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Lieberman-Cribbin W, Domingo-Relloso A, Glabonjat RA, Schilling K, Cole SA, O'Leary M, Best LG, Zhang Y, Fretts AM, Umans JG, Goessler W, Navas-Acien A, Tellez-Plaza M, Kupsco A. An epigenome-wide study of selenium status and DNA methylation in the Strong Heart Study. ENVIRONMENT INTERNATIONAL 2024; 191:108955. [PMID: 39154409 DOI: 10.1016/j.envint.2024.108955] [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: 01/26/2024] [Revised: 06/19/2024] [Accepted: 08/13/2024] [Indexed: 08/20/2024]
Abstract
BACKGROUND Selenium (Se) is an essential nutrient linked to adverse health endpoints at low and high levels. The mechanisms behind these relationships remain unclear and there is a need to further understand the epigenetic impacts of Se and their relationship to disease. We investigated the association between urinary Se levels and DNA methylation (DNAm) in the Strong Heart Study (SHS), a prospective study of cardiovascular disease (CVD) among American Indians adults. METHODS Selenium concentrations were measured in urine (collected in 1989-1991) using inductively coupled plasma mass spectrometry among 1,357 participants free of CVD and diabetes. DNAm in whole blood was measured cross-sectionally using the Illumina MethylationEPIC BeadChip (850 K) Array. We used epigenome-wide robust linear regressions and elastic net to identify differentially methylated cytosine-guanine dinucleotide (CpG) sites associated with urinary Se levels. RESULTS The mean (standard deviation) urinary Se concentration was 51.8 (25.1) μg/g creatinine. Across 788,368 CpG sites, five differentially methylated positions (DMP) (hypermethylated: cg00163554, cg18212762, cg11270656, and hypomethylated: cg25194720, cg00886293) were significantly associated with Se in linear regressions after accounting for multiple comparisons (false discovery rate p-value: 0.10). The top hypermethylated DMP (cg00163554) was annotated to the Disco Interacting Protein 2 Homolog C (DIP2C) gene, which relates to transcription factor binding. Elastic net models selected 425 hypo- and hyper-methylated DMPs associated with urinary Se, including three sites (cg00163554 [DIP2C], cg18212762 [MAP4K2], cg11270656 [GPIHBP1]) identified in linear regressions. CONCLUSIONS Urinary Se was associated with minimal changes in DNAm in adults from American Indian communities across the Southwest and the Great Plains in the United States, suggesting that other mechanisms may be driving health impacts. Future analyses should explore other mechanistic biomarkers in human populations, determine these relationships prospectively, and investigate the potential role of differentially methylated sites with disease endpoints.
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Affiliation(s)
- Wil Lieberman-Cribbin
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA.
| | - Arce Domingo-Relloso
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA; Department of Biostatistics, Columbia University Mailman School of Public Health, New York, NY, USA
| | - Ronald A Glabonjat
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA
| | - Kathrin Schilling
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA
| | - Shelley A Cole
- Population Health Program, Texas Biomedical Research Institute, San Antonio, TX, USA
| | - Marcia O'Leary
- Missouri Breaks Industries Research, Cheyenne River Sioux Tribe, Eagle Butte, SD 57625, USA
| | - Lyle G Best
- Missouri Breaks Industries Research, Cheyenne River Sioux Tribe, Eagle Butte, SD 57625, USA
| | - Ying Zhang
- Department of Biostatistics and Epidemiology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Amanda M Fretts
- Department of Epidemiology, School of Public Health, University of Washington, Seattle, WA, USA
| | - Jason G Umans
- MedStar Health Research Institute, Hyattsville, MD, USA; Georgetown-Howard Universities Center for Clinical and Translational Science, Washington, DC, USA
| | | | - Ana Navas-Acien
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA
| | - Maria Tellez-Plaza
- Department of Chronic Diseases Epidemiology, National Center for Epidemiology, Instituto de Salud Carlos III, 28029, Madrid, Spain
| | - Allison Kupsco
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA
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Jiang C, Zhou W, Tu S, Yan J, Yang L. Rhizosphere enrichment and crop utilization of selenium and metals in typical permian soils of Enshi. CHEMOSPHERE 2024; 361:142472. [PMID: 38810800 DOI: 10.1016/j.chemosphere.2024.142472] [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: 11/27/2023] [Revised: 04/14/2024] [Accepted: 05/26/2024] [Indexed: 05/31/2024]
Abstract
Enshi, China, is renowned as "Selenium(Se) Capital" where widely distributed soils derived from Permian parent rocks are notably rich in Se, as well as metals, particularly cadmium(Cd). However, the soil enrichment and crop uptake of Se and metals in these high-Se and high-Cd areas are not well understood. To propose the optimal crop planting plan to ensure the safety of agricultural products, we investigated the soils and corresponding typical crops (rice, tea, and maize). The results showed significant soil enrichment of elements, with average contents (mg/kg) as follows: Cr (185), Zn (126), Cu (58.8), Pb (31.1), As (15.7), Se (6.85), Cd (5.41), and Hg (0.211). All soil Se contents were above 0.4 mg/kg, indicating Se-rich soils. Se primarily existed in an organic-bound form, accounting for an average proportion of 61.3%, while Cd was mainly exchangeable, with an average of 62.5%. Cd exhibited higher activity according to the Relative Index of Activity (RIA). Nemerow single-factor index analysis confirmed significant soil contamination, with Cd showing the highest level, followed by Cr and Cu, while Pb had the lowest level. Tea exhibited a high Se rich ratio (82.0%) without exceeding the Cd standard. In contrast, corn and rice had relatively lower Se-rich ratios (42.0% and 51.5% respectively) and high rates of Cd exceeding the standard, at 49.0% and 61.0% respectively. Canonical analysis revealed that rice was more influenced by soil factors related to Se and Cd compared to maize and tea crops. Therefore, tea cultivation in the Enshi Permian soil area is recommended for safe crop production. This study provides insights into the enrichment, fractionation, and bioavailability of soil Se, Cd, and other metals in the high-Se and high-Cd areas of permian stratas in Enshi, offering a scientific basis for selecting local food crops and producing safe Se-rich agricultural products in the region.
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Affiliation(s)
- Chengfeng Jiang
- Hubei Provincial Center for Soil Pollution Remediation Engineering, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Wei Zhou
- Hubei Institute of Geosciences (Hubei Selenium-Rich Industry Research Institute), Wuhan, 430070, PR China
| | - Shuxin Tu
- Hubei Provincial Center for Soil Pollution Remediation Engineering, Huazhong Agricultural University, Wuhan, 430070, PR China.
| | - Jiali Yan
- Hubei Institute of Geosciences (Hubei Selenium-Rich Industry Research Institute), Wuhan, 430070, PR China
| | - Liangzhe Yang
- Hubei Institute of Geosciences (Hubei Selenium-Rich Industry Research Institute), Wuhan, 430070, PR China
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Chalcarz M, Grabarek BO, de Mezer M, Krokowicz P, Patera J, Czupryna K, Żurawski J. Serum Selenium Concentration as a Potential Diagnostic Marker for Early-Stage Colorectal Cancer: A Comparative Study. Med Sci Monit 2024; 30:e942882. [PMID: 38504430 PMCID: PMC10962284 DOI: 10.12659/msm.942882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 01/24/2024] [Indexed: 03/21/2024] Open
Abstract
BACKGROUND Selenium deficiency is an established risk factor for colorectal cancer. The aim of the present study was to determine selenium levels in blood samples obtained from colorectal cancer patients compared with the levels of this element in the blood of patients who had undergone hernia repair and cholecystectomy. MATERIAL AND METHODS The study group consisted of 49 patients diagnosed with colorectal cancer at our institution. The comparison group consisted of 29 and 26 patients undergoing hernia repair and cholecystectomy, respectively. The histological staging level was evaluated on a 4-grade scale. Serum selenium concentration was quantified by inductively coupled mass spectrometry using methane to reduce polyatomic interference. RESULTS Colorectal cancer patients had significantly lower serum selenium concentration than the comparison patients (67.24±15.55 μg/L vs 78.81±12.93 μg/L; P<0.001), and selenium concentration was below the reference range in a high percentage of colorectal cancer patients. However, among the colorectal cancer patients, no significant difference in cancer grading was observed according to selenium concentration (P=0.235). Serum selenium concentration in the patients was evaluated on the basis of 5 independent variables (R=0.6250): age (P=0.011), number of leukocytes (P=0.010), family history of cancer (P=0.045), dietary supplements (P=0.023), and exposure to chemical factors (P=0.057). CONCLUSIONS This study supports findings from previous studies that low serum selenium levels are associated with colorectal cancer and that selenium deficiency may be a risk factor for colorectal cancer.
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Affiliation(s)
| | | | - Mateusz de Mezer
- Department of Immunobiology, Poznań University of Medical Sciences, Poznań, Poland
| | - Piotr Krokowicz
- Clinic of General and Colorectal Surgery, Poznań University of Medical Sciences, Poznań, Poland
| | - Janusz Patera
- Department of Medicine, University of Maria Skłodowska-Curie in Warsaw, Warsaw, Poland
| | | | - Jakub Żurawski
- Department of Immunobiology, Poznań University of Medical Science, Poznań, Poland
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Fekete M, Lehoczki A, Tarantini S, Fazekas-Pongor V, Csípő T, Csizmadia Z, Varga JT. Improving Cognitive Function with Nutritional Supplements in Aging: A Comprehensive Narrative Review of Clinical Studies Investigating the Effects of Vitamins, Minerals, Antioxidants, and Other Dietary Supplements. Nutrients 2023; 15:5116. [PMID: 38140375 PMCID: PMC10746024 DOI: 10.3390/nu15245116] [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: 11/13/2023] [Revised: 12/09/2023] [Accepted: 12/12/2023] [Indexed: 12/24/2023] Open
Abstract
Cognitive impairment and dementia are burgeoning public health concerns, especially given the increasing longevity of the global population. These conditions not only affect the quality of life of individuals and their families, but also pose significant economic burdens on healthcare systems. In this context, our comprehensive narrative review critically examines the role of nutritional supplements in mitigating cognitive decline. Amidst growing interest in non-pharmacological interventions for cognitive enhancement, this review delves into the efficacy of vitamins, minerals, antioxidants, and other dietary supplements. Through a systematic evaluation of randomized controlled trials, observational studies, and meta-analysis, this review focuses on outcomes such as memory enhancement, attention improvement, executive function support, and neuroprotection. The findings suggest a complex interplay between nutritional supplementation and cognitive health, with some supplements showing promising results and others displaying limited or context-dependent effectiveness. The review highlights the importance of dosage, bioavailability, and individual differences in response to supplementation. Additionally, it addresses safety concerns and potential interactions with conventional treatments. By providing a clear overview of current scientific knowledge, this review aims to guide healthcare professionals and researchers in making informed decisions about the use of nutritional supplements for cognitive health.
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Affiliation(s)
- Mónika Fekete
- Department of Public Health, Faculty of Medicine, Semmelweis University, 1089 Budapest, Hungary; (M.F.); (S.T.)
| | - Andrea Lehoczki
- National Institute for Haematology and Infectious Diseases, Department of Haematology and Stem Cell Transplantation, South Pest Central Hospital, 1097 Budapest, Hungary;
| | - Stefano Tarantini
- Department of Public Health, Faculty of Medicine, Semmelweis University, 1089 Budapest, Hungary; (M.F.); (S.T.)
- Department of Neurosurgery, The University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
- Department of Health Promotion Sciences, College of Public Health, The University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
- Peggy and Charles Stephenson Oklahoma Cancer Center, Oklahoma City, OK 73104, USA
| | - Vince Fazekas-Pongor
- Department of Public Health, Faculty of Medicine, Semmelweis University, 1089 Budapest, Hungary; (M.F.); (S.T.)
| | - Tamás Csípő
- Department of Public Health, Faculty of Medicine, Semmelweis University, 1089 Budapest, Hungary; (M.F.); (S.T.)
| | - Zoltán Csizmadia
- Faculty of Health Sciences, University of Pécs, 7621 Pécs, Hungary;
| | - János Tamás Varga
- Department of Pulmonology, Semmelweis University, 1083 Budapest, Hungary
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5
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Dogaru CB, Duță C, Muscurel C, Stoian I. "Alphabet" Selenoproteins: Implications in Pathology. Int J Mol Sci 2023; 24:15344. [PMID: 37895024 PMCID: PMC10607139 DOI: 10.3390/ijms242015344] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/08/2023] [Accepted: 10/16/2023] [Indexed: 10/29/2023] Open
Abstract
Selenoproteins are a group of proteins containing selenium in the form of selenocysteine (Sec, U) as the 21st amino acid coded in the genetic code. Their synthesis depends on dietary selenium uptake and a common set of cofactors. Selenoproteins accomplish diverse roles in the body and cell processes by acting, for example, as antioxidants, modulators of the immune function, and detoxification agents for heavy metals, other xenobiotics, and key compounds in thyroid hormone metabolism. Although the functions of all this protein family are still unknown, several disorders in their structure, activity, or expression have been described by researchers. They concluded that selenium or cofactors deficiency, on the one hand, or the polymorphism in selenoproteins genes and synthesis, on the other hand, are involved in a large variety of pathological conditions, including type 2 diabetes, cardiovascular, muscular, oncological, hepatic, endocrine, immuno-inflammatory, and neurodegenerative diseases. This review focuses on the specific roles of selenoproteins named after letters of the alphabet in medicine, which are less known than the rest, regarding their implications in the pathological processes of several prevalent diseases and disease prevention.
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Affiliation(s)
| | | | - Corina Muscurel
- Department of Biochemistry, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania (I.S.)
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Wu J, Xia C, Liu C, Zhang Q, Xia C. The role of gut microbiota and drug interactions in the development of colorectal cancer. Front Pharmacol 2023; 14:1265136. [PMID: 37680706 PMCID: PMC10481531 DOI: 10.3389/fphar.2023.1265136] [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: 07/22/2023] [Accepted: 08/14/2023] [Indexed: 09/09/2023] Open
Abstract
The human gut microbiota is a complex ecosystem regulating the host's environmental interaction. The same functional food or drug may have varying bioavailability and distinct effects on different individuals. Drugs such as antibiotics can alter the intestinal flora, thus affecting health. However, the relationship between intestinal flora and non-antibiotic drugs is bidirectional: it is not only affected by drugs; nevertheless, it can alter the drug structure through enzymes and change the bioavailability, biological activity, or toxicity of drugs to improve their efficacy and safety. This review summarizes the roles and mechanisms of antibiotics, antihypertensive drugs, nonsteroidal anti-inflammatory drugs, lipid-lowering drugs, hypoglycemic drugs, virus-associated therapies, metabolites, and dietary in modulating the colorectal cancer gut microbiota. It provides a reference for future antitumor therapy targeting intestinal microorganisms.
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Affiliation(s)
- Jinna Wu
- Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Department of Pharmacy, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, China
| | - Cong Xia
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Can Liu
- Affiliated Foshan Maternity and Child Healthcare Hospital, Southern Medical University, Foshan, China
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Qianshi Zhang
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Chenglai Xia
- Affiliated Foshan Maternity and Child Healthcare Hospital, Southern Medical University, Foshan, China
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
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Shashni B, Tamaoki J, Kobayashi M, Nagasaki Y. Design of a new self-assembling antioxidant nanomedicine to ameliorate oxidative stress in zebrafish embryos. Acta Biomater 2023; 159:367-381. [PMID: 36640953 DOI: 10.1016/j.actbio.2023.01.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 12/21/2022] [Accepted: 01/05/2023] [Indexed: 01/13/2023]
Abstract
Oxidative stress, which is a persistent state of elevated reactive oxygen species (ROS), is implicated in the pathogeneses of several diseases, making antioxidant-based therapeutics the aptest intervention. Nevertheless, the clinical failure of conventional low-molecular-weight (LMW) antioxidants in oxidative stress-related diseases to yield favorable therapeutic outcomes and an increased mortality rate attributable to their poor pharmacokinetic characteristics, necessitates the development of alternative therapeutics. In light of this, we designed and synthesized a new amphiphilic polymer functionalized with a clinically safe base polymer of poly(styrene-co-maleic anhydride) copolymer conjugated with the LMW pleiotropic antioxidant TEMPO (a potent antioxidant) and biocompatible poly(ethylene glycol) (TEMPO-installed PSMA-g-PEG), which self-assembles into nano-sized micelles (SMAPoTN) under physiological conditions. We investigated its safety and antioxidant ability using zebrafish models. Common LMW antioxidants, such as 4-hydroxy-TEMPO (TEMPOL), vitamin C, N-acetyl-L-cysteine, and edaravone exposure induced phenotypic distortions, a manifestation of developmental toxicity, and resulted in high lethality in zebrafish larvae. LMW TEMPOL also adversely affected embryo hatchability, induced arrhythmia and cardiac edema, and failed to protect against oxidative stress. In contrast, exposure of zebrafish embryos to SMAPoTN increased the hatchability, protected embryos against various inducers of oxidative stress, and did not induce any phenotypic alterations or discernible toxicity. Taken together, we conclude that SMAPoTN surpasses LMW TEMPOL in terms of the ability to protect zebrafish, attributable to efficient ROS scavenging without perturbing normal redox homeostasis. These results imply that SMAPoTN can be used as a therapeutic intervention against various oxidative stress-induced diseases. STATEMENT OF SIGNIFICANCE: Failure of low molecular weight (LMW) antioxidants to improve therapeutic index in various oxidative stress-related pathogenesis, attributable to their poor pharmacokinetic characteristics, greatly limits their clinical translation. To overcome this limitation, we developed a self-assembling antioxidant nanoparticle (SMAPoTN) comprised of amphiphilic polymer; poly(styrene-co-maleic anhydride) conjugated with TEMPO as an antioxidant and biocompatible poly(ethylene glycol). Preliminary studies carried out in the in vivo models of zebrafish embryos confirmed that exposure of LMW antioxidant resulted in acute developmental toxicity, high lethality, and failure to rescue embryos against oxidative stress inducers. In contrast, SMAPoTN did not exert discernible toxicity and significantly improved their survival under oxidative stress. Our finding establishes antioxidant nanoparticles as more suitable therapeutic intervention for oxidative stress-induced diseases than LMW antioxidants.
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Affiliation(s)
- Babita Shashni
- Faculty of Pure and Applied Sciences, University of Tsukuba, Tennoudai 1-1-1, Tsukuba, Ibaraki 305-8573, Japan
| | - Junya Tamaoki
- Faculty of Medicine, University of Tsukuba, Tennoudai 1-1-1, Tsukuba, Ibaraki 305-8575, Japan
| | - Makoto Kobayashi
- Faculty of Medicine, University of Tsukuba, Tennoudai 1-1-1, Tsukuba, Ibaraki 305-8575, Japan
| | - Yukio Nagasaki
- Faculty of Pure and Applied Sciences, University of Tsukuba, Tennoudai 1-1-1, Tsukuba, Ibaraki 305-8573, Japan; Master's Program in Medical Sciences, University of Tsukuba, Tennoudai 1-1-1, Tsukuba, Ibaraki 305-8573, Japan; Center for Research in Isotopes and Environmental Dynamics, University of Tsukuba, Tennoudai 1-1-1, Tsukuba, Ibaraki 305-8573, Japan.
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8
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Zhang H, Xu Z, Zhang J, Wei D, Liu K, Hu W, Wang J. Disordered serum essential element levels are associated with increased risk of kidney tumors. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:31675-31685. [PMID: 35013964 DOI: 10.1007/s11356-021-18201-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Accepted: 12/14/2021] [Indexed: 06/14/2023]
Abstract
Essential elements play vital roles in the regulation of carcinogenesis. We aimed to investigate the relationship between essential elements and kidney tumors. This study included 72 healthy individuals and 100 kidney tumor patients. The concentrations of cobalt (Co), chromium (Cr), copper (Cu), iron (Fe), manganese (Mn), nickel (Ni), selenium (Se), and zinc (Zn) were determined by inductively coupled plasma mass spectrometry. The random forest model was used to evaluate the importance of each variable by using the randomForest package. The associations between essential elements and clinical tumor characteristics were examined by the Mann-Whitney U-test, and the log-rank test was used to assess the Kaplan-Meier curves. The levels of Co, Cr, Fe, Mn, Ni, and Zn in patients with kidney tumors were significantly lower. In the random forest model, the top two metallic features were Co and Zn. The Kaplan-Meier curve showed that patients with lower Co, Se, and Zn levels exhibited lower progression-free survival. In summary, this study gathered evidence that disordered essential elements are associated with kidney tumors and thus opens a new path to elucidate the etiology of kidney tumors from the perspective of environmental health and safety.
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Affiliation(s)
- Hui Zhang
- Department of Urology, Shandong Qianfoshan Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250013, Shandong, China
| | - Zhipeng Xu
- Department of Urology, Shandong Qianfoshan Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250013, Shandong, China
- Department of Urology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Medicine and Health Key Laboratory of Organ Transplantation and Nephrosis, Shandong Institute of Nephrology, Jinan, 250013, Shandong, China
| | - Jie Zhang
- The First Affiliated Hospital of Shandong First Medical University, Jinan, 250014, Shandong, China
- Biomedical Sciences College & Shandong Medicinal Biotechnology Centre, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, 250117, Shandong, China
| | - Dan Wei
- Department of Endocrinology and Metabology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Key Laboratory of Rheumatic Disease and Translational Medicine, Shandong Institute of Nephrology, Jinan, 250013, Shandong, China
| | - Kai Liu
- Department of Urology, Shandong Qianfoshan Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250013, Shandong, China
| | - Wenxin Hu
- Department of Urology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Medicine and Health Key Laboratory of Organ Transplantation and Nephrosis, Shandong Institute of Nephrology, Jinan, 250013, Shandong, China
| | - Jianning Wang
- Department of Urology, Shandong Qianfoshan Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250013, Shandong, China.
- Department of Urology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Medicine and Health Key Laboratory of Organ Transplantation and Nephrosis, Shandong Institute of Nephrology, Jinan, 250013, Shandong, China.
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Impact of Selenium on Biomarkers and Clinical Aspects Related to Ageing. A Review. Biomolecules 2021; 11:biom11101478. [PMID: 34680111 PMCID: PMC8533247 DOI: 10.3390/biom11101478] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 09/30/2021] [Accepted: 10/04/2021] [Indexed: 02/06/2023] Open
Abstract
Selenium (Se) is an essential dietary trace element that plays an important role in the prevention of inflammation, cardiovascular diseases, infections, and cancer. Selenoproteins contain selenocysteine in the active center and include, i.a., the enzymes thioredoxin reductases (TXNRD1–3), glutathione peroxidases (GPX1–4 and GPX6) and methionine sulfoxide reductase, involved in immune functions, metabolic homeostasis, and antioxidant defense. Ageing is an inevitable process, which, i.a., involves an imbalance between antioxidative defense and reactive oxygen species (ROS), changes in protein and mitochondrial renewal, telomere attrition, cellular senescence, epigenetic alterations, and stem cell exhaustion. These conditions are associated with mild to moderate inflammation, which always accompanies the process of ageing and age-related diseases. In older individuals, Se, by being a component in protective enzymes, operates by decreasing ROS-mediated inflammation, removing misfolded proteins, decreasing DNA damage, and promoting telomere length. Se-dependent GPX1–4 and TXNRD1–3 directly suppress oxidative stress. Selenoprotein H in the cell nucleus protects DNA, and selenoproteins residing in the endoplasmic reticulum (ER) assist in the removal of misfolded proteins and protection against ER stress. In this review, we highlight the role of adequate Se status for human ageing and prevention of age-related diseases, and further its proposed role in preservation of telomere length in middle-aged and elderly individuals.
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Luo H, Fang YJ, Zhang X, Feng XL, Zhang NQ, Abulimiti A, Huang CY, Zhang CX. Association between Dietary Zinc and Selenium Intake, Oxidative Stress-Related Gene Polymorphism, and Colorectal Cancer Risk in Chinese Population - A Case-Control Study. Nutr Cancer 2020; 73:1621-1630. [PMID: 32777945 DOI: 10.1080/01635581.2020.1804950] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Zinc and selenium may protect against colorectal cancer (CRC) progression through their anti-oxidative effects. This study examined the independent and combined effect of dietary zinc and selenium intake, and polymorphisms of the oxidative stress-related genes (superoxide dismutase 1, superoxide dismutase 2, glutathione peroxidase, and catalase) on CRC risk in a Chinese case-control study. A total of 493 cases and 498 sex and age-matched controls were randomly selected from an ongoing case-control study. Dietary information was assessed through face-to-face interviews using a validated food frequency questionnaire. Multiplex PCR-ligase detection reaction was used for genotyping the target SNPs. Multivariable logistic regression was used to estimate the odds ratios (ORs) and 95% confidence interval (CI). Intake of selenium was found to be inversely associated with CRC risk, while zinc was not associated with CRC risk. The ORs (95% CI) for the highest vs. the lowest quartile were 0.42 (95% CI 0.28, 0.64, Ptrend < 0.001) for selenium and 0.96 (95% CI 0.63, 1.47, Ptrend = 0.505) for zinc. Combined effect was observed between zinc and SOD1 rs4998557 on CRC risk (Pinteraction < 0.05). This study identified a novel diet-gene interaction in the oxidative stress pathway on CRC risk in Chinese population.
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Affiliation(s)
- Hong Luo
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Yu-Jing Fang
- Department of Colorectal Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, People's Republic of China.,Department of Experimental Research, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, People's Republic of China
| | - Xin Zhang
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Xiao-Li Feng
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Nai-Qi Zhang
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Alinuer Abulimiti
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Chu-Yi Huang
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Cai-Xia Zhang
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, People's Republic of China
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Narod SA, Huzarski T, Jakubowska A, Gronwald J, Cybulski C, Oszurek O, Dębniak T, Jaworska-Bieniek K, Lener M, Białkowska K, Sukiennicki G, Muszyńska M, Marciniak W, Sun P, Kotsopoulos J, Lubiński J. Serum selenium level and cancer risk: a nested case-control study. Hered Cancer Clin Pract 2019; 17:33. [PMID: 31890061 PMCID: PMC6929308 DOI: 10.1186/s13053-019-0131-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 12/09/2019] [Indexed: 12/25/2022] Open
Abstract
Background Epidemiologic studies have demonstrated a relationship between selenium status and cancer risk among those with low selenium levels. It is of interest to prospectively evaluate the relationship between selenium and cancer among women who reside in a region with ubiquitously low selenium levels. Methods We performed a nested case-control study of baseline serum selenium levels and cancer risk using data and biological samples from 19,573 females that were participants in a biobanking initiative between 2010 and 2014 in Szczecin Poland. Cases included women with any incident cancer (n = 97) and controls (n = 184) were women with no cancer at baseline or follow-up. Serum selenium was quantified using mass spectroscopy. Results The odds ratio associated being below the cutoff of 70.0 μg/L compared to a level above 70.0 μg/L was 2.29 (95% CI 1.26–4.19; P = 0.007). The risks for women in the two middle categories were similar and suggests that the normal range be between 70 μg/L and 90 μg/L. There was evidence for an increased risk of cancer among women in the highest category of selenium levels (i.e., > 90 μg/L), but this association did not achieve statistical significance (OR = 1.63; 95%CI 0.63–4.19; P = 0.31). Conclusions Results from this study suggest that suggest that the optimum serum level of selenium in women living in Poland should be between 70 μg/L and 90 μg/L.
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Affiliation(s)
- Steven A Narod
- 1Women's College Research Institute, Toronto, Canada.,2Dalla Lana School of Public Health, University of Toronto, Toronto, Canada
| | - Tomasz Huzarski
- 3Department of Genetics and Pathology, International Hereditary Cancer Center, Pomeranian Medical University, Szczecin, Poland.,Read-Gene SA, Grzepnica, Szczecin, Poland
| | - Anna Jakubowska
- 3Department of Genetics and Pathology, International Hereditary Cancer Center, Pomeranian Medical University, Szczecin, Poland.,Read-Gene SA, Grzepnica, Szczecin, Poland.,5Independent laboratory of Molecular Biology and Genetic Diagnostics, Pomeranian Medical University, Szczecin, Poland
| | - Jacek Gronwald
- 3Department of Genetics and Pathology, International Hereditary Cancer Center, Pomeranian Medical University, Szczecin, Poland.,Read-Gene SA, Grzepnica, Szczecin, Poland
| | - Cezary Cybulski
- 3Department of Genetics and Pathology, International Hereditary Cancer Center, Pomeranian Medical University, Szczecin, Poland.,Read-Gene SA, Grzepnica, Szczecin, Poland
| | - Oleg Oszurek
- 3Department of Genetics and Pathology, International Hereditary Cancer Center, Pomeranian Medical University, Szczecin, Poland.,Read-Gene SA, Grzepnica, Szczecin, Poland
| | - Tadeusz Dębniak
- 3Department of Genetics and Pathology, International Hereditary Cancer Center, Pomeranian Medical University, Szczecin, Poland.,Read-Gene SA, Grzepnica, Szczecin, Poland
| | - Katarzyna Jaworska-Bieniek
- 3Department of Genetics and Pathology, International Hereditary Cancer Center, Pomeranian Medical University, Szczecin, Poland.,Read-Gene SA, Grzepnica, Szczecin, Poland
| | - Marcin Lener
- 3Department of Genetics and Pathology, International Hereditary Cancer Center, Pomeranian Medical University, Szczecin, Poland
| | - Katarzyna Białkowska
- 3Department of Genetics and Pathology, International Hereditary Cancer Center, Pomeranian Medical University, Szczecin, Poland.,Read-Gene SA, Grzepnica, Szczecin, Poland
| | - Grzegorz Sukiennicki
- 3Department of Genetics and Pathology, International Hereditary Cancer Center, Pomeranian Medical University, Szczecin, Poland
| | | | | | - Ping Sun
- 1Women's College Research Institute, Toronto, Canada
| | - Joanne Kotsopoulos
- 1Women's College Research Institute, Toronto, Canada.,2Dalla Lana School of Public Health, University of Toronto, Toronto, Canada
| | - Jan Lubiński
- 3Department of Genetics and Pathology, International Hereditary Cancer Center, Pomeranian Medical University, Szczecin, Poland.,Read-Gene SA, Grzepnica, Szczecin, Poland
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12
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Varlamova EG, Maltseva VN. Micronutrient Selenium: Uniqueness and Vital Functions. Biophysics (Nagoya-shi) 2019. [DOI: 10.1134/s0006350919040213] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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13
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Peters KM, Carlson BA, Gladyshev VN, Tsuji PA. Selenoproteins in colon cancer. Free Radic Biol Med 2018; 127:14-25. [PMID: 29793041 PMCID: PMC6168369 DOI: 10.1016/j.freeradbiomed.2018.05.075] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 05/18/2018] [Accepted: 05/20/2018] [Indexed: 02/07/2023]
Abstract
Selenocysteine-containing proteins (selenoproteins) have been implicated in the regulation of various cell signaling pathways, many of which are linked to colorectal malignancies. In this in-depth excurse into the selenoprotein literature, we review possible roles for human selenoproteins in colorectal cancer, focusing on the typical hallmarks of cancer cells and their tumor-enabling characteristics. Human genome studies of single nucleotide polymorphisms in various genes coding for selenoproteins have revealed potential involvement of glutathione peroxidases, thioredoxin reductases, and other proteins. Cell culture studies with targeted down-regulation of selenoproteins and studies utilizing knockout/transgenic animal models have helped elucidate the potential roles of individual selenoproteins in this malignancy. Those selenoproteins, for which strong links to development or progression of colorectal cancer have been described, may be potential future targets for clinical interventions.
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Affiliation(s)
- Kristin M Peters
- Dept. of Biological Sciences, Towson University, 8000 York Rd, Towson, MD 21252, United States.
| | - Bradley A Carlson
- National Cancer Institute, National Institutes of Health, 9000 Rockville Pike, Bethesda, MD 20892, United States.
| | - Vadim N Gladyshev
- Dept. of Medicine, Brigham & Women's Hospital, Harvard Medical School, 77 Avenue Louis Pasteur, Boston, MA 02115, United States.
| | - Petra A Tsuji
- Dept. of Biological Sciences, Towson University, 8000 York Rd, Towson, MD 21252, United States.
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14
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Nettleford SK, Prabhu KS. Selenium and Selenoproteins in Gut Inflammation-A Review. Antioxidants (Basel) 2018; 7:antiox7030036. [PMID: 29494512 PMCID: PMC5874522 DOI: 10.3390/antiox7030036] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 02/17/2018] [Accepted: 02/24/2018] [Indexed: 12/21/2022] Open
Abstract
Inflammatory bowel disease (IBD), characterized by severe flares and remissions, is a debilitating condition. While the etiology is unknown, many immune cells, such as macrophages, T cells and innate lymphoid cells, are implicated in the pathogenesis of the disease. Previous studies have shown the ability of micronutrient selenium (Se) and selenoproteins to impact inflammatory signaling pathways implicated in the pathogenesis of the disease. In particular, two transcription factors, nuclear factor-κB (NF-κB), and peroxisome proliferator activated receptor (PPAR)γ, which are involved in the activation of immune cells, and are also implicated in various stages of inflammation and resolution, respectively, are impacted by Se status. Available therapies for IBD produce detrimental side effects, resulting in the need for alternative therapies. Here, we review the current understanding of the role of NF-κB and PPARγ in the activation of immune cells during IBD, and how Se and selenoproteins modulate effective resolution of inflammation to be considered as a promising alternative to treat IBD.
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Affiliation(s)
- Shaneice K Nettleford
- Center for Molecular Immunology and Infectious Disease and Center for Molecular Toxicology and Carcinogenesis, The Pennsylvania State University, University Park, PA 16802, USA.
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA.
| | - K Sandeep Prabhu
- Center for Molecular Immunology and Infectious Disease and Center for Molecular Toxicology and Carcinogenesis, The Pennsylvania State University, University Park, PA 16802, USA.
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA.
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15
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Ullah H, Liu G, Yousaf B, Ali MU, Abbas Q, Munir MAM, Mian MM. Developmental selenium exposure and health risk in daily foodstuffs: A systematic review and meta-analysis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 149:291-306. [PMID: 29268101 DOI: 10.1016/j.ecoenv.2017.11.056] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 11/19/2017] [Accepted: 11/22/2017] [Indexed: 06/07/2023]
Abstract
Selenium (Se) is a trace mineral and an essential nutrient of vital importance to human health in trace amounts. It acts as an antioxidant in both humans and animals, immunomodulator and also involved in the control of specific endocrine pathways. The aim of this work is to provide a brief knowledge on selenium content in daily used various foodstuffs, nutritional requirement and its various health consequences. In general, fruits and vegetables contain low content of selenium, with some exceptions. Selenium level in meat, eggs, poultry and seafood is usually high. For most countries, cereals, legumes, and derivatives are the major donors to the dietary selenium intake. Low level of selenium has been related with higher mortality risk, dysfunction of an immune system, and mental failure. Selenium supplementation or higher selenium content has antiviral outcomes and is necessary for effective reproduction of male and female, also decreases the threat of chronic disease (autoimmune thyroid). Generally, some advantages of higher content of selenium have been shown in various potential studies regarding lung, colorectal, prostate and bladder cancers risk, nevertheless results depicted from different trials have been diverse, which perhaps indicates the evidence that supplementation will merely grant advantage if the intakes of a nutrient is deficient. In conclusion, the over-all people should be advised against the usage of Se supplements for prevention of cardiovascular, hepatopathies, or cancer diseases, as advantages of Se supplements are still ambiguous, and their haphazard usage could result in an increased Se toxicity risk. The associations among Se intake/status and health, or disease risk, are complicated and need exposition to notify medical practice, to improve dietary recommendations, and to develop adequate communal health guidelines.
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Affiliation(s)
- Habib Ullah
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, PR China; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi'an, Shaanxi 710075, China.
| | - Guijian Liu
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, PR China; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi'an, Shaanxi 710075, China.
| | - Balal Yousaf
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, PR China.
| | - Muhammad Ubaid Ali
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, PR China.
| | - Qumber Abbas
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, PR China.
| | - Mehr Ahmed Mujtaba Munir
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, PR China.
| | - Md Manik Mian
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, PR China.
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16
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Schott M, de Jel MM, Engelmann JC, Renner P, Geissler EK, Bosserhoff AK, Kuphal S. Selenium-binding protein 1 is down-regulated in malignant melanoma. Oncotarget 2018. [PMID: 29535818 PMCID: PMC5828193 DOI: 10.18632/oncotarget.23853] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Selenium-binding protein 1 (SELENBP1) expression is reduced in various epithelial cancer entities compared to corresponding normal tissue and has already been described as a tumor suppressor involved in the regulation of cell proliferation, senescence, migration and apoptosis. We identified SELENBP1 to be down-regulated in cutaneous melanoma, a malignant cancer of pigment-producing melanocytes in the skin, which leads to the assumption that SELENBP1 also functions as tumor suppressor in the skin, as shown by others e.g. for prostate or lung carcinoma. However, in vitro analyses indicate that SELENBP1 re-expression in human melanoma cell lines has no impact on cell proliferation, migration or tube formation of the tumor cells themselves when compared to control-transfected cells. Interestingly, supernatant taken from melanoma cell lines transfected with a SELENBP1 re-expression plasmid led to suppression of vessel formation of HMEC cells. Furthermore, SELENBP1 re-expression alters the sensitivity of melanoma cells for Vemurafenib treatment. The data also hint to a functional interaction of SELENBP1 with GPX1 (Glutathione peroxidase 1). Low SELENBP1 mRNA levels correlate inversely with GPX1 expression in melanoma. The re-expression of SELENBP1 combined with down-regulation of GPX1 expression led to reduction of the proliferation of melanoma cells. In summary, SELENBP1 influences the tumor microenvironment and SELENBP1 action is functionally influenced by GPX1.
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Affiliation(s)
- Mandy Schott
- University of Erlangen, Institute of Biochemistry, Biochemistry and Molecular Medicine, Erlangen, Germany
| | - Miriam M de Jel
- University of Erlangen, Institute of Biochemistry, Biochemistry and Molecular Medicine, Erlangen, Germany
| | - Julia C Engelmann
- University of Regensburg, Institute of Functional Genomics, Statistical Bioinformatics, Regensburg, Germany
| | - Philipp Renner
- Department of Surgery, University Medical Center Regensburg, Regensburg, Germany
| | - Edward K Geissler
- Department of Surgery, University Medical Center Regensburg, Regensburg, Germany
| | - Anja K Bosserhoff
- University of Erlangen, Institute of Biochemistry, Biochemistry and Molecular Medicine, Erlangen, Germany
| | - Silke Kuphal
- University of Erlangen, Institute of Biochemistry, Biochemistry and Molecular Medicine, Erlangen, Germany
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17
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Méplan C. Association of Single Nucleotide Polymorphisms in Selenoprotein Genes with Cancer Risk. Methods Mol Biol 2018; 1661:313-324. [PMID: 28917054 DOI: 10.1007/978-1-4939-7258-6_22] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Genetic association studies have linked genetic variants in the Selenium (Se) metabolism with the development of complex diseases such as cancer and helped unravel novel mechanisms underlying cancer development. The chapter describes the specificity of genetic variants in the Se metabolism, the approaches used in association studies, and the limitations of such approaches.
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Affiliation(s)
- Catherine Méplan
- School of Biomedical Sciences, Faculty of Medical Sciences, Newcastle University, Framlington Place, Newcastle Upon Tyne, NE2 4HH, UK.
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18
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Sasso A, Latella G. Dietary components that counteract the increased risk of colorectal cancer related to red meat consumption. Int J Food Sci Nutr 2017; 69:536-548. [PMID: 29096565 DOI: 10.1080/09637486.2017.1393503] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Western-style diets are associated with an increased risk of colorectal cancer (CRC). In particular, a strong correlation has been documented between CRC and the consumption of large amounts of red meat, especially processed red meat. Compared with white meat, red meat contains high levels of haem iron, a molecule that can exert a variety of genotoxic and other adverse effects on the colonic epithelium. According to current international guidelines, the reduction of red meat intake combined with the consumption of food containing antioxidant and chemoprotective substances may significantly reduce the risk of developing CRC. The dietary strategies that can help to contrast the harmful effects of haem iron are reported and discussed in this review.
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Affiliation(s)
- Arianna Sasso
- a Division of Gastroenterology, Hepatology and Nutrition, Department of Life, Health, and Environmental Sciences , University of L'Aquila , L'Aquila , Italy
| | - Giovanni Latella
- a Division of Gastroenterology, Hepatology and Nutrition, Department of Life, Health, and Environmental Sciences , University of L'Aquila , L'Aquila , Italy
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19
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Murdolo G, Bartolini D, Tortoioli C, Piroddi M, Torquato P, Galli F. Selenium and Cancer Stem Cells. Adv Cancer Res 2017; 136:235-257. [PMID: 29054420 DOI: 10.1016/bs.acr.2017.07.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Selenium (Se) is an essential micronutrient that functions as "redox gatekeeper" and homeostasis factor of normal and cancer cells. Epidemiology and experimental studies, in the last years suggested that both inorganic and organic forms of Se may have favorable health effects. In this regard, a protective action of Se on cellular systems that may help preventing cancer cell differentiation has been demonstrated, while the hypothesis that Se compounds may cure cancer and its metastatic diffusion appears speculative and is still a matter of investigation. Indeed, the overall actions of Se compounds in carcinogenesis are controversial. The recognition that cancer is a stem cell disease instigated major paradigm shifts in our basic understanding of cancer and attracted a great deal of interest. Although current treatment approaches in cancer are grounded in the need to kill the majority of cancer cells, targeting cancer stem cells (CSCs) may hold great potential in improving cancer treatment. In this respect, Se compounds have been demonstrated modulating numerous signaling pathways involved in CSC biology and these findings are now stimulating further research on optimal Se concentrations, most effective and cancer-specific Se compounds, and inherent pathways involved in redox and metabolic regulation of CSCs. In this review, we summarize the current knowledge about the effects of Se compounds on CSCs, by focusing on redox-dependent pathways and main gene regulation checkpoints that affect self-renewal, differentiation, and migration responses in this subpopulation of cancer cells.
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Affiliation(s)
- Giuseppe Murdolo
- Section of Internal Medicine, Endocrine and Metabolic Sciences, University of Perugia, Perugia, Italy.
| | | | - Cristina Tortoioli
- Section of Internal Medicine, Endocrine and Metabolic Sciences, University of Perugia, Perugia, Italy
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20
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Sandsveden M, Manjer J. Selenium and breast cancer risk: A prospective nested case-control study on serum selenium levels, smoking habits and overweight. Int J Cancer 2017; 141:1741-1750. [PMID: 28681438 DOI: 10.1002/ijc.30875] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2017] [Revised: 06/15/2017] [Accepted: 06/21/2017] [Indexed: 01/20/2023]
Abstract
Previous research has not been conclusive regarding the association between selenium (Se) and breast cancer. This study was conducted to clarify if there is an association between prediagnostic serum Se levels and breast cancer risk. A population based cohort, the Malmö Diet and Cancer Study, was used and linked with the Swedish cancer registry up to 31 December 2013. Our study included 1,186 women with breast cancer and an equal number of controls. Selenium levels were analysed from stored serum samples. The included individuals were divided into quartiles based on Se value and we compared breast cancer cases with controls using logistic regression yielding odds ratios (OR) with 95% confidence intervals. Serum Se was also analysed as a continuous variable regarding breast cancer risk. The analyses were adjusted for established risk factors and stratified on smoking status and body mass index (BMI). When comparing the highest Se quartile with the lowest, the adjusted OR for breast cancer was 0.98 (0.75-1.26). With selenium as a continuous variable the adjusted OR was 1.00 (1.00-1.01) per 10 ng/ml. When comparing the highest with the lowest Se quartile in women with BMI > 25 kg/m2 the adjusted OR was 0.77 (0.53-1.14). We conclude that it is unlikely that prediagnostic serum selenium is overall associated with breast cancer risk and no modifying effect from BMI or smoking was seen.
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Affiliation(s)
- Malte Sandsveden
- Department of Surgery, Skåne University Hospital Malmö, Lund University, Malmö, Sweden
| | - Jonas Manjer
- Department of Surgery, Skåne University Hospital Malmö, Lund University, Malmö, Sweden
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21
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Abdel-Hafez SH, Abdelwahab AB, Kirsch G. Design, synthesis and cytotoxic activity of vitamin E bearing selenium compounds against human breast cancer cell line (MCF-7). PHOSPHORUS SULFUR 2017. [DOI: 10.1080/10426507.2017.1333505] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Shams H. Abdel-Hafez
- Chemistry Department, Faculty of Science, Taif University, Taif, Saudi Arabia
- Chemistry Department, Faculty of Science, Assiut University, Assiut, Egypt
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22
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Antimutagenic Effects of Selenium-Enriched Polysaccharides from Pyracantha fortuneana through Suppression of Cytochrome P450 1A Subfamily in the Mouse Liver. Molecules 2016; 21:molecules21121731. [PMID: 27999293 PMCID: PMC6272851 DOI: 10.3390/molecules21121731] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Revised: 11/24/2016] [Accepted: 12/02/2016] [Indexed: 11/17/2022] Open
Abstract
Both selenium (Se) and polysaccharides from Pyracantha fortuneana (Maxim.) Li (PFPs) (P. fortuneana) have been reported to possess antioxidative and immuno-protective activities. Whether or not Se-containing polysaccharides (Se-PFPs) have synergistic effect of Se and polysaccharides on enhancing the antioxidant and immune activities remains to be determined. We previously reported that polysaccharides isolated from Se-enriched P. fortuneana (Se-PFPs) possessed hepatoprotective effects. However, it is not clear whether or not they have anti-mutagenic effects. In the present study, we compared and evaluated anti-mutagenic effects of Se-PFPs at three concentrations (1.35, 2.7 and 5.4 g/kg body weight) with those of PFPs, Se alone or Se + PFPs in mice using micronucleus assay in bone marrow and peripheral blood as well as mitomycin C-induced chromosomal aberrations in mouse testicular cells. We also elucidated the underlying mechanism. Our results demonstrated that Se-PFPs inhibited cyclophosphamide (CP)-induced micronucleus formation in both bone marrow and peripheral blood, enhanced the activities of superoxide dismutase (SOD) and glutathione peroxidase (GPx) in mouse liver, and reduced the activity and expression of cytochrome P450 1A (CYP4501A) in mouse liver in a dose-dependent manner. In addition, we found that the anti-mutagenic potential of Se-PFPs was higher than those of PFPs, Se alone or Se + PFPs at the same level. These results suggest that the anti-mutagenic potential of Se-PFPs may be mediated through the inhibition of the activity and expression of CYP4501A. This study indicates that application of Se-PFPs may provide an alternative strategy for cancer therapy by targeting CYP1A family.
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Abstract
BACKGROUND Colorectal cancer is a commonly diagnosed cancer and the cause of many cancer deaths worldwide. Nutrients might be crucial in the pathogenesis and development of colorectal cancer. Although a number of studies have demonstrated the potential effects of nutrients, many challenges still remain. SUMMARY A tremendous amount of research has emerged concerning the roles of nutrients in colorectal cancer during the past decades. Here, we review the latest research progress on nutrients, including vitamins, folic acid, calcium, selenium and dietary fiber, involved in colorectal cancer prevention. KEY MESSAGE Nutrients are commonly consumed in foods or dietary supplements. It is clear that nutrients could play an important role and influence colorectal cancer outcomes. The relationship between nutrients and colorectal risk is complex. Vitamins, folic acid, calcium, selenium and dietary fiber have been proposed as potential agents to prevent colorectal cancer. However, some studies found that these nutrients did not reduce the incidence of colorectal cancer. PRACTICAL IMPLICATIONS The supplementary dose of nutrients, the length of time required to observe the effects and confounding factors during the study might influence the role of nutrients in the prevention of colorectal cancer. Therefore, more evidence from ongoing clinical trials with different population groups and longer follow-up periods is critical to determine the relationship between nutrients and colorectal cancer.
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Affiliation(s)
- Wan Du
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jing-Yuan Fang
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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24
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Janakiram NB, Mohammed A, Madka V, Kumar G, Rao CV. Prevention and treatment of cancers by immune modulating nutrients. Mol Nutr Food Res 2016; 60:1275-94. [PMID: 26833775 PMCID: PMC6038926 DOI: 10.1002/mnfr.201500884] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Revised: 01/16/2016] [Accepted: 01/18/2016] [Indexed: 12/11/2022]
Abstract
Epidemiological and laboratory data support the protective effects of bioactive nutrients in our diets for various diseases. Along with various factors, such as genetic history, alcohol, smoking, exercise, and dietary choices play a vital role in affecting an individual's immune responses toward a transforming cell, by either preventing or accelerating a neoplastic transformation. Ample evidence suggests that dietary nutrients control the inflammatory and protumorigenic responses in immune cells. Immunoprevention is usually associated with the modulation of immune responses that help in resolving the inflammation, thus improving clinical outcome. Various metabolic pathway-related nutrients, including glutamine, arginine, vitamins, minerals, and long-chain fatty acids, are important components of immunonutrient mixes. Epidemiological studies related to these substances have reported different results, with no or minimal effects. However, several studies suggest that these nutrients may have immune-modulating effects that may lower cancer risk. Preclinical studies submit that most of these components may provide beneficial effects. The present review discusses the available data, the immune-modulating functions of these nutrients, and how these substances could be used to study immune modulation in a neoplastic environment. Further research will help to determine whether the mechanistic signaling pathways in immune cells altered by nutrients can be exploited for cancer prevention and treatment.
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Affiliation(s)
- Naveena B. Janakiram
- Center for Cancer Prevention and Drug Development, Department of Medicine, Hematology Oncology Section, Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Altaf Mohammed
- Center for Cancer Prevention and Drug Development, Department of Medicine, Hematology Oncology Section, Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Venkateshwar Madka
- Center for Cancer Prevention and Drug Development, Department of Medicine, Hematology Oncology Section, Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Gaurav Kumar
- Center for Cancer Prevention and Drug Development, Department of Medicine, Hematology Oncology Section, Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Chinthalapally V. Rao
- Center for Cancer Prevention and Drug Development, Department of Medicine, Hematology Oncology Section, Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
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25
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Dietary selenium intake and mortality in two population-based cohort studies of 133 957 Chinese men and women. Public Health Nutr 2016; 19:2991-2998. [PMID: 27197889 DOI: 10.1017/s1368980016001130] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
OBJECTIVE To investigate the potential influence of dietary Se intake on mortality among Chinese populations. DESIGN We prospectively evaluated all-cause, CVD and cancer mortality risks associated with dietary Se intake in participants of the Shanghai Women's Health Study (SWHS) and the Shanghai Men's Health study (SMHS). Dietary Se intake was assessed by validated FFQ during in-person interviews. Cox proportional hazards models were used to calculate hazard ratios (HR) and 95 % CI. SETTING Urban city in China. SUBJECTS Chinese adults (n 133 957). RESULTS During an average follow-up of 13·90 years in the SWHS and 8·37 years in the SMHS, 5749 women and 4217 men died. The mean estimated dietary Se intake was 45·48 μg/d for women and 51·34 μg/d for men, respectively. Dietary Se intake was inversely associated with all-cause mortality and CVD mortality in both women and men, with respective HR for the highest compared with the lowest quintile being 0·79 (95 % CI 0·71, 0·88; P trend<0·0001) and 0·80 (95 % CI 0·66, 0·98; P trend=0·0268) for women, and 0·79 (95 % CI 0·70, 0·89; P trend=0·0001) and 0·66 (95 % CI 0·54, 0·82; P trend=0·0002) for men. No significant associations were observed for cancer mortality in both women and men. Results were similar in subgroup and sensitivity analyses. CONCLUSIONS Dietary Se intake was inversely associated with all-cause and cardiovascular mortality in both sexes, but not cancer mortality.
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Tagaram HRS, Desai D, Li G, Liu D, Rountree CB, Gowda K, Berg A, Amin S, Staveley-O'Carroll KF, Kimchi ET. A Selenium Containing Inhibitor for the Treatment of Hepatocellular Cancer. Pharmaceuticals (Basel) 2016; 9:E18. [PMID: 27023566 PMCID: PMC4932536 DOI: 10.3390/ph9020018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 03/11/2016] [Accepted: 03/16/2016] [Indexed: 11/16/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is the third most deadly cancer in the world. New treatment strategies are desperately needed due to limited standard therapies. Activation of the Erk, Akt, and STAT3pathways is implicated in the prognosis of HCC. The Se,Se'-1,4-phenylenebis(1,2-ethanediyl) bisisoselenourea (PBISe), is a selenium-containing MAPK and PI3 kinase inhibitor, effectively inhibit tumorigenesis in a variety of experimental models. The aim of our study is to demonstrate the potential role of PBISe in the treatment of HCC. The anti-proliferative and pro-apoptotic ability of PBISe is studied in vitro in four human HCC cell lines and in vivo in a spontaneous murine HCC model. Inhibition of cancer growth was performed by cell viability assay and apoptosis by caspase 3/7, PARP cleavage, annexin-V, and TUNEL assays. Role of PBISe on PI3 kinase, MAPK and STAT3 signaling is determined by Western blotting. In vivo effects of PBISe on tumor sizes were monitored using MRI in a spontaneous murine HCC. Liver tissues from the PBISe-treated mice are analyzed for angiogenesis, proliferation, and signaling pathway markers. Overall, PBISe activated caspase-3/7 and increased DNA fragmentation, which is positively correlated with the increased PARP cleavage. PBISe promoted apoptosis by inhibiting PI3K, MAPK, and STAT3 signaling with significant reduction in the tumor sizes (p < 0.007). PBISe-treated tumors reduced survival marker PCNA, and angiogenesis markers Vegf-A, Vegf-R3 and CD34. These results demonstrate the chemotherapeutic effects of PBISe, by inhibiting tumor growth and facilitating tumor apoptosis for HCC treatment.
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Affiliation(s)
| | - Dhimant Desai
- Department of Pharmacology, Pennsylvania State University, Hershey, PA 17033, USA.
| | - Guangfu Li
- Medical University of South Carolina, Charleston, SC 29425, USA.
| | - Dai Liu
- Medical University of South Carolina, Charleston, SC 29425, USA.
| | - C Bart Rountree
- Bon Secours Pediatric Associates, 5875 Bremo Road, Richmond, VA 23226, USA.
| | - Kavitha Gowda
- Department of Surgery, Pennsylvania State University, Hershey, PA 17033, USA.
| | - Arthur Berg
- Department of Public Health Sciences, Pennsylvania State University, Hershey, PA 17033, USA.
| | - Shantu Amin
- Department of Pharmacology, Pennsylvania State University, Hershey, PA 17033, USA
| | | | - Eric T Kimchi
- Medical University of South Carolina, Charleston, SC 29425, USA.
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Ates D, Sever T, Aldemir S, Yagmur B, Temel HY, Kaya HB, Alsaleh A, Kahraman A, Ozkan H, Vandenberg A, Tanyolac B. Identification QTLs Controlling Genes for Se Uptake in Lentil Seeds. PLoS One 2016; 11:e0149210. [PMID: 26978666 PMCID: PMC4792374 DOI: 10.1371/journal.pone.0149210] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Accepted: 01/28/2016] [Indexed: 01/03/2023] Open
Abstract
Lentil (Lens culinaris Medik.) is an excellent source of protein and carbohydrates and is also rich in essential trace elements for the human diet. Selenium (Se) is an essential micronutrient for human health and nutrition, providing protection against several diseases and regulating important biological systems. Dietary intake of 55 μg of Se per day is recommended for adults, with inadequate Se intake causing significant health problems. The objective of this study was to identify and map quantitative trait loci (QTL) of genes controlling Se accumulation in lentil seeds using a population of 96 recombinant inbred lines (RILs) developed from the cross “PI 320937” × “Eston” grown in three different environments for two years (2012 and 2013). Se concentration in seed varied between 119 and 883 μg/kg. A linkage map consisting of 1,784 markers (4 SSRs, and 1,780 SNPs) was developed. The map spanned a total length of 4,060.6 cM, consisting of 7 linkage groups (LGs) with an average distance of 2.3 cM between adjacent markers. Four QTL regions and 36 putative QTL markers, with LOD scores ranging from 3.00 to 4.97, distributed across two linkage groups (LG2 and LG5) were associated with seed Se concentration, explaining 6.3–16.9% of the phenotypic variation.
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Affiliation(s)
- Duygu Ates
- Department of Bioengineering, Faculty of Engineering, Ege University, Bornova, Izmir, Turkey
| | - Tugce Sever
- Department of Bioengineering, Faculty of Engineering, Ege University, Bornova, Izmir, Turkey
| | - Secil Aldemir
- Department of Bioengineering, Faculty of Engineering, Ege University, Bornova, Izmir, Turkey
| | - Bulent Yagmur
- Department of Bioengineering, Faculty of Engineering, Ege University, Bornova, Izmir, Turkey
| | - Hulya Yilmaz Temel
- Department of Bioengineering, Faculty of Engineering, Ege University, Bornova, Izmir, Turkey
| | - Hilal Betul Kaya
- Department of Bioengineering, Faculty of Engineering, Ege University, Bornova, Izmir, Turkey
| | - Ahmad Alsaleh
- Department of Field Crops, Faculty of Agriculture, Cukurova University, Adana, Turkey
| | - Abdullah Kahraman
- Department of Field Crops, Faculty of Agriculture, Harran University, Sanlı Urfa, Turkey
| | - Hakan Ozkan
- Department of Field Crops, Faculty of Agriculture, Cukurova University, Adana, Turkey
| | - Albert Vandenberg
- Crop Development Centre, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Bahattin Tanyolac
- Department of Bioengineering, Faculty of Engineering, Ege University, Bornova, Izmir, Turkey
- * E-mail:
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Abstract
Low-Se status may be associated with a higher risk of notably advanced prostate cancer. In a Danish population with a relatively low Se intake, we investigated the association between pre-diagnostic Se status and (1) the risk of total, advanced and high-grade prostate cancer and (2) all-cause and prostate cancer-specific mortality among men with prostate cancer. Within the Danish 'Diet, Cancer and Health' cohort, including 27 179 men, we identified 784 cases with incident prostate cancer through 2007. Each case was risk set-matched to one control. Two-thirds (n 525) of the cases had advanced disease at the time of diagnosis, and among these 170 had high-grade disease; 305 cases died (n 212 from prostate cancer) during follow-up through 2012. Plasma Se was not associated with total or advanced prostate cancer risk, but higher Se levels were associated with a lower risk of high-grade disease (HR 0·77; 95 % CI 0·64, 0·94; P=0·009). In survival analyses, a higher level of plasma Se was associated with a lower risk of all-cause (HR 0·92; 95 % CI 0·85, 1·00; P=0·04), but not prostate cancer-specific mortality. Higher levels of selenoprotein P were associated with a lower risk of high-grade disease (HR 0·85; 95 % CI 0·74, 0·97; P=0·01), but not with the risk of or mortality from advanced prostate cancer. In conclusion, levels of plasma Se and selenoprotein P were not associated with the risk of total and advanced prostate cancer, but higher levels of these two biomarkers were associated with a lower risk of high-grade disease.
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Vasiljeva J, Domracheva I, Arsenyan P. Selenium analogues of ( S )-clopidogrel: preparation method and properties. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2015.11.102] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Çelen İ, Müezzinoğlu T, Ataman OY, Bakırdere S, Korkmaz M, Neşe N, Şenol F, Lekili M. Selenium, nickel, and calcium levels in cancerous and non-cancerous prostate tissue samples and their relation with some parameters. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:13070-13076. [PMID: 25925146 DOI: 10.1007/s11356-015-4555-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2014] [Accepted: 04/16/2015] [Indexed: 06/04/2023]
Abstract
In the present study, tissue samples of patients with cancerous and non-cancerous prostate were analyzed for their Se, Ni, and Ca contents. Possible relationship between Se, Ni, and Ca concentrations and some parameters including preoperative prostate-specific antigen (PSA) levels, histopathological neurovascular invasion, extra-capsular extension, seminal vesicle invasion, positive surgical margins, PSA relapse after radical prostatectomy, and total Gleason scores were obtained. Inductively coupled plasma (ICP) optical emission spectrometry and ICP-mass spectrometry instruments were used for the determination of analytes interested. All the system parameters in digestion and measurement steps were optimized to obtain efficient digestion and sensitive measurements. There was no statistically meaningful difference observed in the concentration of selenium in cancerous and benign prostatic tissues (p = 0.347) while nickel levels in cancerous tissues were observed as significantly lower than benign tissues (p < 0.001). In addition, calcium concentration in cancerous tissue samples were found to be statistically lower than those in benign tissues (p < 0.001) with mean values of 657 and 1,431 mg/kg, respectively.
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Affiliation(s)
- İlker Çelen
- Denizli State Hospital, 20100, Denizli, Turkey,
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Selenium and chronic diseases: a nutritional genomics perspective. Nutrients 2015; 7:3621-51. [PMID: 25988760 PMCID: PMC4446770 DOI: 10.3390/nu7053621] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Revised: 04/28/2015] [Accepted: 05/06/2015] [Indexed: 01/10/2023] Open
Abstract
Mechanistic data have revealed a key role for selenium (Se) and selenoproteins in biological pathways known to be altered in multifactorial diseases, such as cellular maintenance, response to oxidative stress and correct protein folding. Although epidemiological studies indicate that low Se intake is linked to increased risk for various chronic diseases, supplementation trials have given confusing outcomes, suggesting that additional genetic factors could affect the relationship between Se and health. Genetic data support this hypothesis, as risk for several chronic diseases, in particular cancer, was linked to a number of single nucleotide polymorphisms (SNP) altering Se metabolism, selenoprotein synthesis or activity. Interactions between SNPs in selenoprotein genes, SNPs in related molecular pathways and biomarkers of Se status were found to further modulate the genetic risk carried by the SNPs. Taken together, nutritional genomics approaches uncovered the potential implication of some selenoproteins as well as the influence of complex interactions between genetic variants and Se status in the aetiology of several chronic diseases. This review discusses the results from these genetic associations in the context of selenoprotein functions and epidemiological investigations and emphasises the need to assess in future studies the combined contribution of Se status, environmental stress, and multiple or individual SNPs to disease risk.
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Arsenyan P, Vasiljeva J, Shestakova I, Domracheva I, Jaschenko E, Romanchikova N, Leonchiks A, Rudevica Z, Belyakov S. Selenopheno[3,2-c]- and [2,3-c]coumarins: Synthesis, cytotoxicity, angiogenesis inhibition, and antioxidant properties. CR CHIM 2015. [DOI: 10.1016/j.crci.2014.09.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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33
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Dietary polyphenols in prevention and treatment of prostate cancer. Int J Mol Sci 2015; 16:3350-76. [PMID: 25654230 PMCID: PMC4346900 DOI: 10.3390/ijms16023350] [Citation(s) in RCA: 126] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Revised: 01/21/2015] [Accepted: 01/26/2015] [Indexed: 02/06/2023] Open
Abstract
Prostate cancer is the most prevalent disease affecting males in many Western countries, with an estimated 29,480 deaths in 2014 in the US alone. Incidence rates for prostate cancer deaths have been decreasing since the early 1990s in men of all races/ethnicities, though they remain about 60% higher in African Americans than in any other group. The relationship between dietary polyphenols and the prevention of prostate cancer has been examined previously. Although results are sometimes inconsistent and variable, there is a general agreement that polyphenols hold great promise for the future management of prostate cancer. Various dietary components, including polyphenols, have been shown to possess anti-cancer properties. Generally considered as non-toxic, dietary polyphenols act as key modulators of signaling pathways and are therefore considered ideal chemopreventive agents. Besides possessing various anti-tumor properties, dietary polyphenols also contribute to epigenetic changes associated with the fate of cancer cells and have emerged as potential drugs for therapeutic intervention. Polyphenols have also been shown to affect post-translational modifications and microRNA expressions. This article provides a systematic review of the health benefits of selected dietary polyphenols in prostate cancer, especially focusing on the subclasses of polyphenols, which have a great effect on disease prevention and treatment.
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Wang Y, Fang W, Huang Y, Hu F, Ying Q, Yang W, Xiong B. Reduction of selenium-binding protein 1 sensitizes cancer cells to selenite via elevating extracellular glutathione: a novel mechanism of cancer-specific cytotoxicity of selenite. Free Radic Biol Med 2015; 79:186-96. [PMID: 25445402 DOI: 10.1016/j.freeradbiomed.2014.11.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Revised: 11/14/2014] [Accepted: 11/20/2014] [Indexed: 01/14/2023]
Abstract
Selenium is an essential trace element and has been extensively studied for preventive effects on cancers. Recent emerging evidence has also shown that selenium at supranutritional dosage has a preferential cytotoxicity in cancer cells and chemotherapeutic drug-resistant cells, but the underlying mechanisms remain largely unknown. This study was to investigate the roles of two distinct representatives of selenium-containing proteins, selenium-binding protein 1 (SBP1) and glutathione peroxidase 1 (GPX1), in selenite-mediated cancer-specific cytotoxicity. We found that there was a significantly inverse correlation between SBP1 and GPX1 protein level in human breast cancers and adjacent matched nontumor tissues (Pearson r=-0.4347, P=0.0338). Ectopic expression of GPX1 enhanced selenite cytotoxicity through down-regulation of SBP1, and SBP1 was likely to be a crucial determinant for selenite-mediated cytotoxicity. Reduction of SBP1 in cancer cells and epirubicin-resistant cells on selenite exposure resulted in a dramatic increase in the generation of hydrogen peroxide and superoxide anion, which in turn caused oxidative stress and triggered apoptosis. Furthermore, knockdown SBP1 by small interfering RNA increased selenite sensitivity by elevating extracellular glutathione (GSH), which spontaneously reacted with selenite and led to the rapid depletion of selenium (IV) in growth medium and the high-affinity uptake of selenite. In conclusion, these findings would improve our understanding of the roles of selenium-containing proteins in selenite-mediated cytotoxicity, and revealed a potent mechanism of the selective cytotoxicity of selenite in cancer cells and drug-resistant cells, in which SBP1 was likely to play an important role in modulating the extracellular microenvironment by regulating the levels of extracellular GSH.
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Affiliation(s)
- Yulei Wang
- Department of Oncology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, 430071, China; Hubei Key Laboratory of Tumor Biological Behaviors, Hubei Cancer Clinical Study Center, Wuhan, Hubei, 430071, China
| | - Wenfeng Fang
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, 510060, China
| | - Ying Huang
- Department of Oncology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, 430071, China; Department of Oncology, the Fifth Hospital, Wuhan, Hubei, 430051, China
| | - Fen Hu
- Department of Oncology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, 430071, China
| | - Qi Ying
- Department of Pathology, University of Illinois at Chicago, IL 60612, USA
| | - Wancai Yang
- Department of Pathology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, China; Department of Pathology, University of Illinois at Chicago, IL 60612, USA.
| | - Bin Xiong
- Department of Oncology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, 430071, China; Hubei Key Laboratory of Tumor Biological Behaviors, Hubei Cancer Clinical Study Center, Wuhan, Hubei, 430071, China.
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35
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Selenium-Functionalized Molecules (SeFMs) as Potential Drugs and Nutritional Supplements. TOPICS IN MEDICINAL CHEMISTRY 2015. [DOI: 10.1007/7355_2015_87] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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Arsenyan P, Paegle E, Domracheva I, Gulbe A, Kanepe-Lapsa I, Shestakova I. Selenium analogues of raloxifene as promising antiproliferative agents in treatment of breast cancer. Eur J Med Chem 2014; 87:471-83. [PMID: 25282270 DOI: 10.1016/j.ejmech.2014.09.088] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Revised: 09/24/2014] [Accepted: 09/28/2014] [Indexed: 10/24/2022]
Abstract
Synthetic protocols for the preparation of selenium analogues of raloxifene were elaborated. General aim of the current research is to improve the positive impact of selenium atom introduction in drug design. Antiproliferative activity on CCL-8 (mouse sarcoma), MDA-MB-435s (human melanoma), MES-SA (human uterus sarcoma), MCF-7 (human breast adenocarcinoma), HT-1080 (human fibrosarcoma), MG-22A (mouse hepatoma) tumor cell lines, and normal cell line NIH 3T3 (mouse fibroblasts) was studied. Influence of aminoethoxy "tail" and benzoyl group position on SAR was discussed. Results of in vivo studies on BALB/c female mice with 4T1 cell induced breast cancer model showed that selenium analogue of raloxifene is able to suppress estrogen-depending tumor growth.
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Affiliation(s)
- Pavel Arsenyan
- Department of Medicinal Chemistry, Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006 Riga, Latvia.
| | - Edgars Paegle
- Department of Medicinal Chemistry, Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006 Riga, Latvia
| | - Ilona Domracheva
- Department of Medicinal Chemistry, Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006 Riga, Latvia
| | - Anita Gulbe
- Department of Medicinal Chemistry, Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006 Riga, Latvia
| | - Iveta Kanepe-Lapsa
- Department of Medicinal Chemistry, Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006 Riga, Latvia
| | - Irina Shestakova
- Department of Medicinal Chemistry, Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006 Riga, Latvia
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Chao MW, Erkekoglu P, Tseng CY, Ye W, Trudel LJ, Skipper PL, Tannenbaum SR, Wogan GN. Protective effects of ascorbic acid against the genetic and epigenetic alterations induced by 3,5-dimethylaminophenol in AA8 cells. J Appl Toxicol 2014; 35:466-77. [PMID: 25178734 DOI: 10.1002/jat.3046] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Revised: 06/06/2014] [Accepted: 06/11/2014] [Indexed: 12/25/2022]
Abstract
Exposure to monocyclic aromatic alkylanilines (MAAs), namely 2,6-dimethylaniline (2,6-DMA), 3,5-dimethylaniline (3,5-DMA) and 3-ethylaniline (3-EA), was significantly and independently associated with bladder cancer incidence. 3,5-DMAP (3,5-dimethylaminophenol), a metabolite of 3,5-DMA, was shown to induce an imbalance in cytotoxicity cellular antioxidant/oxidant status, and DNA damage in mammalian cell lines. This study was designed to evaluate the protective effect of ascorbic acid (Asc) against the cytotoxicity, reactive oxygen species (ROS) production, genotoxicity and epigenetic changes induced by 3,5-DMAP in AA8 Chinese Hamster Ovary (CHO) cells. In different cellular fractions, 3,5-DMAP caused alterations in the enzyme activities orchestrating a cellular antioxidant balance, decreases in reduced glutathione levels and a cellular redox ratio as well as increases in lipid peroxidation and protein oxidation. We also suggest that the cellular stress caused by this particular alkylaniline leads to both genetic (Aprt mutagenesis) and epigenetic changes in histones 3 and 4 (H3 and H4). This may further cause molecular events triggering different pathological conditions and eventually cancer. In both cytoplasm and nucleus, Asc provided increases in 3,5-DMAP-reduced glutathione levels and cellular redox ratio and decreases in the lipid peroxidation and protein oxidation. Asc was also found to be protective against the genotoxic and epigenetic effects initiated by 3,5-DMAP. In addition, Asc supplied protection against the cell cycle (G1 phase) arrest induced by this particular alkylaniline metabolite.
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Affiliation(s)
- Ming-Wei Chao
- Department of BioScience Technology, Chung Yuan Christian University, Chungli, Taoyuan, Taiwan, 320; Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
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WU SUN, BAO YONGHUA, MA DONG, ZI YOUMEI, YANG CUI, YANG MAN, XING MENGTAO, YANG WANCAI. Sodium selenite inhibits leukemia HL-60 cell proliferation and induces cell apoptosis by enhancing the phosphorylation of JNK1 and increasing the expression of p21 and p27. Int J Mol Med 2014; 34:1175-9. [DOI: 10.3892/ijmm.2014.1854] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Accepted: 06/30/2014] [Indexed: 11/06/2022] Open
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Saleh N, Khowdiary M, Badawi AF. Synthesis and Antitumor and Surface Activity of Novel Tetrachloro Metallate Complexes of Sulfaquinoxaline with Co(II), Cu(II), or Sn(II) Chlorides. TENSIDE SURFACT DET 2014. [DOI: 10.3139/113.110313] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
AbstractNew sulfonamide tetrachloro metallate complexes that might possess strong carbonic anhydrase (CA) inhibitory properties were synthesized by the reaction of 4-amino-N-(quinoxalin-2-yl) benzene sulfonamide (sulfaquinoxaline) hydrochloride with different metal chlorides, i.e. CoCl2, CuCl2 or SnCl2. The produced metal complexes of the sulfonamide derivative, containing divalent cations, were characterized by standard procedures. These metal complexes might possess topical antiglaucoma properties which might make them more effective as pharmacological agents. The synthesized complexes exhibited significant cytotoxic activity against colon HCT-116 human cell line. Surface properties of these surfactants were investigated. The surface properties studies included critical micelle concentration (CMC), maximum surface excess (Γmax), minimum surface area (Amin). Free energy of micellization (ΔG°mic) and adsorption (ΔG°ads) were calculated.
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Affiliation(s)
- Nashwa Saleh
- 1Department of Chemistry, Faculty of Science (Girl's), Al-Azhar University, Nasr City, Cairo, Egypt
| | - Manal Khowdiary
- 2Applied Surfactant Laboratory, Egyptian Petroleum, Research Institute, Nasr City, Cairo, Egypt
| | - Abdel Fattah Badawi
- 2Applied Surfactant Laboratory, Egyptian Petroleum, Research Institute, Nasr City, Cairo, Egypt
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Bioprocess production of sea cucumber rice wine and characterization of functional components and antioxidant activities. Food Sci Biotechnol 2014. [DOI: 10.1007/s10068-014-0109-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
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Vance TM, Su J, Fontham ETH, Koo SI, Chun OK. Dietary antioxidants and prostate cancer: a review. Nutr Cancer 2014; 65:793-801. [PMID: 23909722 DOI: 10.1080/01635581.2013.806672] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Prostate cancer is the most common noncutaneous cancer in men in the United States. Several studies have examined the relationship between prostate cancer and antioxidants; however, the results of these studies are inconsistent. This article provides a systematic review of studies on prostate cancer and antioxidant intake from diet and supplements. Tea and coffee appear to offer protection against advanced prostate cancer. Different forms of vitamin E appear to exert different effects on prostate cancer, with alpha-tocopherol potentially increasing and gamma-tocopherol potentially decreasing risk of the disease. There is no strong evidence for a beneficial effect of selenium, vitamin C, or beta-carotene, whereas lycopene appears to be negatively associated with risk of the disease. The effect of dietary antioxidants on prostate cancer remains undefined and inconclusive, with different antioxidants affecting prostate cancer risk differentially. Further studies are needed to clarify the relationship between antioxidants and prostate cancer risk and to delineate the underlying mechanisms.
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Affiliation(s)
- Terrence M Vance
- Department of Nutritional Sciences, University of Connecticut, Storrs, Connecticut 06269, USA
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Geybels MS, van den Brandt PA, Schouten LJ, van Schooten FJ, van Breda SG, Rayman MP, Green FR, Verhage BAJ. Selenoprotein gene variants, toenail selenium levels, and risk for advanced prostate cancer. J Natl Cancer Inst 2014; 106:dju003. [PMID: 24563517 DOI: 10.1093/jnci/dju003] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Lower selenium levels have been associated with increased risk of prostate cancer (PCa), and genetic variation in the selenoprotein genes selenoprotein P (SEPP1) and glutathione peroxidase 1 (GPX1) is thought to modify this relationship. We investigated whether the association between toenail selenium levels and advanced PCa risk in the prospective Netherlands Cohort Study is modified by common genetic variation in SEPP1 and GPX1. Toenail clippings were used to determine selenium levels and to isolate DNA for genotyping. This case-cohort study, which included 817 case subjects with advanced PCa and 1048 subcohort members, was analyzed with Cox regression models. All statistical tests were two-sided. Three genetic variants were associated with advanced (stage III/IV or IV) PCa risk: SEPP1 rs7579 (lower risk; P trend = .01), GPX1 rs17650792 (higher risk; P trend = .03), and GPX1 rs1800668 (lower risk; P trend = .005). Toenail selenium levels were inversely associated with advanced PCa risk, independently of common genetic variation in SEPP1 and GPX1.
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Affiliation(s)
- Milan S Geybels
- Affiliations of authors: Department of Epidemiology (MSG, PvdB, LS, BV) and Department of Toxicogenomics (SvB), GROW School for Oncology and Developmental Biology, and Department of Toxicology (FvS), NUTRIM School for Nutrition, Toxicology, and Metabolism, Maastricht University, Maastricht, the Netherlands; Department of Nutritional Sciences (MR) and Department of Biochemistry and Physiology (FG), Faculty of Health and Medical Sciences, University of Surrey, Guildford, UK
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Maciel-Dominguez A, Swan D, Ford D, Hesketh J. Selenium alters miRNA profile in an intestinal cell line: evidence that miR-185 regulates expression of GPX2 and SEPSH2. Mol Nutr Food Res 2013; 57:2195-205. [PMID: 23934683 DOI: 10.1002/mnfr.201300168] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Revised: 04/25/2013] [Accepted: 05/23/2013] [Indexed: 12/30/2022]
Abstract
SCOPE Intake of the essential micronutrient selenium (Se) has health implications. This work addressed whether some effects of Se on gene expression are exerted through microRNAs (miRNA). METHODS AND RESULTS Human colon adenocarcinoma cells (Caco-2) were grown in Se-deficient or Se-adequate medium for 72 h. RNA was extracted and subjected to analysis of 737 miRNA using microarray technology. One hundred and forty-five miRNA were found to be expressed in Caco-2 cells. Twelve miRNA showed altered expression after Se depletion: miR-625, miR-492, miR-373*, miR-22, miR-532-5p, miR-106b, miR-30b, miR-185, miR-203, miR1308, miR-28-5p, miR-10b. These changes were validated by quantitative real-time PCR (RT-qPCR). Transcriptomic analysis showed that Se depletion altered expression of 50 genes including selenoproteins GPX1, SELW, GPX3, SEPN1, SELK, SEPSH2 and GPX4. Pathway analysis identified arachidonic acid metabolism, glutathione metabolism, oxidative stress, positive acute phase response proteins and respiration of mitochondria as Se-sensitive pathways. Bioinformatic analysis identified 13 transcripts as targets for the Se-sensitive miRNA; three were predicted to be recognised by miR-185. Silencing of miR-185 increased GPX2 and SEPSH2 expression. CONCLUSIONS We propose that miR-185 plays a role in up-regulation of GPX2 and SEPHS2 expression. In the case of SEPHS2 this may contribute to maintaining selenoprotein synthesis. The data indicate that micronutrient supply can regulate the cell miRNA expression profile.
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Affiliation(s)
- Anabel Maciel-Dominguez
- Institute for Cell and Molecular Biosciences, Newcastle University, Newcastle upon Tyne, UK; Human Nutrition Research Centre, Newcastle University, Newcastle upon Tyne, UK
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Cho SY, Lee HJ, Cho SM, Kim B, Jung YK, Kim SH. Particled Mica, STB-HO has chemopreventive potential via G1 arrest, and inhibition of proliferation and vascular endothelial growth factor receptor 2 in HCT colorectal cancer cells. Altern Ther Health Med 2013; 13:189. [PMID: 23883349 PMCID: PMC3765551 DOI: 10.1186/1472-6882-13-189] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Accepted: 07/09/2013] [Indexed: 11/23/2022]
Abstract
Background Though Mica, a thin and sheet like mineral, has been used as a mineral medicine for treatment of bleeding, dysentery and inflammation in traditional medicine including Ayurveda, the biological evidences of Mica were not clearly elucidated so far. Thus, in the present study, the antitumor mechanism of particled Mica (STB-HO) was examined in colorectal cancers. Methods Athymic nude mice were inoculated with HCT116 colon cancer cells and orally administered STB-HO daily for 41 days, and HCT116 and human umbilical vein endothelial cells (HUVECs) were treated with STB-HO for 0 ~ 24 hours to perform immunoblotting, cytotoxicity assay, FACs analysis and measurement of matrix metalloproteinase 9 (MMP-9) secretion and other experiments. Significant differences of all date were evaluated using Student’s t-test and a Turkey-Kramer multiple-comparison post test. Results STB-HO significantly suppressed the tumor volume and weight in athymic nude mice inoculated with HCT116 cells at a dose of 100 mg/kg. Thus, the in vivo antitumor mechanism of STB-HO was to elucidated in vitro as well. STB-HO exerted cytotoxicity in HCT116, SW620 and HCT15 colorectal cancer cells. Also, STB-HO increased G1 cell population in a time and concentration dependent manner, enhanced the expression of p21, p27, p53 as cyclin dependent kinase (CDK) inhibitors, attenuated the expression of proliferating cell nuclear antigen (PCNA) and cyclin D1 and also reduced the production of vascular endothelial growth factor (VEGF) and matrix metalloproteinase 9 (MMP-9) in HCT116 cells. Consistently, STB-HO suppressed the phosphorylation of VEGFR2 in HCT116, SW620 and HCT15 cells. Also, STB-HO inhibited the VEGF mediated proliferation and also attenuated the phosphorylation of VEGFR2 and Akt in human umbilical vein endothelial cells (HUVECs). Conclusions Collectively, these findings suggest that STB-HO has chemopreventive potential via G1 arrest and inhibition of proliferation and VEGFR2 in HCT116 colorectal cancer cells.
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Geybels MS, Verhage BAJ, van Schooten FJ, Goldbohm RA, van den Brandt PA. Advanced prostate cancer risk in relation to toenail selenium levels. J Natl Cancer Inst 2013; 105:1394-401. [PMID: 23878355 DOI: 10.1093/jnci/djt186] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Selenium may prevent advanced prostate cancer (PCa), but most studies on this topic were conducted in populations with moderate to high selenium status. We investigated the association of toenail selenium, reflecting long-term selenium exposure, and advanced PCa risk in a population from the Netherlands where low selenium status is widespread. METHODS The analysis was conducted in the prospective Netherlands Cohort Study, which included 58 279 men aged 55 to 69 years at baseline in 1986. All cohort members completed a baseline questionnaire, and approximately 79% of participants provided toenail clippings, which were used for toenail selenium measurements using instrumental neutron activation analysis. Incident advanced PCa case subjects from the entire cohort were identified during 17.3 years of follow-up. The study employed a case-cohort design for which a random subcohort was sampled at baseline. Hazard ratios and 95% confidence intervals (CIs) were estimated using Cox proportional hazards regression models. All tests were two-sided. RESULTS Complete toenail selenium data were available for 898 advanced (International Union Against Cancer stage III/IV) PCa case subjects and 1176 subcohort members. The average toenail selenium concentration of subcohort members was 0.550 µg/g. Toenail selenium was associated with a reduced risk of advanced PCa; adjusted hazard ratio for the highest vs lowest quintile was 0.37 (95% CI = 0.27 to 0.51; P trend < .001). For stage IV PCa, men in the highest vs lowest quintile of toenail selenium had an adjusted hazard ratio of 0.30 (95% CI = 0.21 to 0.45; P trend < .001). CONCLUSIONS Toenail selenium was associated with a substantial decrease in risk of advanced PCa.
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Affiliation(s)
- Milan S Geybels
- Affiliations of authors: Department of Epidemiology, GROW School for Oncology and Developmental Biology, (MSG, BAJV, PAvdB) and Department of Toxicology, NUTRIM School for Nutrition, Toxicology, and Metabolism (FJvS), Maastricht University, Maastricht, the Netherlands; TNO, Leiden, the Netherlands (RAG)
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He S, Mao X, Liu P, Lin H, Du Z, Lv N, Han J, Qiu C. Research into the functional components and antioxidant activities of North China rice wine (Ji Mo Lao Jiu). Food Sci Nutr 2013; 1:307-14. [PMID: 24804035 PMCID: PMC3951597 DOI: 10.1002/fsn3.39] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2013] [Revised: 04/09/2013] [Accepted: 04/21/2013] [Indexed: 12/21/2022] Open
Abstract
Over the last decade, considerable experimental evidence has supported the view that grape wine and South China rice wine are rich in diverse nutrients and have powerful antioxidant activity. However, little research has been carried out for North China rice wine, of which Ji Mo Lao Jiu (JMLJ) is the outstanding representative. In this study, the functional components and antioxidant activity of JMLJ were investigated. Twenty-eight free amino acids were found in JMLJ, much more than that previously reported in other Chinese rice wines (16-21). Functional oligosaccharides (5290.222 mg/L), total phenols (722.431 ± 10.970 mg/L), and mineral elements (9) were rich in JMLJ. When compared with synthetic antioxidants, such as butylated hydroxyanisole (BHA) and butylated hydroxytoluene (BHT), JMLJ showed effective 1,1-diphenyl-2-picryl-hydrazyl (DPPH) radical scavenging and reducing capacity. The results of this study lay the foundation for promoting the utilization of JMLJ and the development of North China rice wine in the food industry.
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Affiliation(s)
- Shuai He
- College of Food Science and Engineering, Ocean University of ChinaQingdao, 266003, China
| | - Xiangzhao Mao
- College of Food Science and Engineering, Ocean University of ChinaQingdao, 266003, China
| | - Pei Liu
- College of Food Science and Engineering, Ocean University of ChinaQingdao, 266003, China
| | - Hong Lin
- College of Food Science and Engineering, Ocean University of ChinaQingdao, 266003, China
| | - Zuyuan Du
- Shandong Ji Mo Lao Jiu winemaking companyQingdao, 266200, China
| | - Ning Lv
- Shandong Entry-Exit Inspection and Quarantine BureauQingdao, 266001, China
| | - Jichen Han
- Shandong Ji Mo Lao Jiu winemaking companyQingdao, 266200, China
| | - Cuifang Qiu
- Shandong Ji Mo Lao Jiu winemaking companyQingdao, 266200, China
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Geybels MS, Hutter CM, Kwon EM, Ostrander EA, Fu R, Feng Z, Stanford JL, Peters U. Variation in selenoenzyme genes and prostate cancer risk and survival. Prostate 2013; 73:734-42. [PMID: 23143801 PMCID: PMC3859305 DOI: 10.1002/pros.22617] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2012] [Accepted: 10/15/2012] [Indexed: 12/28/2022]
Abstract
BACKGROUND While several studies showed that selenium may prevent prostate cancer (PCa), few studies have evaluated variation in selenoenzyme genes in relation to PCa risk and survival. METHODS We studied common variants in seven selenoenzymes genes in relation to risk of PCa and PCa-specific mortality (PCSM). In a population-based case-control study of men of European ancestry (1,309 cases, 1,266 controls), we evaluated 35 common, tagging single nucleotide polymorphisms (SNPs) in GPX1 (n = 2), GPX2 (n = 4), GPX3 (n = 6), GPX4 (n = 6), SEP15 (n = 4), SEPP1 (n = 6), and TXNRD1 (n = 7) in relation to PCa risk, and among cases, associations between these variants and risk of PCSM. We used logistic regression and Cox proportional hazards regression to estimate the relative risk of PCa and PCSM, respectively. RESULTS Of the SNPs examined, only GPX1 rs3448 was associated with overall PCa risk with an odds ratio of 0.62 for TT versus CC (95% confidence interval, 0.44-0.88). SNPs in GPX2, GPX3, GPX4, SEP15, and SEPP1 had different risk estimates for PCa in subgroups based on stage and grade. We observed associations between SNPs in GPX4, and TXNRD1 and risk of PCSM. None of these associations, however, remained significant after adjustment for multiple comparisons. CONCLUSIONS We found evidence that genetic variation in a subset of selenoenzyme genes may alter risk of PCa and PCSM. These results need validation in additional subsets.
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Affiliation(s)
- Milan S Geybels
- Department of Epidemiology, GROW School for Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands
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Is selenium a potential treatment for cancer metastasis? Nutrients 2013; 5:1149-68. [PMID: 23567478 PMCID: PMC3705340 DOI: 10.3390/nu5041149] [Citation(s) in RCA: 83] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Revised: 03/21/2013] [Accepted: 03/22/2013] [Indexed: 12/01/2022] Open
Abstract
Selenium (Se) is an essential micronutrient that functions as a redox gatekeeper through its incorporation into proteins to alleviate oxidative stress in cells. Although the epidemiological data are somewhat controversial, the results of many studies suggest that inorganic and organic forms of Se negatively affect cancer progression, and that several selenoproteins, such as GPXs, also play important roles in tumor development. Recently, a few scientists have examined the relationship between Se and metastasis, a late event in cancer progression, and have evaluated the potential of Se as an anti-angiogenesis or anti-metastasis agent. In this review, we present the current knowledge about Se compounds and selenoproteins, and their effects on the development of metastasis, with an emphasis on cell migration, invasion, and angiogenesis. In the cancers of breast, prostate, colorectal, fibrosarcoma, melanoma, liver, lung, oral squamous cell carcinoma, and brain glioma, there is either clinical evidence linking selenoproteins, such as thioredoxin reductase-1 to lymph node metastasis; in vitro studies indicating that Se compounds and selenoproteins inhibited cell motility, migration, and invasion, and reduced angiogenic factors in some of these cancer cells; or animal studies showing that Se supplementation resulted in reduced microvessel density and metastasis. Together, these data support the notion that Se may be an anti-metastastatic element in addition to being a cancer preventative agent.
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Rusolo F, Pucci B, Colonna G, Capone F, Guerriero E, Milone MR, Nazzaro M, Volpe MG, Di Bernardo G, Castello G, Costantini S. Evaluation of selenite effects on selenoproteins and cytokinome in human hepatoma cell lines. Molecules 2013; 18:2549-62. [PMID: 23442931 PMCID: PMC6270443 DOI: 10.3390/molecules18032549] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Revised: 02/19/2013] [Accepted: 02/19/2013] [Indexed: 12/18/2022] Open
Abstract
The need to explore new alternative therapeutic strategies and chemoprevention methods for hepatocellular carcinoma is growing significantly. Selenium is a trace element that plays a critical role in physiological processes, and is used in cancer chemoprevention. The aim of this work was to test in vitro the effect of sodium selenite on the human hepatoma cell lines, HepG2 and Huh7, to assess its effect on the expression of GPX1, SELK and SELENBP1 and also to evaluate its action on inflammation determinants such as cytokines. Our results show that: (i) the increase observed for the GPX1 and SELK expression is correlated with an increase in the sodium selenite concentration, also evidencing an inverse association between the levels of these two proteins and SELENBP1; (ii) the selenium concentrations evaluated in protein extracts increase in proportional way with the selenite concentrations used in the treatment, suggesting that other selenoproteins can also be modulated and should be evaluated in further studies, and (iii) some cytokines, VEGF and three pro-inflammatory cytokines, i.e., IL-6, IL-8, and IL-17, decreased with an increasing selenite concentration. Finally, interactomic studies show that GPX1 and SELK, and the four pro-inflammatory cytokines are functionally correlated evidencing a putative anti-inflammatory role for the selenite.
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Affiliation(s)
- Fabiola Rusolo
- Cancer Research Center, “Pascale Foundation” National Cancer Institute, Mercogliano (AV) 83013, Italy
| | - Biagio Pucci
- Cancer Research Center, “Pascale Foundation” National Cancer Institute, Mercogliano (AV) 83013, Italy
| | - Giovanni Colonna
- Biochemistry, Biophysic and General Pathology Department, Second University of Naples, Naples 80138, Italy
| | - Francesca Capone
- Cancer Research Center, “Pascale Foundation” National Cancer Institute, Mercogliano (AV) 83013, Italy
| | - Eliana Guerriero
- Cancer Research Center, “Pascale Foundation” National Cancer Institute, Mercogliano (AV) 83013, Italy
| | - Maria Rita Milone
- Cancer Research Center, “Pascale Foundation” National Cancer Institute, Mercogliano (AV) 83013, Italy
| | | | | | - Gianni Di Bernardo
- Department of Experimental Medicine, Section of Biotechnology and Molecular Biology, Faculty of Medicine, Second University of Naples, Naples 80138, Italy
| | - Giuseppe Castello
- Cancer Research Center, “Pascale Foundation” National Cancer Institute, Mercogliano (AV) 83013, Italy
| | - Susan Costantini
- Cancer Research Center, “Pascale Foundation” National Cancer Institute, Mercogliano (AV) 83013, Italy
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +39-0825-1911-729, Fax: +39-0825-1911-705
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Lund EK. Health benefits of seafood; is it just the fatty acids? Food Chem 2013; 140:413-20. [PMID: 23601384 DOI: 10.1016/j.foodchem.2013.01.034] [Citation(s) in RCA: 118] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2011] [Revised: 12/02/2012] [Accepted: 01/05/2013] [Indexed: 12/20/2022]
Abstract
There is a considerable body of literature suggesting a wide range of health benefits associated with diets high in seafood. However, the demand for seafood across the world now exceeds that available from capture fisheries. This has created a rapidly increasing market for aquaculture products, the nutrient composition of which is dependent on feed composition. The use of fishmeal in this food chain does little to counteract the environmental impact of fisheries and so the on-going development of alternative sources is to be welcomed. Nevertheless, an in-depth understanding as to which nutrients in seafood provide benefit is required to permit the production of foods of maximal health benefit to humans. This paper reviews our current knowledge of the beneficial nutrient composition of seafood, in particular omega-3 fatty acids, selenium, taurine, vitamins D and B12, in the context of the development of environmentally sustainable aquaculture.
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