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Xie T, Huang L, Wang C. Identification of the metabolites of neocnidilide in rat, monkey and human liver microsomes by liquid chromatography coupled to benchtop Orbitrap mass spectrometry. Biomed Chromatogr 2023; 37:e5563. [PMID: 36484569 DOI: 10.1002/bmc.5563] [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: 11/02/2022] [Revised: 11/19/2022] [Accepted: 12/02/2022] [Indexed: 12/14/2022]
Abstract
Neocnidilide, a bioactive component isolated from Angelica sinensis (Oliv.) Diels, displayed anti-inflammatory activity. The present work was performed to investigate in vitro metabolism of neocnidilide using liver microsomes. Neocnidilide (10 μM) was incubated with NADPH-supplemented rat monkey and human liver microsomes. To identify the reactive metabolites, glutathione (GSH) was included in the incubations. Liquid chromatography coupled to an Orbitrap mass spectrometer was used to detect and identify the metabolites. The structures of the metabolites were characterized by accurate masses and fragmentation patterns. A total of six hydroxylation metabolites and nine GSH conjugates were tentatively identified characterized. The metabolic pathways included hydroxylation, dehydrogenation and GSH conjugation. M6 was the major metabolite in human liver microsomes. CYP1A2 (25%), 2B6 (31.6%), 2C9 (10.5%) and 3A4 (18%) were the predominant isoenzymes governing its formation. This study provides valuable information on the in vitro metabolism of neocnidilide, which is indispensable for the further safety assessment of this compound.
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Affiliation(s)
- Tiantian Xie
- Jiangsu Vocational College of Medicine, Yancheng, Jiangsu Province, China
| | - Lihua Huang
- Department of Pharmacy, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, Jiangsu Province, China
| | - Chengcheng Wang
- Jiangsu Vocational College of Medicine, Yancheng, Jiangsu Province, China
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Biotransformation of Penindolone, an Influenza A Virus Inhibitor. Molecules 2023; 28:molecules28031479. [PMID: 36771146 PMCID: PMC9920254 DOI: 10.3390/molecules28031479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 01/28/2023] [Accepted: 01/30/2023] [Indexed: 02/05/2023] Open
Abstract
Penindolone (PND) is a novel broad-spectrum anti-Influenza A Virus (IAV) agent blocking hemagglutinin-mediated adsorption and membrane fusion. The goal of this work was to reveal the metabolic route of PND in rats. Ultra-high-performance liquid chromatography tandem high-resolution mass spectrometry (UHPLC-HRMS) was used for metabolite identification in rat bile, feces and urine after administration of PND. A total of 25 metabolites, including 9 phase I metabolites and 16 phase II metabolites, were characterized. The metabolic pathways were proposed, and metabolites were visualized via Global Natural Product Social Molecular Networking (GNPS). It was found that 65.24-80.44% of the PND presented in the formation of glucuronide conjugate products in bile, and more than 51% of prototype was excreted through feces. In in vitro metabolism of PND by rat, mouse and human liver microsomes (LMs) system, PND was discovered to be eliminated in LMs to different extents with significant species differences. The effects of chemical inhibitors of isozymes on the metabolism of PND in vitro indicated that CYP2E1/2C9/3A4 and UGT1A1/1A6/1A9 were the metabolic enzymes responsible for PND metabolism. PND metabolism in vivo could be blocked by UGTs inhibitor (ibrutinib) to a certain extent. These findings provided a basis for further research and development of PND.
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Kong F, Wang T, You W. Identification and characterization of the in vitro metabolites of batatasin III by liquid chromatography in combination with Orbitrap mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2022; 36:e9361. [PMID: 35864564 DOI: 10.1002/rcm.9361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 07/19/2022] [Accepted: 07/20/2022] [Indexed: 06/15/2023]
Abstract
RATIONALE Batatasin III is a biologically active ingredient extracted from Dendrobium scabrilingue, which has been demonstrated to have anticancer activity. To fully understand its action, the present study was performed to investigate the in vitro metabolism of batatasin III using rat and human liver microsomes and hepatocytes. METHODS Batatasin III (20 μM) was incubated in the presence of NADPH-supplemented rat and human liver microsomes (0.5 mg protein/mL) and hepatocytes (1 million cells/mL) followed by liquid chromatography in combination with hybrid quadrupole Orbitrap tandem mass spectrometric analysis to detect and identify the generated metabolites. The structures of the metabolites were characterized by comparing the accurate masses, elemental compositions as well as indicative fragment ions with those of the parent. RESULTS A total of 15 metabolites were detected and identified, including 4 phase I and 11 phase II metabolites. Batatasin III is subjected to bioactivation to form reactive quinoid intermediates, which subsequently react with glutathione (GSH) via Michael addition. Glucuronidation and GSH conjugation appear to be the primary elimination pathways in rat hepatocytes, while in human hepatocytes, GSH conjugates are formed to a lesser extent. Phase I metabolic pathways include hydroxylation and demethylation. CONCLUSIONS The present study sheds light on the in vitro metabolic fates of batatasin III, which is indispensable for an understanding of its efficacy and safety.
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Affiliation(s)
- Fanjian Kong
- Department of Pharmacy, Affiliated Lianyungang Hospital of Xuzhou Medical University/First People's Hospital of Lianyungang, Lianyungang, Jiangsu Province, China
| | - Ting Wang
- Department of pharmacy, Zhangjiagang Hospital of Traditional Chinese Medicine, Zhangjiagang, Jiangsu Province, China
| | - Weili You
- Department of Pharmacy, Affiliated Lianyungang Hospital of Xuzhou Medical University/First People's Hospital of Lianyungang, Lianyungang, Jiangsu Province, China
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Zhu Y, Wang T, Zhao N, Jiang W. High-resolution accurate mass approach to characterization of SCO-267 metabolites using liquid chromatography hybrid quadrupole Orbitrap mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2022; 36:e9325. [PMID: 35560672 DOI: 10.1002/rcm.9325] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 05/09/2022] [Accepted: 05/10/2022] [Indexed: 06/15/2023]
Abstract
RATIONALE SCO-267 is a potent full agonist of G-protein-coupled receptor 40. As a promising therapeutic agent for type 2 diabetes mellitus, it is necessary to elucidate its metabolite profiles during the stage of drug development for safety considerations. METHODS The in vitro metabolism was investigated by incubating SCO-267 (5 μM) with liver microsomes and hepatocytes (rat and human). For in vivo metabolism, SCO-267 (10 mg/kg) was orally administered to rats and plasma samples were collected. The metabolites were identified via measurements of accurate mass, elemental composition and product ions using liquid chromatography coupled to hybrid quadrupole Orbitrap high-resolution mass spectrometry (LC-Orbitrap-MS). RESULTS A total of 19 metabolites were structurally identified. M2 (hydroxyl-SCO-267), M15 (SCO-267-acyl-glucuronide), M16 (desmethyl-SCO-267) and M17 (desneopentyl-SCO-267) were verified with reference standards. M2, M11, M16 and M17 were the major metabolites originating from hydroxylation, O-demethylation and N-dealkylation, respectively. Phenotyping study with recombinant human P450 enzymes demonstrated that hydroxylation (M2 and M11) was mainly catalyzed by CYP2C8 and 3A4; demethylation (M16) was mainly catalyzed by CYP2D6, and less catalyzed by CYP2C8 and 3A4; and N-dealkylation (M17) was exclusively triggered by CYP3A4. CONCLUSIONS Hydroxylation, O-demethylation, N-dealkylation and acyl glucuronidation were the major metabolic pathways of SCO-267. This study is the first to discover the metabolic fates of SCO-267, which provides a basis for safety assessment of this drug candidate.
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Affiliation(s)
- Ying Zhu
- Department of Pharmacy, Xuzhou Central Hospital, Jiangsu Province, Xuzhou, China
| | - Ting Wang
- Department of Pharmacy, Zhangjiagang Hospital of Traditional Chinese Medicine, Jiangsu Province, Zhangjiagang, China
| | - Na Zhao
- Department of Pharmacy, Zhangjiagang Hospital of Traditional Chinese Medicine, Jiangsu Province, Zhangjiagang, China
| | - Wenya Jiang
- Department of Pharmacy, Zhangjiagang Hospital of Traditional Chinese Medicine, Jiangsu Province, Zhangjiagang, China
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Yuan L, Li J, Feng M, Zou XR. Identification of the metabolites of XL092 in rat and human by using ultra-high performance liquid chromatography high resolution mass spectrometry. J Pharm Biomed Anal 2021; 206:114390. [PMID: 34600174 DOI: 10.1016/j.jpba.2021.114390] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 09/06/2021] [Accepted: 09/17/2021] [Indexed: 10/20/2022]
Abstract
XL092 is a novel tyrosine kinase inhibitor with antitumor activity. The goal of this study was to evaluate its in vitro metabolism of XL092 using rat and human liver microsomes and hepatocytes. The metabolites were identified using ultra-high performance liquid chromatography combined with high resolution mass spectrometry. The structure of the metabolite was characterized by accurate mass, elemental composition and MS/MS spectra. The cytochrome P450 enzyme responsible for XL092 metabolism was evaluated by using recombinant human CYP450 enzymes. A total of 26 metabolites, including 21 phase I metabolites and 5 phase II metabolites, were characterized. XL092 was metabolized mainly through oxidative defluorination, hydroxylation, N-demethylation, O-demethylation, amide hydrolysis, N-dealkylation, O-dealkylation, N-oxygenation and glucuronidation. Among these metabolites, M10 (oxidative defluorination) and M17 (hydroxylation) were the most abundant metabolites. CYP3A4 and CYP2D6 were the major enzymes responsible for XL092 metabolism. Taken together, this study for the first time evaluated the in vitro metabolic profiles of XL092 in rat and human, which is of great help for us to investigate the XL092 pharmacokinetic and toxicity assessment and to predict the in vivo human metabolism.
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Affiliation(s)
- Lin Yuan
- Department of Pharmacy, Suining Central Hospital, No. 127 West Desheng Road, Chuanshan District, Suining 629000, Sichuan Province, China.
| | - Jing Li
- Department of Pharmacy, Suining Central Hospital, No. 127 West Desheng Road, Chuanshan District, Suining 629000, Sichuan Province, China
| | - Min Feng
- Department of Pharmacy, Suining Central Hospital, No. 127 West Desheng Road, Chuanshan District, Suining 629000, Sichuan Province, China
| | - Xiao-Rong Zou
- Department of Pharmacy, Suining Central Hospital, No. 127 West Desheng Road, Chuanshan District, Suining 629000, Sichuan Province, China
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Su G, Qin L, Su X, Tao C. Pyrotinib in vitro metabolite profiling via rat, dog and human hepatocytes using liquid chromatography-quadrupole/orbitrap mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2021; 35:e9195. [PMID: 34491599 DOI: 10.1002/rcm.9195] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 09/04/2021] [Accepted: 09/05/2021] [Indexed: 02/05/2023]
Abstract
RATIONALE Pyrotinib is an irreversible EGFR/HER2 inhibitor that has shown antitumor activity and tolerance in the treatment of breast cancer. Studies focused on its metabolic pathways and major metabolites are insufficient. In the evaluation of drug safety and therapeutic use, metabolite characterization is critical. The metabolism of pyrotinib in vitro was studied utilizing rat, dog and human hepatocytes in this study. METHODS Pyrotinib (10 μM) was incubated with hepatocytes in Williams' E medium. The metabolites were examined and profiled using ultrahigh-performance liquid chromatography coupled with quadrupole/orbitrap high-resolution mass spectrometry. The metabolite structures were deduced by comparing their precise molecular weights, fragment ions and retention times with those of the parent drug. RESULTS A total of 16 metabolites, including 6 novel ones, were discovered and structurally described under the present conditions. Oxidation, demethylation, dehydrogenation, O-dealkylation and glutathione (GSH) conjugation were all involved in the metabolism of pyrotinib in hepatocytes. The most predominant metabolic route was identified as GSH conjugation (M5). CONCLUSIONS This study generated valuable metabolite profiles of pyrotinib in several species, which will aid in the understanding of the drug's disposition in various species and in evaluating the contribution of metabolites to overall effectiveness and toxicity of pyrotinib.
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Affiliation(s)
- Guosheng Su
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China.,Department of Laboratory Medicine, People's Hospital of Guangxi-ASEAN Economic and Technological Development Zone, Nanning Tenth People's Hospital, Nanning, Guangxi Province, China
| | - Lihua Qin
- Graduate School Master Arts of Nursing, University of Perpetual Help System DALTA, Las Piñas City, Philippines.,Department of Internal Medicine, People's Hospital of Guangxi-ASEAN Economic and Technological Development Zone, Nanning Tenth People's Hospital, Nanning, Guangxi Province, China
| | - Xiaoye Su
- Graduate School Master Arts of Nursing, University of Perpetual Help System DALTA, Las Piñas City, Philippines
| | - Chuanmin Tao
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
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An J, Yang J, Wei Y, Liu Y, Song Y, Zhang Z, Pan Y. Identification of the metabolites of rhapontigenin in rat and human by ultra-high-performance liquid chromatography-high-resolution mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2021; 35:e9180. [PMID: 34363627 DOI: 10.1002/rcm.9180] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Revised: 07/16/2021] [Accepted: 08/05/2021] [Indexed: 06/13/2023]
Abstract
RATIONALE Rhapontigenin, a stilbene compound isolated from the medicinal plant of rhubarb rhizomes, has shown a variety of biological activities. The purpose of this study was to identify and characterize the metabolites of rhapontigenin in rat liver microsomes, hepatocytes, urine, and human liver microsomes and hepatocytes. METHODS The samples were analyzed by ultra-high-performance liquid chromatography combined with electrospray ionization quadrupole/orbitrap high-resolution mass spectrometry (UPLC-Q/Orbitrap-HRMS). The structures of the metabolites were interpreted by MS, MS/MS data, and elemental compositions. RESULTS A total of 11 metabolites were detected and tentatively identified. M1, identified as piceatannol, was unambiguously identified using reference standard. Our results suggested that rhapontigenin was metabolized through the following pathways: (a) demethylation to produce piceatannol (M1), which further underwent oxidation to form ortho-quinone intermediate. This intermediate was reactive and conjugated with GSH (M10 and M11), which were further converted into N-acetyl-cysteine and excreted in urine. M1 also underwent sulfation (M8) and glucuronidation (M5); (b) direct sulfation, forming M6 and M7; and (c) direct glucuronidation to form M2, M3, and M4. Glucuronidation was a major metabolic pathway in hepatocytes and urine. CONCLUSIONS The current study provides an overview of the metabolism of rhapontigenin, which is of great importance for us to understand the disposition of this compound.
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Affiliation(s)
- Jingzhi An
- Department of Clinical Pharmacy, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Jie Yang
- Department of Clinical Pharmacy, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Yuan Wei
- Department of Clinical Pharmacy, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Yunsi Liu
- Department of Radiological, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Yan Song
- Department of Radiological, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Zuzhuo Zhang
- Department of Radiological, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Ying Pan
- Department of Pharmacy, The Third Hospital of Hebei Medical University, Shijiazhuang, China
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Qu SD, Liu GX. Daporinad in vitro metabolite profiling via rat, dog, monkey and human liver microsomes by liquid chromatography/quadrupole-orbitrap mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2021; 35:e9150. [PMID: 34159659 DOI: 10.1002/rcm.9150] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 06/15/2021] [Accepted: 06/18/2021] [Indexed: 06/13/2023]
Abstract
RATIONALE Daporinad is a novel and potent inhibitor of nicotinamide phosphoribosyl transferase with potential antineoplastic and antiangiogenic activities. We aimed to explore the metabolites of daporinad generated from liver microsomes and to propose metabolic pathways. METHODS The metabolites were generated by individually incubating daporinad (10 μM) with liver microsomes at 37°C for 60 min. The metabolites were identified by ultra-high-performance liquid chromatography/quadrupole-orbitrap mass spectrometry (UPLC/Q-Orbitrap-MS) using electrospray ionization in positive ion mode. They were deduced by accurate MS and MS/MS data. RESULTS In total, 16 metabolites were found and their identities were characterized. In rat, dog and human, they were minor; in monkey, M11 was the most abundant. Daporinad was metabolized mainly through N-dealkylation, amide hydrolysis, hydrogenation, oxygenation and dehydrogenation. There was no human-specific metabolite. CONCLUSIONS The current study provided an overview of the metabolism of daporinad, which is helpful in predicting in vivo metabolites and in selecting animal species for toxicology studies.
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Affiliation(s)
- Shan-Dan Qu
- Department of Pharmacy, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, China
| | - Guang-Xuan Liu
- Department of Pharmacy, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, China
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Thevis M, Piper T, Thomas A. Recent advances in identifying and utilizing metabolites of selected doping agents in human sports drug testing. J Pharm Biomed Anal 2021; 205:114312. [PMID: 34391136 DOI: 10.1016/j.jpba.2021.114312] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 08/03/2021] [Accepted: 08/05/2021] [Indexed: 12/29/2022]
Abstract
Probing for evidence of the administration of prohibited therapeutics, drugs and/or drug candidates as well as the use of methods of doping in doping control samples is a central assignment of anti-doping laboratories. In order to accomplish the desired analytical sensitivity, retrospectivity, and comprehensiveness, a considerable portion of anti-doping research has been invested into studying metabolic biotransformation and elimination profiles of doping agents. As these doping agents include lower molecular mass drugs such as e.g. stimulants and anabolic androgenic steroids, some of which further necessitate the differentiation of their natural/endogenous or xenobiotic origin, but also higher molecular mass substances such as e.g. insulins, growth hormone, or siRNA/anti-sense oligonucleotides, a variety of different strategies towards the identification of employable and informative metabolites have been developed. In this review, approaches supporting the identification, characterization, and implementation of metabolites exemplified by means of selected doping agents into routine doping controls are presented, and challenges as well as solutions reported and published between 2010 and 2020 are discussed.
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Affiliation(s)
- Mario Thevis
- Center for Preventive Doping Research - Institute of Biochemistry, German Sport University Cologne, Am Sportpark Müngersdorf 6, 50933, Cologne, Germany; European Monitoring Center for Emerging Doping Agents (EuMoCEDA), Cologne, Bonn, Germany.
| | - Thomas Piper
- Center for Preventive Doping Research - Institute of Biochemistry, German Sport University Cologne, Am Sportpark Müngersdorf 6, 50933, Cologne, Germany
| | - Andreas Thomas
- Center for Preventive Doping Research - Institute of Biochemistry, German Sport University Cologne, Am Sportpark Müngersdorf 6, 50933, Cologne, Germany
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Ruan Q, Comstock K. A New Workflow for Drug Metabolite Profiling by Utilizing Advanced Tribrid Mass Spectrometry and Data-Processing Techniques. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2021; 32:2050-2061. [PMID: 33998806 DOI: 10.1021/jasms.0c00436] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Drug metabolite profiling utilizes liquid chromatography with tandem mass spectrometry (LC/MS/MS) to acquire ample information for metabolite identification and structural elucidation. However, there are still challenges in detecting and characterizing all potential metabolites that can be masked by a high biological background, especially the unknown and uncommon ones. In this work, a novel metabolite profiling workflow was established on a platform using a state-of-the-art tribrid high-resolution mass spectrometry (HRMS) system. Primarily, an instrumental method was developed based on the novel design of the tribrid system that facilitates in-depth MSn scans with two fragmentation devices. Additionally, different advanced data acquisition techniques were assessed and compared, and automatic background exclusion and deep-scan approaches were adopted to promote assay efficiency and metabolite coverage. Finally, different data-analysis techniques were explored to fully extract metabolite data from the information-rich MS/MS data sets. Overall, a workflow combining tribrid mass spectrometry and advanced acquisition methodology has been developed for metabolite characterization in drug discovery and development. It maximizes the tribrid HRMS platform's utility and enhances the coverage, efficiency, quality, and speed of metabolite profiling assays.
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Affiliation(s)
- Qian Ruan
- Non-clinical Disposition and Bioanalysis, BMS, Princeton, New Jersey 08540, United States
| | - Kate Comstock
- Thermo Fisher Scientific, San Jose, California 95134, United States
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Kaur G, Shukla V, Kumar A, Kaur M, Goel P, Singh P, Shukla A, Meena V, Kaur J, Singh J, Mantri S, Rouached H, Pandey AK. Integrative analysis of hexaploid wheat roots identifies signature components during iron starvation. JOURNAL OF EXPERIMENTAL BOTANY 2019; 70:6141-6161. [PMID: 31738431 PMCID: PMC6859736 DOI: 10.1093/jxb/erz358] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 07/24/2019] [Indexed: 05/05/2023]
Abstract
Iron (Fe) is an essential micronutrient for all organisms. In crop plants, Fe deficiency can decrease crop yield significantly; however, our current understanding of how major crops respond to Fe deficiency remains limited. Herein, the effect of Fe deprivation at both the transcriptomic and metabolic level in hexaploid wheat was investigated. Genome-wide gene expression reprogramming was observed in wheat roots subjected to Fe starvation, with a total of 5854 genes differentially expressed. Homoeologue and subgenome-specific analysis unveiled the induction-biased contribution from the A and B genomes. In general, the predominance of genes coding for nicotianamine synthase, yellow stripe-like transporters, metal transporters, ABC transporters, and zinc-induced facilitator-like protein was noted. Expression of genes related to the Strategy II mode of Fe uptake was also predominant. Our transcriptomic data were in agreement with the GC-MS analysis that showed the enhanced accumulation of various metabolites such as fumarate, malonate, succinate, and xylofuranose, which could be contributing to Fe mobilization. Interestingly, Fe starvation leads to a significant temporal increase of glutathione S-transferase at both the transcriptional level and enzymatic activity level, which indicates the involvement of glutathione in response to Fe stress in wheat roots. Taken together, our result provides new insight into the wheat response to Fe starvation at the molecular level and lays the foundation to design new strategies for the improvement of Fe nutrition in crops.
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Affiliation(s)
- Gazaldeep Kaur
- National Agri-Food Biotechnology Institute (Department of Biotechnology), Mohali, Punjab, India
- Department of Biotechnology, Panjab University, Chandigarh, India
| | - Vishnu Shukla
- National Agri-Food Biotechnology Institute (Department of Biotechnology), Mohali, Punjab, India
- University Institute of Engineering and Technology, Panjab University, Chandigarh, India
| | - Anil Kumar
- National Agri-Food Biotechnology Institute (Department of Biotechnology), Mohali, Punjab, India
- Department of Biotechnology, Panjab University, Chandigarh, India
| | - Mandeep Kaur
- National Agri-Food Biotechnology Institute (Department of Biotechnology), Mohali, Punjab, India
- Department of Biotechnology, Panjab University, Chandigarh, India
| | - Parul Goel
- National Agri-Food Biotechnology Institute (Department of Biotechnology), Mohali, Punjab, India
| | - Palvinder Singh
- National Agri-Food Biotechnology Institute (Department of Biotechnology), Mohali, Punjab, India
| | - Anuj Shukla
- National Agri-Food Biotechnology Institute (Department of Biotechnology), Mohali, Punjab, India
| | - Varsha Meena
- National Agri-Food Biotechnology Institute (Department of Biotechnology), Mohali, Punjab, India
| | - Jaspreet Kaur
- University Institute of Engineering and Technology, Panjab University, Chandigarh, India
| | - Jagtar Singh
- Department of Biotechnology, Panjab University, Chandigarh, India
| | - Shrikant Mantri
- National Agri-Food Biotechnology Institute (Department of Biotechnology), Mohali, Punjab, India
| | - Hatem Rouached
- BPMP, Université de Montpellier, INRA, CNRS, Montpellier SupAgro, Montpellier, France
| | - Ajay Kumar Pandey
- National Agri-Food Biotechnology Institute (Department of Biotechnology), Mohali, Punjab, India
- Correspondence: or
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Pan L, Guo S, Chen X, Jiang X, Shen J, Diao X, Wang Z, Zhong D. Characterization of TPN171 metabolism in humans via ultra-performance liquid chromatography/quadrupole time-of-flight mass spectrometry. J Pharm Biomed Anal 2019; 172:302-310. [DOI: 10.1016/j.jpba.2019.05.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 04/09/2019] [Accepted: 05/01/2019] [Indexed: 11/17/2022]
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Olejnik M, Radko L, Jedziniak P. Identification of metabolites of anticancer candidate salinomycin using liquid chromatography coupled with quadrupole time-of-flight and hybrid triple quadrupole linear ion trap mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2018; 32:629-634. [PMID: 29441626 DOI: 10.1002/rcm.8082] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 01/08/2018] [Accepted: 02/02/2018] [Indexed: 06/08/2023]
Abstract
RATIONALE Salinomycin is an ionophore antibiotic with potential anticancer activity. The history of its use in veterinary medicine shows large differences in species susceptibility to its toxicity. At the same time, the results of research to date suggest a correlation between the extent and pathways of ionophore biotransformation and its toxicity. The biotransformation pattern of salinomycin has not been studied so far. METHODS Extracts from culture media of human hepatoma cells (HepG2) exposed to salinomycin were analysed with two mass spectrometry techniques. For the first one, micro-liquid chromatography coupled with a quadrupole time-of-flight (Q-TOF) mass spectrometer was used. In the second approach, high-performance liquid chromatography was coupled with a hybrid triple quadrupole linear ion trap. Both experiments were operated in positive electrospray ionization mode. To identify unknown salinomycin metabolites, information-dependent acquisition was applied. RESULTS Metabolites identified with tandem mass spectrometry included hydroxylated, demethylated and hydroxylated-demethylated derivatives, in total 14 compounds. Using high resolution, only eight isomers of hydroxysalinomycin were detected. The efficiency of biotransformation was low, and so was the abundance of the signals; only for two metabolites did the signal exceed 1% of the salinomycin signal. The analysis of fragmentation patterns narrowed the structure combinations but the actual modification site could not be specified. CONCLUSIONS Tandem mass spectrometry was more sensitive in the identification of salinomycin metabolites in comparison to the Q-TOF approach. Because of low efficiency of biotransformation of the applied model, the obtained fragmentation data are not sufficient to fully characterize the detected compounds. A study with more metabolically active primary hepatocytes is needed.
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Affiliation(s)
- Małgorzata Olejnik
- Department of Pharmacology and Toxicology, National Veterinary Research Institute, Al. Partyzantow 57, 24-100, Pulawy, Poland
| | - Lidia Radko
- Department of Pharmacology and Toxicology, National Veterinary Research Institute, Al. Partyzantow 57, 24-100, Pulawy, Poland
| | - Piotr Jedziniak
- Department of Pharmacology and Toxicology, National Veterinary Research Institute, Al. Partyzantow 57, 24-100, Pulawy, Poland
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Abstract
Ambient ionization MS has become very popular in analytical science and has now evolved as an effective analytical tool in metabolomics, biological tissue imaging, protein and small molecule drug analysis, where biological samples are probed in a rapid and direct fashion with minimal sample preparation at ambient conditions. However, certain inherent challenges continue to hinder the vibrant prospects of these methods for in situ analyses or to replace conventional methods in bioanalysis. This review provides an introduction to the field and its application in bioanalysis, with an emphasis on the most recent developments and applications. Furthermore, ongoing challenges or limitations related to quantitation, sensitivity, selectivity, instrumentation and mass range of these ambient methods will also be discussed.
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Gaudette F, Benito J, Steagall P, Beaudry F. Assessment of tandem mass spectrometry and high-resolution mass spectrometry for the analysis of bupivacaine in plasma. Biomed Chromatogr 2015; 29:1724-30. [PMID: 25963121 DOI: 10.1002/bmc.3485] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Revised: 03/23/2015] [Accepted: 03/31/2015] [Indexed: 11/10/2022]
Abstract
Triple quadrupole mass spectrometers coupled with high performance liquid chromatography are workhorses in quantitative bioanalyses. They provide substantial benefits including reproducibility, sensitivity and selectivity for trace analysis. Selected reaction monitoring allows targeted assay development but datasets generated contain very limited information. Data mining and analysis of nontargeted high-resolution mass spectrometry profiles of biological samples offer the opportunity to perform more exhaustive assessments, including quantitative and qualitative analysis. The objectives of this study were to test method precision and accuracy, to statistically compare bupivacaine drug concentration in real study samples and to verify if high-resolution and accurate mass data collected in scan mode can actually permit retrospective data analysis, more specifically, extract metabolite related information. The precision and accuracy data presented using both instruments provided equivalent results. Overall, the accuracy ranged from 106.2 to 113.2% and the precision observed was from 1.0 to 3.7%. Statistical comparisons using a linear regression between both methods revealed a coefficient of determination (R(2)) of 0.9996 and a slope of 1.02, demonstrating a very strong correlation between the two methods. Individual sample comparison showed differences from -4.5 to 1.6%, well within the accepted analytical error. Moreover, post-acquisition extracted ion chromatograms at m/z 233.1648 ± 5 ppm (M - 56) and m/z 305.2224 ± 5 ppm (M + 16) revealed the presence of desbutyl-bupivacaine and three distinct hydroxylated bupivacaine metabolites. Post-acquisition analysis allowed us to produce semi-quantitative evaluations of the concentration-time profiles for bupicavaine metabolites.
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Affiliation(s)
- Fleur Gaudette
- Centre de Recherche du Centre Hospitalier Universitaire de l'Université de Montréal, Montréal, Québec, Canada (CRCHUM)
| | - Javier Benito
- Département de Sciences Cliniques, Faculté de Médecine Vétérinaire, Université de Montréal, Saint-Hyacinthe, Québec, Canada
| | - Paulo Steagall
- Groupe de Recherche en Pharmacologie Animal du Québec, Département de Biomédecine Vétérinaire, Faculté de Médecine Vétérinaire, Université de Montréal, Saint-Hyacinthe, Québec, Canada
| | - Francis Beaudry
- Centre de Recherche du Centre Hospitalier Universitaire de l'Université de Montréal, Montréal, Québec, Canada (CRCHUM).,Groupe de Recherche en Pharmacologie Animal du Québec, Département de Biomédecine Vétérinaire, Faculté de Médecine Vétérinaire, Université de Montréal, Saint-Hyacinthe, Québec, Canada
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Zhu X, Chen Y, Subramanian R. Comparison of Information-Dependent Acquisition, SWATH, and MSAll Techniques in Metabolite Identification Study Employing Ultrahigh-Performance Liquid Chromatography–Quadrupole Time-of-Flight Mass Spectrometry. Anal Chem 2014; 86:1202-9. [DOI: 10.1021/ac403385y] [Citation(s) in RCA: 156] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Xiaochun Zhu
- Pharmacokinetics and Drug Metabolism,
Amgen Inc., One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Yuping Chen
- Pharmacokinetics and Drug Metabolism,
Amgen Inc., One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Raju Subramanian
- Pharmacokinetics and Drug Metabolism,
Amgen Inc., One Amgen Center Drive, Thousand Oaks, California 91320, United States
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