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Griffiths D, Anderson M, Richardson K, Inaba-Inoue S, Allen WJ, Collinson I, Beis K, Morris M, Giles K, Politis A. Cyclic Ion Mobility for Hydrogen/Deuterium Exchange-Mass Spectrometry Applications. Anal Chem 2024; 96:5869-5877. [PMID: 38561318 PMCID: PMC11024883 DOI: 10.1021/acs.analchem.3c05753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 03/20/2024] [Accepted: 03/21/2024] [Indexed: 04/04/2024]
Abstract
Hydrogen/deuterium exchange-mass spectrometry (HDX-MS) has emerged as a powerful tool to probe protein dynamics. As a bottom-up technique, HDX-MS provides information at peptide-level resolution, allowing structural localization of dynamic changes. Consequently, the HDX-MS data quality is largely determined by the number of peptides that are identified and monitored after deuteration. Integration of ion mobility (IM) into HDX-MS workflows has been shown to increase the data quality by providing an orthogonal mode of peptide ion separation in the gas phase. This is of critical importance for challenging targets such as integral membrane proteins (IMPs), which often suffer from low sequence coverage or redundancy in HDX-MS analyses. The increasing complexity of samples being investigated by HDX-MS, such as membrane mimetic reconstituted and in vivo IMPs, has generated need for instrumentation with greater resolving power. Recently, Giles et al. developed cyclic ion mobility (cIM), an IM device with racetrack geometry that enables scalable, multipass IM separations. Using one-pass and multipass cIM routines, we use the recently commercialized SELECT SERIES Cyclic IM spectrometer for HDX-MS analyses of four detergent solubilized IMP samples and report its enhanced performance. Furthermore, we develop a novel processing strategy capable of better handling multipass cIM data. Interestingly, use of one-pass and multipass cIM routines produced unique peptide populations, with their combined peptide output being 31 to 222% higher than previous generation SYNAPT G2-Si instrumentation. Thus, we propose a novel HDX-MS workflow with integrated cIM that has the potential to enable the analysis of more complex systems with greater accuracy and speed.
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Affiliation(s)
- Damon Griffiths
- Faculty
of Biology, Medicine and Health, School of Biological Sciences, The University of Manchester, Manchester M13 9PT, United Kingdom
- Manchester
Institute of Biotechnology, University of
Manchester, Princess
Street, Manchester M1 7DN, United Kingdom
| | - Malcolm Anderson
- Waters
Corporation, Stamford Avenue, Altrincham Road, Wilmslow SK9 4AX, United
Kingdom
| | - Keith Richardson
- Waters
Corporation, Stamford Avenue, Altrincham Road, Wilmslow SK9 4AX, United
Kingdom
| | - Satomi Inaba-Inoue
- Department
of Life Sciences, Imperial College London, Exhibition Road, South Kensington, London SW7 2AZ, United Kingdom
- Rutherford
Appleton Laboratory, Research Complex at Harwell, Oxfordshire, Didcot OX11 0FA, United Kingdom
- Diffraction
and Scattering Division, Japan Synchrotron
Radiation Research Institute, SPring-8, 1-1-1, Kouto, Sayo, Hyogo 679-5198, Japan
| | - William J. Allen
- School
of Biochemistry, University of Bristol, Bristol BS8 1TD, United Kingdom
| | - Ian Collinson
- School
of Biochemistry, University of Bristol, Bristol BS8 1TD, United Kingdom
| | - Konstantinos Beis
- Department
of Life Sciences, Imperial College London, Exhibition Road, South Kensington, London SW7 2AZ, United Kingdom
- Rutherford
Appleton Laboratory, Research Complex at Harwell, Oxfordshire, Didcot OX11 0FA, United Kingdom
| | - Michael Morris
- Waters
Corporation, Stamford Avenue, Altrincham Road, Wilmslow SK9 4AX, United
Kingdom
| | - Kevin Giles
- Waters
Corporation, Stamford Avenue, Altrincham Road, Wilmslow SK9 4AX, United
Kingdom
| | - Argyris Politis
- Faculty
of Biology, Medicine and Health, School of Biological Sciences, The University of Manchester, Manchester M13 9PT, United Kingdom
- Manchester
Institute of Biotechnology, University of
Manchester, Princess
Street, Manchester M1 7DN, United Kingdom
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Rubio A, Thomas A, Euler L, Geyer H, Krug O, Reis G, Padilha MC, Pereira HMG, Muniz-Santos R, Cameron LC, Stojanovic B, Kuehne D, Lagojda A, McLeod MD, Thevis M. Investigations into Annona fruit consumption as a potential source of dietary higenamine intake in the context of sports drug testing. Drug Test Anal 2023; 15:1488-1502. [PMID: 37525530 DOI: 10.1002/dta.3558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/17/2023] [Accepted: 07/17/2023] [Indexed: 08/02/2023]
Abstract
Higenamine is prohibited in sports as a β2 -agonist by the World Anti-Doping Agency. As a key component of a great variety of plants, including the Annonaceae family, one aim of this research project was to evaluate whether the ingestion of Annona fruit could lead to higenamine adverse analytical findings. Single-dose administration studies including three Annona species (i.e., Annona muricata, Annona cherimola, and Annona squamosa) were conducted, leading to higenamine findings below the established minimum reporting level (MRL) of 10 ng/mL in urine. In consideration of cmax values (7.8 ng/mL) observed for higenamine up to 24 h, a multidose administration study was also conducted, indicating cumulative effects, which can increase the risk of exceeding the applicable MRL doping after Annona fruit ingestion. In this study, however, the MRL was not exceeded at any time point. Further, the major urinary excretion of higenamine in its sulfo-conjugated form was corroborated, its stability in urine was assessed, and in the absence of reference material, higenamine sulfo-conjugates were synthesized and comprehensively characterized, suggesting the predominant presence of higenamine 7-sulfate. In addition, the option to include complementary biomarkers of diet-related higenamine intake into routine doping controls was investigated. A characteristic urinary pattern attributed to isococlaurine, reticuline, and a yet not fully characterized bismethylated higenamine glucuronide was observed after Annona ingestion but not after supplement use, providing a promising dataset of urinary biomarkers, which supports the discrimination between different sources of urinary higenamine detected in sports drug testing programs.
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Affiliation(s)
- Ana Rubio
- Laboratory Medicine Department, Hospital Universitario Son Espases, Palma, Spain
| | - Andreas Thomas
- Center for Preventive Doping Research - Institute of Biochemistry, German Sport University Cologne, Cologne, Germany
| | - Luisa Euler
- Center for Preventive Doping Research - Institute of Biochemistry, German Sport University Cologne, Cologne, Germany
| | - Hans Geyer
- Center for Preventive Doping Research - Institute of Biochemistry, German Sport University Cologne, Cologne, Germany
- European Monitoring Center for Emerging Doping Agents (EuMoCEDA), Cologne/Bonn, Germany
| | - Oliver Krug
- Center for Preventive Doping Research - Institute of Biochemistry, German Sport University Cologne, Cologne, Germany
- European Monitoring Center for Emerging Doping Agents (EuMoCEDA), Cologne/Bonn, Germany
| | - Gabriel Reis
- Brazilian Doping Control Laboratory (LBCD - LADETEC/IQ - UFRJ) - Chemistry Institute, Rio de Janeiro, Brazil
| | - Monica Costa Padilha
- Brazilian Doping Control Laboratory (LBCD - LADETEC/IQ - UFRJ) - Chemistry Institute, Rio de Janeiro, Brazil
| | | | - Renan Muniz-Santos
- Laboratory of Protein Biochemistry, The Federal University of State of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Luiz Claudio Cameron
- Laboratory of Protein Biochemistry, The Federal University of State of Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Dirk Kuehne
- Crop Science Division, Bayer AG, Monheim, Germany
| | | | - Malcolm Donald McLeod
- Research School of Chemistry, Australian National University, Canberra, Australian Capital Territory, Australia
| | - Mario Thevis
- Center for Preventive Doping Research - Institute of Biochemistry, German Sport University Cologne, Cologne, Germany
- European Monitoring Center for Emerging Doping Agents (EuMoCEDA), Cologne/Bonn, Germany
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Morillon AC, Yakkundi S, Thomas G, Gethings LA, Langridge JI, Baker PN, Kenny LC, English JA, McCarthy FP. Association between phospholipid metabolism in plasma and spontaneous preterm birth: a discovery lipidomic analysis in the cork pregnancy cohort. Metabolomics 2020; 16:19. [PMID: 31974687 PMCID: PMC6978438 DOI: 10.1007/s11306-020-1639-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 01/13/2020] [Indexed: 01/21/2023]
Abstract
INTRODUCTION Preterm birth (PTB) is defined as birth occurring before 37 weeks' gestation, affects 5-9% of all pregnancies in developed countries, and is the leading cause of perinatal mortality. Spontaneous preterm birth (sPTB) accounts for 31-50% of all PTB, but the underlying pathophysiology is poorly understood. OBJECTIVE This study aimed to decipher the lipidomics pathways involved in pathophysiology of sPTB. METHODS Blood samples were taken from SCreening fOr Pregnancy Endpoints (SCOPE), an international study that recruited 5628 nulliparous women, with a singleton low-risk pregnancy. Our analysis focused on plasma from SCOPE in Cork. Discovery profiling of the samples was undertaken using liquid chromatography-mass spectrometry Lipidomics, and features significantly altered between sPTB (n = 16) and Control (n = 32) groups were identified using empirical Bayes testing, adjusting for multiple comparisons. RESULTS Twenty-six lipids showed lower levels in plasma of sPTB compared to controls (adjusted p < 0.05), including 20 glycerophospholipids (12 phosphatidylcholines, 7 phosphatidylethanolamines, 1 phosphatidylinositol) and 6 sphingolipids (2 ceramides and 4 sphingomyelines). In addition, a diaglyceride, DG (34:4), was detected in higher levels in sPTB compared to controls. CONCLUSIONS We report reduced levels of plasma phospholipids in sPTB. Phospholipid integrity is linked to biological membrane stability and inflammation, while storage and breakdown of lipids have previously been implicated in pregnancy complications. The contribution of phospholipids to sPTB as a cause or effect is still unclear; however, our results of differential plasma phospholipid expression represent another step in advancing our understanding of the aetiology of sPTB. Further work is needed to validate these findings in independent pregnancy cohorts.
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Affiliation(s)
- Aude-Claire Morillon
- Department of Obstetrics and Gynaecology, The Irish Centre for Maternal and Child Health Research (INFANT), University College Cork, Cork, Ireland
| | - Shirish Yakkundi
- Department of Obstetrics and Gynaecology, The Irish Centre for Maternal and Child Health Research (INFANT), University College Cork, Cork, Ireland
| | | | - Lee A Gethings
- Waters Corporation, Wilmslow, UK
- Division of Infection and Respiratory Medicine, Faculty of Biology, Medicine and Health, Manchester Institute of Biotechnology, University of Manchester, Manchester, UK
| | | | - Philip N Baker
- College of Life Sciences, University of Leicester, Leicester, UK
| | - Louise C Kenny
- Department of Women's and Children's Health, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Jane A English
- Department of Obstetrics and Gynaecology, The Irish Centre for Maternal and Child Health Research (INFANT), University College Cork, Cork, Ireland.
- Department of Anatomy and Neuroscience, University College Cork, Western Gateway Building, Western Road, Cork, Ireland.
| | - Fergus P McCarthy
- Department of Obstetrics and Gynaecology, The Irish Centre for Maternal and Child Health Research (INFANT), University College Cork, Cork, Ireland
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St John ER, Balog J, McKenzie JS, Rossi M, Covington A, Muirhead L, Bodai Z, Rosini F, Speller AVM, Shousha S, Ramakrishnan R, Darzi A, Takats Z, Leff DR. Rapid evaporative ionisation mass spectrometry of electrosurgical vapours for the identification of breast pathology: towards an intelligent knife for breast cancer surgery. Breast Cancer Res 2017; 19:59. [PMID: 28535818 PMCID: PMC5442854 DOI: 10.1186/s13058-017-0845-2] [Citation(s) in RCA: 126] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Accepted: 04/25/2017] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Re-operation for positive resection margins following breast-conserving surgery occurs frequently (average = 20-25%), is cost-inefficient, and leads to physical and psychological morbidity. Current margin assessment techniques are slow and labour intensive. Rapid evaporative ionisation mass spectrometry (REIMS) rapidly identifies dissected tissues by determination of tissue structural lipid profiles through on-line chemical analysis of electrosurgical aerosol toward real-time margin assessment. METHODS Electrosurgical aerosol produced from ex-vivo and in-vivo breast samples was aspirated into a mass spectrometer (MS) using a monopolar hand-piece. Tissue identification results obtained by multivariate statistical analysis of MS data were validated by histopathology. Ex-vivo classification models were constructed from a mass spectral database of normal and tumour breast samples. Univariate and tandem MS analysis of significant peaks was conducted to identify biochemical differences between normal and cancerous tissues. An ex-vivo classification model was used in combination with bespoke recognition software, as an intelligent knife (iKnife), to predict the diagnosis for an ex-vivo validation set. Intraoperative REIMS data were acquired during breast surgery and time-synchronized to operative videos. RESULTS A classification model using histologically validated spectral data acquired from 932 sampling points in normal tissue and 226 in tumour tissue provided 93.4% sensitivity and 94.9% specificity. Tandem MS identified 63 phospholipids and 6 triglyceride species responsible for 24 spectral differences between tissue types. iKnife recognition accuracy with 260 newly acquired fresh and frozen breast tissue specimens (normal n = 161, tumour n = 99) provided sensitivity of 90.9% and specificity of 98.8%. The ex-vivo and intra-operative method produced visually comparable high intensity spectra. iKnife interpretation of intra-operative electrosurgical vapours, including data acquisition and analysis was possible within a mean of 1.80 seconds (SD ±0.40). CONCLUSIONS The REIMS method has been optimised for real-time iKnife analysis of heterogeneous breast tissues based on subtle changes in lipid metabolism, and the results suggest spectral analysis is both accurate and rapid. Proof-of-concept data demonstrate the iKnife method is capable of online intraoperative data collection and analysis. Further validation studies are required to determine the accuracy of intra-operative REIMS for oncological margin assessment.
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Affiliation(s)
- Edward R. St John
- Department of BioSurgery and Surgical Technology, Imperial College London, London, UK
| | - Julia Balog
- Division of Computational and Systems Medicine, Imperial College, London, UK
- Waters Research Centre, Budapest, Hungary
| | - James S. McKenzie
- Division of Computational and Systems Medicine, Imperial College, London, UK
| | - Merja Rossi
- Division of Computational and Systems Medicine, Imperial College, London, UK
| | - April Covington
- Department of BioSurgery and Surgical Technology, Imperial College London, London, UK
| | - Laura Muirhead
- Department of BioSurgery and Surgical Technology, Imperial College London, London, UK
| | - Zsolt Bodai
- Division of Computational and Systems Medicine, Imperial College, London, UK
| | - Francesca Rosini
- Division of Computational and Systems Medicine, Imperial College, London, UK
- Department of Pathology, Imperial College NHS Trust, London, UK
| | - Abigail V. M. Speller
- Division of Computational and Systems Medicine, Imperial College, London, UK
- Department of Pathology, Imperial College NHS Trust, London, UK
| | - Sami Shousha
- Department of Pathology, Imperial College NHS Trust, London, UK
| | | | - Ara Darzi
- Department of BioSurgery and Surgical Technology, Imperial College London, London, UK
| | - Zoltan Takats
- Division of Computational and Systems Medicine, Imperial College, London, UK
- Sir Alexander Fleming Building, South Kensington Campus, Imperial College, London, SW7 2AZ UK
| | - Daniel R. Leff
- Department of BioSurgery and Surgical Technology, Imperial College London, London, UK
- Department of BioSurgery and Surgical Technology, Clinical Senior Lecturer and Consultant Breast Surgeon, St Mary’s Hospital, 10th Floor, QEQM Wing, London, W2 1NY UK
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