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Kuzin AA, Stupnikova GS, Strelnikova PA, Danichkina KV, Indeykina MI, Pekov SI, Popov IA. Quantitative Assessment of Serine-8 Phosphorylated β-Amyloid Using MALDI-TOF Mass Spectrometry. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238406. [PMID: 36500498 PMCID: PMC9740911 DOI: 10.3390/molecules27238406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 11/27/2022] [Accepted: 11/29/2022] [Indexed: 12/03/2022]
Abstract
The study of the molecular mechanisms of the pathogenesis of Alzheimer's disease (AD) is extremely important for identifying potential therapeutic targets as well as early markers. In this regard, the study of the role of post-translational modifications (PTMs) of β-amyloid (Aβ) peptides is of particular relevance. Serine-8 phosphorylated forms (pSer8-Aβ) have been shown to have an increased aggregation capacity and may reflect the severity of amyloidosis. Here, an approach for quantitative assessment of pSer8-Aβ based on matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) is proposed. The relative fraction of pSer8-Aβ was estimated in the total Aβ-pool with a detection limit of 1 fmol for pSer8-Aβ (1-16) and an accuracy of 2% for measurements in the reflectron mode. The sensitivity of the developed method is suitable for determining the proportion of phosphorylated peptides in biological samples.
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Affiliation(s)
- Andrey A. Kuzin
- Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Russia
| | | | - Polina A. Strelnikova
- Emanuel Institute of Biochemical Physics, Russian Academy of Science, 119334 Moscow, Russia
- Skolkovo Institute of Science and Technology, 121205 Moscow, Russia
| | | | - Maria I. Indeykina
- Emanuel Institute of Biochemical Physics, Russian Academy of Science, 119334 Moscow, Russia
- Engelhardt Institute of Molecular Biology, 119991 Moscow, Russia
| | - Stanislav I. Pekov
- Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Russia
- Skolkovo Institute of Science and Technology, 121205 Moscow, Russia
- Engelhardt Institute of Molecular Biology, 119991 Moscow, Russia
- Siberian State Medical University, 634050 Tomsk, Russia
- Correspondence: (S.I.P.); (I.A.P.)
| | - Igor A. Popov
- Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Russia
- Siberian State Medical University, 634050 Tomsk, Russia
- Correspondence: (S.I.P.); (I.A.P.)
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Pekov SI, Ivanov DG, Bugrova AE, Indeykina MI, Zakharova NV, Popov IA, Kononikhin AS, Kozin SA, Makarov AA, Nikolaev EN. Evaluation of MALDI-TOF/TOF Mass Spectrometry Approach for Quantitative Determination of Aspartate Residue Isomerization in the Amyloid-β Peptide. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2019; 30:1325-1329. [PMID: 31073890 DOI: 10.1007/s13361-019-02199-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 03/11/2019] [Accepted: 03/29/2019] [Indexed: 06/09/2023]
Abstract
Immunoprecipitation (IP) combined with MALDI-TOF mass spectrometry is a powerful instrument for peptide and protein identification in biological samples. In this study, the analytical capabilities of MALDI-TOF/TOF mass spectrometry for relative quantitation of isoAsp7 in Aβ(1-42) and Aβ(1-16) were investigated. The possibility of quantitative determination of isoAsp7 in Aβ(1-42) with the detection limit as low as 2 pmol has been demonstrated. The same approach was applied for a shorter peptide Aβ(1-16) and resulted in enhanced accuracy (± 3.2%), and lower detection limit (50 fmol). Pilot experiments with artificial cerebrospinal fluid and mouse brain tissue were performed and showed that the proposed IP-MALDI-TOF/TOF approach could be applied for measuring isoAβ content in biological fluids and tissues. Additionally, it was shown that 6E10 anti-amyloid antibodies might affect the accuracy of the amyloid-β quantitation in the presence of the isomerized peptide.
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Affiliation(s)
- Stanislav I Pekov
- Moscow Institute of Physics and Technology, Dolgoprudny, Moscow region, Russia
- V.L. Talrose Institute for Energy Problems of Chemical Physics RAS, Moscow, Russia
| | - Daniil G Ivanov
- Moscow Institute of Physics and Technology, Dolgoprudny, Moscow region, Russia
- Emanuel Institute of Biochemical Physics RAS, Moscow, Russia
| | - Anna E Bugrova
- Emanuel Institute of Biochemical Physics RAS, Moscow, Russia
| | - Maria I Indeykina
- Moscow Institute of Physics and Technology, Dolgoprudny, Moscow region, Russia
- Emanuel Institute of Biochemical Physics RAS, Moscow, Russia
| | - Natalia V Zakharova
- Moscow Institute of Physics and Technology, Dolgoprudny, Moscow region, Russia
- Emanuel Institute of Biochemical Physics RAS, Moscow, Russia
| | - Igor A Popov
- Moscow Institute of Physics and Technology, Dolgoprudny, Moscow region, Russia.
| | - Alexey S Kononikhin
- Moscow Institute of Physics and Technology, Dolgoprudny, Moscow region, Russia.
- V.L. Talrose Institute for Energy Problems of Chemical Physics RAS, Moscow, Russia.
| | - Sergey A Kozin
- Engelhardt Institute of Molecular Biology RAS, Moscow, Russia
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Yin Z, Wang S, Shen B, Deng C, Tu Q, Jin Y, Shen L, Jiao B, Xiang J. Coimmunocapture and Electrochemical Quantitation of Total and Phosphorylated Amyloid-β40 Monomers. Anal Chem 2019; 91:3539-3545. [PMID: 30724072 DOI: 10.1021/acs.analchem.8b05307] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Zhenzhen Yin
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, PR China
| | - Shuhui Wang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, PR China
| | - Baochai Shen
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, PR China
| | - Chunyan Deng
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, PR China
| | - Qiuyun Tu
- Department of Geratology, The Third Xiangya Hospital, Central South University, Changsha 410013, Hunan PR China
| | - Yan Jin
- Department of Geratology, The Third Xiangya Hospital, Central South University, Changsha 410013, Hunan PR China
| | - Lu Shen
- Department of Neurology, Xiangya Hospital, Central South University, Changsha 410008, Hunan PR China
| | - Bin Jiao
- Department of Neurology, Xiangya Hospital, Central South University, Changsha 410008, Hunan PR China
| | - Juan Xiang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, PR China
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Jamasbi E, Separovic F, Hossain MA, Ciccotosto GD. Phosphorylation of a full length amyloid-β peptide modulates its amyloid aggregation, cell binding and neurotoxic properties. MOLECULAR BIOSYSTEMS 2018. [PMID: 28642958 DOI: 10.1039/c7mb00249a] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Amyloid beta peptide (Aβ) is the major protein component of the amyloid plaques that are present in the brains of Alzheimer's disease (AD) patients. Aβ42 peptide is a known neurotoxic agent that binds to neurons and, under specific aggregation conditions, triggers cell death. Aβ peptide can undergo specific amino acid posttranslational modifications, such as phosphorylation, that are important for modulating its proteolytic degradation, aggregation, binding to lipid membranes and neurotoxic functions. Peptides phosphorylated at serine 8 in full-length Aβ42 (pAβ42) were synthesised and compared to native Aβ42 peptide. Their secondary structures, aggregation properties and interactions with plasma membranes of primary cortical neurons were investigated. The results revealed that pAβ42 has increased β-sheet formation with rapid amyloid formation in a synthetic lipid environment, which was associated with increased cellular binding but concomitant diminished neurotoxicity. Our data support the notion that phosphorylation of Aβ42 promotes the formation of amyloid plaques in the brain, which lack the neurotoxic properties associated with oligomeric species causing pathogenesis in AD.
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Affiliation(s)
- Elaheh Jamasbi
- School of Chemistry and Bio21 Institute, The University of Melbourne, VIC 3010, Australia
| | - Frances Separovic
- School of Chemistry and Bio21 Institute, The University of Melbourne, VIC 3010, Australia
| | - Mohammed Akhter Hossain
- School of Chemistry and Bio21 Institute, The University of Melbourne, VIC 3010, Australia and The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, VIC 3010, Australia.
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Yang SS, Yu HX, Wang ZZ, Liu HL, Zhang H, Yu X, Shang W, Chen GQ, Gu ZY. An Exfoliated 2D Egyptian Blue Nanosheet for Highly Selective Enrichment of Multi-phosphorylated Peptides in Mass Spectrometric Analysis. Chemistry 2017; 24:2109-2116. [DOI: 10.1002/chem.201704138] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2017] [Indexed: 01/19/2023]
Affiliation(s)
- Shi-Shu Yang
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials Science, College of Life Sciences; Nanjing Normal University; Nanjing 210023 China
| | - Hai-Xia Yu
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials Science, College of Life Sciences; Nanjing Normal University; Nanjing 210023 China
| | - Zi-Zhen Wang
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials Science, College of Life Sciences; Nanjing Normal University; Nanjing 210023 China
| | - Hai-Long Liu
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials Science, College of Life Sciences; Nanjing Normal University; Nanjing 210023 China
| | - Hao Zhang
- Key Laboratory for Metabolic Diseases in Chinese Medicine, First College of Clinical Medicine; Nanjing University of, Chinese Medicine; Nanjing 210023 China
| | - Xizhong Yu
- Key Laboratory for Metabolic Diseases in Chinese Medicine, First College of Clinical Medicine; Nanjing University of, Chinese Medicine; Nanjing 210023 China
| | - Wenbin Shang
- Key Laboratory for Metabolic Diseases in Chinese Medicine, First College of Clinical Medicine; Nanjing University of, Chinese Medicine; Nanjing 210023 China
| | - Gui-Quan Chen
- State Key Laboratory of Pharmaceutical Biotechnology, MOE Key Laboratory of Model Animal for Disease Study, Model Animal Research Center; Nanjing University; 12 Xuefu Avenue Nanjing 210061 China
| | - Zhi-Yuan Gu
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials Science, College of Life Sciences; Nanjing Normal University; Nanjing 210023 China
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Kostyukevich YI, Kononikhin AS, Indeykina MI, Popov IA, Bocharov KV, Spassky AI, Kozin SA, Makarov AA, Nikolaev EN. Secondary structure of Aβ(1–16) complexes with zinc: A study in the gas phase using deuterium/hydrogen exchange and ultra-high-resolution mass spectrometry. Mol Biol 2017. [DOI: 10.1134/s0026893317030104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Kostyukevich YI, Kharybin ON, Kononikhin AS, Popov IA, Nikolaev EN. Deuterium–hydrogen exchange reactions in peptides and polyatomic organic compounds, as studied on an ion cyclotron resonance mass spectrometer equipped with an ion trap with dynamic harmonization. HIGH ENERGY CHEMISTRY 2016. [DOI: 10.1134/s0018143916030097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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