151
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Emirbayer PE, Gerer KF, Hoyer S, Pischetsrieder M. Targeted label-free quantification of interleukin-8 in PMA-activated U937 cell secretome by nanoLC-ESI-MS/MS-sSRM. Proteomics 2017; 17. [PMID: 28256805 DOI: 10.1002/pmic.201600455] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 02/15/2017] [Accepted: 02/28/2017] [Indexed: 12/22/2022]
Abstract
Monocytes are a part of the innate immune system. Their differentiation into macrophages changes their cellular proteome and secretome. Particularly secretome components such as cytokines are crucial for immune response and inflammation in many diseases. Differentiation of human lymphoma cell line U937 can be triggered by phorbol 12-myristate 13-acetate (PMA). Screening of the cytokine release in U937 upon PMA stimulation by cytometric bead array almost exclusively showed interleukin-8 (IL-8). Next, a label-free nanoLC-ESI-MS/MS-sSRM method for quantification of IL-8 in the cell secretome was established and applied to monitor the time kinetics of PMA treatment in different concentrations. Targeted secretome analysis was achieved by scheduled SRM-MS using one proteotypic peptide as precursor ion and four mass transitions. Label-free quantification was performed by external calibration using IL-8 standard. Validation results indicated that the method was suited for the quantification of IL-8 in the secretome. The maximal IL-8 release of 62.4 ng/mL was observed after incubating cells treated by 50 ng/mL PMA for 48 h. The method can now be used for quantification of IL-8 release from different cells under various conditions. Furthermore, it can be easily expanded to other secreted proteins detected by untargeted screening methods.
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Affiliation(s)
- Pelin Esma Emirbayer
- Food Chemistry Unit, Department of Chemistry and Pharmacy, Emil Fischer Center, Friedrich-Alexander Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Kerstin F Gerer
- Department of Dermatology, Forschungscampus, Universitätsklinikum Erlangen, Erlangen, Germany.,Department of Genetics, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Stefanie Hoyer
- Department of Dermatology, Forschungscampus, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Monika Pischetsrieder
- Food Chemistry Unit, Department of Chemistry and Pharmacy, Emil Fischer Center, Friedrich-Alexander Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
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152
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Cheruiyot C, Pataki Z, Williams R, Ramratnam B, Li M. SILAC Based Proteomic Characterization of Exosomes from HIV-1 Infected Cells. J Vis Exp 2017. [PMID: 28287540 DOI: 10.3791/54799] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Proteomics is the large-scale analysis of proteins. Proteomic techniques, such as liquid chromatography tandem mass spectroscopy (LC-MS/MS), can characterize thousands of proteins at a time. These powerful techniques allow us to have a systemic understanding of cellular changes, especially when cells are subjected to various stimuli, such as infections, stresses, and specific test conditions. Even with recent developments, analyzing the exosomal proteome is time-consuming and often involves complex methodologies. In addition, the resultant large dataset often needs robust and streamlined analysis in order for researchers to perform further downstream studies. Here, we describe a SILAC-based protocol for characterizing the exosomal proteome when cells are infected with HIV-1. The method is based on simple isotope labeling, isolation of exosomes from differentially labeled cells, and mass spectrometry analysis. This is followed by detailed data mining and bioinformatics analysis of the proteomic hits. The resultant datasets and candidates are easy to understand and often offer a wealth of information that is useful for downstream analysis. This protocol is applicable to other subcellular compartments and a wide range of test conditions.
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Affiliation(s)
| | | | | | - Bharat Ramratnam
- COBRE Center for Cancer Research, Lifespan Laboratories, Rhode Island and Miriam Hospitals; Division of Infectious Diseases, Department of Medicine, Warren Alpert Medical School, Brown University
| | - Ming Li
- Division of Infectious Diseases, Department of Medicine, Warren Alpert Medical School, Brown University;
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153
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Phillip A, Thierry W, Christian L, Anja B, Jochen E, Thomas M, Claudia P, Coralie E, Olivier H. Production and application of high quality stable isotope-labeled human immunoglobulin G1 for mass spectrometry analysis. J Labelled Comp Radiopharm 2017; 60:160-167. [DOI: 10.1002/jlcr.3486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Revised: 11/11/2016] [Accepted: 12/06/2016] [Indexed: 11/06/2022]
Affiliation(s)
| | - Wolf Thierry
- Novartis Pharma AG; DMPK, DMBA-BA; Basel Switzerland
| | | | | | | | | | | | | | - Heudi Olivier
- Novartis Pharma AG; DMPK, DMBA-BA; Basel Switzerland
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154
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Cheung CSF, Anderson KW, Patel PM, Cade KL, Phinney KW, Turko IV. A new approach to quantification of mAb aggregates using peptide affinity probes. Sci Rep 2017; 7:42497. [PMID: 28186164 PMCID: PMC5301252 DOI: 10.1038/srep42497] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 01/11/2017] [Indexed: 12/19/2022] Open
Abstract
Using mAbs as therapeutic molecules is complicated by the propensity of mAbs to aggregate at elevated concentrations, which can lead to a variety of adverse events in treatment. Here, we describe a proof-of-concept for new methodology to detect and quantify mAb aggregation. Assay development included using an aggregated mAb as bait for screening of phage display peptide library and identifying those peptides with random sequence which can recognize mAb aggregates. Once identified, the selected peptides can be used for developing quantitative methods to assess mAb aggregation. Results indicate that a peptide binding method coupled with mass spectrometric detection of bound peptide can quantify mAb aggregation and potentially be useful for monitoring aggregation propensity of therapeutic protein candidates.
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Affiliation(s)
- Crystal S F Cheung
- Biomolecular Measurement Division, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA.,Institute for Bioscience and Biotechnology Research, Rockville, MD 20850, USA
| | - Kyle W Anderson
- Biomolecular Measurement Division, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA.,Institute for Bioscience and Biotechnology Research, Rockville, MD 20850, USA
| | - Pooja M Patel
- Institute for Bioscience and Biotechnology Research, Rockville, MD 20850, USA
| | - Keale L Cade
- Institute for Bioscience and Biotechnology Research, Rockville, MD 20850, USA
| | - Karen W Phinney
- Biomolecular Measurement Division, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
| | - Illarion V Turko
- Biomolecular Measurement Division, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA.,Institute for Bioscience and Biotechnology Research, Rockville, MD 20850, USA
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155
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Ravipaty S, Wu W, Dalvi A, Tanna N, Andreazi J, Friss T, Klotz A, Liao C, Garren J, Schofield S, Diamandis EP, Klein EA, Dobi A, Srivastava S, Tekumalla P, Kiebish MA, Vishnudas V, Sarangarajan RP, Narain NR, Akmaev VR. Clinical Validation of a Serum Protein Panel (FLNA, FLNB and KRT19) for Diagnosis of Prostate Cancer. ACTA ACUST UNITED AC 2017; 8. [PMID: 29682400 PMCID: PMC5909981 DOI: 10.4172/2155-9929.1000323] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
This study reports on the development of a novel serum protein panel of three prostate cancer biomarkers, Filamin A, Filamin B and Keratin-19 (FLNA, FLNB and KRT19) using multivariate models for disease screening and prognosis. ELISA and IPMRM (LC-MS/MS) based assays were developed and analytically validated by quantitative measurements of the biomarkers in serum. Retrospectively collected and clinically annotated serum samples with PSA values and Gleason scores were analyzed from subjects who underwent prostate biopsy, and showed no evidence of cancer with or without indication of prostatic hyperplasia, or had a definitive pathology diagnosis of prostatic adenocarcinoma. Probit linear regression models were used to combine the analytes into score functions to address the following clinical questions: does the biomarker test augment PSA for population screening? Can aggressive disease be differentiated from lower risk disease, and can the panel discriminate between prostate cancer and benign prostate hyperplasia? Modelling of the data showed that the new prostate biomarkers and PSA in combination were better than PSA alone in identifying prostate cancer, improved the prediction of high and low risk disease, and improved prediction of cancer versus benign prostate hyperplasia.
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Affiliation(s)
- Shobha Ravipaty
- Berg, LLC, 500 Old Connecticut Path Framingham, MA 01701, USA
| | - Wenfang Wu
- Berg, LLC, 500 Old Connecticut Path Framingham, MA 01701, USA
| | - Aditee Dalvi
- Berg, LLC, 500 Old Connecticut Path Framingham, MA 01701, USA
| | - Nikunj Tanna
- Berg, LLC, 500 Old Connecticut Path Framingham, MA 01701, USA
| | - Joe Andreazi
- Berg, LLC, 500 Old Connecticut Path Framingham, MA 01701, USA
| | - Tracey Friss
- Berg, LLC, 500 Old Connecticut Path Framingham, MA 01701, USA
| | - Allison Klotz
- Berg, LLC, 500 Old Connecticut Path Framingham, MA 01701, USA
| | - Chenchen Liao
- Berg, LLC, 500 Old Connecticut Path Framingham, MA 01701, USA
| | - Jeonifer Garren
- Berg, LLC, 500 Old Connecticut Path Framingham, MA 01701, USA
| | - Sally Schofield
- Berg, LLC, 500 Old Connecticut Path Framingham, MA 01701, USA
| | - Eleftherios P Diamandis
- Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Eric A Klein
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, USA
| | - Albert Dobi
- Department of Surgery, Center for Prostate Disease Research, Uniformed Services University of the Health Sciences and the Walter Reed Military Medical Center, Bethesda, Maryland, USA
| | - Shiv Srivastava
- Department of Surgery, Center for Prostate Disease Research, Uniformed Services University of the Health Sciences and the Walter Reed Military Medical Center, Bethesda, Maryland, USA
| | | | | | - Vivek Vishnudas
- Berg, LLC, 500 Old Connecticut Path Framingham, MA 01701, USA
| | | | - Niven R Narain
- Berg, LLC, 500 Old Connecticut Path Framingham, MA 01701, USA
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156
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Saia-Cereda VM, Cassoli JS, Martins-de-Souza D, Nascimento JM. Psychiatric disorders biochemical pathways unraveled by human brain proteomics. Eur Arch Psychiatry Clin Neurosci 2017; 267:3-17. [PMID: 27377417 DOI: 10.1007/s00406-016-0709-2] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 06/25/2016] [Indexed: 12/17/2022]
Abstract
Approximately 25 % of the world population is affected by a mental disorder at some point in their life. Yet, only in the mid-twentieth century a biological cause has been proposed for these diseases. Since then, several studies have been conducted toward a better comprehension of those disorders, and although a strong genetic influence was revealed, the role of these genes in disease mechanism is still unclear. This led most recent studies to focus on the molecular basis of mental disorders. One line of investigation that has risen in the post-genomic era is proteomics, due to its power of revealing proteins and biochemical pathways associated with biological systems. Therefore, this review compiled and analyzed data of differentially expressed proteins, which were found in postmortem brain studies of the three most prevalent psychiatric diseases: schizophrenia, bipolar disorder and major depressive disorders. Overviewing both the proteomic methods used in postmortem brain studies, the most consistent metabolic pathways found altered in these diseases. We have unraveled those disorders share about 21 % of proteins affected, and though most are related to energy metabolism pathways deregulation, the main differences found are 14-3-3-mediated signaling in schizophrenia, mitochondrial dysfunction in bipolar disorder and oxidative phosphorylation in depression.
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Affiliation(s)
- Verônica M Saia-Cereda
- Laboratory of Neuroproteomics, Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas (UNICAMP), Rua Monteiro Lobato, 255, Campinas, SP, 13083-862, Brazil
| | - Juliana S Cassoli
- Laboratory of Neuroproteomics, Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas (UNICAMP), Rua Monteiro Lobato, 255, Campinas, SP, 13083-862, Brazil
| | - Daniel Martins-de-Souza
- Laboratory of Neuroproteomics, Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas (UNICAMP), Rua Monteiro Lobato, 255, Campinas, SP, 13083-862, Brazil. .,UNICAMP's Neurobiology Center, Campinas, Brazil.
| | - Juliana M Nascimento
- Laboratory of Neuroproteomics, Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas (UNICAMP), Rua Monteiro Lobato, 255, Campinas, SP, 13083-862, Brazil.,D'Or Institute for Research and Education (IDOR), Rio de Janeiro, Brazil
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157
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Zhu R, Song E, Hussein A, Kobeissy FH, Mechref Y. Glycoproteins Enrichment and LC-MS/MS Glycoproteomics in Central Nervous System Applications. Methods Mol Biol 2017; 1598:213-227. [PMID: 28508363 DOI: 10.1007/978-1-4939-6952-4_9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Proteins and glycoproteins play important biological roles in central nervous systems (CNS). Qualitative and quantitative evaluation of proteins and glycoproteins expression in CNS is critical to reveal the inherent biomolecular mechanism of CNS diseases. This chapter describes proteomic and glycoproteomic approaches based on liquid chromatography/tandem mass spectrometry (LC-MS or LC-MS/MS) for the qualitative and quantitative assessment of proteins and glycoproteins expressed in CNS. Proteins and glycoproteins, extracted by a mass spectrometry friendly surfactant from CNS samples, were subjected to enzymatic (tryptic) digestion and three down-stream analyses: (1) a nano LC system coupled with a high-resolution MS instrument to achieve qualitative proteomic profile, (2) a nano LC system combined with a triple quadrupole MS to quantify identified proteins, and (3) glycoprotein enrichment prior to LC-MS/MS analysis. Enrichment techniques can be applied to improve coverage of low abundant glycopeptides/glycoproteins. An example described in this chapter is hydrophilic interaction liquid chromatographic (HILIC) enrichment to capture glycopeptides, allowing efficient removal of peptides. The combination of three LC-MS/MS-based approaches is capable of the investigation of large-scale proteins and glycoproteins from CNS with an in-depth coverage, thus offering a full view of proteins and glycoproteins changes in CNS.
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Affiliation(s)
- Rui Zhu
- Department of Chemistry and Biochemistry, Texas Tech University, Memorial Circle & Boston Ave., Box 41061, Lubbock, TX, 79409-1061, USA
| | - Ehwang Song
- Department of Chemistry and Biochemistry, Texas Tech University, Memorial Circle & Boston Ave., Box 41061, Lubbock, TX, 79409-1061, USA
| | - Ahmed Hussein
- Department of Biotechnology, Institute of Graduate Studies and Research, University of Alexandria, Alexandria, 21526, Egypt
| | - Firas H Kobeissy
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, Beirut, Lebanon.,Department of Psychiatry, Center for Neuroproteomics and Biomarkers Research, University of Florida, Gainesville, FL, USA
| | - Yehia Mechref
- Department of Chemistry and Biochemistry, Texas Tech University, Memorial Circle & Boston Ave., Box 41061, Lubbock, TX, 79409-1061, USA.
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158
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Russo P, Hood BL, Bateman NW, Conrads TP. Quantitative Mass Spectrometry by Isotope Dilution and Multiple Reaction Monitoring (MRM). Methods Mol Biol 2017; 1606:313-332. [PMID: 28502009 DOI: 10.1007/978-1-4939-6990-6_20] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Selected reaction monitoring (SRM) is used in molecular profiling to detect and quantify specific known proteins in complex mixtures. Using isotope dilution (Barnidge et al., Anal Chem 75(3):445-451, 2003) methodologies, peptides can be quantified without the need for an antibody-based method. Selected reaction monitoring assays employ electrospray ionization mass spectrometry (ESI-MS) followed by two stages of mass selection: a first stage where the mass of the peptide ion is selected and, after fragmentation by collision-induced dissociation (CID), a second stage (tandem MS) where either a single (e.g., SRM) or multiple (multiple reaction monitoring, MRM) specific peptide fragment ions are transmitted for detection. The MRM experiment is accomplished by specifying the parent masses of the selected endogenous and isotope-labeled peptides for MS/MS fragmentation and then monitoring fragment ions of interest, using their intensities/abundances and relative ratios to quantify the parent protein of interest. In this example protocol, we will utilize isotope dilution MRM-MS to quantify in absolute terms the total levels of the protein of interest, ataxia telangiectasia mutated (ATM) serine/threonine protein kinase. Ataxia telangiectasia mutated (ATM) phosphorylates several key proteins that initiate activation of the DNA damage checkpoint leading to cell cycle arrest.
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Affiliation(s)
- Paul Russo
- Center for Applied Proteomics and Molecular Medicine, George Mason University, 10920 George Mason Circle MS1A9, Manassas, VA, 20110, USA.
| | - Brian L Hood
- DOD Gynecologic Cancer Center of Excellence, Annandale, VA, 22003, USA
| | | | - Thomas P Conrads
- Inova Dwight and Martha Schar Cancer Institute, 3300 Gallows Road, Falls Church, VA, 22042, USA. .,Gynecologic Cancer Center of Excellence, Women's Health Integrated Research Center, 3289 Woodburn Rd, Suite 375, Annandale, VA, 22003, USA.
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159
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Bradford C, Severinsen R, Pugmire T, Rasmussen M, Stoddard K, Uemura Y, Wheelwright S, Mentinova M, Chelsky D, Hunsucker SW, Kearney P, Hickok D, Fleischer TC, Ichetovkin I, Boniface JJ, Critchfield GC, Peltier JM. Analytical validation of protein biomarkers for risk of spontaneous preterm birth. CLINICAL MASS SPECTROMETRY (DEL MAR, CALIF.) 2017; 3:25-38. [PMID: 39193098 PMCID: PMC11322780 DOI: 10.1016/j.clinms.2017.06.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 06/09/2017] [Accepted: 06/10/2017] [Indexed: 10/19/2022]
Abstract
Presented are the validation results of a second-generation assay for determining the relative abundances of two protein biomarkers found in maternal serum that predict an individual's risk of spontaneous preterm birth. The sample preparation workflow is complex, consisting of immuno-depletion of high-abundance serum proteins, tryptic digestion of the immuno-depleted fraction to generate surrogate peptide analytes, and detection by tandem mass spectrometry. The method was determined to be robust on observation of the following characteristics: classifier peptide detection precision was excellent; results were accurate when compared to a reference method; results were linear over a clinically relevant range; the limits of quantitation encompassed the range of expected results; and the method demonstrated analytical specificity and resilience to differences in patient serum and common endogenous interferents.
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Affiliation(s)
- Chad Bradford
- Sera Prognostics, Inc., 2749 East Parleys Way, Suite 200, Salt Lake City, UT 84109, USA
| | - Rob Severinsen
- Sera Prognostics, Inc., 2749 East Parleys Way, Suite 200, Salt Lake City, UT 84109, USA
| | - Trina Pugmire
- Sera Prognostics, Inc., 2749 East Parleys Way, Suite 200, Salt Lake City, UT 84109, USA
| | - Matison Rasmussen
- Sera Prognostics, Inc., 2749 East Parleys Way, Suite 200, Salt Lake City, UT 84109, USA
| | - Kathryn Stoddard
- Sera Prognostics, Inc., 2749 East Parleys Way, Suite 200, Salt Lake City, UT 84109, USA
| | - Yuta Uemura
- Sera Prognostics, Inc., 2749 East Parleys Way, Suite 200, Salt Lake City, UT 84109, USA
| | - Spencer Wheelwright
- Sera Prognostics, Inc., 2749 East Parleys Way, Suite 200, Salt Lake City, UT 84109, USA
| | - Marija Mentinova
- Caprion Biosciences, 201 Avenue Président Kennedy, Suite 3900, Montréal, Québec H2X 3Y7, Canada
| | - Daniel Chelsky
- Caprion Biosciences, 201 Avenue Président Kennedy, Suite 3900, Montréal, Québec H2X 3Y7, Canada
| | - Stephen W. Hunsucker
- Integrated Diagnostics, Inc., 219 Terry Avenue North, Suite 110, Seattle, WA 98101, USA
| | - Paul Kearney
- Integrated Diagnostics, Inc., 219 Terry Avenue North, Suite 110, Seattle, WA 98101, USA
| | - Durlin Hickok
- Sera Prognostics, Inc., 2749 East Parleys Way, Suite 200, Salt Lake City, UT 84109, USA
| | - Tracey C. Fleischer
- Sera Prognostics, Inc., 2749 East Parleys Way, Suite 200, Salt Lake City, UT 84109, USA
| | - Ilia Ichetovkin
- Sera Prognostics, Inc., 2749 East Parleys Way, Suite 200, Salt Lake City, UT 84109, USA
| | - J. Jay Boniface
- Sera Prognostics, Inc., 2749 East Parleys Way, Suite 200, Salt Lake City, UT 84109, USA
| | | | - John M. Peltier
- Sera Prognostics, Inc., 2749 East Parleys Way, Suite 200, Salt Lake City, UT 84109, USA
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160
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Rappold BA, Hoofnagle AN. Bias due to isotopic incorporation in both relative and absolute protein quantitation with carbon-13 and nitrogen-15 labeled peptides. CLINICAL MASS SPECTROMETRY (DEL MAR, CALIF.) 2017; 3:13-21. [PMID: 39193099 PMCID: PMC11322770 DOI: 10.1016/j.clinms.2017.04.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 04/22/2017] [Accepted: 04/22/2017] [Indexed: 11/23/2022]
Abstract
Mass spectrometry provides considerable benefits over other analytical techniques due to advantages imparted by the use of isotopically labeled internal standards. In some analytical approaches, the internal standard provides reference points for quantitative data reduction. However, there is an important phenomenon that occurs in the development of an internal standard, namely the distribution of naturally occurring isotopes is altered by artificial labeling. As a result, the number of molecules measured in each isotopic state (e.g., +0, +1, +2) varies between the manufactured internal standard and the naturally occurring unmodified analyte. This can create inaccuracies that are a function of the abundance, type and location of the isotopic labeling when internal standards act as the calibration material. In this study, theoretical examples calculated with naturally occurring isotopic incorporation, manufactured isotopic enrichment, and experimental data from comparative analysis of naturally and artificially labeled peptides were explored to demonstrate the variation in measurement between analytes and their stable, isotopically labeled internal standards.
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Affiliation(s)
- Brian A. Rappold
- Corresponding author at: Essential Testing, 1616 Eastport Plaza Dr, Collinsville, IL 62234, United States.
| | - Andrew N. Hoofnagle
- Essential Testing, Collinsville, IL 62234, United States
- Department of Laboratory Medicine, University of Washington, Seattle, WA 98195-7110, United States
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161
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Multiple and Selective Reaction Monitoring Using Triple Quadrupole Mass Spectrometer: Preclinical Large Cohort Analysis. Methods Mol Biol 2016; 1410:249-64. [PMID: 26867749 DOI: 10.1007/978-1-4939-3524-6_15] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Multiple reaction monitoring (MRM), sometimes referred to as selective reaction monitoring (SRM), is a mass spectrometry method that can target selective peptides for the detection and quantitation of a protein. Compared to traditional ELISA, MRM assays have a number of advantages including ease in multiplexing several proteins in the same assay and independence from the necessity for high-quality, expensive, and at times unreliable antibodies. Furthermore, MRM assays can be developed to quantify multiple proteoforms of a single protein allowing the quantification of allelic expression of a particular sequence polymorphism, protein isoform, as well as determining site occupancy of posttranslational modification(s). In this chapter, we describe our workflow for target peptide selection, assay optimization, and acquisition multiplexing. Our workflow is presented using the example of constrained MRM assays developed for the serum protein ApoL1 in its various proteoforms to highlight the specific technical considerations necessary for the difficult task of quantifying peptide targets based on highly specific amino acid sequences by MRM.
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162
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Lin F, Li Z, Hua Y, Lim YP. Proteomic profiling predicts drug response to novel targeted anticancer therapeutics. Expert Rev Proteomics 2016; 13:411-20. [PMID: 26954459 DOI: 10.1586/14789450.2016.1164043] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Most recently approved anti-cancer drugs by the US FDA are targeted therapeutic agents and this represents an important trend for future anticancer therapy. Unlike conventional chemotherapy that rarely considers individual differences, it is crucial for targeted therapies to identify the beneficial subgroup of patients for the treatment. Currently, genomics and transcriptomics are the major 'omic' analytics used in studies of drug response prediction. However, proteomic profiling excels both in its advantages of directly detecting an instantaneous dynamic of the whole proteome, which contains most current diagnostic markers and therapeutic targets. Moreover, proteomic profiling improves understanding of the mechanism for drug resistance and helps finding optimal combination therapy. This article reviews the recent success of applications of proteomic analytics in predicting the response to targeted anticancer therapeutics, and discusses the potential avenues and pitfalls of proteomic platforms and techniques used most in the field.
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Affiliation(s)
- Fan Lin
- a Department of Cell Biology , Nanjing Medical University , Nanjing , China.,b Department of Biochemistry , Yong Loo Lin School of Medicine, National University of Singapore , Singapore
| | - Zilin Li
- b Department of Biochemistry , Yong Loo Lin School of Medicine, National University of Singapore , Singapore
| | - Yunfen Hua
- c College of Pharmaceutical Science, Zhejiang University of Technology , Hangzhou , China
| | - Yoon Pin Lim
- b Department of Biochemistry , Yong Loo Lin School of Medicine, National University of Singapore , Singapore.,d Bioinformatics Institute, Agency for Science and Technology , Singapore.,e NUS Graduate School of Integrative Sciences and Technology , Singapore
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163
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SRM-based measurements of proprotein convertase subtilisin/kexin type 9 and lipoprotein(a) kinetics in nonhuman primate serum. Bioanalysis 2016; 8:2551-2563. [DOI: 10.4155/bio-2016-0146] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Aim: PCSK9 and Lp(a) have been identified as potential biomarkers for cardiovascular disease. The ability to measure protein turnover rates will provide insights into the dynamic properties of these proteins and lead to better understanding of their biological roles. We aimed to implement the stable isotope-labeled tracers ([2H3]-leucine) and develop a novel LC-selected reaction monitoring (SRM) mass spectrometry (MS) method to study the kinetics of PCSK9 and Lp(a). Results: A sensitive method using immunoaffinity enrichment coupled with LC-SRM MS was developed to measure the production and degradation rates of PCSK9 and Lp(a) in naive nonhuman primate serum. Comparable results were obtained from two different routes of tracer administration. Conclusion: Immunoaffinity enrichment coupled with LC-SRM MS demonstrated success in in vivo kinetic measurements of proteins with relatively slow turnover rate (Lp[a]) or low abundance (PCSK9) in serum.
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164
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Liu Z, Fan S, Liu H, Yu J, Qiao R, Zhou M, Yang Y, Zhou J, Xie P. Enhanced Detection of Low-Abundance Human Plasma Proteins by Integrating Polyethylene Glycol Fractionation and Immunoaffinity Depletion. PLoS One 2016; 11:e0166306. [PMID: 27832179 PMCID: PMC5104378 DOI: 10.1371/journal.pone.0166306] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Accepted: 10/26/2016] [Indexed: 01/27/2023] Open
Abstract
The enormous depth complexity of the human plasma proteome poses a significant challenge for current mass spectrometry-based proteomic technologies in terms of detecting low-level proteins in plasma, which is essential for successful biomarker discovery efforts. Typically, a single-step analytical approach cannot reduce this intrinsic complexity. Current simplex immunodepletion techniques offer limited capacity for detecting low-abundance proteins, and integrated strategies are thus desirable. In this respect, we developed an improved strategy for analyzing the human plasma proteome by integrating polyethylene glycol (PEG) fractionation with immunoaffinity depletion. PEG fractionation of plasma proteins is simple, rapid, efficient, and compatible with a downstream immunodepletion step. Compared with immunodepletion alone, our integrated strategy substantially improved the proteome coverage afforded by PEG fractionation. Coupling this new protocol with liquid chromatography-tandem mass spectrometry, 135 proteins with reported normal concentrations below 100 ng/mL were confidently identified as common low-abundance proteins. A side-by-side comparison indicated that our integrated strategy was increased by average 43.0% in the identification rate of low-abundance proteins, relying on an average 65.8% increase of the corresponding unique peptides. Further investigation demonstrated that this combined strategy could effectively alleviate the signal-suppressive effects of the major high-abundance proteins by affinity depletion, especially with moderate-abundance proteins after incorporating PEG fractionation, thereby greatly enhancing the detection of low-abundance proteins. In sum, the newly developed strategy of incorporating PEG fractionation to immunodepletion methods can potentially aid in the discovery of plasma biomarkers of therapeutic and clinical interest.
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Affiliation(s)
- Zhao Liu
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Institute of Neuroscience and the Collaborative Innovation Center for Brain Science, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Neurobiology, Chongqing, China
| | - Songhua Fan
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Institute of Neuroscience and the Collaborative Innovation Center for Brain Science, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Neurobiology, Chongqing, China
| | - Haipeng Liu
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Institute of Neuroscience and the Collaborative Innovation Center for Brain Science, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Neurobiology, Chongqing, China
| | - Jia Yu
- Institute of Neuroscience and the Collaborative Innovation Center for Brain Science, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Neurobiology, Chongqing, China
| | - Rui Qiao
- Institute of Neuroscience and the Collaborative Innovation Center for Brain Science, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Neurobiology, Chongqing, China
| | - Mi Zhou
- Institute of Neuroscience and the Collaborative Innovation Center for Brain Science, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Neurobiology, Chongqing, China
| | - Yongtao Yang
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Institute of Neuroscience and the Collaborative Innovation Center for Brain Science, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Neurobiology, Chongqing, China
| | - Jian Zhou
- Institute of Neuroscience and the Collaborative Innovation Center for Brain Science, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Neurobiology, Chongqing, China
- * E-mail: (JZ); (PX)
| | - Peng Xie
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Institute of Neuroscience and the Collaborative Innovation Center for Brain Science, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Neurobiology, Chongqing, China
- Department of Neurology, Yongchuan Hospital, Chongqing Medical University, Chongqing, China
- * E-mail: (JZ); (PX)
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165
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Selected reaction monitoring mass spectrometry for relative quantification of proteins involved in cellular life and death processes. J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1035:49-56. [DOI: 10.1016/j.jchromb.2016.09.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Revised: 08/31/2016] [Accepted: 09/14/2016] [Indexed: 12/22/2022]
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166
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Grebe SK, Singh RJ. Clinical peptide and protein quantification by mass spectrometry (MS). Trends Analyt Chem 2016. [DOI: 10.1016/j.trac.2016.01.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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167
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Lee JH, Jeong JS, Kim SK, Song J, Lee JY, Baek S, Choi JH. Preparation of soluble isotopically labeled human growth hormone produced in Escherichia coli. J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1035:16-24. [PMID: 27665368 DOI: 10.1016/j.jchromb.2016.09.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Revised: 08/02/2016] [Accepted: 09/19/2016] [Indexed: 11/18/2022]
Abstract
Isotopically labeled proteins have been used as internal standards for mass spectrometry (MS)-based absolute protein quantification. Although this approach can provide highly accurate analyses of proteins of interest within a complex mixture, one of the major limitations of this method is the difficulty in preparing uniformly labeled standards. Human growth hormone (hGH) is one of the most important hormones that circulate throughout the body, and its measurement is primarily of interest in the diagnosis and treatment of growth disorders. In order to provide a useful internal standard for MS-based hGH measurement, we describe an efficient strategy to produce a potentially valuable, stable isotope-labeled hGH with high purity and yield. The strategy involves the following steps: solubilization of hGH under labeling conditions, detection of stable isotope incorporation, large-scale purification, analysis of the labeled protein, and assessment of the labeling efficiency. We show that the yield of soluble hGH under selective isotopic labeling conditions can be greatly increased by optimizing protein expression and extraction. Our efficient method for generating isotopically labeled hGH does not influence the structural integrity of hGH. Finally, we assessed the efficiency of stable isotope labeling at the intact protein level, and the result was further verified by amino acid analysis. These results clearly indicate that our labeling approach allows an almost complete incorporation of 13C615N4-arginine into the hGH expressed in E.coli without detectable isotope scrambling.
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Affiliation(s)
- Jin-Hee Lee
- Center for Bioanalysis, Department of Metrology for Quality of Life, Korea Research Institute of Standards and Science, 267 Gajeong-ro, Youseong-gu, Daejeon 34113, Republic of Korea, Republic of Korea; Department of Bio-Analytical Science, University of Science & Technology, 217 Gajeong-ro, Youseong-gu, Daejeon 34113, Republic of Korea, Republic of Korea
| | - Ji-Seon Jeong
- Center for Bioanalysis, Department of Metrology for Quality of Life, Korea Research Institute of Standards and Science, 267 Gajeong-ro, Youseong-gu, Daejeon 34113, Republic of Korea, Republic of Korea; Department of Bio-Analytical Science, University of Science & Technology, 217 Gajeong-ro, Youseong-gu, Daejeon 34113, Republic of Korea, Republic of Korea
| | - Sook-Kyung Kim
- Center for Bioanalysis, Department of Metrology for Quality of Life, Korea Research Institute of Standards and Science, 267 Gajeong-ro, Youseong-gu, Daejeon 34113, Republic of Korea, Republic of Korea
| | - Jimyeong Song
- Center for Bioanalysis, Department of Metrology for Quality of Life, Korea Research Institute of Standards and Science, 267 Gajeong-ro, Youseong-gu, Daejeon 34113, Republic of Korea, Republic of Korea; Department of Bio-Analytical Science, University of Science & Technology, 217 Gajeong-ro, Youseong-gu, Daejeon 34113, Republic of Korea, Republic of Korea
| | - Ji Youn Lee
- Center for Bioanalysis, Department of Metrology for Quality of Life, Korea Research Institute of Standards and Science, 267 Gajeong-ro, Youseong-gu, Daejeon 34113, Republic of Korea, Republic of Korea
| | - Soyun Baek
- Center for Bioanalysis, Department of Metrology for Quality of Life, Korea Research Institute of Standards and Science, 267 Gajeong-ro, Youseong-gu, Daejeon 34113, Republic of Korea, Republic of Korea; Department of Bio-Analytical Science, University of Science & Technology, 217 Gajeong-ro, Youseong-gu, Daejeon 34113, Republic of Korea, Republic of Korea
| | - Jun-Hyuk Choi
- Center for Bioanalysis, Department of Metrology for Quality of Life, Korea Research Institute of Standards and Science, 267 Gajeong-ro, Youseong-gu, Daejeon 34113, Republic of Korea, Republic of Korea; Department of Bio-Analytical Science, University of Science & Technology, 217 Gajeong-ro, Youseong-gu, Daejeon 34113, Republic of Korea, Republic of Korea.
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168
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Quantitation of human milk proteins and their glycoforms using multiple reaction monitoring (MRM). Anal Bioanal Chem 2016; 409:589-606. [PMID: 27796459 DOI: 10.1007/s00216-016-0029-4] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 09/26/2016] [Accepted: 10/11/2016] [Indexed: 01/11/2023]
Abstract
Human milk plays a substantial role in the child growth, development and determines their nutritional and health status. Despite the importance of the proteins and glycoproteins in human milk, very little quantitative information especially on their site-specific glycosylation is known. As more functions of milk proteins and other components continue to emerge, their fine-detailed quantitative information is becoming a key factor in milk research efforts. The present work utilizes a sensitive label-free MRM method to quantify seven milk proteins (α-lactalbumin, lactoferrin, secretory immunoglobulin A, immunoglobulin G, immunoglobulin M, α1-antitrypsin, and lysozyme) using their unique peptides while at the same time, quantifying their site-specific N-glycosylation relative to the protein abundance. The method is highly reproducible, has low limit of quantitation, and accounts for differences in glycosylation due to variations in protein amounts. The method described here expands our knowledge about human milk proteins and provides vital details that could be used in monitoring the health of the infant and even the mother. Graphical Abstract The glycopeptides EICs generated from QQQ.
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169
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Boakes E, Marbach H, Lynham S, Ward M, Edgeworth JD, Otter JA. Comparative analysis of phenol-soluble modulin production and Galleria mellonella killing by community-associated and healthcare-associated meticillin-resistant Staphylococcusaureus strains. J Med Microbiol 2016; 65:1429-1433. [PMID: 27902400 DOI: 10.1099/jmm.0.000379] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Community-associated meticillin-resistant Staphylococcus aureus (CA-MRSA) have emerged globally and have been associated with more severe disease than healthcare-associated MRSA (HA-MRSA). The purpose of this study was to determine whether laboratory measures of virulence can distinguish dominant CA-MRSA clones from HA-MRSA clones. We compared the production of phenol-soluble modulins (PSMs) and ability to kill Galleria mellonella caterpillars for a range of CA- and HA-MRSA strains. Twenty-two HA-MRSA strains [ST22-IV (EMRSA-15), ST36-II (EMRSA-16) and ST239-III] and 26 CA-MRSA strains [ST1-IV (PVL+ USA400), ST1-IV (PVL-), ST8-IV (USA300), ST22-IV (PVL+), ST30-IV, ST59-IV and ST80-IV] were analysed. PSM production was measured using and compared using t-tests and ANOVA. A G mellonella (caterpillar) pathogenicity model was performed, and differences were compared using survival analysis and the log-rank test. There was no significant difference in overall PSM production between HA and CA strains (P=0.090), but there was significant variation between clones (P=0.003). G. mellonella caterpillar killing varied significantly by clone (P<0.001), and overall killing was greater for HA compared with CA clones (P=0.007). The increased acute virulence phenotype of CA-MRSA clones in humans is not associated with increased PSM production in vitro or increased killing in an in vivo caterpillar pathogenicity model.
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Affiliation(s)
- Eve Boakes
- Centre for Clinical Infection and Diagnostics Research (CIDR), Department of Infectious Diseases, King's College London & Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Helene Marbach
- Centre for Clinical Infection and Diagnostics Research (CIDR), Department of Infectious Diseases, King's College London & Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Steven Lynham
- Centre of Excellence for Mass Spectrometry, King's College London, London, UK
| | - Malcolm Ward
- Centre of Excellence for Mass Spectrometry, King's College London, London, UK
| | - Jonathan D Edgeworth
- Centre for Clinical Infection and Diagnostics Research (CIDR), Department of Infectious Diseases, King's College London & Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Jonathan A Otter
- Centre for Clinical Infection and Diagnostics Research (CIDR), Department of Infectious Diseases, King's College London & Guy's and St Thomas' NHS Foundation Trust, London, UK.,Imperial College Healthcare NHS Trust, St Mary's Hospital, Praed Street, London W2 1NY, UK
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170
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Huang Z, Ma L, Huang C, Li Q, Nice EC. Proteomic profiling of human plasma for cancer biomarker discovery. Proteomics 2016; 17. [PMID: 27550791 DOI: 10.1002/pmic.201600240] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Revised: 08/03/2016] [Accepted: 08/18/2016] [Indexed: 02/05/2023]
Affiliation(s)
- Zhao Huang
- Key Laboratory of Tropical Diseases and Translational Medicine of Ministry of Education & Department of Neurology; The Affiliated Hospital of Hainan Medical College; Haikou P. R. China
- Criminal police detachment of Guang'an City Public Security Bureau; P. R. China
| | - Linguang Ma
- Criminal police detachment of Guang'an City Public Security Bureau; P. R. China
| | - Canhua Huang
- State Key Laboratory for Biotherapy and Cancer Center; West China Hospital; Sichuan University, and Collaborative Innovation Center of Biotherapy; Chengdu P. R. China
| | - Qifu Li
- Key Laboratory of Tropical Diseases and Translational Medicine of Ministry of Education & Department of Neurology; The Affiliated Hospital of Hainan Medical College; Haikou P. R. China
| | - Edouard C. Nice
- Department of Biochemistry and Molecular Biology; Monash University; Clayton Australia
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171
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Croote D, Quake SR. Food allergen detection by mass spectrometry: the role of systems biology. NPJ Syst Biol Appl 2016; 2:16022. [PMID: 28725476 PMCID: PMC5516885 DOI: 10.1038/npjsba.2016.22] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Revised: 06/24/2016] [Accepted: 07/25/2016] [Indexed: 11/08/2022] Open
Abstract
Food allergy prevalence is rising worldwide, motivating the development of assays that can sensitively and reliably detect trace amounts of allergens in manufactured food. Mass spectrometry (MS) is a promising alternative to commonly employed antibody-based assays owing to its ability to quantify multiple proteins in complex matrices with high sensitivity. In this review, we discuss a targeted MS workflow for the quantitation of allergenic protein in food products that employs selected reaction monitoring (SRM). We highlight the aspects of SRM method development unique to allergen quantitation and identify opportunities for simplifying the process. One promising avenue identified through a comprehensive survey of published MS literature is the use of proteotypic peptides, which are peptides whose presence appears robust to variations in food matrix, sample preparation protocol, and MS instrumentation. We conclude that proteotypic peptides exist for a subset of allergenic milk, egg, and peanut proteins. For less studied allergens such as soy, wheat, fish, shellfish, and tree nuts, we offer guidance and tools for peptide selection and specificity verification as part of an interactive web database, the Allergen Peptide Browser (http://www.AllergenPeptideBrowser.org). With ongoing improvements in MS instrumentation, analysis software, and strategies for targeted quantitation, we expect an increasing role of MS as an analytical tool for ensuring regulatory compliance.
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Affiliation(s)
- Derek Croote
- Department of Bioengineering, Stanford University, Stanford, CA, USA
| | - Stephen R Quake
- Department of Bioengineering, Stanford University, Stanford, CA, USA
- Department of Applied Physics, Stanford University, Stanford, CA, USA
- Howard Hughes Medical Institute, Stanford University, Stanford, CA, USA
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172
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Pröfrock D. Coupling Techniques and Orthogonal Combination of Mass Spectrometric Techniques. Metallomics 2016. [DOI: 10.1002/9783527694907.ch2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Daniel Pröfrock
- Helmholtz-Zentrum Geesthacht, Centre for Materials and Coastal Research; Department Marine Bioanalytical Chemistry, Institute of Coastal Research/Biogeochemistry in Coastal Seas; Max-Planck Str.1 21502 Geesthacht Germany
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173
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High precision quantification of human plasma proteins using the automated SISCAPA Immuno-MS workflow. N Biotechnol 2016; 33:494-502. [DOI: 10.1016/j.nbt.2015.12.008] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Revised: 12/22/2015] [Accepted: 12/29/2015] [Indexed: 11/24/2022]
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174
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Kopylov AT, Ilgisonis EV, Moysa AA, Tikhonova OV, Zavialova MG, Novikova SE, Lisitsa AV, Ponomarenko EA, Moshkovskii SA, Markin AA, Grigoriev AI, Zgoda VG, Archakov AI. Targeted Quantitative Screening of Chromosome 18 Encoded Proteome in Plasma Samples of Astronaut Candidates. J Proteome Res 2016; 15:4039-4046. [PMID: 27457493 DOI: 10.1021/acs.jproteome.6b00384] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
This work was aimed at estimating the concentrations of proteins encoded by human chromosome 18 (Chr 18) in plasma samples of 54 healthy male volunteers (aged 20-47). These young persons have been certified by the medical evaluation board as healthy subjects ready for space flight training. Over 260 stable isotope-labeled peptide standards (SIS) were synthesized to perform the measurements of proteins encoded by Chr 18. Selected reaction monitoring (SRM) with SIS allowed an estimate of the levels of 84 of 276 proteins encoded by Chr 18. These proteins were quantified in whole and depleted plasma samples. Concentration of the proteins detected varied from 10-6 M (transthyretin, P02766) to 10-11 M (P4-ATPase, O43861). A minor part of the proteins (mostly representing intracellular proteins) was characterized by extremely high inter individual variations. The results provide a background for studies of a potential biomarker in plasma among proteins encoded by Chr 18. The SRM raw data are available in ProteomeXchange repository (PXD004374).
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Andrey A Markin
- Institute of Medico-Biological Problems, Russian Academy of Sciences , 123007, Moscow, Russia
| | - Anatoly I Grigoriev
- Institute of Medico-Biological Problems, Russian Academy of Sciences , 123007, Moscow, Russia
| | - Victor G Zgoda
- Institute of Biomedical Chemistry , 119121, Moscow, Russia
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175
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Panis C, Pizzatti L, Souza GF, Abdelhay E. Clinical proteomics in cancer: Where we are. Cancer Lett 2016; 382:231-239. [PMID: 27561426 DOI: 10.1016/j.canlet.2016.08.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Revised: 08/16/2016] [Accepted: 08/17/2016] [Indexed: 12/25/2022]
Abstract
Proteomics has emerged as a promising field in the post-genomic era. Notwithstanding the great advances provided by gene expression analysis in cancer, the lack of a correlation between gene expression and protein levels has highlighted the need for a proteomic focus on cancer. Although the increasing knowledge regarding cancer biology, a reliable marker to improve diagnosis, prognosis and treatment for cancer patients is not a reality at present. In this review, we address the main considerations regarding proteomics-based studies and their clinical applications on cancer research, highlighting some considerations related to strengths and limitations of proteomics-based studies and its application to clinical practice.
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Affiliation(s)
- Carolina Panis
- Laboratório de Células Tronco, Instituto Nacional de Câncer, INCA, Rio de Janeiro, Brazil; Laboratório de Mediadores Inflamatórios, Universidade Estadual do Oeste do Paraná, UNIOESTE, Campus Francisco Beltrão, Paraná, Brazil.
| | - Luciana Pizzatti
- Laboratório de Biologia Molecular e Proteômica do Sangue - LABMOPS, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Eliana Abdelhay
- Laboratório de Células Tronco, Instituto Nacional de Câncer, INCA, Rio de Janeiro, Brazil
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176
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Nascimento JM, Garcia S, Saia-Cereda VM, Santana AG, Brandao-Teles C, Zuccoli GS, Junqueira DG, Reis-de-Oliveira G, Baldasso PA, Cassoli JS, Martins-de-Souza D. Proteomics and molecular tools for unveiling missing links in the biochemical understanding of schizophrenia. Proteomics Clin Appl 2016; 10:1148-1158. [DOI: 10.1002/prca.201600021] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 06/21/2016] [Accepted: 07/14/2016] [Indexed: 12/20/2022]
Affiliation(s)
- Juliana M. Nascimento
- Department of Biochemistry and Tissue Biology; Laboratory of Neuroproteomics; Institute of Biology; University of Campinas (UNICAMP); Campinas São Paulo Brazil
| | - Sheila Garcia
- Department of Biochemistry and Tissue Biology; Laboratory of Neuroproteomics; Institute of Biology; University of Campinas (UNICAMP); Campinas São Paulo Brazil
| | - Verônica M. Saia-Cereda
- Department of Biochemistry and Tissue Biology; Laboratory of Neuroproteomics; Institute of Biology; University of Campinas (UNICAMP); Campinas São Paulo Brazil
| | - Aline G. Santana
- Department of Biochemistry and Tissue Biology; Laboratory of Neuroproteomics; Institute of Biology; University of Campinas (UNICAMP); Campinas São Paulo Brazil
| | - Caroline Brandao-Teles
- Department of Biochemistry and Tissue Biology; Laboratory of Neuroproteomics; Institute of Biology; University of Campinas (UNICAMP); Campinas São Paulo Brazil
| | - Giuliana S. Zuccoli
- Department of Biochemistry and Tissue Biology; Laboratory of Neuroproteomics; Institute of Biology; University of Campinas (UNICAMP); Campinas São Paulo Brazil
| | - Danielle G. Junqueira
- Department of Biochemistry and Tissue Biology; Laboratory of Neuroproteomics; Institute of Biology; University of Campinas (UNICAMP); Campinas São Paulo Brazil
| | - Guilherme Reis-de-Oliveira
- Department of Biochemistry and Tissue Biology; Laboratory of Neuroproteomics; Institute of Biology; University of Campinas (UNICAMP); Campinas São Paulo Brazil
| | - Paulo A. Baldasso
- Department of Biochemistry and Tissue Biology; Laboratory of Neuroproteomics; Institute of Biology; University of Campinas (UNICAMP); Campinas São Paulo Brazil
| | - Juliana S. Cassoli
- Department of Biochemistry and Tissue Biology; Laboratory of Neuroproteomics; Institute of Biology; University of Campinas (UNICAMP); Campinas São Paulo Brazil
| | - Daniel Martins-de-Souza
- Department of Biochemistry and Tissue Biology; Laboratory of Neuroproteomics; Institute of Biology; University of Campinas (UNICAMP); Campinas São Paulo Brazil
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177
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Lee MY, Kim EY, Kim SH, Cho KC, Ha K, Kim KP, Ahn YM. Discovery of serum protein biomarkers in drug-free patients with major depressive disorder. Prog Neuropsychopharmacol Biol Psychiatry 2016; 69:60-8. [PMID: 27105922 DOI: 10.1016/j.pnpbp.2016.04.009] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Revised: 04/12/2016] [Accepted: 04/18/2016] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Major depressive disorder (MDD) is a systemic and multifactorial disorder involving complex interactions between genetic predisposition and disturbances of various molecular pathways. Its underlying molecular pathophysiology remains unclear, and no valid and objective diagnostic tools for the condition are available. METHODS We performed large-scale proteomic profiling to identify novel peripheral biomarkers implicated in the pathophysiology of MDD in 25 drug-free female MDD patients and 25 healthy controls. First, quantitative serum proteome profiles were obtained and analyzed by liquid chromatography-tandem mass spectrometry using serum samples from 10 MDD patients and 10 healthy controls. Next, candidate biomarker sets, including differentially expressed proteins from the profiling experiment and those identified in the literature, were verified using multiple-reaction monitoring in 25 patients and 25 healthy controls. The final panel of potential biomarkers was selected using multiparametric statistical analysis. RESULTS We identified a serum biomarker panel consisting of six proteins: apolipoprotein D, apolipoprotein B, vitamin D-binding protein, ceruloplasmin, hornerin, and profilin 1, which could be used to distinguish MDD patients from controls with 68% diagnostic accuracy. Our results suggest that modulation of the immune and inflammatory systems and lipid metabolism are involved in the pathophysiology of MDD. CONCLUSIONS Our findings of functional proteomic changes in the peripheral blood of patients with MDD further clarify the molecular biological pathway underlying depression. Further studies using larger, independent cohorts are needed to verify the role of these candidate biomarkers for the diagnosis of MDD.
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Affiliation(s)
- Min Young Lee
- Institute for Systems Biology, Seattle, WA, United States; Department of Applied Chemistry, College of Applied Science, Kyung Hee University, Yongin, Republic of Korea
| | - Eun Young Kim
- Department of Psychiatry, Sanggye Paik Hospital, Inje University College of Medicine, Seoul, Republic of Korea
| | - Se Hyun Kim
- Department of Neuropsychiatry, Dongguk University Medical School, Dongguk University International Hospital, Goyang, Republic of Korea
| | - Kyung-Cho Cho
- Department of Applied Chemistry, College of Applied Science, Kyung Hee University, Yongin, Republic of Korea
| | - Kyooseob Ha
- Department of Psychiatry, Seoul National University Bundang Hospital, Seongnam, Republic of Korea;; Seoul National Hospital, Seoul, Republic of Korea; Institute of Human Behavioral Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Kwang Pyo Kim
- Department of Applied Chemistry, College of Applied Science, Kyung Hee University, Yongin, Republic of Korea.
| | - Yong Min Ahn
- Department of Psychiatry, Seoul National University Hospital, Seoul, Republic of Korea; Institute of Human Behavioral Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea.
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178
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The clinical utility of mass spectrometry based protein assays. Clin Chim Acta 2016; 459:155-161. [DOI: 10.1016/j.cca.2016.05.027] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 05/25/2016] [Accepted: 05/30/2016] [Indexed: 11/22/2022]
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179
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Characterization and quantification of oxyntomodulin in human and rat plasma using high-resolution accurate mass LC–MS. Bioanalysis 2016; 8:1579-1595. [DOI: 10.4155/bio-2016-0012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Background: A thorough understanding of the biological role of oxyntomodulin (OXM) has been limited by the availability of sensitive and specific analytical tools for reliable in vivo characterization. Here, we utilized immunoaffinity capture coupled with high-resolution accurate mass LC–MS detection to quantify OXM and its primary catabolites. Results: Quantification of intact OXM 1–37 in human and rat plasma occurred in pre- and post-prandial samples. Profiles for the major catabolites were observed allowing kinetic differences to be assessed between species. Conclusion: A validated assay in human and rat plasma was obtained for OXM 1–37 and its catabolites, 3–37 and 4–37. The value of full scan high-resolution accurate mass detection without selected reaction monitoring for low-abundance peptide quantification was also demonstrated.
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180
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Mbasu RJ, Heaney LM, Molloy BJ, Hughes CJ, Ng LL, Vissers JPC, Langridge JI, Jones DJL. Advances in quadrupole and time-of-flight mass spectrometry for peptide MRM based translational research analysis. Proteomics 2016; 16:2206-20. [PMID: 27214876 DOI: 10.1002/pmic.201500500] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Revised: 03/30/2016] [Accepted: 05/04/2016] [Indexed: 11/06/2022]
Abstract
The application of unit resolution tandem quadrupole and high-resolution orthogonal acceleration ToF mass spectrometers for the quantitation and translational analysis of proteolytic peptides is described. The MS platforms were contrasted in terms of sensitivity and linear response. Moreover, the selectivity of the platforms was investigated and the effect on quantitative precision studied. Chromatographic LC conditions, including gradient length and configuration, were investigated with respect to speed/throughput, while minimizing isobaric interferences, thereby providing information with regard to practical sample cohort size limitations of LC-MS for large cohort experiments. In addition to these fundamental analytical performance metrics, precision and linear dynamic ranges were also studied. An LC-MS configuration that encompasses the best combination of throughput and analytical accuracy for translational studies was chosen, despite the MS platforms giving similar quantitative performance, and instances were identified where alternative combinations were found to be beneficial. This configuration was utilized to demonstrate that proteolytically digested nondepleted samples from heart failure patients could be classified with good discriminative power using a subset of proteins previously suggested as candidate biomarkers for cardiovascular diseases.
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Affiliation(s)
- Richard J Mbasu
- Department of Cancer Studies, RKCSB, University of Leicester, Leicester, UK.,Department of Cardiovascular Sciences, NIHR Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital, Leicester, UK
| | - Liam M Heaney
- Department of Cardiovascular Sciences, NIHR Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital, Leicester, UK
| | | | | | - Leong L Ng
- Department of Cardiovascular Sciences, NIHR Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital, Leicester, UK
| | | | | | - Donald J L Jones
- Department of Cancer Studies, RKCSB, University of Leicester, Leicester, UK.,Department of Cardiovascular Sciences, NIHR Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital, Leicester, UK
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181
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Tonry CL, Leacy E, Raso C, Finn SP, Armstrong J, Pennington SR. The Role of Proteomics in Biomarker Development for Improved Patient Diagnosis and Clinical Decision Making in Prostate Cancer. Diagnostics (Basel) 2016; 6:E27. [PMID: 27438858 PMCID: PMC5039561 DOI: 10.3390/diagnostics6030027] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 06/28/2016] [Accepted: 07/07/2016] [Indexed: 02/06/2023] Open
Abstract
Prostate Cancer (PCa) is the second most commonly diagnosed cancer in men worldwide. Although increased expression of prostate-specific antigen (PSA) is an effective indicator for the recurrence of PCa, its intended use as a screening marker for PCa is of considerable controversy. Recent research efforts in the field of PCa biomarkers have focused on the identification of tissue and fluid-based biomarkers that would be better able to stratify those individuals diagnosed with PCa who (i) might best receive no treatment (active surveillance of the disease); (ii) would benefit from existing treatments; or (iii) those who are likely to succumb to disease recurrence and/or have aggressive disease. The growing demand for better prostate cancer biomarkers has coincided with the development of improved discovery and evaluation technologies for multiplexed measurement of proteins in bio-fluids and tissues. This review aims to (i) provide an overview of these technologies as well as describe some of the candidate PCa protein biomarkers that have been discovered using them; (ii) address some of the general limitations in the clinical evaluation and validation of protein biomarkers; and (iii) make recommendations for strategies that could be adopted to improve the successful development of protein biomarkers to deliver improvements in personalized PCa patient decision making.
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Affiliation(s)
- Claire L Tonry
- UCD Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Dublin 4, Ireland.
| | - Emma Leacy
- UCD Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Dublin 4, Ireland.
| | - Cinzia Raso
- UCD Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Dublin 4, Ireland.
| | - Stephen P Finn
- School of Medicine, Trinity College Dublin, Dublin 2, Ireland.
| | | | - Stephen R Pennington
- UCD Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Dublin 4, Ireland.
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182
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Dupin M, Fortin T, Larue-Triolet A, Surault I, Beaulieu C, Gouel-Chéron A, Allaouchiche B, Asehnoune K, Roquilly A, Venet F, Monneret G, Lacoux X, Roitsch CA, Pachot A, Charrier JP, Pons S. Impact of Serum and Plasma Matrices on the Titration of Human Inflammatory Biomarkers Using Analytically Validated SRM Assays. J Proteome Res 2016; 15:2366-78. [DOI: 10.1021/acs.jproteome.5b00803] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | | | | | - Aurélie Gouel-Chéron
- Hospices Civils de Lyon (HCL), Hôpital Edouard
Herriot, Département d’Anesthésie-Réanimation, Lyon, France
| | - Bernard Allaouchiche
- Hospices Civils de Lyon (HCL), Hôpital Edouard
Herriot, Département d’Anesthésie-Réanimation, Lyon, France
- EA
4174, Hémostase, Inflammation et Sepsis, Hospices Civils de Lyon - Université Claude Bernard Lyon 1, Lyon, France
| | - Karim Asehnoune
- CHU Nantes, Hôtel Dieu, Département
d’anesthésie réanimation chirurgicale, Nantes, France
| | - Antoine Roquilly
- CHU Nantes, Hôtel Dieu, Département
d’anesthésie réanimation chirurgicale, Nantes, France
| | - Fabienne Venet
- Hospices Civils de Lyon (HCL), Hôpital Edouard
Herriot, Laboratoire d’Immunologie Cellulaire, Lyon, France
- EA
4174, Hémostase, Inflammation et Sepsis, Hospices Civils de Lyon - Université Claude Bernard Lyon 1, Lyon, France
- Laboratoire
Commun de Recherche HCL - bioMérieux, Hospices Civils de Lyon, Hôpital E. Herriot, Lyon, France
| | - Guillaume Monneret
- Hospices Civils de Lyon (HCL), Hôpital Edouard
Herriot, Laboratoire d’Immunologie Cellulaire, Lyon, France
- EA
4174, Hémostase, Inflammation et Sepsis, Hospices Civils de Lyon - Université Claude Bernard Lyon 1, Lyon, France
- Laboratoire
Commun de Recherche HCL - bioMérieux, Hospices Civils de Lyon, Hôpital E. Herriot, Lyon, France
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183
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Ippoliti PJ, Kuhn E, Mani DR, Fagbami L, Keshishian H, Burgess MW, Jaffe JD, Carr SA. Automated Microchromatography Enables Multiplexing of Immunoaffinity Enrichment of Peptides to Greater than 150 for Targeted MS-Based Assays. Anal Chem 2016; 88:7548-55. [PMID: 27321643 DOI: 10.1021/acs.analchem.6b00946] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Immunoaffinity enrichment of peptides coupled with analysis by stable isotope dilution multiple reaction mass spectrometry has been shown to have analytical performance and detection limits suitable for many biomarker verification studies and biological applications. Prior studies have shown that antipeptide antibodies can be multiplexed up to 50 in a single assay without significant loss of performance. Achieving higher multiplex levels is relevant to all studies involving precious biological material as this minimizes the amount of sample that must be consumed to measure a given set of analytes and reduces the assay cost per analyte. Here we developed automated methods employing the Agilent AssayMAP Bravo microchromatography platform and used these methods to characterize the performance of immunoaffinity enrichment of peptides up to multiplex levels of 172. Median capture efficiency for the target peptides remained high (88%) even at levels of 150-plex and declined to 70% at 172-plex compared to antibody performance observed at standard lower multiplex levels (n = 25). Subsequently, we developed and analytically characterized a multiplexed immuno-multiple reaction monitoring-mass spectrometry (immuno-MRM-MS) assay (n = 110) and applied it to measure candidate protein biomarkers of cardiovascular disease in plasma of patients undergoing planned myocardial infarction. The median lower limit of detection of all peptides was 71.5 amol/μL (nM), and the coefficient of variation (CV) was less than 15% at the lower limit of quantification. The results demonstrate that high multiplexed immuno-MRM-MS assays are readily achievable using the optimized sample processing and peptide capture methods described here.
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Affiliation(s)
- Paul J Ippoliti
- Broad Institute of MIT and Harvard , Cambridge, Massachusetts 02142, United States
| | - Eric Kuhn
- Broad Institute of MIT and Harvard , Cambridge, Massachusetts 02142, United States
| | - D R Mani
- Broad Institute of MIT and Harvard , Cambridge, Massachusetts 02142, United States
| | - Lola Fagbami
- Broad Institute of MIT and Harvard , Cambridge, Massachusetts 02142, United States
| | - Hasmik Keshishian
- Broad Institute of MIT and Harvard , Cambridge, Massachusetts 02142, United States
| | - Michael W Burgess
- Broad Institute of MIT and Harvard , Cambridge, Massachusetts 02142, United States
| | - Jacob D Jaffe
- Broad Institute of MIT and Harvard , Cambridge, Massachusetts 02142, United States
| | - Steven A Carr
- Broad Institute of MIT and Harvard , Cambridge, Massachusetts 02142, United States
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184
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White FM, Wolf-Yadlin A. Methods for the Analysis of Protein Phosphorylation-Mediated Cellular Signaling Networks. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2016; 9:295-315. [PMID: 27049636 DOI: 10.1146/annurev-anchem-071015-041542] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Protein phosphorylation-mediated cellular signaling networks regulate almost all aspects of cell biology, including the responses to cellular stimulation and environmental alterations. These networks are highly complex and comprise hundreds of proteins and potentially thousands of phosphorylation sites. Multiple analytical methods have been developed over the past several decades to identify proteins and protein phosphorylation sites regulating cellular signaling, and to quantify the dynamic response of these sites to different cellular stimulation. Here we provide an overview of these methods, including the fundamental principles governing each method, their relative strengths and weaknesses, and some examples of how each method has been applied to the analysis of complex signaling networks. When applied correctly, each of these techniques can provide insight into the topology, dynamics, and regulation of protein phosphorylation signaling networks.
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Affiliation(s)
- Forest M White
- Department of Biological Engineering and David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139;
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185
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Kockmann T, Trachsel C, Panse C, Wahlander A, Selevsek N, Grossmann J, Wolski WE, Schlapbach R. Targeted proteomics coming of age - SRM, PRM and DIA performance evaluated from a core facility perspective. Proteomics 2016; 16:2183-92. [DOI: 10.1002/pmic.201500502] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Revised: 03/10/2016] [Accepted: 04/25/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Tobias Kockmann
- Functional Genomics Center Zurich; ETH Zurich/University of Zurich; Winterthurerstr Zurich Switzerland
| | - Christian Trachsel
- Functional Genomics Center Zurich; ETH Zurich/University of Zurich; Winterthurerstr Zurich Switzerland
| | - Christian Panse
- Functional Genomics Center Zurich; ETH Zurich/University of Zurich; Winterthurerstr Zurich Switzerland
| | - Asa Wahlander
- AstraZeneca Nucleotide Bioanalysis, Drug Safety and Metabolism; Innovative Medicines Mölndal; Sweden
| | - Nathalie Selevsek
- Functional Genomics Center Zurich; ETH Zurich/University of Zurich; Winterthurerstr Zurich Switzerland
| | - Jonas Grossmann
- Functional Genomics Center Zurich; ETH Zurich/University of Zurich; Winterthurerstr Zurich Switzerland
| | - Witold E. Wolski
- Functional Genomics Center Zurich; ETH Zurich/University of Zurich; Winterthurerstr Zurich Switzerland
| | - Ralph Schlapbach
- Functional Genomics Center Zurich; ETH Zurich/University of Zurich; Winterthurerstr Zurich Switzerland
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186
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Xian F, Zi J, Wang Q, Lou X, Sun H, Lin L, Hou G, Rao W, Yin C, Wu L, Li S, Liu S. Peptide Biosynthesis with Stable Isotope Labeling from a Cell-free Expression System for Targeted Proteomics with Absolute Quantification. Mol Cell Proteomics 2016; 15:2819-28. [PMID: 27234506 DOI: 10.1074/mcp.o115.056507] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Indexed: 11/06/2022] Open
Abstract
Because of its specificity and sensitivity, targeted proteomics using mass spectrometry for multiple reaction monitoring is a powerful tool to detect and quantify pre-selected peptides from a complex background and facilitates the absolute quantification of peptides using isotope-labeled forms as internal standards. How to generate isotope-labeled peptides remains an urgent challenge for accurately quantitative targeted proteomics on a large scale. Herein, we propose that isotope-labeled peptides fused with a quantitative tag could be synthesized through an expression system in vitro, and the homemade peptides could be enriched by magnetic beads with tag-affinity and globally quantified based on the corresponding multiple reaction monitoring signals provided by the fused tag. An Escherichia coli cell-free protein expression system, protein synthesis using recombinant elements, was adopted for the synthesis of isotope-labeled peptides fused with Strep-tag. Through a series of optimizations, we enabled efficient expression of the labeled peptides such that, after Strep-Tactin affinity enrichment, the peptide yield was acceptable in scale for quantification, and the peptides could be completely digested by trypsin to release the Strep-tag for quantification. Moreover, these recombinant peptides could be employed in the same way as synthetic peptides for multiple reaction monitoring applications and are likely more economical and useful in a laboratory for the scale of targeted proteomics. As an application, we synthesized four isotope-labeled glutathione S-transferase (GST) peptides and added them to mouse sera pre-treated with GST affinity resin as internal standards. A quantitative assay of the synthesized GST peptides confirmed the absolute GST quantification in mouse sera to be measurable and reproducible.
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Affiliation(s)
- Feng Xian
- From the ‡CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, 100101, China; §BGI-Shenzhen, Shenzhen, 518083, China; ¶Sino-Danish Center for Education and Research, University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Jin Zi
- §BGI-Shenzhen, Shenzhen, 518083, China
| | - Quanhui Wang
- From the ‡CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, 100101, China; §BGI-Shenzhen, Shenzhen, 518083, China
| | - Xiaomin Lou
- From the ‡CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Haidan Sun
- From the ‡CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Liang Lin
- §BGI-Shenzhen, Shenzhen, 518083, China
| | - Guixue Hou
- From the ‡CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, 100101, China; §BGI-Shenzhen, Shenzhen, 518083, China
| | | | | | - Lin Wu
- From the ‡CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Shuwei Li
- ‖Institute for Bioscience and Biotechnology Research, University of Maryland College Park, Rockville, Maryland 20850;
| | - Siqi Liu
- From the ‡CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, 100101, China; §BGI-Shenzhen, Shenzhen, 518083, China; ¶Sino-Danish Center for Education and Research, University of the Chinese Academy of Sciences, Beijing, 100049, China;
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187
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Martin LBB, Sherwood RW, Nicklay JJ, Yang Y, Muratore-Schroeder TL, Anderson ET, Thannhauser TW, Rose JKC, Zhang S. Application of wide selected-ion monitoring data-independent acquisition to identify tomato fruit proteins regulated by the CUTIN DEFICIENT2 transcription factor. Proteomics 2016; 16:2081-94. [PMID: 27089858 DOI: 10.1002/pmic.201500450] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Revised: 02/15/2016] [Accepted: 04/12/2016] [Indexed: 01/18/2023]
Abstract
We describe here the use of label-free wide selected-ion monitoring data-independent acquisition (WiSIM-DIA) to identify proteins that are involved in the formation of tomato (Solanum lycopersicum) fruit cuticles and that are regulated by the transcription factor CUTIN DEFICIENT2 (CD2). A spectral library consisting of 11 753 unique peptides, corresponding to 2338 tomato protein groups, was used and the DIA analysis was performed at the MS1 level utilizing narrow mass windows for extraction with Skyline 2.6 software. We identified a total of 1140 proteins, 67 of which had expression levels that differed significantly between the cd2 tomato mutant and the wild-type cultivar M82. Differentially expressed proteins including a key protein involved in cutin biosynthesis, were selected for validation by target SRM/MRM and by Western blot analysis. In addition to confirming a role for CD2 in regulating cuticle formation, the results also revealed that CD2 influences pathways associated with cell wall biology, anthocyanin biosynthesis, plant development, and responses to stress, which complements findings of earlier RNA-Seq experiments. Our results provide new insights into molecular processes and aspects of fruit biology associated with CD2 function, and demonstrate that the WiSIM-DIA is an effective quantitative approach for global protein identifications.
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Affiliation(s)
- Laetitia B B Martin
- Plant Biology Section, School of Integrative Plant Science, Cornell University, Ithaca, NY, USA
| | - Robert W Sherwood
- Proteomics and Mass Spectrometry Facility, Institute of Biotechnology, Cornell University, Ithaca, NY, USA
| | | | - Yong Yang
- Robert W. Holley Center for Agriculture and Health, USDA-ARS, Cornell University, Ithaca, NY, USA
| | | | - Elizabeth T Anderson
- Proteomics and Mass Spectrometry Facility, Institute of Biotechnology, Cornell University, Ithaca, NY, USA
| | - Theodore W Thannhauser
- Robert W. Holley Center for Agriculture and Health, USDA-ARS, Cornell University, Ithaca, NY, USA
| | - Jocelyn K C Rose
- Plant Biology Section, School of Integrative Plant Science, Cornell University, Ithaca, NY, USA
| | - Sheng Zhang
- Proteomics and Mass Spectrometry Facility, Institute of Biotechnology, Cornell University, Ithaca, NY, USA
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188
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Abstract
As our knowledge of the mechanisms underlying cancer development and progression has increased, so too have more effective, less toxic, and targeted therapies begun to reach the clinic. However, the full impact of these clinical advances and the practical success of the emerging field of precision medicine are dependent on the discovery and validation of sensitive and accurate biomarkers that can enable appropriate and rigorous sample type and patient selection, reliable longitudinal monitoring of therapeutic efficacy, and even risk assessment and early detection. Within the context of this review, we examine state-of-the-art approaches to the discovery and validation of noninvasive cancer biomarkers, with a specific emphasis on those that are protein or protein-associated ones. We also review sample selection strategies, currently utilized proteomic approaches for both discovery and validation requirements, and data analysis standards. Finally, we provide examples of these elements of biomarker discovery and validation from our own biomarker research.
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189
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Wagner M, Tonoli D, Varesio E, Hopfgartner G. The use of mass spectrometry to analyze dried blood spots. MASS SPECTROMETRY REVIEWS 2016; 35:361-438. [PMID: 25252132 DOI: 10.1002/mas.21441] [Citation(s) in RCA: 162] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Dried blood spots (DBS) typically consist in the deposition of small volumes of capillary blood onto dedicated paper cards. Comparatively to whole blood or plasma samples, their benefits rely in the fact that sample collection is easier and that logistic aspects related to sample storage and shipment can be relatively limited, respectively, without the need of a refrigerator or dry ice. Originally, this approach has been developed in the sixties to support the analysis of phenylalanine for the detection of phenylketonuria in newborns using bacterial inhibition test. In the nineties tandem mass spectrometry was established as the detection technique for phenylalanine and tyrosine. DBS became rapidly recognized for their clinical value: they were widely implemented in pediatric settings with mass spectrometric detection, and were closely associated to the debut of newborn screening (NBS) programs, as a part of public health policies. Since then, sample collection on paper cards has been explored with various analytical techniques in other areas more or less successfully regarding large-scale applications. Moreover, in the last 5 years a regain of interest for DBS was observed and originated from the bioanalytical community to support drug development (e.g., PK studies) or therapeutic drug monitoring mainly. Those recent applications were essentially driven by improved sensitivity of triple quadrupole mass spectrometers. This review presents an overall view of all instrumental and methodological developments for DBS analysis with mass spectrometric detection, with and without separation techniques. A general introduction to DBS will describe their advantages and historical aspects of their emergence. A second section will focus on blood collection, with a strong emphasis on specific parameters that can impact quantitative analysis, including chromatographic effects, hematocrit effects, blood effects, and analyte stability. A third part of the review is dedicated to sample preparation and will consider off-line and on-line extractions; in particular, instrumental designs that have been developed so far for DBS extraction will be detailed. Flow injection analysis and applications will be discussed in section IV. The application of surface analysis mass spectrometry (DESI, paper spray, DART, APTDCI, MALDI, LDTD-APCI, and ICP) to DBS is described in section V, while applications based on separation techniques (e.g., liquid or gas chromatography) are presented in section VI. To conclude this review, the current status of DBS analysis is summarized, and future perspectives are provided.
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Affiliation(s)
- Michel Wagner
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Life Sciences Mass Spectrometry, Quai Ernest-Ansermet 30, 1211, Geneva, Switzerland
| | - David Tonoli
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Life Sciences Mass Spectrometry, Quai Ernest-Ansermet 30, 1211, Geneva, Switzerland
| | - Emmanuel Varesio
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Life Sciences Mass Spectrometry, Quai Ernest-Ansermet 30, 1211, Geneva, Switzerland
| | - Gérard Hopfgartner
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Life Sciences Mass Spectrometry, Quai Ernest-Ansermet 30, 1211, Geneva, Switzerland
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190
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Wang EH, Combe PC, Schug KA. Multiple Reaction Monitoring for Direct Quantitation of Intact Proteins Using a Triple Quadrupole Mass Spectrometer. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2016; 27:886-896. [PMID: 26956437 DOI: 10.1007/s13361-016-1368-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Accepted: 02/16/2016] [Indexed: 06/05/2023]
Abstract
Methods that can efficiently and effectively quantify proteins are needed to support increasing demand in many bioanalytical fields. Triple quadrupole mass spectrometry (QQQ-MS) is sensitive and specific, and it is routinely used to quantify small molecules. However, low resolution fragmentation-dependent MS detection can pose inherent difficulties for intact proteins. In this research, we investigated variables that affect protein and fragment ion signals to enable protein quantitation using QQQ-MS. Collision induced dissociation gas pressure and collision energy were found to be the most crucial variables for optimization. Multiple reaction monitoring (MRM) transitions for seven standard proteins, including lysozyme, ubiquitin, cytochrome c from both equine and bovine, lactalbumin, myoglobin, and prostate-specific antigen (PSA) were determined. Assuming the eventual goal of applying such methodology is to analyze protein in biological fluids, a liquid chromatography method was developed. Calibration curves of six standard proteins (excluding PSA) were obtained to show the feasibility of intact protein quantification using QQQ-MS. Linearity (2-3 orders), limits of detection (0.5-50 μg/mL), accuracy (<5% error), and precision (1%-12% CV) were determined for each model protein. Sensitivities for different proteins varied considerably. Biological fluids, including human urine, equine plasma, and bovine plasma were used to demonstrate the specificity of the approach. The purpose of this model study was to identify, study, and demonstrate the advantages and challenges for QQQ-MS-based intact protein quantitation, a largely underutilized approach to date.
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Affiliation(s)
- Evelyn H Wang
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX, 76019, USA
| | - Peter C Combe
- Shimadzu Scientific Instruments, Inc., Columbia, MD, 21046, USA
| | - Kevin A Schug
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX, 76019, USA.
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191
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Kito K, Okada M, Ishibashi Y, Okada S, Ito T. A strategy for absolute proteome quantification with mass spectrometry by hierarchical use of peptide-concatenated standards. Proteomics 2016; 16:1457-73. [DOI: 10.1002/pmic.201500414] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 02/18/2016] [Accepted: 03/24/2016] [Indexed: 12/20/2022]
Affiliation(s)
- Keiji Kito
- Department of Life Sciences, School of Agriculture; Meiji University; Kawasaki Japan
| | - Mitsuhiro Okada
- Department of Life Sciences, School of Agriculture; Meiji University; Kawasaki Japan
| | - Yuko Ishibashi
- Department of Life Sciences, School of Agriculture; Meiji University; Kawasaki Japan
| | - Satoshi Okada
- Department of Biochemistry; Kyushu University Graduate School of Medical Science; Fukuoka Japan
| | - Takashi Ito
- Department of Biochemistry; Kyushu University Graduate School of Medical Science; Fukuoka Japan
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192
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Wynne JW, Woon AP, Dudek NL, Croft NP, Ng JHJ, Baker ML, Wang LF, Purcell AW. Characterization of the Antigen Processing Machinery and Endogenous Peptide Presentation of a Bat MHC Class I Molecule. THE JOURNAL OF IMMUNOLOGY 2016; 196:4468-76. [PMID: 27183594 DOI: 10.4049/jimmunol.1502062] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Accepted: 03/23/2016] [Indexed: 11/19/2022]
Abstract
Bats are a major reservoir of emerging and re-emerging infectious diseases, including severe acute respiratory syndrome-like coronaviruses, henipaviruses, and Ebola virus. Although highly pathogenic to their spillover hosts, bats harbor these viruses, and a large number of other viruses, with little or no clinical signs of disease. How bats asymptomatically coexist with these viruses is unknown. In particular, little is known about bat adaptive immunity, and the presence of functional MHC molecules is mostly inferred from recently described genomes. In this study, we used an affinity purification/mass spectrometry approach to demonstrate that a bat MHC class I molecule, Ptal-N*01:01, binds antigenic peptides and associates with peptide-loading complex components. We identified several bat MHC class I-binding partners, including calnexin, calreticulin, protein disulfide isomerase A3, tapasin, TAP1, and TAP2. Additionally, endogenous peptide ligands isolated from Ptal-N*01:01 displayed a relatively broad length distribution and an unusual preference for a C-terminal proline residue. Finally, we demonstrate that this preference for C-terminal proline residues was observed in Hendra virus-derived peptides presented by Ptal-N*01:01 on the surface of infected cells. To our knowledge, this is the first study to identify endogenous and viral MHC class I ligands for any bat species and, as such, provides an important avenue for monitoring and development of vaccines against major bat-borne viruses both in the reservoir and spillover hosts. Additionally, it will provide a foundation to understand the role of adaptive immunity in bat antiviral responses.
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Affiliation(s)
- James W Wynne
- CSIRO Health and Biosecurity, Australian Animal Health Laboratory, Geelong, Victoria 3220, Australia
| | - Amanda P Woon
- Infection and Immunity Program, Biomedicine Discovery Institute, Monash University, Clayton, Victoria 3800, Australia; Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria 3800, Australia; and
| | - Nadine L Dudek
- Infection and Immunity Program, Biomedicine Discovery Institute, Monash University, Clayton, Victoria 3800, Australia; Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria 3800, Australia; and
| | - Nathan P Croft
- Infection and Immunity Program, Biomedicine Discovery Institute, Monash University, Clayton, Victoria 3800, Australia; Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria 3800, Australia; and
| | - Justin H J Ng
- Program in Emerging Infectious Diseases, Duke-National University of Singapore Graduate Medical School, Singapore 169857, Republic of Singapore
| | - Michelle L Baker
- CSIRO Health and Biosecurity, Australian Animal Health Laboratory, Geelong, Victoria 3220, Australia
| | - Lin-Fa Wang
- Program in Emerging Infectious Diseases, Duke-National University of Singapore Graduate Medical School, Singapore 169857, Republic of Singapore
| | - Anthony W Purcell
- Infection and Immunity Program, Biomedicine Discovery Institute, Monash University, Clayton, Victoria 3800, Australia; Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria 3800, Australia; and
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193
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Coumans JVF, Palanisamy SKA, McFarlane J, Moens PDJ. Proteomic and Microscopic Strategies towards the Analysis of the Cytoskeletal Networks in Major Neuropsychiatric Disorders. Int J Mol Sci 2016; 17:E581. [PMID: 27104521 PMCID: PMC4849037 DOI: 10.3390/ijms17040581] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 04/06/2016] [Accepted: 04/08/2016] [Indexed: 11/17/2022] Open
Abstract
Mental health disorders have become worldwide health priorities. It is estimated that in the next 20 years they will account for a 16 trillion United State dollars (US$) loss. Up to now, the underlying pathophysiology of psychiatric disorders remains elusive. Altered cytoskeleton proteins expression that may influence the assembly, organization and maintenance of cytoskeletal integrity has been reported in major depressive disorders, schizophrenia and to some extent bipolar disorders. The use of quantitative proteomics, dynamic microscopy and super-resolution microscopy to investigate disease-specific protein signatures holds great promise to improve our understanding of these disorders. In this review, we present the currently available quantitative proteomic approaches use in neurology, gel-based, stable isotope-labelling and label-free methodologies and evaluate their strengths and limitations. We also reported on enrichment/subfractionation methods that target the cytoskeleton associated proteins and discuss the need of alternative methods for further characterization of the neurocytoskeletal proteome. Finally, we present live cell imaging approaches and emerging dynamic microscopy technology that will provide the tools necessary to investigate protein interactions and their dynamics in the whole cells. While these areas of research are still in their infancy, they offer huge potential towards the understanding of the neuronal network stability and its modification across neuropsychiatric disorders.
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Affiliation(s)
- Joëlle V F Coumans
- School of Rural Medicine, University of New England, Armidale, NSW 2351, Australia.
| | - Suresh K A Palanisamy
- Center for Bioactive Discovery in Health and Aging, School of Science and Technology, University of New England, Armidale, NSW 2351, Australia.
| | - Jim McFarlane
- Center for Bioactive Discovery in Health and Aging, School of Science and Technology, University of New England, Armidale, NSW 2351, Australia.
| | - Pierre D J Moens
- Center for Bioactive Discovery in Health and Aging, School of Science and Technology, University of New England, Armidale, NSW 2351, Australia.
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194
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Laiho JE, Oikarinen M, Richardson SJ, Frisk G, Nyalwidhe J, Burch TC, Morris MA, Oikarinen S, Pugliese A, Dotta F, Campbell-Thompson M, Nadler J, Morgan NG, Hyöty H. Relative sensitivity of immunohistochemistry, multiple reaction monitoring mass spectrometry, in situ hybridization and PCR to detect Coxsackievirus B1 in A549 cells. J Clin Virol 2016; 77:21-8. [PMID: 26875099 PMCID: PMC5364806 DOI: 10.1016/j.jcv.2016.01.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Revised: 12/14/2015] [Accepted: 01/28/2016] [Indexed: 11/17/2022]
Abstract
BACKGROUND Enteroviruses (EVs) have been linked to the pathogenesis of several diseases and there is a collective need to develop improved methods for the detection of these viruses in tissue samples. OBJECTIVES This study evaluates the relative sensitivity of immunohistochemistry (IHC), proteomics, in situ hybridization (ISH) and RT-PCR to detect one common EV, Coxsackievirus B1 (CVB1), in acutely infected human A549 cells in vitro. STUDY DESIGN A549 cells were infected with CVB1 and diluted with uninfected A549 cells to produce a limited dilution series in which the proportion of infected cells ranged from 10(-1) to 10(-8). Analyses were carried out by several laboratories using IHC with different anti-EV antibodies, ISH with both ViewRNA and RNAScope systems, liquid chromatography multiple reaction monitoring mass spectrometry (LC/MRM/MS/MS), and two modifications of RT-PCR. RESULTS RT-PCR was the most sensitive method for EV detection yielding positive signals in the most diluted sample (10(-8)). LC/MRM/MS/MS detected viral peptides at dilutions as high as 10(-7). The sensitivity of IHC depended on the antibody used, and the most sensitive antibody (Dako clone 5D8/1) detected virus proteins at a dilution of 10(-6), while ISH detected the virus at dilutions of 10(-4). CONCLUSIONS All methods were able to detect CVB1 in infected A549 cells. RT-PCR was most sensitive followed by LC/MRM/MS/MS and then IHC. The results from this in vitro survey suggest that all methods are suitable tools for EV detection but that their differential sensitivities need to be considered when interpreting the results from such studies.
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Affiliation(s)
- Jutta E Laiho
- Department of Virology, School of Medicine, University of Tampere, Tampere, Finland.
| | - Maarit Oikarinen
- Department of Virology, School of Medicine, University of Tampere, Tampere, Finland.
| | | | - Gun Frisk
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden.
| | - Julius Nyalwidhe
- Microbiology and Molecular Cell Biology, Eastern Virginia Medical School, Norfolk, USA; Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, Norfolk, USA.
| | - Tanya C Burch
- Microbiology and Molecular Cell Biology, Eastern Virginia Medical School, Norfolk, USA; Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, Norfolk, USA.
| | - Margaret A Morris
- Microbiology and Molecular Cell Biology, Eastern Virginia Medical School, Norfolk, USA; Internal Medicine, Eastern Virginia Medical School, Norfolk, USA.
| | - Sami Oikarinen
- Department of Virology, School of Medicine, University of Tampere, Tampere, Finland.
| | - Alberto Pugliese
- Diabetes Research Institute and Departments of Medicine, Microbiology and Immunology, University of Miami Miller School of Medicine, Miami, USA.
| | - Francesco Dotta
- Diabetes Unit, Dept. of Medicine Surgery and Neurosciences, University of Siena; Fondazione Umberto Di Mario ONLUS-Toscana Life Sciences, Siena, Italy,.
| | | | - Jerry Nadler
- Internal Medicine, Eastern Virginia Medical School, Norfolk, USA.
| | - Noel G Morgan
- University of Exeter Medical School, Exeter, Devon, UK.
| | - Heikki Hyöty
- Department of Virology, School of Medicine, University of Tampere, Tampere, Finland; Fimlab Laboratories, Pirkanmaa Hospital District, Tampere, Finland.
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195
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Zheng N, Zeng J, Manney A, Williams L, Aubry AF, Voronin K, Buzescu A, Zhang YJ, Allentoff A, Xu C, Shen H, Warner W, Arnold ME. Quantitation of a PEGylated protein in monkey serum by UHPLC-HRMS using a surrogate disulfide-containing peptide: A new approach to bioanalysis and in vivo stability evaluation of disulfide-rich protein therapeutics. Anal Chim Acta 2016; 916:42-51. [DOI: 10.1016/j.aca.2016.02.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Revised: 02/06/2016] [Accepted: 02/11/2016] [Indexed: 11/29/2022]
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196
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Jones JJ, Wilcox BE, Benz RW, Babbar N, Boragine G, Burrell T, Christie EB, Croner LJ, Cun P, Dillon R, Kairs SN, Kao A, Preston R, Schreckengaust SR, Skor H, Smith WF, You J, Hillis WD, Agus DB, Blume JE. A Plasma-Based Protein Marker Panel for Colorectal Cancer Detection Identified by Multiplex Targeted Mass Spectrometry. Clin Colorectal Cancer 2016; 15:186-194.e13. [PMID: 27237338 PMCID: PMC8961700 DOI: 10.1016/j.clcc.2016.02.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 02/03/2016] [Indexed: 02/06/2023]
Abstract
Combining potential diagnostics markers might be necessary to achieve sufficient diagnostic test performance in a complex state such as cancer. Applying this philosophy, we have identified a 13-protein, blood-based classifier for the detection of colorectal cancer. Using mass spectrometry, we evaluated 187 proteins in a case-control study design with 274 samples and achieved a validation of 0.91 receiver operating characteristic area under the curve.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Phong Cun
- Applied Proteomics, Inc., San Diego, CA
| | | | | | - Athit Kao
- Applied Proteomics, Inc., San Diego, CA
| | | | | | | | | | - Jia You
- Applied Proteomics, Inc., San Diego, CA
| | | | - David B Agus
- USC Norris Westside Cancer Center and USC Center for Applied Molecular Medicine, Beverly Hills, CA
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197
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Sabbagh B, Mindt S, Neumaier M, Findeisen P. Clinical applications of MS-based protein quantification. Proteomics Clin Appl 2016; 10:323-45. [DOI: 10.1002/prca.201500116] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 11/18/2015] [Accepted: 12/30/2015] [Indexed: 12/14/2022]
Affiliation(s)
- Bassel Sabbagh
- Institute for Clinical Chemistry; Medical Faculty Mannheim of the University of Heidelberg; University Hospital Mannheim; Mannheim Germany
| | - Sonani Mindt
- Institute for Clinical Chemistry; Medical Faculty Mannheim of the University of Heidelberg; University Hospital Mannheim; Mannheim Germany
| | - Michael Neumaier
- Institute for Clinical Chemistry; Medical Faculty Mannheim of the University of Heidelberg; University Hospital Mannheim; Mannheim Germany
| | - Peter Findeisen
- Institute for Clinical Chemistry; Medical Faculty Mannheim of the University of Heidelberg; University Hospital Mannheim; Mannheim Germany
- MVZ Labor Dr. Limbach und Kollegen; Heidelberg Germany
- Working Group Proteomics of the German United Society for Clinical Chemistry and Laboratory Medicine e.V. (DGKL); Bonn Germany
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198
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Lamberti Y, Cafiero JH, Surmann K, Valdez H, Holubova J, Večerek B, Sebo P, Schmidt F, Völker U, Rodriguez ME. Proteome analysis of Bordetella pertussis isolated from human macrophages. J Proteomics 2016; 136:55-67. [DOI: 10.1016/j.jprot.2016.02.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Revised: 02/05/2016] [Accepted: 02/07/2016] [Indexed: 12/13/2022]
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199
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Oral squamous cell carcinoma: Key clinical questions, biomarker discovery, and the role of proteomics. Arch Oral Biol 2016; 63:53-65. [DOI: 10.1016/j.archoralbio.2015.11.017] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Revised: 09/08/2015] [Accepted: 11/20/2015] [Indexed: 12/19/2022]
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200
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McJimpsey EL. Molecular Form Differences Between Prostate-Specific Antigen (PSA) Standards Create Quantitative Discordances in PSA ELISA Measurements. Sci Rep 2016; 6:22050. [PMID: 26911983 PMCID: PMC4766849 DOI: 10.1038/srep22050] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Accepted: 02/04/2016] [Indexed: 11/09/2022] Open
Abstract
The prostate-specific antigen (PSA) assays currently employed for the detection of prostate cancer (PCa) lack the specificity needed to differentiate PCa from benign prostatic hyperplasia and have high false positive rates. The PSA calibrants used to create calibration curves in these assays are typically purified from seminal plasma and contain many molecular forms (intact PSA and cleaved subforms). The purpose of this study was to determine if the composition of the PSA molecular forms found in these PSA standards contribute to the lack of PSA test reliability. To this end, seminal plasma purified PSA standards from different commercial sources were investigated by western blot (WB) and in multiple research grade PSA ELISAs. The WB results revealed that all of the PSA standards contained different mass concentrations of intact and cleaved molecular forms. Increased mass concentrations of intact PSA yielded higher immunoassay absorbance values, even between lots from the same manufacturer. Standardization of seminal plasma derived PSA calibrant molecular form mass concentrations and purification methods will assist in closing the gaps in PCa testing measurements that require the use of PSA values, such as the % free PSA and Prostate Health Index by increasing the accuracy of the calibration curves.
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Affiliation(s)
- Erica L McJimpsey
- National Institute of Standards and Technology, Material Measurement Laboratory, Gaithersburg, Maryland, 20878, USA.,Department of Chemistry, Western Illinois University, Macomb, Illinois, 61455, USA
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