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Macan TP, Magenis ML, Damiani AP, Monteiro IDO, Silveira GDB, Zaccaron RP, Silveira PCL, Teixeira JPF, Gajski G, Andrade VMD. Brazil nut consumption reduces DNA damage in overweight type 2 diabetes mellitus patients. Mutat Res Genet Toxicol Environ Mutagen 2024; 895:503739. [PMID: 38575248 DOI: 10.1016/j.mrgentox.2024.503739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 02/15/2024] [Accepted: 02/22/2024] [Indexed: 04/06/2024]
Abstract
Type 2 diabetes mellitus (T2D) is a metabolic disease, which occurs largely due to unhealthy lifestyle. As oxidative stress is believed to promote T2D, by inducing damage to lipids, proteins, and DNA, appropriate dietary interventions seem critical to prevent, manage, and even reverse this condition. Brazil nuts (Bertholletia excelsa, H.B.K.) are nature's richest source of selenium, a mineral that has shown several health benefits. Therefore, this study aims to assess the effects of selenium consumption, through Brazil nuts, on biochemical and oxidative stress parameters, and genomic instability in T2D patients. We recruited 133 patients with T2D, registered in the Integrated Clinics of the University of Southern Santa Catarina (Brazil). Participants consumed one Brazil nut a day for six months. Blood samples and exfoliated buccal cells were collected at the beginning and the end of the intervention. The glycemic profile, lipid profile, renal profile and hepatic profile, DNA damage and selenium content were evaluated. A total of 74 participants completed the intervention. Brazil nut consumption increased selenium and GSH levels, GPx, and CAT activity while DCF and nitrites levels decreased. Total thiols increased, and protein carbonyl and MDA levels decreased. Levels of baseline and oxidative DNA damage in T2D patients were significantly decreased, as well as the frequency of micronuclei and nuclear buds. The fasting glucose levels, HDL and LDL cholesterol, and GGT levels that increased significantly in patients with type 2 diabetes were significantly reduced with nut consumption. Our results show an increase in antioxidant activity, along with reductions of protein and lipid oxidation as well as DNA damage, suggesting that Brazil nut consumption could be an ally in reducing oxidative stress and modulating the genomic instability in T2D patients.
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Affiliation(s)
- Tamires Pavei Macan
- Laboratory of Translational Biomedicine, Postgraduate Program in Health Sciences, University of Southern Santa Catarina, Criciúma, SC, Brazil; Environmental Health Department, Portuguese National Institute of Health Dr. Ricardo Jorge, Porto, Portugal
| | - Marina Lummertz Magenis
- Laboratory of Translational Biomedicine, Postgraduate Program in Health Sciences, University of Southern Santa Catarina, Criciúma, SC, Brazil
| | - Adriani Paganini Damiani
- Laboratory of Translational Biomedicine, Postgraduate Program in Health Sciences, University of Southern Santa Catarina, Criciúma, SC, Brazil
| | - Isadora de Oliveira Monteiro
- Laboratory of Translational Biomedicine, Postgraduate Program in Health Sciences, University of Southern Santa Catarina, Criciúma, SC, Brazil
| | - Gustavo De Bem Silveira
- Laboratory of Experimental Physiopathology, Postgraduate Program in Health Sciences, University of Southern Santa Catarina, Criciúma, SC, Brazil
| | - Rubya Pereira Zaccaron
- Laboratory of Experimental Physiopathology, Postgraduate Program in Health Sciences, University of Southern Santa Catarina, Criciúma, SC, Brazil
| | - Paulo Cesar Lock Silveira
- Laboratory of Experimental Physiopathology, Postgraduate Program in Health Sciences, University of Southern Santa Catarina, Criciúma, SC, Brazil
| | | | - Goran Gajski
- Mutagenesis Unit, Institute for Medical Research and Occupational Health, Zagreb, Croatia
| | - Vanessa Moraes de Andrade
- Laboratory of Translational Biomedicine, Postgraduate Program in Health Sciences, University of Southern Santa Catarina, Criciúma, SC, Brazil.
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Jeong S, Chung Y, Moon J, Kim Y, Kim S, Baek G, Park JK. Protective effects of Dioscorea polystachya ethanol extracts against lead acetate-induced oxidative DNA damage in MRC-5 cells. Mol Cell Toxicol 2022; 18:581-588. [DOI: 10.1007/s13273-022-00230-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Nogueira CW, Barbosa NV, Rocha JBT. Toxicology and pharmacology of synthetic organoselenium compounds: an update. Arch Toxicol 2021; 95:1179-226. [PMID: 33792762 DOI: 10.1007/s00204-021-03003-5] [Citation(s) in RCA: 90] [Impact Index Per Article: 30.0] [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: 01/05/2021] [Accepted: 02/10/2021] [Indexed: 12/17/2022]
Abstract
Here, we addressed the pharmacology and toxicology of synthetic organoselenium compounds and some naturally occurring organoselenium amino acids. The use of selenium as a tool in organic synthesis and as a pharmacological agent goes back to the middle of the nineteenth and the beginning of the twentieth centuries. The rediscovery of ebselen and its investigation in clinical trials have motivated the search for new organoselenium molecules with pharmacological properties. Although ebselen and diselenides have some overlapping pharmacological properties, their molecular targets are not identical. However, they have similar anti-inflammatory and antioxidant activities, possibly, via activation of transcription factors, regulating the expression of antioxidant genes. In short, our knowledge about the pharmacological properties of simple organoselenium compounds is still elusive. However, contrary to our early expectations that they could imitate selenoproteins, organoselenium compounds seem to have non-specific modulatory activation of antioxidant pathways and specific inhibitory effects in some thiol-containing proteins. The thiol-oxidizing properties of organoselenium compounds are considered the molecular basis of their chronic toxicity; however, the acute use of organoselenium compounds as inhibitors of specific thiol-containing enzymes can be of therapeutic significance. In summary, the outcomes of the clinical trials of ebselen as a mimetic of lithium or as an inhibitor of SARS-CoV-2 proteases will be important to the field of organoselenium synthesis. The development of computational techniques that could predict rational modifications in the structure of organoselenium compounds to increase their specificity is required to construct a library of thiol-modifying agents with selectivity toward specific target proteins.
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Abstract
Endoplasmic reticulum resident protein 57 (ERp57) has a molecular weight of 57 kDa, belongs to the protein disulfide-isomerase (PDI) family, and is primarily located in the endoplasmic reticulum (ER). ERp57 functions in the quality control of nascent synthesized glycoproteins, participates in major histocompatibility complex (MHC) class I molecule assembly, regulates immune responses, maintains immunogenic cell death (ICD), regulates the unfolded protein response (UPR), functions as a 1,25-dihydroxy vitamin D3 (1,25(OH)2D3) receptor, regulates the NF-κB and STAT3 pathways, and participates in DNA repair processes and cytoskeletal remodeling. Recent studies have reported ERp57 overexpression in various human cancers, and altered expression and aberrant functionality of ERp57 are associated with cancer growth and progression and changes in the chemosensitivity of cancers. ERp57 may become a potential biomarker and therapeutic target to combat cancer development and chemoresistance. Here, we summarize the available knowledge of the role of ERp57 in cancer and the underlying mechanisms.
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Affiliation(s)
- Danyang Song
- Department of Gastroenterology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Hao Liu
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Air Force Military Medical University, Xi'an 710032, China
| | - Jian Wu
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Air Force Military Medical University, Xi'an 710032, China
| | - Xiaoliang Gao
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Air Force Military Medical University, Xi'an 710032, China
| | - Jianyu Hao
- Department of Gastroenterology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Daiming Fan
- Department of Gastroenterology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Air Force Military Medical University, Xi'an 710032, China
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Vodicka P, Andera L, Opattova A, Vodickova L. The Interactions of DNA Repair, Telomere Homeostasis, and p53 Mutational Status in Solid Cancers: Risk, Prognosis, and Prediction. Cancers (Basel) 2021; 13:479. [PMID: 33513745 DOI: 10.3390/cancers13030479] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [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: 12/06/2020] [Revised: 01/18/2021] [Accepted: 01/23/2021] [Indexed: 12/12/2022] Open
Abstract
The disruption of genomic integrity due to the accumulation of various kinds of DNA damage, deficient DNA repair capacity, and telomere shortening constitute the hallmarks of malignant diseases. DNA damage response (DDR) is a signaling network to process DNA damage with importance for both cancer development and chemotherapy outcome. DDR represents the complex events that detect DNA lesions and activate signaling networks (cell cycle checkpoint induction, DNA repair, and induction of cell death). TP53, the guardian of the genome, governs the cell response, resulting in cell cycle arrest, DNA damage repair, apoptosis, and senescence. The mutational status of TP53 has an impact on DDR, and somatic mutations in this gene represent one of the critical events in human carcinogenesis. Telomere dysfunction in cells that lack p53-mediated surveillance of genomic integrity along with the involvement of DNA repair in telomeric DNA regions leads to genomic instability. While the role of individual players (DDR, telomere homeostasis, and TP53) in human cancers has attracted attention for some time, there is insufficient understanding of the interactions between these pathways. Since solid cancer is a complex and multifactorial disease with considerable inter- and intra-tumor heterogeneity, we mainly dedicated this review to the interactions of DNA repair, telomere homeostasis, and TP53 mutational status, in relation to (a) cancer risk, (b) cancer progression, and (c) cancer therapy.
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Yang X, Chen X, Xia C, Li S, Zhu L, Xu C. Comparative analysis of the expression profiles of genes related to the Gadd45α signaling pathway in four kinds of liver diseases. Histol Histopathol 2020; 35:949-960. [PMID: 32298459 DOI: 10.14670/hh-18-218] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Gadd45α (growth arrest and DNA damage inducible alpha) is a member of a group of genes whose transcript levels are increased following stressful conditions that lead to growth arrest and treatment with agents that lead to DNA damage. Gadd45α is upregulated in liver cirrhosis (LC), hepatic cancer (HC), acute liver failure (AHF) and non-alcoholic fatty liver disease(NAFLD). Here, we investigated the essential differences in the Gadd45α signaling pathway in these diseases at the transcriptional level. The results showed that 44, 46, 71 and 27 genes significant changes in these diseases, and the H-cluster showed that the expression of the Gadd45α signaling-related genes was significantly different in the four liver diseases. DAVID functional analysis showed that the Gadd45α signaling pathway-related genes were mainly involved in cell adhesion and migration, cell proliferation, apoptosis, stress and inflammatory responses, etc. Ingenuity pathway analysis (IPA) software was used to predict the functions of the Gadd45α signaling-related genes, and the results indicated that there were significant changes in cell differentiation, DNA damage repair, autophagy, apoptosis and necrosis. Gadd45α signaling pathway is involved in four kinds of liver disease and regulates a variety of activities via P38 MAPK, NF-κB, mTOR/STAT3, P21, PCNA, PI3K/Akt and other signaling pathways. Modulation of Gadd45α may be exploited to prevent the progression of liver disease, and to identify specific treatments for different stages of liver disease. In summary, the Gadd45α signaling pathway is involved in four kinds of liver disease and regulates a variety of physiological activities through various signaling pathways.
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Affiliation(s)
- Xianguang Yang
- College of Life Science, Henan Normal University, Xinxiang, Henan Province, China. .,State Key Laboratory Cultivation Base for Cell Differentiation Regulation and Henan Bioengineering Key Laboratory, Henan Normal University, Xinxiang, Henan Province, China
| | - Xuelin Chen
- State Key Laboratory Cultivation Base for Cell Differentiation Regulation and Henan Bioengineering Key Laboratory, Henan Normal University, Xinxiang, Henan Province, China.,College of Life Science, Henan Normal University, Xinxiang, Henan Province, China
| | - Cong Xia
- State Key Laboratory Cultivation Base for Cell Differentiation Regulation and Henan Bioengineering Key Laboratory, Henan Normal University, Xinxiang, Henan Province, China.,College of Life Science, Henan Normal University, Xinxiang, Henan Province, China
| | - Shuaihong Li
- State Key Laboratory Cultivation Base for Cell Differentiation Regulation and Henan Bioengineering Key Laboratory, Henan Normal University, Xinxiang, Henan Province, China.,College of Life Science, Henan Normal University, Xinxiang, Henan Province, China
| | - Lin Zhu
- State Key Laboratory Cultivation Base for Cell Differentiation Regulation and Henan Bioengineering Key Laboratory, Henan Normal University, Xinxiang, Henan Province, China.,College of Life Science, Henan Normal University, Xinxiang, Henan Province, China
| | - Cunshuan Xu
- State Key Laboratory Cultivation Base for Cell Differentiation Regulation and Henan Bioengineering Key Laboratory, Henan Normal University, Xinxiang, Henan Province, China.,College of Life Science, Henan Normal University, Xinxiang, Henan Province, China
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Dalto DB, Tsoi S, Dyck MK, Matte JJ. Gene ontology analysis of expanded porcine blastocysts from gilts fed organic or inorganic selenium combined with pyridoxine. BMC Genomics 2018; 19:836. [PMID: 30463510 DOI: 10.1186/s12864-018-5237-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [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: 10/18/2017] [Accepted: 11/09/2018] [Indexed: 11/12/2022] Open
Abstract
Background Gene ontology analysis using the microarray database generated in a previous study by this laboratory was used to further evaluate how maternal dietary supplementation with pyridoxine combined with different sources of selenium (Se) affected global gene expression of expanded porcine blastocysts. Data were generated from 18 gilts randomly assigned to one of three experimental diets (n = 6 per treatment): i) basal diet without supplemental Se or pyridoxine (CONT); ii) CONT + 0.3 mg/kg of Na-selenite and 10 mg/kg of HCl-pyridoxine (MSeB610); and iii) CONT + 0.3 mg/kg of Se-enriched yeast and 10 mg/kg of HCl-pyridoxine (OSeB610). All gilts were inseminated at their fifth post-pubertal estrus and euthanized 5 days later for embryo harvesting. Differential gene expression between MSeB610 vs CONT, OSeB610 vs CONT and OSeB610 vs MSeB610 was performed using a porcine embryo-specific microarray. Results There were 559, 2458, and 1547 differentially expressed genes for MSeB610 vs CONT, OSeB610 vs CONT and OSeB610 vs MSeB610, respectively. MSeB610 vs CONT stimulated 13 biological processes with a strict effect on RNA binding and translation initiation. OSeB610 vs CONT and OSeB610 vs MSeB610 impacted 188 and 66 biological processes, respectively, with very similar effects on genome stability, ceramide biosynthesis, protein trafficking and epigenetic events. The stimulation of genes related with these processes was confirmed by quantitative real-time RT-PCR. Conclusions Gene expression of embryos from OSeB610 supplemented gilts was more impacted than those from MSeB610 supplemented gilts. Whereas maternal OSeB610 supplementation influenced crucial aspects of embryo development, maternal MSeB610 supplementation was restricted to binding activity. Electronic supplementary material The online version of this article (10.1186/s12864-018-5237-1) contains supplementary material, which is available to authorized users.
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Menon S, KS SD, R S, S R, S VK. Selenium nanoparticles: A potent chemotherapeutic agent and an elucidation of its mechanism. Colloids Surf B Biointerfaces 2018; 170:280-292. [DOI: 10.1016/j.colsurfb.2018.06.006] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 05/29/2018] [Accepted: 06/04/2018] [Indexed: 02/07/2023]
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Lynch S, Horgan K, Walls D, White B. Selenised yeast sources differ in their capacity to protect porcine jejunal epithelial cells from cadmium-induced toxicity and oxidised DNA damage. Biometals 2018; 31:845-58. [PMID: 30008026 DOI: 10.1007/s10534-018-0129-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Accepted: 07/08/2018] [Indexed: 12/20/2022]
Abstract
In recent years there has been increasing interest in the use of selenised yeast (Se-Y) as an antioxidant feed supplement. Here, three selenised yeast products are differentiated in terms of bioefficiency and the ameliorative effect on Cadmium (Cd) toxicity in porcine epithelial cells. A porcine digestion in vitro model was chosen to more accurately simulate the bioavailability of different Se-Y preparations, allowing a comprehensive understanding of the bio efficiency of each Se-Y compound in the porcine model. To elucidate a possible mechanism of action of selenium a number of bioassays were applied. Levels of Se dependent antioxidant enzymes (glutathione peroxidase and thioredoxin reductase) were evaluated to analyze the ROS neutralizing capacity of each Se-Y compound. The effects of Se-Y sources on Cd-induced DNA damage and apoptosis-associated DNA fragmentation was assessed using comet and terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assays, respectively. Lesion-specific DNA damage analysis and in vitro DNA repair assay determined the DNA repair capacity of each Se-Y source. The results presented in this study confirm that the ability of different commercially available Se-Y preparations to enhance a range of cellular mechanisms that protect porcine gut epithelial cells from Cd-induced damage is concentration-dependent and illustrates the difference in bioefficiency of different Se-Y compounds.
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Wang T, Wang H, Yang S, Guo H, Zhang B, Guo H, Wang L, Zhu G, Zhang Y, Zhou H, Zhang X, Li H, Su H. Association of APEX1 and OGG1 gene polymorphisms with breast cancer risk among Han women in the Gansu Province of China. BMC Med Genet 2018; 19:67. [PMID: 29720094 PMCID: PMC5930440 DOI: 10.1186/s12881-018-0578-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Accepted: 04/18/2018] [Indexed: 11/17/2022]
Abstract
Background Genetic variations in key DNA repair genes may influence DNA repair capacity, DNA damage and breast carcinogenesis. The current study aimed to estimate the association of APEX1 and OGG1 polymorphisms with the risk of breast cancer development. Methods A total of 518 patients with histopathologically confirmed breast cancer and 921 region- and age-matched cancer-free controls were genotyped for the APEX1 polymorphisms rs3136817 and rs1130409 and the OGG1 polymorphisms rs1052133 and rs2072668 using a QuantStudio™ 12 K Flex Real-Time PCR System. Results The rs3136817 heterozygous TC genotype along with the rs3136817 dominant model (TC + CC) was strongly associated with breast cancer susceptibility (odds ratio [OR] = 0.670, 95% confidence interval [95% CI]: 0.513 - 0.873, P = 0.003; OR = 0.682, 95% CI: 0.526 - 0.883, P = 0.004, respectively). No significant associations were observed among rs1130409, rs1052133, rs2072668 and breast cancer risk. Furthermore, an allele combination analysis revealed that APEX1 haplotypes containing C-T (alleles rs3136817 and rs1130409) conferred a significantly lower risk (corrected P < 0.001). Conclusion This research is the latest report showing that an APEX1 rs3136817 heterozygous genotype may have a positive influence on DNA repair capacity in patients with breast cancer and thus may have a potential protective effect for Chinese Han women. Electronic supplementary material The online version of this article (10.1186/s12881-018-0578-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Tao Wang
- Research Center of Translational Medicine, Gansu Provincial Academic Institute for Medical Research, NO. 2 Xiaoxihu East Street, Lanzhou, Gansu, 730050, People's Republic of China
| | - Haitao Wang
- Research Center of Translational Medicine, Gansu Provincial Academic Institute for Medical Research, NO. 2 Xiaoxihu East Street, Lanzhou, Gansu, 730050, People's Republic of China
| | - Suisheng Yang
- Department of Breast Surgery, Gansu Provincial Cancer Hospital, Lanzhou, Gansu, 730050, People's Republic of China
| | - Hongyun Guo
- Research Center of Translational Medicine, Gansu Provincial Academic Institute for Medical Research, NO. 2 Xiaoxihu East Street, Lanzhou, Gansu, 730050, People's Republic of China
| | - Binming Zhang
- Department of Breast Surgery, Gansu Provincial Cancer Hospital, Lanzhou, Gansu, 730050, People's Republic of China
| | - Huan Guo
- Research Center of Translational Medicine, Gansu Provincial Academic Institute for Medical Research, NO. 2 Xiaoxihu East Street, Lanzhou, Gansu, 730050, People's Republic of China
| | - Lan Wang
- Research Center of Translational Medicine, Gansu Provincial Academic Institute for Medical Research, NO. 2 Xiaoxihu East Street, Lanzhou, Gansu, 730050, People's Republic of China
| | - Gongjian Zhu
- Research Center of Translational Medicine, Gansu Provincial Academic Institute for Medical Research, NO. 2 Xiaoxihu East Street, Lanzhou, Gansu, 730050, People's Republic of China
| | - Yongdong Zhang
- Research Center of Translational Medicine, Gansu Provincial Academic Institute for Medical Research, NO. 2 Xiaoxihu East Street, Lanzhou, Gansu, 730050, People's Republic of China
| | - Haihong Zhou
- Research Center of Translational Medicine, Gansu Provincial Academic Institute for Medical Research, NO. 2 Xiaoxihu East Street, Lanzhou, Gansu, 730050, People's Republic of China
| | - Xiuli Zhang
- Research Center of Translational Medicine, Gansu Provincial Academic Institute for Medical Research, NO. 2 Xiaoxihu East Street, Lanzhou, Gansu, 730050, People's Republic of China
| | - Haining Li
- Research Center of Translational Medicine, Gansu Provincial Academic Institute for Medical Research, NO. 2 Xiaoxihu East Street, Lanzhou, Gansu, 730050, People's Republic of China
| | - Haixiang Su
- Research Center of Translational Medicine, Gansu Provincial Academic Institute for Medical Research, NO. 2 Xiaoxihu East Street, Lanzhou, Gansu, 730050, People's Republic of China.
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Liu J, Jiang G, Mao P, Zhang J, Zhang L, Liu L, Wang J, Owusu L, Ren B, Tang Y, Li W. Down-regulation of GADD45A enhances chemosensitivity in melanoma. Sci Rep 2018; 8:4111. [PMID: 29515153 PMCID: PMC5841426 DOI: 10.1038/s41598-018-22484-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 02/15/2018] [Indexed: 11/08/2022] Open
Abstract
Melanoma is a malignant skin cancer with considerable drug resistance. Increased expression of DNA repair genes have been reported in melanoma, and this contributes to chemotherapy resistance. GADD45A is involved in DNA repair, cell cycle arrest and apoptosis in response to physiologic or environmental stresses. In this study, we investigated the role of GADD45A in chemotherapy response. Firstly, the mRNA expression of profiled DNA repair genes in cisplatin-treated melanoma cells was detected by RT2 profilerTM PCR array. We found the expression of GADD45A upregulated in a dose- and time- dependent manner. In addition, suppression of GADD45A sensitized melanoma cells to cisplatin and enhanced cisplatin-induced DNA damage. Flow cytometry revealed that downregulating GADD45A released cells from cisplatin-induced G2/M arrest and increased apoptosis. By using a MEK inhibitor, GADD45A was shown to be regulated by MAPK-ERK pathway following cisplatin treatment. Thus, the induction of GADD45A might play important roles in chemotherapy response in human melanoma cancer and could serve as a novel molecular target for melanoma therapy.
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Affiliation(s)
- Jia Liu
- Department of Biotechnology, Dalian Medical University, Dalian, 116044, Liaoning, China
| | - Guoqiang Jiang
- Department of Biotechnology, Dalian Medical University, Dalian, 116044, Liaoning, China
| | - Ping Mao
- Department of General Surgery, The people's Hospital of Liaoning Province, Shenyang, 110016, Liaoning, China
| | - Jing Zhang
- Department of Biotechnology, Dalian Medical University, Dalian, 116044, Liaoning, China
| | - Lin Zhang
- Academy of Integrative Medicine, Dalian Medical University, Dalian, 116044, China
| | - Likun Liu
- Department of Biotechnology, Dalian Medical University, Dalian, 116044, Liaoning, China
| | - Jia Wang
- Department of Biotechnology, Dalian Medical University, Dalian, 116044, Liaoning, China
| | - Lawrence Owusu
- Department of Biochemistry and Biotechnology, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana
| | - Baoyin Ren
- Department of Biotechnology, Dalian Medical University, Dalian, 116044, Liaoning, China
| | - Yawei Tang
- Department of Immunology, Dalian Medical University, Dalian, 116044, China
| | - Weiling Li
- Department of Biotechnology, Dalian Medical University, Dalian, 116044, Liaoning, China.
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Wang HH, Chang TY, Lin WC, Wei KC, Shin JW. GADD45A plays a protective role against temozolomide treatment in glioblastoma cells. Sci Rep 2017; 7:8814. [PMID: 28821714 PMCID: PMC5562912 DOI: 10.1038/s41598-017-06851-3] [Citation(s) in RCA: 14] [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: 03/16/2017] [Accepted: 06/19/2017] [Indexed: 02/08/2023] Open
Abstract
Glioblastoma multiforme (GBM) is one of the most aggressive cancers. Despite recent advances in multimodal therapies, high-grade glioma remains fatal. Temozolomide (TMZ) is an alkylating agent used worldwide for the clinical treatment of GBM; however, the innate and acquired resistance of GBM limits its application. Here, we found that TMZ inhibited the proliferation and induced the G2/M arrest of GBM cells. Therefore, we performed microarrays to identify the cell cycle- and apoptosis-related genes affected by TMZ. Notably, GADD45A was found to be up-regulated by TMZ in both cell cycle and apoptosis arrays. Furthermore, GADD45A knockdown (GADD45Akd) enhanced the cell growth arrest and cell death induced by TMZ, even in natural (T98) and adapted (TR-U373) TMZ-resistant cells. Interestingly, GADD45Akd decreased the expression of O6-methylguanine-DNA methyltransferase (MGMT) in TMZ-resistant cells (T98 and TR-U373). In MGMT-deficient/TMZ-sensitive cells (U87 and U373), GADD45Akd decreased TMZ-induced TP53 expression. Thus, in this study, we investigated the genes influenced by TMZ that were important in GBM therapy, and revealed that GADD45A plays a protective role against TMZ treatment which may through TP53-dependent and MGMT-dependent pathway in TMZ-sensitive and TMZ-resistant GBM, respectively. This protective role of GADD45A against TMZ treatment may provide a new therapeutic strategy for GBM treatment.
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Affiliation(s)
- Hsiao-Han Wang
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Tsuey-Yu Chang
- Department of Parasitology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Wei-Chen Lin
- Department of Parasitology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Kuo-Chen Wei
- Departments of Neurosurgery, Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Taoyuan, Taiwan.
| | - Jyh-Wei Shin
- Department of Parasitology, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
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Kim HS, Lee SM, Kim YJ, Jang W, Seo YR. Integrative toxicogenomic analysis for elucidating molecular interference on DNA integrity and repair system with underlying signaling networks in response to low-level lead acetate in rat liver model. Mol Cell Toxicol 2017. [DOI: 10.1007/s13273-017-0019-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Alwhibi MS, Khalil MIM, Ibrahim MM, El-Gaaly GA, Sultan AS. Potential Antitumor Activity and Apoptosis Induction of Glossostemon bruguieri Root Extract against Hepatocellular Carcinoma Cells. Evid Based Complement Alternat Med 2017; 2017:7218562. [PMID: 28421122 DOI: 10.1155/2017/7218562] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2016] [Revised: 09/12/2016] [Accepted: 01/12/2017] [Indexed: 01/10/2023]
Abstract
Glossostemon bruguieri (moghat) is used as a nutritive and demulcent drink. This study was performed to investigate the antiproliferative effects of moghat root extract (MRE) and its apoptotic mechanism in hepatocellular carcinoma (HCC) cells, HepG2 and Hep3B. MTT assay, morphological changes, apoptosis enzyme linked immunosorbent assay, caspase and apoptotic activation, flow cytometry, and immunoblot analysis were employed. The IC50 of MRE for HepG2 (910 ± 6 μg/ml) and for Hep3B (1510 ± 5 μg/ml) induced significant growth-inhibitory effects against HCC cells, with no cytotoxic effect on normal hepatocytes. MRE treatment induced apoptotic effects to HepG2 cells in a caspase-dependent manner and via upregulating p53/p21 and PCNA. The upregulation of p21 was controlled by p53 expression in HepG2 but not in Hep3B despite upregulation of Bax protein in both cell lines. Interestingly, p21 may be a remarkable switch to G1 arrest in HepG2 cells, but not in Hep3B cells. In addition, Fas- and mitochondria-mediated pathways were found to be involved in MRE-induced apoptosis in Hep3B cells. The GC-MS analysis of MRE revealed two major constituents of pharmaceutical importance: the flavonoid apigenin (17.04%) and the terpenoid squalene (11.32%). The data presented in this paper introduces G. bruguieri as a promising nontoxic herb with therapeutic potential for HCC. To the authors' knowledge, the present study provides the first report on the anticancer activity of MRE on HCC cells.
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Leoni SG, Sastre-Perona A, De la Vieja A, Santisteban P. Selenium Increases Thyroid-Stimulating Hormone-Induced Sodium/Iodide Symporter Expression Through Thioredoxin/Apurinic/Apyrimidinic Endonuclease 1-Dependent Regulation of Paired Box 8 Binding Activity. Antioxid Redox Signal 2016; 24:855-66. [PMID: 26650895 DOI: 10.1089/ars.2014.6228] [Citation(s) in RCA: 17] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
AIMS The sodium-iodide symporter (NIS) mediates the uptake of I(-) by the thyroid follicular cell and is essential for thyroid hormone biosynthesis. Nis expression is stimulated by thyroid-stimulating hormone (TSH) and also requires paired box 8 (Pax8) to bind to its promoter. Pax8 binding activity depends on its redox state by a mechanism involving thioredoxin/thioredoxin reductase-1 (Txn/TxnRd1) reduction of apurinic/apyrimidinic endonuclease 1 (Ape1). In this study, we investigate the role of Se in Nis expression. RESULTS Selenium increases TSH-induced Nis expression and activity in rat thyroid cells. The stimulatory effect of Se occurs at the transcriptional level and is only observed for Nis promoters containing a Pax8 binding site in the Nis upstream enhancer, suggesting that Pax8 is involved in this effect. In fact, Se increases Pax8 expression and its DNA-binding capacity, and in Pax8-silenced rat thyroid cells, Nis is not Se responsive. By inhibiting Ape1 and TxnRd1 functions, we found that both enzymes are crucial for TSH and TSH plus Se stimulation of Pax8 activity and mediate the Nis response to Se treatment. INNOVATION We describe that Se increases Nis expression and activity. We demonstrate that this effect is dependent on the redox functions of Ape1 and Txn/TxnRd1 through control of the DNA binding activity of Pax8. CONCLUSION Nis expression is controlled by Txn/Ape1 through a TSH/Se-dependent mechanism. These findings open a new field of study regarding the regulation of Nis activity in thyroid cells. Antioxid. Redox Signal. 24, 855-866.
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Affiliation(s)
- Suzana G Leoni
- 1 Instituto de Investigaciones Biomédicas Alberto Sols, Consejo Superior de Investigaciones Científicas y Universidad Autónoma de Madrid , Madrid, Spain .,2 Instituto de Salud Carlos III, Unidad de Tumores Endocrinos, Unidad Funcional de Investigación en Enfermedades Crónicas (UFIEC) , Majadahonda (Madrid), Spain
| | - Ana Sastre-Perona
- 1 Instituto de Investigaciones Biomédicas Alberto Sols, Consejo Superior de Investigaciones Científicas y Universidad Autónoma de Madrid , Madrid, Spain
| | - Antonio De la Vieja
- 2 Instituto de Salud Carlos III, Unidad de Tumores Endocrinos, Unidad Funcional de Investigación en Enfermedades Crónicas (UFIEC) , Majadahonda (Madrid), Spain
| | - Pilar Santisteban
- 1 Instituto de Investigaciones Biomédicas Alberto Sols, Consejo Superior de Investigaciones Científicas y Universidad Autónoma de Madrid , Madrid, Spain
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Abstract
The cells in the human body are continuously challenged by a variety of genotoxic attacks. Erroneous repair of the DNA can lead to mutations and chromosomal aberrations that can alter the functions of tumor suppressor genes or oncogenes, thus causing cancer development. As a central tumor suppressor, p53 guards the genome by orchestrating a variety of DNA-damage-response (DDR) mechanisms. Already early in metazoan evolution, p53 started controlling the apoptotic demise of genomically compromised cells. p53 plays a prominent role as a facilitator of DNA repair by halting the cell cycle to allow time for the repair machineries to restore genome stability. In addition, p53 took on diverse roles to also directly impact the activity of various DNA-repair systems. It thus appears as if p53 is multitasking in providing protection from cancer development by maintaining genome stability.
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Affiliation(s)
- Ashley B Williams
- Medical Faculty, Institute for Genome Stability in Ageing and Disease, University of Cologne, 50931 Cologne, Germany Cologne Excellence Cluster for Cellular Stress Responses in Aging-Associated Diseases (CECAD), Center for Molecular Medicine Cologne (CMMC) and Systems Biology of Ageing Cologne, University of Cologne, 50931 Cologne, Germany
| | - Björn Schumacher
- Medical Faculty, Institute for Genome Stability in Ageing and Disease, University of Cologne, 50931 Cologne, Germany Cologne Excellence Cluster for Cellular Stress Responses in Aging-Associated Diseases (CECAD), Center for Molecular Medicine Cologne (CMMC) and Systems Biology of Ageing Cologne, University of Cologne, 50931 Cologne, Germany
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Abstract
Alterations of epigenetic marks are linked to normal development and cellular differentiation as well as to the progression of common chronic diseases. The plasticity of these marks provides potential for disease therapies and prevention strategies. Macro- and micro-nutrients have been shown to modulate disease risk in part via effects on the epigenome. The essential micronutrient selenium affects human health outcomes, e.g., cancers, cardiovascular and autoimmune diseases, via selenoproteins and through a range of biologically active dietary selenocompounds and metabolism products thereof. This review provides an assessment of the current literature regarding epigenetic effects of dietary and synthetic selenocompounds, which include the modulation of marks and editors of epigenetic information and interference with one-carbon metabolism, which provides the methyl donor for DNA methylation. The relevance of a selenium-epigenome interaction for human health is discussed, and we also indicate where future studies will be helpful to gain a deeper understanding of epigenetic effects elicited by selenium.
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Affiliation(s)
- Bodo Speckmann
- a German Institute of Human Nutrition Potsdam-Rehbruecke ; Department of Molecular Toxicology ; Nuthetal , Germany
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Khalil MIM, Ibrahim MM, El-Gaaly GA, Sultan AS. Trigonella foenum (Fenugreek) Induced Apoptosis in Hepatocellular Carcinoma Cell Line, HepG2, Mediated by Upregulation of p53 and Proliferating Cell Nuclear Antigen. Biomed Res Int 2015; 2015:914645. [PMID: 26557712 PMCID: PMC4628703 DOI: 10.1155/2015/914645] [Citation(s) in RCA: 31] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 04/11/2015] [Accepted: 04/16/2015] [Indexed: 12/03/2022]
Abstract
Hepatocellular carcinoma (HCC) is one of the most common cancers worldwide and most current therapies are of limited efficacy. Trigonella foenum (Fenugreek) is a traditional herbal plant with antitumor activity, although the mechanisms of its activity remain unclear. Herein, a crude methanol extract was prepared from Fenugreek seeds (FCE) and its anticancer mechanism was evaluated, using HepG2 cell line. Growth-inhibitory effect and apoptosis induction of HepG2 cells were evidenced by MTT assay, cell morphology alteration, apoptosis enzyme-linked immunosorbent assay, flow cytometric analysis, caspase-3 activity, and expression of p53, proapoptotic protein, Bax, and proliferating cell nuclear antigen (PCNA) after (100 ∼ 500 μg/mL) FCE treatment for 48 h. Furthermore, FCE was analyzed by Chromatography-Mass Spectrometry (GC/MS). Our results revealed that FCE treatment for 48 h showed a cytotoxic effect and apoptosis induction in a dose-dependent manner that was mediated by upregulation of p53, Bax, PCNA, and caspase-3 activation in HepG2 cells. GC-MS analysis of FCE showed the presence of fourteen bioactive compounds such as Terpenoids and Flavonoids, including two main constituents with anticancer activity, Squalene and Naringenin (27.71% and 24.05%), respectively. Our data introduced FCE as a promising nontoxic herbal with therapeutic potential to induce apoptosis in HepG2 cells through p53, Bax, and PCNA upregulation in caspase-3 dependent manner.
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Affiliation(s)
- Mahmoud I. M. Khalil
- Zoology Department, Faculty of Science, Alexandria University, Alexandria 21511, Egypt
| | - Mohamed M. Ibrahim
- Botany and Microbiology Department, Science College, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
- Botany and Microbiology Department, Faculty of Science, Alexandria University, Alexandria 21511, Egypt
| | - Gehan A. El-Gaaly
- Botany and Microbiology Department, Science College, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Ahmed S. Sultan
- Department of Biochemistry, Faculty of Science, Alexandria University, Alexandria 21511, Egypt
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Hosseinimehr SJ. The protective effects of trace elements against side effects induced by ionizing radiation. Radiat Oncol J 2015; 33:66-74. [PMID: 26157675 PMCID: PMC4493430 DOI: 10.3857/roj.2015.33.2.66] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [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: 05/08/2015] [Revised: 06/18/2015] [Accepted: 06/22/2015] [Indexed: 12/14/2022] Open
Abstract
Trace elements play crucial role in the maintenance of genome stability in the cells. Many endogenous defense enzymes are containing trace elements such as superoxide dismutase and metalloproteins. These enzymes are contributing in the detoxification of reactive oxidative species (ROS) induced by ionizing radiation in the cells. Zinc, copper, manganese, and selenium are main trace elements that have protective roles against radiation-induced DNA damages. Trace elements in the free salt forms have protective effect against cell toxicity induced by oxidative stress, metal-complex are more active in the attenuation of ROS particularly through superoxide dismutase mimetic activity. Manganese-complexes in protection of normal cell against radiation without any protective effect on cancer cells are more interesting compounds in this topic. The aim of this paper to review the role of trace elements in protection cells against genotoxicity and side effects induced by ionizing radiation.
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Affiliation(s)
- Seyed Jalal Hosseinimehr
- Department of Radiopharmacy, Faculty of Pharmacy, Pharmaceutical Sciences Research Center, Mazandaran University of Medical Sciences, Sari, Iran
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Purushothaman A, Nandhakumar E, Shanthi P, Sachidanandam TP. Antiproliferative and Apoptotic Effects of Shemamruthaa, a Herbal Preparation, in 7,12-Dimethylbenz(a)Anthracene-Induced Breast Cancer Rats. J Evid Based Complementary Altern Med 2015; 20:259-68. [PMID: 25888591 DOI: 10.1177/2156587215580434] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 03/07/2015] [Indexed: 11/15/2022] Open
Abstract
A herbal preparation, Shemamruthaa (SM), was formulated to investigate the molecular mechanism by which it exhibits anticancer effects in mammary carcinoma bearing rats. Female Sprague-Dawley rats were used for the study, and mammary carcinoma was induced by administration of 7,12-dimethylbenz(a)anthracene, intragastrically. After 3 months of induction period, the rats were treated with SM (400 mg/kg body weight) for 14 days. Our study shows that SM-treated mammary carcinoma rats showed regression in tumor volume with concomitant increase in p(53), Bax, caspase-3, and caspase-9 mRNA and protein levels compared with mammary carcinoma-induced rats. Proliferating cell nuclear antigen and anti-apoptotic Bcl-2 were markedly increased in mammary carcinoma-induced rats, whereas the SM treatment significantly decreased the expression of these proteins. The expression pattern of apoptotic signaling molecules analyzed in the present study signifies the therapeutic efficacy of SM against breast cancer.
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Affiliation(s)
| | - Elumalai Nandhakumar
- Dr. ALM Postgraduate Institute of Basic Medical Sciences, University of Madras, Chennai, India
| | - Palanivelu Shanthi
- Dr. ALM Postgraduate Institute of Basic Medical Sciences, University of Madras, Chennai, India
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Chang IY, Kim JN, Kim SO, Han M, Huh JS, Maeng YH, Yoon SP. Morphological effects of mitomycin C on urothelial responses to experimentally-induced urethral stricture in rats. Int J Urol 2015; 22:702-9. [PMID: 25871346 DOI: 10.1111/iju.12780] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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: 12/10/2014] [Revised: 02/12/2015] [Accepted: 03/08/2015] [Indexed: 11/29/2022]
Abstract
OBJECTIVES To analyze the urothelial responses to mitomycin C treatment after urethral injury in rats, as the urothelium might play a role in the pathogenesis of urethral stricture. METHODS Male Sprague-Dawley rats were divided into four groups (n = 5/group): negative control, positive control without further treatment, experimental control treated with sodium hyaluronate and sodium carboxymethylcellulose, and experimental treated with mitomycin C after internal urethrotomy. RESULTS Compared with negative controls, positive controls showed a significant increase in cell proliferation and DNA damage accompanied by a considerable decrease in DNA repair in the urothelium, which resulted in urethral stricture. Experimental controls showed a significant increase in cell proliferation, DNA damage and DNA repair compared with negative controls. The mitomycin C-treated group showed a significant decrease in cell proliferation and DNA damage, but a considerable increase in DNA repair compared with the positive and experimental control groups. DNA damage was immediately increased after urethral injury, but DNA repair and cell proliferation showed belated and upregulated expression after mitomycin C treatment. CONCLUSIONS Mitomycin C could induce healthy re-epithelialization without severe damage in the urothelium. This finding might support the possibility of using mitomycin C as an adjuvant therapy for urethral strictures, and it might also suggest a urothelial role in the process of urethral stricture after urethral injury.
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Affiliation(s)
- In Youb Chang
- Department of Anatomy, College of Medicine, Chosun University
| | - Jin Nam Kim
- Department of Internal Medicine, Seoulpaik Hospital, Inje University College of Medicine, Seoul
| | - Sun-Ouck Kim
- Department of Urology, Chonnam National University Medical School, Gwangju
| | - Misook Han
- Department of Nursing, School of Natural Science, Songwon University, Gwangju
| | - Jung-Sik Huh
- Department of Urology, School of Medicine, Jeju National University
| | - Young Hee Maeng
- Department of Pathology, School of Medicine, Jeju National University
| | - Sang Pil Yoon
- Department of Anatomy, School of Medicine, Jeju National University, Jeju, Korea
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Abstract
miR-34a functions as a tumor suppressor in many cancers. In a recent issue of Cancer Research, we describe a small molecule, Rubone, with strong anticancer activity. Rubone selectively restored miR-34a expression in hepatocellular carcinoma cells in which miR-34a was silenced. Restoration of miR-34a by Rubone represents a promising therapeutic approach against cancer.
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Affiliation(s)
- Zhangang Xiao
- School of Biomedical Sciences; Faculty of Medicine; The Chinese University of Hong Kong ; Shatin, Hong Kong
| | - Yangchao Chen
- School of Biomedical Sciences; Faculty of Medicine; The Chinese University of Hong Kong; Shatin, Hong Kong; State Key Laboratory of Digestive Disease; Institute of Digestive Disease; The Chinese University of Hong Kong; Shatin, Hong Kong; Shenzhen Research Institute; The Chinese University of Hong Kong; Shenzhen, China
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Estevez H, Garcia-Lidon JC, Luque-Garcia JL, Camara C. Effects of chitosan-stabilized selenium nanoparticles on cell proliferation, apoptosis and cell cycle pattern in HepG2 cells: Comparison with other selenospecies. Colloids Surf B Biointerfaces 2014; 122:184-193. [DOI: 10.1016/j.colsurfb.2014.06.062] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2014] [Accepted: 06/01/2014] [Indexed: 12/24/2022]
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Park JS, Kim HL, Kim YJ, Weon JI, Sung MK, Chung HW, Seo YR. Human AP endonuclease 1: a potential marker for the prediction of environmental carcinogenesis risk. Oxid Med Cell Longev 2014; 2014:730301. [PMID: 25243052 DOI: 10.1155/2014/730301] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Accepted: 06/30/2014] [Indexed: 12/15/2022]
Abstract
Human apurinic/apyrimidinic endonuclease 1 (APE1) functions mainly in DNA repair as an enzyme removing AP sites and in redox signaling as a coactivator of various transcription factors. Based on these multifunctions of APE1 within cells, numerous studies have reported that the alteration of APE1 could be a crucial factor in development of human diseases such as cancer and neurodegeneration. In fact, the study on the combination of an individual's genetic make-up with environmental factors (gene-environment interaction) is of great importance to understand the development of diseases, especially lethal diseases including cancer. Recent reports have suggested that the human carcinogenic risk following exposure to environmental toxicants is affected by APE1 alterations in terms of gene-environment interactions. In this review, we initially outline the critical APE1 functions in the various intracellular mechanisms including DNA repair and redox regulation and its roles in human diseases. Several findings demonstrate that the change in expression and activity as well as genetic variability of APE1 caused by environmental chemical (e.g., heavy metals and cigarette smoke) and physical carcinogens (ultraviolet and ionizing radiation) is likely associated with various cancers. These enable us to ultimately suggest APE1 as a vital marker for the prediction of environmental carcinogenesis risk.
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