1
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Mierke CT. Magnetic tweezers in cell mechanics. Methods Enzymol 2024; 694:321-354. [PMID: 38492957 DOI: 10.1016/bs.mie.2023.12.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2024]
Abstract
The chapter provides an overview of the applications of magnetic tweezers in living cells. It discusses the advantages and disadvantages of magnetic tweezers technology with a focus on individual magnetic tweezers configurations, such as electromagnetic tweezers. Solutions to the disadvantages identified are also outlined. The specific role of magnetic tweezers in the field of mechanobiology, such as mechanosensitivity, mechano-allostery and mechanotransduction are also emphasized. The specific usage of magnetic tweezers in mechanically probing cells via specific cell surface receptors, such as mechanosensitive channels is discussed and why mechanical probing has revealed the opening and closing of the channels. Finally, the future direction of magnetic tweezers is presented.
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Affiliation(s)
- Claudia Tanja Mierke
- Faculty of Physics and Earth System Sciences, Peter Debye Institute for Soft Matter Physics, Biological Physics Division, Leipzig University, Leipzig, Germany.
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2
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Del Sol-Fernández S, Martínez-Vicente P, Gomollón-Zueco P, Castro-Hinojosa C, Gutiérrez L, Fratila RM, Moros M. Magnetogenetics: remote activation of cellular functions triggered by magnetic switches. NANOSCALE 2022; 14:2091-2118. [PMID: 35103278 PMCID: PMC8830762 DOI: 10.1039/d1nr06303k] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 11/13/2021] [Indexed: 05/03/2023]
Abstract
During the last decade, the possibility to remotely control intracellular pathways using physical tools has opened the way to novel and exciting applications, both in basic research and clinical applications. Indeed, the use of physical and non-invasive stimuli such as light, electricity or magnetic fields offers the possibility of manipulating biological processes with spatial and temporal resolution in a remote fashion. The use of magnetic fields is especially appealing for in vivo applications because they can penetrate deep into tissues, as opposed to light. In combination with magnetic actuators they are emerging as a new instrument to precisely manipulate biological functions. This approach, coined as magnetogenetics, provides an exclusive tool to study how cells transform mechanical stimuli into biochemical signalling and offers the possibility of activating intracellular pathways connected to temperature-sensitive proteins. In this review we provide a critical overview of the recent developments in the field of magnetogenetics. We discuss general topics regarding the three main components for magnetic field-based actuation: the magnetic fields, the magnetic actuators and the cellular targets. We first introduce the main approaches in which the magnetic field can be used to manipulate the magnetic actuators, together with the most commonly used magnetic field configurations and the physicochemical parameters that can critically influence the magnetic properties of the actuators. Thereafter, we discuss relevant examples of magneto-mechanical and magneto-thermal stimulation, used to control stem cell fate, to activate neuronal functions, or to stimulate apoptotic pathways, among others. Finally, although magnetogenetics has raised high expectations from the research community, to date there are still many obstacles to be overcome in order for it to become a real alternative to optogenetics for instance. We discuss some controversial aspects related to the insufficient elucidation of the mechanisms of action of some magnetogenetics constructs and approaches, providing our opinion on important challenges in the field and possible directions for the upcoming years.
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Affiliation(s)
- Susel Del Sol-Fernández
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain.
| | - Pablo Martínez-Vicente
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain.
| | - Pilar Gomollón-Zueco
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain.
| | - Christian Castro-Hinojosa
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain.
| | - Lucía Gutiérrez
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain.
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain
- Departamento de Química Analítica, Universidad de Zaragoza, Zaragoza 50009, Spain
| | - Raluca M Fratila
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain.
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain
- Departamento de Química Orgánica, Universidad de Zaragoza, C/Pedro Cerbuna 12, Zaragoza 50009, Spain
| | - María Moros
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain.
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain
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3
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Araki S, Beppu K, Kabir AMR, Kakugo A, Maeda YT. Controlling Collective Motion of Kinesin-Driven Microtubules via Patterning of Topographic Landscapes. NANO LETTERS 2021; 21:10478-10485. [PMID: 34874725 DOI: 10.1021/acs.nanolett.1c03952] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Biomolecular motor proteins that generate forces by consuming chemical energy obtained from ATP hydrolysis play pivotal roles in organizing cytoskeletal structures in living cells. An ability to control cytoskeletal structures would benefit programmable protein patterning; however, our current knowledge is limited because of the underdevelopment of engineering approaches for controlling pattern formation. Here, we demonstrate the controlling of self-assembled patterns of microtubules (MTs) driven by kinesin motors by designing the boundary shape in fabricated microwells. By manipulating the collision angle of gliding MTs defined by the boundary shape, the self-assembly of MTs can be controlled to form protruding bundle and bridge patterns. Corroborated by the theory of self-propelled rods, we further show that the alignment of MTs determines the transition between the assembled patterns, providing a blueprint to reconstruct bridge structures in microchannels. Our findings introduce the tailoring of the self-organization of cytoskeletons and motor proteins for nanotechnological applications.
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Affiliation(s)
- Shunya Araki
- Department of Physics, Kyushu University, Motooka 744, Fukuoka 819-0395, Japan
| | - Kazusa Beppu
- Department of Physics, Kyushu University, Motooka 744, Fukuoka 819-0395, Japan
| | - Arif Md Rashedul Kabir
- Faculty of Science, Hokkaido University, Kita 10, Nishi 8, Kita-ku, Sapporo 060-0810, Hokkaido Japan
| | - Akira Kakugo
- Faculty of Science, Hokkaido University, Kita 10, Nishi 8, Kita-ku, Sapporo 060-0810, Hokkaido Japan
| | - Yusuke T Maeda
- Department of Physics, Kyushu University, Motooka 744, Fukuoka 819-0395, Japan
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Kwak M, Gu W, Jeong H, Lee H, Lee JU, An M, Kim YH, Lee JH, Cheon J, Jun YW. Small, Clickable, and Monovalent Magnetofluorescent Nanoparticles Enable Mechanogenetic Regulation of Receptors in a Crowded Live-Cell Microenvironment. NANO LETTERS 2019; 19:3761-3769. [PMID: 31037941 PMCID: PMC6615472 DOI: 10.1021/acs.nanolett.9b00891] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Multifunctional magnetic nanoparticles have shown great promise as next-generation imaging and perturbation probes for deciphering molecular and cellular processes. As a consequence of multicomponent integration into a single nanosystem, pre-existing nanoprobes are typically large and show limited access to biological targets present in a crowded microenvironment. Here, we apply organic-phase surface PEGylation, click chemistry, and charge-based valency discrimination principles to develop compact, modular, and monovalent magnetofluorescent nanoparticles (MFNs). We show that MFNs exhibit highly efficient labeling to target receptors present in cells with a dense and thick glycocalyx layer. We use these MFNs to interrogate the E-cadherin-mediated adherens junction formation and F-actin polymerization in a three-dimensional space, demonstrating the utility as modular and versatile mechanogenetic probes in the most demanding single-cell perturbation applications.
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Affiliation(s)
- Minsuk Kwak
- Department of Otolaryngology, University of California, San Francisco, San Francisco, California, USA
- Department of Pharmaceutical Chemistry, University of California, San Francisco, San Francisco, California, USA
- Helen Diller Family Comprehensive Cancer Center (HDFCCC), University of California, San Francisco, San Francisco, California, USA
- SKKU Advanced Institute of Nanotechnology (SAINT), SKKU, Suwon, Republic of Korea
| | - Wonji Gu
- Center for Nanomedicine, Institute for Basic Science (IBS), Seoul, Republic of Korea
- Yonsei-IBS Institute, Yonsei University, Seoul, Republic of Korea
| | - Heekyung Jeong
- Center for Nanomedicine, Institute for Basic Science (IBS), Seoul, Republic of Korea
- Yonsei-IBS Institute, Yonsei University, Seoul, Republic of Korea
- Department of Chemistry, Yonsei University, Seoul, Republic of Korea
| | - Hyunjung Lee
- Department of Otolaryngology, University of California, San Francisco, San Francisco, California, USA
- Department of Pharmaceutical Chemistry, University of California, San Francisco, San Francisco, California, USA
- Helen Diller Family Comprehensive Cancer Center (HDFCCC), University of California, San Francisco, San Francisco, California, USA
| | - Jung-uk Lee
- Center for Nanomedicine, Institute for Basic Science (IBS), Seoul, Republic of Korea
- Yonsei-IBS Institute, Yonsei University, Seoul, Republic of Korea
- Department of Chemistry, Yonsei University, Seoul, Republic of Korea
| | - Minji An
- Center for Nanomedicine, Institute for Basic Science (IBS), Seoul, Republic of Korea
- Yonsei-IBS Institute, Yonsei University, Seoul, Republic of Korea
| | - Yong Ho Kim
- SKKU Advanced Institute of Nanotechnology (SAINT), SKKU, Suwon, Republic of Korea
- Department of Chemistry, SKKU, Suwon, Republic of Korea
| | - Jae-Hyun Lee
- Center for Nanomedicine, Institute for Basic Science (IBS), Seoul, Republic of Korea
- Yonsei-IBS Institute, Yonsei University, Seoul, Republic of Korea
| | - Jinwoo Cheon
- Center for Nanomedicine, Institute for Basic Science (IBS), Seoul, Republic of Korea
- Yonsei-IBS Institute, Yonsei University, Seoul, Republic of Korea
- Department of Chemistry, Yonsei University, Seoul, Republic of Korea
| | - Young-wook Jun
- Department of Otolaryngology, University of California, San Francisco, San Francisco, California, USA
- Department of Pharmaceutical Chemistry, University of California, San Francisco, San Francisco, California, USA
- Helen Diller Family Comprehensive Cancer Center (HDFCCC), University of California, San Francisco, San Francisco, California, USA
- Center for Nanomedicine, Institute for Basic Science (IBS), Seoul, Republic of Korea
- Yonsei-IBS Institute, Yonsei University, Seoul, Republic of Korea
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5
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Li C, Armstrong JP, Pence IJ, Kit-Anan W, Puetzer JL, Correia Carreira S, Moore AC, Stevens MM. Glycosylated superparamagnetic nanoparticle gradients for osteochondral tissue engineering. Biomaterials 2018; 176:24-33. [PMID: 29852377 PMCID: PMC6018621 DOI: 10.1016/j.biomaterials.2018.05.029] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Revised: 04/27/2018] [Accepted: 05/19/2018] [Indexed: 12/21/2022]
Abstract
In developmental biology, gradients of bioactive signals direct the formation of structural transitions in tissue that are key to physiological function. Failure to reproduce these native features in an in vitro setting can severely limit the success of bioengineered tissue constructs. In this report, we introduce a facile and rapid platform that uses magnetic field alignment of glycosylated superparamagnetic iron oxide nanoparticles, pre-loaded with growth factors, to pattern biochemical gradients into a range of biomaterial systems. Gradients of bone morphogenetic protein 2 in agarose hydrogels were used to spatially direct the osteogenesis of human mesenchymal stem cells and generate robust osteochondral tissue constructs exhibiting a clear mineral transition from bone to cartilage. Interestingly, the smooth gradients in growth factor concentration gave rise to biologically-relevant, emergent structural features, including a tidemark transition demarcating mineralized and non-mineralized tissue and an osteochondral interface rich in hypertrophic chondrocytes. This platform technology offers great versatility and provides an exciting new opportunity for overcoming a range of interfacial tissue engineering challenges.
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Affiliation(s)
- Chunching Li
- Department of Materials, Department of Bioengineering and Institute of Biomedical Engineering, Imperial College London, Prince Consort Road, London, SW7 2AZ, United Kingdom
| | - James Pk Armstrong
- Department of Materials, Department of Bioengineering and Institute of Biomedical Engineering, Imperial College London, Prince Consort Road, London, SW7 2AZ, United Kingdom
| | - Isaac J Pence
- Department of Materials, Department of Bioengineering and Institute of Biomedical Engineering, Imperial College London, Prince Consort Road, London, SW7 2AZ, United Kingdom
| | - Worrapong Kit-Anan
- Department of Materials, Department of Bioengineering and Institute of Biomedical Engineering, Imperial College London, Prince Consort Road, London, SW7 2AZ, United Kingdom
| | - Jennifer L Puetzer
- Department of Materials, Department of Bioengineering and Institute of Biomedical Engineering, Imperial College London, Prince Consort Road, London, SW7 2AZ, United Kingdom
| | - Sara Correia Carreira
- H. H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol, BS8 1TL, United Kingdom
| | - Axel C Moore
- Department of Materials, Department of Bioengineering and Institute of Biomedical Engineering, Imperial College London, Prince Consort Road, London, SW7 2AZ, United Kingdom
| | - Molly M Stevens
- Department of Materials, Department of Bioengineering and Institute of Biomedical Engineering, Imperial College London, Prince Consort Road, London, SW7 2AZ, United Kingdom.
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6
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Gahl TJ, Kunze A. Force-Mediating Magnetic Nanoparticles to Engineer Neuronal Cell Function. Front Neurosci 2018; 12:299. [PMID: 29867315 PMCID: PMC5962660 DOI: 10.3389/fnins.2018.00299] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 04/18/2018] [Indexed: 12/12/2022] Open
Abstract
Cellular processes like membrane deformation, cell migration, and transport of organelles are sensitive to mechanical forces. Technically, these cellular processes can be manipulated through operating forces at a spatial precision in the range of nanometers up to a few micrometers through chaperoning force-mediating nanoparticles in electrical, magnetic, or optical field gradients. But which force-mediating tool is more suitable to manipulate cell migration, and which, to manipulate cell signaling? We review here the differences in forces sensation to control and engineer cellular processes inside and outside the cell, with a special focus on neuronal cells. In addition, we discuss technical details and limitations of different force-mediating approaches and highlight recent advancements of nanomagnetics in cell organization, communication, signaling, and intracellular trafficking. Finally, we give suggestions about how force-mediating nanoparticles can be used to our advantage in next-generation neurotherapeutic devices.
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Affiliation(s)
| | - Anja Kunze
- Department of Electrical and Computer Engineering, Montana State University, Bozeman, MT, United States
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7
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Timonen JVI, Grzybowski BA. Tweezing of Magnetic and Non-Magnetic Objects with Magnetic Fields. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1603516. [PMID: 28198579 DOI: 10.1002/adma.201603516] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Revised: 10/06/2016] [Indexed: 06/06/2023]
Abstract
Although strong magnetic fields cannot be conveniently "focused" like light, modern microfabrication techniques enable preparation of microstructures with which the field gradients - and resulting magnetic forces - can be localized to very small dimensions. This ability provides the foundation for magnetic tweezers which in their classical variant can address magnetic targets. More recently, the so-called negative magnetophoretic tweezers have also been developed which enable trapping and manipulations of completely nonmagnetic particles provided that they are suspended in a high-magnetic-susceptibility liquid. These two modes of magnetic tweezing are complimentary techniques tailorable for different types of applications. This Progress Report provides the theoretical basis for both modalities and illustrates their specific uses ranging from the manipulation of colloids in 2D and 3D, to trapping of living cells, control of cell function, experiments with single molecules, and more.
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Affiliation(s)
- Jaakko V I Timonen
- Department of Applied Physics, Aalto University School of Science, Espoo, 02150, Finland
| | - Bartosz A Grzybowski
- Center for Soft and Living Matter, Ulsan National Institute of Science and Technology, Ulsan, 44919, South Korea
- Department of Chemistry, Ulsan National Institute of Science and Technology, Ulsan, 44919, South Korea
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8
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Colin A, Bonnemay L, Gayrard C, Gautier J, Gueroui Z. Triggering signaling pathways using F-actin self-organization. Sci Rep 2016; 6:34657. [PMID: 27698406 PMCID: PMC5048156 DOI: 10.1038/srep34657] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Accepted: 09/16/2016] [Indexed: 12/20/2022] Open
Abstract
The spatiotemporal organization of proteins within cells is essential for cell fate behavior. Although it is known that the cytoskeleton is vital for numerous cellular functions, it remains unclear how cytoskeletal activity can shape and control signaling pathways in space and time throughout the cell cytoplasm. Here we show that F-actin self-organization can trigger signaling pathways by engineering two novel properties of the microfilament self-organization: (1) the confinement of signaling proteins and (2) their scaffolding along actin polymers. Using in vitro reconstitutions of cellular functions, we found that both the confinement of nanoparticle-based signaling platforms powered by F-actin contractility and the scaffolding of engineered signaling proteins along actin microfilaments can drive a signaling switch. Using Ran-dependent microtubule nucleation, we found that F-actin dynamics promotes the robust assembly of microtubules. Our in vitro assay is a first step towards the development of novel bottom-up strategies to decipher the interplay between cytoskeleton spatial organization and signaling pathway activity.
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Affiliation(s)
- A. Colin
- Ecole Normale Supérieure, Department of Chemistry PSL Research University-CNRS-ENS-UPMC 24, rue Lhomond, 75005, Paris, France
| | - L. Bonnemay
- Ecole Normale Supérieure, Department of Chemistry PSL Research University-CNRS-ENS-UPMC 24, rue Lhomond, 75005, Paris, France
| | - C. Gayrard
- Ecole Normale Supérieure, Department of Chemistry PSL Research University-CNRS-ENS-UPMC 24, rue Lhomond, 75005, Paris, France
| | - J. Gautier
- Ecole Normale Supérieure, Department of Chemistry PSL Research University-CNRS-ENS-UPMC 24, rue Lhomond, 75005, Paris, France
| | - Z. Gueroui
- Ecole Normale Supérieure, Department of Chemistry PSL Research University-CNRS-ENS-UPMC 24, rue Lhomond, 75005, Paris, France
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9
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Ross B, Mehta S, Zhang J. Molecular tools for acute spatiotemporal manipulation of signal transduction. Curr Opin Chem Biol 2016; 34:135-142. [PMID: 27639090 DOI: 10.1016/j.cbpa.2016.08.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2016] [Revised: 08/15/2016] [Accepted: 08/17/2016] [Indexed: 01/14/2023]
Abstract
The biochemical activities involved in signal transduction in cells are under tight spatiotemporal regulation. To study the effects of the spatial patterning and temporal dynamics of biochemical activities on downstream signaling, researchers require methods to manipulate signaling pathways acutely and rapidly. In this review, we summarize recent developments in the design of three broad classes of molecular tools for perturbing signal transduction, classified by their type of input signal: chemically induced, optically induced, and magnetically induced.
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Affiliation(s)
- Brian Ross
- Department of Pharmacology, University of California, San Diego, La Jolla, CA, USA; Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD, USA
| | - Sohum Mehta
- Department of Pharmacology, University of California, San Diego, La Jolla, CA, USA
| | - Jin Zhang
- Department of Pharmacology, University of California, San Diego, La Jolla, CA, USA; Department of Pharmacology and Molecular Sciences, Johns Hopkins University, Baltimore, MD, USA.
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10
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Hughes JH, Kumar S. Synthetic mechanobiology: engineering cellular force generation and signaling. Curr Opin Biotechnol 2016; 40:82-89. [PMID: 27023733 DOI: 10.1016/j.copbio.2016.03.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Revised: 03/01/2016] [Accepted: 03/03/2016] [Indexed: 10/24/2022]
Abstract
Mechanobiology seeks to understand and control mechanical and related biophysical communication between cells and their surroundings. While experimental efforts in this field have traditionally emphasized manipulation of the extracellular force environment, a new suite of approaches has recently emerged in which cell phenotype and signaling are controlled by directly engineering the cell itself. One route is to control cell behavior by modulating gene expression using conditional promoters. Alternatively, protein activity can be actuated directly using synthetic protein ligands, chemically induced protein dimerization, optogenetic strategies, or functionalized magnetic nanoparticles. Proof-of-principle studies are already demonstrating the translational potential of these approaches, and future technological development will permit increasingly precise control over cell mechanobiology and improve our understanding of the underlying signaling events.
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Affiliation(s)
- Jasmine Hannah Hughes
- Department of Bioengineering, University of California, Berkeley, United States; UC Berkeley - UCSF Graduate Program in Bioengineering, United States
| | - Sanjay Kumar
- Department of Bioengineering, University of California, Berkeley, United States.
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11
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Sun Y, Ma J, Tian D, Li H. Macroscopic switches constructed through host–guest chemistry. Chem Commun (Camb) 2016; 52:4602-12. [DOI: 10.1039/c6cc00338a] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In this feature article, we discuss recent developments in macroscopic contact angle switches formed by different macrocyclic hosts and highlight the properties of these new functional surfaces and their potential applications.
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Affiliation(s)
- Yue Sun
- Key Laboratory of Pesticide and Chemical Biology (CCNU)
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan
| | - Junkai Ma
- Key Laboratory of Pesticide and Chemical Biology (CCNU)
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan
| | - Demei Tian
- Key Laboratory of Pesticide and Chemical Biology (CCNU)
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan
| | - Haibing Li
- Key Laboratory of Pesticide and Chemical Biology (CCNU)
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan
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12
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Fukuyama T, Fuke A, Mochizuki M, Kamei KI, Maeda YT. Directing and Boosting of Cell Migration by the Entropic Force Gradient in Polymer Solution. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:12567-12572. [PMID: 26496637 DOI: 10.1021/acs.langmuir.5b02559] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Noncontact manipulation of nano/micromaterials presents a great challenge in fields ranging from biotechnology to nanotechnology. In this study we developed a new strategy for the manipulation of molecules and cells based on diffusiophoresis driven by a concentration gradient of a polymer solute. By using laser focusing in a microfluidic device, we created a sharp concentration gradient of poly(ethylene glycol) (PEG) in a solution of this polymer. Because diffusiophoresis essentially depends on solute gradients alone, PEG solute contrast resulted in trapping of DNA and eukaryotic cells with little material dependence. Furthermore, quantitative analysis revealed that the motility of migrating cells was enhanced with the PEG concentration, consistent with a theoretical model of boosted cell migration. Our results support that a solute contrast of polymer can exert an interfacial force gradient that physically propels objects and may have application for the manipulation of soft materials.
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Affiliation(s)
- Tatsuya Fukuyama
- Department of Physics, Faculty of Science, Kyushu University , 6-10-1 Hakozaki, Higashi-ku, 812-8581 Fukuoka, Japan
| | - Ariko Fuke
- Department of Physics and Astronomy, Graduate School of Science, Kyoto University , Oiwake-cho, Kitashirakawa, Kyoto 606-8502, Japan
| | - Megumi Mochizuki
- Department of Physics and Astronomy, Graduate School of Science, Kyoto University , Oiwake-cho, Kitashirakawa, Kyoto 606-8502, Japan
| | - Ken-Ichiro Kamei
- Institute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University , Yoshida-Ushinomiya-cho, Kyoto 606-8501, Japan
| | - Yusuke T Maeda
- Department of Physics, Faculty of Science, Kyushu University , 6-10-1 Hakozaki, Higashi-ku, 812-8581 Fukuoka, Japan
- PRESTO, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
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13
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Etoc F, Vicario C, Lisse D, Siaugue JM, Piehler J, Coppey M, Dahan M. Magnetogenetic control of protein gradients inside living cells with high spatial and temporal resolution. NANO LETTERS 2015; 15:3487-94. [PMID: 25895433 DOI: 10.1021/acs.nanolett.5b00851] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Tools for controlling the spatial organization of proteins are a major prerequisite for deciphering mechanisms governing the dynamic architecture of living cells. Here, we have developed a generic approach for inducing and maintaining protein gradients inside living cells by means of biofunctionalized magnetic nanoparticles (MNPs). For this purpose, we tailored the size and surface properties of MNPs in order to ensure unhindered mobility in the cytosol. These MNPs with a core diameter below 50 nm could be rapidly relocalized in living cells by exploiting biased diffusion at weak magnetic forces in the femto-Newton range. In combination with MNP surface functionalization for specific in situ capturing of target proteins as well as efficient delivery into the cytosplasm, we here present a comprehensive technology for controlling intracellular protein gradients with a temporal resolution of a few tens of seconds.
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Affiliation(s)
- Fred Etoc
- †Laboratoire Physico-Chimie, Institut Curie, CNRS UMR168, Paris-Science Lettres, Université Pierre et Marie Curie-Paris 6, 75005 Paris, France
| | - Chiara Vicario
- †Laboratoire Physico-Chimie, Institut Curie, CNRS UMR168, Paris-Science Lettres, Université Pierre et Marie Curie-Paris 6, 75005 Paris, France
| | - Domenik Lisse
- †Laboratoire Physico-Chimie, Institut Curie, CNRS UMR168, Paris-Science Lettres, Université Pierre et Marie Curie-Paris 6, 75005 Paris, France
- ‡Department of Biology, University of Osnabrück, 49076 Osnabrück, Germany
| | - Jean-Michel Siaugue
- §Sorbonne Universités, UPMC Univ Paris 06, UMR 8234, PHENIX, F-75005 Paris, France
| | - Jacob Piehler
- ‡Department of Biology, University of Osnabrück, 49076 Osnabrück, Germany
| | - Mathieu Coppey
- †Laboratoire Physico-Chimie, Institut Curie, CNRS UMR168, Paris-Science Lettres, Université Pierre et Marie Curie-Paris 6, 75005 Paris, France
| | - Maxime Dahan
- †Laboratoire Physico-Chimie, Institut Curie, CNRS UMR168, Paris-Science Lettres, Université Pierre et Marie Curie-Paris 6, 75005 Paris, France
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Ghosh S, Tehrani M, Al-Haik MS, Puri IK. Patterning the Stiffness of Elastomeric Nanocomposites by Magnetophoretic Control of Cross-linking Impeder Distribution. MATERIALS (BASEL, SWITZERLAND) 2015; 8:474-485. [PMID: 28787951 PMCID: PMC5455270 DOI: 10.3390/ma8020474] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Revised: 01/09/2015] [Accepted: 01/22/2015] [Indexed: 11/29/2022]
Abstract
We report a novel method to pattern the stiffness of an elastomeric nanocomposite by selectively impeding the cross-linking reactions at desired locations while curing. This is accomplished by using a magnetic field to enforce a desired concentration distribution of colloidal magnetite nanoparticles (MNPs) in the liquid precursor of polydimethysiloxane (PDMS) elastomer. MNPs impede the cross-linking of PDMS; when they are dispersed in liquid PDMS, the cured elastomer exhibits lower stiffness in portions containing a higher nanoparticle concentration. Consequently, a desired stiffness pattern is produced by selecting the required magnetic field distribution a priori. Up to 200% variation in the reduced modulus is observed over a 2 mm length, and gradients of up to 12.6 MPa·mm-1 are obtained. This is a significant improvement over conventional nanocomposite systems where only small unidirectional variations can be achieved by varying nanoparticle concentration. The method has promising prospects in additive manufacturing; it can be integrated with existing systems thereby adding the capability to produce microscale heterogeneities in mechanical properties.
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Affiliation(s)
- Suvojit Ghosh
- Department of Engineering Physics, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L7, Canada.
- Department of Engineering Science and Mechanics, Virginia Tech, 495 Old Turner Street, Blacksburg, VA 24061, USA.
| | - Mehran Tehrani
- Department of Mechanical Engineering, University of New Mexico, Albuquerque, NM 87131, USA.
| | - Marwan S Al-Haik
- Department of Engineering Science and Mechanics, Virginia Tech, 495 Old Turner Street, Blacksburg, VA 24061, USA.
| | - Ishwar K Puri
- Department of Engineering Physics, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L7, Canada.
- Department of Mechanical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L7, Canada.
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Bonnemay L, Hoffmann C, Gueroui Z. Remote control of signaling pathways using magnetic nanoparticles. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2014; 7:342-54. [DOI: 10.1002/wnan.1313] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Revised: 09/04/2014] [Accepted: 09/29/2014] [Indexed: 11/07/2022]
Affiliation(s)
- Louise Bonnemay
- Département de ChimieEcole Normale Supérieure ‐ PSL Research University, UMR 8640 ‐ CNRS ‐ ENS ‐ UPMCParisFrance
| | - Céline Hoffmann
- Département de ChimieEcole Normale Supérieure ‐ PSL Research University, UMR 8640 ‐ CNRS ‐ ENS ‐ UPMCParisFrance
| | - Zoher Gueroui
- Département de ChimieEcole Normale Supérieure ‐ PSL Research University, UMR 8640 ‐ CNRS ‐ ENS ‐ UPMCParisFrance
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Krabbenborg SO, Huskens J. Electrochemically Generated Gradients. Angew Chem Int Ed Engl 2014; 53:9152-67. [DOI: 10.1002/anie.201310349] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Indexed: 01/06/2023]
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