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Tang J, Chen X, Shi H, Zhang M, Zhou Z, Zhang C, Ke T, Kong D, Li C. Prebiotic inulin nanocoating for pancreatic islet surface engineering. Biomater Sci 2023; 11:1470-1485. [PMID: 36602201 DOI: 10.1039/d2bm01009g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Pancreatic islet surface engineering has been proposed as an "easy-to-adopt" approach to enhance post-transplantation islet engraftment for treatment against diabetes. Inulin is an FDA-approved dietary prebiotic with reported anti-diabetic, anti-inflammatory, anti-hypoxic and pro-angiogenic properties. We therefore assessed whether inulin would be a viable option for islet surface engineering. Inulin was oxidized to generate inulin-CHO, which would bind to the cell membrane via covalent bond formation between -CHO and -NH2 across the islet cell membrane. In vitro assessments demonstrated enhanced islet viability and better glucose-induced insulin secretion from inulin-coated (5 mg mL-1) islets, which was accompanied by enhanced revascularization, shown as significantly enhanced tube formation and branching of islet endothelial MS1 cells following co-culture with inulin-coated islets. Reduction of cytokine-induced cell death was also observed from inulin-coated islets following exposure to pro-inflammatory cytokine LPS. LPS-induced ROS production was significantly dampened by 44% in inulin-coated islets when compared to controls. RNA-seq analysis of inulin-coated and control islets identified expression alterations of genes involved in islet function, vascular formation and immune regulation, supporting the positive impact of inulin on islet preservation. In vivo examination using streptozotocin (STZ)-induced hyperglycemic mice further showed moderately better maintained plasma glucose levels in mice received transplantation of inulin-coated islets, attributable to ameliorated CD45+ immune cell infiltration and improved in vivo graft vascularization. We therefore propose islet surface engineering with inulin as safe and beneficial, and further assessment is required to verify its applicability in clinical islet transplantation.
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Affiliation(s)
- Jianghai Tang
- Tianjin Key Laboratory of Biomedical Materials, Biomedical Barriers Research Center, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300192, China.
| | - Xuanjin Chen
- Tianjin Key Laboratory of Biomedical Materials, Biomedical Barriers Research Center, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300192, China.
| | - Hang Shi
- Tianjin Key Laboratory of Biomedical Materials, Biomedical Barriers Research Center, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300192, China.
| | - Mingming Zhang
- Tianjin Key Laboratory of Biomedical Materials, Biomedical Barriers Research Center, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300192, China.
| | - Zhimin Zhou
- Tianjin Key Laboratory of Biomedical Materials, Biomedical Barriers Research Center, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300192, China.
| | - Chuangnian Zhang
- Tianjin Key Laboratory of Biomedical Materials, Biomedical Barriers Research Center, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300192, China.
| | - Tingyu Ke
- Department of Endocrinology, The Second Affiliated Hospital of Kunming Medical University, Yunnan 650101, China
| | - Deling Kong
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Collaborative Innovation Centre of Chemical Science and Engineering, and National Institute of Functional Materials, Nankai University, Tianjin 300071, China
| | - Chen Li
- Tianjin Key Laboratory of Biomedical Materials, Biomedical Barriers Research Center, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300192, China.
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Kumari P, Bowmik S, Paul SK, Biswas B, Banerjee SK, Murty US, Ravichandiran V, Mohan U. Sortase A: A chemoenzymatic approach for the labeling of cell surfaces. Biotechnol Bioeng 2021; 118:4577-4589. [PMID: 34491580 DOI: 10.1002/bit.27935] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 06/20/2021] [Accepted: 08/27/2021] [Indexed: 01/31/2023]
Abstract
Sortase A, a transpeptidase enzyme is present in many Gram-positive bacteria and helps in the recruitment of the cell surface proteins. Over the last two decades, Sortase A has become an attractive tool for performing in vivo and in vitro ligations. Sortase A-mediated ligation has continuously been used for its specificity, robustness, and highly efficient nature. These properties make it a popular choice among protein engineers as well as researchers from different fields. In this review, we give an overview of Sortase A-mediated ligation of various molecules on the cell surfaces, which can have diverse applications in interdisciplinary fields.
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Affiliation(s)
- Poonam Kumari
- Department of Biotechnology, National Institute of Pharmaceutical Education & Research (NIPER), Guwahati, Assam, India
| | - Sujoy Bowmik
- Department of Biotechnology, National Institute of Pharmaceutical Education & Research (NIPER), Guwahati, Assam, India
| | - Sudipto Kumar Paul
- Department of Biotechnology, National Institute of Pharmaceutical Education & Research (NIPER), Guwahati, Assam, India
| | - Bidisha Biswas
- Department of Biotechnology, National Institute of Pharmaceutical Education & Research (NIPER), Guwahati, Assam, India
| | - Sanjay K Banerjee
- Department of Biotechnology, National Institute of Pharmaceutical Education & Research (NIPER), Guwahati, Assam, India
| | | | - Velayutham Ravichandiran
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education & Research (NIPER), Kolkata, West Bengal, India
| | - Utpal Mohan
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education & Research (NIPER), Kolkata, West Bengal, India
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3
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Vaske B, Schaube M, Meiners F, Ross JH, Christoffers J, Wittstock G. Modification and Patterning of Self‐Assembled Monolayers Using Electrogenerated Etchants and Homogeneous Scavenging Reactions in a Scanning Electrochemical Microscope. ChemElectroChem 2021. [DOI: 10.1002/celc.202100718] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Britta Vaske
- Institute of Chemistry, School of Mathematics and Natural Sciences Carl von Ossietzky University of Oldenburg 2 6111 Oldenburg Germany
| | - Maximilian Schaube
- Institute of Chemistry, School of Mathematics and Natural Sciences Carl von Ossietzky University of Oldenburg 2 6111 Oldenburg Germany
| | - Frank Meiners
- Institute of Chemistry, School of Mathematics and Natural Sciences Carl von Ossietzky University of Oldenburg 2 6111 Oldenburg Germany
| | - Jan Henning Ross
- Institute of Chemistry, School of Mathematics and Natural Sciences Carl von Ossietzky University of Oldenburg 2 6111 Oldenburg Germany
| | - Jens Christoffers
- Institute of Chemistry, School of Mathematics and Natural Sciences Carl von Ossietzky University of Oldenburg 2 6111 Oldenburg Germany
| | - Gunther Wittstock
- Institute of Chemistry, School of Mathematics and Natural Sciences Carl von Ossietzky University of Oldenburg 2 6111 Oldenburg Germany
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4
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Higuchi Y, Takafuji Y. [Controlling Cell Dynamics by Cell-surface Modification]. YAKUGAKU ZASSHI 2021; 141:661-665. [PMID: 33952748 DOI: 10.1248/yakushi.20-00219-6] [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: 11/22/2022]
Abstract
Although the concept of a drug delivery system (DDS) is usually applied to conventional drug therapy, it is also important for cell-based therapy. The surface manipulation of living cells represents a powerful tool for controlling cell behaviors in the body, such as enhancement of cell-cell interactions, targeted delivery of cells, and protection from immunological rejection. Functional groups, including amines, thiols, and carbonyls, offer excellent opportunities for chemical modification through the formation of covalent bonds with exogenous molecules. Non-natural reactive groups introduced by metabolic labeling were recently utilized for targeted chemical modification. On the other hand, noncovalent strategies are also available; two major examples are electrostatic interaction with a negative charge on the cell surface and hydrophobic insertion or interaction with the cell membrane. In this study, we analyzed factors affecting cell surface modifications using PEG-lipid and succeeded in enhancing the efficacy of modification by cyclodextrin. Then, mesenchymal stem cells (MSCs), whose therapeutic effect has been demonstrated at the clinical stage and which have been clinically used as a drug, were decorated with PEG-lipid conjugates having a targeted ligand such as peptide or scFv, which are recognized by ICAM1. The peptide or scFv decoration enhanced the cell adhesion of MSCs on cytokine treated-endothelial cells. This technique will prompt the targeted delivery of MSCs to intended therapy sites, and underscores the promise of cell surface engineering as a tool for improving cell-based therapy.
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Affiliation(s)
- Yuriko Higuchi
- Graduate School of Pharmaceutical Sciences, Kyoto University
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5
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Biomaterials for Stem Cell Therapy for Cardiac Disease. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018. [PMID: 30471033 DOI: 10.1007/978-981-13-0445-3_11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register]
Abstract
Myocardial Infarction (MI) in cardiac disease is the result of heart muscle losses due to a wide range of factors. Cardiac muscle failure is a crucial condition that provokes life-threatening outcomes. Heretofore, regeneration therapies in MI have used stem-cell-based therapy instantly after a myocardial injury to prevent the disease process and tissue malfunction. Despite the therapeutic utility of stem-cell-based regenerative therapy, barriers to successful treatment have been addressed. In this chapter, we illustrate a variety of emerging biomaterial strategies for enhancing the function of therapeutic stem cells, such as cell surface modification to synthetically endowing stem cells with new characteristics and hydrogels with its biological and mechanical properties. These investments offer a potential accompaniment to traditional stem-cell-based therapies for enhancing the efficacy of stem cell therapy to design properly activating cardiac tissues.
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Yang J, Lou S, Kong D, Li C. Surface Engineering of Pancreatic Islets with a Heparinized StarPEG Nanocoating. J Vis Exp 2018:56879. [PMID: 29985314 PMCID: PMC6101986 DOI: 10.3791/56879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Cell surface engineering can protect implanted cells from host immune attack. It can also reshape cellular landscape to improve graft function and survival post-transplantation. This protocol aims to achieve surface engineering of pancreatic islets using an ultrathin heparin-incorporated starPEG (Hep-PEG) nanocoating. To generate the Hep-PEG nanocoating for pancreatic islet surface engineering, heparin succinimidyl succinate (Heparin-NHS) was first synthesized by modification of its carboxylate groups using N-(3-dimethylamino propyl)-N'-ethyl carbodiimide hydrochloride (EDC) and N-hydroxysuccinimide (NHS). The Hep-PEG mixture was then formed by crosslinking of the amino end-functionalized eight-armed starPEG (starPEG-(NH2)8) and Heparin-NHS. For islet surface coating, mouse islets were isolated via collagenase digestion and gradient purification using Histopaque. Isolated islets were then treated with ice cold Hep-PEG solution for 10 min to allow covalent binding between NHS and the amine groups of islet cell membrane. Nanocoating with the Hep-PEG incurs minimal alteration to islet size and volume and heparinization of the islets with Hep-PEG may also reduce instant blood-mediated inflammatory reaction during islet transplantation. This "easy-to-adopt" approach is mild enough for surface engineering of living cells without compromising cell viability. Considering that heparin has shown binding affinity to multiple cytokines, the Hep-PEG nanocoating also provides an open platform that enables incorporation of unlimited functional biological mediators and multi-layered surfaces for living cell surface bioengineering.
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Affiliation(s)
- Jingyi Yang
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science & Peking Union Medical College
| | - Shaofeng Lou
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science & Peking Union Medical College
| | - Deling Kong
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science & Peking Union Medical College
| | - Chen Li
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science & Peking Union Medical College;
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Lou S, Zhang X, Zhang J, Deng J, Kong D, Li C. Pancreatic islet surface bioengineering with a heparin-incorporated starPEG nanofilm. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 78:24-31. [PMID: 28575981 DOI: 10.1016/j.msec.2017.03.295] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 03/28/2017] [Accepted: 03/31/2017] [Indexed: 01/06/2023]
Abstract
Cell surface engineering could protect implanted cells from host immune rejections while modify the cellular landscape for better post-transplantation graft function and survival. Islet transplantation is considered the most promising therapeutic option with the potential to cure diabetes. Current approach to improve clinical efficacy of pancreatic islet transplantation is alginate encapsulation. However, disappointing outcomes have been reported in clinical trials due to larger islet size resulted by encapsulation and alginate-elicited host immune responses. We have developed an ultrathin nanofilm of starPEG with incorporated heparin (Hep-PEG) that binds covalently to the amine groups of islet surface membrane via its N-hydroxysuccinimide groups. The Hep-PEG nanocoating elicited minimal alteration on islet volume in culture. Hep-PEG-coated islets exhibited robust islet viability accompanied by uncompromised islet insulin secretory function. Instant blood-mediated inflammatory reaction was also reduced by Hep-PEG islet coating, accompanied by enhanced intra-islet revascularization. In addition, despite its semi-permeability, Hep-PEG islet coating promoted the survival of islets exposed to pro-inflammatory cytokines. Considering that inflammation and hypoxia are primary causes of immediate cell loss for cell therapy, the Hep-PEG nanofilm represents a viable approach for cell surface engineering which would improve the clinical outcome of cell therapies.
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Affiliation(s)
- Shaofeng Lou
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Xiuyuan Zhang
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science& Peking Union Medical College, Tianjin 300192, China
| | - Jimin Zhang
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Juan Deng
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science& Peking Union Medical College, Tianjin 300192, China
| | - Deling Kong
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China; Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science& Peking Union Medical College, Tianjin 300192, China.
| | - Chen Li
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science& Peking Union Medical College, Tianjin 300192, China.
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Custódio CA, Mano JF. Cell surface engineering to control cellular interactions. CHEMNANOMAT : CHEMISTRY OF NANOMATERIALS FOR ENERGY, BIOLOGY AND MORE 2016; 2:376-384. [PMID: 30842920 PMCID: PMC6398572 DOI: 10.1002/cnma.201600047] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Cell surface composition determines all interactions of the cell with is environment, thus cell functions such as adhesion, migration and cell-cell interactions are likely to be controlled by engineering and manipulating cell membrane. Cell membranes present a rich repertoire of molecules, therefore a versatile ground for modification. However the complex and dynamic nature of the cell surface is also a major challenge for cell surface engineering that should also involve strategies compatible with cell viability. Cell surface engineering by selective chemical reactions or by the introduction of exogenous targeting ligands can be powerful tools for engineering novel interactions and control cell function. In addition to chemical conjugation and modification of functional groups, ligands of interest to modify the surface of cells include recombinant proteins, liposomes or nanoparticles. Here, we review recent efforts to perform changes to cell surface composition. We focus on the engineering of the cell surface with biological, chemical or physical methods to modulate cell functions and control cell-cell and cell-microenvironment interactions. Potential applications of cell surface engineering are also stated.
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Affiliation(s)
- Catarina A Custódio
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence of Tissue Engineering and Regenerative Medicine, Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco GMR, Portugal
- ICVS/3B's PT Government Associated Laboratory, Braga/Guimarães, Portugal
| | - João F Mano
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence of Tissue Engineering and Regenerative Medicine, Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco GMR, Portugal
- ICVS/3B's PT Government Associated Laboratory, Braga/Guimarães, Portugal
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9
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Soffe R, Baratchi S, Tang SY, Mitchell A, McIntyre P, Khoshmanesh K. Concurrent shear stress and chemical stimulation of mechano-sensitive cells by discontinuous dielectrophoresis. BIOMICROFLUIDICS 2016; 10:024117. [PMID: 27099646 PMCID: PMC4826375 DOI: 10.1063/1.4945309] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Accepted: 03/17/2016] [Indexed: 05/02/2023]
Abstract
Microfluidic platforms enable a variety of physical or chemical stimulation of single or multiple cells to be examined and monitored in real-time. To date, intracellular calcium signalling research is, however, predominantly focused on observing the response of cells to a single mode of stimulation; consequently, the sensitising/desensitising of cell responses under concurrent stimuli is not well studied. In this paper, we provide an extended Discontinuous Dielectrophoresis procedure to investigate the sensitising of chemical stimulation, over an extensive range of shear stress, up to 63 dyn/cm(2), which encompasses shear stresses experienced in the arterial and venus systems (10 to 60 dyn/cm(2)). Furthermore, the TRPV4-selective agonist GSK1016790A, a form of chemical stimulation, did not influence the ability of the cells' to remain immobilised under high levels of shear stress; thus, enabling us to investigate shear stress stimulation on agonism. Our experiments revealed that shear stress sensitises GSK1016790A-evoked intracellular calcium signalling of cells in a shear-stimulus dependent manner, as observed through a reduction in the cellular response time and an increase in the pharmacological efficacy. Consequently, suggesting that the role of TRPV4 may be underestimated in endothelial cells-which experience high levels of shear stress. This study highlights the importance of conducting studies at high levels of shear stress. Additionally, our approach will be valuable for examining the effect of high levels of shear on different cell types under different conditions, as presented here for agonist activation.
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Affiliation(s)
- Rebecca Soffe
- School of Engineering, RMIT University , Victoria 3001, Australia
| | - Sara Baratchi
- School of Medical and Biomedical Science, RMIT University , Victoria 3083, Australia
| | - Shi-Yang Tang
- School of Engineering, RMIT University , Victoria 3001, Australia
| | - Arnan Mitchell
- School of Engineering, RMIT University , Victoria 3001, Australia
| | - Peter McIntyre
- School of Medical and Biomedical Science, RMIT University , Victoria 3083, Australia
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10
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Growth and Functionality of Cells Cultured on Conducting and Semi-Conducting Surfaces Modified with Self-Assembled Monolayers (SAMs). COATINGS 2016. [DOI: 10.3390/coatings6010009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Guo Z, Zhang T, Fang K, Dou J, Zhou N, Ma X, Gu N. The effects of macroporosity and stiffness of poly[(methyl vinyl ether)-alt-(maleic acid)] cross-linked egg white simulations of an aged extracellular matrix on the proliferation of ovarian cancer cells. RSC Adv 2016. [DOI: 10.1039/c6ra05134k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The effects of macroporosity and stiffness of P(MVE-alt-MA) cross-linked EW simulations of an aged ECM on the proliferation of cancer cells.
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Affiliation(s)
- Zhenchao Guo
- State Key Laboratory of Bioelectronics
- Jiangsu Key Laboratory for Biomaterials and Devices
- School of Biological Science and Medical Engineering & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Southeast University
- Nanjing 210096
| | - Tianzhu Zhang
- State Key Laboratory of Bioelectronics
- Jiangsu Key Laboratory for Biomaterials and Devices
- School of Biological Science and Medical Engineering & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Southeast University
- Nanjing 210096
| | - Kun Fang
- State Key Laboratory of Bioelectronics
- Jiangsu Key Laboratory for Biomaterials and Devices
- School of Biological Science and Medical Engineering & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Southeast University
- Nanjing 210096
| | - Jun Dou
- Medical School
- Southeast University
- Nanjing 210009
- China
| | - Naizhen Zhou
- State Key Laboratory of Bioelectronics
- Jiangsu Key Laboratory for Biomaterials and Devices
- School of Biological Science and Medical Engineering & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Southeast University
- Nanjing 210096
| | - Xiaoe Ma
- State Key Laboratory of Bioelectronics
- Jiangsu Key Laboratory for Biomaterials and Devices
- School of Biological Science and Medical Engineering & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Southeast University
- Nanjing 210096
| | - Ning Gu
- State Key Laboratory of Bioelectronics
- Jiangsu Key Laboratory for Biomaterials and Devices
- School of Biological Science and Medical Engineering & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Southeast University
- Nanjing 210096
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Wang Q, Cheng H, Peng H, Zhou H, Li PY, Langer R. Non-genetic engineering of cells for drug delivery and cell-based therapy. Adv Drug Deliv Rev 2015; 91:125-40. [PMID: 25543006 DOI: 10.1016/j.addr.2014.12.003] [Citation(s) in RCA: 159] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Revised: 12/04/2014] [Accepted: 12/18/2014] [Indexed: 12/13/2022]
Abstract
Cell-based therapy is a promising modality to address many unmet medical needs. In addition to genetic engineering, material-based, biochemical, and physical science-based approaches have emerged as novel approaches to modify cells. Non-genetic engineering of cells has been applied in delivering therapeutics to tissues, homing of cells to the bone marrow or inflammatory tissues, cancer imaging, immunotherapy, and remotely controlling cellular functions. This new strategy has unique advantages in disease therapy and is complementary to existing gene-based cell engineering approaches. A better understanding of cellular systems and different engineering methods will allow us to better exploit engineered cells in biomedicine. Here, we review non-genetic cell engineering techniques and applications of engineered cells, discuss the pros and cons of different methods, and provide our perspectives on future research directions.
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Soffe R, Baratchi S, Tang SY, Nasabi M, McIntyre P, Mitchell A, Khoshmanesh K. Analysing calcium signalling of cells under high shear flows using discontinuous dielectrophoresis. Sci Rep 2015. [PMID: 26202725 PMCID: PMC4648442 DOI: 10.1038/srep11973] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Immobilisation of cells is an important feature of many cellular assays, as it enables the physical/chemical stimulation of cells; whilst, monitoring cellular processes using microscopic techniques. Current approaches for immobilising cells, however, are hampered by time-consuming processes, the need for specific antibodies or coatings, and adverse effects on cell integrity. Here, we present a dielectrophoresis-based approach for the robust immobilisation of cells, and analysis of their responses under high shear flows. This approach is quick and label-free, and more importantly, minimises the adverse effects of electric field on the cell integrity, by activating the field for a short duration of 120 s, just long enough to immobilise the cells, after which cell culture media (such as HEPES) is flushed through the platform. In optimal conditions, at least 90% of the cells remained stably immobilised, when exposed to a shear stress of 63 dyn/cm2. This approach was used to examine the shear-induced calcium signalling of HEK-293 cells expressing a mechanosensitive ion channel, transient receptor potential vaniloid type 4 (TRPV4), when exposed to the full physiological range of shear stress.
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Affiliation(s)
- Rebecca Soffe
- School of Electrical and Computer Engineering, RMIT University, Melbourne, Australia
| | - Sara Baratchi
- Health Innovations Research Institute and School of Medical Sciences, RMIT University, Melbourne, Australia
| | - Shi-Yang Tang
- School of Electrical and Computer Engineering, RMIT University, Melbourne, Australia
| | - Mahyar Nasabi
- School of Electrical and Computer Engineering, RMIT University, Melbourne, Australia
| | - Peter McIntyre
- Health Innovations Research Institute and School of Medical Sciences, RMIT University, Melbourne, Australia
| | - Arnan Mitchell
- School of Electrical and Computer Engineering, RMIT University, Melbourne, Australia
| | - Khashayar Khoshmanesh
- School of Electrical and Computer Engineering, RMIT University, Melbourne, Australia
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14
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Jang H, Kim DE, Min DH. Self-assembled Monolayer Mediated Surface Environment Modification of Poly(vinylpyrrolidone)-Coated Hollow Au-Ag Nanoshells for Enhanced Loading of Hydrophobic Drug and Efficient Multimodal Therapy. ACS APPLIED MATERIALS & INTERFACES 2015; 7:12789-12796. [PMID: 25996449 DOI: 10.1021/acsami.5b01903] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Hollow Au-Ag bimetallic nanoshell possessing hydrophobic interior space and hydrophilic exterior surface was prepared and its application as a chemo-thermo-gene therapeutic agent based on its high payload of multiple drugs having different water solubility was demonstrated. The multifunctional drug delivery system is based on the hydrophobic interior created by the self-assembled monolayer (SAM) of hexanethiol onto the inner surface of the hollow metallic nanoshells whereas the outer surface was mostly coated by hydrophilic biocompatible polymer. The nanoshells having surface environment modified by hexanethiol SAMs provided high capacity both for hydrophilic DNAzyme (Dz) to induce gene silencing and for hydrophobic SN38 (7-ethyl-10-hydroxycamptothecin), anticancer drug. The release of the loaded Dz and SN38 was independently triggered by an acidic environment and by photothermal temperature elevation upon irradiation, respectively. The chemo-thermo-gene multitherapy based on the present nanoshells having modified surface environment showed high efficacy in quantitative cell-based assays using Huh7 human liver cell containing hepatitis C viral NS3 gene replicon RNA.
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Affiliation(s)
- Hongje Jang
- †Department of Chemistry, Center for RNA Research, Institute for Basic Sciences (IBS), Seoul National University, Seoul 151-747, Republic of Korea
| | - Dong-Eun Kim
- ‡Department of Bioscience and Biotechnology, Konkuk University, Seoul 143-701, Republic of Korea
| | - Dal-Hee Min
- †Department of Chemistry, Center for RNA Research, Institute for Basic Sciences (IBS), Seoul National University, Seoul 151-747, Republic of Korea
- §Lemonex Inc., Seoul 151-742, Republic of Korea
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15
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Sobers CJ, Wood SE, Mrksich M. A gene expression-based comparison of cell adhesion to extracellular matrix and RGD-terminated monolayers. Biomaterials 2015; 52:385-94. [PMID: 25818445 PMCID: PMC4379455 DOI: 10.1016/j.biomaterials.2015.02.045] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Revised: 02/03/2015] [Accepted: 02/06/2015] [Indexed: 01/08/2023]
Abstract
This work uses global gene expression analysis to compare the extent to which model substrates presenting peptide adhesion motifs mimic the use of conventional extracellular matrix protein coated substrates for cell culture. We compared the transcriptional activities of genes in cells that were cultured on matrix-coated substrates with those cultured on self-assembled monolayers presenting either a linear or cyclic RGD peptide. Cells adherent to cyclic RGD were most similar to those cultured on native ECM, while cells cultured on monolayers presenting the linear RGD peptide had transcriptional activities that were more similar to cells cultured on the uncoated substrates. This study suggests that biomaterials presenting the cyclic RGD peptide are substantially better mimics of extracellular matrix than are uncoated materials or materials presenting the common linear RGD peptide.
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Affiliation(s)
- Courtney J Sobers
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA; Department of Cell and Molecular Biology, Northwestern University, Chicago, IL 60611, USA
| | - Sarah E Wood
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Milan Mrksich
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA; Department of Cell and Molecular Biology, Northwestern University, Chicago, IL 60611, USA; Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA.
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16
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Zhao D, Lei L, Wang S, Nie H. Understanding cell homing-based tissue regeneration from the perspective of materials. J Mater Chem B 2015; 3:7319-7333. [DOI: 10.1039/c5tb01188d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The triad of cell homing-based tissue engineering.
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Affiliation(s)
- Dapeng Zhao
- Department of Biomedical Engineering
- College of Biology
- Hunan University
- Changsha 410082
- China
| | - Lei Lei
- Department of Orthodontics
- Xiangya Stomatological Hospital
- Central South University
- Changsha 410008
- China
| | - Shuo Wang
- Department of Biomedical Engineering
- College of Biology
- Hunan University
- Changsha 410082
- China
| | - Hemin Nie
- Department of Biomedical Engineering
- College of Biology
- Hunan University
- Changsha 410082
- China
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17
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Koepsel JT, Murphy WL. Patterned self-assembled monolayers: efficient, chemically defined tools for cell biology. Chembiochem 2012; 13:1717-24. [PMID: 22807236 PMCID: PMC3995495 DOI: 10.1002/cbic.201200226] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2012] [Indexed: 12/26/2022]
Abstract
Self-assembled monolayers (SAMs) of alkanethiolates on gold can be used to carefully probe immobilized biomolecule interactions with cell-surface receptors. However, due to a lack of experimental throughput associated with labor-intensive production, specialized fabrication apparatus, and other practical challenges, alkanethiolate SAMs have not had widespread use by biological researchers. In this Minireview, we investigate a range of techniques that could enhance the throughput of SAM-based approaches by patterning substrates with arrays of different conditions. Here we highlight microfluidic, photochemical, localized removal, and backfilling techniques to locally pattern SAM substrates with biomolecules and also describe how these approaches have been applied in SAM-based screening systems. Furthermore we provide perspectives on several crucial barriers that need to be overcome to enable widespread use of SAM chemistry in biological applications.
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Affiliation(s)
- Justin T. Koepsel
- Department of Biomedical Engineering, University of Wisconsin, 1550 Engineering Drive, Engineering Centers Building, Madison, WI 53706 (USA)
| | - William L. Murphy
- Department of Biomedical Engineering, University of Wisconsin, 1550 Engineering Drive, Engineering Centers Building, Madison, WI 53706 (USA)
- Department of Orthopedics and Rehabilitation, University of Wisconsin, 1111 Highland Avenue, Wisconsin Institutes for Medical Research, Madison, WI 53705 (USA)
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18
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Kadowaki K, Matsusaki M, Akashi M. Control of Cellular Inflammation by Layer-by-layer Nanofilms through Different Driving Forces. CHEM LETT 2012. [DOI: 10.1246/cl.2012.523] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Koji Kadowaki
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University
| | - Michiya Matsusaki
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University
- Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency (JST)
| | - Mitsuru Akashi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University
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19
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Selden NS, Todhunter ME, Jee NY, Liu JS, Broaders KE, Gartner ZJ. Chemically programmed cell adhesion with membrane-anchored oligonucleotides. J Am Chem Soc 2012; 134:765-8. [PMID: 22176556 PMCID: PMC3280587 DOI: 10.1021/ja2080949] [Citation(s) in RCA: 115] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Cell adhesion organizes the structures of tissues and mediates their mechanical, chemical, and electrical integration with their surroundings. Here, we describe a strategy for chemically controlling cell adhesion using membrane-anchored single-stranded DNA oligonucleotides. The reagents are pure chemical species prepared from phosphoramidites synthesized in a single chemical step from commercially available starting materials. The approach enables rapid, efficient, and tunable cell adhesion, independent of proteins or glycans, by facilitating interactions with complementary labeled surfaces or other cells. We demonstrate the utility of this approach by imaging drug-induced changes in the membrane dynamics of non-adherent human cells that are chemically immobilized on a passivated glass surface.
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Affiliation(s)
- Nicholas S Selden
- Department of Pharmaceutical Chemistry, University of California, San Francisco, 600 16th Street Box 2280, San Francisco, California 94158, USA
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20
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Developing a self-assembled monolayer microarray to study stem cell differentiation. J Colloid Interface Sci 2011; 360:325-30. [DOI: 10.1016/j.jcis.2011.04.098] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2010] [Revised: 04/26/2011] [Accepted: 04/27/2011] [Indexed: 01/17/2023]
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21
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Stephan MT, Irvine DJ. Enhancing Cell therapies from the Outside In: Cell Surface Engineering Using Synthetic Nanomaterials. NANO TODAY 2011; 6:309-325. [PMID: 21826117 PMCID: PMC3148657 DOI: 10.1016/j.nantod.2011.04.001] [Citation(s) in RCA: 178] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Therapeutic treatments based on the injection of living cells are in clinical use and preclinical development for diseases ranging from cancer to cardiovascular disease to diabetes. To enhance the function of therapeutic cells, a variety of chemical and materials science strategies are being developed that engineer the surface of therapeutic cells with new molecules, artificial receptors, and multifunctional nanomaterials, synthetically endowing donor cells with new properties and functions. These approaches offer a powerful complement to traditional genetic engineering strategies for enhancing the function of living cells.
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Affiliation(s)
- Matthias T. Stephan
- Department of Material Science and Engineering, Massachusetts Institute of Technology (MIT), Cambridge, Massachusetts, USA
- Koch Institute for Integrative Cancer Research, MIT, Cambridge, Massachusetts, USA
| | - Darrell J. Irvine
- Department of Material Science and Engineering, Massachusetts Institute of Technology (MIT), Cambridge, Massachusetts, USA
- Koch Institute for Integrative Cancer Research, MIT, Cambridge, Massachusetts, USA
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
- Ragon Institute of Massachusetts General Hospital, MIT and Harvard University, Boston, Massachusetts, USA
- Howard Hughes Medical Institute, Chevy Chase, Maryland, USA
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22
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Petty RT, Mrksich M. De novo motif for kinase mediated signaling across the cell membrane. Integr Biol (Camb) 2011; 3:816-22. [DOI: 10.1039/c1ib00009h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Lindström S, Andersson-Svahn H. Overview of single-cell analyses: microdevices and applications. LAB ON A CHIP 2010; 10:3363-72. [PMID: 20967379 DOI: 10.1039/c0lc00150c] [Citation(s) in RCA: 169] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Numerous microdevices developed for single-cell analyses have been presented in the last decades. Practical usefulness in biological and clinical settings has become an important focus during the development and implementation of new structures and assays. Single-cell analysis has been applied in intracellular research, gene- and protein content and expression, PCR, cell culture and division, clone formation, differentiation, morphology, lysis, separation, sorting, cytotoxicity and fluorescence screens, antibody secretion, etc. as discussed here along with brief descriptions of the technical devices used for the studies, e.g. well-, trap-, pattern-, and droplet-based structures. This review aims to serve as an overview of available techniques for single-cell analysis by describing the different biological single-cell assays that have been performed to date and how each individual application requires a particular device design.
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Affiliation(s)
- Sara Lindström
- Department of Cell and Molecular Biology, Karolinska Institute, Box 285, SE-171 77 Stockholm, Sweden.
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24
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Sánchez-Cortés J, Bähr K, Mrksich M. Cell adhesion to unnatural ligands mediated by a bifunctional protein. J Am Chem Soc 2010; 132:9733-7. [PMID: 20583796 PMCID: PMC2907716 DOI: 10.1021/ja1016188] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
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This paper describes a molecular strategy to restore adhesion of cells to surfaces that otherwise do not present ligands that can mediate adhesion. The approach is based on a carbonic anhydrase fusion protein that binds benzenesulfonamides and that also includes the RGD peptide motif that can bind to cell-surface integrin adhesion receptors. In this way, the fusion protein can bind to a monolayer that presents the benzenesulfonamide ligand, thereby positioning the RGD peptide at the surface, where it can mediate the adhesion and spreading of cells. This strategy may provide a general method for promoting the adhesion of cells to non-natural surfaces or to defective biological matrices.
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Affiliation(s)
- Juan Sánchez-Cortés
- Department of Chemistry and Howard Hughes Medical Institute, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, USA
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25
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Matthews BD, Thodeti CK, Tytell JD, Mammoto A, Overby DR, Ingber DE. Ultra-rapid activation of TRPV4 ion channels by mechanical forces applied to cell surface beta1 integrins. Integr Biol (Camb) 2010; 2:435-42. [PMID: 20725677 DOI: 10.1039/c0ib00034e] [Citation(s) in RCA: 182] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Integrins are ubiquitous transmembrane mechanoreceptors that elicit changes in intracellular biochemistry in response to mechanical force application, but these alterations generally proceed over seconds to minutes. Stress-sensitive ion channels represent another class of mechanoreceptors that are activated much more rapidly (within msec), and recent findings suggest that calcium influx through Transient Receptor Potential Vanilloid-4 (TRPV4) channels expressed in the plasma membrane of bovine capillary endothelial cells is required for mechanical strain-induced changes in focal adhesion assembly, cell orientation and directional migration. However, whether mechanically stretching a cell's extracellular matrix (ECM) adhesions might directly activate cell surface ion channels remains unknown. Here we show that forces applied to beta1 integrins result in ultra-rapid (within 4 msec) activation of calcium influx through TRPV4 channels. The TRPV4 channels were specifically activated by mechanical strain in the cytoskeletal backbone of the focal adhesion, and not by deformation of the lipid bilayer or submembranous cortical cytoskeleton alone. This early-immediate calcium signaling response required the distal region of the beta1 integrin cytoplasmic tail that contains a binding site for the integrin-associated transmembrane CD98 protein, and external force application to CD98 within focal adhesions activated the same ultra-rapid calcium signaling response. Local direct strain-dependent activation of TRPV4 channels mediated by force transfer from integrins and CD98 may therefore enable compartmentalization of calcium signaling within focal adhesions that is critical for mechanical control of many cell behaviors that underlie cell and tissue development.
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Affiliation(s)
- Benjamin D Matthews
- Department of Medicine, Harvard Medical School and Children's Hospital, Boston, MA 02115, USA
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26
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Protein adhesion and cell response on atmospheric pressure dielectric barrier discharge-modified polymer surfaces. Acta Biomater 2010; 6:2609-20. [PMID: 20096386 DOI: 10.1016/j.actbio.2010.01.015] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2009] [Revised: 10/30/2009] [Accepted: 01/11/2010] [Indexed: 11/20/2022]
Abstract
Gaseous plasma discharges are one of the most common means to modify the surface of a polymer without affecting its bulk properties. However, this normally requires the materials to be processed in vacuo to create the active species required to permanently modify the surface chemistry. The ability to invoke such changes under normal ambient conditions in a cost-effective manner has much to offer to enhance the response of medical implants in vivo. It is therefore important to accurately determine the nature and scale of the effects derived from this technology. This paper reports on the modification of poly(styrene) (PS) and poly(methyl methacrylate) (PMMA) using atmospheric pressure plasma processing via exposure to a dielectric barrier discharge (DBD). The changes in surface chemistry and topography after DBD treatment were characterised using water contact angle, X-ray photoelectron spectroscopy (XPS) and atomic force microscopy. A marked increase in the surface oxygen concentration was observed for both PMMA and PS. An increase in surface roughness was observed for PMMA, but not for PS. These changes were found to result in an increase in surface wettability for both polymers. Adsorption of albumin (Alb) onto these substrates was studied using XPS and quartz crystal microbalance with dissipation (QCM-D). The rate of adsorption of Alb onto pristine PMMA and PS was faster than that on the DBD-treated polymers. XPS indicated that a similar concentration of Alb occurred on both of the treated surfaces. Deconvolution of the C1s XPS spectra showed that Alb is adsorbed differently on pristine (hydrophobic) compared to DBD-treated (hydrophilic) surfaces, with more polar functional groups oriented towards the upper surface in the latter case. The QCM-D data corroborates this finding, in that a more viscoelastic layer of Alb was formed on the DBD-treated surfaces relative to that on the pristine surfaces. It was also found that Alb was more easily replaced by larger proteins from foetal bovine serum on the DBD-treated surfaces. The viability of human lens epithelial cells on both of the DBD-treated polymer surface was significantly (P<0.05) greater than on the respective pristine surfaces. In addition, cells that adhered to the treated polymers exhibited a polygonal morphology with well spread actin stress fibres compared with the contracted shape displayed on the pristine surfaces. The results presented here clearly indicate that DBD surface modification has the capability to influence key protein and cell responses.
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27
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Koepsel JT, Murphy WL. Patterning discrete stem cell culture environments via localized self-assembled monolayer replacement. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:12825-34. [PMID: 19856996 PMCID: PMC2769026 DOI: 10.1021/la901938e] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Self-assembled monolayers (SAMs) of alkanethiolates on gold have become an important tool for probing cell-material interactions. Emerging studies in stem cell biology are particularly reliant on well-defined model substrates, and rapid, highly controllable fabrication methods may be necessary for characterizing the wide array of stem cell-material interactions. Therefore, this study describes a rapid method for creating SAM cell culture substrates with multiple discrete regions of controlled peptide identity and density. The approach uses a NaBH(4) solution to selectively remove regions of bioinert, hydroxyl-terminated oligo(ethylene glycol) alkanethiolate SAM and then locally replace them with mixed SAMs of hydroxyl- and carboxylic acid-terminated oligo(ethylene glycol) alkanethiolates. The cell adhesion peptide Arg-Gly-Asp-Ser-Pro (RGDSP) was then covalently linked to carboxylic acid-terminated mixed SAM regions to create cell adhesive environments within a bioinert background. SAM preparation and peptide immobilization were characterized using polarization modulation-infrared reflection-absorption spectroscopy (PM-IRRAS), as well as assays to monitor conjugation of a fluorescently labeled peptide. This "localized SAM replacement" method was achieved using an array of microchannels, which facilitated rapid and simple processing. Results indicate that immobilized RGDSP promoted spatially localized attachment of human mesenchymal stem cells (hMSCs) within specified regions, while maintaining a stable, bioinert background in serum-containing cell culture conditions for up to 14 days. Cell attachment to patterned regions presenting a range of cell adhesion peptide densities demonstrated that peptide identity and density strongly influence hMSC spreading and focal adhesion density. These substrates contain discrete, well-defined microenvironments for stem cell culture, which could ultimately enable high-throughput screening for the effects of immobilized signals on stem cell phenotype.
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Affiliation(s)
- Justin T. Koepsel
- Department of Biomedical Engineering, University of Wisconsin, Madison, WI 53706
| | - William L. Murphy
- Department of Biomedical Engineering, University of Wisconsin, Madison, WI 53706
- Department of Pharmacology, University of Wisconsin, Madison, WI 53706
- Department of Materials Science and Engineering, University of Wisconsin, Madison, WI 53706
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28
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Sejwal P, Narasimhan SK, Prashar D, Bandyopadhyay D, Luk YY. Selective Immobilization of Peptides Exclusively via N-Terminus Cysteines by Water-Driven Reactions on Surfaces. J Org Chem 2009; 74:6843-6. [DOI: 10.1021/jo901085u] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Preeti Sejwal
- Department of Chemistry, Syracuse Biomaterials Institute, Syracuse University, Syracuse, New York 13244
| | - Sri Kamesh Narasimhan
- Department of Chemistry, Syracuse Biomaterials Institute, Syracuse University, Syracuse, New York 13244
| | - Deepali Prashar
- Department of Chemistry, Syracuse Biomaterials Institute, Syracuse University, Syracuse, New York 13244
| | - Debjyoti Bandyopadhyay
- Department of Chemistry, Syracuse Biomaterials Institute, Syracuse University, Syracuse, New York 13244
| | - Yan-Yeung Luk
- Department of Chemistry, Syracuse Biomaterials Institute, Syracuse University, Syracuse, New York 13244
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29
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Polymer brushes and self-assembled monolayers: Versatile platforms to control cell adhesion to biomaterials (Review). Biointerphases 2009; 4:FA3-16. [DOI: 10.1116/1.3089252] [Citation(s) in RCA: 164] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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30
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Mrksich M. Using self-assembled monolayers to model the extracellular matrix. Acta Biomater 2009; 5:832-41. [PMID: 19249721 PMCID: PMC2771169 DOI: 10.1016/j.actbio.2009.01.016] [Citation(s) in RCA: 121] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2008] [Revised: 01/07/2009] [Accepted: 01/07/2009] [Indexed: 02/07/2023]
Abstract
The extracellular matrix is an insoluble aggregate of large proteins and glycosoaminoglycans that comprises the microenvironment of cells in tissue. The matrix displays a host of ligands that interact with cell-surface receptors to mediate the attachment and spreading of cells and regulate signaling processes. Studies of cell-matrix interactions and downstream signaling processes commonly employ substrates having an adsorbed layer of protein and are challenged by the difficulty in controlling the structure and activity of the immobilized protein. Significant effort has been directed towards the development of model substrates that present adhesion ligands in defined densities, orientations and environments. Among these approaches, self-assembled monolayers of alkanethiolates on gold offer a high level of control over the molecular structure of the surface and are well-suited to studies of cell adhesion. This review describes the design and use of monolayers for applications in cell biology, including the use of monolayers to evaluate the roles of peptide and protein ligands in cell-matrix interactions, the development of methods to pattern ligands on monolayers and applications to cell biology, the development of dynamic monolayers that can switch the activities of ligands presented to an adherent cell, and the rewiring of interactions between a cell and its substrate. These examples illustrate the flexibility inherent to monolayers for applications in cell biology.
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Affiliation(s)
- Milan Mrksich
- Department of Chemistry, Howard Hughes Medical Institute, The University of Chicago, 929 East 57th Street, Chicago, IL 60637, USA.
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31
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Krishnamurthy VM, Kaufman GK, Urbach AR, Gitlin I, Gudiksen KL, Weibel DB, Whitesides GM. Carbonic anhydrase as a model for biophysical and physical-organic studies of proteins and protein-ligand binding. Chem Rev 2008; 108:946-1051. [PMID: 18335973 PMCID: PMC2740730 DOI: 10.1021/cr050262p] [Citation(s) in RCA: 565] [Impact Index Per Article: 35.3] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Vijay M. Krishnamurthy
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138
| | - George K. Kaufman
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138
| | - Adam R. Urbach
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138
| | - Irina Gitlin
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138
| | - Katherine L. Gudiksen
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138
| | - Douglas B. Weibel
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138
| | - George M. Whitesides
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138
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32
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A graftable LDV peptidomimetic: Design, synthesis and application to a blood filtration membrane. Bioorg Med Chem Lett 2008; 18:1084-90. [DOI: 10.1016/j.bmcl.2007.12.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2007] [Accepted: 12/04/2007] [Indexed: 11/23/2022]
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33
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Non-invasive Optical Biosensor for Probing Cell Signaling. SENSORS 2007; 7:2316-2329. [PMID: 28903229 PMCID: PMC3864524 DOI: 10.3390/s7102316] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2007] [Accepted: 10/15/2007] [Indexed: 01/14/2023]
Abstract
Cell signaling mediated through a cellular target is encoded by spatial andtemporal dynamics of downstream signaling networks. The coupling of temporal dynamicswith spatial gradients of signaling activities guides cellular responses upon stimulation.Monitoring the integration of cell signaling in real time, if realized, would provide a newdimension for understanding cell biology and physiology. Optical biosensors includingresonant waveguide grating (RWG) biosensor manifest a physiologically relevant andintegrated cellular response related to dynamic redistribution of cellular matters, thusproviding a non-invasive means for cell signaling study. This paper reviews recentprogresses in biosensor instrumentation, and theoretical considerations and potentialapplications of optical biosensors for whole cell sensing.
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Klapperich C, Kaufman J, Wong J. Controlling and Assessing Cell–Biomaterial Interactions at the Micro- and Nanoscale. Biomaterials 2007. [DOI: 10.1201/9780849378898.ch10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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35
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Voldman J. Engineered systems for the physical manipulation of single cells. Curr Opin Biotechnol 2006; 17:532-7. [PMID: 16889956 DOI: 10.1016/j.copbio.2006.07.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2006] [Revised: 06/02/2006] [Accepted: 07/21/2006] [Indexed: 11/26/2022]
Abstract
Manipulating the physical location of cells is useful both to organize cells in vitro and to separate cells during screening. The quest to manipulate cells on length scales commensurate with their size has led to a host of technologies exploiting optical, chemical, mechanical, electrical, and other phenomena. Researchers interested in organizing cells are gaining the ability to pattern more than two cell types, to create dynamic surfaces, and to pattern cells in the third dimension. In the realm of cell separation for screening, there has been significant progress in miniaturized flow-based optical sorters as well as in sorting following static microscopic observation.
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Affiliation(s)
- Joel Voldman
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Room 36-824, Cambridge, MA 02139, USA.
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36
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Collier JH, Mrksich M. Engineering a biospecific communication pathway between cells and electrodes. Proc Natl Acad Sci U S A 2006; 103:2021-5. [PMID: 16461913 PMCID: PMC1413682 DOI: 10.1073/pnas.0504349103] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Methods for transducing the cellular activities of mammalian cells into measurable electronic signals are important in many biotechnical applications, including biosensors, cell arrays, and other cell-based devices. This manuscript describes an approach for functionally integrating cellular activities and electrical processes in an underlying substrate. The cells are engineered with a cell-surface chimeric receptor that presents the nonmammalian enzyme cutinase. Action of this cell-surface cutinase on enzyme substrate self-assembled monolayers switches a nonelectroactive hydroxyphenyl ester to an electroactive hydroquinone, providing an electrical activity that can be identified with cyclic voltammetry. In this way, cell-surface enzymatic activity is transduced into electronic signals. The development of strategies to directly interface the activities of cells with materials will be important to enabling a broad class of hybrid microsystems that combine living and nonliving components.
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Affiliation(s)
- Joel H. Collier
- Department of Chemistry and Institute for Biophysical Dynamics, University of Chicago, 5735 South Ellis Avenue, Chicago, IL 60637
| | - Milan Mrksich
- Department of Chemistry and Institute for Biophysical Dynamics, University of Chicago, 5735 South Ellis Avenue, Chicago, IL 60637
- To whom correspondence should be addressed. E-mail:
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37
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Chandra RA, Douglas ES, Mathies RA, Bertozzi CR, Francis MB. Programmable Cell Adhesion Encoded by DNA Hybridization. Angew Chem Int Ed Engl 2006. [DOI: 10.1002/ange.200502421] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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38
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Chandra RA, Douglas ES, Mathies RA, Bertozzi CR, Francis MB. Programmable Cell Adhesion Encoded by DNA Hybridization. Angew Chem Int Ed Engl 2006; 45:896-901. [PMID: 16370010 DOI: 10.1002/anie.200502421] [Citation(s) in RCA: 131] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ravi A Chandra
- Department of Chemistry, University of California, Berkeley, California 94720, USA
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39
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Abstract
Harvesting, training, and domesticating living organisms to apply their intrinsic capabilities to desired applications is one of the most fundamental of human accomplishments. Extending this concept to the cellular level requires precise control of the chemical interface between live cells and synthetic materials. One great challenge is to progress from empirically surveying cellular behaviors to the predictive design of synthetic substrates that communicate specific signals to cells. This requires a detailed understanding of cell signaling mechanisms as well as the ability to synthesize hybrid materials that incorporate biological molecules in precisely defined ways. A number of promising advances in the development of synthetic interfaces with cells suggest that the move to predictive design is under way.
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Affiliation(s)
- Jay T Groves
- Department of Chemistry, University of California, Berkeley, USA.
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40
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