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Watanabe LM, Pereira VAB, Noronha NY, de Souza Pinhel MA, Wolf LS, de Oliveira CC, Plaça JR, Noma IHY, da Silva Rodrigues G, de Souza VCO, Júnior FB, Nonino CB. The influence of serum selenium in differential epigenetic and transcriptional regulation of CPT1B gene in women with obesity. J Trace Elem Med Biol 2024; 83:127376. [PMID: 38183920 DOI: 10.1016/j.jtemb.2023.127376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 12/19/2023] [Accepted: 12/21/2023] [Indexed: 01/08/2024]
Abstract
INTRODUCTION The increasing prevalence of obesity has become a major health problem worldwide. The causes of obesity are multifactorial and could be influenced by dietary patterns and genetic factors. Obesity has been associated with a decrease in micronutrient intake and consequently decreased blood concentrations. Selenium is an essential micronutrient for human health, and its metabolism could be affected by obesity, especially severe obesity. This study aimed to identify differential methylation genes associated with serum selenium concentration in women with and without obesity. METHODOLOGY Thirty-four patients were enrolled in the study and divided into two groups: Obese (Ob) n = 20 and Non-Obese (NOb) n = 14, according to the Body Mass Index (BMI). Anthropometry, body composition, serum selenium, selenium intake, and biochemical parameters were evaluated. DNA extraction and bisulfite conversion were performed to hybridize the samples on the 450k Methylation Chip Infinium Beadchip (Illumina). Bioinformatics analysis was performed using the R program and the Champ package. The differentially methylated regions (DMRs) were identified using the Bumphunter method. In addition, logarithmic conversion was performed for the analysis of serum selenium and methylation. RESULTS In the Ob group, the body weight, BMI, fat mass, and free fat mass were higher than in the NOb group, as expected. Interestingly, the serum selenium was lower in the Ob than in the NOb group without differences in selenium intake. One DMR corresponding to the CPT1B gene, involved in lipid oxidation, was related to selenium levels. This region was hypermethylated in the Ob group, indicating that the intersection between selenium deficiency and hypermethylation could influence the expression of the CPT1B gene. The transcriptional analysis confirmed the lower expression of the CPT1B gene in the Ob group. CONCLUSION Studies connecting epigenetics to environmental factors could offer insights into the mechanisms involving the expression of genes related to obesity and its comorbidities. Here we demonstrated that the mineral selenium might play an essential role in lipid oxidation via epigenetic and transcriptional regulation of the CPT1B gene in obesity.
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Affiliation(s)
- Lígia Moriguchi Watanabe
- Department of Health Sciences, Division of Nutrition and Metabolism, Ribeirão Preto Medical School, University of São Paulo, FMRP/USP, Brazil.
| | - Vanessa Aparecida Batista Pereira
- Department of Health Sciences, Division of Nutrition and Metabolism, Ribeirão Preto Medical School, University of São Paulo, FMRP/USP, Brazil
| | - Natalia Yumi Noronha
- Department of Internal Medicine, Ribeirão Preto Medical School, University of São Paulo, FMRP/USP, Brazil
| | - Marcela Augusta de Souza Pinhel
- Department of Internal Medicine, Ribeirão Preto Medical School, University of São Paulo, FMRP/USP, Brazil; Departament of Molecular Biology - São Jose do Rio Preto Medical School, Sao Jose do Rio Preto, São Paulo, Brazil
| | - Leticia Santana Wolf
- Department of Internal Medicine, Ribeirão Preto Medical School, University of São Paulo, FMRP/USP, Brazil
| | | | - Jessica Rodrigues Plaça
- National Institute of Science and Technology in Stem Cell and Cell Therapy (INCT/CNPq) and Center for Cell-Based Therapy, CEPID/FAPESP, Ribeirão Preto, São Paulo, Brazil
| | - Isabella Harumi Yonehara Noma
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, São Paulo, Brazil
| | | | - Vanessa Cristina Oliveira de Souza
- Department of Clinical and Toxicological Analyses and Bromatology, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, FCFRP/USP, Brazil
| | - Fernando Barbosa Júnior
- Department of Clinical and Toxicological Analyses and Bromatology, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, FCFRP/USP, Brazil
| | - Carla Barbosa Nonino
- Department of Health Sciences, Division of Nutrition and Metabolism, Ribeirão Preto Medical School, University of São Paulo, FMRP/USP, Brazil; Department of Internal Medicine, Ribeirão Preto Medical School, University of São Paulo, FMRP/USP, Brazil
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Chen D, Cai B, Zhu Y, Ma Y, Yu X, Xiong J, Shen J, Tie W, Zhang Y, Guo F. Targeting histone demethylases JMJD3 and UTX: selenium as a potential therapeutic agent for cervical cancer. Clin Epigenetics 2024; 16:51. [PMID: 38576048 PMCID: PMC10993516 DOI: 10.1186/s13148-024-01665-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Accepted: 03/26/2024] [Indexed: 04/06/2024] Open
Abstract
BACKGROUND The intriguing connection between selenium and cancer resembles a captivating puzzle that keeps researchers engaged and curious. While selenium has shown promise in reducing cancer risks through supplementation, its interaction with epigenetics in cervical cancer remains a fascinating yet largely unexplored realm. Unraveling the intricacies of selenium's role and its interaction with epigenetic factors could unlock valuable insights in the battle against this complex disease. RESULT Selenium has shown remarkable inhibitory effects on cervical cancer cells in various ways. In in vitro studies, it effectively inhibits the proliferation, migration, and invasion of cervical cancer cells, while promoting apoptosis. Selenium also demonstrates significant inhibitory effects on human cervical cancer-derived organoids. Furthermore, in an in vivo study, the administration of selenium dioxide solution effectively suppresses the growth of cervical cancer tumors in mice. One of the mechanisms behind selenium's inhibitory effects is its ability to inhibit histone demethylases, specifically JMJD3 and UTX. This inhibition is observed both in vitro and in vivo. Notably, when JMJD3 and UTX are inhibited with GSK-J4, similar biological effects are observed in both in vitro and in vivo models, effectively inhibiting organoid models derived from cervical cancer patients. Inhibiting JMJD3 and UTX also induces G2/M phase arrest, promotes cellular apoptosis, and reverses epithelial-mesenchymal transition (EMT). ChIP-qPCR analysis confirms that JMJD3 and UTX inhibition increases the recruitment of a specific histone modification, H3K27me3, to the transcription start sites (TSS) of target genes in cervical cancer cells (HeLa and SiHa cells). Furthermore, the expressions of JMJD3 and UTX are found to be significantly higher in cervical cancer tissues compared to adjacent normal cervical tissues, suggesting their potential as therapeutic targets. CONCLUSIONS Our study highlights the significant inhibitory effects of selenium on the growth, migration, and invasion of cervical cancer cells, promoting apoptosis and displaying promising potential as a therapeutic agent. We identified the histone demethylases JMJD3 and UTX as specific targets of selenium, and their inhibition replicates the observed effects on cancer cell behavior. These findings suggest that JMJD3 and UTX could be valuable targets for selenium-based treatments of cervical cancer.
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Affiliation(s)
- Dezhi Chen
- Ningbo Institute of Innovation for Combined Medicine and Engineering (NIIME), Ningbo Medical Center Lihuili Hospital, Ningbo University, Ningbo, 315100, Zhejiang Province, China
- The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330006, Jiangxi Province, China
| | - Bo Cai
- The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330006, Jiangxi Province, China
- Jiangxi Maternal and Child Health Hospital, Nanchang, 330008, Jiangxi Province, China
| | - Yingying Zhu
- Ningbo Institute of Innovation for Combined Medicine and Engineering (NIIME), Ningbo Medical Center Lihuili Hospital, Ningbo University, Ningbo, 315100, Zhejiang Province, China
| | - Yimin Ma
- Ningbo Institute of Innovation for Combined Medicine and Engineering (NIIME), Ningbo Medical Center Lihuili Hospital, Ningbo University, Ningbo, 315100, Zhejiang Province, China
| | - Xiaoting Yu
- The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330006, Jiangxi Province, China
| | - Jieqi Xiong
- Jiangxi Maternal and Child Health Hospital, Nanchang, 330008, Jiangxi Province, China
| | - Jiaying Shen
- Ningbo Institute of Innovation for Combined Medicine and Engineering (NIIME), Ningbo Medical Center Lihuili Hospital, Ningbo University, Ningbo, 315100, Zhejiang Province, China
| | - Weiwei Tie
- Ningbo Institute of Innovation for Combined Medicine and Engineering (NIIME), Ningbo Medical Center Lihuili Hospital, Ningbo University, Ningbo, 315100, Zhejiang Province, China
| | - Yisheng Zhang
- Ningbo Institute of Innovation for Combined Medicine and Engineering (NIIME), Ningbo Medical Center Lihuili Hospital, Ningbo University, Ningbo, 315100, Zhejiang Province, China
| | - Fei Guo
- Ningbo Institute of Innovation for Combined Medicine and Engineering (NIIME), Ningbo Medical Center Lihuili Hospital, Ningbo University, Ningbo, 315100, Zhejiang Province, China.
- The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330006, Jiangxi Province, China.
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Jiang J, Chen B, Tang B, Wei Q. Selenium in Prostate Cancer: Prevention, Progression, and Treatment. Pharmaceuticals (Basel) 2023; 16:1250. [PMID: 37765058 PMCID: PMC10536940 DOI: 10.3390/ph16091250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 08/14/2023] [Accepted: 08/21/2023] [Indexed: 09/29/2023] Open
Abstract
Selenium, a trace mineral with various biological functions, has become a focal point in prostate cancer research. This review aims to present a comprehensive overview of selenium's involvement in prostate cancer, covering its impact on prevention, development, treatment, and underlying mechanisms. Observational studies have revealed a link between selenium levels and selenoproteins with prostate cancer progression. However, randomized controlled studies have shown that selenium supplementation does not prevent prostate cancer (HR: 0.95; 95% CI 0.80-1.13). This discrepancy might be attributed to selenoprotein single nucleotide polymorphisms. In the context of combinatorial therapy, selenium has demonstrated promising synergistic potential in the treatment of prostate cancer. Emerging evidence highlights the significant role of selenium and selenoproteins in prostate cancer, encompassing AR signaling, antioxidative properties, cell death, cell cycle regulation, angiogenesis, epigenetic regulation, immunoregulation, epithelial-mesenchymal transformation, and redox signal. In conclusion, selenium's diverse properties make it a promising trace mineral in prostate cancer prevention, development, and treatment and as a platform for exploring novel agents.
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Affiliation(s)
- Jinjiang Jiang
- Department of Urology, West China Hospital of Sichuan University, No. 37, Guoxue Lane, Chengdu 610041, China
- Institute of Urology, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Bo Chen
- Department of Urology, West China Hospital of Sichuan University, No. 37, Guoxue Lane, Chengdu 610041, China
- Institute of Urology, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Bo Tang
- Department of Urology, West China Hospital of Sichuan University, No. 37, Guoxue Lane, Chengdu 610041, China
- Institute of Urology, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Qiang Wei
- Department of Urology, West China Hospital of Sichuan University, No. 37, Guoxue Lane, Chengdu 610041, China
- Institute of Urology, West China Hospital of Sichuan University, Chengdu 610041, China
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Toubhans B, Alkafri N, Quintela M, James DW, Bissardon C, Gazze S, Knodel F, Proux O, Gourlan AT, Rathert P, Bohic S, Gonzalez D, Francis LW, Charlet L, Conlan RS. Selenium nanoparticles modulate histone methylation via lysine methyltransferase activity and S-adenosylhomocysteine depletion. Redox Biol 2023; 61:102641. [PMID: 36842241 PMCID: PMC9988660 DOI: 10.1016/j.redox.2023.102641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 02/17/2023] [Accepted: 02/21/2023] [Indexed: 02/25/2023] Open
Abstract
At physiological levels, the trace element selenium plays a key role in redox reactions through the incorporation of selenocysteine in antioxidant enzymes. Selenium has also been evaluated as a potential anti-cancer agent, where selenium nanoparticles have proven effective, and are well tolerated in vivo at doses that are toxic as soluble Se. The use of such nanoparticles, coated with either serum albumin or the naturally occurring alkaline polysaccharide chitosan, also serves to enhance biocompatibility and bioavailability. Here we demonstrate a novel role for selenium in regulating histone methylation in ovarian cancer cell models treated with inorganic selenium nanoparticles coated with serum albumin or chitosan. As well as inducing thioredoxin reductase expression, ROS activity and cancer cell cytotoxicity, coated nanoparticles caused significant increases in histone methylation. Specifically, selenium nanoparticles triggered an increase in the methylation of histone 3 at lysines K9 and K27, histone marks involved in both the activation and repression of gene expression, thus suggesting a fundamental role for selenium in these epigenetic processes. This direct function was confirmed using chemical inhibitors of the histone lysine methyltransferases EZH2 (H3K27) and G9a/EHMT2 (H3K9), both of which blocked the effect of selenium on histone methylation. This novel role for selenium supports a distinct function in histone methylation that occurs due to a decrease in S-adenosylhomocysteine, an endogenous inhibitor of lysine methyltransferases, the metabolic product of methyl-group transfer from S-adenosylmethionine in the one-carbon metabolism pathway. These observations provide important new insights into the action of selenium nanoparticles. It is now important to consider both the classic antioxidant and novel histone methylation effects of this key redox element in its development in cancer therapy and other applications.
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Affiliation(s)
- Benoit Toubhans
- Swansea University Medical School, Swansea University, Swansea, SA2 8PP, UK; Université Grenoble Alpes, ISTerre, 38000, Grenoble, France
| | - Nour Alkafri
- Swansea University Medical School, Swansea University, Swansea, SA2 8PP, UK
| | - Marcos Quintela
- Swansea University Medical School, Swansea University, Swansea, SA2 8PP, UK
| | - David W James
- Swansea University Medical School, Swansea University, Swansea, SA2 8PP, UK
| | - Caroline Bissardon
- Université Grenoble Alpes, INSERM, UA7 STROBE, Synchrotron Radiation for Biomedicine, Grenoble, France
| | - Salvatore Gazze
- Swansea University Medical School, Swansea University, Swansea, SA2 8PP, UK
| | - Franziska Knodel
- Department of Biochemistry, Institute of Biochemistry and Technical Biochemistry, University of Stuttgart, D-70550, Stuttgart, Germany
| | - Olivier Proux
- OSUG, UAR 832 CNRS, Université Grenoble Alpes, 38041, Grenoble, France
| | | | - Philipp Rathert
- Department of Biochemistry, Institute of Biochemistry and Technical Biochemistry, University of Stuttgart, D-70550, Stuttgart, Germany
| | - Sylvain Bohic
- Université Grenoble Alpes, INSERM, UA7 STROBE, Synchrotron Radiation for Biomedicine, Grenoble, France; ESRF, European Synchrotron Radiation Facility, CS, 40220, 38043, Grenoble, Cedex 9, France
| | - Deyarina Gonzalez
- Swansea University Medical School, Swansea University, Swansea, SA2 8PP, UK
| | - Lewis W Francis
- Swansea University Medical School, Swansea University, Swansea, SA2 8PP, UK
| | | | - R Steven Conlan
- Swansea University Medical School, Swansea University, Swansea, SA2 8PP, UK.
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Nie X, Mu G, Guo Y, Yang S, Wang X, Ye Z, Tan Q, Wang M, Zhou M, Ma J, Chen W. Associations of selenium exposure with blood lipids: Exploring mediating DNA methylation sites in general Chinese urban non-smokers. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 869:161815. [PMID: 36708841 DOI: 10.1016/j.scitotenv.2023.161815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 01/17/2023] [Accepted: 01/20/2023] [Indexed: 06/18/2023]
Abstract
Selenium (Se) is widely distributed in the total environment and people are commonly exposed to Se, while the potential effects and mechanisms of Se exposure on blood lipids have not been well established. This study aimed to assess the associations of urinary Se (SeU) with blood lipids and explore the potential mediating DNA methylation sites. We included 2844 non-smoke participants from the second follow-up (2017-2018) of the Wuhan-Zhuhai cohort (WHZH) in this study. SeU and blood lipids [i.e., total cholesterol (TC), triglycerides (TG), low-density lipoprotein cholesterol (LDL), and high-density lipoprotein cholesterol (HDL)] for all participants were determined. The associations of SeU with blood lipids were analyzed by generalized linear models. Then, we conducted the blood lipids related epigenome-wide association studies (EWAS) among 221 never smokers, and the mediation analysis was conducted to explore the potential mediating cytosine-phosphoguanine (CpG) sites in the above associations. In this study, the SeU concentration of the participants in this study was 1.40 (0.94, 2.08) μg/mmol Cr. The SeU was positively associated with TC and LDL, and not associated with TG and HDL. We found 131, 3, and 1 new CpG sites related to TC, HDL, and LDL, respectively. Mediation analyses found that the methylation of cg06964030 (within MIR1306) and cg15824094 (within PLCH2) significantly mediated the positive association between SeU and TC. In conclusion, high levels of Se exposure were associated with increased TC and LDL among non-smokers, and the methylation of MIR1306 and PLCH2 partly mediated Se-associated TC increase. These findings provide new insights into the effects and mechanisms of Se exposure on lipids metabolism and highlight the importance of controlling Se exposure and intake for preventing high blood lipids.
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Affiliation(s)
- Xiuquan Nie
- Department of Occupational & Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Ge Mu
- Department of Occupational & Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Yanjun Guo
- Department of Occupational & Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Shijie Yang
- Department of Occupational & Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Xing Wang
- Department of Occupational & Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Zi Ye
- Department of Occupational & Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Qiyou Tan
- Department of Occupational & Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Mengyi Wang
- Department of Occupational & Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Min Zhou
- Department of Occupational & Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Jixuan Ma
- Department of Occupational & Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Weihong Chen
- Department of Occupational & Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China.
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Chan LS, Liu J, Li MSC, Li L, Tao Q, Mok TSK. Selenite as a dual apoptotic and ferroptotic agent synergizes with EGFR and KRAS inhibitors with epigenetic interference. Clin Epigenetics 2023; 15:36. [PMID: 36864513 PMCID: PMC9983273 DOI: 10.1186/s13148-023-01454-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 02/22/2023] [Indexed: 03/04/2023] Open
Abstract
BACKGROUND Selenium, an essential trace element, has previously been investigated as a pro-apoptotic and DNA demethylation agent. It sensitizes the response to chemotherapy in patients who were refractory to cytotoxic agents. Meanwhile, ferroptosis is a novel approach to cancer treatment by triggering cell death and reversing drug resistance. The role of selenium in treating cancer cells harboring druggable oncogenic alterations and its underlying mechanism are largely unknown. RESULTS We treated lung adenocarcinoma cell lines-EGFR-mutant H1975 (H1975 EGFR p.L858R and p.T790M) and KRAS-mutant H358 (H358 KRAS p.G12C), with sodium selenite to examine its effect on cell apoptosis, ferroptosis, and DNA methylation, as well as its interaction with existing targeted therapy, osimertinib, and adagrasib. We observed selenite to be a dual apoptotic and ferroptotic agent on lung cancer cells, associated with the activation of p38-ATF4-DDIT3 axis in the unfolded protein response. Ferroptosis induction was more remarkable in H1975 than H358. Selenite also altered cellular DNA methylation machinery through downregulating DNMT1 and upregulating TET1, though not as a major mechanism of its activity. Low-dose selenite synergized with osimertinib in EGFR-mutant H1975, and with adagrasib in KRAS-mutant H358, with stronger synergism observed in H1975. CONCLUSION These results suggest that selenite is a potential apoptotic and ferroptotic drug candidate for the treatment of especially EGFR- and potentially KRAS-mutant lung cancer.
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Affiliation(s)
- Lok Seng Chan
- Cancer Epigenetics Laboratory, Department of Clinical Oncology, State Key Laboratory of Translational Oncology, Sir YK Pao Center for Cancer and Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Room 315, Sir Yue-Kong Pao Center for Cancer, Shatin, Hong Kong
| | - Johnson Liu
- Cancer Epigenetics Laboratory, Department of Clinical Oncology, State Key Laboratory of Translational Oncology, Sir YK Pao Center for Cancer and Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Room 315, Sir Yue-Kong Pao Center for Cancer, Shatin, Hong Kong
| | - Molly S C Li
- Cancer Epigenetics Laboratory, Department of Clinical Oncology, State Key Laboratory of Translational Oncology, Sir YK Pao Center for Cancer and Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Room 315, Sir Yue-Kong Pao Center for Cancer, Shatin, Hong Kong
| | - Lili Li
- Cancer Epigenetics Laboratory, Department of Clinical Oncology, State Key Laboratory of Translational Oncology, Sir YK Pao Center for Cancer and Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Room 315, Sir Yue-Kong Pao Center for Cancer, Shatin, Hong Kong
| | - Qian Tao
- Cancer Epigenetics Laboratory, Department of Clinical Oncology, State Key Laboratory of Translational Oncology, Sir YK Pao Center for Cancer and Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Room 315, Sir Yue-Kong Pao Center for Cancer, Shatin, Hong Kong.
| | - Tony S K Mok
- Cancer Epigenetics Laboratory, Department of Clinical Oncology, State Key Laboratory of Translational Oncology, Sir YK Pao Center for Cancer and Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Room 315, Sir Yue-Kong Pao Center for Cancer, Shatin, Hong Kong
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An Assessment of Serum Selenium Concentration in Women with Ovarian Cancer. Nutrients 2023; 15:nu15040850. [PMID: 36839209 PMCID: PMC9963663 DOI: 10.3390/nu15040850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 01/25/2023] [Accepted: 02/03/2023] [Indexed: 02/11/2023] Open
Abstract
BACKGROUND Available studies on the effect of serum selenium levels on the risk of malignancies show some conflicting results. In this study, we investigated the correlation between serum selenium levels and ovarian cancer occurrence. METHODS 314 women (157 diseased patients and 157 healthy ones) matched in terms of age and BMI were included in the study. The measurements of selenium in the collected blood samples were performed using an ICP mass spectrometer. Univariable and multivariable analyzes were performed to determine the relationship between the factors under the study and the occurrence of ovarian cancer. RESULTS The mean concentration of selenium was lower among diseased ones than among controls (53.31 μg/L vs. 78.99 μg/L). A decrease in selenium concentration was noticed with the advancement of ovarian cancer. In univariable and multivariable analyzes, a clear relationship between low selenium concentration and the occurrence of ovarian cancer was found (35.3 (95% CI: 11.2-111; p < 0.001) and 45.8 (95% CI: 12.8-164; p < 0.001)). CONCLUSION The studied patients with ovarian cancer are characterized by statistically significant lower serum selenium levels than patients from the control group. Among the study group, a decrease in selenium concentration was observed with an increase in the FIGO stage. The determination of the role of selenium as a prophylactic factor in ovarian cancer requires further prospective studies.
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Biological Activity of Selenium and Its Impact on Human Health. Int J Mol Sci 2023; 24:ijms24032633. [PMID: 36768955 PMCID: PMC9917223 DOI: 10.3390/ijms24032633] [Citation(s) in RCA: 45] [Impact Index Per Article: 45.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 01/25/2023] [Accepted: 01/26/2023] [Indexed: 02/03/2023] Open
Abstract
Selenium (Se) is a naturally occurring metalloid element essential to human and animal health in trace amounts but it is harmful in excess. Se plays a substantial role in the functioning of the human organism. It is incorporated into selenoproteins, thus supporting antioxidant defense systems. Selenoproteins participate in the metabolism of thyroid hormones, control reproductive functions and exert neuroprotective effects. Among the elements, Se has one of the narrowest ranges between dietary deficiency and toxic levels. Its level of toxicity may depend on chemical form, as inorganic and organic species have distinct biological properties. Over the last decades, optimization of population Se intake for the prevention of diseases related to Se deficiency or excess has been recognized as a pressing issue in modern healthcare worldwide. Low selenium status has been associated with an increased risk of mortality, poor immune function, cognitive decline, and thyroid dysfunction. On the other hand, Se concentrations slightly above its nutritional levels have been shown to have adverse effects on a broad spectrum of neurological functions and to increase the risk of type-2 diabetes. Comprehension of the selenium biochemical pathways under normal physiological conditions is therefore an important issue to elucidate its effect on human diseases. This review gives an overview of the role of Se in human health highlighting the effects of its deficiency and excess in the body. The biological activity of Se, mainly performed through selenoproteins, and its epigenetic effect is discussed. Moreover, a brief overview of selenium phytoremediation and rhizofiltration approaches is reported.
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Liu J, Shi L, Tuo X, Ma X, Hou X, Jiang S, Lv J, Cheng Y, Guo D, Han B. Preparation, characteristic and anti-inflammatory effect of selenium nanoparticle-enriched probiotic strain Enterococcus durans A8-1. J Trace Elem Med Biol 2022; 74:127056. [PMID: 35939922 DOI: 10.1016/j.jtemb.2022.127056] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 06/01/2022] [Accepted: 08/02/2022] [Indexed: 10/16/2022]
Abstract
BACKGROUND Elemental selenium, a new type of selenium supplement, can be biosynthesized via microorganisms. This study is to characterize a patent probiotic bacteria Enterococcus durans A8-1, capable of reducing selenite (Se6+ or Se4+) to elemental selenium (Se0) with the formation of Se nanoparticles (SeNPs). METHODS The selenium nanoparticles synthesized from A8-1 were characterized using scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive spectroscopy (EDS), and X-ray photoelectron energy (XPS). The Caco2 cells were used to investigate the effects of Se-enriched A8-1 on the viability, membrane integrity, and the regulation of cellular inflammation through MTT and ELISA assays. The selenium-enriched metabolic function of A8-1 was analyzed by transcriptome sequencing. RESULTS E. durans A8-1 has the ability to synthesize intracellular SeNPs that are incubated with 60 mg/L sodium selenite for 18 h at 37 °C with 7 % inoculum under aerobic conditions. The selenium-enriched transformation rate increased to 43.46 %. After selenium enrichment, there were no significant morphological changes in E. durans A8-1 cells. The cells also exhibited no cytotoxicity when incubated with Caco-2 cells, and increased cellular proliferation. Furthermore, Se-enriched A8-1 cells antagonize the adhesion of S. typhimurium ATCC14028 onto the surface of Caco-2 cells protecting cell membrane integrity and was assessed by measuring LDH and AKP activities (P <0.001, P <0.001). Moreover, Se-enriched A8-1 could protect Caco-2 cells from inflammation induced by lipopolysaccharide and help the cells alleviate the inflammation through the reduced expression of cytokine IL-8 (P = 0.0012, P <0.001) and TNF-α (P <0.001, P <0.001). Based on transcriptome sequencing in Se-enriched E. durans A8-1 cells, there were 485 up-regulated genes and 322 down-regulated genes (Padj < 0.05). There were 19 predicted up-regulated genes that are highly related to the potential selenium metabolism pathway, which focuses on the transportation of Na2SeO3 by membrane proteins, and gradually reduces Na2SeO3 to elemental selenium aggregates that are deposited onto the membrane surface via the intracellular redox response. CONCLUSION E. durans A8-1 could convert extracellular selenite into intracellular biological SeNPs via redox pathway with strong selenium-rich metabolism, and its biological SeNPs have anti-inflammatory properties, which have the potential for the development of composite selenium nanomaterials and can be further studied for the function of SeNPs with potential applications.
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Affiliation(s)
- Jin Liu
- School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Lu Shi
- School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Xiaohong Tuo
- School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Xinxin Ma
- School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Xinyao Hou
- School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Sijin Jiang
- School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Jia Lv
- School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Yue Cheng
- School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China; Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, Xi'an, China
| | - Dagang Guo
- School of Material Science and Engineering, Xi'an Jiaotong University, Xi'an, China
| | - Bei Han
- School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China; Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, Xi'an, China.
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Younesian O, Sheikh Arabi M, Jafari SM, Joshaghani H. Long-Term Excessive Selenium Supplementation Affects Gene Expression in Esophageal Tissue of Rats. Biol Trace Elem Res 2022; 201:3387-3394. [PMID: 36319827 DOI: 10.1007/s12011-022-03413-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 09/02/2022] [Indexed: 04/17/2023]
Abstract
Esophageal cancer is one of the leading causes of cancer death and the seventh most prevalent cancer worldwide. Considering the positive association of high selenium with the prevalence of esophageal cancer, we have investigated the effect of high doses of selenium on gene expression in the normal esophageal tissue of rats. Twenty male rats were randomly divided into four groups: control group, group 2 mg Se/L, 10 mg Se/L, and 20 mg Se/L rats fed with a basal basic diet and 2, 10, and 20 mg Se/L as sodium selenite in drinking water, respectively, for 20 weeks. Serum malondialdehyde and glutathione peroxidase activity were measured. Moreover, the expression and concentration of the cyclin D1, cyclin E, KRAS, p53, NF-kB, TGF-β, and MGMT in the esophageal tissue were analyzed and compared between the four groups. In normal esophageal tissue, selenium supplementations (2, 10, and 20 mg Se/L) increased the mRNA levels of cyclin D1, P53, KRAS, NF-κB p65, and MGMT and decreased the mRNA level of TGFß1. The concentrations of cyclin D1 and MGMT were also significantly increased by selenium supplementations. Selenium supplementations had no significant effect on serum MDA but significantly increased GPX activity. The present study suggests that selenium supplementation (2, 10, and 20 mg Se/L) affects gene expression related to inflammation, Cell proliferation, and apoptosis in the normal esophageal tissue. However, there were no observed abnormalities other than reduced growth with supplementation of 20 mg/L as Na2SeO3 in rats.
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Affiliation(s)
- Ommolbanin Younesian
- Metabolic Disorders Research Center, Golestan University of Medical Sciences, Gorgan, Golestan Province, Iran
| | - Mehdi Sheikh Arabi
- Medical Cellular and Molecular Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Seyyed Mehdi Jafari
- Metabolic Disorders Research Center, Golestan University of Medical Sciences, Gorgan, Golestan Province, Iran
| | - Hamidreza Joshaghani
- Laboratory Sciences Research Center, Golestan University of Medical Sciences, 60 Kola, Road, Falsafi Building, Gorgan, Iran.
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11
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Zhang Y, He Q. The role of SELENBP1 and its epigenetic regulation in carcinogenic progression. Front Genet 2022; 13:1027726. [PMID: 36386843 PMCID: PMC9663989 DOI: 10.3389/fgene.2022.1027726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 10/10/2022] [Indexed: 01/24/2023] Open
Abstract
The initiation and progression of cancer is modulated through diverse genetic and epigenetic modifications. The epigenetic machinery regulates gene expression through intertwined DNA methylation, histone modifications, and miRNAs without affecting their genome sequences. SELENBP1 belongs to selenium-binding proteins and functions as a tumor suppressor. Its expression is significantly downregulated and correlates with carcinogenic progression and poor survival in various cancers. The role of SELENBP1 in carcinogenesis has not been fully elucidated, and its epigenetic regulation remains poorly understood. In this review, we summarize recent findings on the function and regulatory mechanisms of SELENBP1 during carcinogenic progression, with an emphasis on epigenetic mechanisms. We also discuss the potential cancer treatment targeting epigenetic modification of SELENBP1, either alone or in combination with selenium-containing compounds or dietary selenium.
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12
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Darbani Torshizi M, Younesian O, Aboomardani M, Roshandel G, Hosseinzadeh S, Hosseini Alarzi SS, Joshaghani H. Serum Selenium, Vitamin A, and Vitamin E Levels of Healthy Individuals in High- and Low-Risk Areas of Esophageal Cancer. Middle East J Dig Dis 2022; 14:396-403. [PMID: 37547507 PMCID: PMC10404097 DOI: 10.34172/mejdd.2022.300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 07/10/2022] [Indexed: 08/08/2023] Open
Abstract
Background: Esophageal cancer is one of the main causes of cancer mortality in the world. Golestan province, in the northern part of Iran, has the highest esophageal cancer rate in the world. The north and south districts of Golestan province can be classified as low and high-risk areas for esophageal cancer. One of the potential risk factors for esophageal cancer in this population is a nutrient-deficient diet. Dietary antioxidant compounds such as selenium, vitamin E, vitamin A, and β-carotene are reactive oxygen species (ROC) scavengers that play a key role in cellular responses to oxidative stress and preventing DNA damage. This study aims to compare the serum levels of selenium, vitamin E, and vitamin A in healthy individuals in high and low-risk areas of esophageal cancer. Methods: This study is a population of 242 healthy individuals. Serum selenium levels were assessed by atomic absorption spectroscopy. Vitamin E and A were assessed by reversed-phase high-performance liquid chromatography. Results: Vitamin E levels of healthy individuals in high-risk areas were significantly lower than in low-risk areas, while there was no significant difference between the selenium and vitamin A levels of healthy individuals in high-risk areas and low-risk areas. Also, there was no significant difference between selenium, vitamin E, and vitamin A levels in urban and rural areas and men and women in Golestan province. Conclusion: High levels of selenium with lower levels of vitamin E, along with other risk factors, may be associated with esophageal squamous cell carcinoma in high-risk areas of Golestan province.
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Affiliation(s)
- Mehdi Darbani Torshizi
- Golestan Research Center of Gastroenterology and Hepatology, Golestan University of Medical Sciences, Gorgan, Iran
| | | | - Maryam Aboomardani
- Department of Nutrition, Golestan University of Medical Sciences, Gorgan, Iran
| | - Gholamreza Roshandel
- Golestan Research Center of Gastroenterology and Hepatology, Golestan University of Medical Sciences, Gorgan, Iran
| | - Sara Hosseinzadeh
- Laboratory Sciences Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | | | - Hamidreza Joshaghani
- Laboratory Sciences Research Center, Golestan University of Medical Sciences, Gorgan, Iran
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13
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Shengyu C, Yinhua L, Yuanhong L, Jinbo Z, Can F, Hao X, Changjiang Z. Selenium alleviates heart remodeling through Sirt1/AKT/GSK-3β pathway. Int Immunopharmacol 2022; 111:109158. [PMID: 35987147 DOI: 10.1016/j.intimp.2022.109158] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 07/31/2022] [Accepted: 08/10/2022] [Indexed: 11/05/2022]
Abstract
Selenium, reported as an important medium for maintaining the body's homeostasis, acts to have multiple bioeffects including anti-inflammatory, anti-oxidant and anti-apoptosis effects. However, its role in heart failure still remains unclear. In this study, we explored the effects of selenium on heart failure and its possible mechanism. The heart failure models were induced by aortic banding and isoproterenol. H&E, TUNEL and PSR staining were performed to detect the degree of cardiomyocyte hypertrophy, apoptosis rates and heart fibrosis, respectively. Real-time quantitative polymerase chain reaction (qRT-PCR) was used to detect different mRNA levels, and western blot was applied to assess the expressions of relative proteins. Immunofluorescence staining was used to evaluate α-SMA density. We first found that treatment of selenium alleviated heart fibrosis and the development of heart failure but not cardiomyocyte cross sectional areas. Besides, selenium improved heart levels of superoxide dismutase2 (SOD2), glutathione peroxidase (Gpx) and glutathione (GSH) and the activity of SOD, accompanied by decreased apoptosis rate. In addition, our in vitro study has shown that selenium reduced mRNA levels of collagen Ⅰ and collagen III, expressions of a-SMA, p-AKT/AKT and p-GSK-3β/ GSK-3β, apoptosis rates and reactive oxygen species (ROS) levels in H9C2 cardio-myoblasts treated with TGF-β1. Moreover, the level of Sirt1 was found to be up-regulated by selenium which effects were weakened after the administration of small interfering RNA (siRNA)-Sirt1 or EX527 (inhibitor of Sirt1). Our current results have demonstrated that the protective effects of selenium on heart hypertrophy is through the regulation of Sirt1 and AKT/GSK-3β pathway.
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Affiliation(s)
- Cui Shengyu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China; Cardiovascular Research Institute, Wuhan University, Wuhan, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Luo Yinhua
- Department of Central Hospital of Tujia and Miao Autonomous Prefecture, Hubei University of Medicine, Shiyan, China
| | - Li Yuanhong
- Cardiovascular Disease Center, Central Hospital of Tujia and Miao Autonomous Prefecture, Enshi Clinical College of Wuhan University, Enshi, China
| | - Zhao Jinbo
- Cardiovascular Disease Center, Central Hospital of Tujia and Miao Autonomous Prefecture, Enshi Clinical College of Wuhan University, Enshi, China
| | - Fang Can
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China; Cardiovascular Research Institute, Wuhan University, Wuhan, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Xia Hao
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China; Cardiovascular Research Institute, Wuhan University, Wuhan, China; Hubei Key Laboratory of Cardiology, Wuhan, China.
| | - Zhang Changjiang
- Department of Cardiology, Minda Hospital of Hubei Minzu University, Enshi, China.
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14
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Zhu H, Wang X, Meng X, Kong Y, Li Y, Yang C, Guo Y, Wang X, Yang H, Liu Z, Wang F. Selenium Supplementation Improved Cardiac Functions by Suppressing DNMT2-Mediated GPX1 Promoter DNA Methylation in AGE-Induced Heart Failure. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:5402997. [PMID: 35432721 PMCID: PMC9007686 DOI: 10.1155/2022/5402997] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 03/03/2022] [Indexed: 12/14/2022]
Abstract
Objective Advanced glycation end products (AGEs) are featured metabolites associated with diabetic cardiomyopathy which is characterized by heart failure caused by myocyte apoptosis. Selenium was proved cardioprotective. This study was aimed at investigating the therapeutic effects and underlying mechanisms of selenium supplementation on AGE-induced heart failure. Methods Rats and primary myocytes were exposed to AGEs. Selenium supplementation was administrated. Cardiac functions and myocyte apoptosis were evaluated. Oxidative stress was assessed by total antioxidant capacity (TAC), reactive oxygen species (ROS) generation, and GPX activity. Expression levels of DNA methyltransferases (DNMTs) and glutathione peroxidase 1 (GPX1) were evaluated. DNA methylation of the GPX1 promoter was analyzed. Results AGE exposure elevated intracellular ROS generation, induced myocyte apoptosis, and impaired cardiac functions. AGE exposure increased DNMT1 and DNMT2 expression, leading to the reduction of GPX1 expression and activity in the heart. Selenium supplementation decreased DNMT2 expression, recovered GPX1 expression and activity, and alleviated intracellular ROS generation and myocyte apoptosis, resulting in cardiac function recovery. DNA methylation analysis in primary myocytes indicated that selenium supplementation or DNMT inhibitor AZA treatment reduced DNA methylation of the GPX1 gene promoter. Selenium supplementation and AZA administration showed synergic inhibitory effect on GPX1 gene promoter methylation. Conclusions Selenium supplementation showed cardioprotective effects on AGE-induced heart failure by suppressing ROS-mediated myocyte apoptosis. Selenium supplementation suppressed ROS generation by increasing GPX1 expression via inhibiting DNMT2-induced GPX1 gene promoter DNA methylation in myocytes exposed to AGEs.
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Affiliation(s)
- Huolan Zhu
- Department of Geriatrics, Shaanxi Provincial Clinical Research Center for Geriatric Medicine, Shaanxi Provincial People's Hospital, Xi'an, China
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Xiang Wang
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
- Graduate School, Peking Union Medical College, Chinese Academy of Medical Science, Beijing, China
| | - Xuyang Meng
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
- Graduate School, Peking Union Medical College, Chinese Academy of Medical Science, Beijing, China
| | - Yiya Kong
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
- Graduate School, Peking Union Medical College, Chinese Academy of Medical Science, Beijing, China
| | - Yi Li
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Chenguang Yang
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Ying Guo
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Xiqiang Wang
- Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an, China
- Cardiovascular Research Center, Shaanxi Provincial People's Hospital, Xi'an, China
| | - Haini Yang
- Cardiovascular Research Center, Shaanxi Provincial People's Hospital, Xi'an, China
| | - Zhongwei Liu
- Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an, China
- Cardiovascular Research Center, Shaanxi Provincial People's Hospital, Xi'an, China
| | - Fang Wang
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
- Graduate School, Peking Union Medical College, Chinese Academy of Medical Science, Beijing, China
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15
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Chen G, Long J, Zhu R, Yang G, Qiu J, Zhao F, Liu Y, Tao J, Zhang T, Zhao Y. Identification and Validation of Constructing the Prognostic Model With Four DNA Methylation-Driven Genes in Pancreatic Cancer. Front Cell Dev Biol 2022; 9:709669. [PMID: 35087823 PMCID: PMC8786741 DOI: 10.3389/fcell.2021.709669] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 11/29/2021] [Indexed: 12/17/2022] Open
Abstract
Background: Pancreatic cancer (PC) is a highly aggressive gastrointestinal tumor and has a poor prognosis. Evaluating the prognosis validly is urgent for PC patients. In this study, we utilized the RNA-sequencing (RNA-seq) profiles and DNA methylation expression data comprehensively to develop and validate a prognostic signature in patients with PC. Methods: The integrated analysis of RNA-seq, DNA methylation expression profiles, and relevant clinical information was performed to select four DNA methylation-driven genes. Then, a prognostic signature was established by the univariate, multivariate Cox, and least absolute shrinkage and selection operator (LASSO) regression analyses in The Cancer Genome Atlas (TCGA) dataset. GSE62452 cohort was utilized for external validation. Finally, a nomogram model was set up and evaluated by calibration curves. Results: Nine DNA methylation-driven genes that were related to overall survival (OS) were identified. After multivariate Cox and LASSO regression analyses, four of these genes (RIC3, MBOAT2, SEZ6L, and OAS2) were selected to establish the predictive signature. The PC patients were stratified into two groups according to the median risk score, of which the low-risk group displayed a prominently favorable OS compared with the high-risk group, whether in the training (p < 0.001) or validation (p < 0.01) cohort. Then, the univariate and multivariate Cox regression analyses showed that age, grade, risk score, and the number of positive lymph nodes were significantly associated with OS in PC patients. Therefore, we used these clinical variables to construct a nomogram; and its performance in predicting the 1-, 2-, and 3-year OS of patients with PC was assessed via calibration curves. Conclusion: A prognostic risk score signature was built with the four alternative DNA methylation-driven genes. Furthermore, in combination with the risk score, age, grade, and the number of positive lymph nodes, a nomogram was established for conveniently predicting the individualized prognosis of PC patients.
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Affiliation(s)
- Guangyu Chen
- State Key Laboratory of Complex Severe and Rare Diseases, General Surgery Department, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Junyu Long
- Department of Liver Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ruizhe Zhu
- State Key Laboratory of Complex Severe and Rare Diseases, General Surgery Department, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Gang Yang
- State Key Laboratory of Complex Severe and Rare Diseases, General Surgery Department, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jiangdong Qiu
- State Key Laboratory of Complex Severe and Rare Diseases, General Surgery Department, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Fangyu Zhao
- State Key Laboratory of Complex Severe and Rare Diseases, General Surgery Department, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yuezhe Liu
- State Key Laboratory of Complex Severe and Rare Diseases, General Surgery Department, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jinxin Tao
- State Key Laboratory of Complex Severe and Rare Diseases, General Surgery Department, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Taiping Zhang
- State Key Laboratory of Complex Severe and Rare Diseases, General Surgery Department, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Clinical Immunology Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yupei Zhao
- State Key Laboratory of Complex Severe and Rare Diseases, General Surgery Department, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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16
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Huang Y, Zhang W, Zhao S, Xie Z, Chen S, Yi G. Ultra-sensitive detection of DNA N6-adenine methyltransferase based on a 3D tetrahedral fluorescence scaffold assisted by symmetrical double-ring dumbbells. Anal Chim Acta 2021; 1184:339018. [PMID: 34625260 DOI: 10.1016/j.aca.2021.339018] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 07/13/2021] [Accepted: 08/31/2021] [Indexed: 12/11/2022]
Abstract
DNA methylation is an epigenetic modification that plays a vital role in X chromosome inactivation, genome imprinting, and gene expression. DNA methyltransferase establishes and maintains a stable methylation state in genomic DNA. Efficient and specific DNA methyltransferase testing is essential for the early diagnosis and treatment of cancer. In this study, we designed an ultra-sensitive fluorescent biosensor, based on a 3D tetrahedral fluorescent scaffold assisted by symmetrical double-ring dumbbells, for the detection of DNA-[N 6-adenine]-methyltransferase (Dam MTase). Double-stranded DNA was methylated by Dam MTase and then digested by DpnI to form two identical dumbbell rings. The 3D tetrahedral fluorescent scaffold was synthesized from four oligonucleotide chains containing hairpins. When the sheared dumbbells reacted with the 3D tetrahedral fluorescent scaffold, the hairpins opened and a fluorescence signal could be detected. The strategy was successful over a wide detection range, from 0.002 to 100 U mL-1 Dam MTase, and the lowest detection limit was 0.00036 U mL-1. Control experiments with M.SssI methyltransferase and HpaII methylation restriction endonuclease confirmed the specificity of the method. Experiments with spiked human serum and the 5-fluorouracil inhibitor proved the suitability of the method for early cancer diagnosis.
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Affiliation(s)
- Yuqi Huang
- Key Laboratory of Medical Diagnostics, Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, PR China
| | - Wenxiu Zhang
- Key Laboratory of Medical Diagnostics, Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, PR China
| | - Shuhui Zhao
- Key Laboratory of Medical Diagnostics, Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, PR China
| | - Zuowei Xie
- Key Laboratory of Medical Diagnostics, Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, PR China
| | - Siyi Chen
- Key Laboratory of Medical Diagnostics, Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, PR China
| | - Gang Yi
- Key Laboratory of Medical Diagnostics, Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, PR China.
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17
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Canter JA, Ernst SE, Peters KM, Carlson BA, Thielman NRJ, Grysczyk L, Udofe P, Yu Y, Cao L, Davis CD, Gladyshev VN, Hatfield DL, Tsuji PA. Selenium and the 15kDa Selenoprotein Impact Colorectal Tumorigenesis by Modulating Intestinal Barrier Integrity. Int J Mol Sci 2021; 22:10651. [PMID: 34638991 PMCID: PMC8508755 DOI: 10.3390/ijms221910651] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 09/26/2021] [Accepted: 09/30/2021] [Indexed: 01/19/2023] Open
Abstract
Selenoproteins play important roles in many cellular functions and biochemical pathways in mammals. Our previous study showed that the deficiency of the 15 kDa selenoprotein (Selenof) significantly reduced the formation of aberrant crypt foci (ACF) in a mouse model of azoxymethane (AOM)-induced colon carcinogenesis. The objective of this study was to examine the effects of Selenof on inflammatory tumorigenesis, and whether dietary selenium modified these effects. For 20 weeks post-weaning, Selenof-knockout (KO) mice and littermate controls were fed diets that were either deficient, adequate or high in sodium selenite. Colon tumors were induced with AOM and dextran sulfate sodium. Surprisingly, KO mice had drastically fewer ACF but developed a similar number of tumors as their littermate controls. Expression of genes important in inflammatory colorectal cancer and those relevant to epithelial barrier function was assessed, in addition to structural differences via tissue histology. Our findings point to Selenof's potential role in intestinal barrier integrity and structural changes in glandular and mucin-producing goblet cells in the mucosa and submucosa, which may determine the type of tumor developing.
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Affiliation(s)
- Jessica A. Canter
- Department of Biological Sciences, Towson University, Towson, MD 21252, USA; (J.A.C.); (S.E.E.); (K.M.P.); (N.R.J.T.); (L.G.); (P.U.)
| | - Sarah E. Ernst
- Department of Biological Sciences, Towson University, Towson, MD 21252, USA; (J.A.C.); (S.E.E.); (K.M.P.); (N.R.J.T.); (L.G.); (P.U.)
| | - Kristin M. Peters
- Department of Biological Sciences, Towson University, Towson, MD 21252, USA; (J.A.C.); (S.E.E.); (K.M.P.); (N.R.J.T.); (L.G.); (P.U.)
| | - Bradley A. Carlson
- Mouse Cancer Genetics Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA; (B.A.C.); (D.L.H.)
| | - Noelle R. J. Thielman
- Department of Biological Sciences, Towson University, Towson, MD 21252, USA; (J.A.C.); (S.E.E.); (K.M.P.); (N.R.J.T.); (L.G.); (P.U.)
- Lake Erie College of Osteopathic Medicine, Erie, PA 16509, USA
| | - Lara Grysczyk
- Department of Biological Sciences, Towson University, Towson, MD 21252, USA; (J.A.C.); (S.E.E.); (K.M.P.); (N.R.J.T.); (L.G.); (P.U.)
| | - Precious Udofe
- Department of Biological Sciences, Towson University, Towson, MD 21252, USA; (J.A.C.); (S.E.E.); (K.M.P.); (N.R.J.T.); (L.G.); (P.U.)
| | - Yunkai Yu
- Genetics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA; (Y.Y.); (L.C.)
| | - Liang Cao
- Genetics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA; (Y.Y.); (L.C.)
| | - Cindy D. Davis
- Office of Dietary Supplements, National Institutes of Health, Bethesda, MD 20817, USA;
| | - Vadim N. Gladyshev
- Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02215, USA;
| | - Dolph L. Hatfield
- Mouse Cancer Genetics Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA; (B.A.C.); (D.L.H.)
| | - Petra A. Tsuji
- Department of Biological Sciences, Towson University, Towson, MD 21252, USA; (J.A.C.); (S.E.E.); (K.M.P.); (N.R.J.T.); (L.G.); (P.U.)
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Berry T, Abohamza E, Moustafa AA. Treatment-resistant schizophrenia: focus on the transsulfuration pathway. Rev Neurosci 2021; 31:219-232. [PMID: 31714892 DOI: 10.1515/revneuro-2019-0057] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 07/19/2019] [Indexed: 12/12/2022]
Abstract
Treatment-resistant schizophrenia (TRS) is a severe form of schizophrenia. The severity of illness is positively related to homocysteine levels, with high homocysteine levels due to the low activity of the transsulfuration pathway, which metabolizes homocysteine in synthesizing L-cysteine. Glutathione levels are low in schizophrenia, which indicates shortages of L-cysteine and low activity of the transsulfuration pathway. Hydrogen sulfide (H2S) levels are low in schizophrenia. H2S is synthesized by cystathionine β-synthase and cystathionine γ-lyase, which are the two enzymes in the transsulfuration pathway. Iron-sulfur proteins obtain sulfur from L-cysteine. The oxidative phosphorylation (OXPHOS) pathway has various iron-sulfur proteins. With low levels of L-cysteine, iron-sulfur cluster formation will be dysregulated leading to deficits in OXPHOS in schizophrenia. Molybdenum cofactor (MoCo) synthesis requires sulfur, which is obtained from L-cysteine. With low levels of MoCo synthesis, molybdenum-dependent sulfite oxidase (SUOX) will not be synthesized at appropriate levels. SUOX detoxifies sulfite from sulfur-containing amino acids. If sulfites are not detoxified, there can be sulfite toxicity. The transsulfuration pathway metabolizes selenomethionine, whereby selenium from selenomethionine can be used for selenoprotein synthesis. The low activity of the transsulfuration pathway decreases selenoprotein synthesis. Glutathione peroxidase (GPX), with various GPXs being selenoprotein, is low in schizophrenia. The dysregulations of selenoproteins would lead to oxidant stress, which would increase the methylation of genes and histones leading to epigenetic changes in TRS. An add-on treatment to mainline antipsychotics is proposed for TRS that targets the dysregulations of the transsulfuration pathway and the dysregulations of other pathways stemming from the transsulfuration pathway being dysregulated.
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Affiliation(s)
- Thomas Berry
- School of Social Sciences and Psychology, Western Sydney University, Sydney 2751, New South Wales, Australia
| | - Eid Abohamza
- Department of Social Sciences, College of Arts and Sciences, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Ahmed A Moustafa
- School of Social Sciences and Psychology, Western Sydney University, Sydney 2751, New South Wales, Australia.,Marcs Institute for Brain and Behaviour, Western Sydney University, Sydney 2751, New South Wales, Australia
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Weyde KVF, Olsen AK, Duale N, Kamstra JH, Skogheim TS, Caspersen IH, Engel SM, Biele G, Xia Y, Meltzer HM, Aase H, Villanger GD. Gestational blood levels of toxic metal and essential element mixtures and associations with global DNA methylation in pregnant women and their infants. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 787:147621. [PMID: 34000534 DOI: 10.1016/j.scitotenv.2021.147621] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 03/24/2021] [Accepted: 05/03/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Pregnant women and their fetuses are exposed to multiple toxic metals that together with variations in essential element levels may alter epigenetic regulation, such as DNA methylation. OBJECTIVES The aim of the study was to investigate the associations between gestational levels of toxic metals and essential elements and mixtures thereof, with global DNA methylation levels in pregnant women and their newborn children. METHODS Using 631 mother-child pairs from a prospective birth cohort (The Norwegian Mother, Father and Child Cohort Study), we measured maternal blood concentration (gestation week ~18) of five toxic metals and seven essential elements. We investigated associations as individual exposures and two-way interactions, using elastic net regression, and total mixture, using quantile g-computation, with blood levels of 5-methylcytocine (5mC) and 5-hydroxymethylcytosine (5hmC) in mothers during pregnancy and their newborn children (cord blood). Multiple testing was adjusted for using the Benjamini and Hochberg false discovery rate (FDR) approach. RESULTS The most sensitive marker of DNA methylation appeared to be 5mC levels. In pregnant mothers, elastic net regression indicated associations between 5mC and selenium and lead (non-linear), while in newborns results indicated relationships between maternal selenium, cobalt (non-linear) and mercury and 5mC, as well as copper (non-linear) and 5hmC levels. Several possible two-way interactions were identified (e.g. arsenic and mercury, and selenium and maternal smoking in newborns). None of these findings met the FDR threshold for multiple testing. No net effect was observed in the joint (mixture) exposure-approach using quantile g-computation. CONCLUSION We identified few associations between gestational levels of several toxic metals and essential elements and global DNA methylation in pregnant mothers and their newborn children. As DNA methylation dysregulation might be a key mechanism in disease development and thus of high importance for public health, our results should be considered as important candidates to investigate in future studies.
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Affiliation(s)
| | | | - Nur Duale
- Norwegian Institute of Public Health, Oslo, Norway
| | - Jorke H Kamstra
- Institute for Risk Assessment Sciences, Department of Population Health Sciences, Faculty of Veterinary Medicine, Utrecht University, the Netherlands
| | | | | | - Stephanie M Engel
- Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, USA
| | - Guido Biele
- Norwegian Institute of Public Health, Oslo, Norway; Department of Psychology, University of Oslo, Oslo, Norway
| | - Yankai Xia
- State Key Laboratory of Reproductive Medicine, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | | | - Heidi Aase
- Norwegian Institute of Public Health, Oslo, Norway
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20
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Gillman AS, Helmuth T, Koljack CE, Hutchison KE, Kohrt WM, Bryan AD. The Effects of Exercise Duration and Intensity on Breast Cancer-Related DNA Methylation: A Randomized Controlled Trial. Cancers (Basel) 2021; 13:4128. [PMID: 34439282 PMCID: PMC8394212 DOI: 10.3390/cancers13164128] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 08/09/2021] [Accepted: 08/12/2021] [Indexed: 12/31/2022] Open
Abstract
Emerging research suggests that one mechanism through which physical activity may decrease cancer risk is through its influence on the methylation of genes associated with cancer. The purpose of the current study was to prospectively test, using a rigorous experimental design, whether aerobic exercise affects DNA methylation in genes associated with breast cancer, as well as whether quantity of exercise completed affects change in DNA methylation in a dose-response manner. 276 women (M age = 37.25, SD = 4.64) were recruited from the Denver metro area for a randomized controlled trial in which participants were assigned to a supervised aerobic exercise program varying in a fully crossed design by intensity (55-65% versus 75-85% of VO2max) and duration (40 versus 20 min per session). DNA methylation was assessed via blood samples provided at baseline, after completing a 16-week supervised exercise intervention, and six months after the intervention. 137 participants completed the intervention, and 81 had viable pre-post methylation data. Contrary to our hypotheses, total exercise volume completed in kcal/kg/week was not associated with methylation from baseline to post-intervention for any of the genes of interest. An increase in VO2max over the course of the intervention, however, was associated with decreased post-intervention methylation of BRCA1, p = 0.01. Higher levels of self-reported exercise during the follow-up period were associated with lower levels of GALNT9 methylation at the six-month follow-up. This study provides hypothesis-generating evidence that increased exercise behavior and or increased fitness might affect methylation of some genes associated with breast cancer to reduce risk.
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Affiliation(s)
- Arielle S. Gillman
- Center for Health and Neuroscience, Genes, and Environment (CUChange), Department of Psychology & Neuroscience, University of Colorado Boulder, Boulder, CO 80309, USA; (T.H.); (K.E.H.); (A.D.B.)
| | - Timothy Helmuth
- Center for Health and Neuroscience, Genes, and Environment (CUChange), Department of Psychology & Neuroscience, University of Colorado Boulder, Boulder, CO 80309, USA; (T.H.); (K.E.H.); (A.D.B.)
| | - Claire E. Koljack
- University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; (C.E.K.); (W.M.K.)
| | - Kent E. Hutchison
- Center for Health and Neuroscience, Genes, and Environment (CUChange), Department of Psychology & Neuroscience, University of Colorado Boulder, Boulder, CO 80309, USA; (T.H.); (K.E.H.); (A.D.B.)
| | - Wendy M. Kohrt
- University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; (C.E.K.); (W.M.K.)
| | - Angela D. Bryan
- Center for Health and Neuroscience, Genes, and Environment (CUChange), Department of Psychology & Neuroscience, University of Colorado Boulder, Boulder, CO 80309, USA; (T.H.); (K.E.H.); (A.D.B.)
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21
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Mechanisms of the Cytotoxic Effect of Selenium Nanoparticles in Different Human Cancer Cell Lines. Int J Mol Sci 2021; 22:ijms22157798. [PMID: 34360564 PMCID: PMC8346078 DOI: 10.3390/ijms22157798] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/17/2021] [Accepted: 07/20/2021] [Indexed: 02/06/2023] Open
Abstract
In recent decades, studies on the functional features of Se nanoparticles (SeNP) have gained great popularity due to their high biocompatibility, stability, and pronounced selectivity. A large number of works prove the anticarcinogenic effect of SeNP. In this work, the molecular mechanisms regulating the cytotoxic effects of SeNP, obtained by laser ablation, were studied by the example of four human cancer cell lines: A-172 (glioblastoma), Caco-2, (colorectal adenocarcinoma), DU-145 (prostate carcinoma), MCF-7 (breast adenocarcinoma). It was found that SeNP had different concentration-dependent effects on cancer cells of the four studied human lines. SeNP at concentrations of less than 1 μg/mL had no cytotoxic effect on the studied cancer cells, with the exception of the A-172 cell line, for which 0.5 μg/mL SeNP was the minimum concentration affecting its metabolic activity. It was shown that SeNP concentration-dependently caused cancer cell apoptosis, but not necrosis. In addition, it was found that SeNP enhanced the expression of pro-apoptotic genes in almost all cancer cell lines, with the exception of Caco-2 and activated various pathways of adaptive and pro-apoptotic signaling pathways of UPR. Different effects of SeNP on the expression of ER-resident selenoproteins and selenium-containing glutathione peroxidases and thioredoxin reductases, depending on the cell line, were established. In addition, SeNP triggered Ca2+ signals in all investigated cancer cell lines. Different sensitivity of cancer cell lines to SeNP can determine the induction of the process of apoptosis in them through regulation of the Ca2+ signaling system, mechanisms of ER stress, and activation of various expression patterns of genes encoding pro-apoptotic proteins.
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22
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Qi C, Xu Z, Qian K, Shen G, Rong S, Zhang C, Zhang P, Ma C, Zhang Y, He L. Sodium selenite-carbon dots nanocomposites enhance acaricidal activity of fenpropathrin: Mechanism and application. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 777:145832. [PMID: 33684767 DOI: 10.1016/j.scitotenv.2021.145832] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 01/19/2021] [Accepted: 02/09/2021] [Indexed: 06/12/2023]
Abstract
As an essential trace element, selenium can be used to protect crops from pests, while, in nature, most crops cannot accumulate enough selenium from the soil to reach the effective dose for pest control. In this study, carbon dots modified with arginine in nano-scale was prepared and characterized, then, it was combined with sodium selenite to form selenium-carbon dots (Se-CDs). Function evaluation of Se-CDs showed that it could increase the absorption of selenium in plant leaves, promote the control efficiency of fenpropathrin, and protect plant from damage caused by Tetranychus cinnabarinus. In addition, we found that expressions of P450 genes and activity of P450 enzyme both decreased in selenium treated mites. In vivo, the acaricidal activity of fenpropathrin increased significantly when one of the P450 genes, CYP389B1, was silenced, and the recombinant protein of CYP389B1 could metabolize fenpropathrin in vitro. The results suggested that inhibiting the expression of P450 gene and repressing the detoxification of T. cinnabarinus was the molecular mechanism that how selenium promoted the acaricidal activity of fenpropathrin. The application of Se-CDs in the field will decrease the use of chemicals acaricides, reduce chemical residues, and ensure the safety of agricultural products.
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Affiliation(s)
- Cuicui Qi
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, 400716 Chongqing, China; Academy of Agricultural Sciences, Southwest University, 400716 Chongqing, China; State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, 400716 Chongqing, China
| | - Zhifeng Xu
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, 400716 Chongqing, China; Academy of Agricultural Sciences, Southwest University, 400716 Chongqing, China; State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, 400716 Chongqing, China
| | - Kun Qian
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, 400716 Chongqing, China; Academy of Agricultural Sciences, Southwest University, 400716 Chongqing, China; State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, 400716 Chongqing, China
| | - Guangmao Shen
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, 400716 Chongqing, China; Academy of Agricultural Sciences, Southwest University, 400716 Chongqing, China; State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, 400716 Chongqing, China
| | - Shuang Rong
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, 400716 Chongqing, China; Academy of Agricultural Sciences, Southwest University, 400716 Chongqing, China; State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, 400716 Chongqing, China
| | - Chenghao Zhang
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, 400716 Chongqing, China; Academy of Agricultural Sciences, Southwest University, 400716 Chongqing, China; State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, 400716 Chongqing, China
| | - Ping Zhang
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, 400716 Chongqing, China; Academy of Agricultural Sciences, Southwest University, 400716 Chongqing, China; State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, 400716 Chongqing, China
| | - Chuanxin Ma
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, Institute of Environmental and Ecological Engineering, Guangdong University of Technology, 510006, Guangdong, China.
| | - Youjun Zhang
- Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, 100081 Beijing, China.
| | - Lin He
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, 400716 Chongqing, China; Academy of Agricultural Sciences, Southwest University, 400716 Chongqing, China; State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, 400716 Chongqing, China.
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23
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Zhang X, Zhang Y, Jia R, Wang M, Yin Z, Cheng A. Structure and function of capsid protein in flavivirus infection and its applications in the development of vaccines and therapeutics. Vet Res 2021; 52:98. [PMID: 34193256 PMCID: PMC8247181 DOI: 10.1186/s13567-021-00966-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 05/27/2021] [Indexed: 01/03/2023] Open
Abstract
Flaviviruses are enveloped single positive-stranded RNA viruses. The capsid (C), a structural protein of flavivirus, is dimeric and alpha-helical, with several special structural and functional features. The functions of the C protein go far beyond a structural role in virions. It is not only responsible for encapsidation to protect the viral RNA but also able to interact with various host proteins to promote virus proliferation. Therefore, the C protein plays an important role in infected host cells and the viral life cycle. Flaviviruses have been shown to affect the health of humans and animals. Thus, there is an urgent need to effectively control flavivirus infections. The structure of the flavivirus virion has been determined, but there is relatively little information about the function of the C protein. Hence, a greater understanding of the role of the C protein in viral infections will help to discover novel antiviral strategies and provide a promising starting point for the further development of flavivirus vaccines or therapeutics.
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Affiliation(s)
- Xingcui Zhang
- Research Center of Avian Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China.,Institute of Preventive Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, 611130, Sichuan, China
| | - Yanting Zhang
- Research Center of Avian Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China.,Institute of Preventive Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, 611130, Sichuan, China
| | - Renyong Jia
- Research Center of Avian Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China. .,Institute of Preventive Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China. .,Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, 611130, Sichuan, China.
| | - Mingshu Wang
- Research Center of Avian Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China.,Institute of Preventive Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, 611130, Sichuan, China
| | - Zhongqiong Yin
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, 611130, Sichuan, China
| | - Anchun Cheng
- Research Center of Avian Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China. .,Institute of Preventive Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China. .,Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, 611130, Sichuan, China.
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Ojeda ML, Nogales F, Romero-Herrera I, Carreras O. Fetal Programming Is Deeply Related to Maternal Selenium Status and Oxidative Balance; Experimental Offspring Health Repercussions. Nutrients 2021; 13:nu13062085. [PMID: 34207090 PMCID: PMC8233903 DOI: 10.3390/nu13062085] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/08/2021] [Accepted: 06/15/2021] [Indexed: 12/12/2022] Open
Abstract
Nutrients consumed by mothers during pregnancy and lactation can exert permanent effects upon infant developing tissues, which could represent an important risk factor for diseases during adulthood. One of the important nutrients that contributes to regulating the cell cycle and tissue development and functionality is the trace element selenium (Se). Maternal Se requirements increase during gestation and lactation. Se performs its biological action by forming part of 25 selenoproteins, most of which have antioxidant properties, such as glutathione peroxidases (GPxs) and selenoprotein P (SELENOP). These are also related to endocrine regulation, appetite, growth and energy homeostasis. In experimental studies, it has been found that low dietary maternal Se supply leads to an important oxidative disruption in dams and in their progeny. This oxidative stress deeply affects gestational parameters, and leads to intrauterine growth retardation and abnormal development of tissues, which is related to endocrine metabolic imbalance. Childhood pathologies related to oxidative stress during pregnancy and/or lactation, leading to metabolic programing disorders like fetal alcohol spectrum disorders (FASD), have been associated with a low maternal Se status and intrauterine growth retardation. In this context, Se supplementation therapy to alcoholic dams avoids growth retardation, hepatic oxidation and improves gestational and breastfeeding parameters in FASD pups. This review is focused on the important role that Se plays during intrauterine and breastfeeding development, in order to highlight it as a marker and/or a nutritional strategy to avoid diverse fetal programming disorders related to oxidative stress.
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25
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Huang X, Dong YL, Li T, Xiong W, Zhang X, Wang PJ, Huang JQ. Dietary Selenium Regulates microRNAs in Metabolic Disease: Recent Progress. Nutrients 2021; 13:nu13051527. [PMID: 34062793 PMCID: PMC8147315 DOI: 10.3390/nu13051527] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 04/24/2021] [Accepted: 04/27/2021] [Indexed: 02/01/2023] Open
Abstract
Selenium (Se) is an essential element for the maintenance of a healthy physiological state. However, due to environmental and dietary factors and the narrow safety range of Se, diseases caused by Se deficiency or excess have gained considerable traction in recent years. In particular, links have been identified between low Se status, cognitive decline, immune disorders, and increased mortality, whereas excess Se increases metabolic risk. Considerable evidence has suggested microRNAs (miRNAs) regulate interactions between the environment (including the diet) and genes, and play important roles in several diseases, including cancer. MiRNAs target messenger RNAs to induce changes in proteins including selenoprotein expression, ultimately generating disease. While a plethora of data exists on the epigenetic regulation of other dietary factors, nutrient Se epigenetics and especially miRNA regulated mechanisms remain unclear. Thus, this review mainly focuses on Se metabolism, pathogenic mechanisms, and miRNAs as key regulatory factors in Se-related diseases. Finally, we attempt to clarify the regulatory mechanisms underpinning Se, miRNAs, selenoproteins, and Se-related diseases.
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Affiliation(s)
- Xin Huang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Nutrition and Health, China Agricultural University, Beijing 100083, China; (X.H.); (Y.-L.D.); (T.L.); (W.X.); (X.Z.); (P.-J.W.)
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, Ministry of Education, China Agricultural University, Beijing 100083, China
| | - Yu-Lan Dong
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Nutrition and Health, China Agricultural University, Beijing 100083, China; (X.H.); (Y.-L.D.); (T.L.); (W.X.); (X.Z.); (P.-J.W.)
- College of Veterinary Medicine, China Agricultural University, Beijing 100083, China
| | - Tong Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Nutrition and Health, China Agricultural University, Beijing 100083, China; (X.H.); (Y.-L.D.); (T.L.); (W.X.); (X.Z.); (P.-J.W.)
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, Ministry of Education, China Agricultural University, Beijing 100083, China
| | - Wei Xiong
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Nutrition and Health, China Agricultural University, Beijing 100083, China; (X.H.); (Y.-L.D.); (T.L.); (W.X.); (X.Z.); (P.-J.W.)
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, Ministry of Education, China Agricultural University, Beijing 100083, China
| | - Xu Zhang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Nutrition and Health, China Agricultural University, Beijing 100083, China; (X.H.); (Y.-L.D.); (T.L.); (W.X.); (X.Z.); (P.-J.W.)
| | - Peng-Jie Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Nutrition and Health, China Agricultural University, Beijing 100083, China; (X.H.); (Y.-L.D.); (T.L.); (W.X.); (X.Z.); (P.-J.W.)
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, Ministry of Education, China Agricultural University, Beijing 100083, China
| | - Jia-Qiang Huang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Nutrition and Health, China Agricultural University, Beijing 100083, China; (X.H.); (Y.-L.D.); (T.L.); (W.X.); (X.Z.); (P.-J.W.)
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, Ministry of Education, China Agricultural University, Beijing 100083, China
- Correspondence:
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A ten-gene methylation signature as a novel biomarker for improving prediction of prognosis and indicating gene targets in endometrial cancer. Genomics 2021; 113:2032-2044. [PMID: 33915245 DOI: 10.1016/j.ygeno.2021.04.035] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 03/10/2021] [Accepted: 04/23/2021] [Indexed: 12/17/2022]
Abstract
Endometrial cancer (EC) is a common female reproductive tumor worldwide. Nonetheless, the pathogenesis of EC still remains ambiguous and associated epigenetic mechanism still to be explored. The goal of this study is to investigate whether gene methylation signature is associated with overall survival (OS) for EC patients. In this study, a 10-gene methylation risk model was built and the OS in high- and low-risk groups was significant different. The area under the ROC curve (AUC) of this model was 0.856 at 5 years survival. The nomogram could accurately predict the OS in EC patients, with concordance index and AUC at 5 year survival reached 0.796 and 0.792, respectively. Furthermore, we verified the nomogram with 24 patients in our center and the Kaplan-Meier survival curve also proved to be significantly different (p < 0.01). WGCNA revealed a key gene group for the model and further bioinformatics analysis indicated 6 genes as the hub genes in the module. Knockdown of MMP12 inhibited the proliferation, invasion and metastasis of EC cells. After all, a methylation signature and a nomogram based on this signature were constructed, and they could both predict survival in patients with EC. Moreover, WGCNA model identified MMP12 as a potential target for the treatment of EC.
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Association between Oral Cancer and Diet: An Update. Nutrients 2021; 13:nu13041299. [PMID: 33920788 PMCID: PMC8071138 DOI: 10.3390/nu13041299] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 04/04/2021] [Accepted: 04/13/2021] [Indexed: 02/08/2023] Open
Abstract
Oral cancer, included within head and neck cancer, is the sixth most common malignant neoplasm in the world. The main etiological factors are tobacco and alcohol, although currently, diet is considered an important determinant for its development. Several dietary nutrients have specific mechanisms of action, contributing to both protection against cancer and increasing the risk for development, growth, and spread. Foods such as fruits, vegetables, curcumin, and green tea can reduce the risk of oral cancer, while the so-called pro-inflammatory diet, rich in red meat and fried foods, can enhance the risk of occurrence. Dietary factors with a protective effect show different mechanisms that complement and overlap with antioxidant, anti-inflammatory, anti-angiogenic, and anti-proliferative effects. The main limitation of in vivo studies is the complexity of isolating the effects related to each one of the nutrients and the relationship with other possible etiological mechanisms. On the contrary, in vitro studies allow determining the specific mechanisms of action of some of the dietary compounds. In conclusion, and despite research limitations, the beneficial effects of a diet rich in vegetables and fruits are attributed to different micronutrients that are also found in fish and animal products. These compounds show antioxidant, anti-inflammatory, anti-angiogenic, and anti-proliferative properties that have a preventive role in the development of oral and other types of cancer.
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Identification of crucial aberrantly methylated and differentially expressed genes related to cervical cancer using an integrated bioinformatics analysis. Biosci Rep 2021; 40:223801. [PMID: 32368784 PMCID: PMC7218222 DOI: 10.1042/bsr20194365] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 04/29/2020] [Accepted: 04/30/2020] [Indexed: 12/24/2022] Open
Abstract
Methylation functions in the pathogenesis of cervical cancer. In the present study, we applied an integrated bioinformatics analysis to identify the aberrantly methylated and differentially expressed genes (DEGS), and their related pathways in cervical cancer. Data of gene expression microarrays (GSE9750) and gene methylation microarrays (GSE46306) were gained from Gene Expression Omnibus (GEO) databases. Hub genes were identified by ‘limma’ packages and Venn diagram tool. Functional analysis was conducted by FunRich. Search Tool for the Retrieval of Interacting Genes Database (STRING) was used to analyze protein–protein interaction (PPI) information. Gene Expression Profiling Interactive Analysis (GEPIA), immunohistochemistry staining, and ROC curve analysis were conducted for validation. Gene Set Enrichment Analysis (GSEA) was also performed to identify potential functions.We retrieved two upregulated-hypomethylated oncogenes and eight downregulated-hypermethylated tumor suppressor genes (TSGs) for functional analysis. Hypomethylated and highly expressed genes (Hypo-HGs) were significantly enriched in cell cycle and autophagy, and hypermethylated and lowly expressed genes (Hyper-LGs) in estrogen receptor pathway and Wnt/β-catenin signaling pathway. Estrogen receptor 1 (ESR1), Erythrocyte membrane protein band 4.1 like 3 (EPB41L3), Endothelin receptor B (EDNRB), Inhibitor of DNA binding 4 (ID4) and placenta-specific 8 (PLAC8) were hub genes. Kaplan–Meier method was used to evaluate survival data of each identified gene. Lower expression levels of ESR1 and EPB41L3 were correlated with a shorter survival time. GSEA results showed that ‘cell adhesion molecules’ was the most enriched item. This research inferred the candidate genes and pathways that might be used in the diagnosis, treatment, and prognosis of cervical cancer.
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Liang ZZ, Zhu RM, Li YL, Jiang HM, Li RB, Wang Q, Tang LY, Ren ZF. Differential epigenetic profiles induced by sodium selenite in breast cancer cells. J Trace Elem Med Biol 2021; 64:126677. [PMID: 33246299 DOI: 10.1016/j.jtemb.2020.126677] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 10/28/2020] [Accepted: 11/05/2020] [Indexed: 12/16/2022]
Abstract
OBJECTIVES Selenium (Se) was a potential anticancer micronutrient with proposed epigenetic effect. However, the Se-induced epigenome in breast cancer cells was yet to be studied. METHODS The profiles of DNA methylation, microRNA (miRNA), long non-coding RNA (lncRNA), and message RNA (mRNA) in breast cancer cells treated with sodium selenite were examined by microarrays. We verified the epigenetic modifications by integrating their predicted target genes and differentially expressed mRNAs. The epigenetically regulated genes were further validated in a breast cancer cohort by associating with tumor progression. We conducted a series of bioinformatics analyses to assess the biological function of these validated genes and identified the critical genes. RESULTS The Se-induced epigenome regulated the expression of 959 genes, and 349 of them were further validated in the breast cancer cohort. Biological function analyses suggested that these validated genes were enriched in several cancer-related pathways, such as PI3K/Akt and metabolic pathways. Based on the degrees of expression change, hazard ratio difference, and connectivity, NEDD4L and FMO5 were identified as the critical genes. CONCLUSIONS These results confirmed the epigenetic effects of sodium selenite and revealed the epigenetic profiles in breast cancer cells, which would help understand the mechanisms of Se against breast cancer.
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Affiliation(s)
- Zhuo-Zhi Liang
- School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Rui-Mei Zhu
- School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Yue-Lin Li
- School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Hong-Mei Jiang
- School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Ruo-Bi Li
- School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Qing Wang
- School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Lu-Ying Tang
- The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China.
| | - Ze-Fang Ren
- School of Public Health, Sun Yat-sen University, Guangzhou 510080, China.
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Wang J, Liu Z, Zhang C, Wang H, Li A, Liu B, Lian X, Ren Z, Zhang W, Wang Y, Zhang B, Pang B, Gao Y. Abnormal expression of HOXD11 promotes the malignant behavior of glioma cells and leads to poor prognosis of glioma patients. PeerJ 2021; 9:e10820. [PMID: 33614284 PMCID: PMC7877241 DOI: 10.7717/peerj.10820] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 01/02/2021] [Indexed: 12/13/2022] Open
Abstract
Background Homeobox D11 (HOXD11) plays an important role in a variety of cancers, but its precise role in gliomas remains unclear. This study aimed to explore the relationship between HOXD11 and gliomas by combining bioinformatics methods with basic experimental validation. Materials and methods Obtain gene expression information and clinical information of glioma and non-tumor brain tissue samples from multiple public databases such as TCGA (666 glioma samples), CGGA (749 glioma samples), GEPIA(163 glioblastoma samples and 207 normal control samples), GEO (GSE4290 and GSE15824). Nine cases of glioma tissue and five cases of normal control brain tissue were collected from the clinical department of Henan Provincial People’s Hospital for further verification. A series of bioinformatic analysis methods were used to confirm the relationship between HOXD11 expression and overall survival and clinical molecular characteristics of patients with glioma. RT-qPCR was used to verify the change of expression level of HOXD11 in glioma cells and tissues. MTT assay, colony formation assay, wound-healing assay, immunofluorescence staining, flow cytometry and western blotting were used to detect the effect of HOXD11 on the biological behavior of glioma cell line U251. Results The high expression of HOXD11 was significantly related to age, World Health Organization (WHO) grade, chemotherapy status, histological type, and even 1p19q codeletion data and isocitrate dehydrogenase (IDH) mutation. HOXD11, as an independent risk factor, reduces the overall survival of glioma patients and has diagnostic value for the prognosis of glioma. Gene Set Enrichment Analysis (GSEA) showed that HOXD11 was significantly enriched in cell signaling pathway such as cell cycle, DNA replication and so on. Finally, we confirmed that the knockout of HOXD11 can inhibit the proliferation and invasion of U251 glioma cells, and change the biological behavior of tumor cells by preventing the progression of cell cycle. Conclusions HOXD11 may be used as a candidate biomarker for the clinical application of targeted drug and prognostic assessment treatment of glioma. In addition, This study will help to explore the pathological mechanism of glioma.
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Affiliation(s)
- Jialin Wang
- Zhengzhou University People's Hospital, Henan Provincial People's Hospital, Zhengzhou, Henan, China.,Department of Microbiome Laboratory, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China
| | - Zhendong Liu
- Department of Surgery of Spine and Spinal Cord, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, School of Clinical Medicine, Henan University, Zhengzhou, Henan, China
| | - Cheng Zhang
- North Broward Preparatory School, Nord Anglia Education, Coconut Creek, FL, United States of America
| | - Hongbo Wang
- Henan University People's Hospital, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Ang Li
- Department of Surgery of Spine and Spinal Cord, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, School of Clinical Medicine, Henan University, Zhengzhou, Henan, China
| | - Binfeng Liu
- Zhengzhou University People's Hospital, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Xiaoyu Lian
- Zhengzhou University People's Hospital, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Zhishuai Ren
- Zhengzhou University People's Hospital, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Wang Zhang
- Department of Neurosurgery of the First Affiliate Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Yanbiao Wang
- Zhengzhou University People's Hospital, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Bo Zhang
- Henan University People's Hospital, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Bo Pang
- Department of Neurosurgery, The Fourth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Yanzheng Gao
- Department of Surgery of Spine and Spinal Cord, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, School of Clinical Medicine, Henan University, Zhengzhou, Henan, China
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Cuenca-Micó O, Aceves C. Micronutrients and Breast Cancer Progression: A Systematic Review. Nutrients 2020; 12:nu12123613. [PMID: 33255538 PMCID: PMC7759972 DOI: 10.3390/nu12123613] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 11/20/2020] [Accepted: 11/23/2020] [Indexed: 12/11/2022] Open
Abstract
Epidemiological studies on micronutrient consumption have reported protective associations in the incidence and/or progression of various cancer types. Supplementation with some of these micronutrients has been analyzed, showing chemoprotection, low toxicity, antiproliferation, and the ability to modify epigenetic signatures in various cancer models. This review investigates the reported effects of micronutrient intake or supplementation in breast cancer progression. A PubMed search was conducted with the keywords "micronutrients breast cancer progression", and the results were analyzed. The selected micronutrients were vitamins (C, D, and E), folic acid, metals (Cu, Fe, Se, and Zn), fatty acids, polyphenols, and iodine. The majority of in vitro models showed antiproliferative, cell-cycle arrest, and antimetastatic effects for almost all the micronutrients analyzed, but these effects do not reflect animal or human studies. Only one clinical trial with vitamin D and one pilot study with molecular iodine showed favorable overall survival and disease-free interval.
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Jia Y, Dai J, Zeng Z. Potential relationship between the selenoproteome and cancer. Mol Clin Oncol 2020; 13:83. [PMID: 33133596 PMCID: PMC7590431 DOI: 10.3892/mco.2020.2153] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Accepted: 09/10/2020] [Indexed: 02/07/2023] Open
Abstract
The role of the selenoproteome, which is the collection of all proteins containing selenium in an organism, in cancer development, growth and progression requires further investigation, due to the importance of selenium in both cancer and immune system function. Data about the selenoproteome, including its differential expression, single nucleotide variations, copy number variations, methylation, pathways and overall survival (OS) in five leading types of cancer are available from the GSCALite website. Subsequent to the analysis of these datasets, it was revealed that there was increased expression of GPX3 in stomach adenocarcinoma and lung squamous cell carcinoma, SELENOV in oesophageal carcinoma, GPX8 and GPX4 in colon adenocarcinoma, TXNRD1 and SEPHS1 in hepatocellular carcinoma and GPX8 in lung adenocarcinoma were associated with poor survival. Decreased gene expression of SELENOP was indicated in liver hepatocellular carcinoma and GPX3, and SELENOW, SELENOK, SELENBP1 and SECISBP2 in lung adenocarcinoma were associated with a poor prognosis. OS data suggested that hypermethylation of GPX4 in colon adenocarcinoma, GPX8 in lung squamous cell carcinoma, GPX1 in stomach adenocarcinoma and GPX3 in lung adenocarcinoma was associated with low survival, as is hypomethylation of GPX5 in lung adenocarcinoma. The selenoproteome is heterogeneous, especially in its effect on the OS of patients with cancer. The present study demonstrated that the roles of GPX4 in colon adenocarcinoma, SCLY and SELENOV in oesophageal carcinoma, SEPHS1 in liver hepatocellular carcinoma, SELENOK in lung cancer, as well as SELENOM and SELENOW in stomach adenocarcinoma requires further research. The present study may lead to the identification of novel biomarkers or potential therapeutic targets for use in the treatment of cancers, such as colon adenocarcinoma, oesophageal carcinoma, liver hepatocellular carcinoma, lung cancer and stomach adenocarcinoma.
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Affiliation(s)
- Yi Jia
- Immune Cells and Antibody Engineering Research Center of Guizhou Province/Key Laboratory of Biology and Medical Engineering, Guizhou Medical University, Guiyang, Guizhou 550025, P.R. China.,School of Biology and Engineering, Guizhou Medical University, Guiyang, Guizhou 550025, P.R. China
| | - Jie Dai
- Immune Cells and Antibody Engineering Research Center of Guizhou Province/Key Laboratory of Biology and Medical Engineering, Guizhou Medical University, Guiyang, Guizhou 550025, P.R. China.,School of Biology and Engineering, Guizhou Medical University, Guiyang, Guizhou 550025, P.R. China
| | - Zhu Zeng
- School of Biology and Engineering, Guizhou Medical University, Guiyang, Guizhou 550025, P.R. China.,School of Basic Medical Science, Guizhou Medical University, Guiyang, Guizhou 550025, P.R. China
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33
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Li L, Li N, Liu N, Huo F, Zheng J. MBD2 Correlates with a Poor Prognosis and Tumor Progression in Renal Cell Carcinoma. Onco Targets Ther 2020; 13:10001-10012. [PMID: 33116585 PMCID: PMC7548338 DOI: 10.2147/ott.s256226] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 08/27/2020] [Indexed: 01/21/2023] Open
Abstract
Purpose DNA methylation plays an important role in regulating gene expression. Methyl-CpG-binding domain (MBD) proteins recognize and bind to methylated DNA, which mediate gene silencing by the interaction with deacetylases and histone methyltransferases. MBD2 has been reported in various human cancers; however, its clinical implication and potential regulatory role in renal cell carcinoma (RCC) have not been elaborated. Materials and Methods In the study, we estimated the expression and prognostic value of MBD2 in RCC cell lines and tissues by Western blotting and immunohistochemistry. The associations of MBD2 expression and pathological characters and survival in RCC patients were performed using χ2 and Kaplan-Meier survival analysis, respectively. Univariate and multivariable Cox regression analyses suggested the independent predictors in RCC prognosis. The functional role of MBD2 in RCC progression was assessed by in vitro cell experiments. In addition, we identified the MBD2-mediated alterations of protein-related proliferation and EMT markers in RCC cells after MBD2 overexpression and knockdown. Results We found that the protein levels of MBD2 were upregulated in RCC cells and tissues. High MBD2 expression was related to TNM stage and predicted poorer survival in RCC. Enforced expression of MBD2 significantly promoted the proliferation, cycle progress, invasion and migration of RCC cells in vitro. However, downregulating MBD2 remarkably weakened the above cell functions. Mechanistically, the promotive effect of MBD2 overexpression may be regulated by its effects onp21, p53 and Cyclin D1 expression and EMT process. Conclusion These results indicated that MBD2confers an oncogenic function in the malignant progression of RCC. MBD2 could be served as a meaningful prognostic biomarker and a latent therapeutic target in RCC patients.
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Affiliation(s)
- Liantao Li
- Cancer Institute, Xuzhou Medical University, Xuzhou 221000, People's Republic of China.,Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221000, People's Republic of China.,Department of Radiation Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221000, People's Republic of China.,Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Xuzhou 221000, People's Republic of China
| | - Na Li
- Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221000, People's Republic of China.,Department of Radiation Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221000, People's Republic of China
| | - Nianli Liu
- Cancer Institute, Xuzhou Medical University, Xuzhou 221000, People's Republic of China.,Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Xuzhou 221000, People's Republic of China
| | - Fuchun Huo
- Department of Pathology, Xuzhou Medical University, Xuzhou 221000, People's Republic of China
| | - Junnian Zheng
- Cancer Institute, Xuzhou Medical University, Xuzhou 221000, People's Republic of China.,Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221000, People's Republic of China
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Li P, Ning Y, Wang W, Guo X, Poulet B, Wang X, Wen Y, Han J, Hao J, Liang X, Liu L, Du Y, Cheng B, Cheng S, Zhang L, Ma M, Qi X, Liang C, Wu C, Wang S, Zhao H, Zhao G, Goldring MB, Zhang F, Xu P. The integrative analysis of DNA methylation and mRNA expression profiles confirmed the role of selenocompound metabolism pathway in Kashin-Beck disease. Cell Cycle 2020; 19:2351-2366. [PMID: 32816579 DOI: 10.1080/15384101.2020.1807665] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
Kashin-Beck disease (KBD) is an endemic chronic osteochondropathy. The etiology of KBD remains unknown. In this study, we conducted an integrative analysis of genome-wide DNA methylation and mRNA expression profiles between KBD and normal controls to identify novel candidate genes and pathways for KBD. Articular cartilage samples from 17 grade III KBD patients and 17 healthy controls were used in this study. DNA methylation profiling of knee cartilage and mRNA expression profile data were obtained from our previous studies. InCroMAP was performed to integrative analysis of genome-wide DNA methylation profiles and mRNA expression profiles. Gene ontology (GO) enrichment analysis was conducted by online DAVID 6.7. The quantitative real-time polymerase chain reaction (qPCR), Western blot, immunohistochemistry (IHC), and lentiviral vector transfection were used to validate one of the identified pathways. We identified 298 common genes (such as COL4A1, HOXA13, TNFAIP6 and TGFBI), 36 GO terms (including collagen function, skeletal system development, growth factor), and 32 KEGG pathways associated with KBD (including Selenocompound metabolism pathway, PI3K-Akt signaling pathway, and TGF-beta signaling pathway). Our results suggest the dysfunction of many genes and pathways implicated in the pathogenesis of KBD, most importantly, both the integrative analysis and in vitro study in KBD cartilage highlighted the importance of selenocompound metabolism pathway in the pathogenesis of KBD for the first time.
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Affiliation(s)
- Ping Li
- Key Laboratory of Trace Elements and Endemic Diseases, National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University , Xi'an, China
| | - Yujie Ning
- Key Laboratory of Trace Elements and Endemic Diseases, National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University , Xi'an, China
| | - Weizhuo Wang
- Department of Orthopedics, the Second Affiliated Hospital, Health Science Center, Xi'an Jiaotong University , Xi'an, China
| | - Xiong Guo
- Key Laboratory of Trace Elements and Endemic Diseases, National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University , Xi'an, China
| | - Blandine Poulet
- Institute of Ageing and Chronic Diseases, University of Liverpool , Liverpool, UK
| | - Xi Wang
- Key Laboratory of Trace Elements and Endemic Diseases, National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University , Xi'an, China
| | - Yan Wen
- Key Laboratory of Trace Elements and Endemic Diseases, National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University , Xi'an, China
| | - Jing Han
- Key Laboratory of Trace Elements and Endemic Diseases, National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University , Xi'an, China
| | - Jingcan Hao
- Cancer Center, The First Affiliated Hospital of Xi'an Jiaotong University , Xi'an, China
| | - Xiao Liang
- Key Laboratory of Trace Elements and Endemic Diseases, National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University , Xi'an, China
| | - Li Liu
- Key Laboratory of Trace Elements and Endemic Diseases, National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University , Xi'an, China
| | - Yanan Du
- Key Laboratory of Trace Elements and Endemic Diseases, National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University , Xi'an, China
| | - Bolun Cheng
- Key Laboratory of Trace Elements and Endemic Diseases, National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University , Xi'an, China
| | - Shiqiang Cheng
- Key Laboratory of Trace Elements and Endemic Diseases, National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University , Xi'an, China
| | - Lu Zhang
- Key Laboratory of Trace Elements and Endemic Diseases, National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University , Xi'an, China
| | - Mei Ma
- Key Laboratory of Trace Elements and Endemic Diseases, National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University , Xi'an, China
| | - Xin Qi
- Key Laboratory of Trace Elements and Endemic Diseases, National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University , Xi'an, China
| | - Chujun Liang
- Key Laboratory of Trace Elements and Endemic Diseases, National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University , Xi'an, China
| | - Cuiyan Wu
- Key Laboratory of Trace Elements and Endemic Diseases, National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University , Xi'an, China
| | - Sen Wang
- Key Laboratory of Trace Elements and Endemic Diseases, National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University , Xi'an, China
| | - Hongmou Zhao
- Department of Joint Surgery, The Red Cross Hospital of Xi'an Jiaotong University , Xi'an, China
| | - Guanghui Zhao
- Department of Joint Surgery, The Red Cross Hospital of Xi'an Jiaotong University , Xi'an, China
| | - Mary B Goldring
- Hospital for Special Surgery, Weill College of Medicine of Cornell University , New York, NY, USA
| | - Feng Zhang
- Key Laboratory of Trace Elements and Endemic Diseases, National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University , Xi'an, China
| | - Peng Xu
- Department of Joint Surgery, The Red Cross Hospital of Xi'an Jiaotong University , Xi'an, China
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Parental Selenium Nutrition Affects the One-Carbon Metabolism and the Hepatic DNA Methylation Pattern of Rainbow Trout ( Oncorhynchus mykiss) in the Progeny. Life (Basel) 2020; 10:life10080121. [PMID: 32722369 PMCID: PMC7459646 DOI: 10.3390/life10080121] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 07/20/2020] [Accepted: 07/23/2020] [Indexed: 02/06/2023] Open
Abstract
Selenium is an essential micronutrient and its metabolism is closely linked to the methionine cycle and transsulfuration pathway. The present study evaluated the effect of two different selenium supplements in the diet of rainbow trout (Onchorhynchus mykiss) broodstock on the one-carbon metabolism and the hepatic DNA methylation pattern in the progeny. Offspring of three parental groups of rainbow trout, fed either a control diet (NC, basal Se level: 0.3 mg/kg) or a diet supplemented with sodium selenite (SS, 0.8 mg Se/kg) or hydroxy-selenomethionine (SO, 0.7 mg Se/kg), were collected at swim-up fry stage. Our findings suggest that parental selenium nutrition impacted the methionine cycle with lower free methionine and S-adenosylmethionine (SAM) and higher methionine synthase (mtr) mRNA levels in both selenium-supplemented treatments. DNA methylation profiling by reduced representation bisulfite sequencing (RRBS) identified differentially methylated cytosines (DMCs) in offspring livers. These DMCs were related to 6535 differentially methylated genes in SS:NC, 6890 in SO:NC and 7428 in SO:SS, respectively. Genes with the highest methylation difference relate, among others, to the neuronal or signal transmitting and immune system which represent potential targets for future studies.
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36
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The inflammatory potential of Argentinian diet and oral squamous cell carcinoma. NUTR HOSP 2020; 36:1361-1367. [PMID: 31516012 DOI: 10.20960/nh.02613] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
Introduction Introduction: the goal of this study was to evaluate whether an association exists between dietary components related to inflammation and oral squamous cell carcinoma (OSCC) in Argentina. Methods: a case-control study was carried out with 3 controls for each case and participants of both genders who were between 24 and 85 years of age, who were recruited at the outpatient clinic, Odontology School, Universidad Nacional de Córdoba, between 2012 and 2015. Dietary information was collected using a semi-quantitative food frequency questionnaire from which energy-adjusted Dietary Inflammatory Index (E-DIITM) scores were computed. Logistic regression models were fit to assess the association between E-DII and OSCC. Results: significantly higher intakes of macronutrients such as fat, protein and cholesterol, and of micronutrients such as iron, riboflavin, monounsaturated, polyunsaturated, omega-6 and omega-3 fatty acids, and vitamin B6 were observed in cases as compared to controls (all p < 0.05). We also observed a significant 69% increase in OSCC for each point on the E-DII scale (OR 1.69, 95% CI [1.18-2.43]) after adjusting for alcohol and tobacco consumption. Conclusion: we found an association between diet-associated inflammation, as represented by the E-DII, and risk of OSCC. Future research should be directed at deepening our understanding of this association in other populations, and should include studies utilizing prospective designs.
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Berry T, Abohamza E, Moustafa AA. A disease-modifying treatment for Alzheimer's disease: focus on the trans-sulfuration pathway. Rev Neurosci 2020; 31:319-334. [PMID: 31751299 DOI: 10.1515/revneuro-2019-0076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 08/31/2019] [Indexed: 12/16/2022]
Abstract
High homocysteine levels in Alzheimer's disease (AD) result from low activity of the trans-sulfuration pathway. Glutathione levels are also low in AD. L-cysteine is required for the synthesis of glutathione. The synthesis of coenzyme A (CoA) requires L-cysteine, which is synthesized via the trans-sulfuration pathway. CoA is required for the synthesis of acetylcholine and appropriate cholinergic neurotransmission. L-cysteine is required for the synthesis of molybdenum-containing proteins. Sulfite oxidase (SUOX), which is a molybdenum-containing protein, could be dysregulated in AD. SUOX detoxifies the sulfites. Glutaminergic neurotransmission could be dysregulated in AD due to low levels of SUOX and high levels of sulfites. L-cysteine provides sulfur for iron-sulfur clusters. Oxidative phosphorylation (OXPHOS) is heavily dependent on iron-sulfur proteins. The decrease in OXPHOS seen in AD could be due to dysregulations of the trans-sulfuration pathway. There is a decrease in aconitase 1 (ACO1) in AD. ACO1 is an iron-sulfur enzyme in the citric acid cycle that upon loss of an iron-sulfur cluster converts to iron regulatory protein 1 (IRP1). With the dysregulation of iron-sulfur cluster formation ACO1 will convert to IRP1 which will decrease the 2-oxglutarate synthesis dysregulating the citric acid cycle and also dysregulating iron metabolism. Selenomethionine is also metabolized by the trans-sulfuration pathway. With the low activity of the trans-sulfuration pathway in AD selenoproteins will be dysregulated in AD. Dysregulation of selenoproteins could lead to oxidant stress in AD. In this article, we propose a novel treatment for AD that addresses dysregulations resulting from low activity of the trans-sulfuration pathway and low L-cysteine.
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Affiliation(s)
- Thomas Berry
- School of Social Sciences and Psychology, Western Sydney University, 2 Bullecourt Ave, Milperra, 2214 Sydney, New South Wales, Australia
| | - Eid Abohamza
- Department of Social Sciences, College of Arts and Sciences, Qatar University, Doha, Qatar
| | - Ahmed A Moustafa
- School of Social Sciences and Psychology, Western Sydney University, 2 Bullecourt Ave, Milperra, 2214 Sydney, New South Wales, Australia
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Tian FY, Everson TM, Lester B, Punshon T, Jackson BP, Hao K, Lesseur C, Chen J, Karagas MR, Marsit CJ. Selenium-associated DNA methylation modifications in placenta and neurobehavioral development of newborns: An epigenome-wide study of two U.S. birth cohorts. ENVIRONMENT INTERNATIONAL 2020; 137:105508. [PMID: 32007686 PMCID: PMC7722519 DOI: 10.1016/j.envint.2020.105508] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 12/05/2019] [Accepted: 01/17/2020] [Indexed: 05/02/2023]
Abstract
BACKGROUND/AIM Selenium (Se) levels in pregnancy have been linked to neurobehavioral development of the offspring. DNA methylation is a potential mechanism underlying the impacts of environmental exposures on fetal development; however, very few studies have been done elucidating the role of DNA methylation linking prenatal Se and child neurobehavior. We aimed to investigate the associations between placental Se concentration and epigenome-wide DNA methylation in two U.S. cohorts, and to assess the association between Se-related DNA methylation modifications and newborns' neurobehavior. METHODS We measured placental Se concentrations in 343 newborns enrolled in the New Hampshire Birth Cohort Study and in 141 newborns in the Rhode Island Child Health Study. Genome-wide placental DNA methylation was measured by HumanMethylation450 BeadChip, and newborn neurobehavioral development was assessed by the NICU Network Neurobehavioral Scales (NNNS). We meta-analyzed the associations between placental Se concentration and DNA methylation in each cohort, adjusting for covariates. We also fit multiple linear regression and ordinal logistic regression for methylation and newborn NNNS summary scores. RESULTS We identified five Se-related differentially methylated CpG sites. Among them was cg09674502 (GFI1), where selenium concentration was positively associated with methylation (β-coefficient = 1.11, FDR-adjusted p-value = 0.045), and where we observed that a one percent methylation level increase was associated with a 15% reduced odds of higher muscle tone in the arms, legs and trunk of newborns, (OR [95% Confidence Interval, CI] = 0.85 [0.77, 0.95]). We also observed for each interquartile range (IQR) increase in selenium concentration in the placenta, there was 1.76 times greater odds of higher hypotonicity (OR [95% CI] = 1.76 [1.12, 2.82]). CONCLUSIONS Placental selenium concentration was inversely associated with muscle tone of newborns, and hypermethylation of GFI1 could be a potential mechanism underlying this association.
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Affiliation(s)
- Fu-Ying Tian
- Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Todd M Everson
- Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Barry Lester
- Brown Center for the Study of Children at Risk, Women and Infants Hospital, Warren Alpert School of Medicine of Brown University, Providence, RI, USA
| | - Tracy Punshon
- Department of Biological Sciences, Dartmouth College, Hanover, NH, USA
| | - Brian P Jackson
- Department of Earth Sciences, Dartmouth College, Hanover, NH, USA
| | - Ke Hao
- Department of Genetics and Genome Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Corina Lesseur
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Jia Chen
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Margaret R Karagas
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, NH, USA; Children's Environmental Health and Disease Prevention Research Center at Dartmouth, Dartmouth College, Lebanon, NH, USA
| | - Carmen J Marsit
- Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA; Children's Environmental Health and Disease Prevention Research Center at Dartmouth, Dartmouth College, Lebanon, NH, USA.
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Liu J, Wan Y, Li S, Qiu H, Jiang Y, Ma X, Zhou S, Cheng W. Identification of aberrantly methylated differentially expressed genes and associated pathways in endometrial cancer using integrated bioinformatic analysis. Cancer Med 2020; 9:3522-3536. [PMID: 32170852 PMCID: PMC7221444 DOI: 10.1002/cam4.2956] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 01/21/2020] [Accepted: 02/19/2020] [Indexed: 12/14/2022] Open
Abstract
Endometrial cancer (EC) is a fatal female reproductive tumor. Bioinformatic tools are increasingly developed to screen out molecular targets related to EC. In this study, http://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE17025 and http://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE40032 were obtained from Gene Expression Omnibus (GEO). “limma” package and Venn diagram tool were used to identify hub genes. FunRich was used for functional analysis. Retrieval of Interacting Genes Database (STRING) was used to analyze protein‐protein interaction (PPI) complex. Cancer Genome Atlas (TCGA), GEPIA, immunohistochemistry staining, and ROC curve analysis were carried out for validation. Univariate and multivariate regression analyses were performed to predict the risk score. Compound muscle action potential (CMap) was used to find potential drugs. GSEA was also done. We retrieved seven oncogenes which were upregulated and hypomethylated and 12 tumor suppressor genes (TSGs) which were downregulated and hypermethylated. The upregulated and hypomethylated genes were strikingly enriched in term “immune response” while the downregulated and hypermethylated genes were mainly focused on term “aromatic compound catabolic process.” TCGA and GEPIA were used to screen out EDNRB, CDO1, NDN, PLCD1, ROR2, ESPL1, PRAME, and PTTG1. Among them, ESPL1 and ROR2 were identified by Cox regression analysis and were used to construct prognostic risk model. The result showed that ESPL1 was a negative independent prognostic factor. Cmap identified aminoglutethimide, luteolin, sulfadimethoxine, and maprotiline had correlation with EC. GSEA results showed that “hedgehog signaling pathway” was enriched. This research inferred potential aberrantly methylated DEGs and dysregulated pathways may participate in EC development and firstly reported eight hub genes, including EDNRB, CDO1, NDN, PLCD1, ROR2, ESPL1, PRAME, and PTTG1 that could be used to predict EC prognosis. Aminoglutethimide and luteolin may be used to fight against EC.
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Affiliation(s)
- JinHui Liu
- Department of Gynecology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - YiCong Wan
- Department of Gynecology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Siyue Li
- Department of Gynecology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - HuaiDe Qiu
- Center of Rehabilitation Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yi Jiang
- Department of Gynecology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Xiaoling Ma
- Department of Gynecology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - ShuLin Zhou
- Department of Gynecology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - WenJun Cheng
- Department of Gynecology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
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Beetch M, Harandi-Zadeh S, Shen K, Lubecka K, Kitts DD, O'Hagan HM, Stefanska B. Dietary antioxidants remodel DNA methylation patterns in chronic disease. Br J Pharmacol 2019; 177:1382-1408. [PMID: 31626338 DOI: 10.1111/bph.14888] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 09/19/2019] [Accepted: 09/23/2019] [Indexed: 12/14/2022] Open
Abstract
Chronic diseases account for over 60% of all deaths worldwide according to the World Health Organization reports. Majority of cases are triggered by environmental exposures that lead to aberrant changes in the epigenome, specifically, the DNA methylation patterns. These changes result in altered expression of gene networks and activity of signalling pathways. Dietary antioxidants, including catechins, flavonoids, anthocyanins, stilbenes and carotenoids, demonstrate benefits in the prevention and/or support of therapy in chronic diseases. This review provides a comprehensive discussion of potential epigenetic mechanisms of antioxidant compounds in reversing altered patterns of DNA methylation in chronic disease. Antioxidants remodel the DNA methylation patterns through multiple mechanisms, including regulation of epigenetic enzymes and chromatin remodelling complexes. These effects can further contribute to antioxidant properties of the compounds. On the other hand, decrease in oxidative stress itself can impact DNA methylation delivering additional link between antioxidant mechanisms and epigenetic effects of the compounds. LINKED ARTICLES: This article is part of a themed section on The Pharmacology of Nutraceuticals. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v177.6/issuetoc.
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Affiliation(s)
- Megan Beetch
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, The University of British Columbia, Vancouver, BC, Canada
| | - Sadaf Harandi-Zadeh
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, The University of British Columbia, Vancouver, BC, Canada
| | - Kate Shen
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, The University of British Columbia, Vancouver, BC, Canada
| | - Katarzyna Lubecka
- Department of Biomedical Chemistry, Medical University of Lodz, Lodz, Poland
| | - David D Kitts
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, The University of British Columbia, Vancouver, BC, Canada
| | - Heather M O'Hagan
- Cell, Molecular and Cancer Biology, Medical Sciences, Indiana University School of Medicine, Bloomington, Indiana, USA
| | - Barbara Stefanska
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, The University of British Columbia, Vancouver, BC, Canada
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Wang Y, Qin N, Zhao C, Yuan J, Lu S, Li W, Xiang H, Hao H. The correlation between the methylation of PTEN gene and the apoptosis of osteosarcoma cells mediated by SeHA nanoparticles. Colloids Surf B Biointerfaces 2019; 184:110499. [PMID: 31541893 DOI: 10.1016/j.colsurfb.2019.110499] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 09/06/2019] [Accepted: 09/09/2019] [Indexed: 12/11/2022]
Abstract
The invasive spreading of residual osteosarcoma cells becomes a serious threat to human health, urgently needing new bone regenerative biomaterials for orthopedic therapy. Thus, in this work, selenite-substituted hydroxyapatite (SeHA) nanoparticles were prepared for both inhibiting the recurrence of the tumor and accelerating the regenerative repair of bone defect. Physicochemical characterization showed these synthetic nanoparticles were spherical poly-crystals with the shape of snowflakes. Such structure benefited them to inhibit the cellular viability of osteosarcoma cells by about (58.90 ± 14.37)% during 24 h co-culturing. The expression level of cell growth-related genes such as PTEN, MMP-9, Cyclin D1, Cyclin A2, Annexin A2 and CDC2 decreased. Bisulfite Sequence PCR of PTEN gene exhibited about (22.40 ± 5.39)%, (45.91 ± 6.36)% and (25.90 ± 5.36)% promoter methylation in control, HA and SeHA group. Animal experiment also proved the similar effects. Almost no recurrence were observed in SeHA group. Oppositely, the slowly recurrent growth of the remnant tumor appeared in purely surgical group. The overall survival and toxicity analysis showed that, in the usage dose of 0-0.1 g, the SeHA-0.01 exhibited higher inhibitory recurrence and metastasis potentials, lower renal toxicity and better anti-inflammation function. Immunohistochemistry stain showed the reduced expression of PTEN, MMP-9, Ki-67 and Annexin A2, but slightly increased expression of DNMT1 and BMP-2. Compared the methylation status of PTEN gene in each group, it was confirming that SeHA nanoparticles hardly possessed the de-methylation effect, but the pure HA strikingly increased the methylation level of such gene. It seemed the dopant selenite ions possessed de-methylation effect onto PTEN gene. Therefore, from the viewpoint of inhibiting metastatic potentials, the SeHA-0.01 might be a feasible biomaterial to inhibit the relapse of the tumor post-surgery.
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Affiliation(s)
- Yanhua Wang
- Department of Morphology, Medical Science College of China Three Gorges University, Yichang, China.
| | - Na Qin
- Department of Morphology, Medical Science College of China Three Gorges University, Yichang, China
| | - Caifa Zhao
- Department of Morphology, Medical Science College of China Three Gorges University, Yichang, China
| | - Jiehua Yuan
- Department of Morphology, Medical Science College of China Three Gorges University, Yichang, China
| | - Shiqi Lu
- Department of Morphology, Medical Science College of China Three Gorges University, Yichang, China
| | - Wenjing Li
- Department of Morphology, Medical Science College of China Three Gorges University, Yichang, China
| | - Huiyao Xiang
- The First College of Clinical Medical Science, China Three Gorges University, Yichang Central People's Hospital, Yichang, China
| | - Hang Hao
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, China
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Zhang Q, Zheng S, Wang S, Jiang Z, Xu S. The Effects of Low Selenium on DNA Methylation in the Tissues of Chickens. Biol Trace Elem Res 2019; 191:474-484. [PMID: 30737629 DOI: 10.1007/s12011-019-1630-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Accepted: 01/01/2019] [Indexed: 12/12/2022]
Abstract
DNA methylation is involved in epigenetic mechanisms associated with gene suppression, and its abnormalities lead to gene instability and disease development. As an essential trace element in humans and animals, selenium (Se) is also associated with abnormal changes in DNA methylation. However, the effect of low Se on DNA methylation in avian tissues has not been reported. In the current study, chickens were fed a low-Se diet (0.033 mg Se/kg) or supplemented with 0.15 mg Se/kg as selenite for up to 55 days. DNA methylation levels were examined by high-performance liquid chromatography (HPLC). DNA methyltransferases (DNMTs) and methyl-DpG-binding domain protein 2 (MBD2) mRNA levels were examined through the applications of RT-PCR. The experiment aims to explore the relationship between low Se and DNA methylation. The results showed that total DNA methylation levels in the muscle tissues, brain, immune tissues, and liver of the low-selenium diet group were decreased compared with the control group. The degree of DNA methylation reduction in different tissues from largest to smallest was liver > cerebellum > thymus > brain > spleen ≥ leg muscles > pectoral muscles > bursa of Fabricius > thalamus > wing muscles. DNMT1, DNMT3A, and DNMT3B mRNA expression levels of the low-selenium diet group were decreased compared with those in the control group. The mRNA expression of the MBD2 gene was increased. The results indicate that low Se can reduce the DNA methylation levels of tissues, especially within the liver. These conclusions provide a basis for exploring the pathogenesis of selenium deficiency from the perspective of DNA methylation and create a new basis for comparative medicine.
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Affiliation(s)
- Qiaojian Zhang
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin, 150030, People's Republic of China
| | - Shufang Zheng
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin, 150030, People's Republic of China
| | - Shengchen Wang
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin, 150030, People's Republic of China
| | - Zhihui Jiang
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin, 150030, People's Republic of China.
| | - Shiwen Xu
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin, 150030, People's Republic of China.
- Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China.
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43
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Zhang H, Dong S, Feng J. Epigenetic profiling and mRNA expression reveal candidate genes as biomarkers for colorectal cancer. J Cell Biochem 2019; 120:10767-10776. [PMID: 30672027 DOI: 10.1002/jcb.28368] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 11/29/2018] [Indexed: 12/31/2022]
Affiliation(s)
- Hui Zhang
- Department of Medical Oncology The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research Nanjing Jiangsu People's Republic of China
| | - Shuchen Dong
- Department of Medical Oncology The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research Nanjing Jiangsu People's Republic of China
| | - Jifeng Feng
- Department of Medical Oncology The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research Nanjing Jiangsu People's Republic of China
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Tan HW, Mo HY, Lau ATY, Xu YM. Selenium Species: Current Status and Potentials in Cancer Prevention and Therapy. Int J Mol Sci 2018; 20:ijms20010075. [PMID: 30585189 PMCID: PMC6337524 DOI: 10.3390/ijms20010075] [Citation(s) in RCA: 108] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 12/10/2018] [Accepted: 12/20/2018] [Indexed: 02/05/2023] Open
Abstract
Selenium (Se) acts as an essential trace element in the human body due to its unique biological functions, particularly in the oxidation-reduction system. Although several clinical trials indicated no significant benefit of Se in preventing cancer, researchers reported that some Se species exhibit superior anticancer properties. Therefore, a reassessment of the status of Se and Se compounds is necessary in order to provide clearer insights into the potentiality of Se in cancer prevention and therapy. In this review, we organize relevant forms of Se species based on the three main categories of Se-inorganic, organic, and Se-containing nanoparticles (SeNPs)-and overview their potential functions and applications in oncology. Here, we specifically focus on the SeNPs as they have tremendous potential in oncology and other fields. In general, to make better use of Se compounds in cancer prevention and therapy, extensive further study is still required to understand the underlying mechanisms of the Se compounds.
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Affiliation(s)
- Heng Wee Tan
- Laboratory of Cancer Biology and Epigenetics, Department of Cell Biology and Genetics, Shantou University Medical College, Shantou 515041, China.
| | - Hai-Ying Mo
- Laboratory of Cancer Biology and Epigenetics, Department of Cell Biology and Genetics, Shantou University Medical College, Shantou 515041, China.
| | - Andy T Y Lau
- Laboratory of Cancer Biology and Epigenetics, Department of Cell Biology and Genetics, Shantou University Medical College, Shantou 515041, China.
| | - Yan-Ming Xu
- Laboratory of Cancer Biology and Epigenetics, Department of Cell Biology and Genetics, Shantou University Medical College, Shantou 515041, China.
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Addressing the Nutritional Phenotype Through Personalized Nutrition for Chronic Disease Prevention and Management. Prog Cardiovasc Dis 2018; 62:9-14. [PMID: 30553801 DOI: 10.1016/j.pcad.2018.12.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 12/12/2018] [Indexed: 01/01/2023]
Abstract
The primary focus of public health recommendations related to the prevention of food-related chronic disease has been on the adoption of healthy dietary patterns; however, implementation has been challenging. There has been increasing recognition that an individual's diet and environment may impact disease susceptibility by affecting the expression of genes involved in critical metabolic pathways. Precision nutrition (PN) has emerged to translate discoveries about diversity in nutrient metabolism between subgroups and the inter-individual variability in the responses to dietary interventions. The overarching goals of PN are to deliver individualized, actionable dietary therapy based on an individual's nutritional phenotype, created from the integration of genetics, metabolic profile, and environmental factors in order to prevent and treat chronic disease. This review addresses the developments of genome- and omic-driven PN and how they have been used to prevent and treat disease, as well as how they might be integrated into broader clinical practice.
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Di Nunzio M, Bordoni A, Aureli F, Cubadda F, Gianotti A. Sourdough Fermentation Favorably Influences Selenium Biotransformation and the Biological Effects of Flatbread. Nutrients 2018; 10:nu10121898. [PMID: 30513976 PMCID: PMC6316522 DOI: 10.3390/nu10121898] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 11/26/2018] [Accepted: 11/28/2018] [Indexed: 01/04/2023] Open
Abstract
Although selenium is of great importance for the human body, in several world regions the intake of this essential trace element does not meet the dietary reference values. To achieve optimal intake, fortification of bread by using selenium-enriched flour has been put forward. Less is known on the potential effect of sourdough fermentation, which might be worth exploring as the biological effects of selenium strongly depend on its chemical form and sourdough fermentation is known to cause transformations of nutrients and phytochemicals, including the conversion of inorganic selenium into organic selenocompounds. Here we investigated the bio transformation of selenium by sourdough fermentation in a typical Italian flatbread (piadina) made with standard (control) or selenium-enriched flour. The different piadina were submitted to in vitro digestion, and the biological activity of the resulting hydrolysates was tested by means of cultured human liver cells exposed to an exogenous oxidative stress. The use of selenium-enriched flour and sourdough fermentation increased the total content of bioaccessible selenium in organic form, compared to conventional fermentation, and led to protective effects counteracting oxidative damage in cultured cells. The present study suggests that selenium-rich, sourdough-fermented bakery products show promise for improving human selenium nutrition whenever necessary.
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Affiliation(s)
- Mattia Di Nunzio
- Department of Agri-Food Sciences and Technologies (DISTAL), University of Bologna, Piazza Goidanich 60, 47521 Cesena, Italy.
| | - Alessandra Bordoni
- Department of Agri-Food Sciences and Technologies (DISTAL), University of Bologna, Piazza Goidanich 60, 47521 Cesena, Italy.
| | - Federica Aureli
- Department of Food Safety, Nutrition, and Veterinary Public Health, Istituto Superiore di Sanità-Italian National Institute of Health, Viale Regina Elena 299, 00161 Rome, Italy.
| | - Francesco Cubadda
- Department of Food Safety, Nutrition, and Veterinary Public Health, Istituto Superiore di Sanità-Italian National Institute of Health, Viale Regina Elena 299, 00161 Rome, Italy.
| | - Andrea Gianotti
- Department of Agri-Food Sciences and Technologies (DISTAL), University of Bologna, Piazza Goidanich 60, 47521 Cesena, Italy.
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Constantinescu-Aruxandei D, Frîncu RM, Capră L, Oancea F. Selenium Analysis and Speciation in Dietary Supplements Based on Next-Generation Selenium Ingredients. Nutrients 2018; 10:E1466. [PMID: 30304813 PMCID: PMC6213372 DOI: 10.3390/nu10101466] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 10/02/2018] [Accepted: 10/03/2018] [Indexed: 12/27/2022] Open
Abstract
Selenium is essential for humans and the deficit of Se requires supplementation. In addition to traditional forms such as Se salts, amino acids, or selenium-enriched yeast supplements, next-generation selenium supplements, with lower risk for excess supplementation, are emerging. These are based on selenium forms with lower toxicity, higher bioavailability, and controlled release, such as zerovalent selenium nanoparticles (SeNPs) and selenized polysaccharides (SPs). This article aims to focus on the existing analytical systems for the next-generation Se dietary supplement, providing, at the same time, an overview of the analytical methods available for the traditional forms. The next-generation dietary supplements are evaluated in comparison with the conventional/traditional ones, as well as the analysis and speciation methods that are suitable to reveal which Se forms and species are present in a dietary supplement. Knowledge gaps and further research potential in this field are highlighted. The review indicates that the methods of analysis of next-generation selenium supplements should include a step related to chemical species separation. Such a step would allow a proper characterization of the selenium forms/species, including molecular mass/dimension, and substantiates the marketing claims related to the main advantages of these new selenium ingredients.
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Affiliation(s)
- Diana Constantinescu-Aruxandei
- National Research & Development Institute for Chemistry and Petrochemistry ICECHIM, 202 Splaiul Independentei, 060021 Bucharest, Romania.
| | - Rodica Mihaela Frîncu
- INCDCP-ICECHIM Calarasi Subsidiary, 7A Nicolae Titulescu St., 915300 Lehliu Gara, Romania.
| | - Luiza Capră
- National Research & Development Institute for Chemistry and Petrochemistry ICECHIM, 202 Splaiul Independentei, 060021 Bucharest, Romania.
| | - Florin Oancea
- National Research & Development Institute for Chemistry and Petrochemistry ICECHIM, 202 Splaiul Independentei, 060021 Bucharest, Romania.
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Prophylactic Zinc and Therapeutic Selenium Administration Increases the Antioxidant Enzyme Activity in the Rat Temporoparietal Cortex and Improves Memory after a Transient Hypoxia-Ischemia. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:9416432. [PMID: 30258527 PMCID: PMC6146673 DOI: 10.1155/2018/9416432] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 07/31/2018] [Indexed: 11/17/2022]
Abstract
In the cerebral hypoxia-ischemia rat model, the prophylactic administration of zinc can cause either cytotoxicity or preconditioning effect, whereas the therapeutic administration of selenium decreases the ischemic damage. Herein, we aimed to explore whether supplementation of low doses of prophylactic zinc and therapeutic selenium could protect from a transient hypoxic-ischemic event. We administrated zinc (0.2 mg/kg of body weight; ip) daily for 14 days before a 10 min common carotid artery occlusion (CCAO). After CCAO, we administrated sodium selenite (6 μg/kg of body weight; ip) daily for 7 days. In the temporoparietal cerebral cortex, we determined nitrites by the Griess method and lipid peroxidation by the Gerard-Monnier assay. qPCR was used to measure mRNA of nitric oxide synthases, antioxidant enzymes, chemokines, and their receptors. We measured the enzymatic activity of SOD and GPx and protein levels of chemokines and their receptors by ELISA. We evaluated long-term memory using the Morris-Water maze test. Our results showed that prophylactic administration of zinc caused a preconditioning effect, decreasing nitrosative/oxidative stress and increasing GPx and SOD expression and activity, as well as eNOS expression. The therapeutic administration of selenium maintained this preconditioning effect up to the late phase of hypoxia-ischemia. Ccl2, Ccr2, Cxcl12, and Cxcr4 were upregulated, and long-term memory was improved. Pyknotic cells were decreased suggesting prevention of neuronal cell death. Our results show that the prophylactic zinc and therapeutic selenium administration induces effective neuroprotection in the early and late phases after CCAO.
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Kahl VFS, Dhillon V, Fenech M, de Souza MR, da Silva FN, Marroni NAP, Nunes EA, Cerchiaro G, Pedron T, Batista BL, Cappetta M, Mártinez-López W, Simon D, da Silva J. Occupational Exposure to Pesticides in Tobacco Fields: The Integrated Evaluation of Nutritional Intake and Susceptibility on Genomic and Epigenetic Instability. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:7017423. [PMID: 29967663 PMCID: PMC6009020 DOI: 10.1155/2018/7017423] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 03/14/2018] [Accepted: 04/04/2018] [Indexed: 12/16/2022]
Abstract
Pesticides used at tobacco fields are associated with genomic instability, which is proposed to be sensitive to nutritional intake and may also induce epigenetic changes. We evaluated the effect of dietary intake and genetic susceptibility polymorphisms in MTHFR (rs1801133) and TERT (rs2736100) genes on genomic and epigenetic instability in tobacco farmers. Farmers, when compared to a nonexposed group, showed increased levels of different parameters of DNA damage (micronuclei, nucleoplasmic bridges, and nuclear buds), evaluated by cytokinesis-block micronucleus cytome assay. Telomere length (TL) measured by quantitative PCR was shorter in exposed individuals. Global DNA methylation was significantly decreased in tobacco farmers. The exposed group had lower dietary intake of fiber, but an increase in cholesterol; vitamins such as B6, B12, and C; β-carotene; and α-retinol. Several trace and ultratrace elements were found higher in farmers than in nonfarmers. The MTHFR CT/TT genotype influenced nucleoplasmic bridges, nuclear buds, and TL in the exposed group, whereas TERT GT/TT only affected micronucleus frequency. We observed a positive correlation of TL and lipids and an inverse correlation of TL and fibers. The present data suggest an important role of dietary intake and subjects' genetic susceptibility to xenobiotics-induced damages and epigenetic alterations in tobacco farmers occupationally exposed to mixtures of pesticides.
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Affiliation(s)
- Vivian F. Silva Kahl
- Laboratory of Toxicological Genetics, Post-Graduate Program in Cellular and Molecular Biology Applied to Health (PPGBioSaúde), Lutheran University of Brazil (ULBRA), Av. Farroupilha, 8001 Canoas, RS, Brazil
| | - Varinderpal Dhillon
- Health and Biosecurity Flagship, Commonwealth Scientific and Industrial Research Organization (CSIRO), Gate 13 Kintore Avenue, Adelaide, SA, Australia
| | - Michael Fenech
- Health and Biosecurity Flagship, Commonwealth Scientific and Industrial Research Organization (CSIRO), Gate 13 Kintore Avenue, Adelaide, SA, Australia
| | - Melissa Rosa de Souza
- Laboratory of Toxicological Genetics, Post-Graduate Program in Cellular and Molecular Biology Applied to Health (PPGBioSaúde), Lutheran University of Brazil (ULBRA), Av. Farroupilha, 8001 Canoas, RS, Brazil
| | - Fabiane Nitzke da Silva
- Laboratory of Toxicological Genetics, Post-Graduate Program in Cellular and Molecular Biology Applied to Health (PPGBioSaúde), Lutheran University of Brazil (ULBRA), Av. Farroupilha, 8001 Canoas, RS, Brazil
| | - Norma Anair Possa Marroni
- Laboratory of Oxidative Stress, Post-Graduate Program in Cellular and Molecular Biology Applied to Health (PPGBioSaúde), Lutheran University of Brazil (ULBRA), Av. Farroupilha, 8001 Canoas, RS, Brazil
- Laboratory of Experimental Hepatology-Physiology, Federal University of Rio Grande do Sul (UFRGS), Rua Ramiro Barcelos, 2350 Porto Alegre, RS, Brazil
| | - Emilene Arusievicz Nunes
- Postgraduate Program in Biosystems, Foundation Federal University of ABC (UFABC), Av. dos Estados, 5001 Santo André, SP, Brazil
| | - Giselle Cerchiaro
- Postgraduate Program in Biosystems, Foundation Federal University of ABC (UFABC), Av. dos Estados, 5001 Santo André, SP, Brazil
| | - Tatiana Pedron
- Postgraduate Program in Science and Technology/Chemistry, Foundation Federal University of ABC (UFABC), Av. dos Estados, 5001 Santo André, SP, Brazil
| | - Bruno Lemos Batista
- Postgraduate Program in Science and Technology/Chemistry, Foundation Federal University of ABC (UFABC), Av. dos Estados, 5001 Santo André, SP, Brazil
| | - Mónica Cappetta
- Laboratory of Genetic Epidemiology, Genetics Department, Medicine School, Universidad de la República, Gral. Flores, 2125 Montevideo, Uruguay
| | - Wilner Mártinez-López
- Epigenetics and Genomic Instability Laboratory, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay
| | - Daniel Simon
- Laboratory of Human Molecular Genetics, Post-Graduate Program in Cellular and Molecular Biology Applied to Health (PPGBioSaúde), Lutheran University of Brazil (ULBRA), Av. Farroupilha, 8001 Canoas, RS, Brazil
| | - Juliana da Silva
- Laboratory of Toxicological Genetics, Post-Graduate Program in Cellular and Molecular Biology Applied to Health (PPGBioSaúde), Lutheran University of Brazil (ULBRA), Av. Farroupilha, 8001 Canoas, RS, Brazil
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