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Simic P, Coric V, Pljesa I, Savic-Radojevic A, Zecevic N, Kocic J, Simic T, Pazin V, Pljesa-Ercegovac M. The Role of Glutathione Transferase Omega-Class Variant Alleles in Individual Susceptibility to Ovarian Cancer. Int J Mol Sci 2024; 25:4986. [PMID: 38732205 PMCID: PMC11084357 DOI: 10.3390/ijms25094986] [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: 03/01/2024] [Revised: 04/04/2024] [Accepted: 04/28/2024] [Indexed: 05/13/2024] Open
Abstract
The tumor microenvironment is affected by reactive oxygen species and has been suggested to have an important role in ovarian cancer (OC) tumorigenesis. The role of glutathione transferases (GSTs) in the maintenance of redox balance is considered as an important contributing factor in cancer, including OC. Furthermore, GSTs are mostly encoded by highly polymorphic genes, which further highlights their potential role in OC, known to originate from accumulated genetic changes. Since the potential relevance of genetic variations in omega-class GSTs (GSTO1 and GSTO2), with somewhat different activities such as thioltransferase and dehydroascorbate reductase activity, has not been clarified as yet in terms of susceptibility to OC, we aimed to investigate whether the presence of different GSTO1 and GSTO2 genetic variants, individually or combined, might represent determinants of risk for OC development. Genotyping was performed in 110 OC patients and 129 matched controls using a PCR-based assay for genotyping single nucleotide polymorphisms. The results of our study show that homozygous carriers of the GSTO2 variant G allele are at an increased risk of OC development in comparison to the carriers of the referent genotype (OR1 = 2.16, 95% CI: 0.88-5.26, p = 0.08; OR2 = 2.49, 95% CI: 0.93-6.61, p = 0.06). Furthermore, individuals with GST omega haplotype H2, meaning the concomitant presence of the GSTO1*A and GSTO2*G alleles, are more susceptible to OC development, while carriers of the H4 (*A*A) haplotype exhibited lower risk of OC when crude and adjusted haplotype analysis was performed (OR1 = 0.29; 95% CI: 0.12-0.70; p = 0.007 and OR2 = 0.27; 95% CI: 0.11-0.67; p = 0.0054). Overall, our results suggest that GSTO locus variants may confer OC risk.
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Affiliation(s)
- Petar Simic
- Obstetrics and Gynecology Clinic Narodni Front, 11000 Belgrade, Serbia; (P.S.)
| | - Vesna Coric
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
- Institute of Medical and Clinical Biochemistry, 11000 Belgrade, Serbia
- Center of Excellence for Redox Medicine, 11000 Belgrade, Serbia
| | - Igor Pljesa
- Gynecology and Obstetrics Centre Dr Dragiša Mišović, 11000 Belgrade, Serbia
| | - Ana Savic-Radojevic
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
- Institute of Medical and Clinical Biochemistry, 11000 Belgrade, Serbia
- Center of Excellence for Redox Medicine, 11000 Belgrade, Serbia
| | - Nebojsa Zecevic
- Obstetrics and Gynecology Clinic Narodni Front, 11000 Belgrade, Serbia; (P.S.)
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
| | - Jovana Kocic
- Obstetrics and Gynecology Clinic Narodni Front, 11000 Belgrade, Serbia; (P.S.)
| | - Tatjana Simic
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
- Institute of Medical and Clinical Biochemistry, 11000 Belgrade, Serbia
- Center of Excellence for Redox Medicine, 11000 Belgrade, Serbia
- Serbian Academy of Sciences and Arts, 11000 Belgrade, Serbia
| | - Vladimir Pazin
- Obstetrics and Gynecology Clinic Narodni Front, 11000 Belgrade, Serbia; (P.S.)
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
| | - Marija Pljesa-Ercegovac
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
- Institute of Medical and Clinical Biochemistry, 11000 Belgrade, Serbia
- Center of Excellence for Redox Medicine, 11000 Belgrade, Serbia
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Petrovic M, Simic T, Djukic T, Radic T, Savic-Radojevic A, Zekovic M, Durutovic O, Janicic A, Milojevic B, Kajmakovic B, Zivkovic M, Bojanic N, Bumbasirevic U, Coric V. The Polymorphisms in GSTO Genes ( GSTO1 rs4925, GSTO2 rs156697, and GSTO2 rs2297235) Affect the Risk for Testicular Germ Cell Tumor Development: A Pilot Study. Life (Basel) 2023; 13:1269. [PMID: 37374052 DOI: 10.3390/life13061269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 04/24/2023] [Accepted: 05/25/2023] [Indexed: 06/29/2023] Open
Abstract
Members of the omega class of glutathione transferases (GSTs), GSTO1, and GSTO2, catalyze a range of reduction reactions as a part of the antioxidant defense system. Polymorphisms of genes encoding antioxidant proteins and the resultant altered redox profile have already been associated with the increased risk for testicular germ cell cancer (GCT) development. The aim of this pilot study was to assess the individual, combined, haplotype, and cumulative effect of GSTO1rs4925, GSTO2rs156697, and GSTO2rs2297235 polymorphisms with the risk for testicular GCT development, in 88 patients and 96 matched controls, through logistic regression models. We found that carriers of the GSTO1*C/A*C/C genotype exhibited an increased risk for testicular GCT development. Significant association with increased risk of testicular GCT was observed in carriers of GSTO2rs2297235*A/G*G/G genotype, and in carriers of combined GSTO2rs156697*A/G*G/G and GSTO2rs2297235*A/G*G/G genotypes. Haplotype H7 (GSTO1rs4925*C/GSTO2rs2297235*G/GSTO2rs156697*G) exhibited higher risk of testicular GCT, however, without significant association (p > 0.05). Finally, 51% of testicular GCT patients were the carriers of all three risk-associated genotypes, with 2.5-fold increased cumulative risk. In conclusion, the results of this pilot study suggest that GSTO polymorphisms might affect the protective antioxidant activity of GSTO isoenzymes, therefore predisposing susceptible individuals toward higher risk for testicular GCT development.
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Affiliation(s)
- Milos Petrovic
- Clinic of Urology, University Clinical Center of Serbia, 11000 Belgrade, Serbia
| | - Tatjana Simic
- Institute of Medical and Clinical Biochemistry, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
- Department of Medical Sciences, Serbian Academy of Sciences and Arts, 11000 Belgrade, Serbia
| | - Tatjana Djukic
- Institute of Medical and Clinical Biochemistry, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
| | - Tanja Radic
- Institute of Mental Health, 11000 Belgrade, Serbia
| | - Ana Savic-Radojevic
- Institute of Medical and Clinical Biochemistry, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
| | - Milica Zekovic
- Centre of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, National Institute of Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia
| | - Otas Durutovic
- Clinic of Urology, University Clinical Center of Serbia, 11000 Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
| | - Aleksandar Janicic
- Clinic of Urology, University Clinical Center of Serbia, 11000 Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
| | - Bogomir Milojevic
- Clinic of Urology, University Clinical Center of Serbia, 11000 Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
| | - Boris Kajmakovic
- Clinic of Urology, University Clinical Center of Serbia, 11000 Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
| | - Marko Zivkovic
- Clinic of Urology, University Clinical Center of Serbia, 11000 Belgrade, Serbia
| | - Nebojsa Bojanic
- Clinic of Urology, University Clinical Center of Serbia, 11000 Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
| | - Uros Bumbasirevic
- Clinic of Urology, University Clinical Center of Serbia, 11000 Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
| | - Vesna Coric
- Institute of Medical and Clinical Biochemistry, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
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The Upregulation of GSTO2 is Associated with Colon Cancer Progression and a Poor Prognosis. JOURNAL OF ONCOLOGY 2023; 2023:4931650. [PMID: 36688005 PMCID: PMC9848813 DOI: 10.1155/2023/4931650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 12/15/2022] [Accepted: 12/16/2022] [Indexed: 01/13/2023]
Abstract
Colorectal cancer is the second-leading cause of cancer-related mortality in the United States. Glutathione S-transferase can affect the development of cancer. Glutathione S-transferase omega 2, a member of the GST family, plays an important role in many tumors. However, the role of Glutathione S-transferase omega 2 in the development of colon cancer remains unclear. Herein, our study aimed to investigate the exact role of Glutathione S-transferase omega 2 in colon cancer. We used RNA sequencing data from The Cancer Genome Atlas and the Genotype-Tissue Expression database to analyze Glutathione S-transferase omega 2 expressions. Then, we explore the protein information of Glutathione S-transferase omega 2 in the Human Protein Atlas, GeneCards, and String database. In addition, western blot and immunohistochemistry were performed to evaluate the protein levels of Glutathione S-transferase omega 2 in colon cancer tissues. We acquire data from the Gene Expression Omnibus and The Cancer Genome Atlas databases. Also, we performed relevant prognostic analyses of these data. In addition, we performed a statistical analysis of the clinical data from The Cancer Genome Atlas database and the expression level of Glutathione S-transferase omega 2. Then, we performed Cox regression analysis and found independent risk factors for prognosis in patients with colon cancer. The Kyoto Encyclopedia of Genes and Genomes and Gene Ontology enrichment analyses were used to explore the potential biological functions of Glutathione S-transferase omega 2. The infiltration of colon cancer-immune cells was evaluated by the CIBERSORT method. RNA silencing was performed using siRNA constructs in HCT-116 and HT-29 cell lines. Cell Counting Kit-8 and EdU assays were performed to determine cell proliferation. Transwell experiments and scratch tests were used to determine cell migration. As for the mRNA and protein expression levels of cells, we used quantitative real-time PCR and western blot to detect them. Our research shows that Glutathione S-transferase omega 2 is overexpressed in colon cancer patients, and this overexpression is associated with a poor prognosis. The high expression of Glutathione S-transferase omega 2 is significantly correlated stage with stage, M, and N classification progression in colon cancer by statistical analysis. Univariate and multivariate Cox regression analyses showed that Glutathione S-transferase omega 2 was an independent risk factor for poor prognosis in colon cancer. In addition, we also found that Glutathione S-transferase omega 2 expression levels can affect the immune microenvironment of colon cancer cells. Gene silencing of Glutathione S-transferase omega 2 in HT-29 and HCT-116 cells significantly inhibited tumor growth and migration. In summary, we found that Glutathione S-transferase omega 2 can be used as a molecular indicator of colon cancer prognosis. In vitro, gene silencing of Glutathione S-transferase omega 2 inhibited colon cancer cells' growth and migration.
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Djukic T, Stevanovic G, Coric V, Bukumiric Z, Pljesa-Ercegovac M, Matic M, Jerotic D, Todorovic N, Asanin M, Ercegovac M, Ranin J, Milosevic I, Savic-Radojevic A, Simic T. GSTO1, GSTO2 and ACE2 Polymorphisms Modify Susceptibility to Developing COVID-19. J Pers Med 2022; 12:jpm12030458. [PMID: 35330457 PMCID: PMC8955736 DOI: 10.3390/jpm12030458] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 02/28/2022] [Accepted: 03/05/2022] [Indexed: 01/27/2023] Open
Abstract
Based on the close relationship between dysregulation of redox homeostasis and immune response in SARS-CoV-2 infection, we proposed a possible modifying role of ACE2 and glutathione transferase omega (GSTO) polymorphisms in the individual propensity towards the development of clinical manifestations in COVID-19. The distribution of polymorphisms in ACE2 (rs4646116), GSTO1 (rs4925) and GSTO2 (rs156697) were assessed in 255 COVID-19 patients and 236 matched healthy individuals, emphasizing their individual and haplotype effects on disease development and severity. Polymorphisms were determined by the appropriate qPCR method. The data obtained showed that individuals carrying variant GSTO1*AA and variant GSTO2*GG genotypes exhibit higher odds of COVID-19 development, contrary to ones carrying referent alleles (p = 0.044, p = 0.002, respectively). These findings are confirmed by haplotype analysis. Carriers of H2 haplotype, comprising GSTO1*A and GSTO2*G variant alleles were at 2-fold increased risk of COVID-19 development (p = 0.002). Although ACE2 (rs4646116) polymorphism did not exhibit a statistically significant effect on COVID-19 risk (p = 0.100), the risk of COVID-19 development gradually increased with the presence of each additional risk-associated genotype. Further studies are needed to clarify the specific roles of glutathione transferases omega in innate immune response and vitamin C homeostasis once the SARS-CoV-2 infection is initiated in the host cell.
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Affiliation(s)
- Tatjana Djukic
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (T.D.); (G.S.); (V.C.); (Z.B.); (M.P.-E.); (M.M.); (D.J.); (M.A.); (M.E.); (J.R.); (I.M.)
- Institute of Medical and Clinical Biochemistry, 11000 Belgrade, Serbia
| | - Goran Stevanovic
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (T.D.); (G.S.); (V.C.); (Z.B.); (M.P.-E.); (M.M.); (D.J.); (M.A.); (M.E.); (J.R.); (I.M.)
- Clinic of Infectious and Tropical Diseases, Clinical Centre of Serbia, 11000 Belgrade, Serbia;
| | - Vesna Coric
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (T.D.); (G.S.); (V.C.); (Z.B.); (M.P.-E.); (M.M.); (D.J.); (M.A.); (M.E.); (J.R.); (I.M.)
- Institute of Medical and Clinical Biochemistry, 11000 Belgrade, Serbia
| | - Zoran Bukumiric
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (T.D.); (G.S.); (V.C.); (Z.B.); (M.P.-E.); (M.M.); (D.J.); (M.A.); (M.E.); (J.R.); (I.M.)
- Institute of Medical Statistics and Informatics, 11000 Belgrade, Serbia
| | - Marija Pljesa-Ercegovac
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (T.D.); (G.S.); (V.C.); (Z.B.); (M.P.-E.); (M.M.); (D.J.); (M.A.); (M.E.); (J.R.); (I.M.)
- Institute of Medical and Clinical Biochemistry, 11000 Belgrade, Serbia
| | - Marija Matic
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (T.D.); (G.S.); (V.C.); (Z.B.); (M.P.-E.); (M.M.); (D.J.); (M.A.); (M.E.); (J.R.); (I.M.)
- Institute of Medical and Clinical Biochemistry, 11000 Belgrade, Serbia
| | - Djurdja Jerotic
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (T.D.); (G.S.); (V.C.); (Z.B.); (M.P.-E.); (M.M.); (D.J.); (M.A.); (M.E.); (J.R.); (I.M.)
- Institute of Medical and Clinical Biochemistry, 11000 Belgrade, Serbia
| | - Nevena Todorovic
- Clinic of Infectious and Tropical Diseases, Clinical Centre of Serbia, 11000 Belgrade, Serbia;
| | - Milika Asanin
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (T.D.); (G.S.); (V.C.); (Z.B.); (M.P.-E.); (M.M.); (D.J.); (M.A.); (M.E.); (J.R.); (I.M.)
- Clinic of Neurology, Clinical Centre of Serbia, 11000 Belgrade, Serbia
| | - Marko Ercegovac
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (T.D.); (G.S.); (V.C.); (Z.B.); (M.P.-E.); (M.M.); (D.J.); (M.A.); (M.E.); (J.R.); (I.M.)
- Clinic of Cardiology, Clinical Centre of Serbia, 11000 Belgrade, Serbia
| | - Jovan Ranin
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (T.D.); (G.S.); (V.C.); (Z.B.); (M.P.-E.); (M.M.); (D.J.); (M.A.); (M.E.); (J.R.); (I.M.)
- Clinic of Infectious and Tropical Diseases, Clinical Centre of Serbia, 11000 Belgrade, Serbia;
| | - Ivana Milosevic
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (T.D.); (G.S.); (V.C.); (Z.B.); (M.P.-E.); (M.M.); (D.J.); (M.A.); (M.E.); (J.R.); (I.M.)
- Clinic of Infectious and Tropical Diseases, Clinical Centre of Serbia, 11000 Belgrade, Serbia;
| | - Ana Savic-Radojevic
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (T.D.); (G.S.); (V.C.); (Z.B.); (M.P.-E.); (M.M.); (D.J.); (M.A.); (M.E.); (J.R.); (I.M.)
- Institute of Medical and Clinical Biochemistry, 11000 Belgrade, Serbia
- Correspondence: (A.S.-R.); (T.S.); Tel.: +381-113-636-271 (A.S.-R.); +381-113-636-250 (T.S.)
| | - Tatjana Simic
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (T.D.); (G.S.); (V.C.); (Z.B.); (M.P.-E.); (M.M.); (D.J.); (M.A.); (M.E.); (J.R.); (I.M.)
- Institute of Medical and Clinical Biochemistry, 11000 Belgrade, Serbia
- Department of Medical Sciences, Serbian Academy of Sciences and Arts, 11000 Belgrade, Serbia
- Correspondence: (A.S.-R.); (T.S.); Tel.: +381-113-636-271 (A.S.-R.); +381-113-636-250 (T.S.)
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Lin CY, Weng HY, Tai TY, Wu HC, Chen WC, Chen CH, Huang CY, Lo CW, Yu CC, Tsai CY, Wu WC, Jiang YH, Lee YK, Hsueh TY, Chiu AW, Chiang BJ, Huang HC, Chen IHA, Chen YT, Lin WY, Wu CC, Tsai YC, Lee HY, Li WM. Clinical Efficacy of Adjuvant Chemotherapy in Advanced Upper Tract Urothelial Carcinoma (pT3-T4): Real-World Data from the Taiwan Upper Tract Urothelial Carcinoma Collaboration Group. J Pers Med 2022; 12:jpm12020226. [PMID: 35207714 PMCID: PMC8877034 DOI: 10.3390/jpm12020226] [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: 11/20/2021] [Revised: 01/09/2022] [Accepted: 01/28/2022] [Indexed: 02/01/2023] Open
Abstract
The clinical efficacy of adjuvant chemotherapy in upper tract urothelial carcinoma (UTUC) is unclear. We aimed to assess the therapeutic outcomes of adjuvant chemotherapy in patients with advanced UTUC (pT3-T4) after radical nephroureterectomy (RNU). We retrospectively reviewed the data of 2108 patients from the Taiwan UTUC Collaboration Group between 1988 and 2018. Comprehensive clinical features, pathological characteristics, and survival outcomes were recorded. Univariate and multivariate Cox proportional hazards models were used to evaluate overall survival (OS), cancer-specific survival (CSS), and disease-free survival (DFS). Of the 533 patients with advanced UTUC included, 161 (30.2%) received adjuvant chemotherapy. In the multivariate analysis, adjuvant chemotherapy was significantly associated with a reduced risk of overall death (hazard ratio (HR), 0.599; 95% confidence interval (CI), 0.419–0.857; p = 0.005), cancer-specific mortality (HR, 0.598; 95% CI, 0.391–0.914; p = 0.018), and cancer recurrence (HR, 0.456; 95% CI, 0.310–0.673; p < 0.001). The Kaplan–Meier survival analysis revealed that patients receiving adjuvant chemotherapy had significantly better five-year OS (64% vs. 50%, p = 0.002), CSS (70% vs. 62%, p = 0.043), and DFS (60% vs. 48%, p = 0.002) rates compared to those who did not receive adjuvant chemotherapy. In conclusion, adjuvant chemotherapy after RNU had significant therapeutic benefits on OS, CSS, and DFS in advanced UTUC.
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Affiliation(s)
- Chung-Yu Lin
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; (C.-Y.L.); (H.-Y.L.)
| | - Han-Yu Weng
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan; (H.-Y.W.); (T.-Y.T.)
| | - Ta-Yao Tai
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan; (H.-Y.W.); (T.-Y.T.)
| | - Hsi-Chin Wu
- Department of Urology, China Medical University Hospital, Taichung 404, Taiwan; (H.-C.W.); (W.-C.C.)
- School of Medicine, China Medical University, Taichung 404, Taiwan
- Department of Urology, China Medical University Beigang Hospital, Yunlin 651, Taiwan
| | - Wen-Chi Chen
- Department of Urology, China Medical University Hospital, Taichung 404, Taiwan; (H.-C.W.); (W.-C.C.)
- Graduate Institute of Integrated Medicine, College of Chinese Medicine, China Medical University, Taichung 404, Taiwan
| | - Chung-Hsin Chen
- Department of Urology, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei 100, Taiwan; (C.-H.C.); (C.-Y.H.)
| | - Chao-Yuan Huang
- Department of Urology, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei 100, Taiwan; (C.-H.C.); (C.-Y.H.)
| | - Chi-Wen Lo
- Division of Urology, Department of Surgery, Taipei Tzu Chi Hospital, The Buddhist Medical Foundation, New Taipei City 231, Taiwan; (C.-W.L.); (C.-C.Y.)
| | - Chih-Chin Yu
- Division of Urology, Department of Surgery, Taipei Tzu Chi Hospital, The Buddhist Medical Foundation, New Taipei City 231, Taiwan; (C.-W.L.); (C.-C.Y.)
- School of Medicine, Buddhist Tzu Chi University, Hualien 970, Taiwan
| | - Chung-You Tsai
- Division of Urology, Department of Surgery, Far Eastern Memorial Hospital, New Taipei City 220, Taiwan; (C.-Y.T.); (W.-C.W.)
- Department of Healthcare Information and Management, Ming Chuan University, Taipei 111, Taiwan
| | - Wei-Che Wu
- Division of Urology, Department of Surgery, Far Eastern Memorial Hospital, New Taipei City 220, Taiwan; (C.-Y.T.); (W.-C.W.)
- Institute of Biomedical Engineering, National Taiwan University, Taipei 106, Taiwan
| | - Yuan-Hong Jiang
- Department of Urology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation and Tzu Chi University, Hualien 970, Taiwan; (Y.-H.J.); (Y.-K.L.)
| | - Yu-Khun Lee
- Department of Urology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation and Tzu Chi University, Hualien 970, Taiwan; (Y.-H.J.); (Y.-K.L.)
| | - Thomas Y. Hsueh
- Division of Urology, Department of Surgery, Taipei City Hospital Renai Branch, Taipei 106, Taiwan;
- Department of Urology, School of Medicine, National Yang Ming Chiao Tung University, Taipei 112, Taiwan
| | - Allen W. Chiu
- College of Medicine, National Yang Ming Chiao Tung University, Taipei 112, Taiwan;
| | - Bing-Juin Chiang
- College of Medicine, Fu-Jen Catholic University, New Taipei City 242, Taiwan;
- Division of Urology, Department of Surgery, Cardinal Tien Hospital, New Taipei City 231, Taiwan;
- Department of Life Science, College of Science, National Taiwan Normal University, Taipei 116, Taiwan
| | - Hsu-Che Huang
- Division of Urology, Department of Surgery, Cardinal Tien Hospital, New Taipei City 231, Taiwan;
- Department of Life Science, College of Science, National Taiwan Normal University, Taipei 116, Taiwan
| | - I-Hsuan Alan Chen
- Division of Urology, Department of Surgery, Kaohsiung Veterans General Hospital, Kaohsiung 813, Taiwan;
| | - Yung-Tai Chen
- Department of Urology, Taiwan Adventist Hospital, Taipei 105, Taiwan;
| | - Wei-Yu Lin
- Division of Urology, Department of Surgery, Chang Gung Memorial Hospital, Chia-Yi 613, Taiwan;
- Chang Gung University of Science and Technology, Chia-Yi 613, Taiwan
- Department of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Chia-Chang Wu
- Department of Urology, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235, Taiwan;
- Department of Urology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan;
- TMU Research Center of Urology and Kidney (TMU-RCUK), Taipei Medical University, Taipei 110, Taiwan
| | - Yao-Chou Tsai
- Department of Urology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan;
- Department of Urology, Taipei Medical University Hospital, Taipei Medical University, Taipei 110, Taiwan
| | - Hsiang-Ying Lee
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; (C.-Y.L.); (H.-Y.L.)
- Department of Urology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Wei-Ming Li
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; (C.-Y.L.); (H.-Y.L.)
- Department of Urology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Center for Liquid Biopsy and Cohort Research, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Urology, Ministry of Health and Welfare, Pingtung Hospital, Pingtung 900, Taiwan
- Correspondence:
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Liao PJ, Hsu KH, Chiou HY, Chen CJ, Lee CH. Joint effects of genomic markers and urinary methylation capacity associated with inorganic arsenic metabolism on the occurrence of cancers among residents in arseniasis-endemic areas: A cohort subset with average fifteen-year follow-up. Biomed J 2020; 44:S218-S225. [PMID: 35297370 PMCID: PMC9068568 DOI: 10.1016/j.bj.2020.10.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 09/11/2020] [Accepted: 10/11/2020] [Indexed: 11/30/2022] Open
Abstract
Background Chronic exposure to inorganic arsenic results in many cancers in susceptible persons. The metabolism of inorganic arsenic and genomic susceptibility are thought to be associated with cancer occurrence. Methods This study aims to examine the interaction of genomic susceptibility markers and urinary methylation capacity indicators involved in inorganic arsenic metabolism with all-cancer occurrence. This study conducted a follow-up on 96 residents to determine their urinary inorganic arsenic metabolites and genomic assay from an arseniasis area. Among them, 24 cancer developed. Multivariable Cox proportional hazards model was used to determine and estimate the candidate independent variables for cancer development. Results The residents with high inorganic arsenic exposure, high primary methylation index (PMI; MMA/InAs) (but lower secondary methylation index (SMI)), and non-heterogeneity type of genomic markers, including GSTO1, AS3MT, and MPO, tend to develop cancers. Subjects with higher PMI are at higher risk of developing cancers (HR = 1.66; 95% CI = 1.30–2.12). Cancer occurrence was greater among the CC type of GSTO1 (HR = 3.33; 95% CI = 1.11–10.00), CC type of AS3MT (HR = 19.21; 95% CI = 1.16–318.80), and AA type of MPO (HR = 13.40; 95% CI = 1.26–142.40). After adjusting confounders, a mutually moderating effect was revealed between genomic markers and methylation capacity on cancer occurrence. Conclusions This study found the hypermethylation responses to inorganic arsenic exposure and an array of genomic markers may increase the susceptibility of a wide range of organ cancers. The findings indicated a high-risk arsenic-exposed population to develop cancers. The phenotype of arsenic metabolism and genomic polymorphism suggested a potential preventive strategy for arsenic carcinogenesis.
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Affiliation(s)
- Pei-Ju Liao
- Department of Health Care Administration, Oriental Institute of Technology, New Taipei City, Taiwan
| | - Kuang-Hung Hsu
- Healthy Aging Research Center, Chang Gung University, Taoyuan, Taiwan; Laboratory for Epidemiology, Department of Health Care Management, Chang Gung University, Taoyuan, Taiwan; Department of Emergency Medicine, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan; Department of Urology, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan; Research Center for Food and Cosmetic Safety, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan, Taiwan; Department of Safety, Health and Environmental Engineering, Ming Chi University of Technology, New Taipei City, Taiwan.
| | - Hung-Yi Chiou
- Department of Public Health, Taipei Medical University, Taipei, Taiwan
| | - Chien-Jen Chen
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Chih-Hung Lee
- Department of Dermatology, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan.
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7
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Screening and identification of potential prognostic biomarkers in bladder urothelial carcinoma: Evidence from bioinformatics analysis. GENE REPORTS 2020. [DOI: 10.1016/j.genrep.2020.100658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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8
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Fernando N, Wooff Y, Aggio-Bruce R, Chu-Tan JA, Jiao H, Dietrich C, Rutar M, Rooke M, Menon D, Eells JT, Valter K, Board PG, Provis J, Natoli R. Photoreceptor Survival Is Regulated by GSTO1-1 in the Degenerating Retina. Invest Ophthalmol Vis Sci 2019; 59:4362-4374. [PMID: 30193308 DOI: 10.1167/iovs.18-24627] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Purpose Glutathione-S-transferase omega 1-1 (GSTO1-1) is a cytosolic glutathione transferase enzyme, involved in glutathionylation, toll-like receptor signaling, and calcium channel regulation. GSTO1-1 dysregulation has been implicated in oxidative stress and inflammation, and contributes to the pathogenesis of several diseases and neurological disorders; however, its role in retinal degenerations is unknown. The aim of this study was to investigate the role of GSTO1-1 in modulating oxidative stress and consequent inflammation in the normal and degenerating retina. Methods The role of GSTO1-1 in retinal degenerations was explored by using Gsto1-/- mice in a model of retinal degeneration. The expression and localization of GSTO1-1 were investigated with immunohistochemistry and Western blot. Changes in the expression of inflammatory (Ccl2, Il-1β, and C3) and oxidative stress (Nox1, Sod2, Gpx3, Hmox1, Nrf2, and Nqo1) genes were investigated via quantitative real-time polymerase chain reaction. Retinal function in Gsto1-/- mice was investigated by using electroretinography. Results GSTO1-1 was localized to the inner segment of cone photoreceptors in the retina. Gsto1-/- photo-oxidative damage (PD) mice had decreased photoreceptor cell death as well as decreased expression of inflammatory (Ccl2, Il-1β, and C3) markers and oxidative stress marker Nqo1. Further, retinal function in the Gsto1-/- PD mice was increased as compared to wild-type PD mice. Conclusions These results indicate that GSTO1-1 is required for inflammatory-mediated photoreceptor death in retinal degenerations. Targeting GSTO1-1 may be a useful strategy to reduce oxidative stress and inflammation and ameliorate photoreceptor loss, slowing the progression of retinal degenerations.
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Affiliation(s)
- Nilisha Fernando
- The John Curtin School of Medical Research, The Australian National University, Canberra, Australian Capital Territory, Australia
| | - Yvette Wooff
- The John Curtin School of Medical Research, The Australian National University, Canberra, Australian Capital Territory, Australia.,The ANU Medical School, The Australian National University, Canberra, Australian Capital Territory, Australia
| | - Riemke Aggio-Bruce
- The John Curtin School of Medical Research, The Australian National University, Canberra, Australian Capital Territory, Australia
| | - Joshua A Chu-Tan
- The John Curtin School of Medical Research, The Australian National University, Canberra, Australian Capital Territory, Australia
| | - Haihan Jiao
- The John Curtin School of Medical Research, The Australian National University, Canberra, Australian Capital Territory, Australia
| | - Catherine Dietrich
- The John Curtin School of Medical Research, The Australian National University, Canberra, Australian Capital Territory, Australia
| | - Matt Rutar
- The John Curtin School of Medical Research, The Australian National University, Canberra, Australian Capital Territory, Australia
| | - Melissa Rooke
- The John Curtin School of Medical Research, The Australian National University, Canberra, Australian Capital Territory, Australia
| | - Deepthi Menon
- The John Curtin School of Medical Research, The Australian National University, Canberra, Australian Capital Territory, Australia.,School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Janis T Eells
- Department of Biomedical Sciences, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin, United States
| | - Krisztina Valter
- The John Curtin School of Medical Research, The Australian National University, Canberra, Australian Capital Territory, Australia.,The ANU Medical School, The Australian National University, Canberra, Australian Capital Territory, Australia
| | - Philip G Board
- The John Curtin School of Medical Research, The Australian National University, Canberra, Australian Capital Territory, Australia
| | - Jan Provis
- The John Curtin School of Medical Research, The Australian National University, Canberra, Australian Capital Territory, Australia.,The ANU Medical School, The Australian National University, Canberra, Australian Capital Territory, Australia
| | - Riccardo Natoli
- The John Curtin School of Medical Research, The Australian National University, Canberra, Australian Capital Territory, Australia.,The ANU Medical School, The Australian National University, Canberra, Australian Capital Territory, Australia
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9
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Tsuji JS, Chang ET, Gentry PR, Clewell HJ, Boffetta P, Cohen SM. Dose-response for assessing the cancer risk of inorganic arsenic in drinking water: the scientific basis for use of a threshold approach. Crit Rev Toxicol 2019; 49:36-84. [DOI: 10.1080/10408444.2019.1573804] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
| | - Ellen T. Chang
- Exponent, Inc., Menlo Park, CA and Stanford Cancer Institute, Stanford, CA, USA
| | | | | | - Paolo Boffetta
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Samuel M. Cohen
- Havlik-Wall Professor of Oncology, Department of Pathology and Microbiology and the Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA
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10
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Tsay MD, Hsieh MJ, Wang SS, Wang WC, Chou YY, Shih CH, Yang SF, Chou YE. Impact of endothelial nitric oxide synthase polymorphisms on urothelial cell carcinoma development. Urol Oncol 2019; 37:293.e1-293.e9. [PMID: 30611644 DOI: 10.1016/j.urolonc.2018.12.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Revised: 12/03/2018] [Accepted: 12/22/2018] [Indexed: 01/04/2023]
Abstract
OBJECTIVES Urothelial cell carcinoma (UCC), a major malignancy of the genitourinary tract, is induced through carcinogenic etiological factors. Endothelial nitric oxide synthase (eNOS) is one of the major isoforms of nitric oxide synthase and is involved in various pathophysiologic and physiologic processes. In this study, eNOS single-nucleotide polymorphisms were investigated to evaluate UCC susceptibility and clinicopathological characteristics. MATERIALS AND METHODS Two single-nucleotide polymorphisms of eNOS in 431 patients with UCC and 862 controls without cancer were analyzed using real-time polymerase chain reaction. RESULTS The results showed that 272 men with UCC having eNOS 894 G > T rs1799983 "GT + TT" variants had a high risk of developing a large tumor (T1-T4, P = 0.038). Furthermore, a correlation was observed between the expressions of eNOS and invasive tumor, metastasis and poor survival in urothelial carcinoma in The Cancer Genome Atlas data set. CONCLUSION Our results indicated that male patients with UCC carrying eNOS 894 G > T rs1799983 "GT + TT" genetic variants have a high risk of developing a large tumor, and eNOS polymorphisms may serve as a marker or therapeutic target in UCC treatment.
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Affiliation(s)
- Ming-Dow Tsay
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan; Department of Family medicine, Tungs' Taichung MetroHarbor Hospital, Taichung, Taiwan
| | - Ming-Ju Hsieh
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan; Cancer Research Center, Changhua Christian Hospital, Changhua, Taiwan; Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan
| | - Shian-Shiang Wang
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan; School of Medicine, Chung Shan Medical University, Taichung, Taiwan; Division of Urology, Department of Surgery, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Wen-Chen Wang
- School of Medical Laboratory and Biotechnology, Chung Shan Medical University, Taichung, Taiwan
| | - Ya-Yi Chou
- School of Medical Laboratory and Biotechnology, Chung Shan Medical University, Taichung, Taiwan
| | - Chen-Ho Shih
- School of Medical Laboratory and Biotechnology, Chung Shan Medical University, Taichung, Taiwan
| | - Shun-Fa Yang
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan; Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Ying-Erh Chou
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan; School of Medicine, Chung Shan Medical University, Taichung, Taiwan; Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan.
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11
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Radic TM, Coric VM, Pljesa-Ercegovac MS, Basta-Jovanovic GM, Radojevic-Skodric SM, Dragicevic DP, Matic MG, Bogdanovic LM, Dzamic ZM, Simic TP, Savic-Radojevic AR. Concomitance of Polymorphisms in Glutathione Transferase Omega Genes Is Associated with Risk of Clear Cell Renal Cell Carcinoma. TOHOKU J EXP MED 2018; 246:35-44. [PMID: 30224590 DOI: 10.1620/tjem.246.35] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Glutathione S-transferases (GSTs), a superfamily of multifunctional enzymes, play an important role in the onset and progression of renal cell carcinoma (RCC). However, novel GST omega class (GSTO), consisting of GSTO1-1 and GSTO2-2 isoenzymes, has not been studied in RCC yet. Two coding single nucleotide polymorphisms (SNPs) supposedly affect their functions: GSTO1*C419A (rs4925) causing alanine to aspartate substitution (*A140D) and GSTO2*A424G (rs156697) causing asparagine to aspartate substitution (*N142D), and have been associated with several neurodegenerative diseases and cancers. Functional relevance of yet another GSTO2 polymorphism, identified at the 5' untranslated (5'UTR) gene region (GSTO2*A183G, rs2297235), has not been clearly discerned so far. Therefore, we aimed to assess the effect of specific GSTO1 and GSTO2 gene variants, independently and in interaction with established risk factors (smoking, obesity and hypertension) on the risk for the most aggressive RCC subtype, the clear cell RCC (ccRCC). Genotyping was performed in 239 ccRCC patients and 350 matched controls, while plasma levels of 8-hydroxy-2'-deoxyguanosine (8-OHdG), a biomarker of oxidative DNA damage, were determined by ELISA. As a result, combined effect of all three variant genotypes exhibited almost 3-fold risk of RCC development. Additionally, this association was confirmed at the haplotype level [variant GSTO1*A/GSTO2*G (rs156697)/GSTO2*G (rs2297235) haplotype], suggesting a potential role of those variants in propensity to RCC. Regarding the gene-environment interactions, variant GSTO2*G (rs156697) homozygous smokers are at higher ccRCC risk. Association in terms of oxidative DNA damage was found for GSTO2 polymorphism in 5'UTR and 8-OHdG. In conclusion, the concomitance of GSTO polymorphisms may influence ccRCC risk.
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Affiliation(s)
- Tanja M Radic
- Institute of Medical and Clinical Biochemistry, Faculty of Medicine, University of Belgrade.,Faculty of Medicine, University of Belgrade
| | - Vesna M Coric
- Institute of Medical and Clinical Biochemistry, Faculty of Medicine, University of Belgrade.,Faculty of Medicine, University of Belgrade
| | - Marija S Pljesa-Ercegovac
- Institute of Medical and Clinical Biochemistry, Faculty of Medicine, University of Belgrade.,Faculty of Medicine, University of Belgrade
| | - Gordana M Basta-Jovanovic
- Faculty of Medicine, University of Belgrade.,Institute of Pathology, Faculty of Medicine, University of Belgrade
| | - Sanja M Radojevic-Skodric
- Faculty of Medicine, University of Belgrade.,Institute of Pathology, Faculty of Medicine, University of Belgrade
| | - Dejan P Dragicevic
- Faculty of Medicine, University of Belgrade.,Clinic of Urology, Clinical Centre of Serbia, Faculty of Medicine, University of Belgrade
| | - Marija G Matic
- Institute of Medical and Clinical Biochemistry, Faculty of Medicine, University of Belgrade.,Faculty of Medicine, University of Belgrade
| | - Ljiljana M Bogdanovic
- Faculty of Medicine, University of Belgrade.,Institute of Pathology, Faculty of Medicine, University of Belgrade
| | - Zoran M Dzamic
- Faculty of Medicine, University of Belgrade.,Clinic of Urology, Clinical Centre of Serbia, Faculty of Medicine, University of Belgrade
| | - Tatjana P Simic
- Institute of Medical and Clinical Biochemistry, Faculty of Medicine, University of Belgrade.,Faculty of Medicine, University of Belgrade
| | - Ana R Savic-Radojevic
- Institute of Medical and Clinical Biochemistry, Faculty of Medicine, University of Belgrade.,Faculty of Medicine, University of Belgrade
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12
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Ledda C, Iavicoli I, Bracci M, Avola R, Senia P, Santarelli L, Pomara C, Rapisarda V. Serum lipid, lipoprotein and apolipoprotein profiles in workers exposed to low arsenic levels: Lipid profiles and occupational arsenic exposure. Toxicol Lett 2017; 282:49-56. [PMID: 29054558 DOI: 10.1016/j.toxlet.2017.10.014] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 10/09/2017] [Accepted: 10/15/2017] [Indexed: 12/15/2022]
Abstract
Epidemiologic studies have reported that exposure to arsenic (As) is associated with higher risk of cardiovascular disease (i.e., coronary heart disease and peripheral arterial heart disease) and mortality. This cross-sectional study aimed to compare serum lipid, lipoprotein, and apolipoprotein profiles in workers exposed to As. The subjects of this study included 57 workers exposed to As and 57 controls. Demographic characteristics and occupational information were collected through questionnaires. Exposure to As was assessed in indoor air of a workplace and determined using the creatinine values in the urine. Blood samples were collected using immunochemistry and nephelometry to measure the levels of total cholesterol (CHOL), triglycerides (TRIG), high-density lipoprotein (HDL), low-density lipoprotein (LDL), lipoprotein(a) (Lp(a)), apolipoprotein-A1 (Apo-A1), and apolipoprotein-B (Apo-B). No significant difference in the demographic data was detected between the two groups. Urinary As concentration was significantly (p<0.001) higher in exposed subjects than in the controls (13.4±6.1 and 4.4±6.1μg/gCreat, respectively). No statistically significant differences were observed in CHOL, TRIG, HDL, and LDL concentrations between the two groups. Lp(a), Apo-B, and Apo-B/Apo-A1 ratio values were significantly higher and the Apo-A1 level was significantly lower in the exposed group than in the control subjects. Regression analysis highlighted a significant (p<0.001) association between urinary As and Lp(a), Apo-A1, and Apo-B concentration, and Apo-B/Apo-A1 ratio. This study revealed the influence of As on apolipoproteins, suggesting a potential risk of cardiovascular diseases in subjects exposed to low levels of As.
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Affiliation(s)
- Caterina Ledda
- Occupational Medicine, Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy.
| | - Ivo Iavicoli
- Occupational Medicine, Department of Public Health, University of Naples Federico II, Naples, Italy
| | - Massimo Bracci
- Occupational Medicine, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Roberto Avola
- Biochemistry, Department of Biomedical Sciences and Biotechnology, University of Catania, Catania, Italy
| | - Paola Senia
- Occupational Medicine, Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Lory Santarelli
- Occupational Medicine, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Cristoforo Pomara
- Megal Medicine, Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy; Department of Anatomy, University of Malta, Msida, Malta
| | - Venerando Rapisarda
- Occupational Medicine, Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
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13
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Fang Z, Wu Y, Zhang N. Association between CYP2E1 genetic polymorphisms and urinary cancer risk: a meta-analysis. Oncotarget 2017; 8:86853-86864. [PMID: 29156840 PMCID: PMC5689730 DOI: 10.18632/oncotarget.20993] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 08/29/2017] [Indexed: 12/19/2022] Open
Abstract
Objective Studies investigating the contribution of Cytochrome P4502E1 (CYP2E1) polymorphisms to the etiology of urinary cancer draw inconsistent conclusions. Thus, we performed a meta-analysis to evaluate the association between CYP2E1 Rsa I/Pst I and Dra I polymorphisms and urinary cancer susceptibility. Materials and Methods Meta-analysis based on the eligible case-control studies that assess the association of CYP2E1 Rsa I/Pst I and Dra I polymorphisms with urinary cancer was conducted. Subgroup analyses based on ethnicity and cancer type were also carried out. Odds ratios (OR) and 95% confidence intervals (95% CI) were calculated to evaluate the strength of the associations between the two polymorphisms. Funnel plot and Begg’s test were used for publication bias diagnosis. Results We found decreased urinary cancer risk among subjects carrying CYP2E1 RsaI/PstI c1c2 + c2c2 genotype and c2 allele (OR = 0.73, 95% CI = 0.68–0.79 and OR = 0.79, 95% CI = 0.74–0.85, respectively), with 3,301 cases and 3,786 controls from 14 studies. We also observed a significant difference in c1c2 + c2c2 vs. c1c1 and c2 vs. c1 among Asians (OR = 0.68, 95% CI = 0.60–0.78 and OR = 0.75, 95% CI = 0.66–0.85, respectively). However, the meta-analysis based on 5 eligible studies showed no significant association between CYP2E1 Dra I polymorphism and urinary cancer susceptibility in either dominant model or the allele model. Conclusions Our meta-analysis concluded that CYP2E1 Rsa I/Pst I polymorphism correlates with urinary cancers risk in Asian population; while CYP2E1 Dra I polymorphism might be not significantly associated with the urinary cancer risks. Large and well-designed studies are needed to confirm these results.
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Affiliation(s)
- Zhiqing Fang
- Department of Urology, Qilu Hospital, Shandong University, Jinan, Shandong, China
| | - Yun Wu
- Department of Breast Surgery, Qilu Hospital, Shandong University, Jinan, Shandong, China
| | - Ning Zhang
- Department of Breast Surgery, Qilu Hospital, Shandong University, Jinan, Shandong, China
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14
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Hsieh HY, Jou YC, Tung CL, Tsai YS, Wang YH, Chi CL, Lin RI, Hung SK, Chuang YM, Wu SF, Li C, Shen CH, Chan MWY, Hsu CD. Epigenetic silencing of the dual-role signal mediator, ANGPTL4 in tumor tissues and its overexpression in the urothelial carcinoma microenvironment. Oncogene 2017; 37:673-686. [PMID: 29035390 DOI: 10.1038/onc.2017.375] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Revised: 09/03/2017] [Accepted: 09/07/2017] [Indexed: 12/22/2022]
Abstract
Urothelial carcinoma (UC) carcinogenesis has been hypothesized to occur through epigenetic repression of tumor-suppressor genes (TSGs). By quantitative real-time polymerase chain reaction array, we found that one potential TSG, angiopoietin-like 4 (ANGPTL4), was expressed at very low levels in all bladder cancer cell lines we examined. Previous studies had demonstrated that ANGPTL4 is highly expressed in some cancers, but downregulated, by DNA methylation, in others. Consequently, owing to these seemingly conflicting functions in distinct cancers, the precise role of ANGPTL4 in the etiology of UC remains unclear. In this study, using methylation-specific PCR and bisulfite pyrosequencing, we show that ANGPTL4 is transcriptionally repressed by DNA methylation in UC cell lines and primary tumor samples, as compared with adjacent noncancerous bladder epithelium. Functional studies further demonstrated that ectopic expression of ANGPTL4 potently suppressed UC cell proliferation, monolayer colony formation in vitro, and invasion, migration, and xenograft formation in vivo. Surprisingly, circulating ANGPTL4 was significantly higher in plasma samples from UC patients than normal control, suggesting it might be secreted from other cell types. Interestingly, our data also indicated that exogenous cANGPTL4 could promote cell proliferation and cell migration via activation of signaling through the Erk/focal adhesion kinase axis. We further confirmed that mouse xenograft tumor growth could be promoted by administration of exogenous cANGPTL4. Finally, immunohistochemistry demonstrated that ANGPTL4 was downregulated in tumor cells but overexpressed in tumor adjacent stromal tissues of muscle-invasive UC tissue samples. In conclusion, our data support dual roles for ANGPTL4 in UC progression, either as a tumor suppressor or oncogene, in response to microenvironmental context.
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Affiliation(s)
- H-Y Hsieh
- Department of Medical Research, Ditmanson Medical Fountain Chiayi Christian Hospital, Chiayi, Taiwan.,Department of Urology, Ditmanson Medical Foundation Chiayi Christian Hospital, Chiayi, Taiwan.,Department of Life Science, National Chung Cheng University, Chiayi, Taiwan.,Department of Biology, National Museum of Natural Science, Taichung, Taiwan
| | - Y-C Jou
- Department of Urology, Ditmanson Medical Foundation Chiayi Christian Hospital, Chiayi, Taiwan
| | - C-L Tung
- Department of Pathology, Ditmanson Medical Foundation Chiayi Christian Hospital, Chiayi, Taiwan
| | - Y-S Tsai
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Y-H Wang
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Division of General Surgery, Department of Urology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - C-L Chi
- Department of Pathology, Buddhist Dalin Tzu Chi General Hospital, Chiayi, Taiwan
| | - R-I Lin
- Department of Radiation Oncology, Buddhist Dalin Tzu Chi General Hospital, Chiayi, Taiwan
| | - S-K Hung
- Department of Radiation Oncology, Buddhist Dalin Tzu Chi General Hospital, Chiayi, Taiwan.,School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Y-M Chuang
- Department of Life Science, National Chung Cheng University, Chiayi, Taiwan.,Institute of Molecular Biology, National Chung Cheng University, Chiayi, Taiwan
| | - S-F Wu
- Department of Life Science, National Chung Cheng University, Chiayi, Taiwan.,Institute of Molecular Biology, National Chung Cheng University, Chiayi, Taiwan
| | - C Li
- Department of Life Science, National Chung Cheng University, Chiayi, Taiwan.,Institute of Molecular Biology, National Chung Cheng University, Chiayi, Taiwan
| | - C-H Shen
- Department of Urology, Ditmanson Medical Foundation Chiayi Christian Hospital, Chiayi, Taiwan
| | - M W Y Chan
- Department of Life Science, National Chung Cheng University, Chiayi, Taiwan.,Institute of Molecular Biology, National Chung Cheng University, Chiayi, Taiwan
| | - C-D Hsu
- Department of Medical Research, Ditmanson Medical Fountain Chiayi Christian Hospital, Chiayi, Taiwan.,Department of Urology, Ditmanson Medical Foundation Chiayi Christian Hospital, Chiayi, Taiwan.,Department of Life Science, National Chung Cheng University, Chiayi, Taiwan
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15
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GSTO1*C/GSTO2*G haplotype is associated with risk of transitional cell carcinoma of urinary bladder. Int Urol Nephrol 2015; 47:625-30. [PMID: 25716313 DOI: 10.1007/s11255-015-0933-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Accepted: 02/14/2015] [Indexed: 02/01/2023]
Abstract
PURPOSE To clarify the role of genetic polymorphisms of GSTO1 (rs4925) and GSTO2 (rs156697) in individual susceptibility to urinary bladder cancer. METHODS Case-control study consisting of 187 patients with histologically confirmed transitional cell carcinoma (TCC) of urinary bladder and 140 age- and gender-matched cancer-free controls was carried out. Genotyping of GSTO1 and GSTO2 was performed by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). RESULTS We found that carriers of mutant GSTO2*G/G genotype were at increased risk of the development of TCC (OR 2.6, 95% CI 1.2-5.8, p = 0.041), while GSTO1 rs4925 polymorphism was not significantly associated with TCC risk (p = 0.450). According to smoking status, smokers with GSTO2*G/G genotype had significantly higher risk of TCC of urinary bladder (OR 4.3, 95% CI 1.6-11.2, p = 0.003) compared to wild-type carriers with no smoking history. We further analyzed the effects of GSTO1/GSTO2 haplotypes on TCC risk, based on the linkage disequilibrium found for GSTO1 (rs4925) and GSTO2 (rs156697) (D' = 0.309, p = 0.001). The study subjects with GSTO1*C/GSTO2*G (GSTO1 wild-type/GSTO2 mutant) haplotype were at the highest risk of the development of transitional cell carcinoma of urinary bladder (OR 2.8, 95% CI 1.5-5.2, p = 0.002). CONCLUSIONS Our results indicate that GSTO1*C/GSTO2*G haplotype is associated with increased risk of TCC. The modifying effect of GSTO2*G/G genotype on individual susceptibility to TCC is more pronounced, when associated with smoking.
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16
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Genetic polymorphisms in Glutathione S-transferase Omega (GSTO) and cancer risk: a meta-analysis of 20 studies. Sci Rep 2014; 4:6578. [PMID: 25300926 PMCID: PMC4192632 DOI: 10.1038/srep06578] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Accepted: 09/15/2014] [Indexed: 12/28/2022] Open
Abstract
Glutathione S-transferase Omega (GSTO) plays an important role in the development of cancer. Recently, a number of studies have investigated the association between single nucleotide polymorphisms on GSTO and susceptibility to cancer; however, the results remain inconclusive. We performed a meta-analysis of 20 studies, involving 4770 cases and 5701 controls to identify the strength of association by pooled odds ratios (ORs) with corresponding 95% confidence intervals (CIs). Overall, the pooled results revealed a significantly increased risk of susceptibility for GSTO2 polymorphism (GG vs. AA: OR = 1.20, 95%CI: 1.02-1.41, Pheterogeneity = 0.116), but no significant association was found for GSTO1 polymorphism. Subgroup analysis showed that GSTO2 polymorphism significantly increased cancer risk in Caucasian population (GG vs. AA: OR = 1.32, 95%CI 1.06-1.64, Pheterogeneity = 0.616) and GSTO2 polymorphism was significantly associated with elevated risk of breast cancer (GG vs. AA OR = 1.37, 95%CI: 1.06-1.77; Pheterogeneity = 0.281). This meta-analysis demonstrates that GSTO2 polymorphism may significantly increase cancer risk in Caucasian population and is associated with elevated risk of breast cancer; while GSTO1 polymorphism is not associated with cancer risk.
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Clinical significance of survivin expression in patients with urothelial carcinoma. DISEASE MARKERS 2014; 2014:574985. [PMID: 24648609 PMCID: PMC3933524 DOI: 10.1155/2014/574985] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2013] [Accepted: 12/12/2013] [Indexed: 12/14/2022]
Abstract
Background. Survivin is a member of the inhibitors of apoptosis protein family that plays an important role in carcinogenesis. Here, we examined the association between survivin expression and clinical outcome in urothelial carcinoma of the bladder (UCB). Methods. A total of 56 histopathologically confirmed UCB patients were recruited from the Department of Urology of Chiayi Christian Hospital from August 2007 to May 2009. Immunohistochemistry (IHC) was used to detect the survivin expression in tumor tissues. The –31 C/G polymorphism in survivin promoter region was determined by polymerase chain reaction-restricted fragment length polymorphism. Results.
The frequency of high survivin expression was significantly higher in muscle-invasive tumors (66.6%) than in non-muscle-invasive tumors (34.2%) (P = 0.042) and in poorly differentiated (85.7%) tumors than in moderately differentiated tumors (30.8%) (P = 0.0014). The higher frequency of risk genotypes (C/C and C/G) was found in the median (72.7%) and high (68.0%) survivin expression groups. The multivariate analysis showed that a high survivin expression level was a potential predictive biomarker of poor overall survival (P = 0.02). Conclusion. Our results suggest that the high survivin expression was associated with tumor stage and grade and may present a predictive marker of overall survival in UCB.
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Wang YH, Yeh SD, Wu MM, Liu CT, Shen CH, Shen KH, Pu YS, Hsu LI, Chiou HY, Chen CJ. Comparing the joint effect of arsenic exposure, cigarette smoking and risk genotypes of vascular endothelial growth factor on upper urinary tract urothelial carcinoma and bladder cancer. JOURNAL OF HAZARDOUS MATERIALS 2013; 262:1139-1146. [PMID: 23009795 DOI: 10.1016/j.jhazmat.2012.08.056] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2011] [Revised: 08/21/2012] [Accepted: 08/24/2012] [Indexed: 06/01/2023]
Abstract
Arsenic exposure and cigarette smoking are environmental risk factors for urothelial carcinoma (UC). Vascular endothelial growth factor (VEGF) is the key regulator of angiogenesis in various malignancies. This study investigates the joint effect of arsenic exposure, cigarette smoking, and VEGF polymorphisms on UC risk. This was a hospital-based case-control study consisting of 730 histopathologically confirmed UC cases, including 470 bladder cancers, 260 upper urinary tract UCs (UUTUCs), and 850 age-matched controls, recruited from September 1998 to December 2009. UC risk was estimated by odds ratios and 95% confidence intervals using unconditional logistic regression. Ever smokers with high arsenic exposure had significantly increased risks of 5.7 and 6.4 for bladder cancer and UUTUC, respectively. Moreover, ever smokers with high arsenic exposure carrying 1 or 2 risk genotypes of the VEGF gene had a significantly increased risk of 6.6 for bladder cancer and a strikingly higher risk of 9.9 for UUTUC. Additionally, UUTUC cases with high arsenic exposure carrying 1 or 2 risk genotypes of the VEGF gene had a non-significant increased risk of advanced tumor stage. Our findings suggest that arsenic exposure, cigarette smoking, and risk genotypes of VEGF contribute to a higher risk of UUTUC than of bladder cancer.
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Affiliation(s)
- Yuan-Hung Wang
- School of Public Health, Taipei Medical University, Taipei, Taiwan; Division of Urology, Department of Surgery, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan; Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
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Menon D, Board PG. A role for glutathione transferase Omega 1 (GSTO1-1) in the glutathionylation cycle. J Biol Chem 2013; 288:25769-25779. [PMID: 23888047 DOI: 10.1074/jbc.m113.487785] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The glutathionylation of intracellular protein thiols can protect against irreversible oxidation and can act as a redox switch regulating metabolic pathways. In this study we discovered that the Omega class glutathione transferase GSTO1-1 plays a significant role in the glutathionylation cycle. The catalytic activity of GSTO1-1 was determined in vitro by assaying the deglutathionylation of a synthetic peptide by tryptophan fluorescence quenching and in T47-D epithelial breast cancer cells by both immunoblotting and the direct determination of total glutathionylation. Mutating the active site cysteine residue (Cys-32) ablated the deglutathionylating activity of GSTO1-1. Furthermore, we demonstrate that the expression of GSTO1-1 in T47-D cells that are devoid of endogenous GSTO1-1 resulted in a 50% reduction in total glutathionylation levels. Mass spectrometry and immunoprecipitation identified β-actin as a protein that is specifically deglutathionylated by GSTO1-1 in T47-D cells. In contrast to the deglutathionylation activity, we also found that GSTO1-1 is associated with the rapid glutathionylation of cellular proteins when the cells are exposed to S-nitrosoglutathione. The common A140D genetic polymorphism in GSTO1 was found to have significant effects on the kinetics of both the deglutathionylation and glutathionylation reactions. Genetic variation in GSTO1-1 has been associated with a range of diseases, and the discovery that a frequent GSTO1-1 polymorphism affects glutathionylation cycle reactions reveals a common mechanism where it can act on multiple proteins and pathways.
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Affiliation(s)
- Deepthi Menon
- From the Department of Molecular Bioscience, John Curtin School of Medical Research, Australian National University, Canberra ACT-2600, Australia
| | - Philip G Board
- From the Department of Molecular Bioscience, John Curtin School of Medical Research, Australian National University, Canberra ACT-2600, Australia.
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Survivin gene promoter -31 G/C polymorphism is associated with Wilms tumor susceptibility in Serbian children. J Pediatr Hematol Oncol 2012; 34:e310-4. [PMID: 22858571 DOI: 10.1097/mph.0b013e31825d3076] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Survivin, an apoptotic inhibitor, is overexpressed in various types of cancer. Mechanisms of survivin upregulation are still poorly understood, but single nucleotide polymorphisms in the survivin gene promoter have been shown to modulate survivin expression and consequently the risk for some types of cancer. The aim of the present study was to investigate whether survivin promoter -31 G/C and -241 C/T polymorphisms could represent susceptibility factors for Wilms tumor (WT) development in Serbian population. Genotype and allele frequencies for the 2 polymorphisms in survivin promoter have been analyzed by polymerase chain reaction/restriction fragment length polymorphism in 59 WT patients and 82 controls. The frequencies of alleles and genotypes were significantly different between patients and controls for the -31 G/C polymorphism. Individuals with CC and CG genotypes had significantly decreased risk of WT compared with GG individuals (odds ratio 0.26, 95% confidence interval, 0.07-0.96; odds ratio 0.30, 95% confidence interval, 0.15-0.60). There was also a statistically significant difference in genotype frequencies between intermediate and high-risk prognostic groups (P=0.015). The -241 C/T polymorphism did not show association with WT susceptibility. Our findings suggest that the G allele at -31 survivin gene promoter position is associated with a significantly higher cancer risk in Serbian children, with a gene dosage effect.
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Zhou H, Brock J, Liu D, Board PG, Oakley AJ. Structural Insights into the Dehydroascorbate Reductase Activity of Human Omega-Class Glutathione Transferases. J Mol Biol 2012; 420:190-203. [DOI: 10.1016/j.jmb.2012.04.014] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2011] [Revised: 04/09/2012] [Accepted: 04/11/2012] [Indexed: 11/30/2022]
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Lesseur C, Gilbert-Diamond D, Andrew AS, Ekstrom RM, Li Z, Kelsey KT, Marsit CJ, Karagas MR. A case-control study of polymorphisms in xenobiotic and arsenic metabolism genes and arsenic-related bladder cancer in New Hampshire. Toxicol Lett 2012; 210:100-6. [PMID: 22306368 DOI: 10.1016/j.toxlet.2012.01.015] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2011] [Revised: 01/20/2012] [Accepted: 01/21/2012] [Indexed: 12/30/2022]
Abstract
Arsenic is associated with bladder cancer risk even at low exposure levels. Genetic variation in enzymes involved in xenobiotic and arsenic metabolism may modulate individual susceptibility to arsenic-related bladder cancer. Through a population-based case-control study in NH (832 cases and 1191 controls), we investigated gene-environment interactions between arsenic metabolic gene polymorphisms and arsenic exposure in relation to bladder cancer risk. Toenail arsenic concentrations were used to classify subjects into low and high exposure groups. Single nucleotide polymorphisms (SNPs) in GSTP1, GSTO2, GSTZ1, AQP3, AS3MT and the deletion status of GSTM1 and GSTT1 were determined. We found evidence of genotype-arsenic interactions in the high exposure group; GSTP1 Ile105Val homozygous individuals had an odds ratio (OR) of 5.4 [95% confidence interval (CI): 1.5-20.2; P for interaction=0.03] and AQP3 Phe130Phe carriers had an OR=2.2 (95% CI: 0.8-6.1; P for interaction=0.10). Bladder cancer risk overall was associated with GSTO2 Asn142Asp (homozygous; OR=1.4; 95% CI: 1.0-1.9; P for trend=0.06) and GSTZ1 Glu32Lys (homozygous; OR=1.3; 95% CI: 0.9-1.8; P for trend=0.06). Our findings suggest that susceptibility to bladder cancer may relate to variation in genes involved in arsenic metabolism and oxidative stress response and potential gene-environment interactions requiring confirmation in other populations.
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Affiliation(s)
- Corina Lesseur
- Department of Community and Family Medicine, Dartmouth Medical School, Lebanon, NH 03756, USA
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Hughes MF, Beck BD, Chen Y, Lewis AS, Thomas DJ. Arsenic exposure and toxicology: a historical perspective. Toxicol Sci 2011; 123:305-32. [PMID: 21750349 PMCID: PMC3179678 DOI: 10.1093/toxsci/kfr184] [Citation(s) in RCA: 707] [Impact Index Per Article: 54.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2011] [Accepted: 06/30/2011] [Indexed: 12/23/2022] Open
Abstract
The metalloid arsenic is a natural environmental contaminant to which humans are routinely exposed in food, water, air, and soil. Arsenic has a long history of use as a homicidal agent, but in the past 100 years arsenic, has been used as a pesticide, a chemotherapeutic agent and a constituent of consumer products. In some areas of the world, high levels of arsenic are naturally present in drinking water and are a toxicological concern. There are several structural forms and oxidation states of arsenic because it forms alloys with metals and covalent bonds with hydrogen, oxygen, carbon, and other elements. Environmentally relevant forms of arsenic are inorganic and organic existing in the trivalent or pentavalent state. Metabolism of arsenic, catalyzed by arsenic (+3 oxidation state) methyltransferase, is a sequential process of reduction from pentavalency to trivalency followed by oxidative methylation back to pentavalency. Trivalent arsenic is generally more toxicologically potent than pentavalent arsenic. Acute effects of arsenic range from gastrointestinal distress to death. Depending on the dose, chronic arsenic exposure may affect several major organ systems. A major concern of ingested arsenic is cancer, primarily of skin, bladder, and lung. The mode of action of arsenic for its disease endpoints is currently under study. Two key areas are the interaction of trivalent arsenicals with sulfur in proteins and the ability of arsenic to generate oxidative stress. With advances in technology and the recent development of animal models for arsenic carcinogenicity, understanding of the toxicology of arsenic will continue to improve.
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Affiliation(s)
- Michael F Hughes
- Office of Research and Development, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA.
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Hsieh YC, Lien LM, Chung WT, Hsieh FI, Hsieh PF, Wu MM, Tseng HP, Chiou HY, Chen CJ. Significantly increased risk of carotid atherosclerosis with arsenic exposure and polymorphisms in arsenic metabolism genes. ENVIRONMENTAL RESEARCH 2011; 111:804-810. [PMID: 21605854 DOI: 10.1016/j.envres.2011.05.003] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2010] [Revised: 04/20/2011] [Accepted: 05/03/2011] [Indexed: 05/30/2023]
Abstract
Individual susceptibility to arsenic-induced carotid atherosclerosis might be associated with genetic variations in arsenic metabolism. The purpose of this study is to explore the interaction effect on risk of carotid atherosclerosis between arsenic exposure and risk genotypes of purine nucleoside phosphorylase (PNP), arsenic (+3) methyltransferase (As3MT), and glutathione S-transferase omega 1 (GSTO1) and omega 2 (GSTO2). A community-based case-control study was conducted in northeastern Taiwan to investigate the arsenic metabolic-related genetic susceptibility to carotid atherosclerosis. In total, 863 subjects, who had been genotyped and for whom the severity of carotid atherosclerosis had been determined, were included in the present study. Individual well water was collected and arsenic concentration determined using hydride generation combined with flame atomic absorption spectrometry. The result showed that a significant dose-response trend (P=0.04) of carotid atherosclerosis risk associated with increasing arsenic concentration. Non-significant association between genetic polymorphisms of PNP Gly51Ser, Pro57Pro, As3MT Met287Thr, GSTO1 Ala140Asp, and GSTO2 A-183G and the risk for development of carotid atherosclerosis were observed. However, the significant interaction effect on carotid atherosclerosis risk was found for arsenic exposure (>50μg/l) and the haplotypes of PNP (p=0.0115). A marked elevated risk of carotid atherosclerosis was observed in subjects with arsenic exposure of >50μg/l in drinking water and those who carried the PNP A-T haplotype and at least either of the As3MT risk polymorphism or GSTO risk haplotypes (OR, 6.43; 95% CI, 1.79-23.19). In conclusion, arsenic metabolic genes, PNP, As3MT, and GSTO, may exacerbate the formation of atherosclerosis in individuals with high levels of arsenic concentration in well water (>50μg/l).
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Affiliation(s)
- Yi-Chen Hsieh
- School of Public Health, College of Public Health and Nutrition, Taipei Medical University, 250 Wusing St., Taipei 11031, Taiwan
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Hsu LI, Chen WP, Yang TY, Chen YH, Lo WC, Wang YH, Liao YT, Hsueh YM, Chiou HY, Wu MM, Chen CJ. Genetic polymorphisms in glutathione S-transferase (GST) superfamily and risk of arsenic-induced urothelial carcinoma in residents of southwestern Taiwan. J Biomed Sci 2011; 18:51. [PMID: 21798077 PMCID: PMC3199751 DOI: 10.1186/1423-0127-18-51] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2011] [Accepted: 07/29/2011] [Indexed: 12/20/2022] Open
Abstract
Background Arsenic exposure is an important public health issue worldwide. Dose-response relationship between arsenic exposure and risk of urothelial carcinoma (UC) is consistently observed. Inorganic arsenic is methylated to form the metabolites monomethylarsonic acid and dimethylarsinic acid while ingested. Variations in capacity of xenobiotic detoxification and arsenic methylation might explain individual variation in susceptibility to arsenic-induced cancers. Methods To estimate individual susceptibility to arsenic-induced UC, 764 DNA specimens from our long-term follow-up cohort in Southwestern Taiwan were used and the genetic polymorphisms in GSTM1, GSTT1, GSTP1 and arsenic methylation enzymes including GSTO1 and GSTO2 were genotyped. Results The GSTT1 null was marginally associated with increased urothelial carcinoma (UC) risk (HR, 1.91, 95% CI, 1.00-3.65), while the association was not observed for other GSTs. Among the subjects with cumulative arsenic exposure (CAE) ≥ 20 mg/L*year, the GSTT1 null genotype conferred a significantly increased cancer risk (RR, 3.25, 95% CI, 1.20-8.80). The gene-environment interaction between the GSTT1 and high arsenic exposure with respect to cancer risk was statistically significant (multiplicative model, p = 0.0151) and etiologic fraction was as high as 0.86 (95% CI, 0.51-1.22). The genetic effects of GSTO1/GSTO2 were largely confined to high arsenic level (CAE ≥ 20). Diplotype analysis showed that among subjects exposed to high levels of arsenic, the AGG/AGG variant of GSTO1 Ala140Asp, GSTO2 5'UTR (-183)A/G, and GSTO2 Asn142Asp was associated with an increased cancer risk (HRs, 4.91, 95% CI, 1.02-23.74) when compared to the all-wildtype reference, respectively. Conclusions The GSTs do not play a critical role in arsenic-induced urothelial carcinogenesis. The genetic effects of GSTT1 and GSTO1 on arsenic-induced urothelial carcinogenesis are largely confined to very high exposure level.
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Affiliation(s)
- Ling-I Hsu
- Genomics Research Center, Academia Sinica, No.128 Academia road, Sec 2, Nankang, Taipei 115, Taiwan
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Board PG. The omega-class glutathione transferases: structure, function, and genetics. Drug Metab Rev 2011; 43:226-35. [DOI: 10.3109/03602532.2011.561353] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Trafalis DT, Panteli ES, Grivas A, Tsigris C, Karamanakos PN. CYP2E1 and risk of chemically mediated cancers. Expert Opin Drug Metab Toxicol 2010; 6:307-19. [DOI: 10.1517/17425250903540238] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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