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Boclinville A, Vandevenne M, Ambroggio E, Thelen N, Thiry M, Jacobs N, Brans A, Fillet M, Servais AC. Interaction studies between human papillomavirus virus-like particles and laminin 332 by affinity capillary electrophoresis assisted by bio-layer interferometry. Talanta 2024; 270:125602. [PMID: 38199121 DOI: 10.1016/j.talanta.2023.125602] [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] [Received: 09/29/2023] [Revised: 12/22/2023] [Accepted: 12/23/2023] [Indexed: 01/12/2024]
Abstract
Human papillomavirus (HPV) interacts, in vitro, with laminin 332 (LN332), a key component of the extracellular matrix. In this study, we performed bio-layer interferometry (BLI) and affinity capillary electrophoresis (ACE) to investigate the binding properties of this interaction. Virus-like particles (VLPs), composed of the HPV16 L1 major capsid protein, were used as HPV model and LN332 as the VLPs binding partner. Using BLI, we quantitatively determined the kinetics of the interaction, via the measurement of VLP binding and release from LN332 immobilized onto the surface of aminopropylsilane biosensors. We found an averaged kon of 1.74 x 104 M-1s-1 and an averaged koff of 1.50 x 10-4 s-1. Furthermore, an ACE method was developed to study the interaction under physiological conditions, where the interactants are moving freely in solution, without any fluorescence labeling. Specifically, a constant amount of HPV16-VLPs was preincubated with increasing LN332 concentrations and then the samples were injected in the capillary electrophoresis instrument. A shift in the migration time of the HPV16-VLP/LN332 complexes, carrying an increasing number of LN332 molecules bound per VLP, was observed. The mobility of the complexes was found to decrease with increasing LN332 concentrations in the sample. It was used to quantify stability constant. From BLI and ACE approaches, we reported an apparent equilibrium dissociation constant in the nanomolar range (8.89 nM and 17.7 nM, respectively) for the complex between HPV16-VLPs and LN332.
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Affiliation(s)
- Aurore Boclinville
- Laboratory for the Analysis of Medicines (LAM), Center for Interdisciplinary Research on Medicines (CIRM), University of Liège, Liège, Belgium
| | - Marylène Vandevenne
- InBioS - Centre for Protein Engineering, Département des Sciences de La Vie, University of Liège, Liège, Belgium
| | - Ernesto Ambroggio
- InBioS - Centre for Protein Engineering, Département des Sciences de La Vie, University of Liège, Liège, Belgium
| | - Nicolas Thelen
- Cellular and Tissular Biology, GIGA-Neurosciences, University of Liège, Liège, Belgium
| | - Marc Thiry
- Cellular and Tissular Biology, GIGA-Neurosciences, University of Liège, Liège, Belgium
| | - Nathalie Jacobs
- Cellular and Molecular Immunology, GIGA-Research, University of Liège, Liège, Belgium
| | - Alain Brans
- InBioS - Centre for Protein Engineering, Département des Sciences de La Vie, University of Liège, Liège, Belgium
| | - Marianne Fillet
- Laboratory for the Analysis of Medicines (LAM), Center for Interdisciplinary Research on Medicines (CIRM), University of Liège, Liège, Belgium
| | - Anne-Catherine Servais
- Laboratory for the Analysis of Medicines (LAM), Center for Interdisciplinary Research on Medicines (CIRM), University of Liège, Liège, Belgium.
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Opallage PM, De Silva M, Dunn RC. Dual detection high-speed capillary electrophoresis for simultaneous serum protein analysis and immunoassays. Sci Rep 2022; 12:1951. [PMID: 35121780 PMCID: PMC8817013 DOI: 10.1038/s41598-022-05956-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 01/17/2022] [Indexed: 11/09/2022] Open
Abstract
Serum protein electrophoresis (SPE) separates serum proteins into bands whose shape and amplitude can alert clinicians to a range of disorders. This is followed by more specific immunoassays to quantify important antigens and confirm a diagnosis. Here we develop a high-speed capillary electrophoresis (HSCE) platform capable of simultaneous SPE and immunoassay measurements. A single laser excitation source is focused into the detection zone of the capillary to measure both refractive index (SPE) and fluorescence signals (immunoassays). The refractive index signal measures characteristic SPE profiles for human serum separated in 100 mM boric acid (pH 10), 100 mM arginine (pH 11), and 20 mM CHES (pH 10). For the immunoassay, the fluorescence electropherograms reveal that CHES provides the optimal buffer for measuring the immunocomplex and separating it from the free antigen. Immunoassays in CHES yield a LOD of 23 nM and a LOQ of 70 nM for the detection of fluorescein. The high pH reduces protein adsorption but reduces antibody affinity. Preliminary studies carried out in 50 mM barbital at pH 8 show improved stability of the immunocomplex and better separation for immunoassay quantification. Further optimization will open new capabilities for measuring orthogonal diagnostic signals in seconds with HSCE.
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Affiliation(s)
- Prabhavie M Opallage
- Ralph N. Adams Institute for Bioanalytical Chemistry, Department of Chemistry, University of Kansas, 2030 Becker Drive, Lawrence, KS, 66047, USA
| | - Miyuru De Silva
- Ralph N. Adams Institute for Bioanalytical Chemistry, Department of Chemistry, University of Kansas, 2030 Becker Drive, Lawrence, KS, 66047, USA
| | - Robert C Dunn
- Ralph N. Adams Institute for Bioanalytical Chemistry, Department of Chemistry, University of Kansas, 2030 Becker Drive, Lawrence, KS, 66047, USA.
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Zhang Z, Zhang Y, Song S, Yin L, Sun D, Gu J. Recent advances in the bioanalytical methods of polyethylene glycols and PEGylated pharmaceuticals. J Sep Sci 2020; 43:1978-1997. [DOI: 10.1002/jssc.201901340] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Revised: 02/15/2020] [Accepted: 02/16/2020] [Indexed: 12/23/2022]
Affiliation(s)
- Zhi Zhang
- Research Center for Drug Metabolism, College of Life ScienceJilin University Changchun P. R. China
- Beijing Institute of Drug Metabolism Beijing P. R. China
| | - Yuyao Zhang
- Research Center for Drug Metabolism, College of Life ScienceJilin University Changchun P. R. China
- Beijing Institute of Drug Metabolism Beijing P. R. China
| | - Shiwen Song
- Research Center for Drug Metabolism, College of Life ScienceJilin University Changchun P. R. China
- Beijing Institute of Drug Metabolism Beijing P. R. China
| | - Lei Yin
- Research Center for Drug Metabolism, College of Life ScienceJilin University Changchun P. R. China
- Research Institute of Translational MedicineThe First Bethune Hospital of Jilin University Changchun P. R. China
| | - Dong Sun
- Department of Biopharmacy, College of Life ScienceJilin University Changchun P. R. China
- Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education”Yantai University Yantai P. R. China
| | - Jingkai Gu
- Research Center for Drug Metabolism, College of Life ScienceJilin University Changchun P. R. China
- Beijing Institute of Drug Metabolism Beijing P. R. China
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Moser AC, Trenhaile S, Frankenberg K. Studies of antibody-antigen interactions by capillary electrophoresis: A review. Methods 2018; 146:66-75. [DOI: 10.1016/j.ymeth.2018.03.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2017] [Revised: 03/08/2018] [Accepted: 03/13/2018] [Indexed: 11/25/2022] Open
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Sautrey G, Brié A, Gantzer C, Walcarius A. MS2 and Qβ bacteriophages reveal the contribution of surface hydrophobicity on the mobility of non-enveloped icosahedral viruses in SDS-based capillary zone electrophoresis. Electrophoresis 2017; 39:377-385. [PMID: 29072777 DOI: 10.1002/elps.201700352] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 10/10/2017] [Accepted: 10/13/2017] [Indexed: 01/13/2023]
Abstract
SDS is commonly employed as BGE additive in CZE analysis of non-enveloped icosahedral viruses. But the way by which SDS interacts with the surface of such viruses remains to date poorly known, making complicate to understand their behavior during a run. In this article, two related bacteriophages, MS2 and Qβ, are used as model to investigate the migration mechanism of non-enveloped icosahedral viruses in SDS-based CZE. Both phages are characterized by similar size and surface charge but significantly different surface hydrophobicity (Qβ > MS2, where '>' means 'more hydrophobic than'). By comparing their electrophoretic mobility in the presence or not of SDS on both sides of the CMC, we show that surface hydrophobicity of phages is a key factor influencing their mobility and that SDS-virus association is driven by hydrophobic interactions at the surface of virions. The CZE analyses of heated MS2 particles, which over-express hydrophobic domains at their surface, confirm this finding. The correlations between the present results and others from the literature suggest that the proposed mechanism might not be exclusive to the bacteriophages examined here.
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Affiliation(s)
- Guillaume Sautrey
- Laboratoire de Chimie Physique et Microbiologie pour l'Environnement (LCPME), UMR 7564 CNRS-Université de Lorraine, Villers-lès-Nancy, France
| | - Adrien Brié
- Laboratoire de Chimie Physique et Microbiologie pour l'Environnement (LCPME), UMR 7564 CNRS-Université de Lorraine, Villers-lès-Nancy, France
| | - Christophe Gantzer
- Laboratoire de Chimie Physique et Microbiologie pour l'Environnement (LCPME), UMR 7564 CNRS-Université de Lorraine, Villers-lès-Nancy, France
| | - Alain Walcarius
- Laboratoire de Chimie Physique et Microbiologie pour l'Environnement (LCPME), UMR 7564 CNRS-Université de Lorraine, Villers-lès-Nancy, France
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Influence of Analyte Concentration on Stability Constant Values Determined by Capillary Electrophoresis. J Chromatogr Sci 2016; 54:1253-62. [DOI: 10.1093/chromsci/bmw057] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Indexed: 11/14/2022]
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Kašička V. Outlook--Analysis of amino acids, peptides, and proteins: a virtual special issue. J Sep Sci 2016; 38:vii-viii. [PMID: 25885353 DOI: 10.1002/jssc.201570075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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