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Kerivan EM, Tobin L, Basil M, Reinemann DN. Molecular and cellular level characterization of cytoskeletal mechanics using a quartz crystal microbalance. Cytoskeleton (Hoboken) 2023; 80:100-111. [PMID: 36891731 PMCID: PMC10272097 DOI: 10.1002/cm.21752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 01/19/2023] [Accepted: 03/05/2023] [Indexed: 03/10/2023]
Abstract
A quartz crystal microbalance (QCM) is an instrument that has the ability to measure nanogram-level changes in mass on a quartz sensor and is traditionally used to probe surface interactions and assembly kinetics of synthetic systems. The addition of dissipation monitoring (QCM-D) facilitates the study of viscoelastic systems, such as those relevant to molecular and cellular mechanics. Due to real-time recording of frequency and dissipation changes and single protein-level precision, the QCM-D is effective in interrogating the viscoelastic properties of cell surfaces and in vitro cellular components. However, few studies focus on the application of this instrument to cytoskeletal systems, whose dynamic parts create interesting emergent mechanics as ensembles that drive essential tasks, such as division and motility. Here, we review the ability of the QCM-D to characterize key kinetic and mechanical features of the cytoskeleton through in vitro reconstitution and cellular assays and outline how QCM-D studies can yield insightful mechanical data alone and in tandem with other biophysical characterization techniques.
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Affiliation(s)
- Emily M. Kerivan
- Department of Biomedical Engineering, University of Mississippi, University, MS 38677 USA
| | - Lyle Tobin
- Department of Biomedical Engineering, University of Mississippi, University, MS 38677 USA
- Department of Chemistry and Biochemistry, University of Mississippi, University, MS 38677 USA
| | - Mihir Basil
- Department of Biomedical Engineering, University of Mississippi, University, MS 38677 USA
| | - Dana N. Reinemann
- Department of Biomedical Engineering, University of Mississippi, University, MS 38677 USA
- Department of Chemical Engineering, University of Mississippi, University, MS 38677 USA
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2
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Dong T, Han C, Liu X, Wang Z, Wang Y, Kang Q, Wang P, Zhou F. Live Cells versus Fixated Cells: Kinetic Measurements of Biomolecular Interactions with the LigandTracer Method and Surface Plasmon Resonance Microscopy. Mol Pharm 2023; 20:2094-2104. [PMID: 36939457 DOI: 10.1021/acs.molpharmaceut.2c01047] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2023]
Abstract
Cell-based kinetic studies of ligand or candidate drug binding to membrane proteins have produced affinity and kinetic values that are different from measurements using purified proteins. However, ligand binding to fixated cells whose membrane constituents (e.g., proteins and their glycosylated forms) are partially connected by a cross-linking reagent has not been compared to that to live cells. Under the same experimental conditions for the LigandTracer method, we measured the interactions of fluorophore-labeled lectins and antibody molecules with glycans at HFF cells and the human epithelial growth receptor 2 at SKBR3 cells, respectively. In conjunction with surface plasmon resonance microscopy, the effects of labels and cell/sub-cell heterogeneity on binding kinetics were investigated. Our results revealed that, for cell constituents whose structures and functions are not closely dependent on cell viability, the ligand binding kinetics at fixated cells is only slightly different from that at live cells. The altered kinetics is explained on the basis of a less mobile receptor confined in a local environment created by partially interconnected protein molecules. We show that cell/sub-cell heterogeneity and labels on the ligands can alter the binding reaction more significantly. Thus, fixating cells not only simplifies experimental procedures for drug screening and renders assays more robust but also provides reliable kinetic information about drug binding to cell constituents whose structures are not changed by chemical fixation.
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Affiliation(s)
- Tianbao Dong
- Institute of Surface Analysis and Chemical Biology, University of Jinan, Jinan, Shandong 250022, P. R. China
| | - Chaowei Han
- Institute of Surface Analysis and Chemical Biology, University of Jinan, Jinan, Shandong 250022, P. R. China
| | - Xin Liu
- Institute of Surface Analysis and Chemical Biology, University of Jinan, Jinan, Shandong 250022, P. R. China
| | - Zhichao Wang
- Institute of Surface Analysis and Chemical Biology, University of Jinan, Jinan, Shandong 250022, P. R. China
| | - Yanhui Wang
- Institute of Surface Analysis and Chemical Biology, University of Jinan, Jinan, Shandong 250022, P. R. China
| | - Qing Kang
- Institute of Surface Analysis and Chemical Biology, University of Jinan, Jinan, Shandong 250022, P. R. China
| | - Pengcheng Wang
- Institute of Surface Analysis and Chemical Biology, University of Jinan, Jinan, Shandong 250022, P. R. China
| | - Feimeng Zhou
- Institute of Surface Analysis and Chemical Biology, University of Jinan, Jinan, Shandong 250022, P. R. China
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3
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Peng Z, Lu J, Zhang L, Liu Y, Li J. Label-free imaging of epidermal growth factor receptor-induced response in single living cells. Analyst 2018; 143:5264-5270. [PMID: 30280173 DOI: 10.1039/c8an01534a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Epidermal growth factor receptor (EGFR), which belongs to the second-largest protein family for cell signal transduction, plays crucial roles in homeostasis, cellular organized patterns and most human cancers. In EGFR-activated signaling networks, the detection of the spatial and temporal dynamics of cascades that encode the many cell fates is still a challenge. Here, we report real-time imaging of epidermal growth factor (EGF)-induced EGFR activation and its signaling cascade in single A431 cells using surface plasmon resonance (SPR) microscopy. A two-phase SPR response pattern was observed within 30 min after EGF treatment, including a positive SPR response that was related to the EGFR-activated mass redistribution in the first 600 s, and a subsequent negative SPR signal caused by the morphological change of the cells. Furthermore, the inhibitor analysis verified that AG1478 inhibited the response from the whole the cell, whereas cytochalasin B strongly inhibited the response from the cell edge region.
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Affiliation(s)
- Zanying Peng
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China.
| | - Jin Lu
- Department of Electrical and Systems Engineering, Washington University in St Louis, MO 63130, USA
| | - Ling Zhang
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China.
| | - Yang Liu
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China.
| | - Jinghong Li
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China.
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4
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Chen JY, Penn LS, Xi J. Quartz crystal microbalance: Sensing cell-substrate adhesion and beyond. Biosens Bioelectron 2018; 99:593-602. [DOI: 10.1016/j.bios.2017.08.032] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 08/03/2017] [Accepted: 08/12/2017] [Indexed: 10/19/2022]
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5
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Bondza S, Foy E, Brooks J, Andersson K, Robinson J, Richalet P, Buijs J. Real-time Characterization of Antibody Binding to Receptors on Living Immune Cells. Front Immunol 2017; 8:455. [PMID: 28484455 PMCID: PMC5401896 DOI: 10.3389/fimmu.2017.00455] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 04/04/2017] [Indexed: 11/19/2022] Open
Abstract
Understanding molecular interactions on immune cells is crucial for drug development to treat cancer and autoimmune diseases. When characterizing molecular interactions, the use of a relevant living model system is important, as processes such as receptor oligomerization and clustering can influence binding patterns. We developed a protocol to enable time-resolved analysis of ligand binding to receptors on living suspension cells. Different suspension cell lines and weakly adhering cells were tethered to Petri dishes with the help of a biomolecular anchor molecule, and antibody binding was analyzed using LigandTracer. The protocol and assay described in this report were used to characterize interactions involving eight cell lines. Experiments were successfully conducted in three different laboratories, demonstrating the robustness of the protocol. For various antibodies, affinities and kinetic rate constants were obtained for binding to CD20 on both Daudi and Ramos B-cells, the T-cell co-receptor CD3 on Jurkat cells, and the Fcγ receptor CD32 on transfected HEK293 cells, respectively. Analyzing the binding of Rituximab to B-cells resulted in an affinity of 0.7–0.9 nM, which is similar to values reported previously for living B-cells. However, we observed a heterogeneous behavior for Rituximab interacting with B-cells, which to our knowledge has not been described previously. The understanding of complex interactions will be facilitated with the possibility to characterize binding processes in real-time on living immune cells. This provides the chance to broaden the understanding of how binding kinetics relate to biological function.
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Affiliation(s)
- Sina Bondza
- Ridgeview Instruments AB, Vänge, Sweden.,Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Eleanor Foy
- Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Leeds, UK
| | | | - Karl Andersson
- Ridgeview Instruments AB, Vänge, Sweden.,Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - James Robinson
- Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Leeds, UK
| | | | - Jos Buijs
- Ridgeview Instruments AB, Vänge, Sweden.,Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
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6
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Chronaki D, Stratiotis DI, Tsortos A, Anastasiadou E, Gizeli E. Screening between normal and cancer human thyroid cells through comparative adhesion studies using the Quartz Crystal Microbalance. SENSING AND BIO-SENSING RESEARCH 2016. [DOI: 10.1016/j.sbsr.2016.10.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
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7
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MicroRNA-mediated signal amplification coupled with GNP/dendrimers on a mass-sensitive biosensor and its applications in intracellular microRNA quantification. Biosens Bioelectron 2016; 85:897-902. [DOI: 10.1016/j.bios.2016.06.013] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Revised: 06/06/2016] [Accepted: 06/06/2016] [Indexed: 12/14/2022]
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8
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Kushiro K, Lee CH, Takai M. Simultaneous characterization of protein–material and cell–protein interactions using dynamic QCM-D analysis on SAM surfaces. Biomater Sci 2016; 4:989-97. [DOI: 10.1039/c5bm00613a] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
QCM-D signal patterns can serve as rules of thumb for biomaterial development by simultaneously characterizing different protein–material and cell–protein interactions.
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Affiliation(s)
- Keiichiro Kushiro
- Department of Bioengineering
- School of Engineering
- The University of Tokyo
- Tokyo 113-8656
- Japan
| | - Chih-Hao Lee
- Department of Bioengineering
- School of Engineering
- The University of Tokyo
- Tokyo 113-8656
- Japan
| | - Madoka Takai
- Department of Bioengineering
- School of Engineering
- The University of Tokyo
- Tokyo 113-8656
- Japan
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9
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Qin J, Sun X, Liu Y, Berthold T, Harms H, Wick LY. Electrokinetic control of bacterial deposition and transport. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2015; 49:5663-5671. [PMID: 25844535 DOI: 10.1021/es506245y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Microbial biofilms can cause severe problems in technical installations where they may give rise to microbially influenced corrosion and clogging of filters and membranes or even threaten human health, e.g. when they infest water treatment processes. There is, hence, high interest in methods to prevent microbial adhesion as the initial step of biofilm formation. In environmental technology it might be desired to enhance bacterial transport through porous matrices. This motivated us to test the hypothesis that the attractive interaction energy allowing cells to adhere can be counteracted and overcome by the shear force induced by electroosmotic flow (EOF, i.e. the water flow over surfaces exposed to a weak direct current (DC) electric field). Applying EOF of varying strengths we quantified the deposition of Pseudomonas fluorescens Lp6a in columns containing glass collectors and on a quartz crystal microbalance. We found that the presence of DC reduced the efficiency of initial adhesion and bacterial surface coverage by >85%. A model is presented which quantitatively explains the reduction of bacterial adhesion based on the extended Derjaguin, Landau, Verwey, and Overbeek (XDLVO) theory of colloid stability and the EOF-induced shear forces acting on a bacterium. We propose that DC fields may be used to electrokinetically regulate the interaction of bacteria with surfaces in order to delay initial adhesion and biofilm formation in technical installations or to enhance bacterial transport in environmental matrices.
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Affiliation(s)
- Jinyi Qin
- †Department of Environmental Microbiology, UFZ - Helmholtz Centre for Environmental Research, Permoserstrasse 15, 04318 Leipzig, Saxony, Germany
| | - Xiaohui Sun
- ‡Department of Civil and Environmental Engineering, 3-133 Markin/CNRL Natural Resources Engineering Facility, University of Alberta, Edmonton, Alberta T6G 2W2, Canada
| | - Yang Liu
- ‡Department of Civil and Environmental Engineering, 3-133 Markin/CNRL Natural Resources Engineering Facility, University of Alberta, Edmonton, Alberta T6G 2W2, Canada
| | - Tom Berthold
- †Department of Environmental Microbiology, UFZ - Helmholtz Centre for Environmental Research, Permoserstrasse 15, 04318 Leipzig, Saxony, Germany
| | - Hauke Harms
- †Department of Environmental Microbiology, UFZ - Helmholtz Centre for Environmental Research, Permoserstrasse 15, 04318 Leipzig, Saxony, Germany
| | - Lukas Y Wick
- †Department of Environmental Microbiology, UFZ - Helmholtz Centre for Environmental Research, Permoserstrasse 15, 04318 Leipzig, Saxony, Germany
- ‡Department of Civil and Environmental Engineering, 3-133 Markin/CNRL Natural Resources Engineering Facility, University of Alberta, Edmonton, Alberta T6G 2W2, Canada
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10
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Zhang S, Bai H, Pi J, Yang P, Cai J. Label-Free Quartz Crystal Microbalance with Dissipation Monitoring of Resveratrol Effect on Mechanical Changes and Folate Receptor Expression Levels of Living MCF-7 Cells: A Model for Screening of Drugs. Anal Chem 2015; 87:4797-805. [DOI: 10.1021/acs.analchem.5b00083] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Shaolian Zhang
- Department
of Chemistry, Jinan University, Guangzhou, Guangdong 510632, People’s Republic of China
| | - Haihua Bai
- Department
of Chemistry, Jinan University, Guangzhou, Guangdong 510632, People’s Republic of China
| | - Jiang Pi
- Department
of Chemistry, Jinan University, Guangzhou, Guangdong 510632, People’s Republic of China
| | - Peihui Yang
- Department
of Chemistry, Jinan University, Guangzhou, Guangdong 510632, People’s Republic of China
| | - Jiye Cai
- Department
of Chemistry, Jinan University, Guangzhou, Guangdong 510632, People’s Republic of China
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11
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Stratton D, Lange S, Kholia S, Jorfi S, Antwi-Baffour S, Inal J. Label-free real-time acoustic sensing of microvesicle release from prostate cancer (PC3) cells using a Quartz Crystal Microbalance. Biochem Biophys Res Commun 2014; 453:619-24. [DOI: 10.1016/j.bbrc.2014.09.132] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Accepted: 09/30/2014] [Indexed: 11/25/2022]
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12
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Nowacki L, Follet J, Vayssade M, Vigneron P, Rotellini L, Cambay F, Egles C, Rossi C. Real-time QCM-D monitoring of cancer cell death early events in a dynamic context. Biosens Bioelectron 2014; 64:469-76. [PMID: 25286354 DOI: 10.1016/j.bios.2014.09.065] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 09/18/2014] [Accepted: 09/23/2014] [Indexed: 02/07/2023]
Abstract
Since a few years, the acoustic sensing of whole cell is the focus of increasing interest for monitoring the cytoskeletal cellular response to morphological modulators. We aimed at illustrating the potentialities of the quartz crystal microbalance with dissipation (QCM-D) technique for the real-time detection of the earliest morphological changes that occur at the cell-substrate interface during programmed cell death. Human breast cancer cells (MCF-7) grown on serum protein-coated gold sensors were placed in dynamic conditions under a continuous medium flow. The mass and viscoelasticity changes of the cells were tracked by monitoring the frequency and dissipation shifts during the first 4h of cell exposure to staurosporine, a well-known apoptosis inducer. We have identified a QCM-D signature characteristic of morphological modifications and cell detachment from the sensing surface that are related to the pro-apoptotic treatment. In particular, for low staurosporine doses below 1 µM, we showed that recording the dissipation shift allows to detect an early cell response which is undetectable after the same duration by the classical analytical techniques in cell biology. Furthermore, this sensing method allows quantifying the efficiency of the drug effect in less than 4h without requiring labeling and without interfering in the system, thus preventing any loss of information. In the actual context of targeted cancer therapy development, we believe that these results bring new insights in favor of the use of the non invasive QCM-D technique for quickly probing the cancer cell sensitivity to death inducer drugs.
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Affiliation(s)
- Laetitia Nowacki
- FRE CNRS 3580, Génie Enzymatique et Cellulaire, Université de Technologie de Compiègne, Centre de Recherches de Royallieu, CS 60319, 60203 Compiègne, France; UMR CNRS 7338, BioMécanique et BioIngénierie, Université de Technologie de Compiègne, Centre de Recherches de Royallieu, CS 60319, 60203 Compiègne, France
| | - Julie Follet
- UMR CNRS 7338, BioMécanique et BioIngénierie, Université de Technologie de Compiègne, Centre de Recherches de Royallieu, CS 60319, 60203 Compiègne, France
| | - Muriel Vayssade
- UMR CNRS 7338, BioMécanique et BioIngénierie, Université de Technologie de Compiègne, Centre de Recherches de Royallieu, CS 60319, 60203 Compiègne, France
| | - Pascale Vigneron
- UMR CNRS 7338, BioMécanique et BioIngénierie, Université de Technologie de Compiègne, Centre de Recherches de Royallieu, CS 60319, 60203 Compiègne, France
| | - Laura Rotellini
- UMR CNRS 7338, BioMécanique et BioIngénierie, Université de Technologie de Compiègne, Centre de Recherches de Royallieu, CS 60319, 60203 Compiègne, France
| | - Florian Cambay
- UMR CNRS 7338, BioMécanique et BioIngénierie, Université de Technologie de Compiègne, Centre de Recherches de Royallieu, CS 60319, 60203 Compiègne, France
| | - Christophe Egles
- UMR CNRS 7338, BioMécanique et BioIngénierie, Université de Technologie de Compiègne, Centre de Recherches de Royallieu, CS 60319, 60203 Compiègne, France; Department of Oral and Maxillofacial Pathology, Tufts University, School of Dental Medicine, 1 Kneeland St, Boston, MA 02111, United States.
| | - Claire Rossi
- FRE CNRS 3580, Génie Enzymatique et Cellulaire, Université de Technologie de Compiègne, Centre de Recherches de Royallieu, CS 60319, 60203 Compiègne, France.
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13
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Sun C. Preparation of solid surfaces for native chemical ligation in the quartz crystal microbalance. SURF INTERFACE ANAL 2013. [DOI: 10.1002/sia.5327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Chengjun Sun
- College of Materials and Textile Engineering; Jiaxing University; Jiaxing Zhejiang 314001 China
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14
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15
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Deng H, Wang C, Fang Y. Label-free cell phenotypic assessment of the molecular mechanism of action of epidermal growth factor receptor inhibitors. RSC Adv 2013. [DOI: 10.1039/c3ra40426a] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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16
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Walker F, Rothacker J, Henderson C, Nice EC, Catimel B, Zhang HH, Scott AM, Bailey MF, Orchard SG, Adams TE, Liu Z, Garrett TPJ, Clayton AHA, Burgess AW. Ligand binding induces a conformational change in epidermal growth factor receptor dimers. Growth Factors 2012; 30:394-409. [PMID: 23163584 DOI: 10.3109/08977194.2012.739619] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The activation of the epidermal growth factor receptor (EGFR) kinase requires ligand binding to the extracellular domain (ECD). Previous reports demonstrate that the EGFR-ECD can be crystallized in two conformations - a tethered monomer or, in the presence of ligand, an untethered back-to-back dimer. We use Biosensor analysis to demonstrate that even in the monomeric state different C-terminal extensions of both truncated (EGFR(1-501))-ECD and full-length EGFR(1-621)-ECD can change the conformation of the ligand-binding site. The binding of a monoclonal antibody mAb806, which recognizes the dimer interface, to the truncated EGFR(1-501)-Fc fusion protein is reduced in the presence of ligand, consistent with a change in conformation. On the cell surface, the presence of erythroblastosis B2 (erbB2) increases the binding of mAb806 to the EGFR. The conformation of the erbB2: EGFR heterodimer interface changes when the cells are treated with epidermal growth factor (EGF). We propose that ligand induces kinase-inactive, pre-formed EGFR dimers and heterodimers to change conformation leading to kinase-active tetramers, where kinase activation occurs via an asymmetric interaction between EGFR dimers.
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Affiliation(s)
- Francesca Walker
- Ludwig Institute for Cancer Research Melbourne - Parkville Branch, Australia
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Tymchenko N, Nilebäck E, Voinova MV, Gold J, Kasemo B, Svedhem S. Reversible Changes in Cell Morphology due to Cytoskeletal Rearrangements Measured in Real-Time by QCM-D. Biointerphases 2012; 7:43. [DOI: 10.1007/s13758-012-0043-9] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2012] [Accepted: 06/21/2012] [Indexed: 10/28/2022] Open
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18
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Garcia MP, Shahid A, Chen JY, Xi J. Effects of the expression level of epidermal growth factor receptor on the ligand-induced restructuring of focal adhesions: a QCM-D study. Anal Bioanal Chem 2012. [DOI: 10.1007/s00216-012-6558-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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Evaluating Inhibition of the Epidermal Growth Factor (EGF)-Induced Response of Mutant MCF10A Cells with an Acoustic Sensor. BIOSENSORS-BASEL 2012; 2:448-64. [PMID: 25586035 PMCID: PMC4263556 DOI: 10.3390/bios2040448] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2012] [Revised: 10/08/2012] [Accepted: 11/07/2012] [Indexed: 11/25/2022]
Abstract
Many cancer treatments rely on inhibition of epidermal growth factor (EGF)-induced cellular responses. Evaluating drug effects on such responses becomes critical to the development of new cancer therapeutics. In this report, we have employed a label-free acoustic sensor, the quartz crystal microbalance with dissipation monitoring (QCM-D), to track the EGF-induced response of mutant MCF10A cells under various inhibitory conditions. We have identified a complex cell de-adhesion process, which can be distinctly altered by inhibitors of signaling pathways and cytoskeleton formation in a dose-dependent manner. The dose dependencies of the inhibitors provide IC50 values which are in strong agreement with the values reported in the literature, demonstrating the sensitivity and reliability of the QCM-D as a screening tool. Using immunofluorescence imaging, we have also verified the quantitative relationship between the ΔD-response (change in energy dissipation factor) and the level of focal adhesions quantified with the areal density of immunostained vinculin under those inhibitory conditions. Such a correlation suggests that the dynamic restructuring of focal adhesions can be assessed based on the time-dependent change in ΔD-response. Overall, this report has shown that the QCM-D has the potential to become an effective sensing platform for screening therapeutic agents that target signaling and cytoskeletal proteins.
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20
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Dissipation monitoring for assessing EGF-induced changes of cell adhesion. Biosens Bioelectron 2012; 38:375-81. [DOI: 10.1016/j.bios.2012.06.018] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2012] [Revised: 05/17/2012] [Accepted: 06/14/2012] [Indexed: 11/19/2022]
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21
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Wang B, Liu Z, Xu Y, Li Y, An T, Su Z, Peng B, Lin Y, Wang Q. Construction of glycoprotein multilayers using the layer-by-layer assembly technique. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm33070a] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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22
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Yang R, Chen JY, Xi N, Lai KWC, Qu C, Fung CKM, Penn LS, Xi J. Characterization of mechanical behavior of an epithelial monolayer in response to epidermal growth factor stimulation. Exp Cell Res 2011; 318:521-6. [PMID: 22227009 DOI: 10.1016/j.yexcr.2011.12.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2011] [Revised: 11/11/2011] [Accepted: 12/05/2011] [Indexed: 01/20/2023]
Abstract
Cell signaling often causes changes in cellular mechanical properties. Knowledge of such changes can ultimately lead to insight into the complex network of cell signaling. In the current study, we employed a combination of atomic force microscopy (AFM) and quartz crystal microbalance with dissipation monitoring (QCM-D) to characterize the mechanical behavior of A431 cells in response to epidermal growth factor receptor (EGFR) signaling. From AFM, which probes the upper portion of an individual cell in a monolayer of cells, we observed increases in energy dissipation, Young's modulus, and hysteresivity. Increases in hysteresivity imply a shift toward a more fluid-like mechanical ordering state in the bodies of the cells. From QCM-D, which probes the basal area of the monolayer of cells collectively, we observed decreases in energy dissipation factor. This result suggests a shift toward a more solid-like state in the basal areas of the cells. The comparative analysis of these results indicates a regionally specific mechanical behavior of the cell in response to EGFR signaling and suggests a correlation between the time-dependent mechanical responses and the dynamic process of EGFR signaling. This study also demonstrates that a combination of AFM and QCM-D is able to provide a more complete and refined mechanical profile of the cells during cell signaling.
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Affiliation(s)
- Ruiguo Yang
- Department of Electrical and Computer Engineering, Michigan State University, East Lansing, Michigan 48824, United States
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Applying label-free dynamic mass redistribution technology to frame signaling of G protein-coupled receptors noninvasively in living cells. Nat Protoc 2011; 6:1748-60. [PMID: 22015845 DOI: 10.1038/nprot.2011.386] [Citation(s) in RCA: 130] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Label-free dynamic mass redistribution (DMR) is a cutting-edge assay technology that enables real-time detection of integrated cellular responses in living cells. It relies on detection of refractive index alterations on biosensor-coated microplates that originate from stimulus-induced changes in the total biomass proximal to the sensor surface. Here we describe a detailed protocol to apply DMR technology to frame functional behavior of G protein-coupled receptors that are traditionally examined with end point assays on the basis of detection of individual second messengers, such as cAMP, Ca(2+) or inositol phosphates. The method can be readily adapted across diverse cellular backgrounds (adherent or suspension), including primary human cells. Real-time recordings can be performed in 384-well microtiter plates and be completed in 2 h, or they can be extended to several hours depending on the biological question to be addressed. The entire procedure, including cell harvesting and DMR detection, takes 1-2 d.
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Abstract
Label-free biosensors for studying cell biology have finally come of age. Recent developments have advanced the biosensors from low throughput and high maintenance research tools to high throughput and low maintenance screening platforms. In parallel, the biosensors have evolved from an analytical tool solely for molecular interaction analysis to powerful platforms for studying cell biology at the whole cell level. This paper presents historical development, detection principles, and applications in cell biology of label-free biosensors. Future perspectives are also discussed.
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Affiliation(s)
- Ye Fang
- Biochemical Technologies, Science and Technology Division, Corning Inc., Corning, NY 14831, USA
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