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Galiniak S, Biesiadecki M, Mołoń M, Olech P, Balawender K. Serum Oxidative and Nitrosative Stress Markers in Clear Cell Renal Cell Carcinoma. Cancers (Basel) 2023; 15:3995. [PMID: 37568812 PMCID: PMC10417121 DOI: 10.3390/cancers15153995] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 08/01/2023] [Accepted: 08/04/2023] [Indexed: 08/13/2023] Open
Abstract
Oxidative stress is believed to be a factor in the development and progression of renal cell carcinoma (RCC). The identification of the oxidative and nitrosative modification of proteins and the definition of their roles in clear cell RCC (ccRCC) may be helpful in the elaboration of targeted therapeutic approaches to mitigate protein damage. This study aimed to investigate the status of oxidative/nitrosative stress and to explore its role in the development and progression. The studied group consisted of 48 newly diagnosed ccRCC and 30 healthy controls. Serum levels of oxidative stress markers-advanced oxidation protein products (AOPP), thiol groups, Amadori reaction products, 3-nitrotyrosine, nitrate/nitrite, malondialdehyde (MDA), 4-hydroxy-2-nonenal and total antioxidant capacity (TAC)-were determined. Additionally, associations between tumour stage assessed according to TNM classification, histological grade, and the effect of the presence of angioinvasion on the level of stress markers were evaluated. The levels of Amadori products, 3-nitrotyrosine, and nitrate/nitrite were elevated, while the levels of thiol groups and TAC decreased in the ccRCC group. The levels of AOPP, Amadori, and 3-nitrotyrosine increased, and thiol groups and TAC levels decreased with the increasing pathological stage of the tumour. In the case of advanced histological assessment of the tumour, we found decreasing levels of thiol groups and increasing levels of MDA. In patients with angioinvasion, nitrate/nitrite and MDA levels were significantly elevated compared to those in patients without angioinvasion. Oxidative stress increased with the progression of the disease assessed according to the TNM and histological grade. These results demonstrate systemic oxidative stress in ccRCC, suggesting the therapeutic application of antioxidants.
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Affiliation(s)
- Sabina Galiniak
- Institute of Medical Sciences, Medical College, Rzeszow University, Warzywna 1a, 35-310 Rzeszow, Poland;
| | - Marek Biesiadecki
- Institute of Medical Sciences, Medical College, Rzeszow University, Warzywna 1a, 35-310 Rzeszow, Poland;
| | - Mateusz Mołoń
- Institute of Biology, College of Natural Sciences, Rzeszow University, Zelwerowicza 4, 35-601 Rzeszow, Poland
| | - Patrycja Olech
- Institute of Biology, College of Natural Sciences, Rzeszow University, Zelwerowicza 4, 35-601 Rzeszow, Poland
| | - Krzysztof Balawender
- Institute of Medical Sciences, Medical College, Rzeszow University, Warzywna 1a, 35-310 Rzeszow, Poland;
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Huang Y, Yan H, Yang Y, Zhou J, Xu Q, Meng H. Downregulated miR-181a alleviates H(2)O(2)-induced oxidative stress and cellular senescence by targeting PDIA6 in human foreskin fibroblasts. An Bras Dermatol 2023; 98:17-25. [PMID: 36244946 DOI: 10.1016/j.abd.2021.12.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 12/03/2021] [Accepted: 12/03/2021] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Oxidative stress is strongly associated with cellular senescence. Numerous studies have indicated that microRNAs (miRNAs) play a critical part in cellular senescence. MiR-181a was reported to induce cellular senescence, however, the potential mechanism of miR-181a in hydrogen peroxide (H2O2)-induced cellular senescence remains obscure. OBJECTIVE The aim of this study is to investigate the role and regulatory mechanism of miR-181a in H2O2-induced cellular senescence. METHODS Human foreskin fibroblasts (HFF) transfected with miR-181a inhibitor/miR-NC with or without H2O2 treatment were divided into four groups: control + miR-NC/miR-181a inhibitor, H2O2 + miR-NC/miR-181a inhibitor. CCK-8 assay was utilized to evaluate the viability of HFF. RT-qPCR was used to measure the expression of miR-181a and its target genes. Protein levels of protein disulfide isomerase family A member 6 (PDIA6) and senescence markers were assessed by western blotting. Senescence-associated β-galactosidase (SA-β-gal) staining was applied for detecting SA-β-gal activity. The activities of SOD, GPx, and CAT were detected by corresponding assay kits. The binding relation between PDIA6 and miR-181a was identified by luciferase reporter assay. RESULTS MiR-181a inhibition suppressed H2O2-induced oxidative stress and cellular senescence in HFF. PDIA6 was targeted by miR-181a and lowly expressed in H2O2-treated HFF. Knocking down PDIA6 reversed miR-181a inhibition-mediated suppressive impact on H2O2-induced oxidative stress and cellular senescence in HFF. STUDY LIMITATIONS Signaling pathways that might be mediated by miR-181a/PDIA6 axis were not investigated. CONCLUSION Downregulated miR-181a attenuates H2O2-induced oxidative stress and cellular senescence in HFF by targeting PDIA6.
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Jiang H, Hong Y, Fan G. Bismuth Reduces Cisplatin-Induced Nephrotoxicity Via Enhancing Glutathione Conjugation and Vesicular Transport. Front Pharmacol 2022; 13:887876. [PMID: 35784696 PMCID: PMC9243339 DOI: 10.3389/fphar.2022.887876] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 05/04/2022] [Indexed: 11/13/2022] Open
Abstract
Bismuth drugs have long been used against gastrointestinal diseases, especially the gastric infection of Helicobacter pylori. Cisplatin is a widely used anticancer drug that tends to accumulate at renal proximal tubules and causes severe nephrotoxicity. It was found that bismuth pretreatment reduces cisplatin-induced nephrotoxicity, but the mechanism of action remains unclear. To understand bismuth’s effect on renal tubules, we profiled the proteomic changes in human proximal tubular cells (HK-2) upon bismuth treatment. We found that bismuth induced massive glutathione biosynthesis, glutathione S-transferase activity, and vesicular transportation, which compartmentalizes bismuth to the vesicles and forms bismuth–sulfur nanoparticles. The timing of glutathione induction concurs that of bismuth-induced cisplatin toxicity mitigation in HK-2, and bismuth enhanced cisplatin sequestration to vesicles and incorporation into bismuth–sulfur nanoparticles. Finally, we found that bismuth mitigates the toxicity of general soft metal compounds but not hard metal compounds or oxidants. It suggests that instead of through oxidative stress reduction, bismuth reduces cisplatin-induced toxicity by direct sequestration.
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Affiliation(s)
- Hui Jiang
- Tongji University School of Medicine, Shanghai, China
| | - Yifan Hong
- Institute of Molecular Physiology, Shenzhen Bay Laboratory, Shenzhen, China
- *Correspondence: Yifan Hong, ; Guorong Fan,
| | - Guorong Fan
- Tongji University School of Medicine, Shanghai, China
- Department of Clinical Pharmacy, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- *Correspondence: Yifan Hong, ; Guorong Fan,
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Đorđević K, Peličić M, Bumbaširević U, Ćorić V. The association of SOD2 and GST gene polymorphisms with the risk of development and prognosis of papillary renal cell carcinoma. Medicinski podmladak 2022. [DOI: 10.5937/mp73-35160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Introduction: Redox imbalance is an important factor in both carcinogenesis and progression of renal cell carcinoma. Numerous studies are focused on finding potential biomarkers that can aid in early detection, as well as in monitoring disease progression. Among the candidates there are genes coding for antioxidant enzymes - superoxide dismutase 2 (SOD2) and glutathione S -transferase (GST). Aim: This study aims to assess the role of SOD2 and GST genes polymorphisms as risk biomarkers for papillary renal cell carcinoma (pRCC), along with their impact on the survival of these patients. Material and methods: This study included 39 patients and 336 controls. The following polymorphisms were determined by appropriate PCR methods: SOD2 (rs4880), GSTA1 C69T, GSTM1, GSTT1, and GSTP1 (rs1695) . ELISA method was used to measure 8-hydroxy-2'-deoxyguanosine (8-OHdG) and benzo(a)pyrene diol epoxide (BPDE)-DNA adducts plasma level. The effect of the polymorphisms on postoperative prognosis was examined using the available survival data. Results: There was no significant difference in the distribution of SOD2, GSTA1, GSTM1, and GSTT1 gene variants between patients and controls (p > 0.05). However GSTP1 variant (GSTP1 * IleVal + ValVal) genotype was statistically significantly more frequent in patients compared to controls (p < 0.05). Similarly, carriers of GSTP1 variant genotype were at significantly higher risk of developing carcinoma compared to carriers of GSTP1 reference genotype (OR = 16.103, 95% IP = 2.036 - 127.398). There was no association between the level of both 8-OHdG and BPDE-DNA adducts, and different genotypes (p > 0.05). The investigated polymorphisms did not show any prognostic significance (p > 0.05). Conclusion: These results indicate that the GSTP1 variant genotype was related to an increased risk of papillary renal cell carcinoma development. In order to fully understand the effect of investigated polymorphisms as a potential risk and prognostic biomarkers of this cancer, further research with a bigger sample size and longer follow-up are required.
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Panaiyadiyan S, Quadri JA, Nayak B, Pandit S, Singh P, Seth A, Shariff A. Association of heavy metals and trace elements in renal cell carcinoma: A case-controlled study. Urol Oncol 2021; 40:111.e11-111.e18. [PMID: 34961684 DOI: 10.1016/j.urolonc.2021.11.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Revised: 10/17/2021] [Accepted: 11/15/2021] [Indexed: 02/05/2023]
Abstract
PURPOSE Trace elements and/or heavy metals are important for various biological activities. However, excess amount of these elements is associated with a variety of diseases, including cancer. We aimed to analyse the alterations of trace elements levels in renal cell carcinoma (RCC) patients. MATERIALS AND METHODS In this observational study, patients with biopsy proven RCC were taken as study group while age- and sex-matched healthy volunteers were taken as control. Blood and urine samples were compared for Arsenic (As), Copper (Cu), Manganese (Mn), Selenium (Se), Cadmium (Cd), Lead (Pb) and Mercury (Hg) levels measured by inductively coupled plasma mass-spectroscopy. Serum glutathione peroxidase (GSH-Px), superoxide dismutase (SOD) antioxidant enzymes and lipid peroxidation (LPO) levels were assessed to know the redox status between 2 groups. RESULTS A total of 76 RCC cases and 64 controls were recruited in the study. A significantly higher concentration of As, Cu, Mn, Cd, Pb and Hg were observed in the blood of RCC patients as compared to controls. However, blood Se level was significantly lower in RCC patients. In 33 (43.4%) patients, one or more heavy metals were higher in the blood above their permitted level as compared to 10 (15.6%) subjects in control group. RCC patients had a higher urinary Mn and Se levels compared to controls. A significantly lower GSH-Px (182.08 ± 132.91 vs. 236.95 ± 132.94, P = 0.04) and a higher LPO levels (26.02 ± 20.79 vs. 14.06 ± 8.44, P = 0.003) were noted in RCC patients than controls. SOD levels were comparable between two groups. CONCLUSIONS A significantly altered heavy metals concentration is noted in the blood and urine in RCC patients as compared to healthy controls. An associated lower levels of GSH-Px antioxidant enzyme and increased LPO in RCC patients signifies an imbalance in the redox status.
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Affiliation(s)
- Sridhar Panaiyadiyan
- Department of Urology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
| | - Javed Ahsan Quadri
- Clinical Ecotoxicology (diagnostic and Research) Facility, Department of Anatomy, All India Institute of Medical Sciences, New Delhi, India; Department of Anatomy, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
| | - Brusabhanu Nayak
- Department of Urology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India.
| | - Surabhi Pandit
- Department of Urology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India; Clinical Ecotoxicology (diagnostic and Research) Facility, Department of Anatomy, All India Institute of Medical Sciences, New Delhi, India
| | - Prabhjot Singh
- Department of Urology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
| | - Amlesh Seth
- Department of Urology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
| | - Ahmadullah Shariff
- Clinical Ecotoxicology (diagnostic and Research) Facility, Department of Anatomy, All India Institute of Medical Sciences, New Delhi, India; Department of Anatomy, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
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Qi-Dong X, Yang X, Lu JL, Liu CQ, Sun JX, Li C, Wang SG. Development and Validation of a Nine-Redox-Related Long Noncoding RNA Signature in Renal Clear Cell Carcinoma. Oxid Med Cell Longev 2020; 2020:6634247. [PMID: 33425212 DOI: 10.1155/2020/6634247] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 11/24/2020] [Accepted: 12/11/2020] [Indexed: 12/15/2022]
Abstract
Background Redox plays an essential role in the pathogeneses and progression of tumors, which could be regulated by long noncoding RNA (lncRNA). We aimed to develop and verify a novel redox-related lncRNA-based prognostic signature for clear cell renal cell carcinoma (ccRCC). Materials and Methods A total of 530 ccRCC patients from The Cancer Genome Atlas (TCGA) were included in this study. All the samples were randomly split into training and test group at a 1 : 1 ratio. Then, we screened differentially expressed redox-related lncRNAs and constructed a novel prognostic signature from the training group using the least absolute shrinkage and selection operation (LASSO) and COX regression. Next, to verify the accuracy of the signature, we conducted risk and survival analysis, as well as the construction of ROC curve, nomogram, and calibration curves in the training group, test group, and all samples. Finally, the redox gene-redox-related lncRNA interaction network was constructed, and gene set enrichment analysis (GSEA) was performed to investigate the status of redox-related functions between high/low-risk groups. Results A nine-redox-related lncRNA signature consisted of AC025580.3, COLCA1, AC027601.2, DLEU2, AC004918.3, AP006621.2, AL031670.1, SPINT1-AS1, and LAMA5-AS1 was significantly associated with overall survival in ccRCC patients. The signature proved efficient, and thus, a nomogram was successfully assembled. In addition, the GSEA results demonstrated that two major redox-related functions were enhanced in the high-risk group ccRCC patients. Conclusions Our findings robustly demonstrate that the nine-redox-related lncRNA signature could serve as an efficient prognostic indicator for ccRCC.
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Ene CD, Penescu MN, Georgescu SR, Tampa M, Nicolae I. Posttranslational Modifications Pattern in Clear Cell Renal Cell Carcinoma. Metabolites 2020; 11:10. [PMID: 33375435 PMCID: PMC7824589 DOI: 10.3390/metabo11010010] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 12/18/2020] [Accepted: 12/21/2020] [Indexed: 02/07/2023] Open
Abstract
Posttranslational modifications are dynamic enzymatic-mediated processes, regulated in time and space, associated with cancer development. We aimed to evaluate the significance of posttranslational modifications in the pathogenesis of clear cell renal cell carcinoma. The authors developed a prospective, observational study during a period of three years and included 55 patients with localized renal cell carcinoma and 30 heathy subjects. Glycosylation, nitration and carbonylation, thiol-disulfide homeostasis, methylation, phosphorylation and proteolytic cleavage were evaluated in the serum of the evaluated subjects in the present study. Our results showed some characteristics for early ccRCC: high production of cytokines, substrate hypersialylation, induced nitrosative and carbonylic stress, arginine hypermethylation, thiol/disulfide homeostasis (TDH) alteration, the regulatory role of soluble receptors (sRAGE, sIL-6R) in RAGE and IL-6 signaling, the modulatory effect of TK-1and TuM2-PK in controlling the level of phosphometabolites in neoplastic cells. These data could be the initial point for development of a panel of biomarkers such as total sialic acid, orosomucoids, nitrotyrosine, carbonylic metabolites, ADMA, SDMA, and thiol-disulfide equilibrium for early diagnosis of ccRCC. Moreover, they could be considered a specific disease PTM signature which underlines the transition from early to advanced stages in this neoplasia, and of a therapeutic target in kidney oncogenesis.
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Affiliation(s)
- Corina Daniela Ene
- Faculty of General Medicine, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania; (M.N.P.); (S.R.G.); (M.T.)
- Carol Davila Clinical Hospital of Nephrology, 010731 Bucharest, Romania
| | - Mircea Nicolae Penescu
- Faculty of General Medicine, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania; (M.N.P.); (S.R.G.); (M.T.)
- Carol Davila Clinical Hospital of Nephrology, 010731 Bucharest, Romania
| | - Simona Roxana Georgescu
- Faculty of General Medicine, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania; (M.N.P.); (S.R.G.); (M.T.)
- Victor Babes Clinical Hospital of Tropical and Infectious Diseases, 030303 Bucharest, Romania;
| | - Mircea Tampa
- Faculty of General Medicine, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania; (M.N.P.); (S.R.G.); (M.T.)
- Victor Babes Clinical Hospital of Tropical and Infectious Diseases, 030303 Bucharest, Romania;
| | - Ilinca Nicolae
- Victor Babes Clinical Hospital of Tropical and Infectious Diseases, 030303 Bucharest, Romania;
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Behnisch-Cornwell S, Wolff L, Bednarski PJ. The Effect of Glutathione Peroxidase-1 Knockout on Anticancer Drug Sensitivities and Reactive Oxygen Species in Haploid HAP-1 Cells. Antioxidants (Basel) 2020; 9:E1300. [PMID: 33353055 DOI: 10.3390/antiox9121300] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 12/15/2020] [Accepted: 12/16/2020] [Indexed: 12/17/2022] Open
Abstract
The role of glutathione peroxidases (GPx) in cancer and their influence on tumor prognosis and the development of anticancer drug resistance has been extensively and controversially discussed. The aim of this study was to evaluate the influence of GPx1 expression on anticancer drug cytotoxicity. For this purpose, a GPx1 knockout of the near-haploid human cancer cell line HAP-1 was generated and compared to the native cell line with regards to morphology, growth and metabolic rates, and oxidative stress defenses. Furthermore, the IC50 values of two peroxides and 16 widely used anticancer drugs were determined in both cell lines. Here we report that the knockout of GPx1 in HAP-1 cells has no significant effect on cell size, viability, growth and metabolic rates. Significant increases in the cytotoxic potency of hydrogen peroxide and tert-butylhydroperoxide, the anticancer drugs cisplatin and carboplatin as well as the alkylating agents lomustine and temozolomide were found. While a concentration dependent increases in intracellular reactive oxygen species (ROS) levels were observed for both HAP-1 cell lines treated with either cisplatin, lomustine or temozolamide, no significant enhancement in ROS levels was observed in the GPx1 knockout compared to the native cell line except at the highest concentration of temozolamide. On the other hand, a ca. 50% decrease in glutathione levels was noted in the GPx1 knockout relative to the native line, suggesting that factors other than ROS levels alone play a role in the increased cytotoxic activity of these drugs in the GPx1 knockout cells.
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Wang S, Yang J, You L, Dai M, Zhao Y. GSTM3 Function and Polymorphism in Cancer: Emerging but Promising. Cancer Manag Res 2020; 12:10377-10388. [PMID: 33116892 PMCID: PMC7585806 DOI: 10.2147/cmar.s272467] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 09/23/2020] [Indexed: 12/17/2022] Open
Abstract
Cancer is a major cause of human mortality; however, the molecular mechanisms and proteomic biomarkers that cause tumor progression in malignant tumors are either unknown or only partially revealed. Glutathione S-transferases mu3 (GSTM3), which belongs to a family of xenobiotic detoxifying phase II enzymes, is associated with carcinogen detoxification and the metabolism of exogenous electrophilic substances. It has been reported that GSTM3 has different polymorphisms in various tumor cells and regulates tumorigenesis, cell invasion, metastasis, chemoresistance, and oxidative stress. Deep research into the regulatory mechanisms involved in disorders of GSTM3 expression and the function of GSTM3 in different cancers may facilitate improvements in cancer prevention and targeted therapy. The combination of GSTM3 with other family members can regulate the carcinogenesis and susceptibility to different cancers in humans. GSTM3 also regulates the reactive oxygen species (ROS) and participates in oxidative stress-mediated pathology. Here, we provide a general introduction to GSTM3 in order to better understand the role of GSTM3 in cancer.
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Affiliation(s)
- Shunda Wang
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Jinshou Yang
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Lei You
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Menghua Dai
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Yupei Zhao
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
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Pljesa-Ercegovac M, Savic-Radojevic A, Coric V, Radic T, Simic T. Glutathione transferase genotypes may serve as determinants of risk and prognosis in renal cell carcinoma. Biofactors 2020; 46:229-238. [PMID: 31483924 DOI: 10.1002/biof.1560] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 08/18/2019] [Indexed: 12/25/2022]
Abstract
Renal cell carcinoma (RCC) represents a group of histologically similar neoplasms with significant intratumor and intertumor genetic heterogeneity. Recognized risk factors for RCC development include smoking, hypertension, obesity, as well as von Hippel-Lindau (VHL) disease. Inactivation of VHL, deregulated nuclear factor (erythroid-derived 2)-like 2 (Nrf2) pathway, and altered redox homeostasis, together with changes in glutathione transferase (GST) profile, are considered as important contributing factors in RCC development and progression. Although the available results of both gene-gene and gene-environment analysis are quite heterogeneous, they clearly indicate that certain GST genotypes may play a role as risk modifiers, either individually or in combination with other Phase I or Phase II gene polymorphisms, as well as in subjects exposed to relevant substrates. Seemingly, GST genotyping could identify individuals with impaired detoxification in renal parenchyma that are at higher risk of developing RCC. In addition to well established roles of GSTs in conjugation and biotransformation of xenobiotics, GSTs have emerged as significant regulators of pathways determining cell proliferation and survival. Indeed, there are evidence in favor of GST significance, not only in terms of risk for RCC development, but also with respect to progression and prognosis. So far, GSTM1-active genotype was confirmed to be an independent predictor of higher risk of overall mortality. Therefore, it is reasonable to assume that certain GST variants may assist in individual RCC risk assessment, as well as postoperative prognosis. Even more, GST profiling might contribute to development of personalized targeted therapy in RCC patients.
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Affiliation(s)
- Marija Pljesa-Ercegovac
- Institute of Medical and Clinical Biochemistry, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Ana Savic-Radojevic
- Institute of Medical and Clinical Biochemistry, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Vesna Coric
- Institute of Medical and Clinical Biochemistry, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Tanja Radic
- Institute of Medical and Clinical Biochemistry, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Tatjana Simic
- Institute of Medical and Clinical Biochemistry, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
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Nantes CI, Pereira ID, Bai R, Hamel E, Burnett JC, de Oliveira RJ, de F C Matos M, Beatriz A, Yonekawa MKA, Perdomo RT, de Lima DP, Bogo D, Dos A Dos Santos E. S-(4-Methoxyphenyl)-4-methoxybenzenesulfonothioate as a Promising Lead Compound for the Development of a Renal Carcinoma Agent. ChemMedChem 2020; 15:449-458. [PMID: 31834975 DOI: 10.1002/cmdc.201900566] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 12/09/2019] [Indexed: 12/15/2022]
Abstract
Organosulfur compounds show cytotoxic potential towards many tumor cell lines. Disulfides and thiosulfonates act through apoptotic processes, inducing proteins associated with apoptosis, endoplasmic reticulum stress, and the unfolded protein response. Three p-substituted symmetric diaryl disulfides and three diaryl thiosulfonates were synthesized and analyzed for inhibition of tubulin polymerization and for human cancer cell cytotoxic activity against seven tumor cell lines and a non-tumor cell line. S-(4-methoxyphenyl)-4-methoxybenzenesulfonothioate (6) exhibited inhibition of tubulin polymerization and showed the best antiproliferative potential, especially against the 786-0 cell line, being six times more selective as compared with the non-tumor cell line. In addition, compound 6 was able to activate caspase-3 after 24 and 48 h treatments of the 786-0 cell line and induced cell-cycle arrest in the G2/M stage at the highest concentration evaluated at 24 and 48 h. Compound 6 was able to cause complete inhibition of proliferation, inducing the death of 786-0 cells, by increasing the number of cells at G2/M and greater activation of caspase-3.
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Affiliation(s)
- Camilla I Nantes
- Laboratório de Biologia Molecular e Culturas Celulares Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso do Sul, Av. Costa e Silva s/n, Cidade Universitária, CEP 79070-900, Campo Grande - MS, Brazil
| | - Ingrid D Pereira
- Laboratório de Pesquisa 4 - Instituto de Química, Universidade Federal de Mato Grosso do Sul, Av. Senador Müller, 1555, CEP 79070-900, Campo Grande - MS, Brazil
| | - Ruoli Bai
- Screening Technologies Branch, Developmental Therapeutics Program Division of Cancer Treatment and Diagnosis, Frederick National Laboratory National Cancer Institute (NCI), Frederick, MD 21702, USA
| | - Ernest Hamel
- Screening Technologies Branch, Developmental Therapeutics Program Division of Cancer Treatment and Diagnosis, Frederick National Laboratory National Cancer Institute (NCI), Frederick, MD 21702, USA
| | - James C Burnett
- Computational Drug Development Group, Screening Technologies Branch Developmental Therapeutics Program Division of Cancer Treatment and Diagnosis Frederick National Laboratory, National Cancer Institute (NCI), Frederick, MD 21702, USA
| | - Rodrigo J de Oliveira
- Centro de Estudos e Células Tronco Terapia Celular e Genética Toxicológica, Universidade Federal de Mato Grosso do Sul, CeTroGen NHU, Campo Grande - MS, Brazil
| | - Maria de F C Matos
- Laboratório de Biologia Molecular e Culturas Celulares Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso do Sul, Av. Costa e Silva s/n, Cidade Universitária, CEP 79070-900, Campo Grande - MS, Brazil
| | - Adilson Beatriz
- Laboratório de Pesquisa 4 - Instituto de Química, Universidade Federal de Mato Grosso do Sul, Av. Senador Müller, 1555, CEP 79070-900, Campo Grande - MS, Brazil
| | - Murilo K A Yonekawa
- Laboratório de Bioquímica Geral e de Microrganismos Instituto de Biociências, Universidade Federal de Mato Grosso do Sul Av. Costa e Silva s/n, Cidade Universitária, CEP 79070-900, Campo Grande - MS, Brazil
| | - Renata T Perdomo
- Laboratório de Biologia Molecular e Culturas Celulares Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso do Sul, Av. Costa e Silva s/n, Cidade Universitária, CEP 79070-900, Campo Grande - MS, Brazil
| | - Dênis P de Lima
- Laboratório de Pesquisa 4 - Instituto de Química, Universidade Federal de Mato Grosso do Sul, Av. Senador Müller, 1555, CEP 79070-900, Campo Grande - MS, Brazil
| | - Danielle Bogo
- Laboratório de Biologia Molecular e Culturas Celulares Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso do Sul, Av. Costa e Silva s/n, Cidade Universitária, CEP 79070-900, Campo Grande - MS, Brazil
| | - Edson Dos A Dos Santos
- Laboratório de Bioquímica Geral e de Microrganismos Instituto de Biociências, Universidade Federal de Mato Grosso do Sul Av. Costa e Silva s/n, Cidade Universitária, CEP 79070-900, Campo Grande - MS, Brazil
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12
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Pavlović I, Pejić S, Radojević-Škodrić S, Todorović A, Stojiljković V, Gavrilović L, Popović N, Basta-Jovanović G, Džamić Z, Pajović SB. The effect of antioxidant status on overall survival in renal cell carcinoma. Arch Med Sci 2020; 16:94-101. [PMID: 32051711 PMCID: PMC6963148 DOI: 10.5114/aoms.2019.86818] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 07/26/2017] [Indexed: 01/03/2023] Open
Abstract
INTRODUCTION The oxidative stress contributes to all three phases of carcinogenesis and represents a concomitant condition in renal cell carcinoma (RCC). RCC is the most common type of neoplasm of the kidney, and despite numerous studies the set of predictive and prognostic markers of survival are still unknown. The aim of our study was to examine the relation between antioxidant (AO) status and overall survival (OS) in RCC patients. MATERIAL AND METHODS Our study included 95 patients with RCC, who underwent radical nephrectomy. We analysed the prognostic role of antioxidant enzymes (superoxide dismutase, catalase, glutathione peroxidase, glutathione S-transferase, glutathione reductase, glutathione, and malondialdehyde) and other clinicopathological factors (size, grade, stage, and histological subtype) on the OS of RCC patients. RESULTS The 5-year OS was 54.6%. The survival analysis related to AO parameters showed no significant difference in survival of RCC patients. The concentration of malondialdehyde, an indicator of lipid peroxidation, also had no significant effect on the survival rate of RCC patients. Univariate and multivariate analysis confirmed the significance of clinicopathological parameters (size, p < 0.001; Fuhrman grade, p = 0.001, and stage, p < 0.001) for patients' survival. CONCLUSIONS In our cohort of patients, different antioxidant parameters were not found to be predictors for OS of patients with RCC, who underwent radical nephrectomy.
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Affiliation(s)
- Ivan Pavlović
- Laboratory of Molecular Biology and Endocrinology, “Vinča” Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
| | - Snežana Pejić
- Laboratory of Molecular Biology and Endocrinology, “Vinča” Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
| | | | - Ana Todorović
- Laboratory of Molecular Biology and Endocrinology, “Vinča” Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
| | - Vesna Stojiljković
- Laboratory of Molecular Biology and Endocrinology, “Vinča” Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
| | - Ljubica Gavrilović
- Laboratory of Molecular Biology and Endocrinology, “Vinča” Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
| | - Nataša Popović
- Laboratory of Molecular Biology and Endocrinology, “Vinča” Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
| | | | - Zoran Džamić
- Clinic of Urology, Clinical Centre of Serbia, School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Snežana B. Pajović
- Laboratory of Molecular Biology and Endocrinology, “Vinča” Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
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13
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Radic T, Coric V, Bukumiric Z, Pljesa-Ercegovac M, Djukic T, Avramovic N, Matic M, Mihailovic S, Dragicevic D, Dzamic Z, Simic T, Savic-Radojevic A. GSTO1*CC Genotype (rs4925) Predicts Shorter Survival in Clear Cell Renal Cell Carcinoma Male Patients. Cancers (Basel) 2019; 11:E2038. [PMID: 31861116 DOI: 10.3390/cancers11122038] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 12/08/2019] [Accepted: 12/13/2019] [Indexed: 01/09/2023] Open
Abstract
Omega class glutathione transferases, GSTO1-1 and GSTO2-2, exhibit different activities involved in regulation of inflammation, apoptosis and redox homeostasis. We investigated the the prognostic significance of GSTO1 (rs4925) and GSTO2 (rs156697 and rs2297235) polymorphisms in clear cell renal cell carcinoma (ccRCC) patients. GSTO1-1 and GSTO2-2 expression and phosphorylation status of phosphoinositide 3-kinase (PI3K)/protein kinase B (Akt)/ /mammalian target of rapamycin (mTOR) and Raf/MEK/extracellular signal-regulated kinase (ERK) signaling pathways in non-tumor and tumor ccRCC tissue, as well as possible association of GSTO1-1 with signaling molecules were also assessed. GSTO genotyping was performed by quantitative PCR in 228 ccRCC patients, while expression and immunoprecipitation were analyzed by Western blot in 30 tissue specimens. Shorter survival in male carriers of GSTO1*C/C wild-type genotype compared to the carriers of at least one variant allele was demonstrated (p = 0.049). GSTO1*C/C genotype independently predicted higher risk of overall mortality among male ccRCC patients (p = 0.037). Increased expression of GSTO1-1 and GSTO2-2 was demonstrated in tumor compared to corresponding non-tumor tissue (p = 0.002, p = 0.007, respectively), while GSTO1 expression was correlated with interleukin-1β (IL-1β)/pro-interleukin-1β (pro-IL-1β) ratio (r = 0.260, p = 0.350). Interaction of GSTO1 with downstream effectors of investigated pathways was shown in ccRCC tumor tissue. This study demonstrated significant prognostic role of GSTO1 polymorphism in ccRCC. Up-regulated GSTO1-1 and GSTO2-2 in tumor tissue might contribute to aberrant ccRCC redox homeostasis.
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14
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Costa JG, Saraiva N, Batinic-Haberle I, Castro M, Oliveira NG, Fernandes AS. The SOD Mimic MnTnHex-2-PyP 5+ Reduces the Viability and Migration of 786-O Human Renal Cancer Cells. Antioxidants (Basel) 2019; 8:antiox8100490. [PMID: 31627290 PMCID: PMC6826590 DOI: 10.3390/antiox8100490] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 10/08/2019] [Accepted: 10/12/2019] [Indexed: 12/28/2022] Open
Abstract
Clear-cell renal carcinoma (ccRCC) is the most common type of renal cancer. The importance of oxidative stress in the context of this disease has been described, although there is only little information concerning the role of superoxide dismutase (SOD) enzymes. The importance of SOD in different pathological conditions promoted the development of SOD mimics (SODm). As such, manganese(III) porphyrins can mimic the natural SOD enzymes and scavenge different reactive oxygen species (ROS), thus modulating the cellular redox status. In this study, the exposure of 786-O human renal cancer cells to MnTnHex-2-PyP5+ (MnP), a very promising SODm, led to a concentration and time-dependent decrease in cell viability and in the cell proliferation indices, as well as to an increase in apoptosis. No relevant effects in terms of micronuclei formation were observed. Moreover, the exposure to MnP resulted in a concentration-dependent increase in intracellular ROS, presumably due to the generation of H2O2 by the inherent redox mechanisms of MnP, along with the limited ability of cancer cells to detoxify this species. Although the MnP treatment did not result in a reduction in the collective cell migration, a significant decrease in chemotactic migration was observed. Overall, these results suggest that MnP has a beneficial impact on reducing renal cancer cell viability and migration and warrant further studies regarding SODm-based therapeutic strategies against human renal cancer.
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Affiliation(s)
- João G Costa
- Research Center for Biosciences & Health Technologies (CBIOS), Universidade Lusófona de Humanidades e Tecnologias, Campo Grande 376, 1749-024 Lisboa, Portugal.
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Professor Gama Pinto, 1649-003 Lisboa, Portugal.
| | - Nuno Saraiva
- Research Center for Biosciences & Health Technologies (CBIOS), Universidade Lusófona de Humanidades e Tecnologias, Campo Grande 376, 1749-024 Lisboa, Portugal.
| | - Ines Batinic-Haberle
- Department of Radiation Oncology, Duke University School of Medicine, Durham, NC 27710, USA.
| | - Matilde Castro
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Professor Gama Pinto, 1649-003 Lisboa, Portugal.
| | - Nuno G Oliveira
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Professor Gama Pinto, 1649-003 Lisboa, Portugal.
| | - Ana S Fernandes
- Research Center for Biosciences & Health Technologies (CBIOS), Universidade Lusófona de Humanidades e Tecnologias, Campo Grande 376, 1749-024 Lisboa, Portugal.
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15
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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16
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Abstract
Peroxisomes are key metabolic organelles, which contribute to cellular lipid metabolism, e.g. the β-oxidation of fatty acids and the synthesis of myelin sheath lipids, as well as cellular redox balance. Peroxisomal dysfunction has been linked to severe metabolic disorders in man, but peroxisomes are now also recognized as protective organelles with a wider significance in human health and potential impact on a large number of globally important human diseases such as neurodegeneration, obesity, cancer, and age-related disorders. Therefore, the interest in peroxisomes and their physiological functions has significantly increased in recent years. In this review, we intend to highlight recent discoveries, advancements and trends in peroxisome research, and present an update as well as a continuation of two former review articles addressing the unsolved mysteries of this astonishing organelle. We summarize novel findings on the biological functions of peroxisomes, their biogenesis, formation, membrane dynamics and division, as well as on peroxisome-organelle contacts and cooperation. Furthermore, novel peroxisomal proteins and machineries at the peroxisomal membrane are discussed. Finally, we address recent findings on the role of peroxisomes in the brain, in neurological disorders, and in the development of cancer.
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Affiliation(s)
- Markus Islinger
- Institute of Neuroanatomy, Center for Biomedicine and Medical Technology Mannheim, Medical Faculty Manheim, University of Heidelberg, 68167, Mannheim, Germany
| | - Alfred Voelkl
- Institute for Anatomy and Cell Biology, University of Heidelberg, 69120, Heidelberg, Germany
| | - H Dariush Fahimi
- Institute for Anatomy and Cell Biology, University of Heidelberg, 69120, Heidelberg, Germany
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17
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Wang Y, Yang ZY, Chen YH, Li F, Shen H, Yu Y, Huang HY, Shen ZY. A novel functional polymorphism of GSTM3 reduces clear cell renal cell carcinoma risk through enhancing its expression by interfering miR-556 binding. J Cell Mol Med 2018; 22:3005-3015. [PMID: 29569387 PMCID: PMC5980204 DOI: 10.1111/jcmm.13528] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 12/06/2017] [Indexed: 01/20/2023] Open
Abstract
Dysregulation of glutathione‐S‐transferase M3 (GSTM3) has been related to clear cell renal cell carcinoma (ccRCC) in our former study. GSTM3 plays a pivotal role of detoxification and clearance of reactive oxygen species (ROS) in tumour tissues. This study aimed to examine: (1) the associations between GSTM3 single nucleotide polymorphisms (SNPs) and risk of ccRCC, and (2) the potential molecular mechanism accounting for its effects. 5 SNPs in 3′UTR of GSTM3 were initially genotyped in 329 cases and 420 healthy controls. A SNP‐rs1055259 was found to be significantly associated with the susceptibility of ccRCC (OR = 0.59, 95% CI = 0.41‐0.92; P = .019). The minor allele of rs1055259 (G allele) was associated with RCC risk. This SNP was predicted to affect microRNA (miR)‐556 binding to 3′UTR of GSTM3 mRNA. To determine the functional impact, plasmid constructs carrying different alleles of rs1055259 were created. Compared to rs1055259 A‐allele constructs, cells transfected with rs1055259 G‐allele construct had higher transcriptional activity and were less responsive to miR‐556 changes and gene expression. Elevated GSTM3 expression in G‐allele cells was associated with ROS activity and ccRCC development. Taken together, this study indicated that a functional polymorphism of GSTM3 ‐rs1055259 reduced susceptibility of RCC in the Chinese population. It influenced GSTM3 protein synthesis by interfering miR‐556 binding, subsequently suppressed ROS activity and ccRCC progression.
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Affiliation(s)
- Ying Wang
- Department of Cardiovascular Surgery, First Affiliated Hospital & Institute for Cardiovascular Science, Soochow University, Suzhou, Jiangsu, China
| | - Zi-Ying Yang
- Department of Cardiovascular Surgery, First Affiliated Hospital & Institute for Cardiovascular Science, Soochow University, Suzhou, Jiangsu, China
| | - Yi-Huan Chen
- Department of Cardiovascular Surgery, First Affiliated Hospital & Institute for Cardiovascular Science, Soochow University, Suzhou, Jiangsu, China
| | - Feng Li
- Department of Urinary Surgery, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Han Shen
- Department of Cardiovascular Surgery, First Affiliated Hospital & Institute for Cardiovascular Science, Soochow University, Suzhou, Jiangsu, China
| | - You Yu
- Department of Cardiovascular Surgery, First Affiliated Hospital & Institute for Cardiovascular Science, Soochow University, Suzhou, Jiangsu, China
| | - Hao-Yue Huang
- Department of Cardiovascular Surgery, First Affiliated Hospital & Institute for Cardiovascular Science, Soochow University, Suzhou, Jiangsu, China
| | - Zhen-Ya Shen
- Department of Cardiovascular Surgery, First Affiliated Hospital & Institute for Cardiovascular Science, Soochow University, Suzhou, Jiangsu, China
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18
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Coric VM, Simic TP, Pekmezovic TD, Basta-Jovanovic GM, Savic Radojevic AR, Radojevic-Skodric SM, Matic MG, Dragicevic DP, Radic TM, Bogdanovic LM, Dzamic ZM, Pljesa-Ercegovac MS. Combined GSTM1-Null, GSTT1-Active, GSTA1 Low-Activity and GSTP1-Variant Genotype Is Associated with Increased Risk of Clear Cell Renal Cell Carcinoma. PLoS One 2016; 11:e0160570. [PMID: 27500405 DOI: 10.1371/journal.pone.0160570] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Accepted: 07/21/2016] [Indexed: 01/18/2023] Open
Abstract
The aim of this study was to evaluate specific glutathione S-transferase (GST) gene variants as determinants of risk in patients with clear cell renal cell carcinoma (cRCC), independently or simultaneously with established RCC risk factors, as well as to discern whether phenotype changes reflect genotype-associated risk. GSTA1, GSTM1, GSTP1 and GSTT1 genotypes were determined in 199 cRCC patients and 274 matched controls. Benzo(a)pyrene diolepoxide (BPDE)-DNA adducts were determined in DNA samples obtained from cRCC patients by ELISA method. Significant association between GST genotype and risk of cRCC development was found for the GSTM1-null and GSTP1-variant genotype (p = 0.02 and p<0.001, respectively). Furthermore, 22% of all recruited cRCC patients were carriers of combined GSTM1-null, GSTT1-active, GSTA1-low activity and GSTP1-variant genotype, exhibiting 9.32-fold elevated cRCC risk compared to the reference genotype combination (p = 0.04). Significant association between GST genotype and cRCC risk in smokers was found only for the GSTP1 genotype, while GSTM1-null/GSTP1-variant/GSTA1 low-activity genotype combination was present in 94% of smokers with cRCC, increasing the risk of cRCC up to 7.57 (p = 0.02). Furthermore, cRCC smokers with GSTM1-null genotype had significantly higher concentration of BPDE-DNA adducts in comparison with GSTM1-active cRCC smokers (p = 0.05). GSTM1, GSTT1, GSTA1 and GSTP1 polymorphisms might be associated with the risk of cRCC, with special emphasis on GSTM1-null and GSTP1-variant genotypes. Combined GSTM1-null, GSTT1-active, GSTA1 low activity and GSTP1-variant genotypes might be considered as "risk-carrying genotype combination" in cRCC.
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19
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Zhang P, Yin H, Wang S, Wei Y, Peng N, Bi W, Wang X. Different effects of H2O2 treatment on cervical squamous carcinoma cells and adenocarcinoma cells. Arch Med Sci 2015; 11:1308-13. [PMID: 26788095 PMCID: PMC4697061 DOI: 10.5114/aoms.2015.56356] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Accepted: 01/23/2014] [Indexed: 11/25/2022] Open
Abstract
INTRODUCTION This study aims to compare the antioxidant abilities of cervical squamous carcinoma cells and cervical adenocarcinoma cells and to study the related mechanisms. MATERIAL AND METHODS Cervical squamous carcinoma and adenocarcinoma cells were treated with H2O2. Cell proliferation was determined with the MTT assay. The reactive oxygen species (ROS) level was detected by the 2',7'-dichlorofluorescein-diacetate (DCFH-DA) method. The 5,5'-dithiobis-2-nitrobenzoic acid (DTNB) method was performed to measure intracellular concentrations of reduced glutathione (GSH) and oxidized glutathione (GSSG). The nitrite formation method, the molybdate colorimetric method, and the DTNB colorimetric method were used to determine activities of superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx), respectively. RESULTS Compared with untreated control cells, cell proliferation of cervical squamous carcinoma cells and cervical adenocarcinoma cells was significantly inhibited by H2O2 treatment (p < 0.05). Reactive oxygen species levels and GSSG levels were significantly increased (p < 0.01), whereas GSH levels were significantly decreased (p < 0.05 or 0.01) in both cells after H2O2 treatment. Thus the ratio of GSH/GSSG was significantly decreased by H2O2 treatment in both cells (p < 0.01). In addition, H2O2 treatment significantly increased activities of SOD, CAT, and GPx in both cells (p < 0.05 or 0.01). Furthermore, the above-mentioned changes induced by H2O2 treatment were more dramatic in cervical squamous carcinoma cells. CONCLUSIONS The antioxidant ability of cervical squamous carcinoma cells is lower than that of cervical adenocarcinoma cells, which may be related to the increased ROS levels in cervical squamous carcinoma cells induced by H2O2 treatments.
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Affiliation(s)
- Peihai Zhang
- Department of Obstetrics and Gynecology, Qilu Hospital, Shandong University, Jinan, Shandong, China
| | - Haiqin Yin
- Department of Obstetrics and Gynecology, Jinan Central Hospital, Shandong University, Jinan, Shandong, China
| | - Sie Wang
- Department of Obstetrics and Gynecology, Jinan Central Hospital, Shandong University, Jinan, Shandong, China
| | - Yuping Wei
- Institute of Biochemistry and Molecular Biology, School of Medicine, Shandong University, Jinan, Shandong, China
| | - Nan Peng
- Department of Obstetrics and Gynecology, Qilu Hospital, Shandong University, Jinan, Shandong, China
| | - Wenxiang Bi
- Institute of Biochemistry and Molecular Biology, School of Medicine, Shandong University, Jinan, Shandong, China
| | - Xiaoyuan Wang
- Department of Gynecology, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong, China
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20
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Aldemir M, Karaguzel E, Okulu E, Gudeloglu A, Ener K, Ozayar A, Erel O. Evaluation of oxidative stress status and antioxidant capacity in patients with renal cell carcinoma. Cent European J Urol 2015; 68:415-20. [PMID: 26855793 PMCID: PMC4742443 DOI: 10.5173/ceju.2015.656] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Revised: 07/11/2015] [Accepted: 07/30/2015] [Indexed: 02/03/2023] Open
Abstract
Introduction We evaluated and compared the serum oxidative stress and antioxidant enzymes in patients with renal cell carcinoma (RCC) and the control group. Material and methods The prospective study consisted of 97 patients with RCC (Group 1) and 80 age and sex matched healthy volunteers (Group 2). Group 1 and 2 were compared concerning serum mean total oxidant status (TOS), total antioxidant capacity (TAC), paraoxonase-1 (PON-1), arylesterase, total thiol, catalase (CAT), myeloperoxidase (MPO) and ceruloplasmin. Results Patients’ mean age was 58.5 ±12.3 and 56.9 ±15.8 years, respectively, in Group 1 and 2. No statistically significant differences were detected between the groups in terms of oxidative stress parameters and antioxidant capacity measured in the serum of patients including, TOS, TAC, PON1, arylesterase, total thiol, CAT, MPO, and ceruloplasmin levels (p >0.05 for all parameters). The PON-1 value was significantly higher in patients with pT1 stage than pT3 stage (p = 0.007). The arylesterase value was significantly higher in patients with Fuhrman's nuclear grade 3 than grade 2 (p = 0.035). There was no correlation between these parameters level and Fuhrman's nuclear grade, stage, or histopathological tumor type. Conclusions Our results demonstrated that evaluation of these parameters in the serum of patients with localized RCC may not be used as a marker to discriminate between patients with RCC and healthy people.
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Affiliation(s)
- Mustafa Aldemir
- Ankara Atatürk Training and Research Hospital, Department of Urology, Ankara, Turkey
| | - Ersagun Karaguzel
- Karadeniz Technical University, Faculty of Medicine, Department of Urology, Trabzon, Turkey
| | - Emrah Okulu
- Ankara Atatürk Training and Research Hospital, Department of Urology, Ankara, Turkey
| | - Ahmet Gudeloglu
- Memorial Ankara Hospital, Department of Urology, Ankara, Turkey
| | - Kemal Ener
- Ankara Atatürk Training and Research Hospital, Department of Urology, Ankara, Turkey
| | - Asim Ozayar
- Ankara Atatürk Training and Research Hospital, Department of Urology, Ankara, Turkey
| | - Ozcan Erel
- Ankara Atatürk Training and Research Hospital, Department of Urology, Ankara, Turkey
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21
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Abstract
SIGNIFICANCE Ionizing radiation is a vital component in the oncologist's arsenal for the treatment of cancer. Approximately 50% of all cancer patients will receive some form of radiation therapy as part of their treatment regimen. DNA is considered the major cellular target of ionizing radiation and can be damaged directly by radiation or indirectly through reactive oxygen species (ROS) formed from the radiolysis of water, enzyme-mediated ROS production, and ROS resulting from altered aerobic metabolism. RECENT ADVANCES ROS are produced as a byproduct of oxygen metabolism, and superoxide dismutases (SODs) are the chief scavengers. ROS contribute to the radioresponsiveness of normal and tumor tissues, and SODs modulate the radioresponsiveness of tissues, thus affecting the efficacy of radiotherapy. CRITICAL ISSUES Despite its prevalent use, radiation therapy suffers from certain limitations that diminish its effectiveness, including tumor hypoxia and normal tissue damage. Oxygen is important for the stabilization of radiation-induced DNA damage, and tumor hypoxia dramatically decreases radiation efficacy. Therefore, auxiliary therapies are needed to increase the effectiveness of radiation therapy against tumor tissues while minimizing normal tissue injury. FUTURE DIRECTIONS Because of the importance of ROS in the response of normal and cancer tissues to ionizing radiation, methods that differentially modulate the ROS scavenging ability of cells may prove to be an important method to increase the radiation response in cancer tissues and simultaneously mitigate the damaging effects of ionizing radiation on normal tissues. Altering the expression or activity of SODs may prove valuable in maximizing the overall effectiveness of ionizing radiation.
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Affiliation(s)
- Aaron K Holley
- 1 Graduate Center for Toxicology, University of Kentucky , Lexington, Kentucky
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22
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Faustino LC, Almeida NAS, Pereira GF, Ramos RG, Soares RM, Morales MM, Pazos-Moura CC, Ortiga-Carvalho TM. Thyroid hormone and estradiol have overlapping effects on kidney glutathione S-transferase-α gene expression. Am J Physiol Endocrinol Metab 2012; 303:E787-97. [PMID: 22829580 DOI: 10.1152/ajpendo.00223.2012] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
α-Class GST (Gsta) represents an essential component of cellular antioxidant defense mechanisms in both the liver and the kidney. Estrogens and thyroid hormones (TH) play central roles in animal development, physiology, and behavior. Evidence of the overlapping functions of thyroid hormones and estrogens has been shown, although the molecular mechanisms are not always clear. We evaluated an interaction between TH and estradiol in regulating kidney Gsta expression and function. First, we observed that female mice expressed greater amounts of Gsta compared with males and showed an opposite pattern of expression in TRβ knock-in mice. To further investigate these sex differences, hypothyroidism was induced by a 5-propyl-2-thiouracil diet, and hyperthyroidism was induced by daily T₃ injections. Hypothyroidism increased kidney Gsta expression in male mice but not in female mice, indicating that sex hormones could be influencing the regulation of Gsta by thyroid hormones. To analyze this hypothesis, ovariectomized females were subjected to hypo- and hyperthyroidism, which led to a male profile of Gsta expression. When hypo- or hyperthyroid ovariectomized mice were treated with 17β-estradiol benzoate, we were able to confirm that estradiol was interfering with TH modulation; Gsta expression is increased by T₃ when estradiol is present and decreased by T₃ when estradiol is absent. Using proximal tubule cells, we also showed that estradiol and T₃ worked together to modulate Gsta expression in an overlapping fashion. In summary, 1) the sex difference in the basal expression of Gsta impacts the detoxification process, 2) kidney Gsta expression is regulated by TH in males and females but in opposite directions, and 3) T₃ and estradiol interact directly in renal proximal cells to regulate Gsta expression in females.
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Affiliation(s)
- Larissa C Faustino
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Cidade Universitária, Rio de Janeiro, RJ, Brazil
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23
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Mo C, Dai Y, Kang N, Cui L, He W. Ectopic expression of human MutS homologue 2 on renal carcinoma cells is induced by oxidative stress with interleukin-18 promotion via p38 mitogen-activated protein kinase (MAPK) and c-Jun N-terminal kinase (JNK) signaling pathways. J Biol Chem 2012; 287:19242-54. [PMID: 22493490 DOI: 10.1074/jbc.m112.349936] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Human MutS homologue 2 (hMSH2), a crucial element of the highly conserved DNA mismatch repair system, maintains genetic stability in the nucleus of normal cells. Our previous studies indicate that hMSH2 is ectopically expressed on the surface of epithelial tumor cells and recognized by both T cell receptor γδ (TCRγδ) and natural killer group 2 member D (NKG2D) on Vδ2 T cells. Ectopically expressed hMSH2 could trigger a γδ T cell-mediated cytolysis. In this study, we showed that oxidative stress induced ectopic expression of hMSH2 on human renal carcinoma cells. Under oxidative stress, both p38 mitogen-activated protein kinase (MAPK) and c-Jun N-terminal kinase (JNK) pathways have been confirmed to mediate the ectopic expression of hMSH2 through the apoptosis-signaling kinase 1 (ASK1) upstream and activating transcription factor 3 (ATF3) downstream of both pathways. Moreover, renal carcinoma cell-derived interleukin (IL)-18 in oxidative stress was a prominent stimulator for ectopically induced expression of hMSH2, which was promoted by interferon (IFN)-γ as well. Finally, oxidative stress or pretreatment with IL-18 and IFN-γ enhanced γδ T cell-mediated cytolysis of renal carcinoma cells. Our results not only establish a mechanism of ectopic hMSH2 expression in tumor cells but also find a biological linkage between ectopic expression of hMSH2 and activation of γδ T cells in stressful conditions. Because γδ T cells play an important role in the early stage of innate anti-tumor response, γδ T cell activation triggered by ectopically expressed hMSH2 may be an important event in immunosurveillance for carcinogenesis.
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Affiliation(s)
- Chen Mo
- Department of Immunology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Peking Union Medical College, Beijing 100005, China
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24
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Asatiani N, Kartvelishvili T, Abuladze M, Asanishvili L, Sapojnikova N. Chromium (VI) can activate and impair antioxidant defense system. Biol Trace Elem Res 2011; 142:388-97. [PMID: 20809274 DOI: 10.1007/s12011-010-8806-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2010] [Accepted: 08/05/2010] [Indexed: 01/20/2023]
Abstract
The changes in glutathione-dependent cycle enzymes and catalase activities under Cr(VI)-induced oxidative stress were investigated in two distinct cell lines: L-41-human epithelial-like cells and HLF-fetal human diploid lung fibroblasts, which differ in tissue origin, proliferation, and antioxidant enzymes activities. The chromium concentrations from 1 to 5 μM cause nontoxic effects and activate antioxidant enzymes to overcome oxidative stress. In spite of some differences in the endogenous antioxidant activities, both cell lines reveal the same range of toxic concentrations (20-30 μM). The irreversible inhibition of glutathione-dependent antioxidant enzymes develops under toxic concentrations and serves as a marker of toxicity. The endogenous antioxidant activity influences time-dependent expression of Cr(VI) toxicity and the dynamics of antioxidant enzymes activity under nontoxic conditions. The cell antioxidant defense system is an important marker of the cell adaptive capacity under nontoxic and toxic conditions.
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Affiliation(s)
- Nino Asatiani
- Department of Physics of Biological Systems, Andronikashvili Institute of Physics, 6, Tamarashvili St, 0177 Tbilisi, Georgia
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25
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Li G, Bell T, Merino EJ. Oxidatively Activated DNA-Modifying Agents for Selective Cytotoxicity. ChemMedChem 2011; 6:869-75. [DOI: 10.1002/cmdc.201100014] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2011] [Revised: 01/24/2011] [Indexed: 01/28/2023]
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26
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Searchfield L, Price SA, Betton G, Jasani B, Riccardi D, Griffiths DFR. Glutathione S-transferases as molecular markers of tumour progression and prognosis in renal cell carcinoma. Histopathology 2011; 58:180-90. [DOI: 10.1111/j.1365-2559.2010.03733.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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27
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Fu TY, Hou YY, Chu ST, Liu CF, Huang CH, Chen HC, Hsiao M, Lu PJ, Wang JS, Ger LP. Manganese superoxide dismutase and glutathione peroxidase as prognostic markers in patients with buccal mucosal squamous cell carcinomas. Head Neck 2011; 33:1606-15. [DOI: 10.1002/hed.21653] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2010] [Revised: 09/10/2010] [Accepted: 09/22/2010] [Indexed: 01/05/2023] Open
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28
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Alshabanah OA, Hafez MM, Al-Harbi MM, Hassan ZK, Al Rejaie SS, Asiri YA, Sayed-Ahmed MM. Doxorubicin toxicity can be ameliorated during antioxidant L-carnitine supplementation. Oxid Med Cell Longev 2010; 3:428-33. [PMID: 21307642 PMCID: PMC3154045 DOI: 10.4161/oxim.3.6.14416] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Doxorubicin is an antibiotic broadly used in treatment of different types of solid tumors. The present study investigates whether L-carnitine, antioxidant agent, can reduce the hepatic damage induced by doxorubicin. Male Wistar albino rats were divided into six groups: group 1 was intraperitoneal injected with normal saline for 10 consecutive days; group 2, 3 and 4 were injected every other day with doxorubicin (3 mg/kg, i.p.), to obtain treatments with cumulative doses of 6, 12 and 18 mg/kg. The fifth group was injected with L-carnitine (200 mg/kg, i.p.) for 10 consecutive days and the sixth group was received doxorubicin (18 mg/kg) and L-carnitine (200 mg/kg). High cumulative dose of doxorubicin (18 mg/kg) significantly increases the biochemical levels of alanine transaminase, alkaline phosphatase, total bilirubin, thiobarbituric acid reactive substances (TBARs), total nitrate/nitrite (NOx) p < 0.05 and decrease in glutathione (GSH ), superoxide dismutase (SOD), glutathione peroxidase (GSHP x), glutathione-s-transferase (GST), glutathione reductase (GR) and catalase (CAT) activity p < 0.05. The effect of doxorubicin on the activity of antioxidant genes was confirmed by real time PCR in which the expression levels of these genes in liver tissue were significantly decrease compared to control p < 0.05. Interestingly, L-carnitine supplementation completely reversed the biochemical and gene expression levels induced by doxorubicin to the control values. In conclusion, data from this study suggest that the reduction of antioxidant defense during doxorubicin administration resulted in hepatic injury could be prevented by L-carnitine supplementation by decreasing the oxidative stress and preserving both the activity and gene expression level of antioxidant enzymes.
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Affiliation(s)
- Othman A Alshabanah
- Department of Pharmacology; College of pharmacy, King Saud University, Riyadh Kingdom of Saudi Arabia.
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29
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Frederiks WM, Bosch KS, Hoeben KA, van Marle J, Langbein S. Renal cell carcinoma and oxidative stress: The lack of peroxisomes. Acta Histochem 2010; 112:364-71. [PMID: 19500819 DOI: 10.1016/j.acthis.2009.03.003] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2008] [Revised: 03/11/2009] [Accepted: 03/12/2009] [Indexed: 11/28/2022]
Abstract
Oxidative stress plays an important role in carcinogenesis because of induction of DNA damage and its effects on intracellular signal transduction pathways. Here, we investigated the relationship between the defence against oxidative stress and human renal cell carcinoma that originates from proximal tubular epithelium. Oxygen insensitivity of the histochemical assay of glucose-6-phosphate dehydrogenase (G6PD) activity is a diagnostic tool for the detection of carcinomas. Its mechanism is based on high G6PD activity, reduced superoxide dismutase activity and reduced numbers of peroxisomes in the cancer cells. Five out of the 8 renal carcinomas studied here demonstrated oxygen insensitivity. These carcinomas showed high G6PD activity, whereas the other 3 carcinomas contained lower G6PD activity and were oxygen sensitive like non-cancer cells. Oxygen insensitivity did not correlate with tumour grade, staging or presence of metastases. Electron microscopy and immunofluorescence of catalase showed large numbers of peroxisomes in epithelial cells of proximal tubules of normal human kidney, whereas these organelles were completely absent in cancer cells of all carcinomas. As a consequence of the absence of peroxisomes in cancer cells, fatty acid metabolism is disturbed in addition to the altered glucose metabolism that is generally observed in cancer cells. Therefore, therapeutic approaches should focus on metabolism in addition to other strategies targeting signal transduction and angiogenesis.
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Affiliation(s)
- Wilma M Frederiks
- Department of Cell Biology and Histology, Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands.
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30
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Simic T, Savic-Radojevic A, Pljesa-Ercegovac M, Matic M, Mimic-Oka J. Glutathione S-transferases in kidney and urinary bladder tumors. Nat Rev Urol 2009; 6:281-9. [PMID: 19424176 DOI: 10.1038/nrurol.2009.49] [Citation(s) in RCA: 85] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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