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Coimbra JLP, Campolina-Silva G, Lair DF, Guimarães-Ervilha LO, Souza ACF, Oliveira CA, Costa GMJ, Machado-Neves M. Subchronic intake of arsenic at environmentally relevant concentrations causes histological lesions and oxidative stress in the prostate of adult Wistar rats. Reprod Toxicol 2024; 128:108647. [PMID: 38909693 DOI: 10.1016/j.reprotox.2024.108647] [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: 02/08/2024] [Revised: 05/30/2024] [Accepted: 06/15/2024] [Indexed: 06/25/2024]
Abstract
The prostate gland is one of the main sites of hyperplasia and cancer in elderly men. Numerous factors have been demonstrated to disrupt prostate homeostasis, including exposure to environmental pollutants. Arsenic is a metalloid found ubiquitously in soil, air, and water, which favors human poisoning through the involuntary intake of contaminated drinking water and food and has harmful effects by increasing the oxidative stress response. This study aimed to investigate the effects of prolonged exposure to arsenic at environmentally relevant concentrations on the prostate biology of adult Wistar rats. Thirty 80-day-old male rats were divided into three experimental groups. Rats from the control group received filtered water, whereas animals from the arsenic groups ingested 1 mg L-1 and 10 mg L-1 of arsenic, in the form of sodium arsenite, daily. The arsenic solutions were provided ad libitum in the drinking water for eight weeks. Our results showed that 1 mg L-1 and 10 mg L-1 of arsenic made the prostate susceptible to evolving benign and premalignant histopathological changes. While the ingestion of 1 mg L-1 of arsenic reduced SOD activity only, 10 mg L-1 diminished SOD and CAT activity in the prostate tissue, culminating in high MDA production. These doses, however, did not affect the intraprostatic levels of DHT and estradiol. In conclusion, exposure to arsenic at environmentally relevant concentrations through drinking water induces histological and oxidative stress-related changes in the prostate of adult rats, strengthening the between arsenic exposure and prostate disorders.
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Affiliation(s)
- John L P Coimbra
- Department of Morphology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil; Department of General Biology, Universidade Federal de Viçosa, Viçosa, MG, Brazil.
| | - Gabriel Campolina-Silva
- Department of Obstetrics, Gynecology, and Reproduction, Université Laval, Québec, QC, Canada; CHU de Quebec Research Center, Université Laval, Québec, QC, Canada
| | - Daniel F Lair
- Department of Morphology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | | | - Ana C F Souza
- Department of Animal Biology, Universidade Federal Rural do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Cleida A Oliveira
- Department of Morphology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Guilherme M J Costa
- Department of Morphology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
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Li H, Fan X, Ding X, Zhang QY. Tissue-, Region-, and Gene-Specific Induction of Microsomal Epoxide Hydrolase Expression and Activity in the Mouse Intestine by Arsenic in Drinking Water. Drug Metab Dispos 2024; 52:681-689. [PMID: 38719743 PMCID: PMC11185820 DOI: 10.1124/dmd.124.001720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Accepted: 04/30/2024] [Indexed: 06/19/2024] Open
Abstract
This study aimed to characterize the effects of arsenic exposure on the expression of microsomal epoxide hydrolase (mEH or EPHX1) and soluble epoxide hydrolase (sEH or EPHX2) in the liver and small intestine. C57BL/6 mice were exposed to sodium arsenite in drinking water at various doses for up to 28 days. Intestinal, but not hepatic, mEH mRNA and protein expression was induced by arsenic at 25 ppm, in both males and females, whereas hepatic mEH expression was induced by arsenic at 50 or 100 ppm. The induction of mEH was gene specific, as the arsenic exposure did not induce sEH expression in either tissue. Within the small intestine, mEH expression was induced only in the proximal, but not the distal segments. The induction of intestinal mEH was accompanied by increases in microsomal enzymatic activities toward a model mEH substrate, cis-stilbene oxide, and an epoxide-containing drug, oprozomib, in vitro, and by increases in the levels of PR-176, the main hydrolysis metabolite of oprozomib, in the proximal small intestine of oprozomib-treated mice. These findings suggest that intestinal mEH, playing a major role in converting xenobiotic epoxides to less reactive diols, but not sEH, preferring endogenous epoxides as substrates, is relevant to the adverse effects of arsenic exposure, and that further studies of the interactions between drinking water arsenic exposure and the disposition or possible adverse effects of epoxide-containing drugs and other xenobiotic compounds in the intestine are warranted. SIGNIFICANCE STATEMENT: Consumption of arsenic-contaminated water has been associated with increased risks of various adverse health effects, such as diabetes, in humans. The small intestinal epithelial cells are the main site of absorption of ingested arsenic, but they are not well characterized for arsenic exposure-related changes. This study identified gene expression changes in the small intestine that may be mechanistically linked to the adverse effects of arsenic exposure and possible interactions between arsenic ingestion and the pharmacokinetics of epoxide-containing drugs in vivo.
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Affiliation(s)
- Hui Li
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Arizona, Tucson, Arizona
| | - Xiaoyu Fan
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Arizona, Tucson, Arizona
| | - Xinxin Ding
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Arizona, Tucson, Arizona
| | - Qing-Yu Zhang
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Arizona, Tucson, Arizona
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Mercan S, Kilic MD, Zengin S, Yayla M. Experimental study for inorganic and organic profiling of toy makeup products: Estimating the potential threat to child health. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:33975-33992. [PMID: 38696006 PMCID: PMC11136717 DOI: 10.1007/s11356-024-33362-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 04/12/2024] [Indexed: 05/31/2024]
Abstract
Inorganic elements are added to toys as impurities to give desired stability, brightness, flexibility, and color; however, these elements may cause numerous health issues after acute or chronic exposure. In this study, the inorganic profile of 14 elements (Al, As, Ba, Cd, Co, Cr, Cu, Hg, Mn, Ni, Se, Sb, Pb, and Zn) in 63 toy makeup products was identified by inductively coupled plasma-mass spectrometry after microwave acid digestion method. Additionally, organic allergen fragrance was investigated by gas chromatography-mass spectrometry. The systemic exposure dosage (SED), margin of safety (MoS), lifetime cancer risk (LCR), hazard quotient (HQ), and hazard indices were used to assess the safety evaluation. Then, 57 out of 63 samples (90.48%) exceeded the limits at least for one toxic element with descending order Ni > Cr > Co > Pb > Sb > Cd > As > Hg. The SED values were compared with tolerable daily intake values and remarkably differences were found for Al and Pb. The MoS values for 57.15% of samples exceeded the limit value for Al, As, Cd, Co, Hg, Mn, Sb, and Zn elements. The LCR values were observed at 100% (n = 63), 79.37% (n = 50), 85.71% (n = 54), 77.78% (n = 49), and 18.87% (n = 10) for Cr, Ni, As, Pb, and Cd, respectively. Also, the skin sensitization risks were obtained for Cr and Ni at 26.980% (n = 17) and 9.52% (n = 6), respectively. The HQ values for 80% of samples were found to be ≥ 1 at least for one parameter. The investigation of fragrance allergens in samples did not show any significant ingredients. As a result, toy makeup products marketed in local stores were found to be predominantly unsafe. Children should be protected from harmful chemicals by regular monitoring and strict measures.
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Affiliation(s)
- Selda Mercan
- Institute of Forensic Sciences and Legal Medicine, Department of Science, Istanbul University- Cerrahpasa, 34500, Buyukcekmece, Istanbul, Turkey.
| | - Mihriban Dilan Kilic
- Institute of Forensic Sciences and Legal Medicine, Department of Science, Istanbul University- Cerrahpasa, 34500, Buyukcekmece, Istanbul, Turkey
| | - Simge Zengin
- Institute of Forensic Sciences and Legal Medicine, Department of Science, Istanbul University- Cerrahpasa, 34500, Buyukcekmece, Istanbul, Turkey
| | - Murat Yayla
- Institute of Forensic Sciences and Legal Medicine, Department of Science, Istanbul University- Cerrahpasa, 34500, Buyukcekmece, Istanbul, Turkey
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Chen L, Zhao Z, Diarimalala RO, Chen Z, Wang Y, Zhan T, Zhao Y, Ma C, Wang X, Zhao C, Xiao Z, Hu K, Wu P. Tris-Functionalized Polyoxotungstovanadate-Mediated Antitumor Efficacy Involves Multiple Cell Death Pathways. Chem Biodivers 2024; 21:e202301898. [PMID: 38369765 DOI: 10.1002/cbdv.202301898] [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: 11/28/2023] [Revised: 12/27/2023] [Accepted: 02/17/2024] [Indexed: 02/20/2024]
Abstract
Polyoxometalates (POMs) are promising inorganic drug candidates for cancer chemotherapy. They are becoming attractive because of their easy accessibility and low cost. Herein, we report the synthesis and antitumor activity studies of four Lindqvist-type POMs with mixed-addenda atoms Na2[V4W2O16{(OCH2)3CR}] (R=-CH2OH, -CH3, -CH2CH3) and (Bu4N)2[V3W3{(OCH2)3CH2OOCCH2CH3}]. Compared with the current clinical applied antitumor drug 5-fluorouracil (5-FU) or Gemcitabine, analysis of MTT/CCK-8 assay, colony formation and wound healing assay revealed that the {V4W2} POMs had acceptable cytotoxicity in normal cells (293T) and significant inhibitory effects on cell proliferation and migration in three human tumor cell lines: human lung carcinoma cells (A549), human cervical carcinoma cells (HeLa), and human breast cancer cells (MCF-7). Interestingly, among the POMs analyzed, the therapeutic index (TI) of the {V4W2} POM with R= -CH2OH was relatively the most satisfactory. Thus, it was subsequently used for further studies. Flow cytometry analysis showed it prompted cellular apoptosis rate. qRT-PCR and Western blotting analysis indicated that multiple cell death pathways were activated including apoptosis, autophagy, necroptosis and pyroptosis during the POM-mediated antitumor process. In conclusion, our study shows that the polyoxotungstovanadate has great potential to be developed into a broad-spectrum antitumor chemotherapeutic drug.
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Affiliation(s)
- Lihong Chen
- Institute of POM-based Materials, New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan, 430068, Hubei, PR China
| | - Zijia Zhao
- Sino-German Biomedical Center, Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), Hubei University of Technology, Wuhan, 430068, Hubei, PR China
| | - Rominah Onintsoa Diarimalala
- Sino-German Biomedical Center, Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), Hubei University of Technology, Wuhan, 430068, Hubei, PR China
| | - Zhongwei Chen
- Sino-German Biomedical Center, Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), Hubei University of Technology, Wuhan, 430068, Hubei, PR China
| | - Yu Wang
- Institute of POM-based Materials, New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan, 430068, Hubei, PR China
| | - Taozhu Zhan
- Institute of POM-based Materials, New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan, 430068, Hubei, PR China
| | - Yanchao Zhao
- Institute of POM-based Materials, New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan, 430068, Hubei, PR China
| | - Chunhui Ma
- Institute of POM-based Materials, New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan, 430068, Hubei, PR China
| | - Xingyue Wang
- Institute of POM-based Materials, New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan, 430068, Hubei, PR China
| | - Chenqi Zhao
- Institute of POM-based Materials, New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan, 430068, Hubei, PR China
| | - Zicheng Xiao
- Institute of POM-based Materials, New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan, 430068, Hubei, PR China
| | - Kanghong Hu
- Sino-German Biomedical Center, Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), Hubei University of Technology, Wuhan, 430068, Hubei, PR China
| | - Pingfan Wu
- Institute of POM-based Materials, New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan, 430068, Hubei, PR China
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Chang J, Yan S, Geng Z, Wang Z. Inhibition of splicing factors SF3A3 and SRSF5 contributes to As 3+/Se 4+ combination-mediated proliferation suppression and apoptosis induction in acute promyelocytic leukemia cells. Arch Biochem Biophys 2023; 743:109677. [PMID: 37356608 DOI: 10.1016/j.abb.2023.109677] [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: 04/17/2023] [Revised: 05/28/2023] [Accepted: 06/22/2023] [Indexed: 06/27/2023]
Abstract
The low-dose combination of Arsenite (As3+) and selenite (Se4+) has the advantages of lower biological toxicity and better curative effects for acute promyelocytic leukemia (APL) therapy. However, the underlying mechanisms remain unclear. Here, based on the fact that the combination of 2 μM A3+ plus 4 μM Se4+ possessed a stronger anti-leukemic effect on APL cell line NB4 as compared with each individual, we employed iTRAQ-based quantitative proteomics to identify a total of 58 proteins that were differentially expressed after treatment with As3+/Se4+ combination rather than As3+ or Se4+ alone, the majority of which were involved in spliceosome pathway. Among them, eight proteins stood out by virtue of their splicing function and significant changes. They were validated as being decreased in mRNA and protein levels under As3+/Se4+ combination treatment. Further functional studies showed that only knockdown of two splicing factors, SF3A3 and SRSF5, suppressed the growth of NB4 cells. The reduction of SF3A3 was found to cause G1/S cell cycle arrest, which resulted in proliferation inhibition. Moreover, SRSF5 downregulation induced cell apoptosis through the activation of caspase-3. Taken together, these findings indicate that SF3A3 and SRSF5 function as pro-leukemic factors and can be potential novel therapeutic targets for APL.
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Affiliation(s)
- Jiayin Chang
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, PR China
| | - Shihai Yan
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, PR China
| | - Zhirong Geng
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210046, PR China.
| | - Zhilin Wang
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, PR China.
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Abstract
In recent times Gallbladder cancer (GBC) incidences increased many folds in India and are being reported from arsenic hotspots identified in Bihar. The study aims to establish association between arsenic exposure and gallbladder carcinogenesis. In the present study, n = 200 were control volunteers and n = 152 confirmed gallbladder cancer cases. The studied GBC patient's biological samples-gallbladder tissue, gallbladder stone, bile, blood and hair samples were collected for arsenic estimation. Moreover, n = 512 gallbladder cancer patients blood samples were also evaluated for the presence of arsenic to understand exposure level in the population. A significantly high arsenic concentration (p < 0.05) was detected in the blood samples with maximum concentration 389 µg/L in GBC cases in comparison to control. Similarly, in the gallbladder cancer patients, there was significantly high arsenic concentration observed in gallbladder tissue with highest concentration of 2166 µg/kg, in gallbladder stones 635 µg/kg, in bile samples 483 µg/L and in hair samples 6980 µg/kg respectively. Moreover, the n = 512 gallbladder cancer patient's blood samples study revealed very significant arsenic concentration in the population of Bihar with maximum arsenic concentration as 746 µg/L. The raised arsenic concentration in the gallbladder cancer patients' biological samples-gallbladder tissue, gallbladder stone, bile, blood, and hair samples was significantly very high in the arsenic exposed area. The study denotes that the gallbladder disease burden is very high in the arsenic exposed area of Bihar. The findings do provide a strong link between arsenic contamination and increased gallbladder carcinogenesis.
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Nail AN, Ferragut Cardoso AP, Montero LK, States JC. miRNAs and arsenic-induced carcinogenesis. ADVANCES IN PHARMACOLOGY (SAN DIEGO, CALIF.) 2023; 96:203-240. [PMID: 36858773 PMCID: PMC10184182 DOI: 10.1016/bs.apha.2022.10.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Arsenic-induced carcinogenesis is a worldwide health problem. Identifying the molecular mechanisms responsible for the induction of arsenic-induced cancers is important for developing treatment strategies. MicroRNA (miRNA) dysregulation is known to affect development and progression of human cancer. Several studies have identified an association between altered miRNA expression in cancers from individuals chronically exposed to arsenic and in cell models for arsenic-induced carcinogenesis. This chapter provides a comprehensive review for miRNA dysregulation in arsenic-induced cancer.
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Affiliation(s)
- Alexandra N Nail
- Department of Pharmacology and Toxicology, Center for Integrative Environmental Health Science, University of Louisville, Louisville, KY, United States
| | - Ana P Ferragut Cardoso
- Department of Pharmacology and Toxicology, Center for Integrative Environmental Health Science, University of Louisville, Louisville, KY, United States
| | - Lakyn K Montero
- Department of Pharmacology and Toxicology, Center for Integrative Environmental Health Science, University of Louisville, Louisville, KY, United States
| | - J Christopher States
- Department of Pharmacology and Toxicology, Center for Integrative Environmental Health Science, University of Louisville, Louisville, KY, United States.
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Kang HG, Jeong PS, Kim MJ, Joo YE, Gwon MA, Jeon SB, Song BS, Kim SU, Lee S, Sim BW. Arsenic exposure during porcine oocyte maturation negatively affects embryonic development by triggering oxidative stress-induced mitochondrial dysfunction and apoptosis. Toxicology 2022; 480:153314. [PMID: 36084880 DOI: 10.1016/j.tox.2022.153314] [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: 06/06/2022] [Revised: 08/16/2022] [Accepted: 09/04/2022] [Indexed: 11/15/2022]
Abstract
Arsenic (AS), an environmental contaminant, is a known human carcinogen that can cause cancer of the lung, liver, and skin. Furthermore, AS induces oxidative stress and mitochondrial impairments in mammalian cells. However, limited information is available on the effect of AS exposure on oocyte maturation of porcine, whose anatomy, physiology, and metabolism are similar to those of human. Therefore, we examined the effect of AS exposure on the in vitro maturation (IVM) of porcine oocytes and the possible underlying mechanisms. Cumulus-cell enclosed oocytes were cultured with or without AS for maturation, and then were used for analyses. This study indicated that AS under a concentration of 1 μM significantly increased the abnormal expansion of cumulus cells and the number of oocytes maintained in meiotic arrest. In addition, AS exposure significantly reduced subsequent development of embryos and increased the rate of apoptosis of blastocysts following parthenogenetic activation (PA) and in vitro fertilization (IVF). Moreover, AS exposure induced oxidative stress with increased reactive oxygen species (ROS), and decreased glutathione (GSH), leading to reduced mitochondrial membrane potential, mitochondrial quantity, DNA damage, excessive autophagy activity, and early apoptosis in porcine oocytes. Taken together, the results demonstrated that AS exposure exerts several negative effects, such as meiotic defects and embryo developmental arrest by causing mitochondrial dysfunction and apoptosis via inducing oxidative stress.
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Affiliation(s)
- Hyo-Gu Kang
- Futuristic Animal Resource & Research Center, Korea Research Institute of Bioscience and Biotechnology, Chungcheongbuk-do 28116, South Korea; Laboratory of Animal Reproduction and Physiology, Department of Animal Science and Biotechnology, College of Agriculture and Life Science, Chungnam National University, Daejeon 34134, Korea
| | - Pil-Soo Jeong
- Futuristic Animal Resource & Research Center, Korea Research Institute of Bioscience and Biotechnology, Chungcheongbuk-do 28116, South Korea
| | - Min Ju Kim
- Futuristic Animal Resource & Research Center, Korea Research Institute of Bioscience and Biotechnology, Chungcheongbuk-do 28116, South Korea
| | - Ye Eun Joo
- Futuristic Animal Resource & Research Center, Korea Research Institute of Bioscience and Biotechnology, Chungcheongbuk-do 28116, South Korea
| | - Min-Ah Gwon
- Futuristic Animal Resource & Research Center, Korea Research Institute of Bioscience and Biotechnology, Chungcheongbuk-do 28116, South Korea
| | - Se-Been Jeon
- Futuristic Animal Resource & Research Center, Korea Research Institute of Bioscience and Biotechnology, Chungcheongbuk-do 28116, South Korea
| | - Bong-Seok Song
- Futuristic Animal Resource & Research Center, Korea Research Institute of Bioscience and Biotechnology, Chungcheongbuk-do 28116, South Korea
| | - Sun-Uk Kim
- Futuristic Animal Resource & Research Center, Korea Research Institute of Bioscience and Biotechnology, Chungcheongbuk-do 28116, South Korea; Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon 34113, South Korea
| | - Sanghoon Lee
- Futuristic Animal Resource & Research Center, Korea Research Institute of Bioscience and Biotechnology, Chungcheongbuk-do 28116, South Korea; Laboratory of Theriogenology, College of Veterinary Medicine, Chungnam National University, Daejeon 34134, South Korea.
| | - Bo-Woong Sim
- Futuristic Animal Resource & Research Center, Korea Research Institute of Bioscience and Biotechnology, Chungcheongbuk-do 28116, South Korea.
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Treas J, Roy P, Singh KP. Chronic coexposure to arsenic and estrogen potentiates genotoxic estrogen metabolic pathway and hypermethylation of DNA glycosylase MBD4 in human prostate epithelial cells. Prostate 2022; 82:1273-1283. [PMID: 35747940 DOI: 10.1002/pros.24401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 05/14/2022] [Accepted: 06/01/2022] [Indexed: 11/10/2022]
Abstract
BACKGROUND Previously we reported that arsenic and estrogen cause synergistic effects in the neoplastic transformation of human prostate epithelial cells. In addition to receptor-mediated pathways, DNA-reactive estrogen metabolites have also been shown to play a critical role in mutagenicity and carcinogenicity. Both estrogen and arsenic are known prostate carcinogens, however, the effect of coexposure to these two chemicals on genes involved in estrogen metabolism is not known. Therefore, the objective of this study was to evaluate the role of arsenic and estrogen coexposure on the expression of estrogen receptors and estrogen metabolism-associated genes. Earlier, we also reported the synergistic effect of arsenic and estrogen on decreased expression of MBD4 genes that play an important role in DNA repair through its DNA glycosylase activity. To further understand the mechanism, the promoter methylation of this gene was also analyzed. METHODS Total RNA and protein were isolated from RWPE-1 human prostate epithelial cells that were coexposed to arsenic and estrogen for a chronic duration (6 months). The expression of estrogen receptors, estrogen metabolism associated phase I genes (CYP 1A1, 1A2, 3A4, and 1B1) and phase II gene catechol-O-methyltransferase (COMT), as well as antioxidant MnSOD, were analyzed either at the RNA level by quantitative reverse transcriptase-polymerase chain reaction or at the protein level by western blot. Promoter methylation of MBD4 was analyzed by pyrosequencing. RESULTS Expression of MnSOD and phase I genes that convert E2 into genotoxic metabolites 2-OH-E2 and 4-OH-E2 were significantly increased, whereas the expression of phase II gene COMT that detoxifies estrogen metabolites was significantly decreased in arsenic and estrogen coexposed cells. MBD4 promoter was hypermethylated in arsenic and estrogen coexposed cells. Coexposure to arsenic and estrogen has synergistic effects on the expression of these genes as well as in MBD4 promoter hypermethylation. CONCLUSIONS These novel findings suggest that coexposure to arsenic and estrogen acts synergistically in the activation of not only the estrogen receptors but also the genes associated with genotoxic estrogen metabolism and epigenetic inactivation of DNA glycosylase MBD4. Together, these genetic and epigenetic aberrations provide the molecular basis for the potentiation of carcinogenicity of arsenic and estrogen coexposure in prostate epithelial cells.
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Affiliation(s)
- Justin Treas
- Department of Internal Medicine, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Priti Roy
- Department of Internal Medicine, University of California San Francisco, San Francisco, California, USA
| | - Kamaleshwar P Singh
- Department of Environmental Toxicology, The Institute of Environmental and Human Health (TIEHH), Texas Tech University, Lubbock, Texas, USA
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Islam Z, Islam J, Tony SR, Anjum A, Ferdous R, Roy AK, Hossain S, Salam KA, Nikkon F, Hossain K, Saud ZA. Mulberry leaves juice attenuates arsenic-induced neurobehavioral and hepatic disorders in mice. Food Sci Nutr 2022; 10:4360-4370. [PMID: 36514774 PMCID: PMC9731539 DOI: 10.1002/fsn3.3028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 07/15/2022] [Accepted: 07/27/2022] [Indexed: 12/16/2022] Open
Abstract
Arsenic (As) poisoning has caused an environmental catastrophe in Bangladesh as millions of people are exposed to As-contaminated drinking water. Chronic As-exposure causes depression, memory impairment, and liver injury in experimental animals. This study was carried out to assess the protective effect of mulberry leaves juice (Mul) against As-induced neurobehavioral and hepatic dysfunctions in Swiss albino mice. As-exposed mice spent significantly reduced time in open arms and increased time spent in closed arms in the elevated plus maze (EPM) test, whereas they took significantly longer time to find the hidden platform in the Morris water maze (MWM) test and spent significantly less time in the desired quadrant when compared to the control mice. A significant reduction in serum BChE activity, an indicator of As-induced neurotoxicity-associated behavioral changes, was noted in As-exposed mice compared to control mice. Supplementation of Mul to As-exposed mice significantly increased serum BChE activity, increased the time spent in open arms and reduced time latency to find the hidden platform, and stayed more time in the target quadrant in EPM and MWM tests, respectively, compared to As-exposed-only mice. Also, a significantly reduced activity of BChE, AChE, SOD, and GSH in brain, and elevated ALP, AST, and ALT activities in serum were noted in As-exposed mice when compared to control mice. Mul supplementation significantly restored the activity of these enzymes and also recovered As-induced alterations in hepatic tissue in As-exposed mice. In conclusion, this study suggested that mulberry leaves juice attenuates As-induced neurobehavioral and hepatic dysfunction in mice.
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Affiliation(s)
- Zohurul Islam
- Department of Biochemistry and Molecular BiologyUniversity of RajshahiRajshahiBangladesh
| | - Jahidul Islam
- Department of Biochemistry and Molecular BiologyUniversity of RajshahiRajshahiBangladesh
| | - Selim Reza Tony
- Department of Biochemistry and Molecular BiologyUniversity of RajshahiRajshahiBangladesh
| | - Adiba Anjum
- Department of Biochemistry and Molecular BiologyUniversity of RajshahiRajshahiBangladesh,Department of Biochemistry and Molecular BiologyMawlana Bhashani Science and Technology UniversityTangailBangladesh
| | - Rafia Ferdous
- Department of PharmacyUniversity of RajshahiRajshahiBangladesh
| | - Apurba Kumar Roy
- Department of Genetic Engineering & BiotechnologyUniversity of RajshahiRajshahiBangladesh
| | - Shakhawoat Hossain
- Department of Biochemistry and Molecular BiologyUniversity of RajshahiRajshahiBangladesh
| | - Kazi Abdus Salam
- Department of Biochemistry and Molecular BiologyUniversity of RajshahiRajshahiBangladesh
| | - Farjana Nikkon
- Department of Biochemistry and Molecular BiologyUniversity of RajshahiRajshahiBangladesh
| | - Khaled Hossain
- Department of Biochemistry and Molecular BiologyUniversity of RajshahiRajshahiBangladesh
| | - Zahangir Alam Saud
- Department of Biochemistry and Molecular BiologyUniversity of RajshahiRajshahiBangladesh
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Mourtas S, Papadia K, Kordopati GG, Ioannou PV, Antimisiaris SG, Tsivgoulis GM. Synthesis of Novel Arsonolipids and Development of Novel Arsonoliposome Types. Pharmaceutics 2022; 14:pharmaceutics14081649. [PMID: 36015274 PMCID: PMC9416600 DOI: 10.3390/pharmaceutics14081649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/29/2022] [Accepted: 08/05/2022] [Indexed: 11/16/2022] Open
Abstract
Arsonolipids represent a class of arsenic-containing compounds with interesting biological properties either as monomers or as nanostructure forming components, such as arsonoliposomes that possess selective anticancer activity as proven by in vitro and in vivo studies. In this work, we describe, for the first time, the synthesis of novel arsono-containing lipids where the alkyl groups are connected through stable ether bonds. It is expected that this class of arsonolipids, compared with the corresponding ester linked, will have higher chemical stability. To accomplish this task, a new methodology of general application was developed, where a small arsono compound, 2-hydroxyethylarsonic acid, when protected with thiophenol, can be used in an efficient and simple way as a building block for the synthesis of arsono-containing lipids as well as other arsono-containing biomolecules. Thus, besides the above-mentioned arsonolipid, an arsono cholesterol derivative was also obtained. Both ether arsonolipid and arsono cholesterol were able to form liposomes having similar physicochemical properties and integrity to conventional arsonoliposomes. Furthermore, a preliminary in vitro anticancer potential assessment of the novel ether arsonolipid containing liposomes against human prostate cancer (PC-3) and Lewis lung carcinoma (LLC) cells showed significant activity (dose- and time-dependent), which was similar to that of the conventional arsonoliposomes (studied before). Given the fact that novel arsonolipids may be more stable compared to the ones used in conventional arsonoliposomes, the current results justify further exploitation of the novel compounds by in vitro and in vivo studies.
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Affiliation(s)
- Spyridon Mourtas
- Laboratory of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, University of Patras, 26510 Rio Patras, Greece
- Department of Chemistry, University of Patras, 26510 Rio Patras, Greece
- Correspondence: (S.M.); (G.M.T.)
| | - Konstantina Papadia
- Laboratory of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, University of Patras, 26510 Rio Patras, Greece
| | | | | | - Sophia G. Antimisiaris
- Laboratory of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, University of Patras, 26510 Rio Patras, Greece
- Institute of Chemical Engineering Sciences, Foundation for Research and Technology Hellas (FORTH/ICES), 26504 Rio Patras, Greece
| | - Gerasimos M. Tsivgoulis
- Department of Chemistry, University of Patras, 26510 Rio Patras, Greece
- Correspondence: (S.M.); (G.M.T.)
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12
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López YC, Ortega GA, Reguera E. Hazardous ions decontamination: From the element to the material. CHEMICAL ENGINEERING JOURNAL ADVANCES 2022. [DOI: 10.1016/j.ceja.2022.100297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
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13
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Zhao L, Wang YF, Liu J, Jiang BH, Liu LZ. Human endothelial cells promote arsenic-transformed lung epithelial cells to induce tumor growth and angiogenesis through interleukin-8 induction. Aging (Albany NY) 2022; 14:2113-2130. [PMID: 35241635 PMCID: PMC8954972 DOI: 10.18632/aging.203930] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 01/29/2022] [Indexed: 11/25/2022]
Abstract
Arsenic exposure is associated with lung cancer. Angiogenesis is essential for tumor development. However, the role and mechanism of human vascular endothelial cells in tumor growth and angiogenesis induced by arsenic-transformed bronchial epithelial (As-T) cells remain to be elucidated. In this study, we found that endothelial cells significantly increased As-T cell-induced tumor growth compared to those induced by As-T cells alone. To understand the molecular mechanism, we found that endothelial cells co-cultured with As-T cells or cultured in conditioned medium (CM) prepared from As-T cells showed much higher cell migration, proliferation, and tube formation compared to those co-cultured with BEAS-2B (B2B) cells or cultured in CM from B2B. We identified that higher levels of intracellular interleukin 8 (IL-8) were secreted by As-T cells, which activated IL-8/IL-8R signaling to promote endothelial cells migration and tube formation. IL-8 silencing and knockout (KO) in As-T cells, or IL-8 neutralizing antibody dramatically suppressed endothelial cell proliferation, migration, tube formation in vitro, and tumor growth and angiogenesis in vivo, suggesting a key role of IL-8 in As-T cells to induce angiogenesis via a paracrine effect. Finally, blocking of IL-8 receptors C-X-C chemokine receptor type 1 (CXCR1) and CXCR2 with neutralizing antibodies and chemical inhibitors inhibited tube formation, indicating that IL-8Rs on endothelial cells are necessary for As-T cell-induced angiogenesis. Overall, this study reveals an important molecular mechanism of arsenic-induced carcinogenesis, and suggests a new option to prevent and treat arsenic-induced angiogenesis.
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Affiliation(s)
- Lei Zhao
- Department of Medical Oncology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Yi-Fang Wang
- Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Jie Liu
- Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Bing-Hua Jiang
- Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Ling-Zhi Liu
- Department of Medical Oncology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA
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14
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Environmental and Lifestyle Risk Factors in the Carcinogenesis of Gallbladder Cancer. J Pers Med 2022; 12:jpm12020234. [PMID: 35207722 PMCID: PMC8877116 DOI: 10.3390/jpm12020234] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 11/08/2021] [Accepted: 12/23/2021] [Indexed: 02/01/2023] Open
Abstract
Gallbladder cancer (GBC) is an aggressive neoplasm that in an early stage is generally asymptomatic and, in most cases, is diagnosed in advanced stages with a very low life expectancy because there is no curative treatment. Therefore, understanding the early carcinogenic mechanisms of this pathology is crucial to proposing preventive strategies for this cancer. The main risk factor is the presence of gallstones, which are associated with some environmental factors such as a sedentary lifestyle and a high-fat diet. Other risk factors such as autoimmune disorders and bacterial, parasitic and fungal infections have also been described. All these factors can generate a long-term inflammatory state characterized by the persistent activation of the immune system, the frequent release of pro-inflammatory cytokines, and the constant production of reactive oxygen species that result in a chronic damage/repair cycle, subsequently inducing the loss of the normal architecture of the gallbladder mucosa that leads to the development of GBC. This review addresses how the different risk factors could promote a chronic inflammatory state essential to the development of gallbladder carcinogenesis, which will make it possible to define some strategies such as anti-inflammatory drugs or public health proposals in the prevention of GBC.
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15
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Malik S, Prasad S, Kishore S, Kumar A, Upadhyay V. A perspective review on impact and molecular mechanism of environmental carcinogens on human health. Biotechnol Genet Eng Rev 2021; 37:178-207. [PMID: 34672914 DOI: 10.1080/02648725.2021.1991715] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Cancer is one of the leading causes of death all around the world. It is a group of diseases characterized by abnormal and uncontrollable division of cells leading to severe health conditions and fatality if remains undiagnosed till later stages. Cancer can be caused due to mutation or sudden alterations by effect of certain external agents. Agents that can cause sudden alterations in the genetic content of an individual are known as mutagens. Mutations can lead to permanent changes in the genetic constituency of an individual and possibly lead to cancer. Mutagenic agents that possess the capacity to induce cancer in humans are called carcinogens. Carcinogens may be naturally present in the environment or generated by anthropogenic activities. However, with the progress in molecular techniques, genetic and/or epigenetic mechanisms of carcinogenesis of a wide range of carcinogens have been elucidated. Present review aims to discuss different types of environmental carcinogens and their respective mechanisms responsible for inducing cancer in humans.
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Affiliation(s)
- Sumira Malik
- Amity Institute of Biotechnology, Amity University Jharkhand, Ranchi, India
| | - Shilpa Prasad
- Amity Institute of Biotechnology, Amity University Jharkhand, Ranchi, India
| | - Shristi Kishore
- Amity Institute of Biotechnology, Amity University Jharkhand, Ranchi, India
| | - Abhishek Kumar
- Institute of Bioinformatics (Iob), Whitefield, Bangalore, India.,Manipal Academy of Higher Education (Mahe), Manipal, India
| | - Vineet Upadhyay
- Institute of Bioinformatics (Iob), Whitefield, Bangalore, India
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16
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Adsorption of As(III) from aqueous solutions using MnO2 strengthened WTRs-chitosan beads made by homogenous method with freeze-drying. REACT FUNCT POLYM 2021. [DOI: 10.1016/j.reactfunctpolym.2021.105016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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Wang Z. Mechanisms of the synergistic lung tumorigenic effect of arsenic and benzo(a)pyrene combined- exposure. Semin Cancer Biol 2021; 76:156-162. [PMID: 33971262 DOI: 10.1016/j.semcancer.2021.05.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 05/01/2021] [Indexed: 12/20/2022]
Abstract
Humans are often exposed to mixtures of environmental pollutants especially environmental chemical carcinogens, representing a significant environmental health issue. However, our understanding on the carcinogenic effects and mechanisms of environmental carcinogen mixture exposures is limited and mostly relies on the findings from studying individual chemical carcinogens. Both arsenic and benzo(a)pyrene (BaP) are among the most common environmental carcinogens causing lung cancer and other types of cancer in humans. Millions of people are exposed to arsenic via consuming arsenic-contaminated drinking water and even more people are exposed to BaP via cigarette smoking and consuming BaP-contaminated food. Thus arsenic and BaP combined-exposure in humans is common. Previous epidemiology studies indicated that arsenic-exposed people who were cigarette smokers had significantly higher lung cancer risk than those who were non-smokers. Since BaP is one of the major carcinogens in cigarette smoke, it has been speculated that arsenic and BaP combined-exposure may play important roles in the increased lung cancer risk observed in arsenic-exposed cigarette smokers. In this review, we summarize important findings and inconsistencies about the co-carcinogenic effects and underlying mechanisms of arsenic and BaP combined-exposure and propose new areas for future studies. A clear understanding on the mechanism of co-carcinogenic effects of arsenic and BaP combined exposure may identify novel targets to more efficiently treat and prevent lung cancer resulting from arsenic and BaP combined-exposure.
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Affiliation(s)
- Zhishan Wang
- Division of Cancer Biology, Department of Medicine, MetroHealth Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH, 44109, USA.
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18
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Iatrogenic Arsenism Characterized by Palmoplantar Hyperkeratosis and Diffused Skin Cancers for Over Decades. Am J Dermatopathol 2021; 43:373-376. [PMID: 33481374 DOI: 10.1097/dad.0000000000001903] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
ABSTRACT Chronic arsenism usually occurs after a long-term unawareness of arsenic exposure from environment, occupation, food, and water. We here reported 3 cases with diffused arsenic keratosis and skin cancers derived from long-term arsenic medication ingestion. In these cases, hyperkeratotic skin lesions were initially found on palms and soles, slowly progressed to every part of the skin and lasted maximally for over 30 years. Skin cancers were diagnosed and removed intermittently within decades, but with no malignancies in other organs. Oral retinoids combing with topical 5- fluorouracil and photodynamic treatment yielded a desirable outcome.
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19
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Herrera AS, Beeraka NM, Sinelnikov MY, Nikolenko VN, Giller DB, Solis LFT, Mikhaleva LM, Somasundaram SG, Kirkland CE, Aliev G. The Beneficial Effects of QIAPI 1® against Pentavalent Arsenic-Induced Lung Toxicity a Hypothetical Model for SARS CoV2-Induced Lung Toxicity. Curr Pharm Biotechnol 2021; 23:307-315. [PMID: 33845734 DOI: 10.2174/1389201022666210412142230] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 01/12/2021] [Accepted: 02/16/2021] [Indexed: 11/22/2022]
Abstract
Exposure to environmental toxicants such as Arsenic (As) can result in As-induced alterations in immune regulators. Consequently, people who are more prone to viral infections like influenza A or B, H1N1, SARS CoV (Severe Acute Respiratory Syndrome Coronavirus), and SARS CoV2 may develop susceptibility to immune responses in their lungs because our previous reports delineated the ability of QIAPI 1®, a melanin precursor, to dissociate water molecules with simultaneous therapeutic efficacy against central nervous system (CNS) diseases, retinopathy, and As-induced renal toxicity. Given the commonalities of lung pathology of SARS CoV and As-induced toxicity, the aim of this study is to decipher the efficacy of QIAPI 1® against pentavalent As-induced lung toxicity by examining the pulmonary pathology. Hematoxylin & Eosin (H&E) staining was used for ascertaining the lung pathology in Wistar rat models. Animals were divided into 3 groups: control group, group treated with pentavalent As, and a group treated with pentavalent As and QIAPI 1®. There were no significant changes in lung histopathology in the control group as indicated by intact morphology. As-treated group revealed damage to the histoarchitecture with pulmonary edema, interstitial fibrosis, diffuse alveolar damage, Bronchiolitis obliterans organizing pneumonia (BOOP)-lesions, formation of hyaline membrane, multinucleated giant pneumocytes, atypical pneumocytes, inflammatory cell infiltration, and interstitial edema. The group treated with As and QIAPI 1® significantly associated with mitigated histological signs of lung inflammation induced by Arsenic. Therefore, QIAPI 1® can be recommended as antagonistic to As-induced lung toxicity. In conclusion, this model could be preferred as a hypothetical model to examine the efficacy of QIAPI 1® in SARS CoV2-induced pulmonary damage. Future studies are warranted to delineate the efficacy of QIAPI 1® against SARS CoV and SARS CoV2 lung pathology.
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Affiliation(s)
| | - Narasimha M Beeraka
- Center of Excellence in Molecular Biology and Regenerative Medicine, Department of Biochemistry, JSS Medical College, JSS Academy of Higher Education & Research, Mysore - 570 015, Karnataka. India
| | - Mikhail Y Sinelnikov
- Sechenov First Moscow State Medical University (Sechenov University), St. Trubetskaya, 8, bld. 2, Moscow, 119991. Russian Federation
| | - Vladimir N Nikolenko
- Sechenov First Moscow State Medical University (Sechenov University), St. Trubetskaya, 8, bld. 2, Moscow, 119991. Russian Federation
| | - Dimitry B Giller
- Department of Phthisiopulmonology, Sechenov First Moscow State Medical University (Sechenov University), St. Trubetskaya, 8, bld. 2, Moscow, 119991. Russian Federation
| | | | - Liudmila M Mikhaleva
- Research Institute of Human Morphology, 3 Tsyurupy Street, Moscow, 117418. Russian Federation
| | - Siva G Somasundaram
- Department of Biological Sciences, Salem University, Salem, WV. United States
| | - Cecil E Kirkland
- Department of Biological Sciences, Salem University, Salem, WV. United States
| | - Gjumrakch Aliev
- Research Institute of Human Morphology, 3 Tsyurupy Street, Moscow, 117418. Russian Federation
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20
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Kara S, Chormey DS, Saygılar A, Bakırdere S. Arsenic speciation in rice samples for trace level determination by high performance liquid chromatography-inductively coupled plasma-mass spectrometry. Food Chem 2021; 356:129706. [PMID: 33831825 DOI: 10.1016/j.foodchem.2021.129706] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Revised: 03/19/2021] [Accepted: 03/23/2021] [Indexed: 12/17/2022]
Abstract
Six arsenic species, namely arsenite (AsIII), arsenate (AsV), monomethylarsonic acid (MMA), dimethylarsinic acid (DMA), arsenobetaine (AsB) and arsenocholine (AsC) were speciated using a combination of high-performance liquid chromatography and inductively coupled plasma mass spectrometry (HPLC-ICP-MS). Under optimum chromatographic conditions, six arsenic species were well separated, and the performance of the combined system (HPLC-ICP-MS) for the species was determined. The limits of detection were calculated in the range of 0.14-0.29 ng/mL, and the corresponding quantification limits ranged between 0.45 and 0.97 ng mL-1 for the species. Spike recovery experiments performed on rice samples were used to validate the method's applicability to complex matrices. The recovery results calculated ranged between 93 and 109%, validating the method's applicability. Triplicate measurements for all spiked samples recorded percent relative standard deviation values below 10%.
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Affiliation(s)
- Semih Kara
- Radix Analysis Laboratory, Yenibosna Ladin St., No.: 4/Z229, Bahçelievler, İstanbul, Turkey
| | - Dotse Selali Chormey
- Radix Analysis Laboratory, Yenibosna Ladin St., No.: 4/Z229, Bahçelievler, İstanbul, Turkey; Yıldız Technical University, Department of Chemistry, 34349 İstanbul, Turkey
| | - Ahmet Saygılar
- Radix Analysis Laboratory, Yenibosna Ladin St., No.: 4/Z229, Bahçelievler, İstanbul, Turkey
| | - Sezgin Bakırdere
- Yıldız Technical University, Department of Chemistry, 34349 İstanbul, Turkey; Turkish Academy of Sciences (TÜBA), Piyade Sokak No.: 27, Çankaya, 06690 Ankara, Turkey.
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21
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Rahman A, Mondal NC, Fauzia F. Arsenic enrichment and its natural background in groundwater at the proximity of active floodplains of Ganga River, northern India. CHEMOSPHERE 2021; 265:129096. [PMID: 33280841 DOI: 10.1016/j.chemosphere.2020.129096] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 11/20/2020] [Accepted: 11/23/2020] [Indexed: 06/12/2023]
Abstract
Arsenic contaminated groundwater is seen as one of the most critical routes of human exposure to geogenic pollutants. Recently around 40 million inhabitants of the world are living in the hazardous zone having groundwater As level >50 μg/L. As problem of groundwater in Bhagirathi-Ganga deltaic plain is well-known for over the last three decades. Hydrogeochemical analytical data related to the As concentration had been analysed to identify the As sources in groundwater of the active floodplains of the Ganga basin in Northern India. The natural background level of As was also estimated using Grubb's test and cumulative probability plots. The natural background level is a crucial parameter for identifying and quantifying groundwater pollution and assessing measures to control pollution. The anthropogenic addition of As in groundwater was separated by the estimated inflection point. The results show that the highest As concentration, which is 8-times more than the permissible limit, is observed at Gyantoli village in Begusarai district in Bihar state. Groundwater is alkaline with a high concentration of HCO3- as compared to other chemical parameters. Further, it indicates the dominance of carbonate weathering and relatively high pH values (range: 8.00-9.00) helps to release As in groundwater. The reducing environment of the aquifer system becomes oxic at the shallow depth due to comparatively shallow groundwater level, and impressive water level fluctuation resulting in vertical mixing of anthropogenic As contaminants.
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Affiliation(s)
- Abdur Rahman
- Earth Process Modeling Group, CSIR-National Geophysical Research Institute, Hyderabad, India; Academy of Scientific & Innovative Research (AcSIR), Ghaziabad, 201 002, India
| | - N C Mondal
- Earth Process Modeling Group, CSIR-National Geophysical Research Institute, Hyderabad, India; Academy of Scientific & Innovative Research (AcSIR), Ghaziabad, 201 002, India.
| | - Fauzia Fauzia
- Academy of Scientific & Innovative Research (AcSIR), Ghaziabad, 201 002, India; Electrical Geophysics Group, CSIR-National Geophysical Research Institute, Hyderabad, India
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22
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Liu Y, Lang F, Yang C. NRF2 in human neoplasm: Cancer biology and potential therapeutic target. Pharmacol Ther 2021; 217:107664. [DOI: 10.1016/j.pharmthera.2020.107664] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/04/2020] [Indexed: 12/13/2022]
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23
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Zahan R, Ahmed S, Sharmin T, Halim MA, Rahi MS, Sheikh MC, Miyatake R, Zangrando E, Naz T, Islam MA, Reza MA. Synthesis of bis[benzyl‐
N′
‐hydrazinecarbodithioato‐
κ
2
N′
,
S
]nickel(II) complex as a novel lead molecule for cancer treatment. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6036] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Ronok Zahan
- Department of Pharmacy University of Rajshahi Rajshahi 6205 Bangladesh
- Institute of Biological Sciences University of Rajshahi Rajshahi 6205 Bangladesh
| | - Sinthyia Ahmed
- Department of Computer‐aided Drug Design The Red‐Green Research Centre Dhaka 1215 Bangladesh
| | - Tahmida Sharmin
- Department of Pharmacy University of Rajshahi Rajshahi 6205 Bangladesh
| | - Mohammad A. Halim
- Department of Computer‐aided Drug Design The Red‐Green Research Centre Dhaka 1215 Bangladesh
- Department of Physical Sciences University of Arkansas‐Fort Smith Fort Smith AR 72913 USA
| | - Md. Sifat Rahi
- Department of Genetic Engineering and Biotechnology University of Rajshahi Rajshahi 6205 Bangladesh
- Department of Genetic Engineering and Biotechnology Jashore University of Science and Technology Jashore 7408 Bangladesh
| | - Md. Chanmiya Sheikh
- Department of Applied Science, Faculty of Science Okayama University of Science 1‐1 Riomachi, Kita‐ku Okayama City 700‐0005 Japan
| | - Ryuta Miyatake
- Department of Applied Chemistry, Faculty of Engineering University of Toyama 3190 Gofuku Toyama 930‐8555 Japan
| | - Ennio Zangrando
- Department of Chemical and Pharmaceutical Sciences Via L. Giorgieri 1 Trieste 34127 Italy
| | - Tarannum Naz
- Department of Pharmacy University of Rajshahi Rajshahi 6205 Bangladesh
| | | | - Md Abu Reza
- Department of Genetic Engineering and Biotechnology University of Rajshahi Rajshahi 6205 Bangladesh
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24
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Wang L, Yan R, Yang Q, Li H, Zhang J, Shimoda Y, Kato K, Yamanaka K, An Y. Role of GH/IGF axis in arsenite-induced developmental toxicity in zebrafish embryos. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 201:110820. [PMID: 32531574 DOI: 10.1016/j.ecoenv.2020.110820] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 05/09/2020] [Accepted: 05/26/2020] [Indexed: 05/25/2023]
Abstract
Growth hormone (GH)/insulin-like growth factor (IGF) axis plays a critical role in fetal development. However, the effect of arsenite exposure on the GH/IGF axis and its toxic mechanism are still unclear. Zebrafish embryos were exposed to a range of NaAsO2 concentrations (0.0-10.0 mM) between 4 and 120 h post-fertilization (hpf). Development indexes of survival, malformation, hatching rate, heart rate, body length and locomotor behavior were measured. Hormone levels, GH/IGF axis-related genes, and nerve-related genes were also tested. The results showed that survival rate, hatching rate, heart rate, body length and locomotor behavior all decreased, while deformity increased. At 120 hpf, the survival rate of zebrafish in 1.5 mM NaAsO2 group was about 70%, the deformity rate exceeded 20%, and the body length shortened to 3.35 mm, the movement distance of zebrafish decreased approximately 63.6% under light condition and about 52.4% under dark condition. The level of GH increased and those of IGF did not change significantly, while the expression of GH/IGF axis related genes (ghra, ghrb, igf2r, igfbp3, igfbp2a, igfbp5b) and nerve related genes (dlx2, shha, ngn1, elavl3, gfap) decreased. In 1.5 mM NaAsO2 group, the decrease of igfbp3 and igfbp5b was almost obvious, about 78.2% and 72.2%. The expression of nerve genes in 1.5 mM NaAsO2 group all have declined by more than 50%. These findings suggested that arsenite exerted disruptive effects on the endocrine system by interfering with the GH/IGF axis, leading to zebrafish embryonic developmental toxicity.
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Affiliation(s)
- Luna Wang
- Department of Toxicology, School of Public Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, 215123, Jiangsu, China
| | - Rui Yan
- Department of Toxicology, School of Public Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, 215123, Jiangsu, China
| | - Qianlei Yang
- Department of Toxicology, School of Public Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, 215123, Jiangsu, China
| | - Heran Li
- Microwants International LTD, Hong Kong, China
| | - Jie Zhang
- Department of Toxicology, School of Public Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, 215123, Jiangsu, China
| | - Yasuyo Shimoda
- Laboratory of Environmental Toxicology and Carcinogenesis, School of Pharmacy, Nihon University, Chiba, 274-8555, Japan
| | - Koichi Kato
- Laboratory of Environmental Toxicology and Carcinogenesis, School of Pharmacy, Nihon University, Chiba, 274-8555, Japan
| | - Kenzo Yamanaka
- Laboratory of Environmental Toxicology and Carcinogenesis, School of Pharmacy, Nihon University, Chiba, 274-8555, Japan.
| | - Yan An
- Department of Toxicology, School of Public Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, 215123, Jiangsu, China.
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25
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Akbari H, Gholami M, Akbari H, Adibzadeh A, Taghavi L, Hayati B, Nazari S. Poly (amidoamine) generation 6 functionalized Fe 3O 4@SiO 2/GPTMS core-shell magnetic NPs as a new adsorbent for Arsenite adsorption: kinetic, isotherm and thermodynamic studies. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2020; 18:253-265. [PMID: 32399237 PMCID: PMC7203406 DOI: 10.1007/s40201-020-00461-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 02/19/2020] [Indexed: 05/28/2023]
Abstract
In this survey a new route has been developed the preparation of poly (amidoamine) generation 6 (PAMAM-G6) dendrimer functionalized Fe3O4/SiO2 nanoparticle and was used for arsenite (As (III)) adsorption. SiO2 was first grafted onto the surface of Fe3O4 to formation a core-shell structure. Then the introduction of epoxy rings were done by hydrolysis of methylsilane groups of 3-Glycidoxypropyltrimethoxysilane (GPTMS) on OH groups of SiO2 and afterwards, PAMAM-G6 reacted with epoxy rings of GPTMS to obtain a multiamino magnetic adsorbent. The as-prepared nanocomposite was characterized by TEM, Zeta potential, FESEM, VSM, FTIR, Raman and XPS techniques. The effects of reaction time from 5 to 50 min, initial As (III) concentration in the range of 1-10 mgL-1, initial adsorbent concentration in the range of 10-50 mgL-1 and initial pH in the range 3-8 were studied. The resulting of kinetic and isotherm models displays high adsorption affinity (233 mg/g) for As (III) and the adsorbent can reach the adsorbent can reach the adsorption equilibrium at a neutral pH (7). The As (III) loaded nanocomposite could be separated readily from aqueous solution by magnetic and regenerated simply via NaOH. The study of the adsorption procedure showed that the pseudo-second order kinetics and Langmuir isotherm well-fitted with the experimental data of As (III) adsorption onto nanocomposite.
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Affiliation(s)
- Hamed Akbari
- Health Research Center, Lifestyle Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Mitra Gholami
- Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran
- Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Hesam Akbari
- Health Research Center, Lifestyle Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Amir Adibzadeh
- Health Research Center, Lifestyle Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Lobat Taghavi
- Department of Environmental Pollution, Faculty of Natural Resources and Environment, Science and research Branch, Islamic Azad University, Tehran, Iran
| | - Bagher Hayati
- Department of Environmental Health Engineering, Khalkhal University of Medical Sciences, Khalkhal, Iran
| | - Shahram Nazari
- Health Research Center, Lifestyle Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
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Tikka C, Manthari RK, Ommati MM, Niu R, Sun Z, Zhang J, Wang J. Immune disruption occurs through altered gut microbiome and NOD2 in arsenic induced mice: Correlation with colon cancer markers. CHEMOSPHERE 2020; 246:125791. [PMID: 31927375 DOI: 10.1016/j.chemosphere.2019.125791] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 12/27/2019] [Accepted: 12/29/2019] [Indexed: 06/10/2023]
Abstract
The gut microbial compositions are easily affected by the environmental chemicals like arsenic (As) leading to dysbiosis. The dysbiosis of gut microbiome has associated with numerous diseases; among which cancer is one of the major diseases. The meticulous mechanism underlying As- altered gut microbiome, Nucleotide domine containing protein 2 (NOD2) and how altered gut microbiome disturbs the intestinal homeostasis to regulate colon cancer markers remains unclear. For this, one hundred twenty 8-week old age male mice were divided into two exposure periods (3 and 6 months), and each exposure group animals were further divided into four groups as control (received only distilled H2O), low (0.15 mg As2O3/L), medium (1.5 mg As2O3/L) and high (15 mg As2O3/L) dose (each group containing 15 mice) administrated for 3 and 6 months. The results showed that As exposure highly altered gut microbiome with a significant depletion in NOD2 in contrast to control groups. Moreover, the dendritic cells (CD11a, CD103, CX3CR1) and macrophages (F4/80) were significantly increased by As exposure. Interestingly, increased trend of inflammatory cytokines (TNF-α, IFN-γ, IL-17) and depleted anti-inflammatory cytokines (IL-10) was observed in As exposed mice. Furthermore, the colon cancer markers β-catenin has increased while APC was arrested by As both in 3 and 6 months treated animals. Many studies reported that As altered gut microbial compositions, in this study, our results suggested that altered gut microbiome indirectly regulates colon cancer marker through immune system destruction mediated by inflammatory cytokines.
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Affiliation(s)
- Chiranjeevi Tikka
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, China
| | - Ram Kumar Manthari
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, China
| | - Mohammad Mehdi Ommati
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, China; Department of Life Science, Shanxi Agricultural University, Taigu, Shanxi, 030801, China
| | - Ruiyan Niu
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, China
| | - Zilong Sun
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, China
| | - Jianhai Zhang
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, China
| | - Jundong Wang
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, China.
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Biswas S, Banna HU, Jahan M, Anjum A, Siddique AE, Roy A, Nikkon F, Salam KA, Haque A, Himeno S, Hossain K, Saud ZA. In vivo evaluation of arsenic-associated behavioral and biochemical alterations in F 0 and F 1 mice. CHEMOSPHERE 2020; 245:125619. [PMID: 31846792 DOI: 10.1016/j.chemosphere.2019.125619] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Revised: 11/18/2019] [Accepted: 12/09/2019] [Indexed: 06/10/2023]
Abstract
Groundwater contaminated with arsenic (As) is the biggest threat to public health in Bangladesh. The children of As-exposure parents are also exposing to As through drinking water. The effects of As on the children's health of As-exposure parents are poorly understood. An animal study was taken to evaluate the effects of As on behavioral and biochemical changes in F1 mice. Swiss albino mice were separated into three groups: a) control, b) As-treated F0 and c) As-treated F1. Elevated plus maze and Morris water maze tests were used for evaluating anxiety, spatial memory and learning, respectively. We found that the effect of As on anxiety like behavior, spatial memory and learning impairment in As-treated F1 mice was significantly higher than that of As-treated F0 mice and control group. Additionally, we also evaluated the effects of As on biochemical parameters by measuring ALT, AST, ALP, BChE, SOD activities and the level of creatinine in As-induced mice, where we found that all of the blood parameters were significantly changed in F1 generation. A significant portion of As accumulated in the brain, liver and kidney of F1 mice than F0 mice. Histological analysis revealed a significant change in tissue damage related to hepatic and renal dysfunctions that might be associated with As-induced biochemical alterations. In conclusion, arsenic plays an important role for the development of As-associated neurological disorders, hepatic toxicities, and renal dysfunctions in both F0 and F1 generations. Notably F1 mice were much more vulnerable to As-exposure than F0 mice.
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Affiliation(s)
- Sheta Biswas
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Hasan Ul Banna
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Momotaj Jahan
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Adiba Anjum
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Abu Eabrahim Siddique
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Apurba Roy
- Department of Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Farjana Nikkon
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Kazi Abdus Salam
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Azizul Haque
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Seiichiro Himeno
- Laboratory of Molecular Nutrition and Toxicology, Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima, 770-8514, Japan
| | - Khaled Hossain
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Zahangir Alam Saud
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh.
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Wang Z, Yang P, Xie J, Lin HP, Kumagai K, Harkema J, Yang C. Arsenic and benzo[a]pyrene co-exposure acts synergistically in inducing cancer stem cell-like property and tumorigenesis by epigenetically down-regulating SOCS3 expression. ENVIRONMENT INTERNATIONAL 2020; 137:105560. [PMID: 32062438 PMCID: PMC7099608 DOI: 10.1016/j.envint.2020.105560] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Revised: 02/05/2020] [Accepted: 02/06/2020] [Indexed: 05/23/2023]
Abstract
Arsenic and benzo[a]pyrene (BaP) are among the most common environmental carcinogens causing lung cancer. Millions of people are exposed to arsenic through consuming arsenic-contaminated drinking water. High levels of BaP are found in well-done barbecued meat and other food in addition to cigarette smoke. Hence, arsenic and BaP co-exposure in humans is common. However, the combined health effect and the underlying mechanism of arsenic and BaP co-exposure have not been well-understood. In this study we investigate the combined tumorigenic effect of arsenic and BaP co-exposure and the mechanism using both cell culture and mouse models. It was found that arsenic (sodium arsenite, 1.0 µM) and BaP (2.5 µM) co-exposure for 30 weeks synergizes in inducing malignant transformation of immortalized non-tumorigenic human bronchial epithelial cells and cancer stem cell (CSC)-like property to enhance their tumorigenicity. In animal studies, A/J mice were exposed to arsenic in drinking water (sodium arsenite, 20 ppm) starting from gestation day 18. After birth, the dams continuously received arsenic water throughout lactation. At weaning (3 weeks of age), male offspring were exposed to either arsenic alone via drinking the same arsenic water or exposed to arsenic plus BaP. BaP was administered via oral gavage (3 µmol per mouse per week) once a week starting from 3 weeks of age for 8 weeks. All mice were euthanized 34-weeks after the first BaP exposure. It was found that mice in control and arsenic exposure alone group did not develop lung tumors. All mice in BaP exposure alone group developed lung adenomas. However, arsenic and BaP co-exposure synergized in increasing lung tumor multiplicity and tumor burden. Furthermore, 30% of mice in arsenic and BaP co-exposure group also developed lung adenocarcinomas. Mechanistic studies revealed that arsenic and BaP co-exposure does not produce more BPDE-DNA adducts than BaP exposure alone; but acts synergistically in activating aryl hydrocarbon receptor (AhR) to up-regulate the expression of a histone H3 lysine 9 methyltransferase SUV39H1 and increase the level of suppressive H3 lysine 9 dimethylation (H3K9me2), which down-regulates the expression of tumor suppressive SOCS3 leading to enhanced activation of Akt and Erk1/2 to promote cell transformation, CSC-like property and tumorigenesis. Together, these findings suggest that arsenic and BaP co-exposure synergizes in causing epigenetic dysregulation to enhance cell transformation, CSC-like property and tumorigenesis.
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Affiliation(s)
- Zhishan Wang
- Department of Toxicology and Cancer Biology, University of Kentucky College of Medicine, Lexington, KY, USA.
| | - Ping Yang
- Department of Toxicology and Cancer Biology, University of Kentucky College of Medicine, Lexington, KY, USA; School of Public Health, Guangzhou Medical University, Guangzhou, Guangdong, PR China
| | - Jie Xie
- Department of Toxicology and Cancer Biology, University of Kentucky College of Medicine, Lexington, KY, USA; School of Health Sciences, Wuhan University, Wuhan, Hubei, PR China
| | - Hsuan-Pei Lin
- Department of Toxicology and Cancer Biology, University of Kentucky College of Medicine, Lexington, KY, USA
| | - Kazuyoshi Kumagai
- Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA
| | - Jack Harkema
- Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA
| | - Chengfeng Yang
- Department of Toxicology and Cancer Biology, University of Kentucky College of Medicine, Lexington, KY, USA
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Cheng C, Nie ZW, He LY, Sheng XF. Rice-derived facultative endophytic Serratia liquefaciens F2 decreases rice grain arsenic accumulation in arsenic-polluted soil. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 259:113832. [PMID: 31918131 DOI: 10.1016/j.envpol.2019.113832] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Revised: 11/22/2019] [Accepted: 12/15/2019] [Indexed: 06/10/2023]
Abstract
In this study, an arsenic (As)-resistant facultative endophytic bacterial strain, F2, was isolated from the root of Oryza sativa Longliangyou Huazhan and identified as Serratia liquefaciens according to 16S rRNA gene sequence analysis. Strain F2 was characterized for i) its impacts on As immobilization in solution and rice tissue As accumulation, and ii) the mechanisms involved for different levels of As-pollution in soils. In strain F2-inoculated culture medium, the concentration of As decreased, while the pH, cell growth, and cell-immobilized As significantly increased over time. Grain As content reduced by between 23 and 36% in strain F2-inoculated rice plants in comparison to the control. Available As content decreased by between 28 and 52%, but unavailable As content increased by between 27 and 46% in the strain F2-inoculated soil when compared with the controls. Moreover, the strain decreased the As translocation factor by between 34 and 46%, but increased the As concentration by between 24 and 70% in Fe plaque on the rice root surfaces in comparison to the controls. These results suggested that strain F2 decreased the rice grain As uptake by i) decreasing available As in soil, ii) increasing rice root surface As adsorption, and iii) decreasing As translocation from the roots to grains. Our findings may provide a new rice-derived facultative endophytic bacteria-assisted approach for decreasing the As uptake to rice grains in As-polluted soils.
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Affiliation(s)
- Cheng Cheng
- College of Life Sciences, Nanjing Agricultural University, Key Laboratory of Agricultural and Environmental Microbiology, Ministry of Agriculture, Nanjing 210095, PR China
| | - Zong-Wei Nie
- College of Life Sciences, Nanjing Agricultural University, Key Laboratory of Agricultural and Environmental Microbiology, Ministry of Agriculture, Nanjing 210095, PR China
| | - Lin-Yan He
- College of Life Sciences, Nanjing Agricultural University, Key Laboratory of Agricultural and Environmental Microbiology, Ministry of Agriculture, Nanjing 210095, PR China
| | - Xia-Fang Sheng
- College of Life Sciences, Nanjing Agricultural University, Key Laboratory of Agricultural and Environmental Microbiology, Ministry of Agriculture, Nanjing 210095, PR China.
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Biswas S, Anjum A, Banna HU, Rahman M, Siddique AE, Karim Y, Nikkon F, Haque A, Hossain K, Saud ZA. Manganese attenuates the effects of arsenic on neurobehavioral and biochemical changes in mice co-exposed to arsenic and manganese. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:29257-29266. [PMID: 31396869 DOI: 10.1007/s11356-019-06112-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Accepted: 07/29/2019] [Indexed: 06/10/2023]
Abstract
An unsafe level of manganese (Mn) was detected in the drinking water in some arsenic (As)-contaminated areas in Bangladesh. Mn is an essential trace element; however, the intake of a higher level of Mn through the drinking water is associated with the development of toxicity in humans. This study was designed to evaluate the effects of As and Mn co-exposure on neurobehavioral and biochemical alterations in a mouse model. Sodium arsenite (10 mg/kg body weight) and manganese chloride tetrahydrate (10 mg/kg body weight) were given to mice individually and in combination with drinking water for 90 days. Results showed that individual As and Mn exposure as well as co-exposure of As and Mn significantly (p < 0.05) reduced the percent of time spent in the open arms when compared with that of control mice. In addition, percent of time spent in open arms significantly (p < 0.05) increased in co-exposed mice compared with As exposure in elevated plus maze (42.05 ± 1.10 versus 38.94 ± 0.66). In the Morris water maze test, the mean time latency to find the platform was longer in metal-treated mice in comparison to that of control mice (p < 0.05). Importantly, the co-exposed group had shorter time when compared with the As-exposed group during the training periods (p < 0.05). Moreover, co-exposed mice stayed significantly (p < 0.05) more time in the target quadrant in the probe trial in comparison with that of As-exposed mice (27.25 ± 1.21 versus 23.83 ± 0.87 s) but less time than control mice (27.25 ± 1.21 versus 43.17 ± 1.49 s). In addition, a significant (p < 0.05) alteration of biochemical parameters such as ALT, AST, ALP, BChE, and SOD as well as urea and creatinine levels were noted in the As-exposed group compared with the control group and Mn significantly (p < 0.05) attenuated the effects of As in co-exposed mice. Therefore, the results of this study suggest that As and Mn may have some antagonistic effect and Mn could attenuate the As-induced neurobehavioral and biochemical alterations in co-exposed mice.
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Affiliation(s)
- Sheta Biswas
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Adiba Anjum
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Hasan Ul Banna
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Mizanur Rahman
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Abu Eabrahim Siddique
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Yeasir Karim
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Farjana Nikkon
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Azizul Haque
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC, USA
| | - Khaled Hossain
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Zahangir Alam Saud
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh.
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Karim Y, Siddique AE, Hossen F, Rahman M, Mondal V, Banna HU, Hasibuzzaman MM, Hosen Z, Islam MS, Sarker MK, Nikkon F, Saud ZA, Xin L, Himeno S, Hossain K. Dose-dependent relationships between chronic arsenic exposure and cognitive impairment and serum brain-derived neurotrophic factor. ENVIRONMENT INTERNATIONAL 2019; 131:105029. [PMID: 31352261 DOI: 10.1016/j.envint.2019.105029] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 07/15/2019] [Accepted: 07/16/2019] [Indexed: 05/19/2023]
Abstract
BACKGROUND Arsenic poisoning is a public health problem worldwide. A few studies have reported the effects of arsenic exposure on adult cognitive function, but with limitations in the subject selection and exposure markers. Moreover, information regarding the association between arsenic exposure and biomarker of cognitive impairment is scarce. OBJECTIVES We examined the associations between arsenic exposure and adult cognitive impairment using the Mini-Mental State Examination (MMSE) and the serum levels of brain-derived neurotrophic factor (BDNF), a potential biomarker of cognitive health status. METHODS We designed a cross-sectional study that recruited 693 adult (18-60 years old) subjects from the areas of low- and high‑arsenic exposure in rural Bangladesh. The subjects' arsenic exposure levels (drinking water, hair, and nail arsenic concentrations) were measured by inductively coupled plasma-mass spectroscopy. The Bangla version of the MMSE was used as a cognitive assessment tool. Serum BDNF (sBDNF) levels were assessed by immunoassay. RESULTS In this study, we found that average MMSE score and sBDNF level of the subjects in arsenic-endemic areas were significantly (p < 0.001 for both) lower than those of the subjects in non-endemic area. Our analyses revealed that both MMSE scores and sBDNF levels were decreased with the increasing concentrations of arsenic in drinking water, hair, and nails in a dose-dependent fashion. In regression analyses, significant associations of arsenic exposure metrics with MMSE scores and sBDNF levels were observed even after adjustment for several variables. Intriguingly, MMSE scores showed a significantly positive correlation with sBDNF levels. CONCLUSION Our findings demonstrate that chronic exposure to arsenic dose-dependently decreases cognitive function in adults, with a concomitant reduction of sBDNF levels. A decreased BDNF level may be part of the biochemical basis of chronic arsenic exposure-related cognitive impairment.
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Affiliation(s)
- Yeasir Karim
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi 6205, Bangladesh
| | - Abu Eabrahim Siddique
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi 6205, Bangladesh
| | - Faruk Hossen
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi 6205, Bangladesh
| | - Mizanur Rahman
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi 6205, Bangladesh
| | - Victor Mondal
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi 6205, Bangladesh
| | - Hasan Ul Banna
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi 6205, Bangladesh
| | - M M Hasibuzzaman
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi 6205, Bangladesh
| | - Zubaer Hosen
- Department of Applied Nutrition and Food Technology, Islamic University, Kushtia 7003, Bangladesh
| | - Md Shofikul Islam
- Department of Applied Nutrition and Food Technology, Islamic University, Kushtia 7003, Bangladesh
| | | | - Farjana Nikkon
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi 6205, Bangladesh
| | - Zahangir Alam Saud
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi 6205, Bangladesh
| | - Lian Xin
- Laboratory of Molecular Nutrition and Toxicology, Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima 770-8514, Japan
| | - Seiichiro Himeno
- Laboratory of Molecular Nutrition and Toxicology, Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima 770-8514, Japan
| | - Khaled Hossain
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi 6205, Bangladesh.
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Potential facet for prenatal arsenic exposure paradigm: linking endocrine disruption and epigenetics. THE NUCLEUS 2019. [DOI: 10.1007/s13237-019-00274-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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Afrakhteh M, Kheirollah A, Pourshohod A, Ghaffari MA, Jamalan M, Zeinali M. Cytotoxicity of Sodium Arsenite-loaded Anti-HER2 Immunoliposomes Against HER2-expressing Human Breast Cancer Cell Lines. LETT DRUG DES DISCOV 2019. [DOI: 10.2174/1570180815666180803120409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Chemotherapy is a routine approach in treatment of patients with cancer,
while side effects of chemotherapeutic drugs are inevitable. To minimize side effects, specific targeting
of neoplastic cells is a promising strategy in cancer therapy. Sodium arsenite is a metalloid
toxin with anti-neoplastic properties, but low selectivity and carcinogenic activity have limited its
clinical usage.
Methods:
Targeting of HER2-overexpressing (SK-BR-3) and HER2-low expressing (MCF-7) cancerous
breast cell lines by two different liposomal forms of sodium arsenite (bare liposome and
trastuzumab-conjugated liposome) was investigated in the current study. Levels of HER2 expression
in the above mentioned cell lines were confirmed by western blotting. Size and morphology of
the constructed liposomes were characterized by atomic force microscopy (AFM) and dynamic light
scattering (DLS). Viability of the cells after treatment was assessed using MTT assay.
Results:
Sodium arsenite in the free and liposomal forms showed growth inhibitory effects against
both SK-BR-3 and MCF-7 cell lines in an examined concentration range of 1-20 µM, although this
effect was more significant in SK-BR-3 cell line. Loading of sodium arsenite in anti-HER2 immunoliposomes
significantly enhanced its cytotoxicity while the specificity was also improved. By
encapsulation of sodium arsenite in anti-HER2 immunoliposomes, its efficacy in ablation of SKBR-
3 cells was increased about 1.4-fold compared to the free or liposomal forms.
Conclusion:
In conclusion, targeted delivery of sodium arsenite using anti-HER2 immunoliposomes
can be considered as an alternative strategy for specific treatment of HER2-positive
breast cancers.
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Affiliation(s)
- Moslem Afrakhteh
- Department of Biochemistry, Cellular and Molecular Research Center, Ahvaz Jundishapur University of Medical Sciences, Medical School, Ahvaz, Iran
| | - Alireza Kheirollah
- Department of Biochemistry, Cellular and Molecular Research Center, Ahvaz Jundishapur University of Medical Sciences, Medical School, Ahvaz, Iran
| | - Aminollah Pourshohod
- Department of Biochemistry, Cellular and Molecular Research Center, Ahvaz Jundishapur University of Medical Sciences, Medical School, Ahvaz, Iran
| | - Mohammad Ali Ghaffari
- Department of Biochemistry, Cellular and Molecular Research Center, Ahvaz Jundishapur University of Medical Sciences, Medical School, Ahvaz, Iran
| | - Mostafa Jamalan
- Department of Biochemistry, Cellular and Molecular Research Center, Ahvaz Jundishapur University of Medical Sciences, Medical School, Ahvaz, Iran
| | - Majid Zeinali
- Biotechnology Research Center, Research Institute of Petroleum Industry (RIPI), Tehran, Iran
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Fão N, Nascimento S, de La Cruz AH, Calderon D, Rocha R, Saint'Pierre T, Gioda A, Thiesen FV, Brucker N, Emanuelli T, Garcia SC. Estimation of total arsenic contamination and exposure in Brazilian rice and infant cereals. Drug Chem Toxicol 2019; 44:400-408. [PMID: 30938198 DOI: 10.1080/01480545.2019.1591435] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Arsenic (As) causes health effects, especially cancer. Rice (Oryza sativa L.) can contain high As concentrations. Using ICP-MS, we quantified the total As (tAs) levels in the main brands of rice (n = 103) and infant cereals (n = 27) consumed by Brazilians. The levels were compared to the maximum limits prescribed by regulatory agencies. We estimated the daily intake (EDI) of As by Brazilians by combining the mean As concentration determined in the white rice samples with per capita daily consumption divided by the average body weight as reported by the Brazilian Institute of Geography and Statistics in 2010. The possible health risk for consumers was assessed by calculating the margin of exposure (MOE) as prescribed by the Joint FAO/WHO Expert Committee on Food Additives (JECFA). Moreover, tAs was determined in 11 pesticides used by Brazilian farmers. The tAs levels in the rice ranged from 0.003 to 1.3 mg kg-1. Approximately 27% of the white rice contained tAs levels above the limit set by Mercosul (0.3 mg kg-1) and 45% were above the limit set by the European Commission (0.2 mg kg-1). In the infant cereals, tAs levels ranged from 0.003 to 0.243 mg kg-1. In the pesticides, tAs levels ranged from 0.005 to 0.315 mg L-1. The EDI showed that, on average, Brazilians consume 4.13 µg As kg-1 BW weekly. In addition, a low MOE was observed, demonstrating that high use of rice presents a risk of high inorganic (iAs) exposure, which represents a public health concern.
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Affiliation(s)
- Nuryan Fão
- Post-graduate Program in Pharmaceutical Sciences, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil.,Laboratory of Toxicology (LATOX), Department of Clinical Analysis, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Sabrina Nascimento
- Post-graduate Program in Pharmaceutical Sciences, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil.,Laboratory of Toxicology (LATOX), Department of Clinical Analysis, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | | | - Dionisio Calderon
- Department of Chemistry, Pontifical Catholic University of Rio de Janeiro (PUC-Rio), Rio de Janeiro, RJ, Brazil
| | - Rafael Rocha
- Department of Chemistry, Pontifical Catholic University of Rio de Janeiro (PUC-Rio), Rio de Janeiro, RJ, Brazil
| | - Tatiana Saint'Pierre
- Department of Chemistry, Pontifical Catholic University of Rio de Janeiro (PUC-Rio), Rio de Janeiro, RJ, Brazil
| | - Adriana Gioda
- Department of Chemistry, Pontifical Catholic University of Rio de Janeiro (PUC-Rio), Rio de Janeiro, RJ, Brazil
| | - Flavia V Thiesen
- Science School, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Natália Brucker
- Department of Physiology and Pharmacology, Federal University of Santa Santa Maria, RS, Brazill
| | - Tatiana Emanuelli
- Integrated Centre for Laboratory Analysis Development (NIDAL), Department of Food Technology and Science,Centre of Rural Sciences, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Solange Cristina Garcia
- Post-graduate Program in Pharmaceutical Sciences, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil.,Laboratory of Toxicology (LATOX), Department of Clinical Analysis, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
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Abstract
Toxic chemicals, either from natural sources or man-made, are ubiquitous in our environment. Many of the synthetic chemicals make life more comfortable and therefore production continues to grow. Simultaneously with the increase in production, an increase in neurodevelopmental disorders has been observed. Some chemicals are not biodegradable or have a very long half-life time and, despite the fact that production of a number of those chemicals has been severely reduced, they are still ubiquitous in the environment. Fetal exposure to toxic chemicals is dependent on maternal exposure to those chemicals and the developing stage of the fetus. Human evidence from epidemiologic studies is described with regard to the effect of prenatal exposure to various groups of neurotoxicants (alcohol, particulate fine matter, metals, and endocrine disrupting chemicals) on neurobehavior development. Data indicate that prenatal exposure to alcohol, polycyclic aromatic hydrocarbons, lead, methylmercury (MeHg), organophosphate pesticides (OPPs), and polychlorinated biphenyl ethers (PBDEs) impair cognitive development, whereas exposure to alcohol, MeHg, organochlorine pesticides and OPPs, polychlorinated biphenyls, PBDEs, and bisphenol A increases the risk of developing either attention deficit/hyperactivity and/or autism spectrum disorders. Psychomotor development appears to be less affected. However, data are not conclusive, which may depend on the assessment of exposure and the exposure level, among other factors.
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Affiliation(s)
- Margot van de Bor
- Department of Environment and Health, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.
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Ganapathy S, Liu J, Xiong R, Yu T, Makriyannis A, Chen C. Chronic low dose arsenic exposure preferentially perturbs mitotic phase of the cell cycle. Genes Cancer 2018; 10:39-51. [PMID: 30899418 PMCID: PMC6420791 DOI: 10.18632/genesandcancer.185] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Environmental pollution is a big challenge for human survival. Arsenic compounds are well-known biohazard, the exposure of which is closely linked to onsets of various human diseases, particularly cancers. Upon chronically exposing to arsenic compounds, genomic integrity is often disrupted, leading to tumor development. However, the underlying mechanisms by which chronic, low dose arsenic exposure targets genetic stability to initiate carcinogenesis still remain not fully understood. In this study, human lung epithelial BEAS-2B cells and keratinocytes were treated with 0.5 μM of sodium arsenite for one month (designated as BEAS-2B-SA cells or keratinocytes-SA), and its effect on cell cycle responses was analyzed. After being arrested in mitotic phase of the cell cycle by nocodazole treatment, BEAS-2B-SA cells or keratinocytes-SA were delayed to enter next cytokinesis. The lagging exit of the cells from mitosis was accompanied by a sustained Plk1 phosphorylation, which led to a persistent activation of the mitotic regulators BubR1 and Cdc27. As the result, cyclin B1 (clnB1) degradation was attenuated. BEAS-2B-SA cells or keratinocytes-SA also expressed a constitutively active Akt. The cytogenetic analysis showed an increased numbers of aneuploidy in these cells. The suppression of Akt reversed the aberrant expressions of the mitotic regulators, delay of mitotic exit as well as chromosomal aberrations. Our findings suggest that a long-term exposure to low dose sodium arsenite aberrantly retains the catenation of mitosis, which facilitates establishing genetic instability and predisposes the cells to tumorigenesis.
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Affiliation(s)
| | - Jian Liu
- The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Sheng, P.R. China
| | - Rui Xiong
- The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Sheng, P.R. China
| | - Tianqi Yu
- The Center for Drug Discovery, Northeastern University, Boston, MA, USA
| | | | - Changyan Chen
- The Center for Drug Discovery, Northeastern University, Boston, MA, USA
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Isolation and characterization of aerobic, culturable, arsenic-tolerant bacteria from lead-zinc mine tailing in southern China. World J Microbiol Biotechnol 2018; 34:177. [PMID: 30446973 DOI: 10.1007/s11274-018-2557-x] [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] [Received: 09/20/2016] [Accepted: 11/07/2018] [Indexed: 10/27/2022]
Abstract
Bioremediation of arsenic (As) pollution is an important environmental issue. The present investigation was carried out to isolate As-resistant novel bacteria and characterize their As transformation and tolerance ability. A total of 170 As-resistant bacteria were isolated from As-contaminated soils at the Kangjiawan lead-zinc tailing mine, located in Hunan Province, southern China. Thirteen As-resistant isolates were screened by exposure to 260 mM Na2HAsO4·7H2O, most of which showed a very high level of resistance to As5+ (MIC ≥ 600 mM) and As3+ (MIC ≥ 10 mM). Sequence analysis of 16S rRNA genes indicated that the 13 isolates tested belong to the phyla Firmicutes, Proteobacteria and Actinobacteria, and these isolates were assigned to eight genera, Bacillus, Williamsia, Citricoccus, Rhodococcus, Arthrobacter, Ochrobactrum, Pseudomonas and Sphingomonas. Genes involved in As resistance were present in 11 of the isolates. All 13 strains transformed As (1 mM); the oxidation and reduction rates were 5-30% and 10-51.2% within 72 h, respectively. The rates of oxidation by Bacillus sp. Tw1 and Pseudomonas spp. Tw224 peaked at 42.48 and 34.94% at 120 h, respectively. For Pseudomonas spp. Tw224 and Bacillus sp. Tw133, the highest reduction rates were 52.01% at 48 h and 48.66% at 144 h, respectively. Our findings will facilitate further research into As metabolism and bioremediation of As pollution by genome sequencing and genes modification.
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38
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Tanu T, Anjum A, Jahan M, Nikkon F, Hoque M, Roy AK, Haque A, Himeno S, Hossain K, Saud ZA. Antimony-Induced Neurobehavioral and Biochemical Perturbations in Mice. Biol Trace Elem Res 2018. [PMID: 29520725 DOI: 10.1007/s12011-018-1290-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Groundwater used for drinking has been contaminated with naturally occurring inorganic arsenic and other metals, and metal-contaminated drinking water is the biggest threat to public health in Bangladesh. Toxic metals present in the drinking water have a strong relationship with chronic diseases in humans. Antimony (Sb), a naturally occurring metal, has been reported to be present in the drinking water along with other heavy metals in Bangladesh. Although Sb is present in the environment, very little attention has been given to the toxic effects of Sb. The present study was designed to investigate the in vivo effects of Sb on neurobehavioral changes like anxiety, learning and memory impairment, and blood indices related to organ dysfunction. Mice exposed to antimony potassium-tartrate hydrate (Sb) (10 mg/kg body weight) significantly (p < 0.05) decreased the time spent in open arms while increased the time spent in closed arms compared to the control mice in elevated plus maze. The mean latency time of control group to find the platform decreased (p < 0.05) significantly during 7 days learning as compared to Sb-treated group in Morris water maze test, and Sb-exposed group spent significantly (p < 0.05) less time in the desired quadrant as compared to the control group in probe trial. Sb treatment also significantly altered blood indices related to liver and kidney dysfunction. Additionally, Sb-induced biochemical alterations were associated with significant perturbations in histological architecture of liver and kidney of Sb-exposed mice. These data suggest that Sb has a toxic effect on neurobehavioral and biochemical changes in mice.
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Affiliation(s)
- Tanzina Tanu
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Adiba Anjum
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Momotaj Jahan
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Farjana Nikkon
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Mominul Hoque
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Apurba Kumar Roy
- Department of Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Azizul Haque
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Seiichiro Himeno
- Laboratory of Molecular Nutrition and Toxicology, Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima, 770-8514, Japan
| | - Khaled Hossain
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Zahangir Alam Saud
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh.
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Guo X, Chen X, Wang J, Liu Z, Gaile D, Wu H, Yu G, Mao G, Yang Z, Di Z, Guo X, Cao L, Chang P, Kang B, Chen J, Gao W, Ren X. Multi-generational impacts of arsenic exposure on genome-wide DNA methylation and the implications for arsenic-induced skin lesions. ENVIRONMENT INTERNATIONAL 2018; 119:250-263. [PMID: 29982128 PMCID: PMC6143427 DOI: 10.1016/j.envint.2018.06.024] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 06/18/2018] [Accepted: 06/19/2018] [Indexed: 05/19/2023]
Abstract
As a nonmutagenic human carcinogen, arsenic (As)'s carcinogenic activity is likely the result of epigenetic changes, particularly alterations in DNA methylation. While increasing studies indicate a potentially important role for timing of As exposure on DNA methylation patterns and the subsequent differential risks for As toxicity and carcinogenesis, there is a lack of research that tackles these critical questions, particularly in human based populations. Here we reported a family-based study including three generations, in which each generation living in the same household had a distinctive timing of As exposure: in adulthood, in utero and during early childhood, and in germlines exposure for grandparents, parents, and grandchildren, respectively. We generated genome-wide DNA methylation data for 18 As-exposed families, nine control families, as well as 18 arsenical skin lesion patients. Our analysis showed that As exposure may leave detectable DNA methylation changes even though exposure occurred decades ago, and the most significant changes of global DNA methylation were observed among patients afflicted with arsenical skin lesions. As exposure across generations shared common differentially methylated DNA loci and regions (744 DML and 15 DMRs) despite the distinctive exposure timing in each generation. Importantly, based on these DML, clustering analysis grouped skin lesion patients together with grandparents in exposed families in the same cluster, separated from grandparents in control families. Further analysis identified a number of DML and several molecular pathways that were significantly distinguished between controls, exposed populations, as well as skin lesion patients. Finally, our exploratory analysis suggested that some of these DML altered by As exposure, may have the potential to be inherited affecting not only those directly exposed but also later generations. Together, our results suggest that common DML and/or DMRs associated with an increased risk for disease development could be identified regardless of when exposure to As occurred during their life span, and thus may be able to serve as biomarkers for identifying individuals at risk for As-induced skin lesions and possible cancers.
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Affiliation(s)
- Xiaojuan Guo
- School of Public Health, Inner Mongolia Medical University, Hohhot, Inner Mongolia, China; School of Public Health & Management, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xushen Chen
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo, Buffalo, NY, USA
| | - Jie Wang
- Department of Biochemistry, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA
| | - Zhiyue Liu
- School of Public Health, Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - Daniel Gaile
- Department of Biostatistics, School of Public Health and Health Professions, University at Buffalo, Buffalo, NY, USA
| | - Hongmei Wu
- School of Public Health & Management, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Guan Yu
- Department of Biostatistics, School of Public Health and Health Professions, University at Buffalo, Buffalo, NY, USA
| | - Guangyun Mao
- School of Public Health & Management, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Zuopeng Yang
- Center for Disease Control and Prevention, Wuyuan County, Inner Mongolia, China
| | - Zhen Di
- Center for Disease Control and Prevention, Hangjinhouqi County, Inner Mongolia, China
| | - Xiuqing Guo
- School of Public Health, Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - Li Cao
- School of Public Health, Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - Peiye Chang
- School of Public Health, Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - Binxian Kang
- Center for Disease Control and Prevention, Wuyuan County, Inner Mongolia, China
| | - Jinyu Chen
- Center for Disease Control and Prevention, Wuyuan County, Inner Mongolia, China
| | - Wen Gao
- Center for Disease Control and Prevention, Wuyuan County, Inner Mongolia, China
| | - Xuefeng Ren
- School of Public Health, Inner Mongolia Medical University, Hohhot, Inner Mongolia, China; Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo, Buffalo, NY, USA.
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40
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Arsenic-induced apoptosis in the p53-proficient and p53-deficient cells through differential modulation of NFkB pathway. Food Chem Toxicol 2018; 118:849-860. [PMID: 29944914 DOI: 10.1016/j.fct.2018.06.053] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 06/21/2018] [Accepted: 06/22/2018] [Indexed: 12/31/2022]
Abstract
Arsenic is a well-known environmental carcinogen and an effective chemotherapeutic agent. The underlying mechanism of this dual-effect, however, is not fully understood. In this study, we applied mouse p53+/+ and p53-/- cells to examine the NFκB pathway and proinflammatory cytokines after arsenic treatment. Arsenic reduced cell viability and increased more apoptosis in the p53-/- cells as compared to p53+/+ cells, which was correlated with activation of SAPK/JNK, p38 MAPK, and AKT pathways. A transcriptional regulatory network analysis revealed that arsenic activated transcription regulatory elements E2F, Egr1, Trp53, Stat6, Bcl6, Creb2 and ATF4 in the p53+/+ cells, while in the p53-/- cells, arsenic treatment altered transcription factors NFκB, Pparg, Creb2, ATF4, and Egr1. We observed dynamic changes in phosphorylated NFκB p65 (p-NFκB p65) and phosphorylated IKKαβ (p-IKKαβ) in both genotypes from 4 h to 24 h after treatment, significant decreases of p-NFκB p65 and p-IKKαβ in the p53-/- cells, whereas increases of p-NFκB p65 and p-IKKαβ were observed in the p53+/+ cells. Our study confirmed the differential modulation of NFκB pathway by arsenic in the p53+/+ or p53-/- cells and this observation of the differential mechanism of cell death between the p53+/+ and p53-/- cells might be linked to the unique ability of arsenic to act as both a carcinogen and a chemotherapeutic agent.
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41
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Jurdziak M, Gać P, Poręba M, Szymańska-Chabowska A, Mazur G, Poręba R. Concentration of Thyrotropic Hormone in Persons Occupationally Exposed to Lead, Cadmium and Arsenic. Biol Trace Elem Res 2018; 182:196-203. [PMID: 28726072 PMCID: PMC5838128 DOI: 10.1007/s12011-017-1096-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2016] [Accepted: 07/06/2017] [Indexed: 02/04/2023]
Abstract
Thyroid hormones are essential for body homeostasis. The scientific literature contains restricted proofs for effects of environmental chemical factors on thyroid function. The present study aimed at evaluating the relationship between toxicological parameters and concentration of thyrotropic hormone in persons occupationally exposed to lead, cadmium and arsenic. The studies were conducted on 102 consecutive workers occupationally exposed to lead, cadmium and arsenic (mean age 45.08 ± 9.87 years). The estimated parameters characterizing occupational exposure to metals included blood cadmium concentration (Cd-B), blood lead concentration (Pb-B), blood zinc protoporphyrin concentration (ZnPP) and urine arsenic concentration (As-U). Thyroid function was evaluated using the parameter employed in screening studies, the blood thyrotropic hormone concentration (TSH). No differences were disclosed in mean values of toxicological parameters between the subgroup of persons occupationally exposed to lead, cadmium and arsenic with TSH in and out of the accepted normal values. Logistic regression demonstrated that higher blood total bilirubin concentrations (ORu = 4.101; p = 0.025) and higher Cd-B (ORu = 1.532; p = 0.027) represented independent risk factors of abnormal values of TSH in this group. In conclusion, in the group of workers exposed to lead, cadmium and arsenic, higher blood cadmium concentration seems to augment the risk of abnormal hormonal thyroid function.
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Affiliation(s)
- Marta Jurdziak
- Department of Internal Medicine, Occupational Diseases and Hypertension, Wroclaw Medical University, Borowska 213, 50-556, Wroclaw, Poland
| | - Paweł Gać
- Department of Hygiene, Wroclaw Medical University, Mikulicza-Radeckiego 7, 50-368, Wroclaw, Poland.
| | - Małgorzata Poręba
- Department of Pathophysiology, Wroclaw Medical University, Marcinkowskiego 1, 50-368, Wroclaw, Poland
| | - Anna Szymańska-Chabowska
- Department of Internal Medicine, Occupational Diseases and Hypertension, Wroclaw Medical University, Borowska 213, 50-556, Wroclaw, Poland
| | - Grzegorz Mazur
- Department of Internal Medicine, Occupational Diseases and Hypertension, Wroclaw Medical University, Borowska 213, 50-556, Wroclaw, Poland
| | - Rafał Poręba
- Department of Internal Medicine, Occupational Diseases and Hypertension, Wroclaw Medical University, Borowska 213, 50-556, Wroclaw, Poland
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42
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Takahashi N, Yoshida T, Kojima S, Yamaguchi S, Ohtsuka R, Takeda M, Kosaka T, Harada T. Pathological and Clinical Pathological Changes Induced by Four-week, Repeated-dose, Oral Administration of the Wood Preservative Chromated Copper Arsenate in Wistar Rats. Toxicol Pathol 2018; 46:312-323. [PMID: 29587599 DOI: 10.1177/0192623318765392] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Chromated copper arsenate (CCA) is used as a wood preservative worldwide. Exposure to it may adversely affect human health. Some events have increased human exposure to CCA, including the Great East Japan Earthquake, which generated a large amount of lumber debris from CCA-treated woods. We elucidated the toxicity due to daily exposure to CCA over a 4-week period at doses of 0, 8, 40, and 80 mg/kg/day in Wistar Hannover rats. Chromium (Cr) and arsenic (As), but not copper, were detected in the plasma samples of rats treated with various doses of CCA. Males and females showed sedation, and males had poor body weight gain. The clinical pathologies observed in both sexes included hypochromic and microcytic anemia, hepatic and renal dysfunction, and changes in lipid and glucose levels. Histopathologically, males and females showed forestomach hyperkeratosis, mucosal epithelial hyperplasia in the small intestine, rectal goblet cell hypertrophy, and lipofuscin deposition in the proximal renal tubule. Females showed diffuse hepatocellular hypertrophy with increased 8-hydroxydeoxyguanosine levels. These results indicated that oral administration of CCA mainly affected hematopoietic, gastrointestinal, hepatic, and renal systems owing to the toxic effects of As and/or Cr. Major toxic effects were observed in both sexes receiving 40 and 80 mg/kg/day.
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Affiliation(s)
- Naofumi Takahashi
- 1 The Institute of Environmental Toxicology, Joso-shi, Ibaraki, Japan
| | - Toshinori Yoshida
- 2 Laboratory of Veterinary Pathology, Tokyo University of Agriculture and Technology, Fuchu-shi, Tokyo, Japan
| | - Sayuri Kojima
- 1 The Institute of Environmental Toxicology, Joso-shi, Ibaraki, Japan
| | - Satoru Yamaguchi
- 1 The Institute of Environmental Toxicology, Joso-shi, Ibaraki, Japan
| | - Ryoichi Ohtsuka
- 1 The Institute of Environmental Toxicology, Joso-shi, Ibaraki, Japan
| | - Makio Takeda
- 1 The Institute of Environmental Toxicology, Joso-shi, Ibaraki, Japan
| | - Tadashi Kosaka
- 1 The Institute of Environmental Toxicology, Joso-shi, Ibaraki, Japan
| | - Takanori Harada
- 1 The Institute of Environmental Toxicology, Joso-shi, Ibaraki, Japan
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43
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Xiao T, Xue J, Shi M, Chen C, Luo F, Xu H, Chen X, Sun B, Sun Q, Yang Q, Dai X, Zhang A, Tang H, Liu Q. Circ008913,viamiR-889 regulation of DAB2IP/ZEB1, is involved in the arsenite-induced acquisition of CSC-like properties by human keratinocytes in carcinogenesis. Metallomics 2018; 10:1328-1338. [DOI: 10.1039/c8mt00207j] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Circ008913,viamiR-889 regulation of DAB2IP/ZEB1, is involved in the arsenite-induced acquisition of CSC-like properties and the neoplastic transformation.
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44
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Chen C, Luo F, Yang Q, Wang D, Yang P, Xue J, Dai X, Liu X, Xu H, Lu J, Zhang A, Liu Q. NF-κB-regulated miR-155, via repression of QKI, contributes to the acquisition of CSC-like phenotype during the neoplastic transformation of hepatic cells induced by arsenite. Mol Carcinog 2017; 57:483-493. [DOI: 10.1002/mc.22772] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Revised: 12/04/2017] [Accepted: 12/07/2017] [Indexed: 12/16/2022]
Affiliation(s)
- Chao Chen
- Institute of Toxicology; School of Public Health; Nanjing Medical University; Nanjing Jiangsu People's Republic of China
- The Key Laboratory of Modern Toxicology; Ministry of Education; School of Public Health; Nanjing Medical University; Nanjing Jiangsu People's Republic of China
| | - Fei Luo
- Institute of Toxicology; School of Public Health; Nanjing Medical University; Nanjing Jiangsu People's Republic of China
- The Key Laboratory of Modern Toxicology; Ministry of Education; School of Public Health; Nanjing Medical University; Nanjing Jiangsu People's Republic of China
| | - Qianlei Yang
- Institute of Toxicology; School of Public Health; Nanjing Medical University; Nanjing Jiangsu People's Republic of China
- The Key Laboratory of Modern Toxicology; Ministry of Education; School of Public Health; Nanjing Medical University; Nanjing Jiangsu People's Republic of China
| | - Dapeng Wang
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control; Ministry of Education; School of Public Health; Guizhou Medical University; Guiyang Guizhou People's Republic of China
| | - Ping Yang
- The School of Public Health, Institute for Chemical Carcinogenesis; Guangzhou Medical University; Guangzhou Guangdong People's Republic China
| | - Junchao Xue
- Institute of Toxicology; School of Public Health; Nanjing Medical University; Nanjing Jiangsu People's Republic of China
- The Key Laboratory of Modern Toxicology; Ministry of Education; School of Public Health; Nanjing Medical University; Nanjing Jiangsu People's Republic of China
| | - Xiangyu Dai
- Institute of Toxicology; School of Public Health; Nanjing Medical University; Nanjing Jiangsu People's Republic of China
- The Key Laboratory of Modern Toxicology; Ministry of Education; School of Public Health; Nanjing Medical University; Nanjing Jiangsu People's Republic of China
| | - Xinlu Liu
- Institute of Toxicology; School of Public Health; Nanjing Medical University; Nanjing Jiangsu People's Republic of China
- The Key Laboratory of Modern Toxicology; Ministry of Education; School of Public Health; Nanjing Medical University; Nanjing Jiangsu People's Republic of China
| | - Hui Xu
- Institute of Toxicology; School of Public Health; Nanjing Medical University; Nanjing Jiangsu People's Republic of China
- The Key Laboratory of Modern Toxicology; Ministry of Education; School of Public Health; Nanjing Medical University; Nanjing Jiangsu People's Republic of China
| | - Jiachun Lu
- The School of Public Health, Institute for Chemical Carcinogenesis; Guangzhou Medical University; Guangzhou Guangdong People's Republic China
| | - Aihua Zhang
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control; Ministry of Education; School of Public Health; Guizhou Medical University; Guiyang Guizhou People's Republic of China
| | - Qizhan Liu
- Institute of Toxicology; School of Public Health; Nanjing Medical University; Nanjing Jiangsu People's Republic of China
- The Key Laboratory of Modern Toxicology; Ministry of Education; School of Public Health; Nanjing Medical University; Nanjing Jiangsu People's Republic of China
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45
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Ameliorating effects of Raphanus sativus leaves on sodium arsenite-induced perturbation of blood indices in Swiss albino mice. Asian Pac J Trop Biomed 2017. [DOI: 10.1016/j.apjtb.2017.09.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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46
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Urrialde V, Alburquerque B, Guirao-Abad JP, Pla J, Argüelles JC, Alonso-Monge R. Arsenic inorganic compounds cause oxidative stress mediated by the transcription factor PHO4 in Candida albicans. Microbiol Res 2017; 203:10-18. [DOI: 10.1016/j.micres.2017.06.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 05/08/2017] [Accepted: 06/14/2017] [Indexed: 10/19/2022]
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Eckstein M, Rea M, Fondufe-Mittendorf YN. Transient and permanent changes in DNA methylation patterns in inorganic arsenic-mediated epithelial-to-mesenchymal transition. Toxicol Appl Pharmacol 2017; 331:6-17. [PMID: 28336213 PMCID: PMC5747965 DOI: 10.1016/j.taap.2017.03.017] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Accepted: 03/16/2017] [Indexed: 12/12/2022]
Abstract
Chronic low dose inorganic arsenic exposure causes cells to take on an epithelial-to-mesenchymal phenotype, which is a crucial process in carcinogenesis. Inorganic arsenic is not a mutagen and thus epigenetic alterations have been implicated in this process. Indeed, during the epithelial-to-mesenchymal transition, morphologic changes to cells correlate with changes in chromatin structure and gene expression, ultimately driving this process. However, studies on the effects of inorganic arsenic exposure/withdrawal on the epithelial-to-mesenchymal transition and the impact of epigenetic alterations in this process are limited. In this study we used high-resolution microarray analysis to measure the changes in DNA methylation in cells undergoing inorganic arsenic-induced epithelial-to-mesenchymal transition, and on the reversal of this process, after removal of the inorganic arsenic exposure. We found that cells exposed to chronic, low-dose inorganic arsenic exposure showed 30,530 sites were differentially methylated, and with inorganic arsenic withdrawal several differential methylated sites were reversed, albeit not completely. Furthermore, these changes in DNA methylation mainly correlated with changes in gene expression at most sites tested but not at all. This study suggests that DNA methylation changes on gene expression are not clear-cut and provide a platform to begin to uncover the relationship between DNA methylation and gene expression, specifically within the context of inorganic arsenic treatment.
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Affiliation(s)
- Meredith Eckstein
- Department of Molecular and Cellular Biochemistry, University of Kentucky, Lexington, KY 40536, USA
| | - Matthew Rea
- Department of Molecular and Cellular Biochemistry, University of Kentucky, Lexington, KY 40536, USA
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Impaired autophagic flux and p62-mediated EMT are involved in arsenite-induced transformation of L-02 cells. Toxicol Appl Pharmacol 2017; 334:75-87. [PMID: 28888487 DOI: 10.1016/j.taap.2017.09.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2017] [Revised: 08/29/2017] [Accepted: 09/05/2017] [Indexed: 12/30/2022]
Abstract
Autophagy is a catabolic process essential for preserving cellular homeostasis, and the epithelial-to-mesenchymal transition (EMT) is involved during tissue development and cancer progression. In arsenite-treated human hepatic epithelial (L-02) cells, arsenite reduced the autophagic flux, which caused accumulation of p62, an adaptor and receptor of autophagy. Further, in arsenite-transformed L-02 cells, the levels of E-cadherin were attenuated, but the levels of vimentin, which is expressed in mesenchymal cells, and Snail, a transcription regulator of the EMT, were up-regulated. Thus, after chronic exposure of L-02 cells to arsenite, the impaired autophagic flux induced the accumulation of p62, which up-regulated the expression of Snail, a protein involved in arsenite-induced EMT of these cells. Knockdown of p62 by siRNA reversed the arsenite-induced EMT and decreased the capacities of arsenite-transformed L-02 cells for colony formation and invasion and migration. Therefore, in arsenite-induced transformation of L-02 cells, the accumulation of p62, by impairing autophagic flux, mediates the EMT via Snail. These results provide a previously unknown mechanism underlying arsenic toxicity and carcinogenicity.
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49
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Dani SU, Walter GF. Chronic arsenic intoxication diagnostic score (CAsIDS). J Appl Toxicol 2017; 38:122-144. [DOI: 10.1002/jat.3512] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Revised: 07/02/2017] [Accepted: 07/12/2017] [Indexed: 12/20/2022]
Affiliation(s)
- Sergio Ulhoa Dani
- Medawar Institute for Medical and Environmental Research; Acangau Foundation; Paracatu MG Brazil
- Department of General Internal Medicine; St. Gallen Cantonal Hospital; Switzerland
- PizolCare Praxis Wartau; Trübbach Switzerland
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50
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Aktar S, Jahan M, Alam S, Mohanto NC, Arefin A, Rahman A, Haque A, Himeno S, Hossain K, Saud ZA. Individual and Combined Effects of Arsenic and Lead on Behavioral and Biochemical Changes in Mice. Biol Trace Elem Res 2017; 177:288-296. [PMID: 27787814 DOI: 10.1007/s12011-016-0883-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Accepted: 10/19/2016] [Indexed: 01/15/2023]
Abstract
Arsenic (As) toxicity has caused an environmental tragedy affecting millions of people in the world. Little is known about the toxic effects of As on neurobehavioral and biochemical changes in vivo. Along this line of metal toxicity, co-exposure of lead (Pb) could aggravate the situation in the host. The present study was designed to explore the combined effects of As and Pb on behavioral changes like anxiety, spatial memory and learning impairment, and blood indices related to organ dysfunction. Exposure of mice to As (10 mg/kg body weight), Pb (10 mg/kg body weight), and As + Pb via drinking water significantly decreased the time spent exploring the open arms while it increased the time spent in the closed arms compared to control mice in the elevated plus maze. The mean latency time of the control group to find the platform decreased significantly during the learning for 7 days compared to all three treated groups in the Morris water maze test, and the As-exposed group spent significantly less time in the desired quadrant as compared to the control group in the probe trial. Both metals posed an anxiety-like behavior and deficits in spatial memory and learning, and also altered blood indices related to liver and kidney dysfunction, and a combined exposure of these metals inhibited the individual accumulation of As and Pb. Taken together, these data suggest that As has more toxic effects on neurobehavioral and biochemical changes than Pb, and there may be antagonism in the effects and accumulation between these two toxicants.
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Affiliation(s)
- Sharmin Aktar
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
- Department of Biochemistry and Molecular Biology, Mawlana Bhashani Science and Technology University, Santosh, Tangail, 1902, Bangladesh
| | - Momotaj Jahan
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Shahnur Alam
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Nayan Chandra Mohanto
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Afroza Arefin
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Atiqur Rahman
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Azizul Haque
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC, USA
| | - Seiichiro Himeno
- Laboratory of Molecular Nutrition and Toxicology, Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima, 770-8514, Japan
| | - Khaled Hossain
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Zahangir Alam Saud
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh.
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