1
|
Gao M, Sun J, Xiao Q, Zhai Y, Tian Y, Zhang Z, Xu F, Zhang P. Sensitive quantification of mevalonate pathway intermediates and prediction of relative novel analogs by chemical derivatization-based LC-MS/MS. J Chromatogr A 2024; 1731:465163. [PMID: 39029328 DOI: 10.1016/j.chroma.2024.465163] [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: 04/30/2024] [Revised: 07/02/2024] [Accepted: 07/12/2024] [Indexed: 07/21/2024]
Abstract
The mevalonate (MVA) pathway plays a crucial role in the occurrence and progression of various diseases, such as osteoporosis, breast cancer, and lung cancer, etc. However, determining all the MVA pathway intermediates is still challenging due to their high polarity, low concentration, chelation effect with metal compartments, and poor mass spectrometric response. In this study, we established a liquid chromatography-tandem mass spectrometry (LC-MS/MS) method coupled with N2, N2, N4, N4-tetramethyl-6-(4-(piperazin-1-ylsulfonyl) phenyl)-1,3,5-triazine-2,4-diamine (Tmt-PP) labeling for the simultaneous analysis of all MVA intermediates in biospecimens. Chemical derivatization significantly improved the chromatographic retention, peak shape, and detection sensitivity of the analytes. Moreover, we employed a method named mass spectrum calculation to achieve the absolute quantification of the isomers, i.e., isopentenyl pyrophosphate (IPP) and dimethylallyl pyrophosphate (DMAPP). The established method was fully qualified and applied to explore the difference of these metabolites in cisplatin-resistant non-small cell lung cancer (NSCLC) cells. Additionally, several MVA intermediate analogs, including isopentenyl monophosphate or dimethylallyl monophosphate (IMP/DMAMP), geranyl monophosphate (GMP), 5-triphosphomevalonate (MTP), and isopentenyl triphosphate or dimethylallyl triphosphate (ITP/DMATP), were identified for the first time using a knowledge-driven prediction strategy. We further explored the tissue distribution of these novel metabolites. Overall, this work developed a sensitive quantification method for all MVA intermediates, which will enhance our understanding of the role of this pathway in various health and disease conditions. The novel metabolites we discovered warrant further investigations into their biosynthesis and biological functions.
Collapse
Affiliation(s)
- Meiyu Gao
- Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education), State Key Laboratory of Natural Medicine, China Pharmaceutical University, Nanjing 210009, PR China
| | - Jiarui Sun
- Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education), State Key Laboratory of Natural Medicine, China Pharmaceutical University, Nanjing 210009, PR China
| | - Qinwen Xiao
- Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education), State Key Laboratory of Natural Medicine, China Pharmaceutical University, Nanjing 210009, PR China
| | - Yuanyuan Zhai
- Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education), State Key Laboratory of Natural Medicine, China Pharmaceutical University, Nanjing 210009, PR China
| | - Yuan Tian
- Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education), State Key Laboratory of Natural Medicine, China Pharmaceutical University, Nanjing 210009, PR China
| | - Zunjian Zhang
- Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education), State Key Laboratory of Natural Medicine, China Pharmaceutical University, Nanjing 210009, PR China
| | - Fengguo Xu
- Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education), State Key Laboratory of Natural Medicine, China Pharmaceutical University, Nanjing 210009, PR China; School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, PR China.
| | - Pei Zhang
- Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education), State Key Laboratory of Natural Medicine, China Pharmaceutical University, Nanjing 210009, PR China.
| |
Collapse
|
2
|
Deng L, Kumar J, Rose R, McIntyre W, Fabris D. Analyzing RNA posttranscriptional modifications to decipher the epitranscriptomic code. MASS SPECTROMETRY REVIEWS 2024; 43:5-38. [PMID: 36052666 DOI: 10.1002/mas.21798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 05/23/2022] [Accepted: 05/27/2022] [Indexed: 06/15/2023]
Abstract
The discovery of RNA silencing has revealed that non-protein-coding sequences (ncRNAs) can cover essential roles in regulatory networks and their malfunction may result in severe consequences on human health. These findings have prompted a general reassessment of the significance of RNA as a key player in cellular processes. This reassessment, however, will not be complete without a greater understanding of the distribution and function of the over 170 variants of the canonical ribonucleotides, which contribute to the breathtaking structural diversity of natural RNA. This review surveys the analytical approaches employed for the identification, characterization, and detection of RNA posttranscriptional modifications (rPTMs). The merits of analyzing individual units after exhaustive hydrolysis of the initial biopolymer are outlined together with those of identifying their position in the sequence of parent strands. Approaches based on next generation sequencing and mass spectrometry technologies are covered in depth to provide a comprehensive view of their respective merits. Deciphering the epitranscriptomic code will require not only mapping the location of rPTMs in the various classes of RNAs, but also assessing the variations of expression levels under different experimental conditions. The fact that no individual platform is currently capable of meeting all such demands implies that it will be essential to capitalize on complementary approaches to obtain the desired information. For this reason, the review strived to cover the broadest possible range of techniques to provide readers with the fundamental elements necessary to make informed choices and design the most effective possible strategy to accomplish the task at hand.
Collapse
Affiliation(s)
- L Deng
- Department of Chemistry, University of Connecticut, Storrs, Connecticut, USA
| | - J Kumar
- Department of Chemistry, University of Connecticut, Storrs, Connecticut, USA
| | - R Rose
- Department of Advanced Research Technologies, New York University Langone Health Center, New York, USA
| | - W McIntyre
- Department of Chemistry, University of Connecticut, Storrs, Connecticut, USA
| | - Daniele Fabris
- Department of Chemistry, University of Connecticut, Storrs, Connecticut, USA
| |
Collapse
|
3
|
Wang P, Cheng T, Pan J. Nucleoside Analogs: A Review of Its Source and Separation Processes. Molecules 2023; 28:7043. [PMID: 37894522 PMCID: PMC10608831 DOI: 10.3390/molecules28207043] [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: 09/20/2023] [Revised: 10/09/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023] Open
Abstract
Nucleoside analogs play a crucial role in the production of high-value antitumor and antimicrobial drugs. Currently, nucleoside analogs are mainly obtained through nucleic acid degradation, chemical synthesis, and biotransformation. However, these methods face several challenges, such as low concentration of the main product, the presence of complex matrices, and the generation of numerous by-products that significantly limit the development of new drugs and their pharmacological studies. Therefore, this work aims to summarize the universal separation methods of nucleoside analogs, including crystallization, high-performance liquid chromatography (HPLC), column chromatography, solvent extraction, and adsorption. The review also explores the application of molecular imprinting techniques (MITs) in enhancing the identification of the separation process. It compares existing studies reported on adsorbents of molecularly imprinted polymers (MIPs) for the separation of nucleoside analogs. The development of new methods for selective separation and purification of nucleosides is vital to improving the efficiency and quality of nucleoside production. It enables us to obtain nucleoside products that are essential for the development of antitumor and antiviral drugs. Additionally, these methods possess immense potential in the prevention and control of serious diseases, offering significant economic, social, and scientific benefits to the fields of environment, biomedical research, and clinical therapeutics.
Collapse
Affiliation(s)
| | | | - Jianming Pan
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China; (P.W.); (T.C.)
| |
Collapse
|
4
|
Zhang HX, Yu D, Sun JF, Zeng L, Wang CY, Bai LP, Zhu GY, Jiang ZH, Zhang W. An integrated approach to evaluate acetamiprid-induced oxidative damage to tRNA in human cells based on oxidized nucleotide and tRNA profiling. ENVIRONMENT INTERNATIONAL 2023; 178:108038. [PMID: 37343327 DOI: 10.1016/j.envint.2023.108038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 06/03/2023] [Accepted: 06/12/2023] [Indexed: 06/23/2023]
Abstract
Acetamiprid is poisonous to mammals due to severe acetamiprid-induced oxidative stress that could cause mitochondrial dysfunctions, lipid and protein oxidation, inflammation, apoptosis, and DNA damage. Evidence has accumulated for the role of oxidative stress in changing structures and functions of transfer RNAs (tRNAs) by inducing tRNA cleavage, reprogramming tRNA modifications and impairing aminoacyl-tRNA synthetase editing sites. However, the impact of acetamiprid-induced oxidative stress on tRNA is still unknown. Here, we investigated the effects of acetamiprid on cell viability, reactive oxygen species (ROS) levels, DNA damage, cellular oxidized nucleotide concentrations, and oxidative damage to tRNA in HepG2 cells and LO2 cells. Acetamiprid can cause the significant increment of ROS and DNA oxidative damage. In this study, an integrated approach was established to simultaneously study the network of oxidized nucleotides and explore the tRNA oxidative damage after acetamiprid exposure. A simple and high-throughput liquid chromatography with tandem mass spectrometry (LC-MS/MS) method coupled with (trimethylsilyl)diazomethane (TMSD) derivatization was successfully developed to quantify 12 cellular oxidized nucleotides that cannot be detected using traditional detection methods because of the huge interferences from naturally abundant nucleotides. Meanwhile, the accumulation rate and the locating sites of 8-oxo-2, 7-dihydro-guanine (8-oxo-G) in tRNA were inspected using the established N-(tert-Butyldimethylsilyl)-N-methyl-trifluoroacetamide (MTBSTFA) labeling-based tRNA profiling method. After acetamiprid treatment, the increment of oxidized nucleoside triphosphates is smaller than that of their corresponding mono- and diphosphates, as well as the dephosphorylated nucleosides, on account of the existence of sanitization enzymes. Several tRNA fragments, CUC[m1A]Gp, CACGp, [Cm]C[m2G]p, and DDGp, are significantly downregulated in acetamiprid-treated HepG2 cells, while only [Cm]C[m2G]p in acetamiprid-treated LO2 cells. According to the profiling results, the significantly changed fragment CUC[m1A]Gp might be caused by the oxidation of guanine (G) to form 8-oxo-G at position 15 in human tRNAphe([Gm]AA), providing more information about the effect of oxidized nucleobases on tRNA's functions.
Collapse
Affiliation(s)
- Hui-Xia Zhang
- State Key Laboratory of Quality Research in Chinese Medicine, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau 999078, People's Republic of China
| | - Dian Yu
- State Key Laboratory of Quality Research in Chinese Medicine, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau 999078, People's Republic of China
| | - Jian-Feng Sun
- State Key Laboratory of Quality Research in Chinese Medicine, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau 999078, People's Republic of China
| | - Ling Zeng
- State Key Laboratory of Quality Research in Chinese Medicine, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau 999078, People's Republic of China
| | - Cai-Yun Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau 999078, People's Republic of China
| | - Li-Ping Bai
- State Key Laboratory of Quality Research in Chinese Medicine, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau 999078, People's Republic of China
| | - Guo-Yuan Zhu
- State Key Laboratory of Quality Research in Chinese Medicine, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau 999078, People's Republic of China
| | - Zhi-Hong Jiang
- State Key Laboratory of Quality Research in Chinese Medicine, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau 999078, People's Republic of China.
| | - Wei Zhang
- State Key Laboratory of Quality Research in Chinese Medicine, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau 999078, People's Republic of China.
| |
Collapse
|
5
|
Zhang HX, Qin JF, Sun JF, Pan Y, Yan TM, Wang CY, Bai LP, Zhu GY, Jiang ZH, Zhang W. Selective Chemical Labeling Strategy for Oligonucleotides Determination: A First Application to Full-Range Profiling of Transfer RNA Modifications. Anal Chem 2023; 95:686-694. [PMID: 36601728 DOI: 10.1021/acs.analchem.2c02302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
To date, the extremely high polarity and poor signal intensity of macromolecular nucleic acids are greatly impeding the progress of mass spectrometry technology in the quality control of nucleic acid drugs and the characterization of DNA oxidation and RNA modifications. We recently described a general N-(tert-butyldimethylsilyl)-N-methyl-trifluoroacetamide (MTBSTFA) labeling method for oligonucleotide determination and applied it to the full-range profiling of tRNA in vitro and in vivo studies for the first time. The primary advantages of this method include strong retention, no observable byproducts, predictable and easily interpreted MS2 data, and the circumvention of instrument harmful reagents that were necessary in previous methods. Selective labeling of N-(tert-butyldimethylsilyl)-N-methyl-trifluoroacetamide to the terminal phosphate groups of oligonucleotides endows it broadly applicable for DNA/RNA profiling. Moreover, the improvement of sequence coverage was achieved in yeast tRNAphe(GAA) analysis owing to this method's good detection capability of 1-12 nucleotides in length. We also extended this strategy to determine the abundance of modified bases and discover new modifications via digesting RNA into single-nucleotide products, promoting the comprehensive mapping of RNA. The easy availability of derivatization reagent and the simple, rapid one-step reaction render it easy to operate for researchers. When applied in characterizing tRNAs in HepG2 cells and rats with nonalcoholic fatty liver disease, a fragment of U[m1G][m2G], specific for tRNAAsn(QUU) in cells, was significantly upregulated, indicating a possible clue to nonalcoholic fatty liver disease pathogenesis.
Collapse
Affiliation(s)
- Hui-Xia Zhang
- State Key Laboratory of Quality Research in Chinese Medicines, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau 999078, People's Republic of China
| | - Jian-Feng Qin
- State Key Laboratory of Quality Research in Chinese Medicines, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau 999078, People's Republic of China
| | - Jian-Feng Sun
- State Key Laboratory of Quality Research in Chinese Medicines, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau 999078, People's Republic of China
| | - Yu Pan
- State Key Laboratory of Quality Research in Chinese Medicines, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau 999078, People's Republic of China
| | - Tong-Meng Yan
- State Key Laboratory of Quality Research in Chinese Medicines, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau 999078, People's Republic of China
| | - Cai-Yun Wang
- State Key Laboratory of Quality Research in Chinese Medicines, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau 999078, People's Republic of China
| | - Li-Ping Bai
- State Key Laboratory of Quality Research in Chinese Medicines, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau 999078, People's Republic of China
| | - Guo-Yuan Zhu
- State Key Laboratory of Quality Research in Chinese Medicines, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau 999078, People's Republic of China
| | - Zhi-Hong Jiang
- State Key Laboratory of Quality Research in Chinese Medicines, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau 999078, People's Republic of China
| | - Wei Zhang
- State Key Laboratory of Quality Research in Chinese Medicines, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau 999078, People's Republic of China
| |
Collapse
|
6
|
Li S, Zhang Z, Liu FL, Yuan BF, Liu TG, Feng YQ. Comprehensive Profiling of Phosphomonoester Metabolites in Saccharomyces cerevisiae by the Chemical Isotope Labeling-LC-MS Method. J Proteome Res 2023; 22:114-122. [PMID: 36484485 DOI: 10.1021/acs.jproteome.2c00507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Phosphomonoesters are important biosynthetic and energy metabolism intermediates in microorganisms. A comprehensive analysis of phosphomonoester metabolites is of great significance for the understanding of their metabolic phosphorylation process and inner mechanism. In this study, we established a pair of isotope reagent d0/d5-2-diazomethyl-N-methyl-phenyl benzamide-labeling-based LC-MS method for the comprehensive analysis of phosphomonoester metabolites. By this method, the labeled phosphomonoester metabolites specifically produced characteristic isotope paired peaks with an m/z difference of 5.0314 in the MS1 spectra and a pair of diagnostic ions (m/z 320.0693/325.1077) in the MS2 spectra. Based on this, a diagnostic ion-based strategy was established for the rapid screening, identification, and relative quantification of phosphomonoester metabolites. Using this strategy, 42 phosphomonoester metabolites were highly accurately identified fromSaccharomyces cerevisiae (S. cerevisiae). Notably, two phosphomonoesters were first detected fromS. cerevisiae. The relative quantification results indicated that the contents of nine phosphomonoester metabolites including two intermediates (Ru5P and S7P) in the pentose phosphate pathway (PPP) were significantly different between lycopene-producible and wild-type S. cerevisiae. A further enzyme assay indicated that the activity of the PPP was closely related to the production of lycopene. Our findings provide new perspectives for the related mechanism study and valuable references for making informed microbial engineering decisions.
Collapse
Affiliation(s)
- Sha Li
- Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Zheng Zhang
- Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Fei-Long Liu
- Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Bi-Feng Yuan
- School of Public Health, Wuhan University, Wuhan 430071, China
| | - Tian-Gang Liu
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education and School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China
| | - Yu-Qi Feng
- Department of Chemistry, Wuhan University, Wuhan 430072, China.,School of Public Health, Wuhan University, Wuhan 430071, China
| |
Collapse
|
7
|
Chemical derivatization as a novel strategy for selective and sensitive determination of intracellular di-and triphosphate anabolites in peripheral blood mononuclear cells. J Pharm Biomed Anal 2023; 223:115124. [DOI: 10.1016/j.jpba.2022.115124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 10/19/2022] [Accepted: 10/24/2022] [Indexed: 11/06/2022]
|
8
|
Synthesis of C8F13-SiO2 stationary phase for chromatographic separation of highly polar compounds. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
9
|
Alhalabi O, Chen J, Zhang Y, Lu Y, Wang Q, Ramachandran S, Tidwell RS, Han G, Yan X, Meng J, Wang R, Hoang AG, Wang WL, Song J, Lopez L, Andreev-Drakhlin A, Siefker-Radtke A, Zhang X, Benedict WF, Shah AY, Wang J, Msaouel P, Zhang M, Guo CC, Czerniak B, Behrens C, Soto L, Papadimitrakopoulou V, Lewis J, Rinsurongkawong W, Rinsurongkawong V, Lee J, Roth J, Swisher S, Wistuba I, Heymach J, Wang J, Campbell MT, Efstathiou E, Titus M, Logothetis CJ, Ho TH, Zhang J, Wang L, Gao J. MTAP deficiency creates an exploitable target for antifolate therapy in 9p21-loss cancers. Nat Commun 2022; 13:1797. [PMID: 35379845 PMCID: PMC8980015 DOI: 10.1038/s41467-022-29397-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 03/10/2022] [Indexed: 12/14/2022] Open
Abstract
Methylthioadenosine phosphorylase, an essential enzyme for the adenine salvage pathway, is often deficient (MTAPdef) in tumors with 9p21 loss and hypothetically renders tumors susceptible to synthetic lethality by antifolates targeting de novo purine synthesis. Here we report our single arm phase II trial (NCT02693717) that assesses pemetrexed in MTAPdef urothelial carcinoma (UC) with the primary endpoint of overall response rate (ORR). Three of 7 enrolled MTAPdef patients show response to pemetrexed (ORR 43%). Furthermore, a historic cohort shows 4 of 4 MTAPdef patients respond to pemetrexed as compared to 1 of 10 MTAP-proficient patients. In vitro and in vivo preclinical data using UC cell lines demonstrate increased sensitivity to pemetrexed by inducing DNA damage, and distorting nucleotide pools. In addition, MTAP-knockdown increases sensitivity to pemetrexed. Furthermore, in a lung adenocarcinoma retrospective cohort (N = 72) from the published BATTLE2 clinical trial (NCT01248247), MTAPdef associates with an improved response rate to pemetrexed. Our data demonstrate a synthetic lethal interaction between MTAPdef and de novo purine inhibition, which represents a promising therapeutic strategy for larger prospective trials.
Collapse
Affiliation(s)
- Omar Alhalabi
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Jianfeng Chen
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Yuxue Zhang
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Yang Lu
- Department of Nuclear Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Qi Wang
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Sumankalai Ramachandran
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Rebecca Slack Tidwell
- Department of Biostatistics,, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Guangchun Han
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Xinmiao Yan
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Jieru Meng
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Ruiping Wang
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Anh G Hoang
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Wei-Lien Wang
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Jian Song
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Lidia Lopez
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Alex Andreev-Drakhlin
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Arlene Siefker-Radtke
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Xinqiao Zhang
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - William F Benedict
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Amishi Y Shah
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Jennifer Wang
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Pavlos Msaouel
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Miao Zhang
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Charles C Guo
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Bogdan Czerniak
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Carmen Behrens
- Department of Thoracic, Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Luisa Soto
- Department of Translational molecular pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Vassiliki Papadimitrakopoulou
- Department of Thoracic, Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Jeff Lewis
- Department of Biostatistics,, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Waree Rinsurongkawong
- Department of Biostatistics,, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Vadeerat Rinsurongkawong
- Department of Biostatistics,, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Jack Lee
- Department of Biostatistics,, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Jack Roth
- Department of Thoracic and Cardiovascular surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Stephen Swisher
- Department of Thoracic and Cardiovascular surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Ignacio Wistuba
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - John Heymach
- Department of Thoracic, Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Jing Wang
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Matthew T Campbell
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Eleni Efstathiou
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Mark Titus
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Christopher J Logothetis
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Thai H Ho
- Division of Medical Oncology, Mayo Clinic, Phoenix, AZ, USA
| | - Jianjun Zhang
- Department of Thoracic, Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Linghua Wang
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA.
- The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences (GSBS), Houston, TX, USA.
| | - Jianjun Gao
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA.
| |
Collapse
|
10
|
Williams JS, Kunkel TA. Ribonucleotide Incorporation by Eukaryotic B-family Replicases and Its Implications for Genome Stability. Annu Rev Biochem 2022; 91:133-155. [PMID: 35287470 DOI: 10.1146/annurev-biochem-032620-110354] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Our current view of how DNA-based genomes are efficiently and accurately replicated continues to evolve as new details emerge on the presence of ribonucleotides in DNA. Ribonucleotides are incorporated during eukaryotic DNA replication at rates that make them the most common noncanonical nucleotide placed into the nuclear genome, they are efficiently repaired, and their removal impacts genome integrity. This review focuses on three aspects of this subject: the incorporation of ribonucleotides into the eukaryotic nuclear genome during replication by B-family DNA replicases, how these ribonucleotides are removed, and the consequences of their presence or removal for genome stability and disease. Expected final online publication date for the Annual Review of Biochemistry, Volume 91 is June 2022. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.
Collapse
Affiliation(s)
- Jessica S Williams
- Genome Integrity and Structural Biology Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina, USA;
| | - Thomas A Kunkel
- Genome Integrity and Structural Biology Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina, USA;
| |
Collapse
|
11
|
Yu S, Cai C, Wang Y, Sheng C, Jiang K. Quantification of phytic acid in baby foods by derivatization with (trimethylsilyl)diazomethane and liquid chromatography-mass spectrometry analysis. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2021; 35:e9194. [PMID: 34498325 DOI: 10.1002/rcm.9194] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 08/30/2021] [Accepted: 09/01/2021] [Indexed: 06/13/2023]
Abstract
RATIONALE Phytic acid (PA) is both a naturally occurring nutrient and a widely used food additive for conferring antioxidant properties to food. PA can be found in baby foods and it is essential to monitor PA content due to its anti-nutritional properties when present in excess. Current methods for determining PA content are unsatisfactory because interference from inositol phosphates and inorganic phosphates complicates PA quantification. METHODS Baby foods were extracted using aqueous HCl, and the extractant was subjected to derivatization with (trimethylsilyl)diazomethane after de-metalation using a cation exchange resin. The PA derivative was quantified using liquid chromatography-mass spectrometry (LC/MS/MS) with a multi-response monitoring mode (m/z 829 to 451). RESULTS The linearity of the developed analytical method ranged from 10 to 1000 ng/mL for PA with R2 > 0.999. Reasonable reproducibility was obtained with an intraday relative standard deviation (RSD; N = 5) of 4.5% and an interday RSD (N = 5) of 5.7% at a concentration of 10 ng/mL. The developed method was successfully applied to determine PA content in various baby foods, with PA recovery between 90.6% and 119.8%. CONCLUSIONS A robust and sensitive method for the determination of PA in baby foods has been developed by methyl esterification with (trimethylsilyl)diazomethane and using LC/MS/MS analysis. The established method showed good anti-interference and precision, and it has been applied for the determination of PA in various baby foods.
Collapse
Affiliation(s)
- Saisai Yu
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, China
| | - Chenggang Cai
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou, China
| | - Yan Wang
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, China
| | - Chunqi Sheng
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, China
| | - Kezhi Jiang
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, China
| |
Collapse
|
12
|
Yu S, Cai C, Zhang X, Sheng C, Jiang K. Method for the accurate determination of phytic acid in beverages by liquid chromatography-mass spectrometry after methylation with (trimethylsilyl) diazomethane. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.112212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
13
|
Li Y, Luo W, Zhang H, Wang C, Yu C, Jiang Z, Zhang W. Antitumor Mechanism of Hydroxycamptothecin via the Metabolic Perturbation of Ribonucleotide and Deoxyribonucleotide in Human Colorectal Carcinoma Cells. Molecules 2021; 26:4902. [PMID: 34443490 PMCID: PMC8398164 DOI: 10.3390/molecules26164902] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 08/06/2021] [Accepted: 08/09/2021] [Indexed: 12/12/2022] Open
Abstract
Hydroxycamptothecin (SN38) is a natural plant extract isolated from Camptotheca acuminate. It has a broad spectrum of anticancer activity through inhibition of DNA topoisomerase I, which could affect DNA synthesis and lead to DNA damage. Thus, the action of SN38 against cancers could inevitably affect endogenous levels of ribonucleotide (RNs) and deoxyribonucleotide (dRNs) that play critical roles in many biological processes, especially in DNA synthesis and repair. However, the exact impact of SN38 on RNs and dRNs is yet to be fully elucidated. In this study, we evaluated the anticancer effect and associated mechanism of SN38 in human colorectal carcinoma HCT 116 cells. As a result, SN38 could decrease the cell viability and induce DNA damage in a concentration-dependent manner. Furthermore, cell cycle arrest and intracellular nucleotide metabolism were perturbed due to DNA damage response, of which ATP, UTP, dATP, and TTP may be the critical metabolites during the whole process. Combined with the expression of deoxyribonucleoside triphosphates synthesis enzymes, our results demonstrated that the alteration and imbalance of deoxyribonucleoside triphosphates caused by SN38 was mainly due to the de novo nucleotide synthesis at 24 h, and subsequently the salvage pathways at 48 h. The unique features of SN38 suggested that it might be recommended as an effective supplementary drug with an anticancer effect.
Collapse
Affiliation(s)
- Yan Li
- State Key Laboratory of Quality Research in Chinese Medicines, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Taipa, Macau 999078, China; (Y.L.); (W.L.); (H.Z.); (C.W.)
| | - Wendi Luo
- State Key Laboratory of Quality Research in Chinese Medicines, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Taipa, Macau 999078, China; (Y.L.); (W.L.); (H.Z.); (C.W.)
| | - Huixia Zhang
- State Key Laboratory of Quality Research in Chinese Medicines, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Taipa, Macau 999078, China; (Y.L.); (W.L.); (H.Z.); (C.W.)
| | - Caiyun Wang
- State Key Laboratory of Quality Research in Chinese Medicines, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Taipa, Macau 999078, China; (Y.L.); (W.L.); (H.Z.); (C.W.)
| | - Caiyuan Yu
- Faculty of Agroforestry and Medicine, The Open University of China, Beijing 100039, China;
| | - Zhihong Jiang
- State Key Laboratory of Quality Research in Chinese Medicines, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Taipa, Macau 999078, China; (Y.L.); (W.L.); (H.Z.); (C.W.)
| | - Wei Zhang
- State Key Laboratory of Quality Research in Chinese Medicines, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Taipa, Macau 999078, China; (Y.L.); (W.L.); (H.Z.); (C.W.)
| |
Collapse
|
14
|
Yu S, Chen Z, Wang Y, Sheng C, Zhang H, Jiang K. Determination of phytic acid in wheat products by complete methyl esterification and liquid chromatography-mass spectrometry analysis. J Sep Sci 2021; 44:2856-2861. [PMID: 33973713 DOI: 10.1002/jssc.202100218] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 05/06/2021] [Accepted: 05/09/2021] [Indexed: 11/06/2022]
Abstract
Phytic acid, the principal storage form of phosphorus in wheat, plays both beneficial and antinutrient functions for human being, and its analytical method still needs further development. In this work, we have developed a new method for the determination of phytic acid in wheat products based on derivatization with (trimethylsilyl)diazomethane in combination with liquid chromatography-mass spectrometry analysis. Methyl esterification greatly decreased the polarity and the acidity of phytic acid, and thus the corresponding derivative can be easily analyzed by liquid chromatography-mass spectrometry under common conditions. Furthermore, treatment with cation exchange resin removed the polyvalent metal ions in the solutions, and thus derivatization of phytic acid can be achieved efficiently and completely. The standard curve for phytic acid has been well established in the linear range of 0.5-100 ng/mL with squared correlation coefficient more than 0.999 and the quantification limit of 0.25 ng/mL. The phytic acid content varies greatly in different wheat products, ranging from 153.5 to 17299.0 μg/g.
Collapse
Affiliation(s)
- Saisai Yu
- Key Laboratory of Organosilicon Chemistry and Material Technology, Hangzhou Normal University, Hangzhou, P. R. China
| | - Zhiwei Chen
- Key Laboratory of Organosilicon Chemistry and Material Technology, Hangzhou Normal University, Hangzhou, P. R. China
| | - Yan Wang
- Key Laboratory of Organosilicon Chemistry and Material Technology, Hangzhou Normal University, Hangzhou, P. R. China
| | - Chunqi Sheng
- Key Laboratory of Organosilicon Chemistry and Material Technology, Hangzhou Normal University, Hangzhou, P. R. China
| | - Huarong Zhang
- Key Laboratory of Organosilicon Chemistry and Material Technology, Hangzhou Normal University, Hangzhou, P. R. China
| | - Kezhi Jiang
- Key Laboratory of Organosilicon Chemistry and Material Technology, Hangzhou Normal University, Hangzhou, P. R. China
| |
Collapse
|
15
|
Li Y, Zhang HX, Luo WD, Lam CWK, Wang CY, Bai LP, Wong VKW, Zhang W, Jiang ZH. Profiling Ribonucleotide and Deoxyribonucleotide Pools Perturbed by Remdesivir in Human Bronchial Epithelial Cells. Front Pharmacol 2021; 12:647280. [PMID: 33995062 PMCID: PMC8120990 DOI: 10.3389/fphar.2021.647280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 03/23/2021] [Indexed: 11/13/2022] Open
Abstract
Remdesivir (RDV) has generated much anticipation for its moderate effect in treating severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. However, the unsatisfactory survival rates of hospitalized patients limit its application to the treatment of coronavirus disease 2019 (COVID-19). Therefore, improvement of antiviral efficacy of RDV is urgently needed. As a typical nucleotide analog, the activation of RDV to bioactive triphosphate will affect the biosynthesis of endogenous ribonucleotides (RNs) and deoxyribonucleotides (dRNs), which are essential to RNA and DNA replication in host cells. The imbalance of RN pools will inhibit virus replication as well. In order to investigate the effects of RDV on cellular nucleotide pools and on RNA transcription and DNA replication, cellular RNs and dRNs concentrations were measured by the liquid chromatography-mass spectrometry method, and the synthesis of RNA and DNA was monitored using click chemistry. The results showed that the IC50 values for BEAS-2B cells at exposure durations of 48 and 72 h were 25.3 ± 2.6 and 9.6 ± 0.7 μM, respectively. Ten (10) μM RDV caused BEAS-2B arrest at S-phase and significant suppression of RNA and DNA synthesis after treatment for 24 h. In addition, a general increase in the abundance of nucleotides and an increase of specific nucleotides more than 2 folds were observed. However, the variation of pyrimidine ribonucleotides was relatively slight or even absent, resulting in an obvious imbalance between purine and pyrimidine ribonucleotides. Interestingly, the very marked disequilibrium between cytidine triphosphate (CTP) and cytidine monophosphate might result from the inhibition of CTP synthase. Due to nucleotides which are also precursors for the synthesis of viral nucleic acids, the perturbation of nucleotide pools would block viral RNA replication. Considering the metabolic vulnerability of endogenous nucleotides, exacerbating the imbalance of nucleotide pools imparts great promise to enhance the efficacy of RDV, which possibly has special implications for treatment of COVID-19.
Collapse
Affiliation(s)
- Yan Li
- State Key Laboratory of Quality Research in Chinese Medicines, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease (Macau University of Science and Technology), Taipa, Macau, China
| | - Hui-Xia Zhang
- State Key Laboratory of Quality Research in Chinese Medicines, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease (Macau University of Science and Technology), Taipa, Macau, China
| | - Wen-Di Luo
- State Key Laboratory of Quality Research in Chinese Medicines, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease (Macau University of Science and Technology), Taipa, Macau, China
| | - Christopher Wai Kei Lam
- Faculty of Medicine and State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Taipa, Macau, China
| | - Cai-Yun Wang
- State Key Laboratory of Quality Research in Chinese Medicines, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease (Macau University of Science and Technology), Taipa, Macau, China
| | - Li-Ping Bai
- State Key Laboratory of Quality Research in Chinese Medicines, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease (Macau University of Science and Technology), Taipa, Macau, China
| | - Vincent Kam Wai Wong
- State Key Laboratory of Quality Research in Chinese Medicines, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease (Macau University of Science and Technology), Taipa, Macau, China
| | - Wei Zhang
- State Key Laboratory of Quality Research in Chinese Medicines, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease (Macau University of Science and Technology), Taipa, Macau, China
| | - Zhi-Hong Jiang
- State Key Laboratory of Quality Research in Chinese Medicines, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease (Macau University of Science and Technology), Taipa, Macau, China
| |
Collapse
|
16
|
Liu FL, Ye TT, Ding JH, Yin XM, Yang XK, Huang WH, Yuan BF, Feng YQ. Chemical Tagging Assisted Mass Spectrometry Analysis Enables Sensitive Determination of Phosphorylated Compounds in a Single Cell. Anal Chem 2021; 93:6848-6856. [PMID: 33882236 DOI: 10.1021/acs.analchem.1c00915] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Polar phosphorylated metabolites are involved in a variety of biological processes and play vital roles in energetic metabolism, cofactor regeneration, and nucleic acid synthesis. However, it is often challenging to interrogate polar phosphorylated metabolites and compounds from biological samples. Liquid chromatography-mass spectrometry (LC/MS) now plays a central role in metabolomic studies. However, LC/MS-based approaches have been hampered by the issues of the low ionization efficiencies, low in vivo concentrations, and less chemical stability of polar phosphorylated metabolites. In this work, we synthesized paired reagents of light and heavy isotopomers, 2-(diazomethyl)phenyl)(9-methyl-1,3,4,9-tetrahydro-2H-pyrido[3,4-b]indol-2-yl)methanone (DMPI) and d3-(2-(diazomethyl)phenyl)(9-methyl-1,3,4,9-tetrahydro-2H-pyrido[3,4-b]indol-2-yl)methanone (d3-DMPI). The paired reagents of DMPI and d3-DMPI carry diazo groups that can efficiently and selectively react with the phosphate group on polar phosphorylated metabolites under mild conditions. As a proof of concept, we found that the transfer of the indole heterocycle group from DMPI/d3-DMPI to ribonucleotides led to the significant increase of ionization efficiencies of ribonucleotides during LC/MS analysis. The detection sensitivities of these ribonucleotides increased by 25-1137-fold upon DMPI tagging with the limits of detection (LODs) being between 7 and 150 amol. With the developed method, we achieved the determination of all the 12 ribonucleotides from a single mammalian cell and from a single stamen of Arabidopsis thaliana. The method provides a valuable tool to investigate the dynamic changes of polar phosphorylated metabolites in a single cell under particular conditions.
Collapse
Affiliation(s)
- Fei-Long Liu
- Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Tian-Tian Ye
- Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Jiang-Hui Ding
- Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Xiao-Ming Yin
- Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Xiao-Ke Yang
- Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Wei-Hua Huang
- Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Bi-Feng Yuan
- Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University, Wuhan 430072, China.,School of Health Sciences, Wuhan University, Wuhan 430071, China
| | - Yu-Qi Feng
- Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University, Wuhan 430072, China.,School of Health Sciences, Wuhan University, Wuhan 430071, China
| |
Collapse
|
17
|
Sheng N, Zhao H, Chen X, Wang D, Li M, Wang Z, Zhang J, Jiang J. A novel derivatization strategy for profiling phosphate ester/anhydride metabolic network and application on glioma rats using HILIC-MS/MS. Talanta 2021; 228:122238. [PMID: 33773740 DOI: 10.1016/j.talanta.2021.122238] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 02/16/2021] [Accepted: 02/16/2021] [Indexed: 10/22/2022]
Abstract
Phosphate esters and anhydrides have great significance in the field of biochemical research and medical therapy. The genetic materials (DNA or RNA), most of the coenzymes, many intermediary metabolites, such as nucleotides and glycosyl phosphates in vivo are phosphodiesters, phosphoric acid or phosphates, respectively. It is important to monitor endogenous active phosphate metabolites for investigating many biological processes or drug mechanism. However, the detection and determination of those free active phosphate metabolites are challenged due to their unstable and easily hydrolyzed property and relatively low sensitivity, especially diphosphates and triphosphates. In the current study, we successfully developed a strategy by 3-aminomethyl pyridine (AMPy) derivatization coupled with hydrophilic interaction liquid chromatography-tandem mass spectrometry (HILIC-MS/MS) for simultaneous determination of multiple types of phosphate metabolites with good stability in 48 h and 29 to 126-fold improvement of the limit of detection (LOD). Based on the diagnostic fragment ions of different types of AMPy-derivatized phosphate metabolites, characteristic MRM ion pairs were successfully performed for global profiling of the phosphate metabolites in phosphate ester/anhydride metabolic network, including nucleotide/deoxynucleotide mono/di/triphosphates, glycosyl mono/diphosphates, and other key phosphates, such as 5-phosphoribosyl-1-pyrophosphate (PRPP), SAICARP and FAICARP in HPF, HUVEC and PBMCs cells without standards. The developed strategy greatly expanded the coverage of applying a single derivatization reaction to analyze active phosphate metabolites. Finally, the established method was performed to investigate the phosphate esters and anhydrides based on a glioma rat model. For the first time, phosphate metabolites were comprehensively characterized based on phosphate ester and anhydride metabolic network, covering nucleotide metabolism, glycolysis and pentose phosphate pathways, etc. The results demonstrated that the applicability of the method could be extended to a wider range of active phosphate compounds and could facilitate to related applications in the future studies.
Collapse
Affiliation(s)
- Ning Sheng
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, PR China
| | - Hongyi Zhao
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, PR China
| | - Xiong Chen
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, PR China
| | - Dongmei Wang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, PR China
| | - Menglin Li
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, PR China
| | - Zhe Wang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, PR China
| | - Jinlan Zhang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, PR China.
| | - Jiandong Jiang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, PR China.
| |
Collapse
|
18
|
Malfatti MC, Antoniali G, Codrich M, Burra S, Mangiapane G, Dalla E, Tell G. New perspectives in cancer biology from a study of canonical and non-canonical functions of base excision repair proteins with a focus on early steps. Mutagenesis 2021; 35:129-149. [PMID: 31858150 DOI: 10.1093/mutage/gez051] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Accepted: 12/05/2019] [Indexed: 12/15/2022] Open
Abstract
Alterations of DNA repair enzymes and consequential triggering of aberrant DNA damage response (DDR) pathways are thought to play a pivotal role in genomic instabilities associated with cancer development, and are further thought to be important predictive biomarkers for therapy using the synthetic lethality paradigm. However, novel unpredicted perspectives are emerging from the identification of several non-canonical roles of DNA repair enzymes, particularly in gene expression regulation, by different molecular mechanisms, such as (i) non-coding RNA regulation of tumour suppressors, (ii) epigenetic and transcriptional regulation of genes involved in genotoxic responses and (iii) paracrine effects of secreted DNA repair enzymes triggering the cell senescence phenotype. The base excision repair (BER) pathway, canonically involved in the repair of non-distorting DNA lesions generated by oxidative stress, ionising radiation, alkylation damage and spontaneous or enzymatic deamination of nucleotide bases, represents a paradigm for the multifaceted roles of complex DDR in human cells. This review will focus on what is known about the canonical and non-canonical functions of BER enzymes related to cancer development, highlighting novel opportunities to understand the biology of cancer and representing future perspectives for designing new anticancer strategies. We will specifically focus on APE1 as an example of a pleiotropic and multifunctional BER protein.
Collapse
Affiliation(s)
- Matilde Clarissa Malfatti
- Laboratory of Molecular Biology and DNA repair, Department of Medicine (DAME), University of Udine, Udine, Italy
| | - Giulia Antoniali
- Laboratory of Molecular Biology and DNA repair, Department of Medicine (DAME), University of Udine, Udine, Italy
| | - Marta Codrich
- Laboratory of Molecular Biology and DNA repair, Department of Medicine (DAME), University of Udine, Udine, Italy
| | - Silvia Burra
- Laboratory of Molecular Biology and DNA repair, Department of Medicine (DAME), University of Udine, Udine, Italy
| | - Giovanna Mangiapane
- Laboratory of Molecular Biology and DNA repair, Department of Medicine (DAME), University of Udine, Udine, Italy
| | - Emiliano Dalla
- Laboratory of Molecular Biology and DNA repair, Department of Medicine (DAME), University of Udine, Udine, Italy
| | - Gianluca Tell
- Laboratory of Molecular Biology and DNA repair, Department of Medicine (DAME), University of Udine, Udine, Italy
| |
Collapse
|
19
|
Rapid and sensitive determination of four bisphosphonates in rat plasma after MTBSTFA derivatization using liquid chromatography-mass spectrometry. J Pharm Biomed Anal 2020; 190:113579. [PMID: 32871420 DOI: 10.1016/j.jpba.2020.113579] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 08/11/2020] [Accepted: 08/13/2020] [Indexed: 11/23/2022]
Abstract
Bisphosphonates (BPs) have broad medical applications against osteoporosis, bone metastasis and Paget's disease. The BP-related jaw osteonecrosis limits their use extensively and has a causal relationship with the process of drug disposition, such as deposition on bone and slow elimination rate. Thus it is imperative to accurately determine BP levels in either clinical or pharmacological/toxicological studies. The ability of trimethylsilyl diazomethane (TMSD) to alkylate the hydroxyls in phosphoric groups is an advantage in terms of decreasing polarity and enhancing mass response of BPs. There are, however, practical limitations to the cumbersome sample preparation procedure, the prolonged reaction time, the by-products and the obstacle to ionization. To overcome these disadvantages, a simplified and rapid precolumn derivatization method with N-(tert-Butyldimethylsilyl)-N-methyl-trifluoroacetamide (MTBSTFA) to quantify etidronate, clodronate, alendronate and zoledronate BPs in rat plasma was established in this work. The derivatization reaction was conducted within 2 min at room temperature, and the unitary di-tert-butyldimethylsilyl (di-tBDMS) derivative was obtained for each BP. Derivatives were separated on a XTerra® MS C8 column (2.1 × 50 mm, 3.5 μm) with the mobile phase of 5 mM ammonium acetate buffer (pH 8.5) and acetonitrile, then detected using electrospray ionization tandem mass spectrometry in negative mode. An easy extraction process instead of the time-consuming solid-phase extraction (SPE) was employed for plasma treatment. The proposed method showed good linearity for BPs over the range of 2-500 ng/mL in 20 μL plasma and high sensitivity owing to the larger molecular ions, higher ionization capacity and more stable fragments of di-tBDMS derivatives. The intra- and inter-batch precision were <13.1 %, and the accuracy ranged within ±10 %. The extraction recovery varied from 75.4 to 88.0 %. The optimized method was successfully applied to characterize the pharmacokinetic profile of zoledronate in rats. Moreover, it is a promising approach for the determination of other phosphoric acid-containing metabolites.
Collapse
|
20
|
Challenges in Analysis of Hydrophilic Metabolites Using Chromatography Coupled with Mass Spectrometry. JOURNAL OF ANALYSIS AND TESTING 2020. [DOI: 10.1007/s41664-020-00126-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
21
|
Li Z, Zhang H, Li Y, Chen H, Wang C, Wong VKW, Jiang Z, Zhang W. Phytotherapy using blueberry leaf polyphenols to alleviate non-alcoholic fatty liver disease through improving mitochondrial function and oxidative defense. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2020; 69:153209. [PMID: 32240928 DOI: 10.1016/j.phymed.2020.153209] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 02/28/2020] [Accepted: 03/16/2020] [Indexed: 05/28/2023]
Abstract
BACKGROUND Since non-alcoholic fatty liver disease (NAFLD) pathogenesis is multi-factorial, pharmacotherapy with a specific target commonly exhibits limited efficacy. Phytotherapy, whose therapeutic efficacy is based on the combined action of several active compounds, offers new treatment opportunity for NAFLD. As a representative, many natural polyphenols could be utilized in phytotherapy for NAFLD. PURPOSE In present work, we aimed to investigate the therapeutic effects and underlying mechanism of polyphenols in blueberry leaves (PBL) on NAFLD from a mitochondria-centric perspective since mitochondrial dysfunction could play a dominant role in NAFLD. METHODS Identification and quantification of PBL were performed using liquid chromatography coupled with tandem mass spectrometry. The beneficial effects, especially improving mitochondrial function, and potential mechanism of PBL on NAFLD were studied by in vitro and in vivo study. RESULTS Polyphenols were abundant in blueberry leaves making it advantaged in NAFLD phytotherapy. PBL effectively alleviated hepatic steatosis, oxidative stress and inflammation as indicated by both in vitro and in vivo study. Furthermore, PBL mediated improvement of mitochondrial dysfunction and antioxidant capability through activation of AMPK/PGC-1α/SIRT3 signaling axis. CONCLUSION Considering that mitochondrial dysfunction takes precedence over hepatic steatosis and induces NAFLD development, we conclude that PBL improve mitochondrial dysfunction and oxidative defense, subsequently alleviate hepatic steatosis, oxidative stress and inflammation, and eventually alleviate NAFLD.
Collapse
Affiliation(s)
- Zheng Li
- State Key Laboratory of Quality Research in Chinese Medicines and Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Taipa, Macau, China
| | - Huixia Zhang
- State Key Laboratory of Quality Research in Chinese Medicines and Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Taipa, Macau, China
| | - Yan Li
- State Key Laboratory of Quality Research in Chinese Medicines and Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Taipa, Macau, China
| | - Hongwei Chen
- Faculty of Medicine, Macau University of Science and Technology, Taipa, Macau, China
| | - Caiyun Wang
- State Key Laboratory of Quality Research in Chinese Medicines and Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Taipa, Macau, China
| | - Vincent Kam Wai Wong
- State Key Laboratory of Quality Research in Chinese Medicines and Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Taipa, Macau, China
| | - Zhihong Jiang
- State Key Laboratory of Quality Research in Chinese Medicines and Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Taipa, Macau, China
| | - Wei Zhang
- State Key Laboratory of Quality Research in Chinese Medicines and Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Taipa, Macau, China.
| |
Collapse
|
22
|
Liu FL, Qi CB, Cheng QY, Ding JH, Yuan BF, Feng YQ. Diazo Reagent Labeling with Mass Spectrometry Analysis for Sensitive Determination of Ribonucleotides in Living Organisms. Anal Chem 2019; 92:2301-2309. [PMID: 31845797 DOI: 10.1021/acs.analchem.9b05122] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Ribonucleotide analogues and their related phosphorylated metabolites play critical roles in tumor metabolism. However, determination of the endogenous ribonucleotides from the complex biological matrix is still a challenge due to their high structural similarity and high polarity that will lead to the low retention and low detection sensitivities by liquid chromatogram mass spectrometry analysis. In this study, we developed the diazo reagent labeling strategy with mass spectrometry analysis for sensitive determination of ribonucleotides in the living organism. A pair of light and heavy stable isotope labeling reagents, 2-(diazomethyl)-N-methyl-N-phenyl-benzamide (2-DMBA) and d5-2-(diazomethyl)-N-methyl-N-phenyl-benzamide (d5-2-DMBA), were synthesized to label ribonucleotides. 2-DMBA showed high specificity and high efficiency for the labeling of ribonucleotides. Our results demonstrated that the detection sensitivities of 12 ribonucleotides increased by 17-174-fold upon 2-DMBA labeling. The obtained limits of detection (LODs) of ribonucleotides ranged from 0.07 fmol to 0.41 fmol. Using this method, we achieved the sensitive and accurate detection of ribonucleotides from only a few cells (8 cells). To the best of our knowledge, this is the highest detection sensitivity for ribonucleotides ever reported. In addition, we found that the contents of almost all of these ribonucleotides were significantly increased in human breast carcinoma tissues compared to tumor-adjacent normal tissues, suggesting that endogenous ribonucleotides may play certain functional roles in the regulation of cancer development and formation. This method also can be potentially applied in the analysis of phosphorylated compounds.
Collapse
Affiliation(s)
- Fei-Long Liu
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Sauvage Center for Molecular Sciences, Department of Chemistry , Wuhan University , Wuhan 430072 , China
| | - Chu-Bo Qi
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Sauvage Center for Molecular Sciences, Department of Chemistry , Wuhan University , Wuhan 430072 , China.,Hubei Cancer Hospital, Tongji Medical College , Huazhong University of Science and Technology , Wuhan 430079 , China
| | - Qing-Yun Cheng
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Sauvage Center for Molecular Sciences, Department of Chemistry , Wuhan University , Wuhan 430072 , China
| | - Jiang-Hui Ding
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Sauvage Center for Molecular Sciences, Department of Chemistry , Wuhan University , Wuhan 430072 , China
| | - Bi-Feng Yuan
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Sauvage Center for Molecular Sciences, Department of Chemistry , Wuhan University , Wuhan 430072 , China
| | - Yu-Qi Feng
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Sauvage Center for Molecular Sciences, Department of Chemistry , Wuhan University , Wuhan 430072 , China
| |
Collapse
|
23
|
Han Y, Qu YQ, Mok SWF, Chen J, Xia CL, He HQ, Li Z, Zhang W, Qiu CL, Liu L, Law BYK, Wong VKW. A Novel Drug Resistance Mechanism: Genetic Loss of Xeroderma Pigmentosum Complementation Group C ( XPC) Enhances Glycolysis-Mediated Drug Resistance in DLD-1 Colon Cancer Cells. Front Pharmacol 2019; 10:912. [PMID: 31551763 PMCID: PMC6746939 DOI: 10.3389/fphar.2019.00912] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 07/18/2019] [Indexed: 02/04/2023] Open
Abstract
The pro-apoptotic proteins BAX and BAK are critical regulatory factors constituting the apoptosis machinery. Downregulated expression of BAX and BAK in human colorectal cancer lead to chemotherapeutic failure and poor survival rate in patients. In this study, isogenic DLD-1 colon cancer cells and the BAX and BAK double knockout counterpart were used as the cellular model to investigate the role of BAX/BAK-associated signaling network and the corresponding downstream effects in the development of drug resistance. Our data suggested that DLD-1 colon cancer cells with BAX/BAK double-knockout were selectively resistant to a panel of FDA-approved drugs (27 out of 66), including etoposide. PCR array analysis for the transcriptional profiling of genes related to human cancer drug resistance validated the altered level of 12 genes (3 upregulated and 9 downregulated) in DLD-1 colon cancer cells lack of BAX and BAK expression. Amongst these genes, XPC responsible for DNA repairment and cellular respiration demonstrated the highest tolerance towards etoposide treatment accompanying upregulated glycolysis as revealed by metabolic stress assay in DLD-1 colon cancer cells deficient with XPC. Collectively, our findings provide insight into the search of novel therapeutic strategies and pharmacological targets to against cancer drug resistance genetically associated with BAX, BAK, and XPC, for improving the therapy of colorectal cancer via the glycolytic pathway.
Collapse
Affiliation(s)
- Yu Han
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Yuan Qing Qu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Simon Wing Fai Mok
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Juan Chen
- The Key Laboratory of Molecular Biology of Infectious Diseases designated by the Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Cheng Lai Xia
- Foshan Maternal and Child Health Research Institute, Foshan Women and Children's Hospital Affiliated to Southern Medical University, Foshan, China
| | - Hu Qiang He
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Zheng Li
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Wei Zhang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Cong Ling Qiu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Liang Liu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Betty Yuen Kwan Law
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Vincent Kam Wai Wong
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| |
Collapse
|
24
|
Kuskovsky R, Buj R, Xu P, Hofbauer S, Doan MT, Jiang H, Bostwick A, Mesaros C, Aird KM, Snyder NW. Simultaneous isotope dilution quantification and metabolic tracing of deoxyribonucleotides by liquid chromatography high resolution mass spectrometry. Anal Biochem 2019; 568:65-72. [PMID: 30605633 PMCID: PMC7359880 DOI: 10.1016/j.ab.2018.12.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 12/26/2018] [Accepted: 12/29/2018] [Indexed: 12/21/2022]
Abstract
Quantification of cellular deoxyribonucleoside mono- (dNMP), di- (dNDP), triphosphates (dNTPs) and related nucleoside metabolites are difficult due to their physiochemical properties and widely varying abundance. Involvement of dNTP metabolism in cellular processes including senescence and pathophysiological processes including cancer and viral infection make dNTP metabolism an important bioanalytical target. We modified a previously developed ion pairing reversed phase chromatography-mass spectrometry method for the simultaneous quantification and 13C isotope tracing of dNTP metabolites. dNMPs, dNDPs, and dNTPs were chromatographically resolved to avoid mis-annotation of in-source fragmentation. We used commercially available 13C15N-stable isotope labeled analogs as internal standards and show that this isotope dilution approach improves analytical figures of merit. At sufficiently high mass resolution achievable on an Orbitrap mass analyzer, stable isotope resolved metabolomics allows simultaneous isotope dilution quantification and 13C isotope tracing from major substrates including 13C-glucose. As a proof of principle, we quantified dNMP, dNDP and dNTP pools from multiple cell lines. We also identified isotopologue enrichment from glucose corresponding to ribose from the pentose-phosphate pathway in dNTP metabolites.
Collapse
Affiliation(s)
- Rostislav Kuskovsky
- AJ Drexel Autism Institute, Drexel University, 3020 Market St Suite 560, Philadelphia, PA, 19104, USA
| | - Raquel Buj
- Department of Cellular and Molecular Physiology, Penn State College of Medicine, Hershey, PA, USA
| | - Peining Xu
- AJ Drexel Autism Institute, Drexel University, 3020 Market St Suite 560, Philadelphia, PA, 19104, USA
| | - Samuel Hofbauer
- Centers for Cancer Pharmacology and Excellence in Environmental Toxicology, Department of Pharmacology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Mary T Doan
- AJ Drexel Autism Institute, Drexel University, 3020 Market St Suite 560, Philadelphia, PA, 19104, USA
| | - Helen Jiang
- AJ Drexel Autism Institute, Drexel University, 3020 Market St Suite 560, Philadelphia, PA, 19104, USA
| | - Anna Bostwick
- AJ Drexel Autism Institute, Drexel University, 3020 Market St Suite 560, Philadelphia, PA, 19104, USA
| | - Clementina Mesaros
- Centers for Cancer Pharmacology and Excellence in Environmental Toxicology, Department of Pharmacology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Katherine M Aird
- Department of Cellular and Molecular Physiology, Penn State College of Medicine, Hershey, PA, USA
| | - Nathaniel W Snyder
- AJ Drexel Autism Institute, Drexel University, 3020 Market St Suite 560, Philadelphia, PA, 19104, USA.
| |
Collapse
|