1
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Higashi T. Derivatization to generate a product ion containing analyte-specific moiety in ESI-MS/MS. ANAL SCI 2024; 40:973-974. [PMID: 38789687 DOI: 10.1007/s44211-024-00567-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2024]
Affiliation(s)
- Tatsuya Higashi
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan.
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2
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Jankech T, Gerhardtova I, Majerova P, Piestansky J, Jampilek J, Kovac A. Derivatization of carboxylic groups prior to their LC analysis - A review. Anal Chim Acta 2024; 1300:342435. [PMID: 38521569 DOI: 10.1016/j.aca.2024.342435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 02/26/2024] [Accepted: 02/27/2024] [Indexed: 03/25/2024]
Abstract
Carboxylic acids (CAs) represent a large group of important molecules participating in various biologically significant processes. Analytical study of these compounds is typically performed by liquid chromatography (LC) combined with various types of detection. However, their analysis is often accompanied by a wide variety of problems depending on used separation system or detection method. The dominant ones are: i) poor chromatographic behavior of the CAs in reversed-phase LC; ii) absence of a chromophore (or fluorophore); iii) weak ionization in mass spectrometry (MS). To overcome these problems, targeted chemical modification, and derivatization, come into play. Therefore, derivatization still plays an important and, in many cases, irreplaceable role in sample preparation, and new derivatization methods of CAs are constantly being developed. The most commonly used type of reaction for CAs derivatization is amidation. In recent years, an increased interest in the isotopic labeling derivatization method has been observed. In this review, we comprehensively summarize the possibilities and actual trends in the derivatization of CAs that have been published over the past decade.
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Affiliation(s)
- Timotej Jankech
- Institute of Neuroimmunology, Slovak Academy of Sciences, Dubravska cesta 9, 845 10 Bratislava, Slovak Republic; Department of Analytical Chemistry, Faculty of Natural Sciences, Comenius University Bratislava, Ilkovicova 6, 842 15 Bratislava, Slovak Republic
| | - Ivana Gerhardtova
- Institute of Neuroimmunology, Slovak Academy of Sciences, Dubravska cesta 9, 845 10 Bratislava, Slovak Republic; Department of Analytical Chemistry, Faculty of Natural Sciences, Comenius University Bratislava, Ilkovicova 6, 842 15 Bratislava, Slovak Republic
| | - Petra Majerova
- Institute of Neuroimmunology, Slovak Academy of Sciences, Dubravska cesta 9, 845 10 Bratislava, Slovak Republic
| | - Juraj Piestansky
- Institute of Neuroimmunology, Slovak Academy of Sciences, Dubravska cesta 9, 845 10 Bratislava, Slovak Republic; Department of Galenic Pharmacy, Faculty of Pharmacy, Comenius University Bratislava, Odbojarov 10, 832 32 Bratislava, Slovak Republic
| | - Josef Jampilek
- Institute of Neuroimmunology, Slovak Academy of Sciences, Dubravska cesta 9, 845 10 Bratislava, Slovak Republic; Department of Analytical Chemistry, Faculty of Natural Sciences, Comenius University Bratislava, Ilkovicova 6, 842 15 Bratislava, Slovak Republic
| | - Andrej Kovac
- Institute of Neuroimmunology, Slovak Academy of Sciences, Dubravska cesta 9, 845 10 Bratislava, Slovak Republic.
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3
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Maekawa M, Sato T, Kanno C, Sakamoto I, Kawasaki Y, Ito A, Mano N. Wide-Targeted Semi-Quantitative Analysis of Acidic Glycosphingolipids in Cell Lines and Urine to Develop Potential Screening Biomarkers for Renal Cell Carcinoma. Int J Mol Sci 2024; 25:4098. [PMID: 38612906 PMCID: PMC11012862 DOI: 10.3390/ijms25074098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 03/31/2024] [Accepted: 04/06/2024] [Indexed: 04/14/2024] Open
Abstract
Glycosphingolipids (GSLs), mainly located in the cell membrane, play various roles in cancer cell function. GSLs have potential as renal cell carcinoma (RCC) biomarkers; however, their analysis in body fluids is challenging because of the complexity of numerous glycans and ceramides. Therefore, we applied wide-targeted lipidomics using liquid chromatography-tandem mass spectrometry (LC-MS/MS) with selected reaction monitoring (SRM) based on theoretical mass to perform a comprehensive measurement of GSLs and evaluate their potency as urinary biomarkers. In semi-quantitative lipidomics, 240 SRM transitions were set based on the reported/speculated structures. We verified the feasibility of measuring GSLs in cells and medium and found that disialosyl globopentaosylceramide (DSGb5 (d18:1/16:0)) increased GSL in the ACHN medium. LC-MS/MS analysis of urine samples from clear cell RCC (ccRCC) patients and healthy controls showed a significant increase in the peak intensity of urinary DSGb5 (d18:1/16:0) in the ccRCC group compared with that in the control group. Receiver operating characteristic analysis indicated that urinary DSGb5 could serve as a sensitive and specific marker for RCC screening, with an AUC of 0.89. This study demonstrated the possibility of urinary screening using DSGb5 (d18:1/16:0). In conclusion, urinary DSGb5 (d18:1/16:0) was a potential biomarker for cancer screening, which could contribute to the treatment of RCC patients.
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Affiliation(s)
- Masamitsu Maekawa
- Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-Ku, Sendai 980-8574, Japan;
- Faculty of Pharmaceutical Sciences, Tohoku University, 1-1 Seiryo-machi, Aoba-Ku, Sendai 980-8574, Japan
| | - Tomonori Sato
- Department of Urology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-Ku, Sendai 980-8574, Japan; (T.S.); (I.S.); (Y.K.); (A.I.)
| | - Chika Kanno
- Faculty of Pharmaceutical Sciences, Tohoku University, 1-1 Seiryo-machi, Aoba-Ku, Sendai 980-8574, Japan
| | - Izumi Sakamoto
- Department of Urology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-Ku, Sendai 980-8574, Japan; (T.S.); (I.S.); (Y.K.); (A.I.)
| | - Yoshihide Kawasaki
- Department of Urology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-Ku, Sendai 980-8574, Japan; (T.S.); (I.S.); (Y.K.); (A.I.)
| | - Akihiro Ito
- Department of Urology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-Ku, Sendai 980-8574, Japan; (T.S.); (I.S.); (Y.K.); (A.I.)
| | - Nariyasu Mano
- Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-Ku, Sendai 980-8574, Japan;
- Faculty of Pharmaceutical Sciences, Tohoku University, 1-1 Seiryo-machi, Aoba-Ku, Sendai 980-8574, Japan
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4
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Zhang QF, Xiao HM, An N, Zhu QF, Feng YQ. Determination of vitamin D metabolites in various biological samples through an improved chemical derivatization assisted liquid chromatography-tandem mass spectrometry approach. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:6009-6014. [PMID: 37927098 DOI: 10.1039/d3ay01769a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
Vitamin D (VD) metabolites are involved in a variety of important metabolic processes and physiological effects in organisms. Profiling of VD metabolites favors a deep understanding of the physiological role of VD. However, VD metabolites are difficult to detect due to their high chemical structural rigidity, structural similarity, and low sensitivities under liquid chromatography-tandem mass spectrometry (LC-MS). Herein, we present a chemical derivatization assisted LC-MS/MS strategy for the detection of VDs, in which 4-phenyl-1,2,4-triazoline-3,5-dione (PTAD) is employed to derivatize the conjugated diene of VD metabolites and provides sensitizing reporters for MS detection. After PTAD derivatization, the sensitivities of seven VD metabolites increased by 24-276 folds, with the limits of detection ranging from 3 to 20 pg mL-1. Using this method, we achieved a sensitive and accurate quantification of 7 VD metabolites (vitamin D2, vitamin D3, 25-hydroxyvitamin D2, 25-hydroxyvitamin D3, 1,25-dihydroxyvitamin D2, 1,25-dihydroxyvitamin D3, and 1,24,25-trihydroxyvitamin D3) of the VD metabolic pathway in different trace biological samples, including human serum, mouse tissues (namely liver, kidney, lung, and spleen), and cells. We believe that the present method can provide a promising tool for an in-depth analysis of VD metabolism.
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Affiliation(s)
- Qin-Feng Zhang
- Department of Chemistry, Wuhan University, Wuhan 430072, PR China.
- Hubei Geological Research Laboratory, Wuhan 430034, PR China
| | - Hua-Ming Xiao
- Department of Chemistry, Wuhan University, Wuhan 430072, PR China.
| | - Na An
- Department of Chemistry, Wuhan University, Wuhan 430072, PR China.
| | - Quan-Fei Zhu
- School of Public Health, Wuhan University, Wuhan 430071, PR China.
| | - Yu-Qi Feng
- Department of Chemistry, Wuhan University, Wuhan 430072, PR China.
- School of Public Health, Wuhan University, Wuhan 430071, PR China.
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5
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Takada K, Ogawa S, Yoshida N, Higashi T. Separation and identification of monoglucuronides of vitamin D 3 metabolites in urine by derivatization-assisted LC/ESI-MS/MS using a new Cookson-type reagent. ANAL SCI 2023:10.1007/s44211-023-00350-4. [PMID: 37131118 DOI: 10.1007/s44211-023-00350-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Accepted: 04/17/2023] [Indexed: 05/04/2023]
Abstract
A liquid chromatography/electrospray ionization-tandem mass spectrometry (LC/ESI-MS/MS) method was developed using a new Cookson-type reagent, 4-[4-(1-pipelidinyl)phenyl]-1,2,4-triazoline-3,5-dione (PIPTAD), to analyze the monoglucuronides (Gs) of vitamin D3 metabolites in human urine. The G of 23S,25-dihydroxyvitamin D3 [23,25(OH)2D3] was previously found as a major metabolite of vitamin D3 in the urine, but its conjugation position remained undetermined. Determination of the position was an important research issue to clarify the whole picture of the excretion of surplus 25-hydroxyvitamin D3 [25(OH)D3, the circulating form of vitamin D3] in humans. After the pretreated urine sample was derivatized with PIPTAD, the peak corresponding to the G of 23,25(OH)2D3 was satisfactorily separated from the urine-derived interfering substances on reversed-phase LC, which could not be achieved by using the previous analogous reagent, DAPTAD. The PIPTAD-derivatized Gs of the vitamin D3 metabolites provided characteristic product ions useful for identifying the conjugation positions during the MS/MS. Accordingly, we successfully determined the glucuronidated position of 23,25(OH)2D3 to be the C23-hydroxy group. The developed method also enabled the simultaneous detection of Gs of 25(OH)D3 and 24R,25-dihydroxyvitamin D3 as well as 23,25(OH)2D3-23-G without interference from the urine components.
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Affiliation(s)
- Kazunari Takada
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan
| | - Shoujiro Ogawa
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan
- Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University, 1 Sanzo, Gakuen‑cho, Fukuyama, 729‑0292, Japan
| | - Natsuki Yoshida
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan
| | - Tatsuya Higashi
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan.
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6
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Binick S, Matthews SW, Kamp KJ, Heitkemper M. Vitamin D Measurement: Clinical Practice and Research Implications. J Nurse Pract 2022. [DOI: 10.1016/j.nurpra.2022.10.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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7
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Abe A, Maekawa M, Sato T, Sato Y, Kumondai M, Takahashi H, Kikuchi M, Higaki K, Ogura J, Mano N. Metabolic Alteration Analysis of Steroid Hormones in Niemann-Pick Disease Type C Model Cell Using Liquid Chromatography/Tandem Mass Spectrometry. Int J Mol Sci 2022; 23:ijms23084459. [PMID: 35457276 PMCID: PMC9025463 DOI: 10.3390/ijms23084459] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 04/12/2022] [Accepted: 04/17/2022] [Indexed: 02/05/2023] Open
Abstract
Niemann–Pick disease type C (NPC) is an autosomal recessive disease caused by a functional deficiency of cholesterol-transporting proteins in lysosomes, and exhibits various clinical symptoms. Since mitochondrial dysfunction in NPC has recently been reported, cholesterol catabolism to steroid hormones may consequently be impaired. In this study, we developed a comprehensive steroid hormone analysis method using liquid chromatography/tandem mass spectrometry (LC–MS/MS) and applied it to analyze changes in steroid hormone concentrations in NPC model cells. We investigated the analytical conditions for simultaneous LC–MS/MS analysis, which could be readily separated from each other and showed good reproducibility. The NPC phenotype was verified as an NPC model with mitochondrial abnormalities using filipin staining and organelle morphology observations. Steroid hormones in the cell suspension and cell culture medium were also analyzed. Steroid hormone analysis indicated that the levels of six steroid hormones were significantly decreased in the NPC model cell and culture medium compared to those in the wild-type cell and culture medium. These results indicate that some steroid hormones change during NPC pathophysiology and this change is accompanied by mitochondrial abnormalities.
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Affiliation(s)
- Ai Abe
- Faculty of Pharmaceutical Sciences, Tohoku University, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Japan; (A.A.); (M.K.); (N.M.)
- Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Japan; (T.S.); (Y.S.); (M.K.); (H.T.); (J.O.)
| | - Masamitsu Maekawa
- Faculty of Pharmaceutical Sciences, Tohoku University, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Japan; (A.A.); (M.K.); (N.M.)
- Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Japan; (T.S.); (Y.S.); (M.K.); (H.T.); (J.O.)
- Correspondence: ; Tel.: +81-22-717-7541
| | - Toshihiro Sato
- Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Japan; (T.S.); (Y.S.); (M.K.); (H.T.); (J.O.)
| | - Yu Sato
- Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Japan; (T.S.); (Y.S.); (M.K.); (H.T.); (J.O.)
| | - Masaki Kumondai
- Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Japan; (T.S.); (Y.S.); (M.K.); (H.T.); (J.O.)
| | - Hayato Takahashi
- Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Japan; (T.S.); (Y.S.); (M.K.); (H.T.); (J.O.)
| | - Masafumi Kikuchi
- Faculty of Pharmaceutical Sciences, Tohoku University, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Japan; (A.A.); (M.K.); (N.M.)
- Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Japan; (T.S.); (Y.S.); (M.K.); (H.T.); (J.O.)
| | - Katsumi Higaki
- Division of Functional Genomics, Research Centre for Bioscience and Technology, Faculty of Medicine, Tottori University, 86 Nishi-cho, Yonago 683-8503, Japan;
| | - Jiro Ogura
- Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Japan; (T.S.); (Y.S.); (M.K.); (H.T.); (J.O.)
| | - Nariyasu Mano
- Faculty of Pharmaceutical Sciences, Tohoku University, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Japan; (A.A.); (M.K.); (N.M.)
- Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Japan; (T.S.); (Y.S.); (M.K.); (H.T.); (J.O.)
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8
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Synthesis of Deuterium-Labeled Vitamin D Metabolites as Internal Standards for LC-MS Analysis. Molecules 2022; 27:molecules27082427. [PMID: 35458625 PMCID: PMC9025501 DOI: 10.3390/molecules27082427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 04/05/2022] [Accepted: 04/06/2022] [Indexed: 01/27/2023] Open
Abstract
Blood levels of the vitamin D3 (D3) metabolites 25-hydroxyvitamin D3 (25(OH)D3), 24R,25-dihydroxyvitamin D3, and 1α,25-dihydroxyvitamin D3 (1,25(OH)2D3) are recognized indicators for the diagnosis of bone metabolism-related diseases, D3 deficiency-related diseases, and hypercalcemia, and are generally measured by liquid-chromatography tandem mass spectrometry (LC-MS/MS) using an isotope dilution method. However, other D3 metabolites, such as 20-hydroxyvitamin D3 and lactone D3, also show interesting biological activities and stable isotope-labeled derivatives are required for LC-MS/MS analysis of their concentrations in serum. Here, we describe a versatile synthesis of deuterium-labeled D3 metabolites using A-ring synthons containing three deuterium atoms. Deuterium-labeled 25(OH)D3 (2), 25(OH)D3-23,26-lactone (6), and 1,25(OH)2D3-23,26-lactone (7) were synthesized, and successfully applied as internal standards for the measurement of these compounds in pooled human serum. This is the first quantification of 1,25(OH)2D3-23,26-lactone (7) in human serum.
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9
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Hughes CC. Chemical labeling strategies for small molecule natural product detection and isolation. Nat Prod Rep 2021; 38:1684-1705. [PMID: 33629087 DOI: 10.1039/d0np00034e] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Covering: Up to 2020.It is widely accepted that small molecule natural products (NPs) evolved to carry out a particular ecological function and that these finely-tuned molecules can sometimes be appropriated for the treatment of disease in humans. Unfortunately, for the natural products chemist, NPs did not evolve to possess favorable physicochemical properties needed for HPLC-MS analysis. The process known as derivatization, whereby an NP in a complex mixture is decorated with a nonnatural moiety using a derivatizing agent (DA), arose from this sad state of affairs. Here, NPs are freed from the limitations of natural functionality and endowed, usually with some degree of chemoselectivity, with additional structural features that make HPLC-MS analysis more informative. DAs that selectively label amines, carboxylic acids, alcohols, phenols, thiols, ketones, and aldehydes, terminal alkynes, electrophiles, conjugated alkenes, and isocyanides have been developed and will be discussed here in detail. Although usually employed for targeted metabolomics, chemical labeling strategies have been effectively applied to uncharacterized NP extracts and may play an increasing role in the detection and isolation of certain classes of NPs in the future.
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Affiliation(s)
- Chambers C Hughes
- Interfaculty Institute of Microbiology and Infection Medicine, University of Tübingen, Tübingen, Germany 72076.
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10
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Derivatization-based sample-multiplexing for enhancing throughput in liquid chromatography/tandem mass spectrometry quantification of metabolites: an overview. J Chromatogr A 2020; 1634:461679. [DOI: 10.1016/j.chroma.2020.461679] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 10/02/2020] [Accepted: 11/01/2020] [Indexed: 12/13/2022]
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11
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Seki M, Sato M, Takiwaki M, Takahashi K, Kikutani Y, Satoh M, Nomura F, Kuroda Y, Fukuzawa S. A novel caged Cookson-type reagent toward a practical vitamin D derivatization method for mass spectrometric analyses. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2020; 34:e8648. [PMID: 31715032 PMCID: PMC7064983 DOI: 10.1002/rcm.8648] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 11/01/2019] [Accepted: 11/03/2019] [Indexed: 05/05/2023]
Abstract
RATIONALE 25-Hydroxylated vitamin D is the best marker for vitamin D (VD). Due to its low ionization efficiency, a Cookson-type reagent, 1,2,4-triazoline-3,5-dione (TAD), is used to improve the detection/quantification of VD metabolites by liquid chromatography/tandem mass spectrometry (LC/MS/MS). However, the high reactivity of TAD makes its solution stability low and inconvenient for practical use. We here describe the development of a novel caged Cookson-type reagent, and we assess its performances in the quantitative and differential detection of four VD metabolites in serum using LC/MS/MS. METHODS Caged 4-(4'-dimethylaminophenyl)-1,2,4-triazoline-3,5-dione (DAPTAD) analogues were prepared from 4-(4'-dimethylaminophenyl)-1,2,4-triazolidine-3,5-dione. Their stability and reactivity were examined. The optimized caged DAPTAD (14-(4-(dimethylamino)phenyl)-9-phenyl-9,10-dihydro-9,10-[1,2]epitriazoloanthracene-13,15-dione, DAP-PA) was used for LC/MS/MS analyses of VD metabolites. RESULTS The solution stability of DAP-PA in ethyl acetate dramatically improved compared with that of the non-caged one. We measured the thermal retro-Diels-Alder reaction enabling the release of DAPTAD and found that the derivatization reaction was temperature-dependent. We also determined the detection limit and the lower limit of quantifications for four VD metabolites with DAPTAD derivatization. CONCLUSIONS DAP-PA was stable enough for mid- to long-term storage in solution. This advantage shall contribute to the detection and quantification of VD in clinical laboratories, and as such to the broader use of clinical mass spectrometry.
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Affiliation(s)
- Masahiko Seki
- Medical Association GroupTokuyama CorporationIbarakiJapan
| | - Makoto Sato
- Tsukuba Research LabTokuyama CorporationIbarakiJapan
| | - Masaki Takiwaki
- Open Innovation Promotion Department, Management Strategy Planning DivisionJEOL Ltd.TokyoJapan
- Division of Clinical Mass SpectrometryChiba University HospitalChibaJapan
| | - Koji Takahashi
- Open Innovation Promotion Department, Management Strategy Planning DivisionJEOL Ltd.TokyoJapan
- Department of Biotechnology and Life Science, Faculty of TechnologyTokyo University of Agriculture and TechnologyTokyoJapan
| | - Yoshikuni Kikutani
- Open Innovation Promotion Department, Management Strategy Planning DivisionJEOL Ltd.TokyoJapan
- Department of Biotechnology and Life Science, Faculty of TechnologyTokyo University of Agriculture and TechnologyTokyoJapan
| | - Mamoru Satoh
- Division of Clinical Mass SpectrometryChiba University HospitalChibaJapan
| | - Fumio Nomura
- Division of Clinical Mass SpectrometryChiba University HospitalChibaJapan
| | - Yutaka Kuroda
- Department of Biotechnology and Life Science, Faculty of TechnologyTokyo University of Agriculture and TechnologyTokyoJapan
| | - Seketsu Fukuzawa
- Open Innovation Promotion Department, Management Strategy Planning DivisionJEOL Ltd.TokyoJapan
- Department of Biotechnology and Life Science, Faculty of TechnologyTokyo University of Agriculture and TechnologyTokyoJapan
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12
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Liu Y, Chen X, Yuan S, Liu W, He L, Zhang Q. Quantification of Alfacalcidol Tablets Dissolution Content by Chemical Derivatization and LC-MS. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2020; 2020:6201656. [PMID: 32089948 PMCID: PMC7029283 DOI: 10.1155/2020/6201656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 01/08/2020] [Indexed: 06/10/2023]
Abstract
Application of liquid chromatography-mass spectrometry (LC-MS) in analyzing the content of alfacalcidol tablets dissolution faces big challenges due to the low amount of alfacalcidol in each tablet and the low ionization efficacy of the compound with electrospray ionization (ESI) or atmospheric-pressure chemical ionization (APCI). Here, extraction, derivatization, and LC-MS quantitation method have been developed and validated for measuring alfacalcidol tablets dissolution content. After alfacalcidol dissolution solution was extracted with dichloromethane to remove surfactant and inorganic salts, alfacalcidol was then derivatized via a Cookson reagent, 4-phenyl-1, 2, 4-triazoline-3, 5-dione (PTAD), under ambient conditions. Alfacalcidol derivative was successfully analyzed by LC-MS. Limit of detection (LOD) of the derivatized alfacalcidol was improved 100 times (0.01 μg/mL) compared with the nontreated compound (1 μg/mL). The new method was then validated following International Conference on Harmonization (ICH) guidance. The method shows a good linearity with r 2 > 0.99. Interday and intraday reproducibility was 3.3% and 7.9%, respectively. This procedure can be used in quantification of alfacalcidol tablets dissolution content and corresponding pharmaceutical quality control.
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Affiliation(s)
- Yang Liu
- National Institutes for Food and Drug Control, Beijing 102629, China
| | - Xi Chen
- National Institutes for Food and Drug Control, Beijing 102629, China
- YanTai University, Shandong 264005, China
| | - Song Yuan
- National Institutes for Food and Drug Control, Beijing 102629, China
| | - Wanhui Liu
- YanTai University, Shandong 264005, China
| | - Lan He
- National Institutes for Food and Drug Control, Beijing 102629, China
| | - Qingsheng Zhang
- National Institutes for Food and Drug Control, Beijing 102629, China
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13
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Fraser WD, Tang JCY, Dutton JJ, Schoenmakers I. Vitamin D Measurement, the Debates Continue, New Analytes Have Emerged, Developments Have Variable Outcomes. Calcif Tissue Int 2020; 106:3-13. [PMID: 31741016 DOI: 10.1007/s00223-019-00620-2] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 09/23/2019] [Indexed: 10/25/2022]
Abstract
The demand for measurement of vitamin D metabolites for clinical diagnosis and to advance our understanding of the role of vitamin D in human health has significantly increased in the last decade. New developments in technologies employed have enabled the separation and quantification of additional metabolites and interferences. Also, developments of immunoassays have changed the landscape. Programmes and materials for assay standardisation, harmonisation and the expansion of the vitamin D external quality assurance scheme (DEQAS) with the provision of target values as measured by a reference measurement procedure have improved standardisation, quality assurance and comparability of measurements. In this article, we describe developments in the measurement of the commonly analysed vitamin D metabolites in clinical and research practice. We describe current analytical approaches, discuss differences between assays, their origin, and how these may be influenced by physiological and experimental conditions. The value of measuring metabolites beyond 25 hydroxyvitamin D (25(OH)D), the marker of vitamin D status, in routine clinical practice is not yet confirmed. Here we provide an overview of the value and application of the measurement of 1,25 dihydroxyvitamin D, 24,25 dihydroxyvitamin D and free 25OHD in the diagnosis of patients with abnormalities in vitamin D metabolism and for research purposes.
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Affiliation(s)
- William D Fraser
- Norwich Medical School, University of East Anglia, Norwich Research Park, Floor 2, Bob Champion Research and Education Building, James Watson Road, Norwich, NR4 7UQ, UK.
- Departments of Diabetes, Endocrinology and Clinical Biochemistry, Norfolk and Norwich University Hospital NHS Foundation Trust, Colney Lane, Norwich, UK.
| | - Jonathan C Y Tang
- Norwich Medical School, University of East Anglia, Norwich Research Park, Floor 2, Bob Champion Research and Education Building, James Watson Road, Norwich, NR4 7UQ, UK
| | - John J Dutton
- Norwich Medical School, University of East Anglia, Norwich Research Park, Floor 2, Bob Champion Research and Education Building, James Watson Road, Norwich, NR4 7UQ, UK
| | - Inez Schoenmakers
- Norwich Medical School, University of East Anglia, Norwich Research Park, Floor 2, Bob Champion Research and Education Building, James Watson Road, Norwich, NR4 7UQ, UK
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Derivatization for liquid chromatography-electrospray ionization-mass spectrometry analysis of small-molecular weight compounds. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2019.07.019] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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15
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Le (乐娟) J, Yuan (袁腾飞) TF, Geng (耿嘉庆) JQ, Wang (王少亭) ST, Li (李艳) Y, Zhang (张炳宏) BH. Acylation derivatization based LC-MS analysis of 25-hydroxyvitamin D from finger-prick blood. J Lipid Res 2019; 60:1058-1064. [PMID: 30902903 PMCID: PMC6495167 DOI: 10.1194/jlr.d092197] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 03/20/2019] [Indexed: 12/13/2022] Open
Abstract
Vitamin D metabolite analysis possessed significant clinical value for the pediatric department. However, invasive venipuncture sampling and high blood consumption inflicted much suffering on patients. For alleviation, we carried out a LC-MS method for 25-hydroxyvitamin D quantification in only 3 μl of plasma from the considerably less invasive finger-prick blood samples. To improve sensitivity, acylation on C3-hydroxyl (by isonicotinoyl chloride) rather than Diels-Alder adduction on s-cis-diene structure was for the very first time introduced into vitamin D metabolite derivatization. Compared with the existing derivatization approaches, this novel strategy not only prevented isomer interference, but also exhibited higher reacting throughput. For certification, the methodology was systematically validated and showed satisfying consistency with SRM927a. During clinical application, we found a convincing correlation between 25-hydroxyvitamin D and indirect/total bilirubin in jaundiced newborns. Such an observation indicated that vitamin D supplementation may help to achieve optimal outcomes in neonatal jaundice.
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Affiliation(s)
- Juan Le (乐娟)
- Department of Clinical LaboratoryRenmin Hospital of Wuhan University, 430060 Wuhan, China
| | - Teng-Fei Yuan (袁腾飞)
- Department of Clinical LaboratoryRenmin Hospital of Wuhan University, 430060 Wuhan, China
| | - Jia-Qing Geng (耿嘉庆)
- Pediatric DepartmentRenmin Hospital of Wuhan University, 430060 Wuhan, China
| | - Shao-Ting Wang (王少亭)
- Department of Clinical LaboratoryRenmin Hospital of Wuhan University, 430060 Wuhan, China
| | - Yan Li (李艳)
- Department of Clinical LaboratoryRenmin Hospital of Wuhan University, 430060 Wuhan, China
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Yoshimura Y, Hibi R, Nakata A, Togashi M, Ogawa S, Ishige T, Satoh M, Nomura F, Higashi T. Identification of conjugation positions of urinary glucuronidated vitamin D
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metabolites by LC/ESI–MS/MS after conversion to MS/MS‐fragmentable derivatives. Biomed Chromatogr 2019; 33:e4538. [DOI: 10.1002/bmc.4538] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 03/10/2019] [Accepted: 03/18/2019] [Indexed: 12/27/2022]
Affiliation(s)
- Yusuke Yoshimura
- Faculty of Pharmaceutical SciencesTokyo University of Science Noda‐shi Chiba Japan
| | - Ryuichiro Hibi
- Faculty of Pharmaceutical SciencesTokyo University of Science Noda‐shi Chiba Japan
| | - Akiho Nakata
- Faculty of Pharmaceutical SciencesTokyo University of Science Noda‐shi Chiba Japan
| | - Moeka Togashi
- Faculty of Pharmaceutical SciencesTokyo University of Science Noda‐shi Chiba Japan
| | - Shoujiro Ogawa
- Faculty of Pharmaceutical SciencesTokyo University of Science Noda‐shi Chiba Japan
| | - Takayuki Ishige
- Division of Laboratory MedicineChiba University Hospital Chiba Japan
| | - Mamoru Satoh
- Division of Clinical Mass SpectrometryChiba University Hospital Chiba Japan
| | - Fumio Nomura
- Division of Clinical Mass SpectrometryChiba University Hospital Chiba Japan
| | - Tatsuya Higashi
- Faculty of Pharmaceutical SciencesTokyo University of Science Noda‐shi Chiba Japan
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Tuckey RC, Cheng CYS, Slominski AT. The serum vitamin D metabolome: What we know and what is still to discover. J Steroid Biochem Mol Biol 2019; 186:4-21. [PMID: 30205156 PMCID: PMC6342654 DOI: 10.1016/j.jsbmb.2018.09.003] [Citation(s) in RCA: 135] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 09/04/2018] [Accepted: 09/04/2018] [Indexed: 01/08/2023]
Abstract
Vitamin D, referring to the two forms, D2 from the diet and D3 primarily derived from phototransformation in the skin, is a prohormone important in human health. The most hormonally active form, 1α,25-dihydroxyvitamin D (1α,25(OH)2D), formed from vitamin D via 25-hydroxyvitamin D (25(OH)D), is not only important for regulating calcium metabolism, but has many pleiotropic effects including regulation of the immune system and has anti-cancer properties. The major circulating form of vitamin D is 25(OH)D and both D2 and D3 forms are routinely measured by LC/MS/MS to assess vitamin D status, due to their relatively long half-lives and much higher concentrations compared to 1α,25(OH)2D. Inactivation of both 25(OH)D and 1α,25(OH)2D is catalyzed by CYP24A1 and 25-hydroxyvitamin D3 3-epimerase. Initial products from these enzymes acting on 25(OH)D3 are 24R,25(OH)2D3 and 3-epi-25(OH)D3, respectively, and both of these can also be measured routinely in some clinical laboratories to further document vitamin D status. With advances in LC/MS/MS and its increased availability, and with the help of studies with recombinant vitamin D-metabolizing enzymes, many other vitamin D metabolites have now been detected and in some cases quantitated, in human serum. CYP11A1 which catalyzes the first step in steroidogenesis, has been found to also act on vitamins D3 and D2 hydroxylating both at C20, but with some secondary metabolites produced by subsequent hydroxylations at other positions on the side chain. The major vitamin D3 metabolite, 20S-hydroxyvitamin D3 (20S(OH)D3), shows biological activity, often similar to 1α,25(OH)2D3 but without calcemic effects. Using standards produced enzymatically by purified CYP11A1 and characterized by NMR, many of these new metabolites have been detected in human serum, with semi-quantitative measurement of 20S(OH)D3 indicating it is present at comparable concentrations to 24R,25(OH)2D3 and 3-epi-25(OH)D3. Recently, vitamin D-related hydroxylumisterols derived from lumisterol3, a previtamin D3 photoproduct, have also been measured in human serum and displayed biological activity in initial in vitro studies. With the current extensive knowledge on the reactions and pathways of metabolism of vitamin D, especially those catalyzed by CYP24A1, CYP27A1, CYP27B1, CYP3A4 and CYP11A1, it is likely that many other of the resulting hydroxyvitamin D metabolites will be measured in human serum in the future, some contributing to a more detailed understanding of vitamin D status in health and disease.
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Affiliation(s)
- Robert C Tuckey
- School of Molecular Sciences, The University of Western Australia, Perth, WA, 6009, Australia.
| | - Chloe Y S Cheng
- School of Molecular Sciences, The University of Western Australia, Perth, WA, 6009, Australia
| | - Andrzej T Slominski
- Department of Dermatology, University of Alabama at Birmingham, AL, 35294, USA; Comprehensive Cancer Center Cancer Chemoprevention Program, University of Alabama at Birmingham, AL, 35294, USA; VA Medical Center, Birmingham, AL, 35294, USA
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Ishige T, Satoh M, Ogawa S, Nishimura M, Matsushita K, Higashi T, Nomura F. Improved sensitivity of serum/plasma 1α,25-dihydroxyvitamin D quantification by DAPTAD derivatization. Clin Chim Acta 2017; 473:173-179. [PMID: 28864231 DOI: 10.1016/j.cca.2017.08.033] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 08/28/2017] [Accepted: 08/28/2017] [Indexed: 11/27/2022]
Abstract
BACKGROUND Although immunoassays have several limitations such as the cross-reactivities of antibodies, such techniques are widely used for serum/plasma 1,25(OH)2D quantification. An accurate method is required for the determination of the 1,25(OH)2D status. METHODS We designed a serum/plasma 1,25(OH)2D quantification method using LC-MS/MS. Immunoaffinity extraction (IE) and the recently developed Cookson-type reagent 4-(4'-dimethylaminophenyl)-1,2,4-triazoline-3,5-dione (DAPTAD) were used for sample preparation and derivatization, respectively. Analytical and pre-analytical validations were performed. Serum 1,25(OH)2D3 concentrations were determined in 232 healthy Japanese individuals. RESULTS The intra- and inter-assay CVs for 1,25(OH)2D3 were 5.2% and 7.0%, respectively. The limit of quantification for 1,25(OH)2D3 was 7.1pg/ml. Rheumatoid factor (RF) at concentrations below 517IU/ml did not affect serum 1,25(OH)2D analysis. No significant differences were observed for various blood collection tubes, repeated freeze-thaw cycles, whole blood standing time, or serum storage time. A strong correlation between LC-MS/MS and radioimmunoassay (RIA) was observed (r=0.786), but serum 1,25(OH)2D concentrations obtained from RIA were 2-fold higher than those obtained from LC-MS/MS. Serum 1,25(OH)2D3 concentrations by LC-MS/MS were 18.7-53.9pg/ml. CONCLUSION A highly sensitive and selective LC-MS/MS-based serum/plasma 1,25(OH)2D quantification method was developed using IE and DAPTAD derivatization. This method will enable the accurate determination of serum/plasma 1,25(OH)2D concentrations in the clinical setting.
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Affiliation(s)
- Takayuki Ishige
- Division of Laboratory Medicine, Chiba University Hospital, Chiba, Japan.
| | - Mamoru Satoh
- Division of Clinical Mass Spectrometry, Chiba University Hospital, Chiba, Japan
| | - Shoujiro Ogawa
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, Chiba, Japan
| | - Motoi Nishimura
- Division of Laboratory Medicine, Chiba University Hospital, Chiba, Japan
| | | | - Tatsuya Higashi
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, Chiba, Japan
| | - Fumio Nomura
- Division of Clinical Mass Spectrometry, Chiba University Hospital, Chiba, Japan
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Advances in derivatization approaches for increasing the sensitivity of small molecules. Bioanalysis 2017. [PMID: 28627223 DOI: 10.4155/bio-2017-0089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Direct aqueous measurement of 25-hydroxyvitamin D levels in a cellular environment by LC-MS/MS using the novel chemical derivatization reagent MDBP. Anal Bioanal Chem 2017; 409:2705-2714. [DOI: 10.1007/s00216-017-0215-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Revised: 01/07/2017] [Accepted: 01/16/2017] [Indexed: 12/22/2022]
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