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Belhadj Z, Akther T, Wang Z, Xie J. Characterization of a deazaflavin analog as a potent inhibitor of multidrug resistance-associated protein 1. Biomed Pharmacother 2024; 178:117167. [PMID: 39032285 DOI: 10.1016/j.biopha.2024.117167] [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: 02/14/2024] [Revised: 06/20/2024] [Accepted: 07/15/2024] [Indexed: 07/23/2024] Open
Abstract
Selective inhibition of overexpressed ATP binding cassette (ABC) transporters is an attractive approach to enhancing the efficacy of chemotherapeutics in multidrug resistant cancers. Previously, we reported that the cancer sensitizing effect of deazaflavin analogs, an important chemotype for developing combination treatments with topoisomerase II (TOP2) poisons, is associated with increased intracellular drug accumulation. Here we report the characterization of ZW-1226, a deazaflavin analog, as a potent inhibitor of multidrug resistance-associated protein 1 (MRP1). Specifically, ZW-1226 inhibited MRP1 with a 16-fold higher potency than the most widely used positive control MK-571 in vesicular transport assay and displayed excellent selectivity indices exceeding 100 over other major ABC transporters, including P-glycoprotein (P-gp), breast cancer resistance protein (BCRP), MRP2 and MRP3. Mechanistically, we revealed that its MRP1 inhibitory action requires the participation of GSH. In chemo-sensitization test, ZW-1226 fully reversed the MRP1-mediated drug resistance to TOP2 poisons etoposide (ETP) and doxorubicin (DOX) in H69AR cells and conferred CC50s comparable to those in the sensitive parental NCI-H69 cells. The sensitization was associated with boosted intracellular accumulation of ETP and DOX and elevated endogenous GSH. Moreover, ZW-1226 showed potential to occupy the leukotriene C4 binding site in molecular docking with bovine MRP1, presumably with the help of GSH. Lastly, ZW-1226 exhibited high tissue to plasma partitions in mice but did not alter ETP distribution to normal tissues, suggesting it could be a viable lead with desirable pharmacokinetic properties to warrant further investigation.
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Affiliation(s)
- Zakia Belhadj
- Center for Drug Design, College of Pharmacy, University of Minnesota, Minneapolis, MN 55455, USA
| | - Thamina Akther
- Center for Drug Design, College of Pharmacy, University of Minnesota, Minneapolis, MN 55455, USA
| | - Zhengqiang Wang
- Center for Drug Design, College of Pharmacy, University of Minnesota, Minneapolis, MN 55455, USA
| | - Jiashu Xie
- Center for Drug Design, College of Pharmacy, University of Minnesota, Minneapolis, MN 55455, USA.
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2
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González-Martínez F, Johnson-Restrepo B, Quiñones LA. Arsenic inorganic exposure, metabolism, genetic biomarkers and its impact on human health: A mini-review. Toxicol Lett 2024; 398:105-117. [PMID: 38901734 DOI: 10.1016/j.toxlet.2024.06.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 04/14/2024] [Accepted: 06/17/2024] [Indexed: 06/22/2024]
Abstract
Inorganic arsenic species exist in the environment as a result of both natural sources, such as volcanic and geothermal activities, and geological formations, as well as anthropogenic activities, including smelting, exploration of fossil fuels, coal burning, mining, and the use of pesticides. These species deposit in water, rocks, soil, sediments, and the atmosphere. Arsenic-contaminated drinking water is a global public health issue because of its natural prevalence and toxicity. Therefore, chronic exposure to arsenic can have deleterious effect on humans, including cancer and other diseases. This work describes the mechanisms of environmental exposure to arsenic, molecular regulatory factors involved in its metabolism, genetic polymorphisms affecting individual susceptibility and the toxic effects of arsenic on human health (oxidative stress, DNA damage and cancer). We conclude that the role of single nucleotide variants affecting urinary excretion of arsenic metabolites are highly relevant and can be used as biomarkers of the intracellular retention rates of arsenic, showing new avenues of research in this field.
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Affiliation(s)
- Farith González-Martínez
- Faculty of Dentistry and Faculty of Exact Sciences, University of Cartagena, Colombia; Public Health Research Group, University of Cartagena, Colombia; Latin American Network for Implementation and Validation of Clinical Pharmacogenomics Guidelines (RELIVAF-CYTED), Santiago, Chile.
| | | | - Luis A Quiñones
- Latin American Network for Implementation and Validation of Clinical Pharmacogenomics Guidelines (RELIVAF-CYTED), Santiago, Chile; Laboratory of Chemical Carcinogenesis and Pharmacogenetics (CQF), Department of Basic-Clinical Oncology (DOBC), Faculty of Medicine, University of Chile, Chile; Department of Pharmaceutical Science and Technology, School of Chemical and Pharmaceutical Sciences, University of Chile, Chile.
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3
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Thévenod F, Lee WK. Cadmium transport by mammalian ATP-binding cassette transporters. Biometals 2024; 37:697-719. [PMID: 38319451 PMCID: PMC11101381 DOI: 10.1007/s10534-024-00582-5] [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: 09/15/2023] [Accepted: 01/04/2024] [Indexed: 02/07/2024]
Abstract
Cellular responses to toxic metals depend on metal accessibility to intracellular targets, reaching interaction sites, and the intracellular metal concentration, which is mainly determined by uptake pathways, binding/sequestration and efflux pathways. ATP-binding cassette (ABC) transporters are ubiquitous in the human body-usually in epithelia-and are responsible for the transfer of indispensable physiological substrates (e.g. lipids and heme), protection against potentially toxic substances, maintenance of fluid composition, and excretion of metabolic waste products. Derailed regulation and gene variants of ABC transporters culminate in a wide array of pathophysiological disease states, such as oncogenic multidrug resistance or cystic fibrosis. Cadmium (Cd) has no known physiological role in mammalians and poses a health risk due to its release into the environment as a result of industrial activities, and eventually passes into the food chain. Epithelial cells, especially within the liver, lungs, gastrointestinal tract and kidneys, are particularly susceptible to the multifaceted effects of Cd because of the plethora of uptake pathways available. Pertinent to their broad substrate spectra, ABC transporters represent a major cellular efflux pathway for Cd and Cd complexes. In this review, we summarize current knowledge concerning transport of Cd and its complexes (mainly Cd bound to glutathione) by the ABC transporters ABCB1 (P-glycoprotein, MDR1), ABCB6, ABCC1 (multidrug resistance related protein 1, MRP1), ABCC7 (cystic fibrosis transmembrane regulator, CFTR), and ABCG2 (breast cancer related protein, BCRP). Potential detoxification strategies underlying ABC transporter-mediated efflux of Cd and Cd complexes are discussed.
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Affiliation(s)
- Frank Thévenod
- Institute for Physiology, Pathophysiology and Toxicology & ZBAF, Witten/Herdecke University, 58453, Witten, Germany
- Physiology and Pathophysiology of Cells and Membranes, Medical School OWL, Bielefeld University, Morgenbreede 1, 33615, Bielefeld, Germany
| | - Wing-Kee Lee
- Physiology and Pathophysiology of Cells and Membranes, Medical School OWL, Bielefeld University, Morgenbreede 1, 33615, Bielefeld, Germany.
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4
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Liu F, Deng Y, Wang A, Yang T, Ke H, Tang Y, Wu H, Chen H. Harness arsenic in medicine: current status of arsenicals and recent advances in drug delivery. Expert Opin Drug Deliv 2024; 21:867-880. [PMID: 38913024 DOI: 10.1080/17425247.2024.2372363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Accepted: 06/21/2024] [Indexed: 06/25/2024]
Abstract
INTRODUCTION Arsenicals have a special place in the history of human health, acting both as poison and medicine. Having been used to treat a variety of diseases in the past, the success of arsenic trioxide (ATO) in treating acute promyelocytic leukemia (APL) in the last century marked its use as a drug in modern medicine. To expand their role against cancer, there have been clinical uses of arsenicals worldwide and progress in the development of drug delivery for various malignancies, especially solid tumors. AREAS COVERED In this review, conducted on Google Scholar [1977-2024], we start with various forms of arsenicals, highlighting the well-known ATO. The mechanism of action of arsenicals in cancer therapy is then overviewed. A summary of the research progress in developing new delivery approaches (e.g. polymers, inorganic frameworks, and biomacromolecules) in recent years is provided, addressing the challenges and opportunities in treating various malignant tumors. EXPERT OPINION Reducing toxicity and enhancing therapeutic efficacy are guidelines for designing and developing new arsenicals and drug delivery systems. They have shown potential in the fight against cancer and emerging pathogens. New technologies and strategies can help us harness the potency of arsenicals and make better products.
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Affiliation(s)
- Fan Liu
- Jiangsu Key Laboratory of Neuropsychiatric Diseases, Jiangsu Province Engineering Research Center of Precision Diagnostics and Therapeutics Development, and College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Yibin Deng
- Jiangsu Key Laboratory of Neuropsychiatric Diseases, Jiangsu Province Engineering Research Center of Precision Diagnostics and Therapeutics Development, and College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Anru Wang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases, Jiangsu Province Engineering Research Center of Precision Diagnostics and Therapeutics Development, and College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Tao Yang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases, Jiangsu Province Engineering Research Center of Precision Diagnostics and Therapeutics Development, and College of Pharmaceutical Sciences, Soochow University, Suzhou, China
- State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou, China
| | - Hengte Ke
- Jiangsu Key Laboratory of Neuropsychiatric Diseases, Jiangsu Province Engineering Research Center of Precision Diagnostics and Therapeutics Development, and College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Yongan Tang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases, Jiangsu Province Engineering Research Center of Precision Diagnostics and Therapeutics Development, and College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Hong Wu
- Department of Pharmaceutical Analysis, School of Pharmacy, Air Force Medical University, Xi'an, China
| | - Huabing Chen
- Jiangsu Key Laboratory of Neuropsychiatric Diseases, Jiangsu Province Engineering Research Center of Precision Diagnostics and Therapeutics Development, and College of Pharmaceutical Sciences, Soochow University, Suzhou, China
- State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou, China
- Department of Pharmacy, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute for Interdisciplinary Drug Research and Translational Sciences, Soochow University, Suzhou, China
- Jiangsu Province Engineering Research Center of Precision Diagnostics and Therapeutics Development, Soochow University, Suzhou, China
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El-Ghiaty MA, Alqahtani MA, El-Mahrouk SR, Isse FA, Alammari AH, El-Kadi AOS. Alteration of Hepatic Cytochrome P450 Expression and Arachidonic Acid Metabolism by Arsenic Trioxide (ATO) in C57BL/6 Mice. Biol Trace Elem Res 2024:10.1007/s12011-024-04225-1. [PMID: 38758479 DOI: 10.1007/s12011-024-04225-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 05/05/2024] [Indexed: 05/18/2024]
Abstract
The success of arsenic trioxide (ATO) in acute promyelocytic leukemia has driven a plethora studies to investigate its efficacy in other malignancies. However, the inherent toxicity of ATO limits the expansion of its clinical applications. Such toxicity may be linked to ATO-induced metabolic derangements of endogenous substrates. Therefore, the primary objective of this study was to investigate the effect of ATO on the hepatic formation of arachidonic acid (AA) metabolites, hydroxyeicosatetraenoic acids (HETEs), as well as their most notable producing machinery, cytochrome P450 (CYP) enzymes. For this purpose, C57BL/6 mice were intraperitoneally injected with 8 mg/kg ATO for 6 and 24 h. Total RNA was extracted from harvested liver tissues for qPCR analysis of target genes. Hepatic microsomal proteins underwent incubation with AA, followed by identification/quantification of the produced HETEs. ATO downregulated Cyp2e1, while induced Cyp2j9 and most of Cyp4a and Cyp4f, and this has resulted in a significant increase in 17(S)-HETE and 18(R)-HETE, while significantly decreased 18(S)-HETE. Additionally, ATO induced Cyp4a10, Cyp4a14, Cyp4f13, Cyp4f16, and Cyp4f18, resulting in a significant elevation in 20-HETE formation. In conclusion, ATO altered hepatic AA metabolites formation through modulating the underlying network of CYP enzymes. Modifying the homeostatic production of bioactive AA metabolites, such as HETEs, may entail toxic events that can, at least partly, explain ATO-induced hepatotoxicity. Such modification can also compromise the overall body tolerability to ATO treatment in cancer patients.
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Affiliation(s)
- Mahmoud A El-Ghiaty
- Faculty of Pharmacy and Pharmaceutical Sciences, 2142J Katz Group-Rexall Centre for Pharmacy and Health Research, University of Alberta, Edmonton, AB, Canada
| | - Mohammed A Alqahtani
- Faculty of Pharmacy and Pharmaceutical Sciences, 2142J Katz Group-Rexall Centre for Pharmacy and Health Research, University of Alberta, Edmonton, AB, Canada
| | - Sara R El-Mahrouk
- Faculty of Pharmacy and Pharmaceutical Sciences, 2142J Katz Group-Rexall Centre for Pharmacy and Health Research, University of Alberta, Edmonton, AB, Canada
| | - Fadumo A Isse
- Faculty of Pharmacy and Pharmaceutical Sciences, 2142J Katz Group-Rexall Centre for Pharmacy and Health Research, University of Alberta, Edmonton, AB, Canada
| | - Ahmad H Alammari
- Faculty of Pharmacy and Pharmaceutical Sciences, 2142J Katz Group-Rexall Centre for Pharmacy and Health Research, University of Alberta, Edmonton, AB, Canada
| | - Ayman O S El-Kadi
- Faculty of Pharmacy and Pharmaceutical Sciences, 2142J Katz Group-Rexall Centre for Pharmacy and Health Research, University of Alberta, Edmonton, AB, Canada.
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6
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Jiang H, Gao Y, Chen X, Wang B, Xu Z, Li Y, Sun X, Liu K, Divsalar A, Cheung E, Jiang L, Hong Y, Ding X. Single-Cell Study Unveils Lead Lifespan in Blood Cell Populations Follows a Universal Lognormal Distribution with Individual Skewness. Anal Chem 2024; 96:668-675. [PMID: 38176010 DOI: 10.1021/acs.analchem.3c03441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
Lead is a widespread environmental hazard that can adversely affect multiple biological functions. Blood cells are the initial targets that face lead exposure. However, a systematic assessment of lead dynamics in blood cells at single-cell resolution is still absent. Herein, C57BL/6 mice were fed with lead-contaminated food. Peripheral blood was harvested at different days. Extracted red blood cells and leukocytes were stained with 19 metal-conjugated antibodies and analyzed by mass cytometry. We quantified the time-lapse lead levels in 12 major blood cell subpopulations and established the distribution of lead heterogeneity. Our results show that the lead levels in all major blood cell subtypes follow lognormal distributions but with distinctively individual skewness. The lognormal distribution suggests a multiplicative accumulation of lead with stochastic turnover of cells, which allows us to estimate the lead lifespan of different blood cell populations by calculating the distribution skewness. These findings suggest that lead accumulation by single blood cells follows a stochastic multiplicative process.
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Affiliation(s)
- Hui Jiang
- Nantong First People's Hospital and Nantong Hospital of Renji Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Nantong226006, P.R. China
- State Key Laboratory of Oncogenes and Related Genes, Institute for Personalized Medicine, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai200030, P.R. China
| | - Yingying Gao
- Nantong First People's Hospital and Nantong Hospital of Renji Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Nantong226006, P.R. China
- State Key Laboratory of Oncogenes and Related Genes, Institute for Personalized Medicine, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai200030, P.R. China
| | - Xiaoxiang Chen
- Nantong First People's Hospital and Nantong Hospital of Renji Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Nantong226006, P.R. China
- State Key Laboratory of Oncogenes and Related Genes, Institute for Personalized Medicine, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai200030, P.R. China
| | - Boqian Wang
- State Key Laboratory of Oncogenes and Related Genes, Institute for Personalized Medicine, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai200030, P.R. China
| | - Zhixiao Xu
- State Key Laboratory of Oncogenes and Related Genes, Institute for Personalized Medicine, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai200030, P.R. China
| | - Yiyang Li
- State Key Laboratory of Oncogenes and Related Genes, Institute for Personalized Medicine, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai200030, P.R. China
| | - Xinyi Sun
- State Key Laboratory of Oncogenes and Related Genes, Institute for Personalized Medicine, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai200030, P.R. China
| | - Kun Liu
- Department of Cardiology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai200080, P.R. China
| | - Adeleh Divsalar
- Department of Cell & Molecular Sciences, Faculty of Biological Sciences, Kharazmi University, Tehran15719-14911, Iran
| | - Edwin Cheung
- Cancer Centre, Centre for Precision Medicine Research and Training, Faculty of Health Sciences, University of Macau, Taipa999078, Macau SAR
| | - Lai Jiang
- Department of Anesthesiology and Surgical Intensive Care Unit, Xinhua Hospital, School of Medicine and School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai200092, China
| | - Yifan Hong
- State Key Laboratory of Oncogenes and Related Genes, Institute for Personalized Medicine, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai200030, P.R. China
- Institute of Molecular Physiology, Shenzhen Bay Laboratory, Shenzhen518132, P.R. China
| | - Xianting Ding
- Nantong First People's Hospital and Nantong Hospital of Renji Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Nantong226006, P.R. China
- State Key Laboratory of Oncogenes and Related Genes, Institute for Personalized Medicine, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai200030, P.R. China
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7
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McColl ER, Kwok J, Benowitz NL, Patten CA, Hughes CA, Koller KR, Flanagan CA, Thomas TK, Hiratsuka VY, Tyndale RF, Piquette-Miller M. The Effect of Tobacco Use on the Expression of Placental Transporters in Alaska Native Women. Clin Pharmacol Ther 2023; 113:634-642. [PMID: 36053152 PMCID: PMC10234256 DOI: 10.1002/cpt.2737] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 08/30/2022] [Indexed: 11/09/2022]
Abstract
Prenatal tobacco use among Alaska Native (AN) women has decreased substantially over the past two decades. Previous research suggests that providing AN women with feedback regarding fetal exposure to tobacco may further promote cessation. Transporters in the placenta regulate fetal exposure to nutrients and xenobiotics, including compounds associated with tobacco use. We examined whether prenatal tobacco use impacts transporter expression in the placenta, and whether this is influenced by fetal sex, degree of tobacco exposure, or transporter genotype. At delivery, we obtained placental samples from AN research participants who smoked cigarettes, used commercial chew or iqmik (oral tobacco), or did not use tobacco during pregnancy. Transporter expression was evaluated using qRT-PCR and Western blotting and tested for correlations between transcript levels and urinary biomarkers of tobacco use. The impact of BCRP/ABCG2 and OATP2B1/SLCO2B1 genotypes on protein expression was also examined. Oral tobacco use was associated with decreased P-gp and increased MRP1, MRP3, LAT1, and PMAT mRNA expression. Transcript levels of multiple transporters significantly correlated with tobacco biomarkers in maternal and fetal urine. In women carrying male fetuses, both smoking and oral tobacco were associated with decreased P-gp. Oral tobacco was also associated with decreased LAT1 in women carrying female fetuses. BCRP and OATP2B1 genotypes did not appear to impact protein expression. In conclusion, prenatal tobacco use is associated with altered expression of multiple placental transporters which differs by fetal sex. As transcript levels of multiple transporters were significantly correlated with tobacco use biomarkers, eliminating prenatal tobacco use should alleviate these changes.
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Affiliation(s)
- Eliza R. McColl
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON, Canada
| | - Jacinda Kwok
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON, Canada
| | - Neal L. Benowitz
- Department of Medicine, Division of Cardiology and Center for Tobacco Control Research and Education, University of California, San Francisco, San Francisco, CA, USA
| | - Christi A. Patten
- Department of Psychiatry and Psychology and Behavioral Health Research Program, Mayo Clinic, Rochester, MN, USA
| | - Christine A. Hughes
- Department of Psychiatry and Psychology and Behavioral Health Research Program, Mayo Clinic, Rochester, MN, USA
| | - Kathryn R. Koller
- Clinical and Research Services, Division of Community Health Services, Alaska Native Tribal Health Consortium (ANTHC), Anchorage, AK, USA
| | - Christie A. Flanagan
- Clinical and Research Services, Division of Community Health Services, Alaska Native Tribal Health Consortium (ANTHC), Anchorage, AK, USA
| | - Timothy K Thomas
- Clinical and Research Services, Division of Community Health Services, Alaska Native Tribal Health Consortium (ANTHC), Anchorage, AK, USA
| | | | - Rachel F. Tyndale
- Departments of Pharmacology and Toxicology, and Psychiatry, Temerty Faculty of Medicine, University of Toronto, and Centre for Addiction and Mental Health, Toronto, ON, Canada
| | - Micheline Piquette-Miller
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON, Canada
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8
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Takahashi N, Yamaguchi S, Ohtsuka R, Takeda M, Yoshida T, Kosaka T, Harada T. Gene expression analysis of antioxidant and DNA methylation on the rat liver after 4-week wood preservative chromated copper arsenate exposure. J Toxicol Pathol 2023; 36:31-43. [PMID: 36683727 PMCID: PMC9837468 DOI: 10.1293/tox.2022-0093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 09/16/2022] [Indexed: 01/13/2023] Open
Abstract
Our previous 4-week repeated dose toxicity study showed that wood preservative chromated copper arsenate (CCA) induced hepatocellular hypertrophy accompanied by biochemical hepatic dysfunction and an increase in oxidative stress marker, 8-hydroxydeoxyguanosine, in female rats. To further explore the molecular mechanisms of CCA hepatotoxicity, we analyzed 10%-buffered formalin-fixed liver samples from female rats for cell proliferation, apoptosis, and protein glutathionylation and conducted microarray analysis on frozen liver samples from female rats treated with 0 or 80 mg/kg/day of CCA. Chemical analysis revealed that dimethylated arsenical was the major metabolite in liver tissues of male and female rats. CCA increase labeling indices of proliferating cell nuclear antigen and decrease terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling accompanied with increased expression of protein glutathionylation, indicating a decrease in glutathione (GSH) in hepatocytes of female rats. Microarray analysis revealed that CCA altered gene expression of antioxidants, glutathione-S-transferase (GST), heat shock proteins and ubiquitin-proteasome pathway, cell proliferation, apoptosis, DNA methylation, cytochrome P450, and glucose and lipid metabolism in female rats. Increased expression of GSTs, including Gsta2, Gsta3, Mgst1, and Cdkn1b (p27), and decreased expression of the antioxidant Mt1, and DNA methylation Dnmt1, Dnmt3a, and Ctcf were confirmed in the liver of female rats in a dose-dependent manner. Methylation status of the promoter region of the Mt1 was not evidently changed between control and treatment groups. The results suggested that CCA decreased GSH and altered the expression of several genes, including antioxidants, GST, and DNA methylation, followed by impaired cell proliferation in the liver of female rats.
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Affiliation(s)
- Naofumi Takahashi
- The Institute of Environmental Toxicology, 4321
Uchimoriya-machi, Joso-shi, Ibaraki 303-0043, Japan,*Corresponding author: N Takahashi (e-mail: )
| | - Satoru Yamaguchi
- The Institute of Environmental Toxicology, 4321
Uchimoriya-machi, Joso-shi, Ibaraki 303-0043, Japan
| | - Ryouichi Ohtsuka
- The Institute of Environmental Toxicology, 4321
Uchimoriya-machi, Joso-shi, Ibaraki 303-0043, Japan
| | - Makio Takeda
- The Institute of Environmental Toxicology, 4321
Uchimoriya-machi, Joso-shi, Ibaraki 303-0043, Japan
| | - Toshinori Yoshida
- Laboratory of Veterinary Pathology, Tokyo University of
Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo 183-8509, Japan
| | - Tadashi Kosaka
- The Institute of Environmental Toxicology, 4321
Uchimoriya-machi, Joso-shi, Ibaraki 303-0043, Japan
| | - Takanori Harada
- The Institute of Environmental Toxicology, 4321
Uchimoriya-machi, Joso-shi, Ibaraki 303-0043, Japan
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9
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Gandhi D, Bhandari S, Mishra S, Tiwari RR, Rajasekaran S. Non-malignant respiratory illness associated with exposure to arsenic compounds in the environment. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2022; 94:103922. [PMID: 35779705 DOI: 10.1016/j.etap.2022.103922] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 06/22/2022] [Accepted: 06/25/2022] [Indexed: 06/15/2023]
Abstract
Arsenic (As), a toxic metalloid, primarily originates from both natural and anthropogenic activities. Reports suggested that millions of people globally exposed to high levels of naturally occurring As compounds via inhalation and ingestion. There is evidence that As is a well-known lung carcinogen. However, there has been relatively little evidence suggesting its non-malignant lung effects. This review comprehensively summarises current experimental and clinical studies implicating the association of As exposure and the development of several non-malignant lung diseases. Experimental studies provided evidence that As exposure induces redox imbalance, apoptosis, inflammatory response, epithelial-to-mesenchymal transition (EMT), and affected normal lung development through alteration of the components of intracellular signaling cascades. In addition, we also discuss the sources and possible mechanisms of As influx and efflux in the lung. Finally, current experimental studies on treatment strategies using phytochemicals and our perspective on future research with As are also discussed.
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Affiliation(s)
- Deepa Gandhi
- Department of Biochemistry, ICMR-National Institute for Research in Environmental, Health, Bhopal, Madhya Pradesh, India
| | - Sneha Bhandari
- Department of Biochemistry, ICMR-National Institute for Research in Environmental, Health, Bhopal, Madhya Pradesh, India
| | - Sehal Mishra
- Department of Biochemistry, ICMR-National Institute for Research in Environmental, Health, Bhopal, Madhya Pradesh, India
| | - Rajnarayan R Tiwari
- Department of Biochemistry, ICMR-National Institute for Research in Environmental, Health, Bhopal, Madhya Pradesh, India
| | - Subbiah Rajasekaran
- Department of Biochemistry, ICMR-National Institute for Research in Environmental, Health, Bhopal, Madhya Pradesh, India.
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10
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Hanssen KM, Haber M, Fletcher JI. Targeting multidrug resistance-associated protein 1 (MRP1)-expressing cancers: Beyond pharmacological inhibition. Drug Resist Updat 2021; 59:100795. [PMID: 34983733 DOI: 10.1016/j.drup.2021.100795] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 08/30/2021] [Accepted: 09/05/2021] [Indexed: 12/30/2022]
Abstract
Resistance to chemotherapy remains one of the most significant obstacles to successful cancer treatment. While inhibiting drug efflux mediated by ATP-binding cassette (ABC) transporters is a seemingly attractive and logical approach to combat multidrug resistance (MDR), small molecule inhibition of ABC transporters has so far failed to confer clinical benefit, despite considerable efforts by medicinal chemists, biologists, and clinicians. The long-sought treatment to eradicate cancers displaying ABC transporter overexpression may therefore lie within alternative targeting strategies. When aberrantly expressed, the ABC transporter multidrug resistance-associated protein 1 (MRP1, ABCC1) confers MDR, but can also shift cellular redox balance, leaving the cell vulnerable to select agents. Here, we explore the physiological roles of MRP1, the rational for targeting this transporter in cancer, the development of small molecule MRP1 inhibitors, and the most recent developments in alternative therapeutic approaches for targeting cancers with MRP1 overexpression. We discuss approaches that extend beyond simple MRP1 inhibition by exploiting the collateral sensitivity to glutathione depletion and ferroptosis, the rationale for targeting the shared transcriptional regulators of both MRP1 and glutathione biosynthesis, advances in gene silencing, and new molecules that modulate transporter activity to the detriment of the cancer cell. These strategies illustrate promising new approaches to address multidrug resistant disease that extend beyond the simple reversal of MDR and offer exciting routes for further research.
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Affiliation(s)
- Kimberley M Hanssen
- Children's Cancer Institute Australia, Lowy Cancer Research Centre, UNSW Sydney, Sydney, NSW, Australia; School of Women's and Children's Health, UNSW Sydney, Sydney, NSW, Australia
| | - Michelle Haber
- Children's Cancer Institute Australia, Lowy Cancer Research Centre, UNSW Sydney, Sydney, NSW, Australia; School of Women's and Children's Health, UNSW Sydney, Sydney, NSW, Australia
| | - Jamie I Fletcher
- Children's Cancer Institute Australia, Lowy Cancer Research Centre, UNSW Sydney, Sydney, NSW, Australia; School of Women's and Children's Health, UNSW Sydney, Sydney, NSW, Australia.
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11
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G Meselhy A, Sharma S, Guo Z, Singh G, Yuan H, Tripathi RD, Xing B, Musante C, White JC, Dhankher OP. Nanoscale Sulfur Improves Plant Growth and Reduces Arsenic Toxicity and Accumulation in Rice ( Oryza sativa L.). ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:13490-13503. [PMID: 34570468 DOI: 10.1021/acs.est.1c05495] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Rice is known to accumulate arsenic (As) in its grains, posing serious health concerns for billions of people globally. We studied the effect of nanoscale sulfur (NS) on rice seedlings and mature plants under As stress. NS application caused a 40% increase in seedling biomass and a 26% increase in seed yield of mature plants compared to untreated control plants. AsIII exposure caused severe toxicity to rice; however, coexposure of plants to AsIII and NS alleviated As toxicity, and growth was significantly improved. Rice seedlings treated with AsIII + NS produced 159 and 248% more shoot and root biomass, respectively, compared to plants exposed to AsIII alone. Further, AsIII + NS-treated seedlings accumulated 32 and 11% less As in root and shoot tissues, respectively, than the AsIII-alone treatment. Mature plants treated with AsIII + NS produced 76, 110, and 108% more dry shoot biomass, seed number, and seed yield, respectively, and accumulated 69, 38, 18, and 54% less total As in the root, shoot, flag leaves, and grains, respectively, compared to AsIII-alone-treated plants. A similar trend was observed in seedlings treated with AsV and NS. The ability of sulfur (S) to alleviate As toxicity and accumulation is clearly size dependent as NS could effectively reduce bioavailability and accumulation of As in rice via modulating the gene expression activity of As transport, S assimilatory, and glutathione synthesis pathways to facilitate AsIII detoxification. These results have significant environmental implications as NS application in agriculture has the potential to decrease As in the food chain and simultaneously enable crops to grow and produce higher yields on marginal and contaminated lands.
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Affiliation(s)
- Ahmed G Meselhy
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, Massachusetts 01003, United States
- Department of Biotechnology, Faculty of Agriculture, Al-Azhar University, Cairo 11651, Egypt
| | - Sudhir Sharma
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - Zhi Guo
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, Massachusetts 01003, United States
- Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences/ Key Laboratory for Crop and Animal Integrated Farming, Ministry of Agriculture, Nanjing 210014, China
| | - Gurpal Singh
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - Haiyan Yuan
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, Massachusetts 01003, United States
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China
| | - Rudra D Tripathi
- CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow 226001, Uttar Pradesh, India
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - Craig Musante
- The Connecticut Agricultural Experiment Station, New Haven, Connecticut 06511, United States
| | - Jason C White
- The Connecticut Agricultural Experiment Station, New Haven, Connecticut 06511, United States
| | - Om Parkash Dhankher
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, Massachusetts 01003, United States
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12
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Mehta K, Kaur B, Pandey KK, Dhar P, Kaler S. Resveratrol protects against inorganic arsenic-induced oxidative damage and cytoarchitectural alterations in female mouse hippocampus. Acta Histochem 2021; 123:151792. [PMID: 34634674 DOI: 10.1016/j.acthis.2021.151792] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 09/13/2021] [Accepted: 09/16/2021] [Indexed: 01/04/2023]
Abstract
Prolonged inorganic arsenic (iAs) exposure is widely associated with brain damage particularly in the hippocampus via oxidative and apoptotic pathways. Resveratrol (RES) has gained considerable attention because of its benefits to human health. However, its neuroprotective potential against iAs-induced toxicity in CA1 region of hippocampus remains unexplored. Therefore, we investigated the neuroprotective efficacy of RES against arsenic trioxide (As2O3)-induced adverse effects on neuronal morphology, apoptotic markers and oxidative stress parameters in mouse CA1 region (hippocampus). Adult female Swiss albino mice of reproductive maturity were orally exposed to either As2O3 (2 and 4 mg/kg bw) alone or in combination with RES (40 mg/kg bw) for a period of 45 days. After animal sacrifice on day 46, the perfusion fixed brain samples were used for the observation of neuronal morphology and studying the morphometric features. While the freshly dissected hippocampi were processed for biochemical estimation of oxidative stress markers and western blotting of apoptosis-associated proteins. Chronic iAs exposure led to significant decrease in Stratum Pyramidale layer thickness along with reduction in cell density and area of Pyramidal neurons in contrast to the controls. Biochemical analysis showed reduced hippocampal GSH content but no change in total nitrite (NO) levels following iAs exposure. Western blotting showed apparent changes in the expression levels of Bax and Bcl-2 proteins following iAs exposure, however the change was statistically insignificant. Contrastingly, iAs +RES co-treatment exhibited substantial reversal in morphological and biochemical observations. Together, these findings provide preliminary evidence of neuroprotective role of RES on structural and biochemical alterations pertaining to mouse hippocampus following chronic iAs exposure.
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Affiliation(s)
- K Mehta
- Department of Anatomy, All India Institute of Medical Sciences (AIIMS), New Delhi 110029, India
| | - B Kaur
- Department of Anatomy, All India Institute of Medical Sciences (AIIMS), New Delhi 110029, India
| | - K K Pandey
- Department of Anatomy, All India Institute of Medical Sciences (AIIMS), New Delhi 110029, India
| | - P Dhar
- Department of Anatomy, All India Institute of Medical Sciences (AIIMS), New Delhi 110029, India
| | - S Kaler
- Department of Anatomy, All India Institute of Medical Sciences (AIIMS), New Delhi 110029, India.
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13
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Rehman MU, Khan R, Khan A, Qamar W, Arafah A, Ahmad A, Ahmad A, Akhter R, Rinklebe J, Ahmad P. Fate of arsenic in living systems: Implications for sustainable and safe food chains. JOURNAL OF HAZARDOUS MATERIALS 2021; 417:126050. [PMID: 34229383 DOI: 10.1016/j.jhazmat.2021.126050] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 04/27/2021] [Accepted: 04/29/2021] [Indexed: 06/13/2023]
Abstract
Arsenic, a group 1 carcinogen for humans, is abundant as compared to other trace elements in the environment and is present mainly in the Earth's crust and soil. The arsenic distributions in different geographical regions are dependent on their geological histories. Anthropogenic activities also contribute significantly to arsenic release into the environment. Arsenic presents several complications to humans, animals, and plants. The physiology of plants and their growth and development are affected by arsenic. Arsenic is known to cause cancer and several types of organ toxicity, such as cardiotoxicity, nephrotoxicity, and hepatotoxicity. In the environment, arsenic exists in variable forms both as inorganic and organic species. From arsenic containing compartments, plants can absorb and accumulate arsenic. Crops grown on these contaminated soils pose several-fold higher toxicity to humans compared with drinking water if arsenic enters the food chain. Information regarding arsenic transfer at different trophic levels in food chains has not been summarized until now. The present review focuses on the food chain perspective of arsenic, which affects all components of the food chain during its course. The circumstances that facilitate arsenic accumulation in flora and fauna, as components of the food chain, are outlined in this review.
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Affiliation(s)
- Muneeb U Rehman
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia.
| | - Rehan Khan
- Department of Nano-Therapeutics, Institute of Nano Science & Technology, Habitat Centre, Phase 10, Sector 64, Mohali, Punjab 160062, India
| | - Andleeb Khan
- Department of Pharmacology and Toxicology, College of Pharmacy, Jazan University, Jazan 45142, Saudi Arabia
| | - Wajhul Qamar
- Department of Pharmacology and Toxicology and Central Lab, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Azher Arafah
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Anas Ahmad
- Department of Nano-Therapeutics, Institute of Nano Science & Technology, Habitat Centre, Phase 10, Sector 64, Mohali, Punjab 160062, India
| | - Ajaz Ahmad
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Rukhsana Akhter
- Department of Clinical Biochemistry, Govt. Degree College (Baramulla), Khawaja Bagh, Baramulla, Jammu and Kashmir, India
| | - Jörg Rinklebe
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water, and Waste-Management, Laboratory of Soil, and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany; Department of Environment, Energy and Geoinformatics, Sejong University, Seoul 05006, South Korea
| | - Parvaiz Ahmad
- Botany and Microbiology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
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14
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Qian S, Tan J, Zhou Q, Yin J, Li H, He Y. The Relationship Between GSTT1, GSTM1, GSTO1, GSTP1 and MTHFR Gene Polymorphisms and DNA Damage of BRCA1 and BRCA2 Genes in Arsenic-Exposed Workers. J Occup Environ Med 2021; 63:e177-e183. [PMID: 33443393 DOI: 10.1097/jom.0000000000002142] [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
OBJECTIVE To investigate the associations between genetic polymorphisms of GSTT1, GSTM1, GSTO1, GSTP1 and MTHFR genes and the DNA damage levels of BRCA1 and BRCA2 genes. METHODS Peripheral blood samples were used to measure DNA damage levels and genetic polymorphisms, and urine samples were collected to analyze arsenic metabolites in 79 arsenic-exposed workers and 24 non-arsenic-exposed workers. RESULTS The BRCA1 and BRCA2 damage levels in exposure group were significantly higher than that in control group. Significant associations were detected between GSTT1 and GSTO1 polymorphisms and DNA damage levels of BRCA1 and BRCA2 genes in subjects (P < 0.05). CONCLUSIONS Our findings suggest that the DNA damage levels of BRCA1 and BRCA2 genes may modulate by genetic variations of GSTT1 and GSTO1 when individuals are exposed to carcinogens, such as arsenic.
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Affiliation(s)
- Shuran Qian
- Department of Infectious Diseases, The Affiliated Hospital of Yunnan University (The Second People's Hospital of Yunnan), Kumming City, Yunnan, China (Dr Qian, Dr Li); Kunming Medical University, Kumming City, Yunnan, China (Dr Qian, Dr Tan, Dr Zhou, Dr Yin, Dr He)
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15
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Yu X, Tian X, Wang Y, Zhu C. Metal-metal interaction and metal toxicity: a comparison between mammalian and D. melanogaster. Xenobiotica 2021; 51:842-851. [PMID: 33929283 DOI: 10.1080/00498254.2021.1922781] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
1. Non-essential heavy metals such as mercury (Hg), arsenic (As), cadmium (Cd), and aluminium (Al) are useless to organisms and have shown extensive toxic effects. Previous studies show that two main molecular mechanisms of metal toxicity are oxidative stress and metal-metal interaction which can disrupt metal homeostasis.2. In this paper, we mainly illustrate metal toxicity and metal-metal interaction through examples in mammalians and D. melanogaster (fruit fly).3. We describe the interference of metal homeostasis by metal-metal interactions in three aspects including replacement, cellular transporter competition, and disruption of the regulation mechanism, and elaborate the mechanisms of metal toxicity to better deal with the challenges of heavy metal pollution and related health problems.
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Affiliation(s)
- Xiaoyu Yu
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
| | - Xianhan Tian
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
| | - Yiwen Wang
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
| | - Chunfeng Zhu
- School of Life Sciences, Tianjin University, Tianjin, China
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16
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Liu G, Song Y, Li C, Liu R, Chen Y, Yu L, Huang Q, Zhu D, Lu C, Yu X, Xiao C, Liu Y. Arsenic compounds: The wide application and mechanisms applied in acute promyelocytic leukemia and carcinogenic toxicology. Eur J Med Chem 2021; 221:113519. [PMID: 33984805 DOI: 10.1016/j.ejmech.2021.113519] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 04/08/2021] [Accepted: 04/27/2021] [Indexed: 12/12/2022]
Abstract
Arsenic (As), as well as its various compounds have been widely used for nearly 4000 years either as drugs or poisons. These compounds are valuable in the treatment of various diseases ranging from dermatosis to cancer, thereby emphasizing their important roles as therapeutic agents. The ability of As compounds, especially arsenic trioxide (ATO) in the treatment of acute promyelocytic leukemia (APL), has fundamentally altered people's understanding of the poison, and has become a major factor in the re-emergence of Western medicine candidates to treat leukemia and other solid tumors. However, long-term exposure to As has been correlated with numerous disadvantageous influences on health, particularly carcinogenesis. Importantly, accumulating evidence suggests that biotransformation of As, as a step to eliminate As from the human body, can induce alterations at the genetic and epigenetic levels, resulting in therapeutic effects or carcinogenesis. In this article, we aimed to provide a systematic overview of the primary contributions associated with As and its compounds, as well as the detailed mechanisms applied in APL cells and carcinogenic toxicology. This review may help to understand the underlying mechanisms and safe wide clinical applications of medicinal As along with its compounds.
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Affiliation(s)
- Guangzhi Liu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Yurong Song
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Chenxi Li
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Rui Liu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Youwen Chen
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Liuchunyang Yu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Qingcai Huang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Dongjie Zhu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Cheng Lu
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Xue Yu
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Cheng Xiao
- Institute of Clinical Medicine, China-Japan Friendship Hospital, Beijing, China
| | - Yuanyan Liu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, China.
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17
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Pearson SA, Cowan JA. Glutathione-coordinated metal complexes as substrates for cellular transporters. Metallomics 2021; 13:mfab015. [PMID: 33770183 PMCID: PMC8086996 DOI: 10.1093/mtomcs/mfab015] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 03/15/2021] [Indexed: 11/15/2022]
Abstract
Glutathione is the major thiol-containing species in both prokaryotes and eukaryotes and plays a wide variety of roles, including detoxification of metals by sequestration, reduction, and efflux. ABC transporters such as MRP1 and MRP2 detoxify the cell from certain metals by exporting the cations as a metal-glutathione complex. The ability of the bacterial Atm1 protein to efflux metal-glutathione complexes appears to have evolved over time to become the ABCB7 transporter in mammals, located in the inner mitochondrial membrane. No longer needed for the role of cellular detoxification, ABCB7 appears to be used to transport glutathione-coordinated iron-sulfur clusters from mitochondria to the cytosol.
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Affiliation(s)
- Stephen A Pearson
- The Ohio State University Biophysics Program, The Ohio State University, 484 West 12th Avenue, Columbus, OH 43210, USA
| | - J A Cowan
- The Ohio State University Biophysics Program, The Ohio State University, 484 West 12th Avenue, Columbus, OH 43210, USA
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, OH 43210, USA
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18
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Mondal P, Shaw P, Dey Bhowmik A, Bandyopadhyay A, Sudarshan M, Chakraborty A, Chattopadhyay A. Combined effect of arsenic and fluoride at environmentally relevant concentrations in zebrafish (Danio rerio) brain: Alterations in stress marker and apoptotic gene expression. CHEMOSPHERE 2021; 269:128678. [PMID: 33127104 DOI: 10.1016/j.chemosphere.2020.128678] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 10/13/2020] [Accepted: 10/15/2020] [Indexed: 06/11/2023]
Abstract
Arsenic and fluoride are two naturally occurring toxicants to which various organisms including a major part of the human populations are co-exposed to. However, interactions between them inside body are quite complicated and needs proper evaluation. Inconclusive reports regarding their combined effects on brain prompted us to conduct this study where we investigated their individual as well as combined effects on female zebrafish brain at environmentally relevant concentrations (50 μgL-1 arsenic trioxide and 15 mgL-1 sodium fluoride) after different time intervals (15, 30 and 60 days). Persistent near-basal level of GSH, least increased MDA content and catalase activity portrayed arsenic and fluoride co-exposure as less toxic which was corroborated with far less damage caused in the histoarchitecture of optic tectum region in midbrain. Stress-responsive genes viz., Nrf2 and Hsp70 were overexpressed after individual as well as combined exposures, indicating a common cellular response to combat the formed oxidative stresses. Biphasic response of AChE upon individual exposure confirmed their neurotoxic effects too. Expression profile of p53 (unaltered), Bax (lower or near-basal) and Bcl2 (comparatively higher), along with absence of DNA fragmentation indicated no induction of apoptosis in the co-exposed group. Tissue accumulation of arsenic and fluoride was significantly less in the brain of co-exposed zebrafish when compared to their individual exposures. This preliminary study indicates an antagonistic effect of these two toxicants in zebrafish brain and needs further studies involving oxidative stress independent markers to understand the detailed molecular mechanism.
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Affiliation(s)
- Paritosh Mondal
- Department of Zoology, Visva-Bharati, Santiniketan, 731235, West Bengal, India
| | - Pallab Shaw
- Department of Zoology, Visva-Bharati, Santiniketan, 731235, West Bengal, India
| | - Arpan Dey Bhowmik
- Department of Zoology, Visva-Bharati, Santiniketan, 731235, West Bengal, India
| | | | - Muthammal Sudarshan
- UGC-DAE Consortium for Scientific Research, Kolkata Centre, 3/LB-8, Bidhan Nagar, Kolkata, 700098, India
| | - Anindita Chakraborty
- UGC-DAE Consortium for Scientific Research, Kolkata Centre, 3/LB-8, Bidhan Nagar, Kolkata, 700098, India
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19
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Shao N, Song L, Sun X. Exosomal circ_PIP5K1A regulates the progression of non-small cell lung cancer and cisplatin sensitivity by miR-101/ABCC1 axis. Mol Cell Biochem 2021; 476:2253-2267. [PMID: 33570734 DOI: 10.1007/s11010-021-04083-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 01/25/2021] [Indexed: 01/16/2023]
Abstract
Circular RNAs (circRNAs) play vital roles in various types of cancer and chemosentivity. In the progression of carcinogenesis, exosomes are messengers for intercellular communication. The aim of this study was to explore the role of exosomal circRNA phosphatidylinositol-4-phosphate 5-kinase type 1 alpha (circ_PIP5K1A) in non-small cell lung cancer (NSCLC) progression and cisplatin sensitivity. The expression levels of circ_PIP5K1A, miR-101 and ATP binding cassette subfamily C member 1 (ABCC1) were detected by quantitative real-time polymerase chain reaction or western blot assay. Cell Counting Kit-8 assay was used to detect cell viability and 50% inhibitory concentration value of cisplatin. Cell migration, invasion, proliferation, and apoptosis were determined by wound healing assay, transwell assay, colony formation assay, and flow cytometry, respectively. A xenograft tumor model was established to explore the role of circ_PIP5K1A in vivo. Exosomes were detected using transmission electron microscopy analysis. The interaction between miR-101 and circ_PIP5K1A or ABCC1 was predicted by bioinformatics analysis and verified by dual-luciferase reporter assay and RNA pull-down assay. Circ_PIP5K1A and ABCC1 were overexpressed and miR-101 was downregulated in NSCLC tissues, serum samples, and cells. Knockdown of exosomal circ_PIP5K1A inhibited NSCLC cell proliferation, migration, and invasion and promoted apoptosis and cisplatin sensitivity. Likewise, circ_PIP5K1A downregulation inhibited tumor growth. MiR-101 was a direct target of circ_PIP5K1A, and its knockdown reversed the effects of circ_PIP5K1A silence on inhibition of NSCLC progression and promotion of cisplatin sensitivity. Moreover, ABCC1 was a downstream target of miR-101, and miR-101 overexpression inhibited the progression of NSCLC cells and increased cisplatin sensitivity by targeting ABCC1. Besides, circ_PIP5K1A positively regulated ABCC1 expression by sponging miR-101. Exosomal circ_PIP5K1A knockdown inhibited NSCLC progression and promoted cisplatin sensitivity by regulating miR-101/ABCC1 axis, providing a novel avenue for treatment of NSCLC.
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Affiliation(s)
- Na Shao
- Department of Oncology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, No. 324, Jingwuweiqi Road, Huaiyin District, Jinan, 250021, Shandong, China
| | - Liang Song
- Department of Thoracic Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China
| | - Xiaogang Sun
- Department of Oncology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, No. 324, Jingwuweiqi Road, Huaiyin District, Jinan, 250021, Shandong, China.
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20
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Abstract
Objective: Despite the controversial results regarding the amount of arsenic (As) in mineral trioxide aggregate (MTA) and MTA-like cements, it is prudent to assess the effect of this heavy metal on pulpal cells and search for methods to attenuate its toxicity. This study investigated the toxic effect of As on pulpal-like cells and evaluated the influence of reduced glutathione (GSH) on As-induced toxicity. Methods: The cytotoxicity of 50 µm As, 50 µm As+50 µM GSH, 50µm As+500 µM GSH or 50 µm As+5000 µM GSH on rat pulpal cells (RPC-C2A) was evaluated at 24 hours and 72 hours. Cell culture in fresh medium without experimental solution served as the control. Cell viability was measured by means of 3-(4.5-dimethylthiazol-2-yl)-2.5-diphenyltetrazolium bromide (MTT) assay and the optical density was measured with microplate reader. The morphology of the cultured cells was observed under phase contrast microscope. Cytotoxicity data were analyzed by two-way ANOVA and Tukey post hoc tests (P<0.05). Results: There were statistically significant differences in cell viability amongst the tested groups (P<0.05). As elicited remarkable toxic effect on pulpal cells, while 5000 µM GSH protected the cells from As-induced damage at 24-hour exposure time. The cultured control cells were polygonal-shaped; however, As-treated cells exhibited contracted and spherical morphology with increased intercellular spaces indicative of cellular death and decreased proliferation. Conclusion: As negatively affected the viability of pulpal cells; however, controlled concentration of GSH had a short-term protective effect against As-induced toxicity. Future research is warranted on the clinical use of GSH with MTA and MTA-like cements to minimize initial inflammation resulting from As release during the setting of the aforementioned cements thus enhancing the success of procedures where these cements are placed in direct contact with vital pulp tissues.
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21
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Recio‐Vega R, Hernandez‐Gonzalez S, Michel‐Ramirez G, Olivas‐Calderón E, Lantz RC, Gandolfi AJ, Amistadi MK. Association between the polymorphism of three genes involved in the methylation and efflux of arsenic (As3MT, MRP1, and P‐gp) with lung cancer in a Mexican cohort. J Appl Toxicol 2020; 41:1357-1366. [DOI: 10.1002/jat.4127] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 11/29/2020] [Accepted: 12/01/2020] [Indexed: 11/11/2022]
Affiliation(s)
- Rogelio Recio‐Vega
- Department of Environmental Health, Biomedical Research Center, School of Medicine University of Coahuila Torreon Coahuila Mexico
| | | | - Gladis Michel‐Ramirez
- Department of Environmental Health, Biomedical Research Center, School of Medicine University of Coahuila Torreon Coahuila Mexico
| | - Edgar Olivas‐Calderón
- Department of Environmental Health, Biomedical Research Center, School of Medicine University of Coahuila Torreon Coahuila Mexico
- School of Chemical Sciences University Juarez of Durango Gomez Palacio Durango Mexico
| | - R. Clark Lantz
- Southwest Environmental Health Science Center University of Arizona Tucson Arizona USA
- Department of Cellular and Molecular Medicine University of Arizona Tucson Arizona USA
| | - A. Jay Gandolfi
- Southwest Environmental Health Science Center University of Arizona Tucson Arizona USA
- Department of Pharmacology and Toxicology University of Arizona Tucson Arizona USA
| | - Mary Kay Amistadi
- Department of Soil, Water and Environmental Science University of Arizona Tucson Arizona USA
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22
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Ray A, Shelly A, Roy S, Mazumder S. Arsenic induced alteration in Mrp-1 like activity leads to zebrafish hepatocyte apoptosis: The cellular GSH connection. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2020; 79:103427. [PMID: 32470611 DOI: 10.1016/j.etap.2020.103427] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 03/19/2020] [Accepted: 05/24/2020] [Indexed: 06/11/2023]
Abstract
Multidrug-resistance protein-1 facilitates the efflux of arsenic conjugated with reduced glutathione nonetheless; the relation between Mrp-1 ATPase activity and cellular GSH levels is contentious. To study this, Mrp-1-ATPase activity was measured in 5 μM arsenic trioxide exposed zebrafish hepatocytes (ZFH) and correlated with intracellular GSH levels. Alongside, mrp-1 gene expression as well as Mrp-1 protein level was also monitored. Diverse mode of Mrp-1 inhibition was reflected from differential level of Km and Vmax of Mrp-1 at different time points. 3 h post-arsenic treatment demonstrated non-competitive inhibition. At 6 h, there was significant increase in Km and ZFH death, suggesting reduced binding affinity of Mrp-1 for ATP. Increased caspase-9-cytochromeC-ATP levels (putative apoptosome), reinforced ZFH apoptosis. The increase in Vmax coupled with reduced substrate affinity of Mrp-1 suggests malfunctioning in arsenic- tolerance mechanisms. We posit the triggering glutathione level regulate arsenic tolerance in ZFH. Irreversible impairment of ATP binding to Mrp-1 culminates in arsenic-induced ZFH apoptosis.
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Affiliation(s)
- Atish Ray
- Immunobiology Laboratory, Department of Zoology, University of Delhi, Delhi 110007, India.
| | - Asha Shelly
- Immunobiology Laboratory, Department of Zoology, University of Delhi, Delhi 110007, India.
| | - Sonali Roy
- Natural Product Chemistry Group, CSTD, CSIR North East Institute of Science & Technology, Jorhat 785006, India; National Institute of Pharmaceutical Education and Research, Guwahati 781125, India.
| | - Shibnath Mazumder
- Immunobiology Laboratory, Department of Zoology, University of Delhi, Delhi 110007, India; Faculty of Life Sciences & Biotechnology, South Asian University, New Delhi 110 021, India.
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Kim S, Kim S, Park YS, Park JO, Lim HY, Ahn JS, Lee J, Sun JM, Kang WK, Han R, Kim J, Ahn MJ. Phase I clinical trial of KML001 monotherapy in patients with advanced solid tumors. Expert Opin Investig Drugs 2020; 29:1059-1067. [PMID: 32735765 DOI: 10.1080/13543784.2020.1804855] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
BACKGROUND We evaluated the tolerability, pharmacokinetics (PK) and preliminary efficacy of KML001, an oral trivalent arsenical, as a monotherapy in patients with advanced solid tumors. RESEARCH DESIGN AND METHODS With a standard 3 + 3 design for dose-escalation stage, the planned dose levels of KML001 were 5, 7.5, 10, 12.5, and 15 mg/day for 28 days. Once the maximum tolerated dose was determined, 22 subjects were additionally enrolled for dose-expansion stage. PK analysis was performed in the 5, 10, and 15 mg/day cohort at the dose-escalation stage and also at the dose-expansion stage. Moreover, response was assessed using the standard RECIST 1.1. RESULTS A total of 45 Korean subjects were enrolled. No DLT was reported at the dose-escalation stage. Three DLTs, two cases of prolonged QTc interval and one of neutropenia, were reported in the 12.5 mg/day cohort at the dose-expansion stage. Higher total daily doses up to 12.5 mg/day of KML001 resulted in higher trough plasma concentrations. Among the 18 subjects who completed 2 cycles of therapy, 15 had progressive disease and 3 had stable disease. CONCLUSIONS Doses equal to or greater than 10 mg/day KML001 alone were tolerable and produced plasma concentrations higher than biologically relevant targets.
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Affiliation(s)
- Seokuee Kim
- Department of Clinical Pharmacology and Therapeutics, Samsung Medical Center , Seoul, Republic of Korea
| | - Sujong Kim
- Pharmaceutical Division, Komipharm International Co., Ltd ., Siheung, Republic of Korea
| | - Young Suk Park
- Division of Hematology and Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine , Seoul, Republic of Korea
| | - Joon Oh Park
- Division of Hematology and Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine , Seoul, Republic of Korea
| | - Ho Yeong Lim
- Division of Hematology and Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine , Seoul, Republic of Korea
| | - Jin Seok Ahn
- Division of Hematology and Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine , Seoul, Republic of Korea
| | - Jeeyun Lee
- Division of Hematology and Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine , Seoul, Republic of Korea
| | - Jong Mu Sun
- Division of Hematology and Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine , Seoul, Republic of Korea
| | - Won Ki Kang
- Division of Hematology and Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine , Seoul, Republic of Korea
| | - RaeO Han
- Pharmaceutical Division, Komipharm International Co., Ltd ., Siheung, Republic of Korea
| | - Jungryul Kim
- Department of Clinical Pharmacology and Therapeutics, Samsung Medical Center , Seoul, Republic of Korea.,Department of Clinical Research Design & Evaluation, SAIHST, Sungkyunkwan University , Seoul, Republic of Korea
| | - Myung-Ju Ahn
- Division of Hematology and Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine , Seoul, Republic of Korea
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24
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González-Martínez F, Sánchez-Rodas D, Varela NM, Sandoval CA, Quiñones LA, Johnson-Restrepo B. As3MT and GST Polymorphisms Influencing Arsenic Metabolism in Human Exposure to Drinking Groundwater. Int J Mol Sci 2020; 21:ijms21144832. [PMID: 32650499 PMCID: PMC7402318 DOI: 10.3390/ijms21144832] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 06/24/2020] [Accepted: 06/24/2020] [Indexed: 01/28/2023] Open
Abstract
The urinary arsenic metabolites may vary among individuals and the genetic factors have been reported to explain part of the variation. We assessed the influence of polymorphic variants of Arsenic-3-methyl-transferase and Glutathione-S-transferase on urinary arsenic metabolites. Twenty-two groundwater wells for human consumption from municipalities of Colombia were analyzed for assessed the exposure by lifetime average daily dose (LADD) (µg/kg bw/day). Surveys on 151 participants aged between 18 and 81 years old were applied to collect demographic information and other factors. In addition, genetic polymorphisms (GSTO2-rs156697, GSTP1-rs1695, As3MT-rs3740400, GSTT1 and GSTM1) were evaluated by real time and/or conventional PCR. Arsenic metabolites: AsIII, AsV, monomethylarsonic acid (MMA), and dimethylarsinic acid (DMA) were measured using HPLC-HG-AFS. The influence of polymorphic variants, LADD and other factors were tested using multivariate analyses. The median of total arsenic concentration in groundwater was of 33.3 μg/L and the median of LADD for the high exposure dose was 0.33 µg/kg bw/day. Univariate analyses among arsenic metabolites and genetic polymorphisms showed MMA concentrations higher in heterozygous and/or homozygous genotypes of As3MT compared to the wild-type genotype. Besides, DMA concentrations were lower in heterozygous and/or homozygous genotypes of GSTP1 compared to the wild-type genotype. Both DMA and MMA concentrations were higher in GSTM1-null genotypes compared to the active genotype. Multivariate analyses showed statistically significant association among interactions gene-gene and gene-covariates to modify the MMA and DMA excretion. Interactions between polymorphic variants As3MT*GSTM1 and GSTO2*GSTP1 could be potential modifiers of urinary excretion of arsenic and covariates as age, LADD, and alcohol consumption contribute to largely vary the arsenic individual metabolic capacity in exposed people.
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Affiliation(s)
- Farith González-Martínez
- Environmental Chemistry Research Group and Public Health Research Group, University of Cartagena, Cartagena 130015, Colombia;
- Latin American Network for Implementation and Validation of Clinical Pharmacogenomics Guidelines (RELIVAF-CYTED), 28015 Madrid, Spain;
| | - Daniel Sánchez-Rodas
- Center for Research in Sustainable Chemistry, CIQSO, University of Huelva, 21071 Huelva, Spain;
| | - Nelson M. Varela
- Latin American Network for Implementation and Validation of Clinical Pharmacogenomics Guidelines (RELIVAF-CYTED), 28015 Madrid, Spain;
- Laboratory of Chemical Carcinogenesis and Pharmacogenetics (CQF), Department of Basic-Clinical Oncology (DOBC), Faculty of Medicine, University of Chile, Santiago 8320000, Chile;
| | - Christopher A. Sandoval
- Laboratory of Chemical Carcinogenesis and Pharmacogenetics (CQF), Department of Basic-Clinical Oncology (DOBC), Faculty of Medicine, University of Chile, Santiago 8320000, Chile;
| | - Luis A. Quiñones
- Latin American Network for Implementation and Validation of Clinical Pharmacogenomics Guidelines (RELIVAF-CYTED), 28015 Madrid, Spain;
- Laboratory of Chemical Carcinogenesis and Pharmacogenetics (CQF), Department of Basic-Clinical Oncology (DOBC), Faculty of Medicine, University of Chile, Santiago 8320000, Chile;
- Correspondence: (L.A.Q.); (B.J.-R.); Tel.: +56-2-297-707-4144 (L.A.Q.); +57-301-363-5979 (B.J.-R.)
| | - Boris Johnson-Restrepo
- Environmental Chemistry Research Group and Public Health Research Group, University of Cartagena, Cartagena 130015, Colombia;
- Correspondence: (L.A.Q.); (B.J.-R.); Tel.: +56-2-297-707-4144 (L.A.Q.); +57-301-363-5979 (B.J.-R.)
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25
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Hyperaccumulation of arsenic by Pteris vittata, a potential strategy for phytoremediation of arsenic-contaminated soil. ACTA ACUST UNITED AC 2020. [DOI: 10.1007/s42398-020-00106-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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26
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Sobh A, Loguinov A, Yazici GN, Zeidan RS, Tagmount A, Hejazi NS, Hubbard AE, Zhang L, Vulpe CD. Functional Profiling Identifies Determinants of Arsenic Trioxide Cellular Toxicity. Toxicol Sci 2020; 169:108-121. [PMID: 30815697 DOI: 10.1093/toxsci/kfz024] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Arsenic exposure is a worldwide health concern associated with an increased risk of skin, lung, and bladder cancer but arsenic trioxide (AsIII) is also an effective chemotherapeutic agent. The current use of AsIII in chemotherapy is limited to acute promyelocytic leukemia (APL). However, AsIII was suggested as a potential therapy for other cancer types including chronic myeloid leukemia (CML), especially when combined with other drugs. Here, we carried out a genome-wide CRISPR-based approach to identify modulators of AsIII toxicity in K562, a human CML cell line. We found that disruption of KEAP1, the inhibitory partner of the key antioxidant transcription factor Nrf2, or TXNDC17, a thioredoxin-like protein, markedly increased AsIII tolerance. Loss of the water channel AQP3, the zinc transporter ZNT1 and its regulator MTF1 also enhanced tolerance to AsIII whereas loss of the multidrug resistance protein ABCC1 increased sensitivity to AsIII. Remarkably, disruption of any of multiple genes, EEFSEC, SECISBP2, SEPHS2, SEPSECS, and PSTK, encoding proteins involved in selenocysteine metabolism increased resistance to AsIII. Our data suggest a model in which an intracellular interaction between selenium and AsIII may impact intracellular AsIII levels and toxicity. Together this work revealed a suite of cellular components/processes which modulate the toxicity of AsIII in CML cells. Targeting such processes simultaneously with AsIII treatment could potentiate AsIII in CML therapy.
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Affiliation(s)
- Amin Sobh
- Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, Florida.,Department of Nutritional Sciences & Toxicology, Comparative Biochemistry Program, University of California, Berkeley, Berkeley, California
| | - Alex Loguinov
- Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, Florida
| | - Gulce Naz Yazici
- Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, Florida.,Department of Histology and Embryology, Faculty of Medicine, Erzincan Binali Yildirim University, Erzincan, Turkey
| | - Rola S Zeidan
- Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, Florida
| | - Abderrahmane Tagmount
- Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, Florida
| | - Nima S Hejazi
- Division of Biostatistics and Epidemiology, School of Public Health, University of California, Berkeley, Berkeley, California.,Center for Computational Biology, University of California, Berkeley, Berkeley, California
| | - Alan E Hubbard
- Division of Biostatistics and Epidemiology, School of Public Health, University of California, Berkeley, Berkeley, California
| | - Luoping Zhang
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, Berkeley, California
| | - Chris D Vulpe
- Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, Florida.,Department of Nutritional Sciences & Toxicology, Comparative Biochemistry Program, University of California, Berkeley, Berkeley, California
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27
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Neuroprotective effects of gallic acid against neurotoxicity induced by sodium arsenite in rats. ACTA ACUST UNITED AC 2020. [DOI: 10.1007/s00580-020-03097-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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28
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Caldas-Lopes E, Gomez-Arteaga A, Guzman ML. Approaches to Targeting Cancer Stem Cells in Solid Tumors. Curr Stem Cell Res Ther 2019; 14:421-427. [PMID: 30806324 DOI: 10.2174/1574888x14666190222164429] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 11/08/2018] [Accepted: 01/20/2019] [Indexed: 12/11/2022]
Abstract
CSCs are a population of self-renewing and tumor repopulating cells that have been observed in hematologic and solid tumors and their presence contributes to the development of drug resistance. The failure to eliminate CSCs with conventional therapy is one of major obstacles in the successful treatment of cancer. Several mechanisms have been described to contribute to CSCs chemoresistance properties that include the adoption of drug-efflux pumps, drug detoxification pathways, changes in metabolism, improved DNA repair mechanisms, and deregulated survival and pro-apoptotic pathways. Thus, CSCs are therefore an attractive target to develop new anti-cancer therapies.
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Affiliation(s)
- Eloisi Caldas-Lopes
- Division of Hematology Oncology, Department of Medicine, Weill Cornell Medicine, New York, NY, United States
| | - Alexandra Gomez-Arteaga
- Division of Hematology Oncology, Department of Medicine, Weill Cornell Medicine, New York, NY, United States
| | - Monica L Guzman
- Division of Hematology Oncology, Department of Medicine, Weill Cornell Medicine, New York, NY, United States.,Department of Pharmacology, Weill Cornell Medicine, New York, NY, United States
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29
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Garza-Lombó C, Pappa A, Panayiotidis MI, Gonsebatt ME, Franco R. Arsenic-induced neurotoxicity: a mechanistic appraisal. J Biol Inorg Chem 2019; 24:1305-1316. [PMID: 31748979 DOI: 10.1007/s00775-019-01740-8] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Accepted: 10/24/2019] [Indexed: 12/19/2022]
Abstract
Arsenic is a metalloid found in groundwater as a byproduct of soil/rock erosion and industrial and agricultural processes. This xenobiotic elicits its toxicity through different mechanisms, and it has been identified as a toxicant that affects virtually every organ or tissue in the body. In the central nervous system, exposure to arsenic can induce cognitive dysfunction. Furthermore, iAs has been linked to several neurological disorders, including neurodevelopmental alterations, and is considered a risk factor for neurodegenerative disorders. However, the exact mechanisms involved are still unclear. In this review, we aim to appraise the neurotoxic effects of arsenic and the molecular mechanisms involved. First, we discuss the epidemiological studies reporting on the effects of arsenic in intellectual and cognitive function during development as well as studies showing the correlation between arsenic exposure and altered cognition and mental health in adults. The neurotoxic effects of arsenic and the potential mechanisms associated with neurodegeneration are also reviewed including data from experimental models supporting epidemiological evidence of arsenic as a neurotoxicant. Next, we focused on recent literature regarding arsenic metabolism and the molecular mechanisms that begin to explain how arsenic damages the central nervous system including, oxidative stress, energy failure and mitochondrial dysfunction, epigenetics, alterations in neurotransmitter homeostasis and synaptic transmission, cell death pathways, and inflammation. Outlining the specific mechanisms by which arsenic alters the cell function is key to understand the neurotoxic effects that convey cognitive dysfunction, neurodevelopmental alterations, and neurodegenerative disorders.
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Affiliation(s)
- Carla Garza-Lombó
- Redox Biology Center, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA.,School of Veterinary Medicine and Biomedical Sciences, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA.,Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, 04510, Mexico City, Mexico
| | - Aglaia Pappa
- Department of Molecular Biology and Genetics, Democritus University of Thrace, Alexandroupolis, Greece
| | | | - María E Gonsebatt
- Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, 04510, Mexico City, Mexico
| | - Rodrigo Franco
- Redox Biology Center, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA. .,School of Veterinary Medicine and Biomedical Sciences, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA.
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30
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Painefilú JC, Pascual MM, Bieczynski F, Laspoumaderes C, González C, Villanueva SSM, Luquet CM. Ex vivo and in vivo effects of arsenite on GST and ABCC2 activity and expression in the middle intestine of the rainbow trout Oncorhynchus mykiss. Comp Biochem Physiol C Toxicol Pharmacol 2019; 225:108566. [PMID: 31301398 DOI: 10.1016/j.cbpc.2019.108566] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 06/07/2019] [Accepted: 07/01/2019] [Indexed: 12/24/2022]
Abstract
In fish of freshwaters environments, the accumulation and toxic effects of arsenite (AsIII) can be attenuated by detoxification proteins such as GST and ABCC transporters. We studied the effects of AsIII on the middle intestine of O. mykiss in ex-vivo and in vivo/ex vivo assays. For the ex vivo assays, we measured the transport rate of the ABCC substrate DNP-SG and GST activity in intestinal strips and everted sacs. AsIII inhibited DNP-SG transport in a concentration-dependent manner, specifically when we applied it on the basolateral side. GST activity increased when we applied a maximum concentration of AsIII. For the in vivo/ex vivo assays, we kept fish in water with or without 7.7 μmol L-1 of AsIII for 48 h. Then, we measured DNP-SG transport rate, GST activity, and PP1 activity in intestine strips during one hour. For PP1 activity, we incubated the strips with or without microcystin-LR (MCLR), a toxin excreted through ABCC2 proteins. We also analyzed Abcc2 and Gst-π mRNA expression in intestine and liver tissue. In the group exposed in vivo to AsIII, DNP-SG transport rate and GST activity were higher and the effect of MCLR over PP1 activity was attenuated. AsIII significantly induced only Abcc2 mRNA expression in both middle intestine and liver. Our results suggest that, in the middle intestine of O. mykiss, AsIII is absorbed mainly at the basolateral side of the enterocytes, excreted to the lumen by ABCC2 transporters, and is capable of modulating Abcc2 mRNA expression by a transcriptional mechanism.
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Affiliation(s)
- Julio C Painefilú
- Laboratorio de Ecotoxicología Acuática, INIBIOMA (CONICET-UNCo) - CEAN, ruta provincial no. 61, km 3, CCP 7, Junín de los Andes, 8371 Neuquén, Argentina
| | - Mariano M Pascual
- Laboratorio de Ecotoxicología Acuática, INIBIOMA (CONICET-UNCo) - CEAN, ruta provincial no. 61, km 3, CCP 7, Junín de los Andes, 8371 Neuquén, Argentina
| | - Flavia Bieczynski
- Instituto de Biotecnologia Agropecuaria del Comahue, Sub-Sede Ibac, CITAAC (CONICET-UNCo) Universidad Nacional del Comahue, Buenos Aires 1400. Neuquén 8300, Argentina
| | - Cecilia Laspoumaderes
- Laboratorio de Limnología, INIBIOMA, CONICET-Universidad Nacional del Comahue, Quintral 1250, 8400, San Carlos de Bariloche, Rìo Negro, Argentina; Shelf Sea System Ecology, Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung (AWI), Biologische Anstalt Helgoland, Helgoland, Germany
| | - Carolina González
- C I Agua y Saneamientos Argentinos, Tucumán 752, 1049 Buenos Aires, Argentina; Laboratorio de Limnología, Facultad de Ciencias Exactas y Naturales, UBA, Argentina
| | - Silvina S M Villanueva
- Instituto de Fisiología Experimental, IFISE-CONICET, Facultad de Ciencias Bioquimicas y Farmaceúticas, Universidad Nacional de Rosario, Suipacha 570, 2000, Rosario, Santa Fe, Argentina
| | - Carlos M Luquet
- Laboratorio de Ecotoxicología Acuática, INIBIOMA (CONICET-UNCo) - CEAN, ruta provincial no. 61, km 3, CCP 7, Junín de los Andes, 8371 Neuquén, Argentina.
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31
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Effects of Proanthocyanidins on Arsenic Methylation Metabolism and Efflux in Human Hepatocytes L-02. BIOMED RESEARCH INTERNATIONAL 2019; 2019:3924581. [PMID: 31355259 PMCID: PMC6637718 DOI: 10.1155/2019/3924581] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 06/02/2019] [Accepted: 06/13/2019] [Indexed: 11/30/2022]
Abstract
This study investigated the effects of proanthocyanidins (PC) on arsenic methylation metabolism and efflux in human hepatocytes (L-02), as well as the relationships between PC and GSH, MRP1 and other molecules. Cells were randomly divided into blank control group, arsenic trioxide exposure group (ATO, As2O3, 25μmol/L), and PC-treated arsenic exposure group (10, 25, 50mg/L). After 24/48h, the contents of different forms of arsenic were determined, and the methylation indexes were calculated. Intracellular S-adenosyl methionine (SAM), arsenic (+3 oxidation state) methyltransferase (AS3MT), multidrug resistance-associated protein 1 (MRP1), and reduced glutathione (GSH) were ascertained. Changing trends were observed and the correlation between arsenic metabolism and efflux related factors and arsenic metabolites was analyzed. We observed that cells showed increased levels of content/constituent ratio of methyl arsenic, primary/secondary methylation index, methylation growth efficiency/rate, and the difference of methyl arsenic content in cells and culture medium (P<0.05, resp.). Compared with ATO exposure group, the intracellular SAM content in PC-treated group decreased, and the contents of GSH, AS3MT, and MRP1 increased (P<0.05, resp.). There was a positive correlation between the content of intracellular GSH/AS3MT and methyl arsenic. The content of MRP1 was positively correlated with the difference of methyl arsenic content in cell and culture medium; conversely, the SAM content was negatively correlated with intracellular methyl arsenic content (P<0.05, resp.). Taken together, these results prove that PC can promote arsenic methylation metabolism and efflux in L-02 cells, which may be related to the upregulation of GSH, MRP1, and AS3MT levels by PC.
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32
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Gana CC, Hanssen KM, Yu DMT, Flemming CL, Wheatley MS, Conseil G, Cole SPC, Norris MD, Haber M, Fletcher JI. MRP1 modulators synergize with buthionine sulfoximine to exploit collateral sensitivity and selectively kill MRP1-expressing cancer cells. Biochem Pharmacol 2019; 168:237-248. [PMID: 31302132 DOI: 10.1016/j.bcp.2019.07.009] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 07/09/2019] [Indexed: 11/25/2022]
Abstract
Members of the ABC transporter family, particularly P-glycoprotein (P-gp, ABCB1), breast cancer resistance protein (BCRP, ABCG2) and multidrug resistance protein 1 (MRP1, ABCC1) are well characterized mediators of multidrug resistance, however their pharmacological inhibition has so far failed as a clinical strategy. Harnessing collateral sensitivity, a form of synthetic lethality where cells with acquired multidrug resistance exhibit hypersensitivity to unrelated agents, may be an alternative approach to targeting multidrug resistant tumour cells. We characterized a novel small molecule modulator that selectively enhanced MRP1-dependent efflux of reduced glutathione (GSH), an endogenous MRP1 substrate. Using cell lines expressing high levels of endogenous MRP1 from three difficult to treat cancer types-lung cancer, ovarian cancer and high-risk neuroblastoma-we showed that the MRP1 modulator substantially lowered intracellular GSH levels as a single agent. The effect was on-target, as MRP1 knockdown abolished GSH depletion. The MRP1 modulator was synergistic with the GSH synthesis inhibitor buthionine sulfoximine (BSO), with the combination exhausting intracellular GSH, increasing intracellular reactive oxygen species (ROS) and abolishing clonogenic capacity. Clonogenicity was rescued by the ROS scavenger N-acetylcysteine, implicating GSH depletion in the effect. The MRP1 modulator in combination with BSO also strongly sensitized cancer cells to MRP1-substrate chemotherapeutic agents, particularly arsenic trioxide, and was more effective than either the MRP1 modulator or BSO alone. GSH-depleting MRP1 modulators may therefore provide an enhanced therapeutic window to treat chemo-resistant MRP1-overexpressing pediatric and adult cancers.
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Affiliation(s)
- Christine C Gana
- Children's Cancer Institute Australia, Lowy Cancer Research Centre, UNSW Sydney, Kensington, NSW 2052, Australia; School of Women's and Children's Health, UNSW Sydney, Kensington, NSW 2052, Australia
| | - Kimberley M Hanssen
- Children's Cancer Institute Australia, Lowy Cancer Research Centre, UNSW Sydney, Kensington, NSW 2052, Australia; School of Women's and Children's Health, UNSW Sydney, Kensington, NSW 2052, Australia
| | - Denise M T Yu
- Children's Cancer Institute Australia, Lowy Cancer Research Centre, UNSW Sydney, Kensington, NSW 2052, Australia; School of Women's and Children's Health, UNSW Sydney, Kensington, NSW 2052, Australia
| | - Claudia L Flemming
- Children's Cancer Institute Australia, Lowy Cancer Research Centre, UNSW Sydney, Kensington, NSW 2052, Australia
| | - Madeleine S Wheatley
- Children's Cancer Institute Australia, Lowy Cancer Research Centre, UNSW Sydney, Kensington, NSW 2052, Australia
| | - Gwenaëlle Conseil
- Division of Cancer Biology & Genetics, Queen's University Cancer Research Institute, Kingston, ON, Canada
| | - Susan P C Cole
- Division of Cancer Biology & Genetics, Queen's University Cancer Research Institute, Kingston, ON, Canada
| | - Murray D Norris
- Children's Cancer Institute Australia, Lowy Cancer Research Centre, UNSW Sydney, Kensington, NSW 2052, Australia; University of New South Wales Centre for Childhood Cancer Research, UNSW Sydney, Kensington, NSW 2052, Australia
| | - Michelle Haber
- Children's Cancer Institute Australia, Lowy Cancer Research Centre, UNSW Sydney, Kensington, NSW 2052, Australia
| | - Jamie I Fletcher
- Children's Cancer Institute Australia, Lowy Cancer Research Centre, UNSW Sydney, Kensington, NSW 2052, Australia; School of Women's and Children's Health, UNSW Sydney, Kensington, NSW 2052, Australia.
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33
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Yan H, Gao Y, Wu L, Wang L, Zhang T, Dai C, Xu W, Feng L, Ma M, Zhu YG, He Z. Potential use of the Pteris vittata arsenic hyperaccumulation-regulation network for phytoremediation. JOURNAL OF HAZARDOUS MATERIALS 2019; 368:386-396. [PMID: 30690391 DOI: 10.1016/j.jhazmat.2019.01.072] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 01/02/2019] [Accepted: 01/18/2019] [Indexed: 05/18/2023]
Abstract
Arsenic accumulation in soil is a global problem typically addressed using phytoremediation methods. Pteris vittata, a model arsenic hyperaccumulator, has great potential as a genetically engineered plant for phytoremediation. However, the lack of omic information on this species has severely limited the identification and application of its arsenic hyperaccumulation and regulation components. In this study, we used an optimized single-molecular real-time (SMRT) strategy to create a de novo full-length transcriptomic-tonoplast proteomic database for this unsequenced fern and to determine the genetic components underlying its arsenic hyperaccumulation-regulation mechanisms. We established a comprehensive network consisting of six major transporter families, two novel resistance pathways, and a regulatory system by examining alternative splicing (AS) and long non-coding RNA (lncRNA) in different tissues following As(III) and As(V) treatment. The database and network established in this study will deepen our understanding of the unique hyperaccumulation and regulation mechanisms of P. vittata, ultimately providing a valuable resource for futher research on phytoremediation of arsenic-contaminated soil.
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Affiliation(s)
- Huili Yan
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
| | - Yiwei Gao
- College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083, China
| | - Lulu Wu
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Luyao Wang
- College of Life Sciences, Hebei Normal University, Shijiazhuang, 050016, China
| | - Tian Zhang
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Changhua Dai
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wenxiu Xu
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
| | - Lu Feng
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
| | - Mi Ma
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
| | - Yong-Guan Zhu
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China.
| | - Zhenyan He
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China.
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Wiese M, Stefan SM. The A‐B‐C of small‐molecule ABC transport protein modulators: From inhibition to activation—a case study of multidrug resistance‐associated protein 1 (ABCC1). Med Res Rev 2019; 39:2031-2081. [DOI: 10.1002/med.21573] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 02/26/2019] [Accepted: 03/05/2019] [Indexed: 12/17/2022]
Affiliation(s)
- Michael Wiese
- Pharmaceutical Institute, Rheinische Friedrich‐Wilhelms‐University of Bonn Bonn Germany
| | - Sven Marcel Stefan
- Pharmaceutical Institute, Rheinische Friedrich‐Wilhelms‐University of Bonn Bonn Germany
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Gholamine B, Houshmand G, Hosseinzadeh A, Kalantar M, Mehrzadi S, Goudarzi M. Gallic acid ameliorates sodium arsenite-induced renal and hepatic toxicity in rats. Drug Chem Toxicol 2019; 44:341-352. [PMID: 30907158 DOI: 10.1080/01480545.2019.1591434] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Chronic exposure to toxic inorganic arsenic results in the adverse health effects including skin lesions, cardiovascular diseases, diabetes, neurological disorders, and liver and kidney diseases. Gallic acid (GA) is an important phenolic compound, which could protect different tissues from oxidative stress induced damage. The present study investigated effects of GA against sodium arsenite (SA)-induced renal and hepatic toxicity. Thirty-five rats were randomly divided in to five groups; group 1 was treated with normal saline (2 ml/kg/day, p.o.; for 21 days); group 2 was exposed to SA (10 mg/kg/day, p.o.; for 14 days); groups 3 and 4 were treated with GA (10 and 30 mg/kg/day, respectively; for 7 days) prior to exposure to SA, and treatment was continued up to 21 days in parallel with SA administration; group 5 was treated with GA (30 mg/kg/day, p.o.; for 21 days). The level of MDA, IL-1β, NO and glutathione (GSH) and the activity of glutathione peroxidase (GPx), superoxide dismutase (SOD) and catalase (CAT) were evaluated in kidney and liver tissues. Histopathological parameters and serum levels of ALT, AST, ALP, Cr and BUN were also assessed. Treatment with GA remarkably improved SA-induced alteration of hematological and histopathological parameters; these protective effects were associated with the reduction of SA-induced elevation of MDA, IL-1β and NO levels as well as reduction of GSH level and GPx, SOD and CAT activity. Our results suggest that GA may inhibit SA-induced kidney and liver toxicity through scavenging reactive free radicals and increasing intracellular antioxidant capacity.
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Affiliation(s)
- Babak Gholamine
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Gholamreza Houshmand
- Department of Pharmacology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Azam Hosseinzadeh
- Razi Drug Research Center, Iran University of Medical Sciences, Tehran, Iran
| | | | - Saeed Mehrzadi
- Razi Drug Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Mehdi Goudarzi
- Medicinal Plant Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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36
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Redox metabolism of ingested arsenic: Integrated activities of microbiome and host on toxicological outcomes. CURRENT OPINION IN TOXICOLOGY 2019. [DOI: 10.1016/j.cotox.2018.09.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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37
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Xu H, Wang X, Burchiel SW. Toxicity of environmentally-relevant concentrations of arsenic on developing T lymphocyte. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2018; 62:107-113. [PMID: 29986278 DOI: 10.1016/j.etap.2018.07.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 07/02/2018] [Indexed: 05/14/2023]
Abstract
Arsenic is a ubiquitous environmental contaminant that exists in many inorganic and organic forms. In particular, arsenite is known to induce immunotoxicity in humans and animals. There are still major gaps in our understanding of the mechanism(s) of the immunotoxicity induced by arsenic at environmentally-relevant concentrations. T cells are an essential part of the immune system required for host resistance to infections and protection from cancer. Developing T cells in the thymus have been shown to be particularly prone to arsenite-induced toxicity at low concentrations. Suppression of DNA repair proteins and oxidative stress have been identified as a mechanism of genotoxicity that occurs at low to moderate concentrations. Inhibition of the IL-7 signaling pathway was thought to be responsible for the non-genotoxicity induced by low to moderate doses of arsenic. Interestingly, T cells at different stages of their development had distinct sensitivities to arsenite, which was regulated by arsenite exporters. The current evidence strongly suggests that low to moderate doses of arsenic induces toxic effects in the developing T cells and accumulates to highest levels in the early cells that are least capable to pump out arsenic, which may be the mechanism of the high arsenic sensitivity. Therefore, quantification of the exposure levels should be encouraged in future arsenic toxicity studies.
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Affiliation(s)
- Huan Xu
- East China University of Science and Technology, School of Pharmacy, Department of Pharmaceutical Sciences, Shanghai, 200237, China.
| | - Xiaolei Wang
- East China University of Science and Technology, School of Pharmacy, Department of Pharmaceutical Sciences, Shanghai, 200237, China
| | - Scott W Burchiel
- The University of New Mexico College of Pharmacy, Department of Pharmaceutical Sciences, Albuquerque, NM, 87131, USA.
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Kim S, Sharma AK, Vatamaniuk OK. N-Terminal Extension and C-Terminal Domains Are Required for ABCB6/HMT-1 Protein Interactions, Function in Cadmium Detoxification, and Localization to the Endosomal-Recycling System in Caenorhabditis elegans. Front Physiol 2018; 9:885. [PMID: 30104978 PMCID: PMC6077975 DOI: 10.3389/fphys.2018.00885] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 06/19/2018] [Indexed: 01/30/2023] Open
Abstract
The chronic exposure of humans to toxic metals such as cadmium from food and air causes dysfunction of vital organs, neurodegenerative conditions, and cancer. In this regard, members of the ABCB sub-family of the ATP-binding cassette (ABC) transporter superfamily, ABCB6/HMT-1, are acutely required for the detoxification of heavy metals and are present in genomes of many organisms including the nematode worm, Caenorhabditis elegans and humans. We showed previously that C. elegans ABCB6/HMT-1 detoxifies cadmium, copper, and arsenic, and is expressed in liver-like cells, the coelomocytes, head neurons and intestinal cells, which are the cell types that are affected by heavy metal poisoning in humans. The subcellular localization of ABCB6/HMT-1 proteins is unclear. ABCB6/HMT-1 proteins have a distinguishing topology: in addition to one transmembrane domain and one nucleotide-binding domain, they possess a hydrophobic N-terminal extension (NTE) domain encompassing five to six transmembrane spans. The role of the NTE domain in the function of ABCB6/HMT-1 in the native organism remains to be investigated. We used a versatile, multicellular model system, C. elegans, to establish the subcellular localization of ABCB6/HMT-1 and refine its structure-function studies in the native organism. We show that ABCB6/HMT-1 localizes mainly to the apical recycling endosomes and, in part, to early and late endosomes of intestinal cells. We also show that ABCB6/HMT-1 lacking the NTE domain is mistargeted to the plasma membrane and is unable to confer cadmium resistance. Although the NTE domain is essential for ABCB6/HMT-1 interaction with itself, the absence of NTE does not fully prevent this interaction. As a result, ABCB6/HMT-1 lacking the NTE domain, and expressed in wild-type worms or co-expressed with the full-length polypeptide, inactivates and mistargets the full-length ABCB6/HMT-1. We also show that the 43 amino acid residue stretch at the COOH-terminus is required for the ABCB6/HMT-1 interaction with itself and cadmium detoxification function. These results suggest that both NTE and COOH-terminus must be present to allow the protein to interact with itself and confer cadmium resistance. Considering that ABCB6/HMT-1 proteins are highly conserved, this study advances our understanding of how these proteins function in cadmium resistance in different species. Furthermore, these studies uncover the role of the endosomal-recycling system in cadmium detoxification.
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Affiliation(s)
- Sungjin Kim
- Section of Soil and Crop Sciences, School of Integrative Plant Science, Cornell University, Ithaca, NY, United States
| | - Anuj K. Sharma
- Section of Soil and Crop Sciences, School of Integrative Plant Science, Cornell University, Ithaca, NY, United States
| | - Olena K. Vatamaniuk
- Section of Soil and Crop Sciences, School of Integrative Plant Science, Cornell University, Ithaca, NY, United States
- Section of Plant Biology, School of Integrative Plant Science, Cornell University, Ithaca, NY, United States
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Zhou T, Niu W, Yuan Z, Guo S, Song Y, Di C, Xu X, Tan X, Yang L. ABCA1 Is Coordinated with ABCB1 in the Arsenic-Resistance of Human Cells. Appl Biochem Biotechnol 2018; 187:365-377. [PMID: 29951962 DOI: 10.1007/s12010-018-2800-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 05/30/2018] [Indexed: 11/30/2022]
Abstract
Arsenic is one of the most widespread global environmental toxicants associated with endemic poisoning. ATP-binding cassette (ABC) proteins are transmembrane channels that transport and dispose of lipids and metabolic products across the plasma membrane. The majority of ABC family members (including ABCB1 and ABCC1) are reported to play a role in the development of arsenic and drug resistance in mammals. Previously, we established a human arsenic-resistant ECV-304 (AsRE) cell line and identified ABCA1 as a novel arsenic resistance gene. In the current study, we further investigated the potential contribution of ABCA1, ABCB1, and ABCC1 to arsenic resistance through measurement of survival rates and arsenic accumulation in AsRE cells with RNA interference. The arsenic resistance capacity of ABCC1 was the strongest among the three genes, while those of ABCA1 and ABCB1 were similar. Double or triple gene knockdown of ABCA1, ABCB1, and ABCC1 via RNA interference led to a decrease significant in arsenic resistance when ABCA1/ABCB1 or ABCB1/ABCC1 were simultaneously silenced. Interestingly, no differences were evident between cells with ABCA1/ABCC1 and ABCC1 only knockdown. Our findings suggest that ABCA1 and ABCB1 proteins display similar arsenic resistance capabilities and possibly coordinate to promote arsenic resistance in AsRE cells.
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Affiliation(s)
- Tong Zhou
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang, People's Republic of China
| | - Wanqiang Niu
- School of Medicine, Hangzhou Normal University, Hangzhou, Zhejiang, People's Republic of China
| | - Zhen Yuan
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang, People's Republic of China
| | - Shuli Guo
- Ministry of Education Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi University, Xinjiang, People's Republic of China
| | - Yang Song
- School of Medicine, Hangzhou Normal University, Hangzhou, Zhejiang, People's Republic of China
| | - Chunhong Di
- Affiliated Hospital, Hangzhou Normal University, Hangzhou, Zhejiang, People's Republic of China
| | - Xiaoling Xu
- School of Medicine, Hangzhou Normal University, Hangzhou, Zhejiang, People's Republic of China.
| | - Xiaohua Tan
- School of Medicine, Hangzhou Normal University, Hangzhou, Zhejiang, People's Republic of China.
| | - Lei Yang
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang, People's Republic of China. .,School of Medicine, Hangzhou Normal University, Hangzhou, Zhejiang, People's Republic of China. .,Ministry of Education Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi University, Xinjiang, People's Republic of China.
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40
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Garza-Lombó C, Posadas Y, Quintanar L, Gonsebatt ME, Franco R. Neurotoxicity Linked to Dysfunctional Metal Ion Homeostasis and Xenobiotic Metal Exposure: Redox Signaling and Oxidative Stress. Antioxid Redox Signal 2018; 28:1669-1703. [PMID: 29402131 PMCID: PMC5962337 DOI: 10.1089/ars.2017.7272] [Citation(s) in RCA: 127] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
SIGNIFICANCE Essential metals such as copper, iron, manganese, and zinc play a role as cofactors in the activity of a wide range of processes involved in cellular homeostasis and survival, as well as during organ and tissue development. Throughout our life span, humans are also exposed to xenobiotic metals from natural and anthropogenic sources, including aluminum, arsenic, cadmium, lead, and mercury. It is well recognized that alterations in the homeostasis of essential metals and an increased environmental/occupational exposure to xenobiotic metals are linked to several neurological disorders, including neurodegeneration and neurodevelopmental alterations. Recent Advances: The redox activity of essential metals is key for neuronal homeostasis and brain function. Alterations in redox homeostasis and signaling are central to the pathological consequences of dysfunctional metal ion homeostasis and increased exposure to xenobiotic metals. Both redox-active and redox-inactive metals trigger oxidative stress and damage in the central nervous system, and the exact mechanisms involved are starting to become delineated. CRITICAL ISSUES In this review, we aim to appraise the role of essential metals in determining the redox balance in the brain and the mechanisms by which alterations in the homeostasis of essential metals and exposure to xenobiotic metals disturb the cellular redox balance and signaling. We focus on recent literature regarding their transport, metabolism, and mechanisms of toxicity in neural systems. FUTURE DIRECTIONS Delineating the specific mechanisms by which metals alter redox homeostasis is key to understand the pathological processes that convey chronic neuronal dysfunction in neurodegenerative and neurodevelopmental disorders. Antioxid. Redox Signal. 28, 1669-1703.
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Affiliation(s)
- Carla Garza-Lombó
- 1 Redox Biology Center and School of Veterinary Medicine and Biomedical Sciences, University of Nebraska-Lincoln , Lincoln, Nebraska.,2 Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas , Universidad Nacional Autónoma de México, Mexico City, México
| | - Yanahi Posadas
- 3 Departamentos de Farmacología y de, Centro de Investigación y de Estudios Avanzados (CINVESTAV) , Mexico City, México .,4 Departamentos de Química, Centro de Investigación y de Estudios Avanzados (CINVESTAV) , Mexico City, México
| | - Liliana Quintanar
- 4 Departamentos de Química, Centro de Investigación y de Estudios Avanzados (CINVESTAV) , Mexico City, México
| | - María E Gonsebatt
- 2 Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas , Universidad Nacional Autónoma de México, Mexico City, México
| | - Rodrigo Franco
- 1 Redox Biology Center and School of Veterinary Medicine and Biomedical Sciences, University of Nebraska-Lincoln , Lincoln, Nebraska
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41
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Alex AA, Ganesan S, Palani HK, Balasundaram N, David S, Lakshmi KM, Kulkarni UP, Nisham PN, Korula A, Devasia AJ, Janet NB, Abraham A, Srivastava A, George B, Padua RA, Chomienne C, Balasubramanian P, Mathews V. Arsenic Trioxide Enhances the NK Cell Cytotoxicity Against Acute Promyelocytic Leukemia While Simultaneously Inhibiting Its Bio-Genesis. Front Immunol 2018; 9:1357. [PMID: 29963052 PMCID: PMC6010577 DOI: 10.3389/fimmu.2018.01357] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Accepted: 05/31/2018] [Indexed: 11/17/2022] Open
Abstract
Natural killer cells (NK) contribute significantly to eradication of cancer cells, and there is increased interest in strategies to enhance it’s efficacy. Therapeutic agents used in the treatment of cancer can impact the immune system in a quantitative and qualitative manner. In this study, we evaluated the impact of arsenic trioxide (ATO) used in the management of acute promyelocytic leukemia (APL) on NK cell reconstitution and function. In patients with APL treated with single agent ATO, there was a significant delay in the reconstitution of circulating NK cells to reach median normal levels from the time of diagnosis (655 days for NK cells vs 145 and 265 days for T cells and B cells, respectively). In vitro experiments demonstrated that ATO significantly reduced the CD34 hematopoietic stem cell (HSC) differentiation to NK cells. Additional experimental data demonstrate that CD34+ sorted cells when exposed to ATO lead to a significant decrease in the expression of IKZF2, ETS1, and TOX transcription factors involved in NK cell differentiation and maturation. In contrast, exposure of NK cells and leukemic cells to low doses of ATO modulates NK cell receptors and malignant cell ligand profile in a direction that enhances NK cell mediated cytolytic activity. We have demonstrated that NK cytolytic activity toward NB4 cell line when exposed to ATO was significantly higher when compared with controls. We also validated this beneficial effect in a mouse model of APL were the median survival with ATO alone and ATO + NK was 44 days (range: 33–46) vs 54 days (range: 52–75). In conclusion, ATO has a differential quantitative and qualitative effect on NK cell activity. This information can potentially be exploited in the management of leukemia.
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Affiliation(s)
- Ansu Abu Alex
- Department of Hematology, Christian Medical College, Vellore, India
| | | | | | | | - Sachin David
- Department of Hematology, Christian Medical College, Vellore, India
| | | | - Uday P Kulkarni
- Department of Hematology, Christian Medical College, Vellore, India
| | - P N Nisham
- Department of Hematology, Christian Medical College, Vellore, India
| | - Anu Korula
- Department of Hematology, Christian Medical College, Vellore, India
| | - Anup J Devasia
- Department of Hematology, Christian Medical College, Vellore, India
| | | | - Aby Abraham
- Department of Hematology, Christian Medical College, Vellore, India
| | - Alok Srivastava
- Department of Hematology, Christian Medical College, Vellore, India
| | - Biju George
- Department of Hematology, Christian Medical College, Vellore, India
| | - Rose Ann Padua
- UMR-S1131, Hôpital Saint Louis, Paris, France.,Institut Universitaire d'Hématologie, Universite Paris Diderot, Paris, France
| | - Christine Chomienne
- UMR-S1131, Hôpital Saint Louis, Paris, France.,Institut Universitaire d'Hématologie, Universite Paris Diderot, Paris, France
| | | | - Vikram Mathews
- Department of Hematology, Christian Medical College, Vellore, India
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42
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Banerjee M, Kaur G, Whitlock BD, Carew MW, Le XC, Leslie EM. Multidrug Resistance Protein 1 (MRP1/ABCC1)-Mediated Cellular Protection and Transport of Methylated Arsenic Metabolites Differs between Human Cell Lines. Drug Metab Dispos 2018; 46:1096-1105. [DOI: 10.1124/dmd.117.079640] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Accepted: 05/09/2018] [Indexed: 12/28/2022] Open
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43
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Carnosic Acid, a Natural Diterpene, Attenuates Arsenic-Induced Hepatotoxicity via Reducing Oxidative Stress, MAPK Activation, and Apoptotic Cell Death Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:1421438. [PMID: 29854073 PMCID: PMC5954942 DOI: 10.1155/2018/1421438] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 12/19/2017] [Accepted: 03/14/2018] [Indexed: 12/04/2022]
Abstract
The present studies have been executed to explore the protective mechanism of carnosic acid (CA) against NaAsO2-induced hepatic injury. CA exhibited a concentration dependent (1–4 μM) increase in cell viability against NaAsO2 (12 μM) in murine hepatocytes. NaAsO2 treatment significantly enhanced the ROS-mediated oxidative stress in the hepatic cells both in in vitro and in vivo systems. Significant activation of MAPK, NF-κB, p53, and intrinsic and extrinsic apoptotic signaling was observed in NaAsO2-exposed hepatic cells. CA could significantly counteract with redox stress and ROS-mediated signaling and thereby attenuated NaAsO2-mediated hepatotoxicity. NaAsO2 (10 mg/kg) treatment caused significant increment in the As bioaccumulation, cytosolic ATP level, DNA fragmentation, and oxidation in the liver of experimental mice (n = 6). The serum biochemical and haematological parameters were significantly altered in the NaAsO2-exposed mice (n = 6). Simultaneous treatment with CA (10 and 20 mg/kg) could significantly reinstate the NaAsO2-mediated toxicological effects in the liver. Molecular docking and dynamics predicted the possible interaction patterns and the stability of interactions between CA and signal proteins. ADME prediction anticipated the drug-likeness characteristics of CA. Hence, there would be an option to employ CA as a new therapeutic agent against As-mediated toxic manifestations in future.
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44
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Yu S, Gong LS, Li NF, Pan YF, Zhang L. Galangin (GG) combined with cisplatin (DDP) to suppress human lung cancer by inhibition of STAT3-regulated NF-κB and Bcl-2/Bax signaling pathways. Biomed Pharmacother 2018; 97:213-224. [DOI: 10.1016/j.biopha.2017.10.059] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 10/08/2017] [Accepted: 10/11/2017] [Indexed: 12/13/2022] Open
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45
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Wang H, Zhu J, Li L, Li Y, Lv H, Xu Y, Sun G, Pi J. Effects of Nrf2 deficiency on arsenic metabolism in mice. Toxicol Appl Pharmacol 2017; 337:111-119. [DOI: 10.1016/j.taap.2017.11.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 10/31/2017] [Accepted: 11/02/2017] [Indexed: 02/06/2023]
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46
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Kim H, Yim B, Kim J, Kim H, Lee YM. Molecular characterization of ABC transporters in marine ciliate, Euplotes crassus: Identification and response to cadmium and benzo[a]pyrene. MARINE POLLUTION BULLETIN 2017; 124:725-735. [PMID: 28139231 DOI: 10.1016/j.marpolbul.2017.01.046] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Revised: 01/12/2017] [Accepted: 01/24/2017] [Indexed: 06/06/2023]
Abstract
ATP-binding cassette (ABC) transporters participate in transporting various substances, including xenobiotics, in or out of cells. However, their genetic information and function in ciliates remain still unclear. In this study, we sequenced and characterized two ABC transporter genes (EcABCB and EcABCC), and investigated the effect of cadmium (Cd) and benzo[a]pyrene (B[a]P) on their function and gene expression, using efflux assay and real-time reverse transcription-polymerase chain reaction (qRT-PCR), respectively, in the marine ciliate, Euplotes crassus. Sequencing analysis and efflux assay showed that EcABCB and EcABCC are typical ABC transporters, possessing conserved function. Exposure to Cd (≥5mg/L) and B[a]P (≥50.5μg/L) enhanced accumulation of a substrate. A significant increase in the expression of EcABCB and EcABC mRNA was observed at lower concentration in response to Cd and B[a]P. Our findings indicate that Cd and B[a]P could inhibit the efflux function of ABC transporters, leading to cellular toxicity in the ciliate.
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Affiliation(s)
- Hokyun Kim
- Department of Life Science, College of Natural Sciences, Sangmyung University, Seoul 03016, South Korea
| | - Bora Yim
- Department of Life Science, College of Natural Sciences, Sangmyung University, Seoul 03016, South Korea
| | - Jisoo Kim
- Department of Life Science, College of Natural Sciences, Sangmyung University, Seoul 03016, South Korea
| | - Haeyeon Kim
- Department of Life Science, College of Natural Sciences, Sangmyung University, Seoul 03016, South Korea
| | - Young-Mi Lee
- Department of Life Science, College of Natural Sciences, Sangmyung University, Seoul 03016, South Korea.
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47
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Naïja A, Kestemont P, Chénais B, Haouas Z, Blust R, Helal AN, Marchand J. Cadmium exposure exerts neurotoxic effects in peacock blennies Salaria pavo. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2017; 143:217-227. [PMID: 28551579 DOI: 10.1016/j.ecoenv.2017.05.041] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 05/16/2017] [Accepted: 05/20/2017] [Indexed: 06/07/2023]
Abstract
Cadmium (Cd) is considered as an important factor involved in several neurological disturbances. The aim of this study was to assess the effects of Cd in the brain of peacock blennies Salaria pavo, a species used as a bioindicator of water pollution. A sublethal contamination of 2mg CdCl2 L-1 was performed over periods of 1, 4, 10 and 15 days. Total Cd accumulation was measured in brains and displayed low concentrations throughout the experiment. Partial-length cDNA of different ATP-binding cassette transporters (abcb1, abcc1, abcc2, abcg2 proteins) and acetylcholinesterase (ache) were characterized. mRNA expressions profiles displayed an up-regulation of abcc2 mRNA after 4 days of Cd exposure only while abcg2 mRNA was down-regulated after 10 days only. For AChE, the mRNA transcription and the activity of the enzyme were followed and highlighted that Cd exerted an inhibitory effect on the nervous information transmission. At the histological level, fish exhibited pathological symptoms in the optic tectum and the cerebellum and results showed that the cerebellum was the most affected organ.
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Affiliation(s)
- Azza Naïja
- Bioressources: Integrative Biology and Valuation (BIOLIVAL), Higher Institute of Biotechnology of Monastir, Avenue Tahar Hadded, BP 74, 5000 Monastir, Tunisia
| | - Patrick Kestemont
- Research Unit in Environmental and Evolutionary Biology (URBE), University of Namur, Rue de Bruxelles 61, B-5000 Namur, Belgium
| | - Benoit Chénais
- EA2160 Mer Molécules Santé, LUNAM, IUML-FR 3473 CNRS, University of Le Mans, Le Mans, France
| | - Zohra Haouas
- Research unit of Genetic, Laboratory of Histology and Cytogenetic, Faculty of Medicine, Avenue Avicenne 5019, Monastir, Tunisia
| | - Ronny Blust
- Systemic Physiological and Ecotoxicological Research (SPHERE), Department of Biology, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerpen, Belgium
| | - Ahmed Noureddine Helal
- Bioressources: Integrative Biology and Valuation (BIOLIVAL), Higher Institute of Biotechnology of Monastir, Avenue Tahar Hadded, BP 74, 5000 Monastir, Tunisia
| | - Justine Marchand
- EA2160 Mer Molécules Santé, LUNAM, IUML-FR 3473 CNRS, University of Le Mans, Le Mans, France.
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48
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Khairul I, Wang QQ, Jiang YH, Wang C, Naranmandura H. Metabolism, toxicity and anticancer activities of arsenic compounds. Oncotarget 2017; 8:23905-23926. [PMID: 28108741 PMCID: PMC5410354 DOI: 10.18632/oncotarget.14733] [Citation(s) in RCA: 169] [Impact Index Per Article: 24.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Accepted: 01/11/2017] [Indexed: 01/17/2023] Open
Abstract
A variety of studies indicated that inorganic arsenic and its methylated metabolites have paradoxical effects, namely, carcinogenic and anticancer effects. Epidemiological studies have shown that long term exposure to arsenic can increase the risk of cancers of lung, skin or bladder in man, which is probably associated with the arsenic metabolism. In fact, the enzymatic conversion of inorganic arsenic by Arsenic (+3 oxidation state) methyltransferase (AS3MT) to mono- and dimethylated arsenic species has long been considered as a major route for detoxification. However, several studies have also indicated that biomethylation of inorganic arsenic, particularly the production of trivalent methylated metabolites, is a process that activates arsenic as a toxin and a carcinogen. On the other hand, arsenic trioxide (As2O3) has recently been recognized as one of the most effective drugs for the treatment of APL. However, elaboration of the cytotoxic mechanisms of arsenic and its methylated metabolites in eradicating cancer is sorely lacking. To provide a deeper understanding of the toxicity and carcinogenicity along with them use of arsenic in chemotherapy, caution is required considering the poor understanding of its various mechanisms of exerting toxicity. Thereby, in this review, we have focused on arsenic metabolic pathway, the roles of the methylated arsenic metabolites in toxicity and in the therapeutic efficacy for the treatments of solid tumors, APL and/or non-APL malignancies.
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Affiliation(s)
- Islam Khairul
- Department of Toxicology, School of Medicine and Public Health, Zhejiang University, Hangzhou, China
| | - Qian Qian Wang
- Department of Toxicology, School of Medicine and Public Health, Zhejiang University, Hangzhou, China
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Yu Han Jiang
- Department of Toxicology, School of Medicine and Public Health, Zhejiang University, Hangzhou, China
- Ocean College, Zhejiang University, Hangzhou, China
| | - Chao Wang
- Department of Toxicology, School of Medicine and Public Health, Zhejiang University, Hangzhou, China
| | - Hua Naranmandura
- Department of Toxicology, School of Medicine and Public Health, Zhejiang University, Hangzhou, China
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
- Ocean College, Zhejiang University, Hangzhou, China
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Strain differences in arsenic-induced oxidative lesion via arsenic biomethylation between C57BL/6J and 129X1/SvJ mice. Sci Rep 2017; 7:44424. [PMID: 28303940 PMCID: PMC5355880 DOI: 10.1038/srep44424] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 02/07/2017] [Indexed: 12/11/2022] Open
Abstract
Arsenic is a common environmental and occupational toxicant with dramatic species differences in its susceptibility and metabolism. Mouse strain variability may provide a better understanding of the arsenic pathological profile but is largely unknown. Here we investigated oxidative lesion induced by acute arsenic exposure in the two frequently used mouse strains C57BL/6J and 129X1/SvJ in classical gene targeting technique. A dose of 5 mg/kg body weight arsenic led to a significant alteration of blood glutathione towards oxidized redox potential and increased hepatic malondialdehyde content in C57BL/6J mice, but not in 129X1/SvJ mice. Hepatic antioxidant enzymes were induced by arsenic in transcription in both strains and many were higher in C57BL/6J than 129X1/SvJ mice. Arsenic profiles in the liver, blood and urine and transcription of genes encoding enzymes involved in arsenic biomethylation all indicate a higher arsenic methylation capacity, which contributes to a faster hepatic arsenic excretion, in 129X1/SvJ mice than C57BL/6J mice. Taken together, C57BL/6J mice are more susceptible to oxidative hepatic injury compared with 129X1/SvJ mice after acute arsenic exposure, which is closely associated with arsenic methylation pattern of the two strains.
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50
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Rahman MT, De Ley M. Arsenic Induction of Metallothionein and Metallothionein Induction Against Arsenic Cytotoxicity. REVIEWS OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2017; 240:151-168. [PMID: 27115674 DOI: 10.1007/398_2016_2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Human exposure to arsenic (As) can lead to oxidative stress that can become evident in organs such as the skin, liver, kidneys and lungs. Several intracellular antioxidant defense mechanisms including glutathione (GSH) and metallothionein (MT) have been shown to minimize As cytotoxicity. The current review summarizes the involvement of MT as an intracellular defense mechanism against As cytotoxicity, mostly in blood. Zinc (Zn) and selenium (Se) supplements are also proposed as a possible remediation of As cytotoxicity. In vivo and in vitro studies on As toxicity were reviewed to summarize cytotoxic mechanisms of As. Intracellular antioxidant defense mechanisms of MT are linked in relation to As cytotoxicity. Arsenic uses a different route, compared to major metal MT inducers such as Zn, to enter/exit blood cells. A number of in vivo and in vitro studies showed that upregulated MT biosynthesis in blood components are related to toxic levels of As. Despite the cysteine residues in MT that aid to bind As, MT is not the preferred binding protein for As. Nonetheless, intracellular oxidative stress due to As toxicity can be minimized, if not eliminated, by MT. Thus MT induction by essential metals such as Zn and Se supplementation could be beneficial to fight against As toxicity.
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Affiliation(s)
| | - Marc De Ley
- Laboratorium voor Biochemie, Katholieke Universiteit Leuven, Celestijnenlaan 200G, Postbus 2413, 3001, Leuven-Heverlee, Belgium
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