use recent examples to demonstrate how some of these requirements have been met. Finally, the next steps in the development of more complex biomaterial interfaces, including multiple stimuli-responsive surfaces, surfaces of 3D objects and interactive biointerfaces will be discussed.
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Affiliation(s)
- Hala S Dhowre
- University of Nottingham, Neurophotonics Lab, Faculty of Engineering, Nottingham, NG7 2RD, UK
- University of Nottingham, School of Pharmacy, Boots Science Building, University Park, Nottingham, NG7 2RD, UK
| | - Sunil Rajput
- University of Nottingham, Neurophotonics Lab, Faculty of Engineering, Nottingham, NG7 2RD, UK
- University of Nottingham, School of Pharmacy, Boots Science Building, University Park, Nottingham, NG7 2RD, UK
| | - Noah A Russell
- University of Nottingham, Neurophotonics Lab, Faculty of Engineering, Nottingham, NG7 2RD, UK
| | - Mischa Zelzer
- University of Nottingham, School of Pharmacy, Boots Science Building, University Park, Nottingham, NG7 2RD, UK
- Interface & Surface Analysis Centre, Boots Science Building, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
- National Physical Laboratory, Teddington, Middlesex, TW11 0LW, UK
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31
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Vernekar VN, Wallace CS, Wu M, Chao JT, O'Connor SK, Raleigh A, Liu X, Haugh JM, Reichert WM. Bi-ligand surfaces with oriented and patterned protein for real-time tracking of cell migration. Colloids Surf B Biointerfaces 2014; 123:225-35. [PMID: 25262410 PMCID: PMC4259856 DOI: 10.1016/j.colsurfb.2014.09.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2014] [Revised: 09/08/2014] [Accepted: 09/10/2014] [Indexed: 10/24/2022]
Abstract
A bioactive platform for the quantitative observation of cell migration is presented by (1) presenting migration factors in a well-defined manner on 2-D substrates, and (2) enabling continuous cell tracking. Well-defined substrate presentation is achieved by correctly orienting immobilized proteins (chemokines and cell adhesion molecules), such that the active site is accessible to cell surface receptors. A thiol-terminated self-assembled monolayer on a silica slide was used as a base substrate for subsequent chemistry. The thiol-terminated surface was converted to an immobilized metal ion surface using a maleimido-nitrilotriacetic acid (NTA) cross-linker that bound Histidine-tagged recombinant proteins on the surface with uniform distribution and specific orientation. This platform was used to study the influence of surface-immobilized chemokine SDF-1α and cell adhesion molecule ICAM-1 on murine splenic B lymphocyte migration. While soluble SDF-1α induced trans-migration in a Boyden Chamber type chemotaxis assay, immobilized SDF-1α alone did not elicit significant surface-migration on our test-platform surface. Surface-immobilized cell adhesion protein, ICAM-1, in conjunction with activation enabled migration of this cell type on our surface. Controlled exposure to UV light was used to produce stable linear gradients of His-tagged recombinant SDF-1α co-immobilized with ICAM-1 following our surface chemistry approach. XPS and antibody staining showed defined gradients of outwardly oriented SDF-1α active sites. This test platform can be especially valuable for investigators interested in studying the influence of surface-immobilized factors on cell behavior and may also be used as a cell migration enabling platform for testing the effects of various diffusible agents.
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Affiliation(s)
- Varadraj N Vernekar
- Department of Biomedical Engineering, Duke University, Durham, NC 27708, United States
| | - Charles S Wallace
- Department of Biomedical Engineering, Duke University, Durham, NC 27708, United States
| | - Mina Wu
- Department of Biomedical Engineering, Duke University, Durham, NC 27708, United States
| | - Joshua T Chao
- Department of Biomedical Engineering, Duke University, Durham, NC 27708, United States
| | - Shannon K O'Connor
- Department of Biomedical Engineering, Duke University, Durham, NC 27708, United States
| | - Aimee Raleigh
- Department of Biomedical Engineering, Duke University, Durham, NC 27708, United States
| | - Xiaji Liu
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC 27695, United States
| | - Jason M Haugh
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC 27695, United States
| | - William M Reichert
- Department of Biomedical Engineering, Duke University, Durham, NC 27708, United States.
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32
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Deng J, Ren T, Zhu J, Mao Z, Gao C. Adsorption of plasma proteins and fibronectin on poly(hydroxylethyl methacrylate) brushes of different thickness and their relationship with adhesion and migration of vascular smooth muscle cells. Regen Biomater 2014; 1:17-25. [PMID: 26814446 PMCID: PMC4669003 DOI: 10.1093/rb/rbu008] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Accepted: 08/23/2014] [Indexed: 12/27/2022] Open
Abstract
The surface-grafted poly(hydroxylethyl methacrylate) (PHEMA) molecules were demonstrated to show a brush state regardless of their molecular length (molecular weight). Adsorption of proteins from 10% fetal bovine serum (FBS), fibronectin (Fn) and bovine serum albumin (BSA) was quantified by ellipsometry, revealing that the amounts of FBS and Fn decreased monotonously along with the increase of PHEMA thickness, whereas not detectable for BSA when the PHEMA thickness was larger than 6 nm. Radio immunoassay found that the adsorption of Fn from 10% FBS had no significant difference regardless of the PHEMA thickness. However, ELISA results showed that the Arg-Gly-Asp (RGD) activity of adsorbed Fn decreased with the increase of PHEMA thickness. By comparison of cellular behaviors of vascular smooth muscle cells (VSMCs) being cultured in vitro in the normal serum-containing medium and the Fn-depleted serum-containing medium, the significant role of Fn on modulating the adhesion and migration of VSMCs was verified. Taking account all the results, the Fn adsorption model and its role on linking the biomaterials surface to the VSMCs behaviors are proposed.
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Affiliation(s)
- Jun Deng
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Tanchen Ren
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Jiyu Zhu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Zhengwei Mao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Changyou Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
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33
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Lamb BM, Luo W, Nagdas S, Yousaf MN. Cell division orientation on biospecific peptide gradients. ACS APPLIED MATERIALS & INTERFACES 2014; 6:11523-11528. [PMID: 25007410 DOI: 10.1021/am502209k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
An assay was developed for determining cell division orientation on gradients. The methodology is based on permeating microfluidic devices with alkanethiols and subsequent printing of cell adhesive peptide gradient self-assembled monolayers (SAMs) for examining oriented cell divisions. To our knowledge, there has been no study examining the correlation between cell division orientations based on an underlying ligand gradient. These results implicate an important role for how the extracellular matrix may control cell division. These surfaces would allow for a range of cell behavior (polarization, migration, division, differentiation) studies on tailored biospecific gradients and as a potential biotechnological platform to assess small molecule perturbations of cell function.
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Affiliation(s)
- Brian M Lamb
- Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
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34
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Ren T, Yu S, Mao Z, Moya SE, Han L, Gao C. Complementary Density Gradient of Poly(hydroxyethyl methacrylate) and YIGSR Selectively Guides Migration of Endotheliocytes. Biomacromolecules 2014; 15:2256-64. [DOI: 10.1021/bm500385n] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tanchen Ren
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Shan Yu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Zhengwei Mao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | | | - Lulu Han
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Changyou Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
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35
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Wu J, Mao Z, Han L, Zhao Y, Xi J, Gao C. A density gradient of basic fibroblast growth factor guides directional migration of vascular smooth muscle cells. Colloids Surf B Biointerfaces 2014; 117:290-5. [PMID: 24657928 DOI: 10.1016/j.colsurfb.2014.02.043] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Revised: 02/08/2014] [Accepted: 02/17/2014] [Indexed: 01/15/2023]
Abstract
The migration of vascular smooth muscle cells (VSMCs) is an important process in many physiological events. It is of paramount importance to control the migration rate and direction of VSMCs by biomaterials. In this paper, a density gradient of basic fibroblast growth factor (bFGF) was fabricated using an injection method and the bio-conjugation between heparin and bFGF. The density of bFGF gradually increased with a slope of 17 ng/cm(2)/mm. Adhesion and migration of VSMCs were studied on the bFGF gradient. The VSMCs exhibited preferential orientation and an enhanced directional migration behavior on the gradient surface. Up to 70% cells migrated towards the region with a higher density of bFGF on the gradient. However, the bFGF gradient had no effect on the cell migration rate.
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Affiliation(s)
- Jindan Wu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China; MOE Key Laboratory of Advanced Textile Materials & Manufacturing Technology, College of Materials and Textile, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Zhengwei Mao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Lulu Han
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Yizhi Zhao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Jiabin Xi
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Changyou Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
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36
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Immobilized laminin concentration gradients on electrospun fiber scaffolds for controlled neurite outgrowth. Biointerphases 2014; 9:011003. [DOI: 10.1116/1.4857295] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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37
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Kannan B, Nokura K, Alvarez JC, Higgins DA, Collinson MM. Fabrication of surface charge gradients in open-tubular capillaries and their characterization by spatially resolved pulsed streaming potential measurements. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:15260-15265. [PMID: 24274139 DOI: 10.1021/la402934m] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Surface charge gradients have been formed on the inside surface of 75 μm i.d. silica capillaries via controlled rate infusion using 3-aminopropyltriethoxysilane as the reactive precursor. These 400 mm length gradients have been characterized using spatially resolved streaming potential measurements, from which the zeta potential as a function of distance was determined. The gradient capillaries exhibited a gradual variation in zeta potential from top to bottom, whereas uniformly modified and as-received capillaries were relatively homogeneous along their length. For a gradient prepared with a relatively high concentration of aminosilane, the zeta potential changed over 60 mV from one end of the capillary to the other, yielding a variation in the magnitude of the apparent surface charge of ~7 fold. By changing the concentration of the aminoalkoxysilane and/or the rate of infusion, both the value of the zeta potential (and hence surface charge) and its spatial profile (i.e., rate of change with distance) could be manipulated.
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Affiliation(s)
- Balamurali Kannan
- Department of Chemistry, Virginia Commonwealth University , Richmond, Virginia 23284-2006, United States
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38
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Jagielska A, Wilhite KD, Van Vliet KJ. Extracellular acidic pH inhibits oligodendrocyte precursor viability, migration, and differentiation. PLoS One 2013; 8:e76048. [PMID: 24098762 PMCID: PMC3786906 DOI: 10.1371/journal.pone.0076048] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2013] [Accepted: 08/22/2013] [Indexed: 02/04/2023] Open
Abstract
Axon remyelination in the central nervous system requires oligodendrocytes that produce myelin. Failure of this repair process is characteristic of neurodegeneration in demyelinating diseases such as multiple sclerosis, and it remains unclear how the lesion microenvironment contributes to decreased remyelination potential of oligodendrocytes. Here, we show that acidic extracellular pH, which is characteristic of demyelinating lesions, decreases the migration, proliferation, and survival of oligodendrocyte precursor cells (OPCs), and reduces their differentiation into oligodendrocytes. Further, OPCs exhibit directional migration along pH gradients toward acidic pH. These in vitro findings support a possible in vivo scenario whereby pH gradients attract OPCs toward acidic lesions, but resulting reduction in OPC survival and motility in acid decreases progress toward demyelinated axons and is further compounded by decreased differentiation into myelin-producing oligodendrocytes. As these processes are integral to OPC response to nerve demyelination, our results suggest that lesion acidity could contribute to decreased remyelination.
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Affiliation(s)
- Anna Jagielska
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Kristen D. Wilhite
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Krystyn J. Van Vliet
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
- * E-mail:
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39
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Nicosia C, Krabbenborg SO, Chen P, Huskens J. Shape-controlled fabrication of micron-scale surface chemical gradients via electrochemically activated copper(i) "click" chemistry. J Mater Chem B 2013; 1:5417-5428. [PMID: 32261248 DOI: 10.1039/c3tb20902d] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
We report an electrochemical method for the shape-controlled fabrication of micron-scale surface-bound chemical gradients. The approach is based on employing platinum microelectrode arrays on glass for the establishment of a Cu(i) solution gradient via local electrochemical reduction of Cu(ii) (cathodic reaction), and oxidation of the generated Cu(i) back to Cu(ii) (anodic reaction), under ambient conditions. The Cu(i) solution gradient, in the presence of an alkyne in solution and an azide monolayer on the glass surface in between the platinum electrodes, is exploited for the surface-confined gradient fabrication via the Huisgen 1,3-dipolar cycloaddition (CuAAC). Owing to the high sensitivity of the CuAAC on the Cu(i) concentration, we demonstrate here the control of the shape of the micron-scale surface gradient, in terms of steepness and surface density, as a function of the reaction conditions. The surface gradients were assessed by fluorescence microscopy and time-of-flight secondary ion mass spectrometry (Tof-SIMS). Moreover, bi-component and biomolecular gradients have been fabricated and a method for the electrochemically mediated patterning of surface chemical gradients on external azide-functionalized substrates has been developed for the implementation of bi-directional 2D surface gradients.
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Affiliation(s)
- Carlo Nicosia
- Molecular Nanofabrication group, MESA+ Institute for Nanotechnology, University of Twente, Enschede, The Netherlands.
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40
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Wu J, Mao Z, Hong Y, Han L, Gao C. Conjugation of Basic Fibroblast Growth Factor on a Heparin Gradient for Regulating the Migration of Different Types of Cells. Bioconjug Chem 2013; 24:1302-13. [DOI: 10.1021/bc300670t] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Jindan Wu
- MOE Key Laboratory
of Macromolecular
Synthesis and Functionalization, Department of Polymer
Science and Engineering, Zhejiang University, Hangzhou 310027, China
- MOE Key Laboratory of Advanced Textile Materials & Manufacturing Technology, College of Materials and Textile, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Zhengwei Mao
- MOE Key Laboratory
of Macromolecular
Synthesis and Functionalization, Department of Polymer
Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Yifeng Hong
- MOE Key Laboratory
of Macromolecular
Synthesis and Functionalization, Department of Polymer
Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Lulu Han
- MOE Key Laboratory
of Macromolecular
Synthesis and Functionalization, Department of Polymer
Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Changyou Gao
- MOE Key Laboratory
of Macromolecular
Synthesis and Functionalization, Department of Polymer
Science and Engineering, Zhejiang University, Hangzhou 310027, China
- State Key Laboratory of Diagnosis
and Treatment for Infectious Diseases, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China
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41
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Lee J, Choi I, Yeo WS. Preparation of gradient surfaces by using a simple chemical reaction and investigation of cell adhesion on a two-component gradient. Chemistry 2013; 19:5609-16. [PMID: 23463672 DOI: 10.1002/chem.201203215] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2012] [Revised: 01/25/2013] [Indexed: 01/23/2023]
Abstract
This article describes a simple method for the generation of multicomponent gradient surfaces on self-assembled monolayers (SAMs) on gold in a precise and predictable manner, by harnessing a chemical reaction on the monolayer, and their applications. A quinone derivative on a monolayer was converted to an amine through spontaneous intramolecular cyclization following first-order reaction kinetics. An amine gradient on the surface on a scale of centimeters was realized by modulating the exposure time of the quinone-presenting monolayer to the chemical reagent. The resulting amine was used as a chemical handle to attach various molecules to the monolayer with formation of multicomponent gradient surfaces. The effectiveness of this strategy was verified by cyclic voltammetry (CV), matrix assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometry (MS), MS imaging, and contact-angle measurements. As a practical application, cell adhesion was investigated on RGD/PHSRN peptide/peptide gradient surfaces. Peptide PHSRN was found to synergistically enhance cell adhesion at the position where these two ligands are presented in equal amounts, while these peptide ligands were competitively involved in cell adhesion at other positions. This strategy of generating a gradient may be further expandable to the development of functional gradient surfaces of various molecules and materials, such as DNA, proteins, growth factors, and nanoparticles, and could therefore be useful in many fields of research and practical applications.
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Affiliation(s)
- Jeongwook Lee
- Department of Bioscience and Biotechnology, Bio/Molecular Informatics Center, Konkuk University, Seoul, Korea
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42
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Souharce G, Duchet-Rumeau J, Portinha D, Charlot A. Homogeneously and gradually anchored self-assembled monolayer by tunable vapor phase-assisted silanization. RSC Adv 2013. [DOI: 10.1039/c3ra41471j] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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43
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Han L, Mao Z, Wu J, Guo Y, Ren T, Gao C. Directional cell migration through cell–cell interaction on polyelectrolyte multilayers with swelling gradients. Biomaterials 2013; 34:975-84. [DOI: 10.1016/j.biomaterials.2012.10.041] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2012] [Accepted: 10/12/2012] [Indexed: 01/23/2023]
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44
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Yang HC, Wu QY, Wan LS, Xu ZK. Polydopamine gradients by oxygen diffusion controlled autoxidation. Chem Commun (Camb) 2013; 49:10522-4. [DOI: 10.1039/c3cc46127k] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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45
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Directional cell migration in an extracellular pH gradient: a model study with an engineered cell line and primary microvascular endothelial cells. Exp Cell Res 2012; 319:487-97. [PMID: 23153553 DOI: 10.1016/j.yexcr.2012.11.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2012] [Revised: 11/03/2012] [Accepted: 11/05/2012] [Indexed: 11/20/2022]
Abstract
Extracellular pH (pH(e)) gradients are characteristic of tumor and wound environments. Cell migration in these environments is critical to tumor progression and wound healing. While it has been shown previously that cell migration can be modulated in conditions of spatially invariant acidic pH(e) due to acid-induced activation of cell surface integrin receptors, the effects of pH(e) gradients on cell migration remain unknown. Here, we investigate cell migration in an extracellular pH(e) gradient, using both model α(v)β(3) CHO-B2 cells and primary microvascular endothelial cells. For both cell types, we find that the mean cell position shifts toward the acidic end of the gradient over time, and that cells preferentially polarize toward the acidic end of the gradient during migration. We further demonstrate that cell membrane protrusion stability and actin-integrin adhesion complex formation are increased in acidic pH(e), which could contribute to the preferential polarization toward acidic pH(e) that we observed for cells in pH(e) gradients. These results provide the first demonstration of preferential cell migration toward acid in a pH(e) gradient, with intriguing implications for directed cell migration in the tumor and wound healing environments.
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Han L, Mao Z, Wu J, Zhang Y, Gao C. Influences of surface chemistry and swelling of salt-treated polyelectrolyte multilayers on migration of smooth muscle cells. J R Soc Interface 2012; 9:3455-68. [PMID: 22896570 DOI: 10.1098/rsif.2012.0546] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
The cell migration plays a crucial role in a variety of physiological and pathological processes and can be regulated by the cell-substrate interactions. We found previously that the poly(sodium 4-styrenesulphonate) (PSS)/poly(diallyldimethylammonium) chloride (PDADMAC) multilayers post-treated in 1-5 M NaCl solutions result in continuous changes of their physico-chemical properties such as thickness, chemical composition, surface charge, swelling ratio and wettability. In this study, the responses of human smooth muscle cells (SMCs) on these salt-treated multilayers, particularly the governing factors of cellular migration that offer principles for designing therapeutics and implants, were disclosed. The cell migration rate was slowest on the 3 M NaCl-treated multilayers, which was comparable with that on tissue culture plates, but it was highest on 5 M NaCl-treated multilayers. To elucidate the intrinsic mechanisms, cell adhesion, proliferation, adhesion and related gene expressions were further investigated. The SMCs preferred to attach, spread and proliferate on the PSS-dominated surfaces with well-organized focal adhesion and actin fibres, especially on the 3 M NaCl-treated multilayers, while were kept round and showed low viability on the PDADMAC-dominated surfaces. The relative mRNA expression levels of adhesion-related genes such as fibronectin, laminin and focal adhesion kinase, and migration-related genes such as myosin IIA and Cdc42 were compared to explain the different cellular behaviours. These results reveal that the surface chemistry and the swelling of the salt-treated multilayers govern the cell migration behaviours.
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Affiliation(s)
- Lulu Han
- MOE of Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China
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Pajic-Lijakovic I, Plavsic M. Influence of microenvironment on cell adhesion, polarization, and migration. Int J Nanomedicine 2012; 7:3473-4. [PMID: 22848171 PMCID: PMC3405880 DOI: 10.2147/ijn.s33433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Affiliation(s)
- Ivana Pajic-Lijakovic
- Correspondence: Ivana Pajic-Lijakovic, Faculty of Technology and Metallurgy, University of Belgrade, 11000 Belgrade, Serbia, Email
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Wu J, Mao Z, Tan H, Han L, Ren T, Gao C. Gradient biomaterials and their influences on cell migration. Interface Focus 2012; 2:337-55. [PMID: 23741610 PMCID: PMC3363018 DOI: 10.1098/rsfs.2011.0124] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2011] [Accepted: 02/24/2012] [Indexed: 12/13/2022] Open
Abstract
Cell migration participates in a variety of physiological and pathological processes such as embryonic development, cancer metastasis, blood vessel formation and remoulding, tissue regeneration, immune surveillance and inflammation. The cells specifically migrate to destiny sites induced by the gradually varying concentration (gradient) of soluble signal factors and the ligands bound with the extracellular matrix in the body during a wound healing process. Therefore, regulation of the cell migration behaviours is of paramount importance in regenerative medicine. One important way is to create a microenvironment that mimics the in vivo cellular and tissue complexity by incorporating physical, chemical and biological signal gradients into engineered biomaterials. In this review, the gradients existing in vivo and their influences on cell migration are briefly described. Recent developments in the fabrication of gradient biomaterials for controlling cellular behaviours, especially the cell migration, are summarized, highlighting the importance of the intrinsic driving mechanism for tissue regeneration and the design principle of complicated and advanced tissue regenerative materials. The potential uses of the gradient biomaterials in regenerative medicine are introduced. The current and future trends in gradient biomaterials and programmed cell migration in terms of the long-term goals of tissue regeneration are prospected.
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Affiliation(s)
- Jindan Wu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China
| | - Zhengwei Mao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China
| | - Huaping Tan
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China
| | - Lulu Han
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China
| | - Tanchen Ren
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China
| | - Changyou Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China
- State Key Laboratory of Diagnosis and Treatment for Infectious Diseases, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, People's Republic of China
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Amselem G, Theves M, Bae A, Bodenschatz E, Beta C. A stochastic description of Dictyostelium chemotaxis. PLoS One 2012; 7:e37213. [PMID: 22662138 PMCID: PMC3360683 DOI: 10.1371/journal.pone.0037213] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2011] [Accepted: 04/15/2012] [Indexed: 12/05/2022] Open
Abstract
Chemotaxis, the directed motion of a cell toward a chemical source, plays a key role in many essential biological processes. Here, we derive a statistical model that quantitatively describes the chemotactic motion of eukaryotic cells in a chemical gradient. Our model is based on observations of the chemotactic motion of the social ameba Dictyostelium discoideum, a model organism for eukaryotic chemotaxis. A large number of cell trajectories in stationary, linear chemoattractant gradients is measured, using microfluidic tools in combination with automated cell tracking. We describe the directional motion as the interplay between deterministic and stochastic contributions based on a Langevin equation. The functional form of this equation is directly extracted from experimental data by angle-resolved conditional averages. It contains quadratic deterministic damping and multiplicative noise. In the presence of an external gradient, the deterministic part shows a clear angular dependence that takes the form of a force pointing in gradient direction. With increasing gradient steepness, this force passes through a maximum that coincides with maxima in both speed and directionality of the cells. The stochastic part, on the other hand, does not depend on the orientation of the directional cue and remains independent of the gradient magnitude. Numerical simulations of our probabilistic model yield quantitative agreement with the experimental distribution functions. Thus our model captures well the dynamics of chemotactic cells and can serve to quantify differences and similarities of different chemotactic eukaryotes. Finally, on the basis of our model, we can characterize the heterogeneity within a population of chemotactic cells.
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Affiliation(s)
- Gabriel Amselem
- Max Planck Institute for Dynamics and Self-Organization, Göttingen, Germany
- School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts, United States of America
| | - Matthias Theves
- Max Planck Institute for Dynamics and Self-Organization, Göttingen, Germany
- Institute of Physics and Astronomy, University of Potsdam, Potsdam, Germany
| | - Albert Bae
- Max Planck Institute for Dynamics and Self-Organization, Göttingen, Germany
- Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, New York, United States of America
| | - Eberhard Bodenschatz
- Max Planck Institute for Dynamics and Self-Organization, Göttingen, Germany
- Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, New York, United States of America
- Institute for Nonlinear Dynamics, University of Göttingen, Göttingen, Germany
| | - Carsten Beta
- Max Planck Institute for Dynamics and Self-Organization, Göttingen, Germany
- Institute of Physics and Astronomy, University of Potsdam, Potsdam, Germany
- * E-mail:
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Inoue S, Imamura M, Hirano Y, Tabata Y. Adhesion and Proliferation of Human Adipo-Stromal Cells for Two- or Three-Dimensional Poly(ethylene terephthalate) Substrates with or without RGD Immobilization. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 20:721-36. [DOI: 10.1163/156856209x426600] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Sachiko Inoue
- a Institute for Frontier Medical Sciences, Kyoto University, 53 Kawara-cho Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Masaaki Imamura
- b Institute for Frontier Medical Sciences, Kyoto University, 53 Kawara-cho Shogoin, Sakyo-ku, Kyoto 606-8507, Japan; Department of Urology, Graduate School of Medicine, Kyoto University, 54 Kawara-cho Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Yoshiaki Hirano
- c Faculty of Engineering, Osaka Institute of Technology, 5-16-1 Omiya, Asahi-ku, Osaka 535-8585, Japan
| | - Yasuhiko Tabata
- d Institute for Frontier Medical Sciences, Kyoto University, 53 Kawara-cho Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
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