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Shibata K, Hagiya S, Okawara R, Abe K, Takahashi S, Kera Y. Liquid chromatography-electrospray ionization-tandem mass spectrometric assay for d-aspartate N-methyltransferase activity in ark shells. Biosci Biotechnol Biochem 2019; 84:500-506. [PMID: 31694479 DOI: 10.1080/09168451.2019.1689094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
A liquid chromatography-electrospray ionization-tandem mass spectrometry (LC-ESI-MS/MS) method for the separation and quantification of the enantiomers of N-methylaspartate and N-methylglutamate, after derivatization with Nα-(5-fluoro-2,4-dinitrophenyl)-L-leucinamide was established. The time required for the LC-ESI-MS/MS analysis was within 20 min and the detection limit was approximately 10 fmol per injection, demonstrating that this method can be used for the rapid determination of D-aspartate N-methyltransferase activity in the ark shell clam Scapharca broughtonii.Abbreviations: NMDA: N-methyl-D-aspartate; NMLA: N-methyl-L-aspartate; NMDG: N-methyl-D-glutamate; NMLG: N-methyl-L-glutamate; NMA: N-methylaspartate; NMG: N-methylglutamate; HPLC: high-performance liquid chromatography; SAM: S-adenosyl-L-methionine; OPA: o-phthalaldehyde; LC-ESI-MS/MS: liquid chromatography-electrospray ionization-tandem mass spectrometry; FDLA: Nα-(5-fluoro-2,4-dinitrophenyl)-L-leucinamide; FDAA: Nα-(5-fluoro-2,4-dinitrophenyl)-L-alaninamide; ESI: electrospray ionization; LC-ESI-MS: liquid chromatography-electrospray ionization-mass spectrometry; MS/MS: tandem mass spectrometry.
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Affiliation(s)
- Kimihiko Shibata
- Department of Applied Chemistry and Biochemistry, National Institute of Technology (KOSEN), Fukushima College, Iwaki, Fukushima, Japan.,Department of Bioengineering, Nagaoka University of Technology, Nagaoka, Niigata, Japan
| | - Saho Hagiya
- Department of Applied Chemistry and Biochemistry, National Institute of Technology (KOSEN), Fukushima College, Iwaki, Fukushima, Japan
| | - Rena Okawara
- Department of Applied Chemistry and Biochemistry, National Institute of Technology (KOSEN), Fukushima College, Iwaki, Fukushima, Japan
| | - Katsumasa Abe
- Department of Bioengineering, Nagaoka University of Technology, Nagaoka, Niigata, Japan
| | - Shouji Takahashi
- Department of Bioengineering, Nagaoka University of Technology, Nagaoka, Niigata, Japan
| | - Yoshio Kera
- Department of Bioengineering, Nagaoka University of Technology, Nagaoka, Niigata, Japan
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Fontanarosa C, Pane F, Sepe N, Pinto G, Trifuoggi M, Squillace M, Errico F, Usiello A, Pucci P, Amoresano A. Quantitative determination of free D-Asp, L-Asp and N-methyl-D-aspartate in mouse brain tissues by chiral separation and Multiple Reaction Monitoring tandem mass spectrometry. PLoS One 2017; 12:e0179748. [PMID: 28662080 PMCID: PMC5491048 DOI: 10.1371/journal.pone.0179748] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2016] [Accepted: 06/02/2017] [Indexed: 02/02/2023] Open
Abstract
Several studies have suggested that free d-Asp has a crucial role in N-methyl d-Asp receptor-mediated neurotransmission playing very important functions in physiological and pathological processes. This paper describes the development of an analytical procedure for the direct and simultaneous determination of free d-Asp, l-Asp and N-methyl d-Asp in specimens of different mouse brain tissues using chiral LC-MS/MS in Multiple Reaction Monitoring scan mode. After comparing three procedures and different buffers and extraction solvents, a simple preparation procedure was selected the analytes of extraction. The method was validated by analyzing l-Asp, d-Asp and N-methyl d-Asp recovery at different spiked concentrations (50, 100 and 200 pg/μl) yielding satisfactory recoveries (75–110%), and good repeatability. Limits of detection (LOD) resulted to be 0.52 pg/μl for d-Asp, 0.46 pg/μl for l-Asp and 0.54 pg/μl for NMDA, respectively. Limits of quantification (LOQ) were 1.57 pg/μl for d-Asp, 1.41 pg/μl for l-Asp and 1.64 pg/μl for NMDA, respectively. Different concentration levels were used for constructing the calibration curves which showed good linearity. The validated method was then successfully applied to the simultaneous detection of d-Asp, l-Asp and NMDA in mouse brain tissues. The concurrent, sensitive, fast, and reproducible measurement of these metabolites in brain tissues will be useful to correlate the amount of free d-Asp with relevant neurological processes, making the LC-MS/MS MRM method well suited, not only for research work but also for clinical analyses.
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Affiliation(s)
- Carolina Fontanarosa
- Department of Chemical Sciences, University of Naples “Federico II”, Naples, Italy
- Istituto Nazionale Biostrutture e Biosistemi, Roma, Italy
| | - Francesca Pane
- Department of Chemical Sciences, University of Naples “Federico II”, Naples, Italy
- Istituto Nazionale Biostrutture e Biosistemi, Roma, Italy
| | - Nunzio Sepe
- Department of Chemical Sciences, University of Naples “Federico II”, Naples, Italy
| | - Gabriella Pinto
- Department of Chemical Sciences, University of Naples “Federico II”, Naples, Italy
| | - Marco Trifuoggi
- Department of Chemical Sciences, University of Naples “Federico II”, Naples, Italy
| | - Marta Squillace
- CEINGE Advanced Biotechnology, University of Naples “Federico II”, Naples, Italy
| | - Francesco Errico
- CEINGE Advanced Biotechnology, University of Naples “Federico II”, Naples, Italy
- Department of Molecular Medicine and Medical Biotechnology, University of Naples “Federico II”, Naples, Italy
| | - Alessandro Usiello
- CEINGE Advanced Biotechnology, University of Naples “Federico II”, Naples, Italy
| | - Piero Pucci
- Department of Chemical Sciences, University of Naples “Federico II”, Naples, Italy
- CEINGE Advanced Biotechnology, University of Naples “Federico II”, Naples, Italy
| | - Angela Amoresano
- Department of Chemical Sciences, University of Naples “Federico II”, Naples, Italy
- Istituto Nazionale Biostrutture e Biosistemi, Roma, Italy
- * E-mail:
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Analysis of biologically-active, endogenous carboxylic acids based on chromatography-mass spectrometry. Trends Analyt Chem 2014. [DOI: 10.1016/j.trac.2014.05.008] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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