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Zakharova NV, Shornikova AY, Bugrova AE, Baybakova VV, Indeykina MI, Kononikhin AS, Popov IA, Kechko OI, Makarov AA, Nikolaev EN. Evaluation of plasma peptides extraction methods by high-resolution mass spectrometry. Eur J Mass Spectrom (Chichester) 2017; 23:209-212. [PMID: 29028405 DOI: 10.1177/1469066717720907] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Monitoring of peptides offers a promising approach for the discovery of novel biomarkers, which might be valuable for detection, treatment and prevention of large variety of diseases. Development of highly effective methods for plasma peptide extraction remains an important task. In the current study, we applied different types of plasma peptide extraction approaches to reveal efficient methods which would provide the highest peptide yield. We used different combinations of plasma treatment with acetonitrile and/or urea/guanidine, protein precipitation by acetone, gel-filtration, ultrafiltration, and two types of solid phase extraction. The extracted peptides were analyzed by LC-MS/MS. The obtained results suggest that several methods, including differential solubilization, organic precipitation, as well as some variants of ultrafiltration and solid phase extraction, provide effective plasma peptide enrichment convenient for further LC-MS/MS analysis. Alas, most of the identified peptides were extracted by only one of the applied methods. Hence, it seems reasonable to consider several methods to increase the possibility of novel biomarker discovery.
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Affiliation(s)
- N V Zakharova
- 1 Emanuel Institute for Biochemical Physics, Russian Academy of Sciences, Moscow, Russia
- 2 Moscow Institute of Physics and Technology, Dolgoprudny, Russia
| | - A Y Shornikova
- 3 School of chemistry, Department of analytical chemistry, Lomonosov Moscow State University, Moscow, Russia
| | - A E Bugrova
- 1 Emanuel Institute for Biochemical Physics, Russian Academy of Sciences, Moscow, Russia
| | - V V Baybakova
- 2 Moscow Institute of Physics and Technology, Dolgoprudny, Russia
| | - M I Indeykina
- 1 Emanuel Institute for Biochemical Physics, Russian Academy of Sciences, Moscow, Russia
- 4 V.L. Talrose Institute for Energy Problems of Chemical Physics, Russian Academy of Sciences, Moscow, Russia
| | - A S Kononikhin
- 1 Emanuel Institute for Biochemical Physics, Russian Academy of Sciences, Moscow, Russia
- 2 Moscow Institute of Physics and Technology, Dolgoprudny, Russia
- 4 V.L. Talrose Institute for Energy Problems of Chemical Physics, Russian Academy of Sciences, Moscow, Russia
| | - I A Popov
- 1 Emanuel Institute for Biochemical Physics, Russian Academy of Sciences, Moscow, Russia
- 2 Moscow Institute of Physics and Technology, Dolgoprudny, Russia
- 4 V.L. Talrose Institute for Energy Problems of Chemical Physics, Russian Academy of Sciences, Moscow, Russia
| | - O I Kechko
- 5 Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - A A Makarov
- 5 Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - E N Nikolaev
- 1 Emanuel Institute for Biochemical Physics, Russian Academy of Sciences, Moscow, Russia
- 2 Moscow Institute of Physics and Technology, Dolgoprudny, Russia
- 4 V.L. Talrose Institute for Energy Problems of Chemical Physics, Russian Academy of Sciences, Moscow, Russia
- 6 Skolkovo Institute of Science and Technology, Moscow, Russia
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