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Zhong H, Liu S, Zhu J, Xu TH, Yu H, Wu L. Elucidating the role of blood metabolites on pancreatic cancer risk using two-sample Mendelian randomization analysis. Int J Cancer 2024; 154:852-862. [PMID: 37860916 PMCID: PMC10843029 DOI: 10.1002/ijc.34771] [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: 06/23/2023] [Revised: 09/12/2023] [Accepted: 10/02/2023] [Indexed: 10/21/2023]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is an uncommon but highly fatal malignancy. Identifying causal metabolite biomarkers offers an opportunity to facilitate effective risk assessment strategies for PDAC. In this study, we performed a two-sample Mendelian randomization (MR) study to characterize the potential causal effects of metabolites in plasma on PDAC risk. Genetic instruments were determined for a total of 506 metabolites from one set of comprehensive genome-wide association studies (GWAS) involving 913 individuals of European ancestry from the INTERVAL/EPIC-Norfolk cohorts. Another set of genetic instruments was developed for 483 metabolites from an independent GWAS conducted with 8299 individuals of European ancestry from the Canadian Longitudinal Study on Aging (CLSA) cohort. We analyzed GWAS data of the Pancreatic Cancer Cohort Consortium (PanScan) and the Pancreatic Cancer Case-Control Consortium (PanC4), comprising 8275 PDAC cases and 6723 controls of European ancestry. The association of metabolites with PDAC risk was assessed using the inverse-variance weighted (IVW) method, and complemented with sensitivity analyses of MR-Egger and MR-PRESSO tests. Potential side effects of targeting the identified metabolites for PDAC intervention were further evaluated by a phenome-wide MR (Phe-MR) analysis. Forty-four unique metabolites were identified to be significantly associated with PDAC risk, of which four top-ranking metabolites (X: 12798, X: 11787, X: 11308 and X: 19141) showed replication evidence when using instruments developed from both two cohorts. Our results highlight novel blood metabolites related to PDAC risk, which may help prioritize metabolic features for PDAC mechanistic research and further evaluation of their potential role in PDAC risk assessment.
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Affiliation(s)
- Hua Zhong
- Cancer Epidemiology Division, Population Sciences in the Pacific Program, University of Hawaii Cancer Center, University of Hawaii at Manoa, Honolulu, HI, USA
| | - Shuai Liu
- Cancer Epidemiology Division, Population Sciences in the Pacific Program, University of Hawaii Cancer Center, University of Hawaii at Manoa, Honolulu, HI, USA
| | - Jingjing Zhu
- Cancer Epidemiology Division, Population Sciences in the Pacific Program, University of Hawaii Cancer Center, University of Hawaii at Manoa, Honolulu, HI, USA
| | - Teddy H. Xu
- Torrey Pines High School, San Diego, CA, USA
| | - Herbert Yu
- Cancer Epidemiology Division, Population Sciences in the Pacific Program, University of Hawaii Cancer Center, University of Hawaii at Manoa, Honolulu, HI, USA
| | - Lang Wu
- Cancer Epidemiology Division, Population Sciences in the Pacific Program, University of Hawaii Cancer Center, University of Hawaii at Manoa, Honolulu, HI, USA
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2
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Activation of β-Adrenoceptors Promotes Lipid Droplet Accumulation in MCF-7 Breast Cancer Cells via cAMP/PKA/EPAC Pathways. Int J Mol Sci 2023; 24:ijms24010767. [PMID: 36614209 PMCID: PMC9820888 DOI: 10.3390/ijms24010767] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 12/23/2022] [Accepted: 12/28/2022] [Indexed: 01/04/2023] Open
Abstract
Physiologically, β-adrenoceptors are major regulators of lipid metabolism, which may be reflected in alterations in lipid droplet dynamics. β-adrenoceptors have also been shown to participate in breast cancer carcinogenesis. Since lipid droplets may be seen as a hallmark of cancer, the present study aimed to investigate the role of β-adrenoceptors in the regulation of lipid droplet dynamics in MCF-7 breast cancer cells. Cells were treated for up to 72 h with adrenaline (an endogenous adrenoceptor agonist), isoprenaline (a non-selective β-adrenoceptor agonist) and salbutamol (a selective β2-selective agonist), and their effects on lipid droplets were evaluated using Nile Red staining. Adrenaline or isoprenaline, but not salbutamol, caused a lipid-accumulating phenotype in the MCF-7 cells. These effects were significantly reduced by selective β1- and β3-antagonists (10 nM atenolol and 100 nM L-748,337, respectively), indicating a dependence on both β1- and β3-adrenoceptors. These effects were dependent on the cAMP signalling pathway, involving both protein kinase A (PKA) and cAMP-dependent guanine-nucleotide-exchange (EPAC) proteins: treatment with cAMP-elevating agents (forskolin or 8-Br-cAMP) induced lipid droplet accumulation, whereas either 1 µM H-89 or 1 µM ESI-09 (PKA or EPAC inhibitors, respectively) abrogated this effect. Taken together, the present results demonstrate the existence of a β-adrenoceptor-mediated regulation of lipid droplet dynamics in breast cancer cells, likely involving β1- and β3-adrenoceptors, revealing a new mechanism by which adrenergic stimulation may influence cancer cell metabolism.
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3
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Pan Y, Tang H, Li Q, Chen G, Li D. Exosomes and their roles in the chemoresistance of pancreatic cancer. Cancer Med 2022; 11:4979-4988. [PMID: 35587712 PMCID: PMC9761084 DOI: 10.1002/cam4.4830] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 04/26/2022] [Accepted: 05/04/2022] [Indexed: 02/03/2023] Open
Abstract
Pancreatic cancer (PC) remains one of the most lethal human malignancies worldwide. Due to the insidious onset and the rapid progression, most patients with PC are diagnosed at an advanced stage rendering them inoperable. Despite the development of multiple promising chemotherapeutic agents as recommended first-line treatment for PC, the therapeutic efficacy is largely limited by unwanted drug resistance. Recent studies have identified exosomes as essential mediators of intercellular communications during the occurrence of drug resistance. Understanding the underlying molecular mechanisms and complex signaling pathways of exosome-mediated drug resistance will contribute to the improvement of the design of new oncologic therapy regimens. This review focuses on the intrinsic connections between the chemoresistance of PC cells and exosomes in the tumor microenvironment (TME).
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Affiliation(s)
- Yubin Pan
- Department of Medical Oncology, Sir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouChina
| | - Honglin Tang
- Department of Medical Oncology, Sir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouChina
| | - Qijun Li
- Department of Medical Oncology, Sir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouChina
| | - Guangpeng Chen
- Department of Medical Oncology, Sir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouChina
| | - Da Li
- Department of Medical Oncology, Sir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouChina
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4
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Audet-Delage Y, Rouleau M, Villeneuve L, Guillemette C. The Glycosyltransferase Pathway: An Integrated Analysis of the Cell Metabolome. Metabolites 2022; 12:metabo12101006. [PMID: 36295907 PMCID: PMC9609030 DOI: 10.3390/metabo12101006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 10/18/2022] [Accepted: 10/19/2022] [Indexed: 11/18/2022] Open
Abstract
Nucleotide sugar-dependent glycosyltransferases (UGTs) are critical to the homeostasis of endogenous metabolites and the detoxification of xenobiotics. Their impact on the cell metabolome remains unknown. Cellular metabolic changes resulting from human UGT expression were profiled by untargeted metabolomics. The abundant UGT1A1 and UGT2B7 were studied as UGT prototypes along with their alternative (alt.) splicing-derived isoforms displaying structural differences. Nineteen biochemical routes were modified, beyond known UGT substrates. Significant variations in glycolysis and pyrimidine pathways, and precursors of the co-substrate UDP-glucuronic acid were observed. Bioactive lipids such as arachidonic acid and endocannabinoids were highly enriched by up to 13.3-fold (p < 0.01) in cells expressing the canonical enzymes. Alt. UGT2B7 induced drastic and unique metabolic perturbations, including higher glucose (18-fold) levels and tricarboxylic acid cycle (TCA) cycle metabolites and abrogated the effects of the UGT2B7 canonical enzyme when co-expressed. UGT1A1 proteins promoted the accumulation of branched-chain amino acids (BCAA) and TCA metabolites upstream of the mitochondrial oxoglutarate dehydrogenase complex (OGDC). Alt. UGT1A1 exacerbated these changes, likely through its interaction with the OGDC component oxoglutarate dehydrogenase-like (OGDHL). This study expands the breadth of biochemical pathways associated with UGT expression and establishes extensive connectivity between UGT enzymes, alt. proteins and other metabolic processes.
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Affiliation(s)
- Yannick Audet-Delage
- Centre Hospitalier Universitaire de Québec Research Center—Université Laval, Faculty of Pharmacy, and Université Laval Cancer Research Center (CRC), R4720, 2705 Blvd Laurier, Québec, QC G1V 4G2, Canada
| | - Michèle Rouleau
- Centre Hospitalier Universitaire de Québec Research Center—Université Laval, Faculty of Pharmacy, and Université Laval Cancer Research Center (CRC), R4720, 2705 Blvd Laurier, Québec, QC G1V 4G2, Canada
| | - Lyne Villeneuve
- Centre Hospitalier Universitaire de Québec Research Center—Université Laval, Faculty of Pharmacy, and Université Laval Cancer Research Center (CRC), R4720, 2705 Blvd Laurier, Québec, QC G1V 4G2, Canada
| | - Chantal Guillemette
- Centre Hospitalier Universitaire de Québec Research Center—Université Laval, Faculty of Pharmacy, and Université Laval Cancer Research Center (CRC), R4720, 2705 Blvd Laurier, Québec, QC G1V 4G2, Canada
- Canada Research Chair in Pharmacogenomics, Université Laval, Québec, QC G1V 4G2, Canada
- Correspondence: ; Tel.: +1-(418)-654-2296
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5
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Identification of UDP-Glucuronosyltransferase 2B15 (UGT2B15) as a Target for IGF1 and Insulin Action. Cells 2022; 11:cells11101627. [PMID: 35626664 PMCID: PMC9139319 DOI: 10.3390/cells11101627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 05/06/2022] [Accepted: 05/10/2022] [Indexed: 11/28/2022] Open
Abstract
Normal growth and development in mammals are tightly controlled by numerous genetic factors and metabolic conditions. The growth hormone (GH)-insulin-like growth factor-1 (IGF1) hormonal axis is a key player in the regulation of these processes. Dysregulation of the GH-IGF1 endocrine system is linked to a number of pathologies, ranging from growth deficits to cancer. Laron syndrome (LS) is a type of dwarfism that results from mutation of the GH receptor (GHR) gene, leading to GH resistance and short stature as well as a number of metabolic abnormalities. Of major clinical relevance, epidemiological studies have shown that LS patients do not develop cancer. While the mechanisms associated with cancer protection in LS have not yet been elucidated, genomic analyses have identified a series of metabolic genes that are over-represented in LS patients. We hypothesized that these genes might constitute novel targets for IGF1 action. With a fold-change of 11.09, UDP-glucuronosyltransferase 2B15 (UGT2B15) was the top up-regulated gene in LS. The UGT2B15 gene codes for an enzyme that converts xenobiotic substances into lipophilic compounds and thereby facilitates their clearance from the body. We investigated the regulation of UGT2B15 gene expression by IGF1 and insulin. Both hormones inhibited UGT2B15 mRNA levels in endometrial and breast cancer cell lines. Regulation of UGT2B15 protein levels by IGF1/insulin, however, was more complex and not always correlated with mRNA levels. Furthermore, UGT2B15 expression was dependent on p53 status. Thus, UGT2B15 mRNA levels were higher in cell lines expressing a wild-type p53 compared to cells containing a mutated p53. Animal studies confirmed an inverse correlation between UGT2B15 and p53 levels. In summary, increased UGT2B15 levels in LS might confer upon patient’s protection from genotoxic damage.
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Alblihy A, Shoqafi A, Toss MS, Algethami M, Harris AE, Jeyapalan JN, Abdel-Fatah T, Servante J, Chan SYT, Green A, Mongan NP, Rakha EA, Madhusudan S. Untangling the clinicopathological significance of MRE11-RAD50-NBS1 complex in sporadic breast cancers. NPJ Breast Cancer 2021; 7:143. [PMID: 34782604 PMCID: PMC8593132 DOI: 10.1038/s41523-021-00350-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 10/22/2021] [Indexed: 12/27/2022] Open
Abstract
The MRE11-RAD50-NBS1 (MRN) complex is critical for genomic stability. Although germline mutations in MRN may increase breast cancer susceptibility, such mutations are extremely rare. Here, we have conducted a comprehensive clinicopathological study of MRN in sporadic breast cancers. We have protein expression profiled for MRN and a panel of DNA repair factors involved in double-strand break repair (BRCA1, BRCA2, ATM, CHK2, ATR, Chk1, pChk1, RAD51, γH2AX, RPA1, RPA2, DNA-PKcs), RECQ DNA helicases (BLM, WRN, RECQ1, RECQL4, RECQ5), nucleotide excision repair (ERCC1) and base excision repair (SMUG1, APE1, FEN1, PARP1, XRCC1, Pol β) in 1650 clinical breast cancers. The prognostic significance of MRE11, RAD50 and NBS1 transcripts and their microRNA regulators (hsa-miR-494 and hsa-miR-99b) were evaluated in large clinical datasets. Expression of MRN components was analysed in The Cancer Genome Atlas breast cancer cohort. We show that low nuclear MRN is linked to aggressive histopathological phenotypes such as high tumour grade, high mitotic index, oestrogen receptor- and high-risk Nottingham Prognostic Index. In univariate analysis, low nuclear MRE11 and low nuclear RAD50 were associated with poor survival. In multivariate analysis, low nuclear RAD50 remained independently linked with adverse clinical outcomes. Low RAD50 transcripts were also linked with reduced survival. In contrast, overexpression of hsa-miR-494 and hsa-miR-99b microRNAs was associated with poor survival. We observed large-scale genome-wide alterations in MRN-deficient tumours contributing to aggressive behaviour. We conclude that MRN status may be a useful tool to stratify tumours for precision medicine strategies.
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Affiliation(s)
- Adel Alblihy
- Nottingham Biodiscovery Institute, School of Medicine, University of Nottingham, University Park, Nottingham, NG7 3RD, UK
- Medical Center, King Fahad Security College (KFSC), Riyadh, 11461, Saudi Arabia
| | - Ahmed Shoqafi
- Nottingham Biodiscovery Institute, School of Medicine, University of Nottingham, University Park, Nottingham, NG7 3RD, UK
| | - Michael S Toss
- Nottingham Biodiscovery Institute, School of Medicine, University of Nottingham, University Park, Nottingham, NG7 3RD, UK
- Department of Pathology, Nottingham University Hospitals, City Hospital Campus, Nottingham, NG5 1PB, UK
| | - Mashael Algethami
- Nottingham Biodiscovery Institute, School of Medicine, University of Nottingham, University Park, Nottingham, NG7 3RD, UK
| | - Anna E Harris
- Nottingham Biodiscovery Institute, School of Medicine, University of Nottingham, University Park, Nottingham, NG7 3RD, UK
| | - Jennie N Jeyapalan
- Nottingham Biodiscovery Institute, School of Medicine, University of Nottingham, University Park, Nottingham, NG7 3RD, UK
| | - Tarek Abdel-Fatah
- Department of Oncology, Nottingham University Hospitals, City Hospital Campus, Nottingham, NG5 1PB, UK
| | | | - Stephen Y T Chan
- Department of Oncology, Nottingham University Hospitals, City Hospital Campus, Nottingham, NG5 1PB, UK
| | - Andrew Green
- Nottingham Biodiscovery Institute, School of Medicine, University of Nottingham, University Park, Nottingham, NG7 3RD, UK
| | - Nigel P Mongan
- Nottingham Biodiscovery Institute, School of Medicine, University of Nottingham, University Park, Nottingham, NG7 3RD, UK
| | - Emad A Rakha
- Nottingham Biodiscovery Institute, School of Medicine, University of Nottingham, University Park, Nottingham, NG7 3RD, UK
- Department of Pathology, Nottingham University Hospitals, City Hospital Campus, Nottingham, NG5 1PB, UK
| | - Srinivasan Madhusudan
- Nottingham Biodiscovery Institute, School of Medicine, University of Nottingham, University Park, Nottingham, NG7 3RD, UK.
- Department of Oncology, Nottingham University Hospitals, City Hospital Campus, Nottingham, NG5 1PB, UK.
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7
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Boumelhem BB, Pilgrim C, Zwicker VE, Kolanowski JL, Yeo JH, Jolliffe KA, New EJ, Day ML, Assinder SJ, Fraser ST. Intracellular flow cytometric lipid analysis - a multiparametric system to assess distinct lipid classes in live cells. J Cell Sci 2021; 135:269116. [PMID: 34114626 DOI: 10.1242/jcs.258322] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 05/28/2021] [Indexed: 11/20/2022] Open
Abstract
The lipid content of mammalian cells varies greatly between cell type. Current methods for analysing lipid components of cells are technically challenging and destructive. Here, we report a facile, inexpensive method to identify lipid content - intracellular flow cytometric lipid analysis (IFCLA). Distinct lipid classes can be distinguished by Nile Blue fluorescence, Nile Red fluorescence or violet autofluorescence. Nile Blue is fluorescent in the presence of unsaturated fatty acids with a carbon chain length greater than 16. Cis-configured fatty acids induce greater Nile Blue fluorescence than their trans-configured counterparts. In contrast, Nile Red exhibits greatest fluorescence in the presence of cholesterol, cholesteryl esters, some triglycerides and phospholipids. Multiparametric spanning-tree progression analysis for density-normalized events (SPADE) analysis of hepatic cellular lipid distribution, including vitamin A autofluorescence, is presented. This flow cytometric system allows for the rapid, inexpensive and non-destructive identification of lipid content, and highlights the differences in lipid biology between cell types by imaging and flow cytometry.
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Affiliation(s)
- Badwi B Boumelhem
- Discipline of Physiology, School of Medical Sciences, University of Sydney, Camperdown, NSW, 2050, Australia
| | - Chelsea Pilgrim
- Discipline of Physiology, School of Medical Sciences, University of Sydney, Camperdown, NSW, 2050, Australia
| | - Vincent E Zwicker
- School of Chemistry, University of Sydney, Camperdown, NSW, 2050, Australia
| | - Jacek L Kolanowski
- School of Chemistry, University of Sydney, Camperdown, NSW, 2050, Australia
| | - Jia Hao Yeo
- Discipline of Anatomy and Histology, School of Medical Sciences, University of Sydney, Camperdown, NSW, 2050, Australia
| | - Katrina A Jolliffe
- School of Chemistry, University of Sydney, Camperdown, NSW, 2050, Australia.,University of Sydney Nano Institute, University of Sydney, Camperdown, NSW, 2006, Australia
| | - Elizabeth J New
- School of Chemistry, University of Sydney, Camperdown, NSW, 2050, Australia.,University of Sydney Nano Institute, University of Sydney, Camperdown, NSW, 2006, Australia
| | - Margot L Day
- Discipline of Physiology, School of Medical Sciences, University of Sydney, Camperdown, NSW, 2050, Australia
| | - Stephen J Assinder
- Discipline of Physiology, School of Medical Sciences, University of Sydney, Camperdown, NSW, 2050, Australia.,University of Sydney Nano Institute, University of Sydney, Camperdown, NSW, 2006, Australia
| | - Stuart T Fraser
- Discipline of Physiology, School of Medical Sciences, University of Sydney, Camperdown, NSW, 2050, Australia.,Discipline of Anatomy and Histology, School of Medical Sciences, University of Sydney, Camperdown, NSW, 2050, Australia.,University of Sydney Nano Institute, University of Sydney, Camperdown, NSW, 2006, Australia.,School of Biomedical Engineering, University of Camperdown, NSW, 2006, Australia
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8
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Sutliff AK, Shi J, Watson CJW, Hunt MS, Chen G, Zhu HJ, Lazarus P. Potential Regulation of UGT2B10 and UGT2B7 by miR-485-5p in Human Liver. Mol Pharmacol 2019; 96:674-682. [PMID: 31554697 PMCID: PMC6820218 DOI: 10.1124/mol.119.115881] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 09/19/2019] [Indexed: 11/22/2022] Open
Abstract
The UDP-glucuronosyltransferase (UGT) family of enzymes is important in the metabolic elimination of a variety of endogenous compounds such as bile acids, steroids, and fat-soluble vitamins, as well as exogenous compounds including many pharmaceuticals. The UGT2B subfamily is a major family of UGT enzymes expressed in human liver. The identification of novel mechanisms including post-transcriptional regulation by microRNA (miRNA) contributes to interindividual variability in UGT2B expression and is a crucial component in predicting patient drug response. In the present study, a high-resolution liquid chromatography-tandem mass spectrometry method was employed to measure UGT2B protein levels in a panel of human liver microsomal samples (n = 62). Concurrent in silico analysis identified eight candidate miRNAs as potential regulators of UGT2B enzymes. Comparison of UGT2B protein expression and candidate miRNA levels from human liver samples demonstrated a significant inverse correlation between UGT2B10 and UGT2B15 and one of these candidate miRNAs, miR-485-5p. A near-significant correlation was also observed between UGT2B7 and miR-485-5p expression. In vitro analysis using luciferase-containing vectors suggested an interaction of miR-485-5p within the UGT2B10 3'-untranslated region (UTR), and significant reduction in luciferase activity was also observed for a luciferase vector containing the UGT2B7 3'-UTR; however, none was observed for the UBT2B15 3'-UTR. UGT2B10 and UGT2B7 activities were probed using nicotine and 3'-azido-3'-deoxythymidine, respectively, and significant decreases in glucuronidation activity were observed for both substrates in HuH-7 and Hep3B cells upon overexpression of miR-485-5p mimic. This is the first study demonstrating a regulatory role of miR-485-5p for multiple UGT2B enzymes. SIGNIFICANCE STATEMENT: The purpose of this study was to identify novel epigenetic miRNA regulators of the UGT2B drug-metabolizing enzymes in healthy human liver samples. Our results indicate that miRNA 485-5p is a novel regulator of UGT2B7 and UGT2B10, which play an important role in the metabolism of many commonly prescribed medications, carcinogens, and endogenous compounds. This study identified potential miRNA-UGT2B mRNA interactions using a novel proteomic approach, with in vitro experiments undertaken to validate these interactions.
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Affiliation(s)
- Aimee K Sutliff
- Department of Pharmaceutical Sciences, Washington State University College of Pharmacy and Pharmaceutical Sciences, Spokane, Washington (A.K.S., C.J.W.W., M.H., G.C., P.L.); and Department of Clinical Pharmacy, University of Michigan College of Pharmacy, Ann Arbor, Michigan (J.S., H.-J.Z.)
| | - Jian Shi
- Department of Pharmaceutical Sciences, Washington State University College of Pharmacy and Pharmaceutical Sciences, Spokane, Washington (A.K.S., C.J.W.W., M.H., G.C., P.L.); and Department of Clinical Pharmacy, University of Michigan College of Pharmacy, Ann Arbor, Michigan (J.S., H.-J.Z.)
| | - Christy J W Watson
- Department of Pharmaceutical Sciences, Washington State University College of Pharmacy and Pharmaceutical Sciences, Spokane, Washington (A.K.S., C.J.W.W., M.H., G.C., P.L.); and Department of Clinical Pharmacy, University of Michigan College of Pharmacy, Ann Arbor, Michigan (J.S., H.-J.Z.)
| | - Martina S Hunt
- Department of Pharmaceutical Sciences, Washington State University College of Pharmacy and Pharmaceutical Sciences, Spokane, Washington (A.K.S., C.J.W.W., M.H., G.C., P.L.); and Department of Clinical Pharmacy, University of Michigan College of Pharmacy, Ann Arbor, Michigan (J.S., H.-J.Z.)
| | - Gang Chen
- Department of Pharmaceutical Sciences, Washington State University College of Pharmacy and Pharmaceutical Sciences, Spokane, Washington (A.K.S., C.J.W.W., M.H., G.C., P.L.); and Department of Clinical Pharmacy, University of Michigan College of Pharmacy, Ann Arbor, Michigan (J.S., H.-J.Z.)
| | - Hao-Jie Zhu
- Department of Pharmaceutical Sciences, Washington State University College of Pharmacy and Pharmaceutical Sciences, Spokane, Washington (A.K.S., C.J.W.W., M.H., G.C., P.L.); and Department of Clinical Pharmacy, University of Michigan College of Pharmacy, Ann Arbor, Michigan (J.S., H.-J.Z.)
| | - Philip Lazarus
- Department of Pharmaceutical Sciences, Washington State University College of Pharmacy and Pharmaceutical Sciences, Spokane, Washington (A.K.S., C.J.W.W., M.H., G.C., P.L.); and Department of Clinical Pharmacy, University of Michigan College of Pharmacy, Ann Arbor, Michigan (J.S., H.-J.Z.)
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9
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Mobini K, Banakar E, Tamaddon G, Mohammadi-Bardbori A. 6-Formylindolo[3,2-b]carbazole (FICZ) Enhances The Expression of Tumor Suppressor miRNAs, miR-22, miR-515-5p, and miR-124-3p in MCF-7 Cells. CELL JOURNAL 2019; 22:115-120. [PMID: 31606975 PMCID: PMC6791069 DOI: 10.22074/cellj.2020.6549] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Accepted: 02/21/2019] [Indexed: 11/22/2022]
Abstract
Objective microRNAs (miRNAs) play bifunctional roles in the initiation and progression of cancer, and recent evidence
has confirmed that unusual expression of miRNAs is required for the progress of breast cancer. The regulatory role of
aryl hydrocarbon receptor (AhR) and its endogenous ligand, 6-formylindolo[3,2-b]carbazole (FICZ) on the expression
of tumor suppressor miRNAs, miR-22, miR-515-5p and miR-124-3p, as well as their association with the estrogen
receptor alpha (ERα) were the aims of this study.
Materials and Methods In this experimental study, the expression levels of miR-22, miR-515-5p, miR-124-3p and
miR-382-5p in MCF-7 cells were determined using the quantificational real time polymerase chain reaction (qRT-PCR)
assay.
Results Our results revealed that miR-22, miR-515-5p, and miR-124-3p expressions were significantly increased in
cells transfected with ERα siRNA. Our data also showed that miR-22, miR 515-5p, and miR-124-3p expression levels
were significantly increased following FICZ treatment. Here, we found that AhR/ERα cross-talk plays a critical role in
the expression of miR-22, miR-515-5p and miR-124-3p in MCF-7 cells.
Conclusion Overall, our data demonstrated that FICZ, as an AhR agonist could induce the expression of tumor
suppressor miRNAs, miR-22, miR-515-5p, and miR-124-3p; thus, FICZ might be regarded as a potential therapeutic
agent for breast cancer treatment.
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Affiliation(s)
- Keivan Mobini
- Department of Pharmacology and Toxicology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Elham Banakar
- Department of Pharmacology and Toxicology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Gholamhossein Tamaddon
- Diagnostic Laboratory Sciences and Technology Research Center, School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Afshin Mohammadi-Bardbori
- Department of Pharmacology and Toxicology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran.ElectronicAddress:
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10
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Cox JA, Zwart EP, Luijten M, White PA. The development and prevalidation of an in vitro mutagenicity assay based on MutaMouse primary hepatocytes, Part I: Isolation, structural, genetic, and biochemical characterization. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2019; 60:331-347. [PMID: 30592088 PMCID: PMC6590113 DOI: 10.1002/em.22253] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 09/10/2018] [Accepted: 09/15/2018] [Indexed: 06/09/2023]
Abstract
To develop an improved in vitro mammalian cell gene mutation assay, it is imperative to address the known deficiencies associated with existing assays. Primary hepatocytes isolated from the MutaMouse are ideal for an in vitro gene mutation assay due to their metabolic competence, their "normal" karyotype (i.e., neither transformed nor immortalized), and the presence of the MutaMouse transgene for rapid and reliable mutation scoring. The cells were extensively characterized to confirm their utility. Freshly isolated cells were found to have a hepatocyte-like morphology, predominantly consisting of binucleated cells. These cells maintain hepatocyte-specific markers for up to 3 days in culture. Analyses revealed a normal murine hepatocyte karyotype with a modal ploidy number of 4n. Fluorescence in situ hybridization analysis confirmed the presence of the lambda shuttle vector on chromosome 3. The doubling time was determined to be 22.5 ± 3.3 h. Gene expression and enzymatic activity of key Phase I and Phase II metabolic enzymes were maintained for at least 8 and 24 h in culture, respectively. Exposure to β-naphthoflavone led to approximately 900- and 9-fold increases in Cyp1a1 and Cyp1a2 gene expression, respectively, and approximately twofold induction in cytochrome P450 (CYP) 1A1/1A2 activity. Exposure to phenobarbital resulted in an approximately twofold increase in CYP 2B6 enzyme activity. Following this characterization, it is evident that MutaMouse primary hepatocytes have considerable promise for in vitro mutagenicity assessment. The performance of these cells in an in vitro gene mutation assay is assessed in Part II. Environ. Mol. Mutagen. 60:331-347, 2019. © 2018 The Authors. Environmental and Molecular Mutagenesis published by Wiley Periodicals, Inc. on behalf of Environmental Mutagen Society.
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Affiliation(s)
- Julie A. Cox
- Environmental Health Science and Research Bureau, Health CanadaOttawaOntarioCanada
- Department of BiologyUniversity of OttawaOntarioCanada
| | - Edwin P. Zwart
- Centre for Health ProtectionNational Institute for Public Health and the Environment (RIVM)BilthovenThe Netherlands
| | - Mirjam Luijten
- Centre for Health ProtectionNational Institute for Public Health and the Environment (RIVM)BilthovenThe Netherlands
| | - Paul A. White
- Environmental Health Science and Research Bureau, Health CanadaOttawaOntarioCanada
- Department of BiologyUniversity of OttawaOntarioCanada
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11
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Synthesis of 8-hydroxyquinoline glycoconjugates and preliminary assay of their β1,4-GalT inhibitory and anti-cancer properties. Bioorg Chem 2019; 84:326-338. [DOI: 10.1016/j.bioorg.2018.11.047] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 11/22/2018] [Accepted: 11/24/2018] [Indexed: 12/21/2022]
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12
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Zhou X, Zhao Y, Wang J, Wang X, Chen C, Yin D, Zhao F, Yin J, Guo M, Zhang L, Du L, Zhang B, Yin X. Resveratrol represses estrogen-induced mammary carcinogenesis through NRF2-UGT1A8-estrogen metabolic axis activation. Biochem Pharmacol 2018; 155:252-263. [PMID: 30009768 DOI: 10.1016/j.bcp.2018.07.006] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 07/11/2018] [Indexed: 02/07/2023]
Abstract
Estrogen plays a pivotal role in the pathological development of breast cancer. Resveratrol has chemo-preventive effects against breast cancer, whereas, the mechanism of antitumor activities of resveratrol remains unanswered. In this study, we showed that estrogen homeostasis profile was disturbed in both breast cancer patients and in experimental breast cancer model rats, with carcinogenic catechol estrogens significantly accumulated in the mammary tissues. UDP-glucuronosyltransferase 1A8 (UGT1A8) is an important phase II drug-metabolizing enzymes which involved in the metabolism of catechol estrogens. Here we found that the mammary nuclear factor erythroid 2-related factor 2 (NRF2) - UGT1A8 signaling was down-regulated in breast cancer rats, whereas treatment with resveratrol could upregulate the expression of NRF2 and UGT1A8, accelerate metabolic elimination of catechol estrogens, inhibit estrogen-induced DNA damage and suppress the pathological development of breast cancer. In addition, luciferase reporter assay suggested that resveratrol activated the expression of UGT1A8 by up-regulating the transcriptional activity of NRF2. Small-interfering RNA-mediated silencing of NRF2 abolished resveratrol-mediated preventive effects indicated that the antitumor effect of resveratrol is based on NRF2-UGT1A8-estrogen metabolism axis. Taken together, we established the resveratrol regulating potential on estrogen homeostasis based on NRF2-UGT1A8 signaling pathway, and also provided a novel link between estrogen glucuronidation metabolism and breast cancer pathological development.
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Affiliation(s)
- Xueyan Zhou
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Yun Zhao
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Juan Wang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Xi Wang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Chunxia Chen
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Di Yin
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Feng Zhao
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Jiale Yin
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Meng Guo
- Department of Thyroid and Breast Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Longzhen Zhang
- Department of Oncology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Lei Du
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Bei Zhang
- Department of Obstetrics and Gynecology, Xuzhou Central Hospital, Xuzhou Clinical School of Xuzhou Medical University, Xuzhou, China.
| | - Xiaoxing Yin
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China.
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13
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Drug-drug interaction potential of antitumor acridine agent C-1748: The substrate of UDP-glucuronosyltransferases 2B7, 2B17 and the inhibitor of 1A9 and 2B7. Pharmacol Rep 2018; 70:972-980. [PMID: 30107347 DOI: 10.1016/j.pharep.2018.03.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 03/14/2018] [Accepted: 03/21/2018] [Indexed: 01/20/2023]
Abstract
BACKGROUND The compound 9-(2'-hydroxyethylamino)-4-methyl-1-nitroacridine (C-1748), the promising antitumor agent developed in our laboratory was determined to undergo phase I metabolic pathways. The present studies aimed to know its biotransformation with phase II enzymes - UDP-glucuronosyltransferases (UGTs) and its potential to be engaged in drug-drug interactions arising from the modulation of UGT activity. METHODS UGT-mediated transformations with rat liver (RLM), human liver (HLM), and human intestine (HIM) microsomes and with 10 recombinant human isoenzymes were investigated. Studies on the ability of C-1748 to inhibit UGT were performed with HLM, HT29 colorectal cancer cell homogenate and the selected recombinant UGT isoenzymes. The reactions were monitored using HPLC-UV/Vis method and the C-1748 metabolite structure was determined with ESI-TOF-MS/MS analysis. RESULTS Pseudo-molecular ion (m/z 474.1554) and the experiment with β-glucuronidase indicated that O-glucuronide of C-1748 was formed in the presence of microsomal fractions. This reaction was selectively catalyzed by UGT2B7 and 2B17. High inhibitory effect of C-1748 was shown towards isoenzyme UGT1A9 (IC50=39.7μM) and significant but low inhibitory potential was expressed in HT29 cell homogenate (IC50=84.5μM). The mixed-type inhibition mechanism (Ki=17.0μM;Ki'=81.0μM), induced by C-1748 was observed for recombinant UGT1A9 glucuronidation, whereas HT29 cell homogenate resulted in noncompetitive inhibition (Ki=94.6μM). CONCLUSIONS The observed UGT-mediated metabolism of C-1748 and its ability to inhibit UGT activity should be considered as the potency for drug resistance and drug-drug interactions in the prospective multidrug therapy.
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14
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Bejrowska A, Pawłowska M, Mróz A, Mazerska Z. Modulation of UDP-glucuronidation by acridinone antitumor agents C-1305 and C-1311 in HepG2 and HT29 cell lines, despite slight impact in noncellular systems. Pharmacol Rep 2017; 70:470-475. [PMID: 29649683 DOI: 10.1016/j.pharep.2017.11.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 09/26/2017] [Accepted: 11/21/2017] [Indexed: 12/16/2022]
Abstract
BACKGROUND Among the studied antitumor acridinone derivatives developed in our laboratory, 5-dimethylaminopropylamino-8-hydroxytriazoloacridinone (C-1305) and 5-diethylaminoethylamino-8-hydroxyimidazoacridinone (C-1311) exhibited cytotoxic and antitumor properties against several cancer types and were selected to be evaluated in preclinical and early-phase clinical trials. In the present work, we investigated the impact of C-1305 and C-1311 on UDP-glucuronosyltransferase (UGT) activity. METHODS Enzyme activity modulation was studied using HPLC by analyzing standard UGT substrate metabolism in the presence and absence of antitumor drugs. The investigations were performed in two model systems: (i) under noncellular conditions, including human liver microsomes (HLM) and recombinant UGT1A1, 1A9 and 1A10 isoenzymes and (ii) in tumor cells. RESULTS There was observed a slight impact of studied drugs on enzyme activity. Only UGT1A1 action was altered by both compounds. The modulatory effects of UGT activity in cellular systems depended on the tumor cell type. In the case of HepG2, C-1305 and C-1311 strongly induced UGT activity, particularly for C-1311, at concentrations significantly lower than the EC50. This effect contradicted irinotecan mediated UGT inhibition. HT29 colon tumor cells were less sensitive than HepG2 to enzyme modulation in the presence of the studied compounds, particularly C-1305, where enzymatic inhibition similar to that of irinotecan was observed. CONCLUSIONS The results demonstrated that UGT activity modulation should be expected in the case of antitumor therapy with C-1305 or/and C-1311. Analysis of the results indicated that these modulations would occur via cellular regulatory pathways not by direct drug-enzyme interactions.
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Affiliation(s)
- Anna Bejrowska
- Department of Pharmaceutical Technology and Biochemistry, Chemical Faculty, Gdańsk University of Technology, Gdańsk, Poland
| | - Monika Pawłowska
- Department of Pharmaceutical Technology and Biochemistry, Chemical Faculty, Gdańsk University of Technology, Gdańsk, Poland
| | - Anna Mróz
- Department of Pharmaceutical Technology and Biochemistry, Chemical Faculty, Gdańsk University of Technology, Gdańsk, Poland
| | - Zofia Mazerska
- Department of Pharmaceutical Technology and Biochemistry, Chemical Faculty, Gdańsk University of Technology, Gdańsk, Poland.
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15
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Rouleau M, Tourancheau A, Girard-Bock C, Villeneuve L, Vaucher J, Duperré AM, Audet-Delage Y, Gilbert I, Popa I, Droit A, Guillemette C. Divergent Expression and Metabolic Functions of Human Glucuronosyltransferases through Alternative Splicing. Cell Rep 2017; 17:114-124. [PMID: 27681425 DOI: 10.1016/j.celrep.2016.08.077] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 07/15/2016] [Accepted: 08/23/2016] [Indexed: 11/17/2022] Open
Abstract
Maintenance of cellular homeostasis and xenobiotic detoxification is mediated by 19 human UDP-glucuronosyltransferase enzymes (UGTs) encoded by ten genes that comprise the glucuronidation pathway. Deep RNA sequencing of major metabolic organs exposes a substantial expansion of the UGT transcriptome by alternative splicing, with variants representing 20% to 60% of canonical transcript expression. Nearly a fifth of expressed variants comprise in-frame sequences that may create distinct structural and functional features. Follow-up cell-based assays reveal biological functions for these alternative UGT proteins. Some isoforms were found to inhibit or induce inactivation of drugs and steroids in addition to perturbing global cell metabolism (energy, amino acids, nucleotides), cell adhesion, and proliferation. This work highlights the biological relevance of alternative UGT expression, which we propose increases protein diversity through the evolution of metabolic regulators from specific enzymes.
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Affiliation(s)
- Michèle Rouleau
- Pharmacogenomics Laboratory, Centre Hospitalier Universitaire de Québec Research Center, Québec, QC G1V 4G2, Canada; Faculty of Pharmacy, Laval University, Québec, QC G1V 0A6, Canada
| | - Alan Tourancheau
- Pharmacogenomics Laboratory, Centre Hospitalier Universitaire de Québec Research Center, Québec, QC G1V 4G2, Canada; Faculty of Pharmacy, Laval University, Québec, QC G1V 0A6, Canada
| | - Camille Girard-Bock
- Pharmacogenomics Laboratory, Centre Hospitalier Universitaire de Québec Research Center, Québec, QC G1V 4G2, Canada; Faculty of Pharmacy, Laval University, Québec, QC G1V 0A6, Canada
| | - Lyne Villeneuve
- Pharmacogenomics Laboratory, Centre Hospitalier Universitaire de Québec Research Center, Québec, QC G1V 4G2, Canada; Faculty of Pharmacy, Laval University, Québec, QC G1V 0A6, Canada
| | - Jonathan Vaucher
- Faculty of Medicine, Laval University, Québec, QC G1V 0A6, Canada
| | - Anne-Marie Duperré
- Pharmacogenomics Laboratory, Centre Hospitalier Universitaire de Québec Research Center, Québec, QC G1V 4G2, Canada; Faculty of Pharmacy, Laval University, Québec, QC G1V 0A6, Canada
| | - Yannick Audet-Delage
- Pharmacogenomics Laboratory, Centre Hospitalier Universitaire de Québec Research Center, Québec, QC G1V 4G2, Canada; Faculty of Pharmacy, Laval University, Québec, QC G1V 0A6, Canada
| | - Isabelle Gilbert
- Pharmacogenomics Laboratory, Centre Hospitalier Universitaire de Québec Research Center, Québec, QC G1V 4G2, Canada; Faculty of Pharmacy, Laval University, Québec, QC G1V 0A6, Canada
| | - Ion Popa
- Faculty of Medicine, Laval University, Québec, QC G1V 0A6, Canada
| | - Arnaud Droit
- Faculty of Medicine, Laval University, Québec, QC G1V 0A6, Canada
| | - Chantal Guillemette
- Pharmacogenomics Laboratory, Centre Hospitalier Universitaire de Québec Research Center, Québec, QC G1V 4G2, Canada; Faculty of Pharmacy, Laval University, Québec, QC G1V 0A6, Canada.
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16
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Chen JM, Xia YM, Zhang YD, Zhang TT, Peng QR, Fang Y. Influence of substrates on the in vitro kinetics of steviol glucuronidation and interaction between steviol glycosides metabolites and UGT2B7. Int J Food Sci Nutr 2017; 69:472-479. [DOI: 10.1080/09637486.2017.1373079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Jun-Ming Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- Key Laboratory of Synthetic and Biological Colloids (Ministry of Education), School of Chemical and Materials Engineering, Jiangnan University, Wuxi, China
| | - Yong-Mei Xia
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- Key Laboratory of Synthetic and Biological Colloids (Ministry of Education), School of Chemical and Materials Engineering, Jiangnan University, Wuxi, China
| | - Yan-Dong Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- Key Laboratory of Synthetic and Biological Colloids (Ministry of Education), School of Chemical and Materials Engineering, Jiangnan University, Wuxi, China
| | - Tong-Tong Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- Key Laboratory of Synthetic and Biological Colloids (Ministry of Education), School of Chemical and Materials Engineering, Jiangnan University, Wuxi, China
| | - Qing-Rui Peng
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- Key Laboratory of Synthetic and Biological Colloids (Ministry of Education), School of Chemical and Materials Engineering, Jiangnan University, Wuxi, China
| | - Yun Fang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- Key Laboratory of Synthetic and Biological Colloids (Ministry of Education), School of Chemical and Materials Engineering, Jiangnan University, Wuxi, China
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17
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Zhou X, Zheng Z, Xu C, Wang J, Min M, Zhao Y, Wang X, Gong Y, Yin J, Guo M, Guo D, Zheng J, Zhang B, Yin X. Disturbance of Mammary UDP-Glucuronosyltransferase Represses Estrogen Metabolism and Exacerbates Experimental Breast Cancer. J Pharm Sci 2017; 106:2152-2162. [PMID: 28479355 DOI: 10.1016/j.xphs.2017.04.073] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 04/20/2017] [Accepted: 04/26/2017] [Indexed: 02/01/2023]
Abstract
The progression of breast cancer is closely related to the levels of estrogens within the body. UDP-glucuronosyltransferase (UGT) is an important class of phase II metabolizing enzymes, playing a pivotal role in detoxifying steroid hormone. In the present study, we aim at uncovering the potential dysregulation pattern of UGT and its role in estrogen metabolism and in the pathogenesis of breast cancer. Female Sprague-Dawley rats were treated with 100 mg/kg dimethylbenz(a)anthracene (DMBA) to induce breast cancer. Our results showed that the expression and activity of UGT in mammary tissues were downregulated significantly in DMBA rats. Consistent with this, levels of estradiol, 4-hydroxylated estradiol, and 2-hydroxylated estradiol were increased in both mammary tissues and serum, supporting a notable accumulation of toxic estrogen species in the target tissue of breast cancer. In addition, we also observed the decreased cell migration, cell proliferation, and DNA damage in UGT-transfected MCF-7 cells, suggesting a protective role of UGT against estrogen-induced mammary carcinogenesis. Taken together, these results indicated that accumulation of estrogens induced by UGT deficiency is a critical factor to induce the development of breast cancer. UGT contributes to estrogen elimination, and its glucuronidation capacity influences the estrogen signaling pathway and the pathogenesis of breast cancer.
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Affiliation(s)
- Xueyan Zhou
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, People's Republic of China
| | - Ziqiang Zheng
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, People's Republic of China
| | - Chang Xu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, People's Republic of China
| | - Juan Wang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, People's Republic of China
| | - Mengjun Min
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, People's Republic of China
| | - Yun Zhao
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, People's Republic of China
| | - Xi Wang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, People's Republic of China
| | - Yinhan Gong
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, People's Republic of China
| | - Jiale Yin
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, People's Republic of China
| | - Meng Guo
- Department of Thyroid and Breast Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, People's Republic of China
| | - Dong Guo
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, People's Republic of China
| | - Junnian Zheng
- Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Xuzhou Medical University, Xuzhou, People's Republic of China
| | - Bei Zhang
- Department of Obstetrics and Gynecology, Xuzhou Central Hospital, Xuzhou Clinical School of Xuzhou Medical University, Xuzhou, People's Republic of China
| | - Xiaoxing Yin
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, People's Republic of China.
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18
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Rouleau M, Audet-Delage Y, Desjardins S, Rouleau M, Girard-Bock C, Guillemette C. Endogenous Protein Interactome of Human UDP-Glucuronosyltransferases Exposed by Untargeted Proteomics. Front Pharmacol 2017; 8:23. [PMID: 28217095 PMCID: PMC5290407 DOI: 10.3389/fphar.2017.00023] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Accepted: 01/12/2017] [Indexed: 01/19/2023] Open
Abstract
The conjugative metabolism mediated by UDP-glucuronosyltransferase enzymes (UGTs) significantly influences the bioavailability and biological responses of endogenous molecule substrates and xenobiotics including drugs. UGTs participate in the regulation of cellular homeostasis by limiting stress induced by toxic molecules, and by controlling hormonal signaling networks. Glucuronidation is highly regulated at genomic, transcriptional, post-transcriptional and post-translational levels. However, the UGT protein interaction network, which is likely to influence glucuronidation, has received little attention. We investigated the endogenous protein interactome of human UGT1A enzymes in main drug metabolizing non-malignant tissues where UGT expression is most prevalent, using an unbiased proteomics approach. Mass spectrometry analysis of affinity-purified UGT1A enzymes and associated protein complexes in liver, kidney and intestine tissues revealed an intricate interactome linking UGT1A enzymes to multiple metabolic pathways. Several proteins of pharmacological importance such as transferases (including UGT2 enzymes), transporters and dehydrogenases were identified, upholding a potential coordinated cellular response to small lipophilic molecules and drugs. Furthermore, a significant cluster of functionally related enzymes involved in fatty acid β-oxidation, as well as in the glycolysis and glycogenolysis pathways were enriched in UGT1A enzymes complexes. Several partnerships were confirmed by co-immunoprecipitations and co-localization by confocal microscopy. An enhanced accumulation of lipid droplets in a kidney cell model overexpressing the UGT1A9 enzyme supported the presence of a functional interplay. Our work provides unprecedented evidence for a functional interaction between glucuronidation and bioenergetic metabolism.
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Affiliation(s)
- Michèle Rouleau
- Pharmacogenomics Laboratory, Canada Research Chair in Pharmacogenomics, Faculty of Pharmacy, Centre Hospitalier Universitaire de Québec Research Center, Laval University Québec, QC, Canada
| | - Yannick Audet-Delage
- Pharmacogenomics Laboratory, Canada Research Chair in Pharmacogenomics, Faculty of Pharmacy, Centre Hospitalier Universitaire de Québec Research Center, Laval University Québec, QC, Canada
| | - Sylvie Desjardins
- Pharmacogenomics Laboratory, Canada Research Chair in Pharmacogenomics, Faculty of Pharmacy, Centre Hospitalier Universitaire de Québec Research Center, Laval University Québec, QC, Canada
| | - Mélanie Rouleau
- Pharmacogenomics Laboratory, Canada Research Chair in Pharmacogenomics, Faculty of Pharmacy, Centre Hospitalier Universitaire de Québec Research Center, Laval University Québec, QC, Canada
| | - Camille Girard-Bock
- Pharmacogenomics Laboratory, Canada Research Chair in Pharmacogenomics, Faculty of Pharmacy, Centre Hospitalier Universitaire de Québec Research Center, Laval University Québec, QC, Canada
| | - Chantal Guillemette
- Pharmacogenomics Laboratory, Canada Research Chair in Pharmacogenomics, Faculty of Pharmacy, Centre Hospitalier Universitaire de Québec Research Center, Laval University Québec, QC, Canada
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