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Swinton DJ, Zhang H, Boroujerdi AFB, Tyree KL, Burke RA, Turner MF, Salia IH, McClary TS. Comparative Analysis of Au and Au@SiO 2 Nanoparticle-Protein Interactions for Evaluation as Platforms in Theranostic Applications. ACS Omega 2020; 5:6348-6357. [PMID: 32258869 PMCID: PMC7114161 DOI: 10.1021/acsomega.9b03716] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Accepted: 01/16/2020] [Indexed: 06/11/2023]
Abstract
Gold nanoparticles are utilized in a variety of sensing and detection technologies because of their unique physiochemical properties. Their tunable size, shape, and surface charge enable them to be used in an array of platforms. The purpose of this study is to conduct a thorough spectroscopic characterization of Au and functionalized hybrid Au@SiO2 nanoparticles under physiological conditions and in the presence of two proteins known to be abundant in serum, bovine serum albumin and human ubiquitin. The information obtained from this study will enable us to develop design principles to synthesize an array of surface-enhanced Raman spectroscopy-based nanoparticles as platforms for theranostic applications. We are particularly interested in tailoring the surface chemistry of the Au@SiO2 nanoparticles for applications in theranostic technologies. We employ common spectroscopic techniques, with particular emphasis on circular dichroism and heteronuclear single quantum correlation nuclear magnetic resonance (HSQC NMR) spectroscopy, as combinatorial tools to understand protein conformational dynamics, binding site interactions, and protein corona for the design of nanoparticles capable of reaching their intended target in vivo. Our results conclude that protein adsorption onto the nanoparticle surface prevents nanoparticle aggregation. We observed that varying the ionic strength and type of ion influences the aggregation and aggregation rate of each respective nanoparticle. The conformation of proteins and the absorption of proteins on the surface of Au nanoparticles are also influenced by ionic strength. Using two-dimensional [15N-1H]-HSQC NMR experiments to compare the interactions of Au and Au@SiO2 nanoparticles with 15N-ubiquitin, we observed small chemical shift perturbations in some amino acid peaks and differences in binding site interactions with ubiquitin and respective nanoparticles.
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Affiliation(s)
- Derrick J. Swinton
- Department
of Chemistry, Claflin University, Orangeburg, South Carolina 29115, United States
| | - Hongxia Zhang
- Department
of Chemistry, Claflin University, Orangeburg, South Carolina 29115, United States
| | - Arezue F. B. Boroujerdi
- Department
of Chemistry, Claflin University, Orangeburg, South Carolina 29115, United States
| | - Keyana L. Tyree
- Department
of Chemistry, Claflin University, Orangeburg, South Carolina 29115, United States
| | - Ricardo A. Burke
- Department
of Chemistry, Claflin University, Orangeburg, South Carolina 29115, United States
| | - Makayla F. Turner
- Department
of Chemistry, Claflin University, Orangeburg, South Carolina 29115, United States
| | - Imrana H. Salia
- Department
of Chemistry, Claflin University, Orangeburg, South Carolina 29115, United States
| | - Tekiah S. McClary
- Department
of Biology, Spelman College, Atlanta, Georgia 30314, United States
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Jones KA, Kim PD, Patel BB, Kelsen SG, Braverman A, Swinton DJ, Gafken PR, Jones LA, Lane WS, Neveu JM, Leung HCE, Shaffer SA, Leszyk JD, Stanley BA, Fox TE, Stanley A, Hall MJ, Hampel H, South CD, de la Chapelle A, Burt RW, Jones DA, Kopelovich L, Yeung AT. Immunodepletion plasma proteomics by tripleTOF 5600 and Orbitrap elite/LTQ-Orbitrap Velos/Q exactive mass spectrometers. J Proteome Res 2013; 12:4351-65. [PMID: 24004147 DOI: 10.1021/pr400307u] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Plasma proteomic experiments performed rapidly and economically using several of the latest high-resolution mass spectrometers were compared. Four quantitative hyperfractionated plasma proteomics experiments were analyzed in replicates by two AB SCIEX TripleTOF 5600 and three Thermo Scientific Orbitrap (Elite/LTQ-Orbitrap Velos/Q Exactive) instruments. Each experiment compared two iTRAQ isobaric-labeled immunodepleted plasma proteomes, provided as 30 labeled peptide fractions, and 480 LC-MS/MS runs delivered >250 GB of data in 2 months. Several analysis algorithms were compared. At 1% false discovery rate, the relative comparative findings concluded that the Thermo Scientific Q Exactive Mass Spectrometer resulted in the highest number of identified proteins and unique sequences with iTRAQ quantitation. The confidence of iTRAQ fold-change for each protein is dependent on the overall ion statistics (Mascot Protein Score) attainable by each instrument. The benchmarking also suggested how to further improve the mass spectrometry parameters and HPLC conditions. Our findings highlight the special challenges presented by the low abundance peptide ions of iTRAQ plasma proteome because the dynamic range of plasma protein abundance is uniquely high compared with cell lysates, necessitating high instrument sensitivity.
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Affiliation(s)
| | | | | | - Steven G Kelsen
- Temple University School of Medicine, Philadelphia, PA 19140
| | - Alan Braverman
- Temple University School of Medicine, Philadelphia, PA 19140
| | | | - Philip R Gafken
- Proteomics Shared Resources, Fred Hutchinson Cancer Research Center, Seattle, WA 98109
| | - Lisa A Jones
- Proteomics Shared Resources, Fred Hutchinson Cancer Research Center, Seattle, WA 98109
| | - William S Lane
- Mass Spectrometry and Proteomics Resource Laboratory, Harvard University, Cambridge, MA 02138
| | - John M Neveu
- Mass Spectrometry and Proteomics Resource Laboratory, Harvard University, Cambridge, MA 02138
| | - Hon-Chiu E Leung
- Mass Spectrometry and Proteomics Core Facility, Baylor College of Medicine, Houston, TX 77030
| | - Scott A Shaffer
- Proteomics and Mass Spectrometry Facility, University of Massachusetts Medical School, Worcester, MA 01545
| | - John D Leszyk
- Proteomics and Mass Spectrometry Facility, University of Massachusetts Medical School, Worcester, MA 01545
| | - Bruce A Stanley
- Mass Spectrometry Core, Penn State College of Medicine, Hershey, PA 17033
| | - Todd E Fox
- Mass Spectrometry Core, Penn State College of Medicine, Hershey, PA 17033
| | - Anne Stanley
- Mass Spectrometry Core, Penn State College of Medicine, Hershey, PA 17033
| | | | - Heather Hampel
- Human Cancer Genetics Program, the Ohio State University, Columbus, OH 43210
| | - Christopher D South
- Human Cancer Genetics Program, the Ohio State University, Columbus, OH 43210
| | | | - Randall W Burt
- Huntsman Cancer Institute, the U. of Utah, Salt Lake City, UT 84112
| | - David A Jones
- Huntsman Cancer Institute, the U. of Utah, Salt Lake City, UT 84112
| | - Levy Kopelovich
- Division of Cancer Prevention, National Cancer Institute, Bethesda, MD 20892
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3
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Affiliation(s)
- Mary J. Wirth
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716
| | - Derrick J. Swinton
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716
| | - Melody D. Ludes
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716
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Swinton DJ, Wirth MJ. Single Molecule Study of the Lateral Transport of Four Homooligoncleotides at the Interface of Water and Chemically Modifed Silica. J Phys Chem B 2001. [DOI: 10.1021/jp011234n] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Derrick J. Swinton
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716
| | - Mary J. Wirth
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716
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5
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Affiliation(s)
- Mary J. Wirth
- Department of Chemistry & Biochemistry, University of Delaware, Newark, Delaware 19716
| | - Derrick J. Swinton
- Department of Chemistry & Biochemistry, University of Delaware, Newark, Delaware 19716
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7
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Affiliation(s)
- Mary J. Wirth
- Department of Chemistry & Biochemistry, University of Delaware, Newark, Delaware 19716
| | - Derrick J. Swinton
- Department of Chemistry & Biochemistry, University of Delaware, Newark, Delaware 19716
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