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Shen L, Yamamoto T, Tan XW, Ogata K, Ando E, Ozeki E, Matsuura E. Identification and visualization of oxidized lipids in atherosclerotic plaques by microscopic imaging mass spectrometry-based metabolomics. Atherosclerosis 2020; 311:1-12. [PMID: 32911376 DOI: 10.1016/j.atherosclerosis.2020.08.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 07/20/2020] [Accepted: 08/20/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND AIMS Dysregulated lipid metabolism has emerged as one of the major risk factors of atherosclerosis. Presently, there is a consensus that oxidized LDL (oxLDL) promotes development of atherosclerosis and downstream chronic inflammatory responses. Due to the dynamic metabolic disposition of lipoprotein, conventional approach to purify bioactive lipids for subsequent comprehensive analysis has proven to be inadequate for elucidation of the oxidized lipids species accountable for pathophysiology of atherosclerotic lesions. Herein, we aimed to utilize a novel mass microscopic imaging technology, coupled with mass spectrometry (MS) to characterize oxidized lipids in atherosclerotic lesions. METHODS We attempted to use MALDI-TOF-MS and iMScope to identify selected oxidized lipid targets and visualize their respective localizations in study models of atherosclerosis. RESULTS Based on the MS analysis, detection of 7-K under positive ionization through product ion peak at m/z 383 [M + H-H2O] indicated the distinctive presence of targeted lipid within Cu2+-oxLDL and Cu2+-oxLDL loaded macrophage-like J774A.1 cells, along with other cholesterol oxidation products. Moreover, the application of two-dimensional iMScope has successfully visualized the localization of lipids in aortic atherosclerotic plaques of the Watanabe heritable hyperlipidemic (WHHL) rabbit. Distinctive lipid distribution profiles were observed in atherosclerotic lesions of different sizes, especially the localizations of lysoPCs in atherosclerotic plaques. CONCLUSIONS Taken together, we believe that both MALDI-TOF-MS and iMScope metabolomics technology may offer a novel proposition for future pathophysiological studies of lipid metabolism in atherosclerosis.
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Affiliation(s)
- Lianhua Shen
- Collaborative Research Center (OMIC), 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan; Department of Pathophysiology, Zunyi Medical University, 6 West Xuefu Road, Xinpu District, Zunyi City, Guizhou, 563003, China; Technology Research Laboratory, Shimadzu Corporation, 3-9-4 Hikaridai, Seika-cho, Soraku-gun, Kyoto, 619-0237, Japan
| | - Takushi Yamamoto
- Analytical & Measuring Instruments Division, Shimadzu Corporation, 1 Nishinokyo, Kuwabara-cho, Nakagyo-ku, Kyoto, 604-8511, Japan
| | - Xian Wen Tan
- Department of Cell Chemistry, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Koretsugu Ogata
- Analytical & Measuring Instruments Division, Shimadzu Corporation, 1 Nishinokyo, Kuwabara-cho, Nakagyo-ku, Kyoto, 604-8511, Japan
| | - Eiji Ando
- Analytical & Measuring Instruments Division, Shimadzu Corporation, 1 Nishinokyo, Kuwabara-cho, Nakagyo-ku, Kyoto, 604-8511, Japan
| | - Eiichi Ozeki
- Technology Research Laboratory, Shimadzu Corporation, 3-9-4 Hikaridai, Seika-cho, Soraku-gun, Kyoto, 619-0237, Japan
| | - Eiji Matsuura
- Collaborative Research Center (OMIC), 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan; Department of Cell Chemistry, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan; Neutron Therapy Research Center, Okayama University, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan.
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Jaggard MKJ, Boulangé CL, Akhbari P, Vaghela U, Bhattacharya R, Williams HRT, Lindon JC, Gupte CM. A systematic review of the small molecule studies of osteoarthritis using nuclear magnetic resonance and mass spectroscopy. Osteoarthritis Cartilage 2019; 27:560-570. [PMID: 30287397 DOI: 10.1016/j.joca.2018.08.024] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Revised: 07/23/2018] [Accepted: 08/28/2018] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To perform a systematic review of the small molecule metabolism studies of osteoarthritis utilising nuclear magnetic resonance (NMR) or mass spectroscopy (MS) analysis (viz., metabolomics or metabonomics), thereby providing coherent conclusions and reference material for future study. METHOD We applied PRISMA guidelines (PROSPERO 95068) with the following MESH terms: 1. "osteoarthritis" AND ("metabolic" OR "metabonomic" OR "metabolomic" OR "metabolism") 2. ("synovial fluid" OR "cartilage" OR "synovium" OR "serum" OR "plasma" OR "urine") AND ("NMR" or "Mass Spectroscopy"). Databases searched were "Medline" and "Embase". Studies were searched in English and excluded review articles not containing original research. Study outcomes were significant or notable metabolites, species (human or animal) and the Newcastle-Ottawa Score. RESULTS In the 27 studies meeting the inclusion criteria, there was a shift towards anaerobic and fatty acid metabolism in OA disease, although whether this represents the inflammatory state remains unclear. Lipid structure and composition was altered within disease subclasses including phosphatidyl choline (PC) and the sphingomyelins. Macromolecular proteoglycan destruction was described, but the correlation to disease factors was not demonstrated. Collated results suggested arachidonate signalling pathways and androgen sex hormones as future metabolic pathways for investigation. CONCLUSION Our meta-analysis demonstrates significant small molecule differences between sample types, between species (such as human and bovine), with potential OA biomarkers and targets for local or systemic therapies. Studies were limited by numbers and a lack of disease correlation. Future studies should use NMR and MS analysis to further investigate large population subgroups including inflammatory arthropathy, OA subclasses, age and joint differences.
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Affiliation(s)
- M K J Jaggard
- Department of Orthopaedics & Trauma, Imperial College Healthcare NHS Trust, United Kingdom.
| | - C L Boulangé
- Division of Computational and Systems Medicine, Department of Surgery and Cancer, Imperial College London, United Kingdom
| | - P Akhbari
- Department of Orthopaedics & Trauma, Imperial College Healthcare NHS Trust, United Kingdom
| | - U Vaghela
- School of Medicine, Imperial College London, United Kingdom
| | - R Bhattacharya
- Department of Orthopaedics & Trauma, Imperial College Healthcare NHS Trust, United Kingdom
| | - H R T Williams
- Division of Digestive Diseases, Department of Surgery and Cancer, Imperial College London, United Kingdom
| | - J C Lindon
- Division of Computational and Systems Medicine, Department of Surgery and Cancer, Imperial College London, United Kingdom
| | - C M Gupte
- Department of Orthopaedics & Trauma, Imperial College Healthcare NHS Trust, United Kingdom
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