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Marchante-Gayón JM, Nicolás Carcelén J, Potes Rodríguez H, Pineda-Cevallos D, Rodas Sánchez L, González-Gago A, Rodríguez-González P, García Alonso JI. Quantification of modified nucleotides and nucleosides by isotope dilution mass spectrometry. MASS SPECTROMETRY REVIEWS 2024; 43:998-1018. [PMID: 37597182 DOI: 10.1002/mas.21865] [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: 04/19/2023] [Revised: 07/26/2023] [Accepted: 08/06/2023] [Indexed: 08/21/2023]
Abstract
Epigenetic modifications are closely related to certain disorders of the organism, including the development of tumors. One of the main epigenetic modifications is the methylation of DNA cytosines, 5-methyl-2'-deoxycycytidine. Furthermore, 5-mdC can be oxidized to form three new modifications, 5-(hydroxymethyl)-2'-deoxycytidine, 5-formyl-2'-deoxycytidine, and 5-carboxy-2'-deoxycytidine. The coupling of liquid chromatography with tandem mass spectrometry has been widely used for the total determination of methylated DNA cytosines in samples of biological and clinical interest. These methods are based on the measurement of the free compounds (e.g., urine) or after complete hydrolysis of the DNA (e.g., tissues) followed by a preconcentration, derivatization, and/or clean-up step. This review highlights the main advances in the quantification of modified nucleotides and nucleosides by isotope dilution using isotopically labeled analogs combined with liquid or gas chromatography coupled to mass spectrometry reported in the last 20 years. The different possible sources of labeled compounds are indicated. Special emphasis has been placed on the different types of chromatography commonly used (reverse phase and hydrophilic interaction liquid chromatography) and the derivatization methods developed to enhance chromatographic resolution and ionization efficiency. We have also revised the application of bidimensional chromatography and indicated significant biological and clinical applications of these determinations.
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Affiliation(s)
- Juan M Marchante-Gayón
- Department of Physical and Analytical Chemistry, Faculty of Chemistry, University of Oviedo, Oviedo, Spain
| | - Jesús Nicolás Carcelén
- Department of Physical and Analytical Chemistry, Faculty of Chemistry, University of Oviedo, Oviedo, Spain
| | - Helí Potes Rodríguez
- Department of Physical and Analytical Chemistry, Faculty of Chemistry, University of Oviedo, Oviedo, Spain
| | - Daniela Pineda-Cevallos
- Department of Physical and Analytical Chemistry, Faculty of Chemistry, University of Oviedo, Oviedo, Spain
| | - Laura Rodas Sánchez
- Department of Physical and Analytical Chemistry, Faculty of Chemistry, University of Oviedo, Oviedo, Spain
| | - Adriana González-Gago
- Department of Physical and Analytical Chemistry, Faculty of Chemistry, University of Oviedo, Oviedo, Spain
| | - Pablo Rodríguez-González
- Department of Physical and Analytical Chemistry, Faculty of Chemistry, University of Oviedo, Oviedo, Spain
| | - Jose I García Alonso
- Department of Physical and Analytical Chemistry, Faculty of Chemistry, University of Oviedo, Oviedo, Spain
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2
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Bauer BA, Schmidt CM, Ruddy KJ, Olson JE, Meydan C, Schmidt JC, Smith SY, Couch FJ, Earls JC, Price ND, Dudley JT, Mason CE, Zhang B, Phipps SM, Schmidt MA. A Multiomics, Molecular Atlas of Breast Cancer Survivors. Metabolites 2024; 14:396. [PMID: 39057719 PMCID: PMC11279123 DOI: 10.3390/metabo14070396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2024] [Revised: 07/09/2024] [Accepted: 07/15/2024] [Indexed: 07/28/2024] Open
Abstract
Breast cancer imposes a significant burden globally. While the survival rate is steadily improving, much remains to be elucidated. This observational, single time point, multiomic study utilizing genomics, proteomics, targeted and untargeted metabolomics, and metagenomics in a breast cancer survivor (BCS) and age-matched healthy control cohort (N = 100) provides deep molecular phenotyping of breast cancer survivors. In this study, the BCS cohort had significantly higher polygenic risk scores for breast cancer than the control group. Carnitine and hexanoyl carnitine were significantly different. Several bile acid and fatty acid metabolites were significantly dissimilar, most notably the Omega-3 Index (O3I) (significantly lower in BCS). Proteomic and metagenomic analyses identified group and pathway differences, which warrant further investigation. The database built from this study contributes a wealth of data on breast cancer survivorship where there has been a paucity, affording the ability to identify patterns and novel insights that can drive new hypotheses and inform future research. Expansion of this database in the treatment-naïve, newly diagnosed, controlling for treatment confounders, and through the disease progression, can be leveraged to profile and contextualize breast cancer and breast cancer survivorship, potentially leading to the development of new strategies to combat this disease and improve the quality of life for its victims.
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Affiliation(s)
| | - Caleb M. Schmidt
- Sovaris Aerospace, Boulder, CO 80302, USA
- Advanced Pattern Analysis and Human Performance Group, Boulder, CO 80302, USA
| | | | | | - Cem Meydan
- Thorne Research, Inc., Summerville, SC 29483, USA
| | - Julian C. Schmidt
- Sovaris Aerospace, Boulder, CO 80302, USA
- Advanced Pattern Analysis and Human Performance Group, Boulder, CO 80302, USA
| | | | | | | | - Nathan D. Price
- Thorne Research, Inc., Summerville, SC 29483, USA
- Buck Institute for Research on Aging, Novato, CA 94945, USA
| | | | | | - Bodi Zhang
- Thorne Research, Inc., Summerville, SC 29483, USA
| | | | - Michael A. Schmidt
- Sovaris Aerospace, Boulder, CO 80302, USA
- Advanced Pattern Analysis and Human Performance Group, Boulder, CO 80302, USA
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3
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Zhao M, Zou G, Tang J, Guo J, Wang F, Chen Z. Probe-labeled electrochemical approach for highly selective detection of 5-carboxycytosine in DNA. Anal Chim Acta 2023; 1273:341521. [PMID: 37423653 DOI: 10.1016/j.aca.2023.341521] [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: 04/03/2023] [Revised: 06/07/2023] [Accepted: 06/09/2023] [Indexed: 07/11/2023]
Abstract
5-carboxycytosine (5caC) plays a critical role as an intermediate form in DNA methylation and demethylation processes. Its distribution and quantity significantly influence the dynamic equilibrium of these processes, thereby impacting the normal physiological activities of organisms. However, the analysis of 5caC presents a significant challenge due to its low abundance in the genome, making it almost undetectable in most tissues. In response to this challenge, we propose a selective method for 5caC detection using differential pulse voltammetry (DPV) at glassy carbon electrode (GCE), hinging on probe labeling. The probe molecule Biotin LC-Hydrazide was introduced into the target base and the labeled DNA was immobilized onto the electrode surface with the help of T4 polynucleotide kinase (T4 PNK). Leveraging the precise and efficient recognition of streptavidin and biotin, streptavidin-horseradish peroxidase (SA-HRP) on the surface of the electrode catalyzed a redox reaction involving hydroquinone and hydrogen peroxide, resulting in an amplified current signal. This procedure allowed us to quantitatively detect 5caC based on variations in current signals. This method demonstrated good linearity ranging from 0.01 to 100 nM with a detection limit as low as 7.9 pM. We have successfully applied it to evaluate the 5caC levels in complex biological samples. The probe labeling contributes to a high selectivity for 5caC detection, while the sulfhydryl modification via T4 PNK efficiently circumvents the limitation of specific sequences. Encouragingly, no reports have been made about electrochemical methods for detecting 5caC in DNA, suggesting that our method offers a promising alternative for 5caC detection in clinical samples.
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Affiliation(s)
- Mei Zhao
- School of Pharmaceutical Sciences, Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (MOE), Wuhan University, Wuhan, 430071, China
| | - Guangrong Zou
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Jing Tang
- School of Pharmaceutical Sciences, Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (MOE), Wuhan University, Wuhan, 430071, China
| | - Jingyi Guo
- School of Pharmaceutical Sciences, Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (MOE), Wuhan University, Wuhan, 430071, China
| | - Fang Wang
- School of Pharmaceutical Sciences, Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (MOE), Wuhan University, Wuhan, 430071, China.
| | - Zilin Chen
- School of Pharmaceutical Sciences, Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (MOE), Wuhan University, Wuhan, 430071, China.
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4
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Zheng W, Wang M, Chai X, Pan F, Xu M, Wang Y, Lan L, Hu F, Zhang Z, Chen Z. Targeted metabolomics analysis of nucleosides and the identification of biomarkers for colorectal adenomas and colorectal cancer. Front Mol Biosci 2023; 10:1163089. [PMID: 37441164 PMCID: PMC10334214 DOI: 10.3389/fmolb.2023.1163089] [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: 02/10/2023] [Accepted: 03/29/2023] [Indexed: 07/15/2023] Open
Abstract
The morbidity and mortality of colorectal cancer (CRC) have been increasing in recent years, and early detection of CRC can improve the survival rate of patients. RNA methylation plays crucial roles in many biological processes and has been implicated in the initiation of various diseases, including cancer. Serum contains a variety of biomolecules and is an important clinical sample for biomarker discovery. In this study, we developed a targeted metabolomics method for the quantitative analysis of nucleosides in human serum samples by using liquid chromatography with tandem mass spectrometry (LC-MS/MS). We successfully quantified the concentrations of nucleosides in serum samples from 51 healthy controls, 37 patients with colorectal adenomas, and 55 patients with CRC. The results showed that the concentrations of N 6-methyladenosine (m6A), N 1-methyladenosine (m1A), and 3-methyluridine (m3U) were increased in patients with CRC, whereas the concentrations of N 2-methylguanosine (m2G), 2'-O-methyluridine (Um), and 2'-O-methylguanosine (Gm) were decreased in patients with CRC, compared with the healthy controls and patients with colorectal adenomas. Moreover, the levels of 2'-O-methyluridine and 2'-O-methylguanosine were lower in patients with colorectal adenomas than those in healthy controls. Interestingly, the levels of Um and Gm gradually decreased in the following order: healthy controls to colorectal adenoma patients to CRC patients. These results revealed that the aberrations of these nucleosides were tightly correlated to colorectal adenomas and CRC. In addition, the present work will stimulate future investigations about the regulatory roles of these nucleosides in the initiation and development of CRC.
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Affiliation(s)
- Weifang Zheng
- Lanxi Hospital of Traditional Chinese Medicine, Jinhua, China
| | - Mingwei Wang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
| | | | - Fuzhen Pan
- Lanxi Hospital of Traditional Chinese Medicine, Jinhua, China
| | - Meihui Xu
- Lanxi Hospital of Traditional Chinese Medicine, Jinhua, China
| | - Yingchen Wang
- Lanxi Hospital of Traditional Chinese Medicine, Jinhua, China
| | | | - Feiran Hu
- Lanxi Hospital of Traditional Chinese Medicine, Jinhua, China
| | - Zhe Zhang
- Lanxi Red Cross Hospital, Jinhua, China
| | - Zhu Chen
- Lanxi Hospital of Traditional Chinese Medicine, Jinhua, China
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5
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Jordaens S, Zwaenepoel K, Tjalma W, Deben C, Beyers K, Vankerckhoven V, Pauwels P, Vorsters A. Urine biomarkers in cancer detection: A systematic review of preanalytical parameters and applied methods. Int J Cancer 2023; 152:2186-2205. [PMID: 36647333 DOI: 10.1002/ijc.34434] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/25/2022] [Accepted: 12/29/2022] [Indexed: 01/18/2023]
Abstract
The aim of this review was to explore the status of urine sampling as a liquid biopsy for noninvasive cancer research by reviewing used preanalytical parameters and protocols. We searched two main health sciences databases, PubMed and Web of Science. From all eligible publications (2010-2022), information was extracted regarding: (a) study population characteristics, (b) cancer type, (c) urine preanalytics, (d) analyte class, (e) isolation method, (f) detection method, (g) comparator used, (h) biomarker type, (i) conclusion and (j) sensitivity and specificity. The search query identified 7835 records, of which 924 unique publications remained after screening the title, abstract and full text. Our analysis demonstrated that many publications did not report information about the preanalytical parameters of their urine samples, even though several other studies have shown the importance of standardization of sample handling. Interestingly, it was noted that urine is used for many cancer types and not just cancers originating from the urogenital tract. Many different types of relevant analytes have been shown to be found in urine. Additionally, future considerations and recommendations are discussed: (a) the heterogeneous nature of urine, (b) the need for standardized practice protocols and (c) the road toward the clinic. Urine is an emerging liquid biopsy with broad applicability in different analytes and several cancer types. However, standard practice protocols for sample handling and processing would help to elaborate the clinical utility of urine in cancer research, detection and disease monitoring.
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Affiliation(s)
- Stephanie Jordaens
- Center for Oncological Research (CORE), Integrated Personalized & Precision Oncology Network (IPPON), University of Antwerp, Wilrijk, Belgium.,Novosanis NV, Wijnegem, Belgium
| | - Karen Zwaenepoel
- Center for Oncological Research (CORE), Integrated Personalized & Precision Oncology Network (IPPON), University of Antwerp, Wilrijk, Belgium.,Laboratory of Pathological Anatomy, Antwerp University Hospital (UZA), Edegem, Belgium
| | - Wiebren Tjalma
- Center for Oncological Research (CORE), Integrated Personalized & Precision Oncology Network (IPPON), University of Antwerp, Wilrijk, Belgium.,Multidisciplinary Breast Clinic, Gynecological Oncology Unit, Department of Obstetrics and Gynecology, Antwerp University Hospital (UZA), Edegem, Belgium
| | - Christophe Deben
- Center for Oncological Research (CORE), Integrated Personalized & Precision Oncology Network (IPPON), University of Antwerp, Wilrijk, Belgium
| | | | - Vanessa Vankerckhoven
- Novosanis NV, Wijnegem, Belgium.,Center for Evaluation of Vaccination (CEV), Vaccine & Infectious Disease Institute (VAXINFECTIO), Faculty of Medicine and Health Sciences, University of Antwerp, Wilrijk, Belgium
| | - Patrick Pauwels
- Center for Oncological Research (CORE), Integrated Personalized & Precision Oncology Network (IPPON), University of Antwerp, Wilrijk, Belgium.,Laboratory of Pathological Anatomy, Antwerp University Hospital (UZA), Edegem, Belgium
| | - Alex Vorsters
- Center for Evaluation of Vaccination (CEV), Vaccine & Infectious Disease Institute (VAXINFECTIO), Faculty of Medicine and Health Sciences, University of Antwerp, Wilrijk, Belgium
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Wei YQ, Zhao LL, You YX, Zhao YL, Zheng XX, Du Y, Tang DQ. Development of magnetic molecularly imprinted polymers with double templates for the rapid and selective determination of carbamazepine and lamotrigine in serum. RSC Adv 2022; 12:10051-10061. [PMID: 35424933 PMCID: PMC8966734 DOI: 10.1039/d1ra09306a] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 03/22/2022] [Indexed: 11/21/2022] Open
Abstract
A dual-template magnetic molecularly imprinted polymer (Dt-MMIP) with a specific recognition capability for carbamazepine (CBZ) and lamotrigine (LTG) was synthesized using methacrylic acid as a functional monomer, and ethylene glycol dimethylmethacrylate as a cross-linking agent. A magnetic non-molecularly imprinted polymer without templates (MNIP) was also prepared using the same procedure. The prepared polymers were characterized using scanning electron microscopy, Fourier-transform infrared spectroscopy and adsorption experiments. Results indicated that both Dt-MMIPs and MNIPs were microspherical nanoparticles, and the surface of the Dt-MMIP was rougher than that of the MNIP. In addition, the prepared Dt-MMIPs possessed a higher adsorption capacity and better selectivity for CBZ and LTG than the MNIPs. The maximum static adsorption capacities of Dt-MMIP for CBZ and LTG were 249.5 and 647.9 μg g-1, respectively, whereas those of MNIP were 75.8 and 379.8 μg g-1, respectively. The obtained Dt-MMIPs were applied as a magnetic solid-phase extraction sorbent for the rapid and selective extraction of CBZ and LTG in rat serum samples, and determination was performed by high-performance liquid chromatography with UV detection (HPLC-UV). The developed method of dispersive SPE based on Dt-MMIPs coupled to HPLC-UV has good rapidity and selectivity, and application prospects in serum.
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Affiliation(s)
- Ya-Qin Wei
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University Xuzhou 221004 China
| | - Lin-Lin Zhao
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University Xuzhou 221004 China
| | - Yu-Xin You
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University Xuzhou 221004 China
| | - Yan-Lin Zhao
- Department of Pharmacy, Suining People's Hospital Affiliated to Xuzhou Medical University Suining 221202 China
| | - Xiao-Xiao Zheng
- Department of Pharmacy, Xuzhou Municipal Hospital Affiliated to Xuzhou Medical University Xuzhou 221002 China
| | - Yan Du
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University Xuzhou 221004 China
| | - Dao-Quan Tang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University Xuzhou 221004 China.,Department of Pharmacy, Xuzhou Municipal Hospital Affiliated to Xuzhou Medical University Xuzhou 221002 China.,Department of Pharmaceutical Analysis, Xuzhou Medical University 209 Tongshan Road Xuzhou 221204 Jiangsu Province China +86 516 83263133 +86 516 83263133
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7
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Lyu J, Li H, Yin D, Zhao M, Sun Q, Guo M. Analysis of eight bile acids in urine of gastric cancer patients based on covalent organic framework enrichment coupled with liquid chromatography-tandem mass spectrometry. J Chromatogr A 2021; 1653:462422. [PMID: 34348207 DOI: 10.1016/j.chroma.2021.462422] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 07/14/2021] [Accepted: 07/16/2021] [Indexed: 12/12/2022]
Abstract
Gastric carcinoma is one of the most common and deadly forms of cancer. Early detection is critical for successful treatment of gastric cancer, and examination of BAs in urine may provide a critical diagnostic tool for identifying gastric cancer at stages when it can still be cured. Bile acids (BAs) are a crucial toxic factor correlated with the injury of gastric mucosa and as such, quantifying the amount of BA in patient's urine could provide a new means to quickly and non-invasively identify the presence of gastric cancer in the early stages. Here, a covalent organic framework (COF) material synthesized on the basis of 1,3,5-tris(4-nitrophenyl)benzene (TAPB) and pyromellitic dianhydride (PMDA) was used as stationary phase for SPE column that was coupled to LC-MS/MS for quantitative analysis of eight BAs in human urine, including cholic acid (CA), deoxycholic acid (DCA), glycochenodeoxycholic acid (GCDCA), glycocholic acid (GCA), taurochenodeoxycholic acid (TCDCA), lithocholic acid (LCA), hyodeoxycholic acid (HDCA), and chenodeoxycholic acid (CDCA). The enrichment effect of synthesized COF material was better than commercial SPE and HLB column. The sensitivity can increase 9.37- to 54.30- fold (calculated by the ratio of peak area between before and after enrichment). The probable mechanism is due to the great porosity and the similar polarity with BAs of the COF material. By compared with previous literatures, our method had the minimum limit of detection, which achieved 46.40, 25.75, 47.40, 47.37, 30.42, and 33.92 pg /mL, respectively, for GCA, GCDCA, CA, CDCA, HDCA and DCA after enrichment. These eight BAs also accomplished excellent linearity from 0.34 to 10,000 ng/mL. This material was successfully applied in the measurements of these six BAs in human urine from 76 gastric cancer patients and 32 healthy people. Compared to healthy people, levels of CA, CDCA, DCA, and HDCA were significantly elevated and levels of GCDCA were depressed, respectively, in gastric cancer patients. Our work suggests that these acids may act as potential biomarkers for gastric cancer and our framework provides a method for "non-invasive" diagnosis of gastric cancer.
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Affiliation(s)
- Jinxiu Lyu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu, 221004, China
| | - Haijuan Li
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu, 221004, China
| | - Dengyang Yin
- Jingjiang People's Hospital, Taizhou, Jiangsu, 214500, China
| | - Meng Zhao
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu, 221004, China
| | - Qiang Sun
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu, 221004, China
| | - Mengzhe Guo
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu, 221004, China.
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8
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Shao L, Chen X, Lyu J, Zhao M, Li Q, Ji S, Sun Q, Tang D, Geng H, Guo M. Enrichment and Quantitative Determination of Free 3,5- Diiodothyronine, 3',5'-Diiodothyronine, and 3,5-Diiodothyronamine in Human Serum of Thyroid Cancer by Covalent Organic Hyper Cross-linked Poly-ionic Liquid. J Chromatogr A 2020; 1637:461821. [PMID: 33360433 DOI: 10.1016/j.chroma.2020.461821] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 12/09/2020] [Accepted: 12/14/2020] [Indexed: 01/08/2023]
Abstract
The incidence of thyroid cancer is increasing worldwide. So far, still no non-invasive clinical test biomarkers were developed for the diagnosis of thyroid cancer. The diiodothyronines (T2s) are precursors and metabolites of thyroid hormone (T4). Some reports predict that T2s may be associated with several thyroid diseases, especially the thyroid cancer. Detecting free T2s in human serum may help the diagnosis of thyroid cancer. However, few works have reported the detection of T2s due to their trace amounts. Here we developed a novel hyper organic cross-linked poly ionic liquid (PIL) material for the enrichment of three main compounds in T2s family, including 3,5- diiodothyronine (3,5-T2), 3',5'-diiodothyronine (3',5'-T2), and 3,5-diiodothyronamine (3,5-T2AM). This PIL material provided specific enrichment superiority for three T2s. After enrichment, the signal intensity of 3,5-T2, 3',5'-T2, and 3,5-T2AM increased 14, 132 and 1.6 folds, respectively, with LOQ of 76, 87, and 107 fM, respectively. Finally, we successfully applied PIL material coupled with HPLC-ESI-MS/MS in enrichment and quantitative determination of free 3,5-T2, 3',5'-T2, and 3,5-T2AM in human serum of 45 thyroid cancer patients and 15 healthy people. We also used free thyroid hormone (FT4) as the calibration reference to eliminate individual differences. We found that the levels of 3,5-T2 (P < 0.001), and 3',5'-T2 (P = 0.001) in patients with thyroid cancer were significantly higher than those in healthy people. Additionally, we further investigated the power of different T2 thyroid hormones divided FT4 to classify thyroid cancer patients and healthy people. And 3,5-T2/FT4 had the highest classification performance for discriminating thyroid cancer patients from healthy people at certain threshold, indicating that 3,5-T2/FT4 in human serum can act as potential biomarkers for "non-invasive" clinical diagnosis of thyroid cancer.
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Affiliation(s)
- Lili Shao
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Xi Chen
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Jinxiu Lyu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Meng Zhao
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Qing Li
- Xuzhou Central Hospital, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Shuai Ji
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Qiang Sun
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Daoquan Tang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Houfa Geng
- Xuzhou Central Hospital, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China.
| | - Mengzhe Guo
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China.
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9
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Woollam M, Teli M, Liu S, Daneshkhah A, Siegel AP, Yokota H, Agarwal M. Urinary Volatile Terpenes Analyzed by Gas Chromatography-Mass Spectrometry to Monitor Breast Cancer Treatment Efficacy in Mice. J Proteome Res 2020; 19:1913-1922. [PMID: 32227867 DOI: 10.1021/acs.jproteome.9b00722] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Urinary volatile terpene (VT) levels are significantly altered with induced models of breast cancer in mice. The question arises whether VTs can detect the efficacy of antitumor treatments. BALB/c mice were injected with 4T1.2 murine tumor cells in the mammary pad or iliac artery to model localized breast cancer and induced bone metastasis. The effect of two dopaminergic antitumor agents was tested by conventional histology and altered VT levels. The headspace of urine specimens was analyzed by gas chromatography-mass spectrometry. In the localized model, the statistical significance (p < 0.05) was identified for 26% of VTs, and in the metastasis model, 19% of VTs. The authors discovered separate VT panels classifying localized/control [area under the curve (AUC) = 1.0] and metastasis/control (AUC = 0.98). Treatment samples were tested using these panels, which showed that mice treated with either agent were statistically significantly different from cancer samples, which is consistent with conventional analysis.
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Affiliation(s)
- Mark Woollam
- Integrated Nanosystems Development Institute, Indiana University-Purdue University Indianapolis, Indianapolis 46202, Indiana, United States.,Department of Chemistry and Chemical Biology, Indiana University-Purdue University Indianapolis, Indianapolis 46202, Indiana, United States
| | - Meghana Teli
- Integrated Nanosystems Development Institute, Indiana University-Purdue University Indianapolis, Indianapolis 46202, Indiana, United States.,Department of Biomedical Engineering, Indiana University-Purdue University Indianapolis Indianapolis 46202, Indiana, United States
| | - Shengzhi Liu
- Integrated Nanosystems Development Institute, Indiana University-Purdue University Indianapolis, Indianapolis 46202, Indiana, United States.,Department of Biomedical Engineering, Indiana University-Purdue University Indianapolis Indianapolis 46202, Indiana, United States
| | - Ali Daneshkhah
- Integrated Nanosystems Development Institute, Indiana University-Purdue University Indianapolis, Indianapolis 46202, Indiana, United States
| | - Amanda P Siegel
- Integrated Nanosystems Development Institute, Indiana University-Purdue University Indianapolis, Indianapolis 46202, Indiana, United States.,Department of Chemistry and Chemical Biology, Indiana University-Purdue University Indianapolis, Indianapolis 46202, Indiana, United States
| | - Hiroki Yokota
- Integrated Nanosystems Development Institute, Indiana University-Purdue University Indianapolis, Indianapolis 46202, Indiana, United States.,Department of Biomedical Engineering, Indiana University-Purdue University Indianapolis Indianapolis 46202, Indiana, United States.,Biomechanics and Biomaterials Research Center, Indianapolis 46202, Indiana, United States
| | - Mangilal Agarwal
- Integrated Nanosystems Development Institute, Indiana University-Purdue University Indianapolis, Indianapolis 46202, Indiana, United States.,Department of Chemistry and Chemical Biology, Indiana University-Purdue University Indianapolis, Indianapolis 46202, Indiana, United States.,Department of Mechanical Engineering and Energy, Indiana University-Purdue University Indianapolis, Indianapolis 46202, Indiana, United States
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10
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Yang L, Wang Y, Cai H, Wang S, Shen Y, Ke C. Application of metabolomics in the diagnosis of breast cancer: a systematic review. J Cancer 2020; 11:2540-2551. [PMID: 32201524 PMCID: PMC7066003 DOI: 10.7150/jca.37604] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 12/31/2019] [Indexed: 12/24/2022] Open
Abstract
Breast cancer (BC) remains the most frequent type of cancer in females worldwide. However, the pathogenesis of BC is still under the cloud, along with the huge challenge of early diagnosis, which is widely acknowledged as the key to a successful therapy. Metabolomics, a newborn innovative technique in recent years, has demonstrated great potential in cancer-related researches. The aim of this review is to look back on clinical and cellular metabolomic studies in the diagnosis of BC over the past decade, and provide a systematic summary of metabolic biomarkers and pathways related to BC diagnosis.
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Affiliation(s)
- Liqing Yang
- Medical College of Soochow University, Suzhou 215123, P. R. China
| | - Ying Wang
- Medical College of Soochow University, Suzhou 215123, P. R. China
| | - Haishan Cai
- Medical College of Soochow University, Suzhou 215123, P. R. China
| | - Shuang Wang
- Medical College of Soochow University, Suzhou 215123, P. R. China
| | - Yueping Shen
- Department of Epidemiology and Biostatistics, School of Public Health, Medical College of Soochow University, 199 Renai Road, Suzhou 215123, P. R. China
| | - Chaofu Ke
- Department of Epidemiology and Biostatistics, School of Public Health, Medical College of Soochow University, 199 Renai Road, Suzhou 215123, P. R. China
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11
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Wang C, Zhou W, Liao X, Li W, Chen Z. Covalent immobilization of ionic liquid-based porous polymer onto poly(ether ether ketone) for stir bar sorptive extraction and its application in analysis of chlorophenoxy acid herbicides in soil. Talanta 2020; 208:120442. [DOI: 10.1016/j.talanta.2019.120442] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 09/14/2019] [Accepted: 10/03/2019] [Indexed: 02/06/2023]
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12
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Chen D, Wang Y, Mo M, Zhang J, Zhang Y, Xu Y, Liu SY, Chen J, Ma Y, Zhang L, Dai Z, Cai C, Zou X. Polymerization retardation isothermal amplification (PRIA): a strategy enables sensitively quantify genome-wide 5-methylcytosine oxides rapidly on handy instruments with nanoscale sample input. Nucleic Acids Res 2019; 47:e119. [PMID: 31418020 PMCID: PMC6821303 DOI: 10.1093/nar/gkz704] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Revised: 06/25/2019] [Accepted: 08/01/2019] [Indexed: 12/22/2022] Open
Abstract
The current methods for quantifying genome-wide 5-methylcytosine (5mC) oxides are still scarce, mostly restricted with two limitations: assay sensitivity is seriously compromised with cost, assay time and sample input; epigenetic information is irreproducible during polymerase chain reaction (PCR) amplification without bisulfite pretreatment. Here, we propose a novel Polymerization Retardation Isothermal Amplification (PRIA) strategy to directly amplify the minute differences between epigenetic bases and others by arranging DNA polymerase to repetitively pass large electron-withdrawing groups tagged 5mC-oxides. We demonstrate that low abundant 5-hydroxymethylcytosine (5hmC), 5-formylcytosine (5fC) and 5-carboxycytosine (5caC) in genomic DNA can be accurately quantified within 10 h with 100 ng sample input on a laboratory real-time quantitative PCR instrument, and even multiple samples can be analyzed simultaneously in microplates. The global levels of 5hmC and 5fC in mouse and human brain tissues, rat hippocampal neuronal tissue, mouse kidney tissue and mouse embryonic stem cells were quantified and the observations not only confirm the widespread presence of 5hmC and 5fC but also indicate their significant variation in different tissues and cells. The strategy is easily performed in almost all research and medical laboratories, and would provide the potential capability to other candidate modifications in nucleotides.
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Affiliation(s)
- Danping Chen
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Yang Wang
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Mingming Mo
- Guangdong Key Laboratory for the Research and Development of Natural Drugs, Guangdong Medical College, Zhanjiang, Guangdong 524023, China
| | - Junjie Zhang
- Guangdong Key Laboratory for the Research and Development of Natural Drugs, Guangdong Medical College, Zhanjiang, Guangdong 524023, China
| | - Yanfei Zhang
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Yuzhi Xu
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Si-Yang Liu
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Jun Chen
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Yingjun Ma
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Li Zhang
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Zong Dai
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Chun Cai
- Guangdong Key Laboratory for the Research and Development of Natural Drugs, Guangdong Medical College, Zhanjiang, Guangdong 524023, China
| | - Xiaoyong Zou
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
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13
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Affiliation(s)
- Frederik A. Hansen
- Department of Pharmacy, University of Oslo, P.O. Box 1068 Blindern, 0316 Oslo, Norway
| | - Stig Pedersen-Bjergaard
- Department of Pharmacy, University of Oslo, P.O. Box 1068 Blindern, 0316 Oslo, Norway
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
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14
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Guo M, Shao L, Du Y, Qian Z, Huang T, Tang D. Microporous polymer based on the new compound "bi-(4-vinyl phenylquinoline) amide" for enrichment and quantitative determination of lamotrigine in rat and human serum. Anal Bioanal Chem 2019; 411:3353-3360. [PMID: 30957206 DOI: 10.1007/s00216-019-01812-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 02/12/2019] [Accepted: 03/26/2019] [Indexed: 10/27/2022]
Abstract
Lamotrigine is one of the most widely used antiepileptic drugs in the treatment of epilepsy. This kind of drug needs to be used in the long term and should be quantitatively detected in the blood of patients to avoid drug toxicity caused by individual differences and environmental and pathological changes in the process of taking. The detection of antiepileptic drugs in human blood is challenging because of their low contents and the interference of complex matrices. Thus, the sample enrichment method has been commonly used to improve the sensitivity of detection. In this work, we have synthesized a new "bi-(4-vinyl phenylquinoline) amide" compound and used it as the monomer to produce the hyper-cross-linked microporous polymer for the enrichment of lamotrigine. This material has a high adsorption capacity, specificity, and linearity, which can improve the detection sensitivity of lamotrigine by high-performance liquid chromatography (HPLC). The mechanism of this phenomenon has also been investigated. Finally, we have developed the microporous polymer enrichment coupled with HPLC method for the quantitative determination of lamotrigine in rat and human serum samples. This method has excellent precision, accuracy, and recovery, meeting the test of biological sample. The low limit of quantitation was 0.625 μg/mL. Graphical abstract.
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Affiliation(s)
- Mengzhe Guo
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
| | - Lili Shao
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
| | - Yan Du
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
| | - Zengting Qian
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
| | - Tonghui Huang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
| | - Daoquan Tang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China.
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15
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Guo M, Liu D, Sha Q, Geng H, Liang J, Tang D. Succinic acid enhanced quantitative determination of blood modified nucleosides in the development of diabetic nephropathy based on hydrophilic interaction liquid chromatography mass spectrometry. J Pharm Biomed Anal 2019; 164:309-316. [DOI: 10.1016/j.jpba.2018.10.042] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 10/22/2018] [Accepted: 10/23/2018] [Indexed: 12/18/2022]
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16
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Lai W, Mo J, Yin J, Lyu C, Wang H. Profiling of epigenetic DNA modifications by advanced liquid chromatography-mass spectrometry technologies. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2018.10.031] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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17
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Sun H, Wang H, Bai W, Bao L, Lin J, Li Y. Sensitive electrogenerated chemiluminescence biosensing method for the determination of DNA hydroxymethylation based on Ru(bpy)32+-doped silica nanoparticles labeling and MoS2-poly(acrylic acid) nanosheets modified electrode. Talanta 2019; 191:350-356. [DOI: 10.1016/j.talanta.2018.08.070] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2018] [Revised: 08/19/2018] [Accepted: 08/27/2018] [Indexed: 12/11/2022]
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18
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Asenso J, Wang L, Du Y, Liu QH, Xu BJ, Guo MZ, Tang DQ. Advances in detection and quantification of methylcytosine and its derivatives. J Sep Sci 2018; 42:1105-1116. [PMID: 30575277 DOI: 10.1002/jssc.201801100] [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: 10/21/2018] [Revised: 11/21/2018] [Accepted: 12/16/2018] [Indexed: 11/08/2022]
Abstract
Methylation of the fifth carbon atom in cytosine is an epigenetic modification of deoxyribonucleic acid that plays important roles in numerous cellular processes and disease pathogenesis. Three additional states of cytosine, that is, 5-hydroxymethylcytosine, 5-formylcytosine and 5-carboxylcytosine, have been identified and associated with the diagnosis and/or prognosis of diseases. However, accurate measurement of those intermediates is a challenge since their global levels are relatively low. A number of innovative methods have been developed to detect and quantify these compounds in biological samples, such as blood, tissue and urine, etc. This review focuses on recent advancement in detection and quantification of four cytosine modifications, based on which, the development, diagnosis, and prognosis of diseases could be monitored through non-invasive procedures.
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Affiliation(s)
- James Asenso
- Key Laboratory of New Drug Research and Clinical Pharmacy of Jiangsu Province, School of Pharmacy, Xuzhou Medical University, Xuzhou, P. R. China
| | - Liang Wang
- Department of Bioinformatics, School of Medical Informatics, Xuzhou Medical University, Xuzhou, P. R. China
| | - Yan Du
- Key Laboratory of New Drug Research and Clinical Pharmacy of Jiangsu Province, School of Pharmacy, Xuzhou Medical University, Xuzhou, P. R. China.,Department of Pharmaceutical Analysis, School of Pharmacy, Xuzhou Medical University, Xuzhou, P. R. China
| | - Qing-Hua Liu
- Key Laboratory of New Drug Research and Clinical Pharmacy of Jiangsu Province, School of Pharmacy, Xuzhou Medical University, Xuzhou, P. R. China
| | - Bing-Ju Xu
- Key Laboratory of New Drug Research and Clinical Pharmacy of Jiangsu Province, School of Pharmacy, Xuzhou Medical University, Xuzhou, P. R. China
| | - Meng-Zhe Guo
- Key Laboratory of New Drug Research and Clinical Pharmacy of Jiangsu Province, School of Pharmacy, Xuzhou Medical University, Xuzhou, P. R. China.,Department of Pharmaceutical Analysis, School of Pharmacy, Xuzhou Medical University, Xuzhou, P. R. China
| | - Dao-Quan Tang
- Key Laboratory of New Drug Research and Clinical Pharmacy of Jiangsu Province, School of Pharmacy, Xuzhou Medical University, Xuzhou, P. R. China.,Department of Pharmaceutical Analysis, School of Pharmacy, Xuzhou Medical University, Xuzhou, P. R. China
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19
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Guo C, Xie C, Chen Q, Cao X, Guo M, Zheng S, Wang Y. A novel malic acid-enhanced method for the analysis of 5-methyl-2'-deoxycytidine, 5-hydroxymethyl-2'-deoxycytidine, 5-methylcytidine and 5-hydroxymethylcytidine in human urine using hydrophilic interaction liquid chromatography-tandem mass spectrometry. Anal Chim Acta 2018; 1034:110-118. [PMID: 30193624 DOI: 10.1016/j.aca.2018.06.081] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 06/29/2018] [Accepted: 06/30/2018] [Indexed: 12/30/2022]
Abstract
5-Methyl-2'-deoxycytidine (5-mdC), 5-hydroxymethyl-2'-deoxycytidine (5-hmdC), 5-methylcytidine (5-mrC) and 5-hydroxymethylcytidine (5-hmrC) are epigenetic marks of DNA and RNA, and aberrant levels of these modified nucleosides were found to be associated with various cancers. Urine is a preferred source of biological fluid for biomarker discovery because the sample collection process is not invasive to patients. Herein, we developed a novel malic acid-enhanced hydrophilic interaction liquid chromatography-tandem mass spectrometry (HILIC-MS/MS) method for sensitive and simultaneous quantification of the modified cytosine nucleosides in human urine. Malic acid markedly increased the detection sensitivities of all four cytosine nucleosides, with the limits of detection (LODs) for 5-mdC, 5-hmdC, 5-mrC and 5-hmrC being 0.025, 0.025, 0.025 and 0.050 fmol, respectively. By using this method, we demonstrated, for the first time, the presence of 5-hmrC in human urine, and we successfully quantified 5-mdC, 5-hmdC, 5-mrC and 5-hmrC in urine samples collected from 90 patients with colorectal cancer (CRC) and 90 healthy controls. We found that the levels of 5-mdC, 5-hmdC, 5-mrC and 5-hmrC in urine were all substantially decreased in CRC patients, suggesting that these modified nucleosides might have great potential to be noninvasive biomarkers for early detection and prognosis of CRC. Together, we established a novel and sensitive method for detecting 5-methylated and 5-hydroxymethylated cytosine nucleosides in human urine and the results from this study may stimulate future investigations about the regulatory roles of these cytosine derivatives in the initiation and development of CRC.
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Affiliation(s)
- Cheng Guo
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310009, China.
| | - Cong Xie
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310009, China; College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, China
| | - Qin Chen
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310009, China
| | - Xiaoji Cao
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, China
| | - Mengzhe Guo
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical College, Xuzhou, Jiangsu, 221004, China
| | - Shu Zheng
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310009, China
| | - Yinsheng Wang
- Department of Chemistry, University of California, Riverside, CA, 92521, United States.
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