1
|
Cheng HWA, Callis TB, Montgomery AP, Danon JJ, Jorgensen WT, Ke YD, Ittner LM, Werry EL, Kassiou M. Understanding In Vitro Pathways to Drug Discovery for TDP-43 Proteinopathies. Int J Mol Sci 2022; 23:ijms232314769. [PMID: 36499097 PMCID: PMC9738080 DOI: 10.3390/ijms232314769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 11/15/2022] [Accepted: 11/18/2022] [Indexed: 11/29/2022] Open
Abstract
The use of cellular models is a common means to investigate the potency of therapeutics in pre-clinical drug discovery. However, there is currently no consensus on which model most accurately replicates key aspects of amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD) pathology, such as accumulation of insoluble, cytoplasmic transactive response DNA-binding protein (TDP-43) and the formation of insoluble stress granules. Given this, we characterised two TDP-43 proteinopathy cellular models that were based on different aetiologies of disease. The first was a sodium arsenite-induced chronic oxidative stress model and the second expressed a disease-relevant TDP-43 mutation (TDP-43 M337V). The sodium arsenite model displayed most aspects of TDP-43, stress granule and ubiquitin pathology seen in human ALS/FTD donor tissue, whereas the mutant cell line only modelled some aspects. When these two cellular models were exposed to small molecule chemical probes, different effects were observed across the two models. For example, a previously disclosed sulfonamide compound decreased cytoplasmic TDP-43 and increased soluble levels of stress granule marker TIA-1 in the cellular stress model without impacting these levels in the mutant cell line. This study highlights the challenges of using cellular models in lead development during drug discovery for ALS and FTD and reinforces the need to perform assessments of novel therapeutics across a variety of cell lines and aetiological models.
Collapse
Affiliation(s)
- Hei W. A. Cheng
- School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia
| | - Timothy B. Callis
- School of Chemistry, Faculty of Science, The University of Sydney, Sydney, NSW 2006, Australia
| | - Andrew P. Montgomery
- School of Chemistry, Faculty of Science, The University of Sydney, Sydney, NSW 2006, Australia
| | - Jonathan J. Danon
- School of Chemistry, Faculty of Science, The University of Sydney, Sydney, NSW 2006, Australia
| | - William T. Jorgensen
- School of Chemistry, Faculty of Science, The University of Sydney, Sydney, NSW 2006, Australia
| | - Yazi D. Ke
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, 2 Technology Place, Macquarie University, Sydney, NSW 2109, Australia
| | - Lars M. Ittner
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, 2 Technology Place, Macquarie University, Sydney, NSW 2109, Australia
| | - Eryn L. Werry
- School of Chemistry, Faculty of Science, The University of Sydney, Sydney, NSW 2006, Australia
- Central Clinical School, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia
| | - Michael Kassiou
- School of Chemistry, Faculty of Science, The University of Sydney, Sydney, NSW 2006, Australia
- Correspondence:
| |
Collapse
|
2
|
Irshad K, Rehman K, Akash MSH, Hussain I. Biochemical Investigation of Therapeutic Potential of Resveratrol Against Arsenic Intoxication. Dose Response 2021; 19:15593258211060941. [PMID: 34887717 PMCID: PMC8649462 DOI: 10.1177/15593258211060941] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Arsenic has been reported to cause damaging effects on different body organs.
This study was designed to evaluate the protective effect of resveratrol (RSV)
against arsenic trioxide (ATO)–induced intoxication in experimental animals.
Twenty-four Wistar rats were allocated in 4 groups: group 1: control group,
received normal diet; group 2: received ATO (3 mg/kg); group 3: received RSV
(8 mg/kg) 30 minutes before administration of ATO; and group 4: received
ascorbic acid (25 mg/kg) 30 minutes before administration of ATO. Treatments
were given to experimental rats daily for consecutive 8 days. At the end of
experimental period, bioaccumulation of arsenic in liver and kidney was assessed
by hydride generation-atomic absorption spectrophotometer to investigate the
association of arsenic accumulation with histological aberrations. Following
parameters were also investigated: serum biochemical profile (alanine
aminotransferase, aspartate transaminase, alkaline phosphatase, blood urea
nitrogen, and creatinine) for evaluation of liver and kidney functions and lipid
peroxidation and oxidative stress (malondialdehyde, glutathione, superoxide
dismutase, catalase, and glutathione peroxidase) in tissue homogenates of liver
and kidney for estimation of oxidative status. The findings of this study
indicate that RSV remarkably ameliorated the hepatic and renal toxicity in
arsenic-exposed rat model due to its strong antioxidant potential.
Collapse
Affiliation(s)
- Kanwal Irshad
- Department of Pharmaceutical Chemistry, Government College University, Faisalabad, Pakistan
| | - Kanwal Rehman
- Department of Pharmacy, University of Agriculture, Faisalabad, Pakistan
| | | | - Iqbal Hussain
- Department of Botany, Government College University, Faisalabad, Pakistan
| |
Collapse
|
3
|
Methneni N, Ezdini K, Ben Abdeljelil N, Van Loco J, Van den Houwe K, Jabeur R, Fekih Sallem O, Jaziri A, Fernandez-Serrano M, Khdary NH, Ben Mansour H. Occurrence of Textile Dyes and Metals in Tunisian Textile Dyeing Effluent: Effects on Oxidative Stress Status and Histological Changes in Balb/c Mice. Int J Mol Sci 2021; 22:ijms222212568. [PMID: 34830450 PMCID: PMC8619562 DOI: 10.3390/ijms222212568] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 11/10/2021] [Accepted: 11/11/2021] [Indexed: 11/23/2022] Open
Abstract
Although it is known that textile wastewater contains highly toxic contaminants whose effects in humans represent public health problems in several countries, studies involving mammal species are scarce. This study was aimed to evaluate the toxicity profile of 90-days oral administration of textile dyeing effluent (TDE) on oxidative stress status and histological changes of male mice. The TDE was collected from the textile plant of Monastir, Tunisia and evaluated for the metals, aromatic amines, and textile dyes using analytical approaches. Metal analysis by ICP-MS showed that the tested TDE exhibited very high levels of Cr, As, and Sr, which exceeded the wastewater emission limits prescribed by WHO and Tunisian authority. The screening of TDE through UPLC-MS/MS confirmed the presence of two textile dyes: a triphenylmethane dye (Crystal violet) and a disperse azo dye (Disperse yellow 3). Exposure to TDE significantly altered the malondialdehyde (MDA), Conjugated dienes (CDs), Sulfhydryl proteins (SHP) and catalase levels in the hepatic and renal tissues. Furthermore, histopathology observation showed that hepatocellular and renal lesions were induced by TDE exposure. The present study concluded that TDE may involve induction of oxidative stress which ensues in pathological lesions in several vital organs suggesting its high toxicity. Metals and textile dyes may be associated with the observed toxicological effects of the TDE. These pollutants, which may have seeped into surrounding rivers in Monastir city, can cause severe health malaise in wildlife and humans.
Collapse
Affiliation(s)
- Nosra Methneni
- Research Unit of Analysis, Process Applied to the Environment–APAE (UR17ES32) Higher Institute of Applied Sciences and Technology Mahdia, University of Monastir, Monastir 5000, Tunisia; (N.M.); (O.F.S.); (A.J.)
- Laboratory of Chemical Residues and Contaminants, Direction of Food Medicines and Consumer Safety, 1050 Brussels, Belgium; (J.V.L.); (K.V.d.H.)
- Department of Chemical Engineering, Faculty of Sciences, University of Granada, 18002 Granada, Spain;
| | - Khawla Ezdini
- Laboratory of Genetic, Biodiversity and Bio-Resources Valorisation, University of Monastir, Monastir 5000, Tunisia;
| | - Nouha Ben Abdeljelil
- Department of Pathology, Fattouma Bourguiba University Hospital, Monastir 5000, Tunisia;
| | - Joris Van Loco
- Laboratory of Chemical Residues and Contaminants, Direction of Food Medicines and Consumer Safety, 1050 Brussels, Belgium; (J.V.L.); (K.V.d.H.)
| | - Kathy Van den Houwe
- Laboratory of Chemical Residues and Contaminants, Direction of Food Medicines and Consumer Safety, 1050 Brussels, Belgium; (J.V.L.); (K.V.d.H.)
| | - Riheb Jabeur
- Department of Matter and Life Sciences, Bretagne Sud University, IRDL, FRE CNRS 3744, CER Yves Coppens, BP573, 56000 Vannes, France;
| | - Ons Fekih Sallem
- Research Unit of Analysis, Process Applied to the Environment–APAE (UR17ES32) Higher Institute of Applied Sciences and Technology Mahdia, University of Monastir, Monastir 5000, Tunisia; (N.M.); (O.F.S.); (A.J.)
| | - Ahlem Jaziri
- Research Unit of Analysis, Process Applied to the Environment–APAE (UR17ES32) Higher Institute of Applied Sciences and Technology Mahdia, University of Monastir, Monastir 5000, Tunisia; (N.M.); (O.F.S.); (A.J.)
| | | | - Nezar H. Khdary
- King Abdulaziz City for Science and Technology (KACST), 11442 Riyadh, Saudi Arabia
- Correspondence: (N.H.K.); (H.B.M.)
| | - Hedi Ben Mansour
- Research Unit of Analysis, Process Applied to the Environment–APAE (UR17ES32) Higher Institute of Applied Sciences and Technology Mahdia, University of Monastir, Monastir 5000, Tunisia; (N.M.); (O.F.S.); (A.J.)
- Correspondence: (N.H.K.); (H.B.M.)
| |
Collapse
|
4
|
Replication Stress Induces Global Chromosome Breakage in the Fragile X Genome. Cell Rep 2021; 32:108179. [PMID: 32966779 DOI: 10.1016/j.celrep.2020.108179] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 07/17/2020] [Accepted: 08/31/2020] [Indexed: 12/12/2022] Open
Abstract
Fragile X syndrome (FXS) is a neurodevelopmental disorder caused by mutations in the FMR1 gene and deficiency of a functional FMRP protein. FMRP is known as a translation repressor whose nuclear function is not understood. We investigated the global impact on genome stability due to FMRP loss. Using Break-seq, we map spontaneous and replication stress-induced DNA double-strand breaks (DSBs) in an FXS patient-derived cell line. We report that the genomes of FXS cells are inherently unstable and accumulate twice as many DSBs as those from an unaffected control. We demonstrate that replication stress-induced DSBs in FXS cells colocalize with R-loop forming sequences. Exogenously expressed FMRP in FXS fibroblasts ameliorates DSB formation. FMRP, not the I304N mutant, abates R-loop-induced DSBs during programmed replication-transcription conflict. These results suggest that FMRP is a genome maintenance protein that prevents R-loop accumulation. Our study provides insights into the etiological basis for FXS.
Collapse
|
5
|
Tohamy AF, Hussein S, Moussa IM, Rizk H, Daghash S, Alsubki RA, Mubarak AS, Alshammari HO, Al-Maary KS, Hemeg HA. Lucrative antioxidant effect of metformin against cyclophosphamide induced nephrotoxicity. Saudi J Biol Sci 2021; 28:2755-2761. [PMID: 34025161 PMCID: PMC8117244 DOI: 10.1016/j.sjbs.2021.03.039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 03/08/2021] [Accepted: 03/09/2021] [Indexed: 11/17/2022] Open
Abstract
Cyclophosphamide is anticancer drug with a well-Known nephrotoxicity. This work was applied to study the lucrative antioxidant influence of metformin as co-therapy on the nephrotoxicity induced by cyclophosphamide in the treatment of different cancer diseases. Four groups of male Sprague Dawley rats were used; Control group (C) received single I.P. injection of 0.2 ml saline, Metformin (MET) group received daily gavage of 200 mg/kg metformin for two weeks, Cyclophosphamide (CP) group received single I.P. injection of 200 mg/kg CP, Protector group (CP.MET) received daily gavage of 200 mg/kg metformin for two weeks and single I.P. injection of 200 mg/kg CP at day 7. By day 14 rats were euthanized. Samples were collected from kidney tissues and blood for kidney function evaluation, histopathological and assessment of oxidative stress markers. The results disclosed that CP yields many functional and structural damage to the kidney, worsened oxidative stress markers and kidney function indicators. The protector group displayed better kidney tissue morphology, acceptable kidney function indicators as well as satisfactory oxidative stress markers. In assumption, metformin could be combined with CP owing to its lucrative effect counter to CP persuaded nephrotoxicity.
Collapse
Affiliation(s)
- Adel F. Tohamy
- Department of Toxicology and Forensic Medicine, Faculty of Veterinary Medicine, Cairo University, Egypt
| | - Shaymaa Hussein
- Department of Cytology and Histology, Faculty of Veterinary Medicine, Cairo University, Egypt
| | - Ihab M. Moussa
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
- Department of Microbiology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
- Corresponding author at: Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia.
| | - Hamdy Rizk
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Cairo University, Egypt
| | - Samer Daghash
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Cairo University, Egypt
| | - Roua A. Alsubki
- Department of Clinical Laboratory Science, Chair of Medical and Molecular Genetics Research, College of Applied Medical Science, King Saud University, Saudi Arabia
| | - Ayman S. Mubarak
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Hanan O. Alshammari
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Khalid S. Al-Maary
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Hassan A. Hemeg
- Department of Medical Technology/Microbiology, College of Applied Medical Science, Taibah University, Madinah, Saudi Arabia
| |
Collapse
|
6
|
Tan Q, Lv Y, Zhao F, Zhou J, Yang Y, Liu Y, Zhang M, Lu F, Wei Y, Chen X, Zhang R, Chen C, Wu B, Zhang X, Li C, Huang H, Cai J, Cao Z, Yu D, Ji JS, Zhao S, Shi X. Association of low blood arsenic exposure with level of malondialdehyde among Chinese adults aged 65 and older. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 758:143638. [PMID: 33288260 PMCID: PMC7897719 DOI: 10.1016/j.scitotenv.2020.143638] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 11/06/2020] [Accepted: 11/08/2020] [Indexed: 04/13/2023]
Abstract
High environmental arsenic exposure can increase chronic oxidative stress in experimental studies and in occupational epidemiology studies. Many regulatory agencies have put forth arsenic exposure limits, it is still unclear that whether low environmental arsenic exposure was associated with adverse health outcome in general population. This study aimed to explore the association of low blood arsenic with malondialdehyde in community-dwelling older adults. We used a cross-sectional study of 2384 older adult individuals aged ≥65 years (mean age: 85 years) from the Healthy Aging and Biomarkers Cohort Study in 2017. The median blood arsenic level was 1.41 μg/L. High oxidative stress was categorized according to the 95th percentile of MDA levels (7.47 nmol/mL). Restricted cubic spline models showed that blood arsenic levels were positively associated with malondialdehyde levels (P < 0.01); and the risk of high oxidative stress was no longer significantly increased when blood arsenic level up to 8.74 μg/L. After adjusting for potential confounders, the odds ratios of high oxidative stress for the second, third, and fourth quartiles of blood arsenic were 2.35 (1.11-4.96), 3.87 (1.90-7.91), and 4.18 (2.00-8.72) (Ptrend < 0.01), compared with the first quartile. We concluded that even low arsenic exposure was associated with higher risk of oxidative stress, in a nonlinear dose-response.
Collapse
Affiliation(s)
- Qiyue Tan
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, China; School of Public Health, Jilin University, Changchun, Jilin, China
| | - Yuebin Lv
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Feng Zhao
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Jinhui Zhou
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yang Yang
- The University of Queensland Diamantina Institute, University of Queensland, Queensland, Australia
| | - Yingchun Liu
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Mingyuan Zhang
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, China; School of Public Health, Jilin University, Changchun, Jilin, China
| | - Feng Lu
- Beijing Municipal Health Commission Information Center, (Beijing Municipal Health Commission Policy Research Center), Beijing 100034, China
| | - Yuan Wei
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, China; School of Public Health, Jilin University, Changchun, Jilin, China
| | - Xin Chen
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, China; School of Public Health, Jilin University, Changchun, Jilin, China
| | - Ruizhi Zhang
- School of Public Health, Jilin University, Changchun, Jilin, China
| | - Chen Chen
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Bing Wu
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, China; Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Xiaochang Zhang
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Chengcheng Li
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Hongyuan Huang
- School of Public Health, Jilin University, Changchun, Jilin, China
| | - Junfang Cai
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Zhaojin Cao
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Di Yu
- The University of Queensland Diamantina Institute, University of Queensland, Queensland, Australia
| | - John S Ji
- Environmental Research Center, Duke Kunshan University, Kunshan, Jiangsu, China; Nicholas School of the Environment, Duke University, Durham, NC, USA
| | - Shuhua Zhao
- School of Public Health, Jilin University, Changchun, Jilin, China
| | - Xiaoming Shi
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, China; Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China.
| |
Collapse
|
7
|
Abstract
Exposure to arsenic in contaminated drinking water is an emerging public health problem that impacts more than 200 million people worldwide. Accumulating lines of evidence from epidemiological studies revealed that chronic exposure to arsenic can result in various human diseases including cancer, type 2 diabetes, and neurodegenerative disorders. Arsenic is also classified as a Group I human carcinogen. In this review, we survey extensively different modes of action for arsenic-induced carcinogenesis, with focus being placed on arsenic-mediated impairment of DNA repair pathways. Inorganic arsenic can be bioactivated by methylation, and the ensuing products are highly genotoxic. Bioactivation of arsenicals also elicits the production of reactive oxygen and nitrogen species (ROS and RNS), which can directly damage DNA and modify cysteine residues in proteins. Results from recent studies suggest zinc finger proteins as crucial molecular targets for direct binding to As3+ or for modifications by arsenic-induced ROS/RNS, which may constitute a common mechanism underlying arsenic-induced perturbations of DNA repair.
Collapse
|
8
|
Biswas S, Anjum A, Banna HU, Rahman M, Siddique AE, Karim Y, Nikkon F, Haque A, Hossain K, Saud ZA. Manganese attenuates the effects of arsenic on neurobehavioral and biochemical changes in mice co-exposed to arsenic and manganese. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:29257-29266. [PMID: 31396869 DOI: 10.1007/s11356-019-06112-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Accepted: 07/29/2019] [Indexed: 06/10/2023]
Abstract
An unsafe level of manganese (Mn) was detected in the drinking water in some arsenic (As)-contaminated areas in Bangladesh. Mn is an essential trace element; however, the intake of a higher level of Mn through the drinking water is associated with the development of toxicity in humans. This study was designed to evaluate the effects of As and Mn co-exposure on neurobehavioral and biochemical alterations in a mouse model. Sodium arsenite (10 mg/kg body weight) and manganese chloride tetrahydrate (10 mg/kg body weight) were given to mice individually and in combination with drinking water for 90 days. Results showed that individual As and Mn exposure as well as co-exposure of As and Mn significantly (p < 0.05) reduced the percent of time spent in the open arms when compared with that of control mice. In addition, percent of time spent in open arms significantly (p < 0.05) increased in co-exposed mice compared with As exposure in elevated plus maze (42.05 ± 1.10 versus 38.94 ± 0.66). In the Morris water maze test, the mean time latency to find the platform was longer in metal-treated mice in comparison to that of control mice (p < 0.05). Importantly, the co-exposed group had shorter time when compared with the As-exposed group during the training periods (p < 0.05). Moreover, co-exposed mice stayed significantly (p < 0.05) more time in the target quadrant in the probe trial in comparison with that of As-exposed mice (27.25 ± 1.21 versus 23.83 ± 0.87 s) but less time than control mice (27.25 ± 1.21 versus 43.17 ± 1.49 s). In addition, a significant (p < 0.05) alteration of biochemical parameters such as ALT, AST, ALP, BChE, and SOD as well as urea and creatinine levels were noted in the As-exposed group compared with the control group and Mn significantly (p < 0.05) attenuated the effects of As in co-exposed mice. Therefore, the results of this study suggest that As and Mn may have some antagonistic effect and Mn could attenuate the As-induced neurobehavioral and biochemical alterations in co-exposed mice.
Collapse
Affiliation(s)
- Sheta Biswas
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Adiba Anjum
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Hasan Ul Banna
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Mizanur Rahman
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Abu Eabrahim Siddique
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Yeasir Karim
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Farjana Nikkon
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Azizul Haque
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC, USA
| | - Khaled Hossain
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Zahangir Alam Saud
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh.
| |
Collapse
|
9
|
Castro-Severyn J, Pardo-Esté C, Sulbaran Y, Cabezas C, Gariazzo V, Briones A, Morales N, Séveno M, Decourcelle M, Salvetat N, Remonsellez F, Castro-Nallar E, Molina F, Molina L, Saavedra CP. Arsenic Response of Three Altiplanic Exiguobacterium Strains With Different Tolerance Levels Against the Metalloid Species: A Proteomics Study. Front Microbiol 2019; 10:2161. [PMID: 31611848 PMCID: PMC6775490 DOI: 10.3389/fmicb.2019.02161] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 09/03/2019] [Indexed: 12/23/2022] Open
Abstract
Exiguobacterium is a polyextremophile bacterial genus with a physiology that allows it to develop in different adverse environments. The Salar de Huasco is one of these environments due to its altitude, atmospheric pressure, solar radiation, temperature variations, pH, salinity, and the presence of toxic compounds such as arsenic. However, the physiological and/or molecular mechanisms that enable them to prosper in these environments have not yet been described. Our research group has isolated several strains of Exiguobacterium genus from different sites of Salar de Huasco, which show different resistance levels to As(III) and As(V). In this work, we compare the protein expression patterns of the three strains in response to arsenic by a proteomic approach; strains were grown in absence of the metalloid and in presence of As(III) and As(V) sublethal concentrations and the protein separation was carried out in 2D electrophoresis gels (2D-GE). In total, 999 spots were detected, between 77 and 173 of which showed significant changes for As(III) among the three strains, and between 90 and 143 for As(V), respectively, compared to the corresponding control condition. Twenty-seven of those were identified by mass spectrometry (MS). Among these identified proteins, the ArsA [ATPase from the As(III) efflux pump] was found to be up-regulated in response to both arsenic conditions in the three strains, as well as the Co-enzyme A disulfide reductase (Cdr) in the two more resistant strains. Interestingly, in this genus the gene that codifies for Cdr is found within the genic context of the ars operon. We suggest that this protein could be restoring antioxidants molecules, necessary for the As(V) reduction. Additionally, among the proteins that change their expression against As, we found several with functions relevant to stress response, e.g., Hpf, LuxS, GLpX, GlnE, and Fur. This study allowed us to shed light into the physiology necessary for these bacteria to be able to tolerate the toxicity and stress generated by the presence of arsenic in their niche.
Collapse
Affiliation(s)
- Juan Castro-Severyn
- Laboratorio de Microbiología Molecular, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile.,Center for Bioinformatics and Integrative Biology, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | - Coral Pardo-Esté
- Laboratorio de Microbiología Molecular, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | - Yoelvis Sulbaran
- Laboratorio de Microbiología Molecular, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | - Carolina Cabezas
- Laboratorio de Microbiología Molecular, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | - Valentina Gariazzo
- Laboratorio de Microbiología Molecular, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | - Alan Briones
- Laboratorio de Microbiología Molecular, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | - Naiyulin Morales
- Laboratorio de Microbiología Molecular, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | - Martial Séveno
- BioCampus Montpellier, CNRS, INSERM, Université de Montpellier, Montpellier, France
| | - Mathilde Decourcelle
- BioCampus Montpellier, CNRS, INSERM, Université de Montpellier, Montpellier, France
| | | | - Francisco Remonsellez
- Laboratorio de Microbiología Aplicada y Extremófilos, Departamento de Ingeniería Química, Facultad de Ingeniería y Ciencias Geológicas, Universidad Católica del Norte, Antofagasta, Chile.,Centro de Investigación Tecnológica del Agua en el Desierto (CEITSAZA), Universidad Católica del Norte, Antofagasta, Chile
| | - Eduardo Castro-Nallar
- Center for Bioinformatics and Integrative Biology, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | - Franck Molina
- Sys2Diag, UMR9005 CNRS ALCEDIAG, Montpellier, France
| | | | - Claudia P Saavedra
- Laboratorio de Microbiología Molecular, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| |
Collapse
|
10
|
Jha DK, Sayrav K, Mishra GP, Mishra BB, Kumari A, Kumar A, Khan PK. Risk assessment of low arsenic exposure using biomarkers of oxidative and genotoxic stress in a piscine model. ECOTOXICOLOGY (LONDON, ENGLAND) 2019; 28:669-679. [PMID: 31256308 DOI: 10.1007/s10646-019-02060-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/30/2019] [Indexed: 06/09/2023]
Abstract
The high level exposure to arsenic induces marked oxidative and genotoxic stress. However, information on the potential of low level arsenic exposure in this context is still scanty. In the present study, the extent of oxidative stress and genetic toxicity induced by low arsenic exposure was explored in freshwater fish Channa punctatus. Fish were exposed to low levels of arsenic (10 and 50 µg L-1) as well as to its high level (500 µg L-1) using sodium arsenite in aquaria water for 14 consecutive days. The TBARS assay for lipid peroxidation exhibited the increased occurrence of oxidative damage in the erythrocytes of fish at both the lower and higher levels of arsenic exposure. The level of reduced glutathione was also elevated in all the three arsenic exposed groups of fish compared to control. In contrast, significant decline was observed in the levels of three major antioxidant enzymes namely, superoxide dismutase, catalase and glutathione peroxidase, upon exposure to higher as well as lower levels of arsenic. Significant increases in micronucleus induction were found in the erythrocytes of fish even at the low levels of arsenic exposure. The study further revealed the occurrence of DNA fragmentation in the erythrocytes of fish at low arsenic exposures as well. The low level exposure to arsenic (using sodium arsenite), therefore, appeared to be capable of inducing noticeable oxidative stress as well as potential genotoxic effect in Channa punctatus. Moreover, the ability of arsenic to induce oxidative stress invariably appeared correlated with its genotoxic potential.
Collapse
Affiliation(s)
- Deepak K Jha
- Department of Zoology, Patna University, Patna, 800 005, India
| | - Kumar Sayrav
- Department of Zoology, Patna University, Patna, 800 005, India
| | - Gaurav P Mishra
- Department of Zoology, Patna University, Patna, 800 005, India
| | - Bipin B Mishra
- Department of Biochemistry, Patna University, Patna, 800 005, India
| | - Anupma Kumari
- Department of Zoology, Patna University, Patna, 800 005, India
| | - Amod Kumar
- Kirori Mal College, University of Delhi, New Delhi, 110 007, India
| | - Parimal K Khan
- Department of Zoology, Patna University, Patna, 800 005, India.
| |
Collapse
|
11
|
Mukhopadhyay P, Seelan RS, Greene RM, Pisano MM. Impact of prenatal arsenate exposure on gene expression in a pure population of migratory cranial neural crest cells. Reprod Toxicol 2019; 86:76-85. [PMID: 30953684 DOI: 10.1016/j.reprotox.2019.04.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Revised: 03/29/2019] [Accepted: 04/02/2019] [Indexed: 11/27/2022]
Abstract
Prenatal exposure to arsenic, a naturally occurring toxic element, causes neural tube defects (NTDs) and, in animal models, orofacial anomalies. Since aberrant development or migration of cranial neural crest cells (CNCCs) can also cause similar anomalies within developing embryos, we examined the effects of in utero exposure to sodium arsenate on gene expression patterns in pure populations of CNCCs, isolated by fluorescence activated cell sorting (FACS), from Cre/LoxP reporter mice. Changes in gene expression were analyzed using Affymetrix GeneChip® microarrays and expression of selected genes was verified by TaqMan quantitative real-time PCR. We report, for the first time, arsenate-induced alterations in the expression of a number of novel candidate genes and canonical cascades that may contribute to the pathogenesis of orofacial defects. Ingenuity Pathway and NIH-DAVID analyses revealed cellular response pathways, biological themes, and potential upstream regulators, that may underlie altered fetal programming of arsenate exposed CNCCs.
Collapse
Affiliation(s)
- Partha Mukhopadhyay
- Department of Oral Immunology and Infectious Diseases, Division of Craniofacial Development and Anomalies, ULSD, University of Louisville, Louisville, KY 40202, United States
| | - Ratnam S Seelan
- Department of Oral Immunology and Infectious Diseases, Division of Craniofacial Development and Anomalies, ULSD, University of Louisville, Louisville, KY 40202, United States
| | - Robert M Greene
- Department of Oral Immunology and Infectious Diseases, Division of Craniofacial Development and Anomalies, ULSD, University of Louisville, Louisville, KY 40202, United States.
| | - M Michele Pisano
- Department of Oral Immunology and Infectious Diseases, Division of Craniofacial Development and Anomalies, ULSD, University of Louisville, Louisville, KY 40202, United States
| |
Collapse
|
12
|
Chauhan D, Srivastava PA, Agnihotri V, Yennamalli RM, Priyadarshini R. Structure and function prediction of arsenate reductase from Deinococcus indicus DR1. J Mol Model 2019; 25:15. [PMID: 30610463 DOI: 10.1007/s00894-018-3885-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 11/28/2018] [Indexed: 12/01/2022]
Abstract
Arsenic prevalence in the environment impelled many organisms to develop resistance over the course of evolution. Tolerance to arsenic, either as the pentavalent [As(V)] form or the trivalent form [As(III)], by bacteria has been well studied in prokaryotes, and the mechanism of action is well defined. However, in the rod-shaped arsenic tolerant Deinococcus indicus DR1, the key enzyme, arsenate reductase (ArsC) has not been well studied. ArsC of D. indicus belongs to the Grx-linked prokaryotic arsenate reductase family. While it shares homology with the well-studied ArsC of Escherichia coli having a catalytic cysteine (Cys 12) and arginine triad (Arg 60, 94, and 107), the active site of D.indicus ArsC contains four residues Glu 9, Asp 53, Arg 86, and Glu 100, and with complete absence of structurally equivalent residue for crucial Cys 12. Here, we report that the mechanism of action of ArsC of D. indicus is different as a result of convergent evolution and most likely able to detoxify As(V) using a mix of positively- and negatively-charged residues in its active site, unlike the residues of E. coli. This suggests toward the possibility of an alternative mechanism of As (V) degradation in bacteria.
Collapse
Affiliation(s)
- Deepika Chauhan
- Department of Life Sciences, School of Natural Sciences, Shiv Nadar University, Gautam Buddha Nagar, Uttar Pradesh, India
| | - Pulkit A Srivastava
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, Himachal Pradesh, 173234, India
| | - Vidushi Agnihotri
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, Himachal Pradesh, 173234, India
| | - Ragothaman M Yennamalli
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, Himachal Pradesh, 173234, India.
| | - Richa Priyadarshini
- Department of Life Sciences, School of Natural Sciences, Shiv Nadar University, Gautam Buddha Nagar, Uttar Pradesh, India.
| |
Collapse
|
13
|
Fallah M, Moghble N, Javadi I, Bahadoran H, Shahriary A. Effect of Curcumin and N-Acetylcysteine on Brain Histology and Inflammatory Factors (MMP-2, 9 and TNF-α) in Rats Exposed to Arsenic. PHARMACEUTICAL SCIENCES 2018. [DOI: 10.15171/ps.2018.39] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Background: Arsenic is a toxic element that widely widespread in environment. Inflammation is now considered as one of the major mechanisms implicated in arsenic poisoning. Curcumin (Cur) and N-acetylcysteine (NAC) are potential antioxidants that protect cells against inflammation. This study aimed to compare the protective effect of Cur and NAC on brain histology and inflammatory factors, including matrix metalloproteinases-2, -9 (MMP-2, 9) and tumor necrosis factor-α (TNF-α) in rats exposed to single dose of arsenic. Methods: Rats were exposed to single dose of arsenic (20mg/kg, by gavage) for 30 days and then treated with 300mg/kg NAC (by gavage) and 100mg/kg Cur (by gavage), individually. Serum level of TNF-α was measured using specific ELISA kits. MMP2 and MMP9 contents were measured using Gelatin Zymography method. Brain samples were collected for histopathological and morphological examinations. Results: Arsenic treatment induced white matter lesions and cellular damages at hippocampal CA1 area of the brain. The number of hippocampal CA1 pyramidal cells was significantly declined in arsenic exposed rats (p<0.05). Treatment with NAC and Cur improved these abnormalities. The mean levels of MMP2, MMP9 and TNF-α inflammatory biomarkers were slightly declined after treatment with NAC and Cur (p>0.05). Conclusion: NAC and Cur play an important role in protecting the hippocampal CA1 cells injury induced by arsenic.
Collapse
Affiliation(s)
- Mostafa Fallah
- Department of Toxicology, Faculty of Pharmacy, Islamic Azad University, Shahreza Branch, Shahreza, Iran
| | - Najmeh Moghble
- Department of Toxicology, Faculty of Pharmacy, Islamic Azad University, Shahreza Branch, Shahreza, Iran
| | - Iraj Javadi
- Department of Toxicology, Faculty of Pharmacy, Islamic Azad University, Shahreza Branch, Shahreza, Iran
| | - Hossein Bahadoran
- Department of Anatomy, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Alireza Shahriary
- Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| |
Collapse
|
14
|
Tawk C, Nigro G, Rodrigues Lopes I, Aguilar C, Lisowski C, Mano M, Sansonetti P, Vogel J, Eulalio A. Stress-induced host membrane remodeling protects from infection by non-motile bacterial pathogens. EMBO J 2018; 37:embj.201798529. [PMID: 30389666 PMCID: PMC6276891 DOI: 10.15252/embj.201798529] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 10/05/2018] [Accepted: 10/10/2018] [Indexed: 01/01/2023] Open
Abstract
While mucosal inflammation is a major source of stress during enteropathogen infection, it remains to be fully elucidated how the host benefits from this environment to clear the pathogen. Here, we show that host stress induced by different stimuli mimicking inflammatory conditions strongly reduces the binding of Shigella flexneri to epithelial cells. Mechanistically, stress activates acid sphingomyelinase leading to host membrane remodeling. Consequently, knockdown or pharmacological inhibition of the acid sphingomyelinase blunts the stress-dependent inhibition of Shigella binding to host cells. Interestingly, stress caused by intracellular Shigella replication also results in remodeling of the host cell membrane, in vitro and in vivo, which precludes re-infection by this and other non-motile pathogens. In contrast, Salmonella Typhimurium overcomes the shortage of permissive entry sites by gathering effectively at the remaining platforms through its flagellar motility. Overall, our findings reveal host membrane remodeling as a novel stress-responsive cell-autonomous defense mechanism that protects epithelial cells from infection by non-motile bacterial pathogens.
Collapse
Affiliation(s)
- Caroline Tawk
- Host RNA Metabolism Group, Institute for Molecular Infection Biology (IMIB), University of Würzburg, Würzburg, Germany.,RNA Biology Group, Institute for Molecular Infection Biology (IMIB), University of Würzburg, Würzburg, Germany
| | - Giulia Nigro
- Molecular Microbial Pathogenesis Laboratory, Institut Pasteur, Paris, France
| | - Ines Rodrigues Lopes
- Functional Genomics and RNA-based Therapeutics, UC-BIOTECH, Center for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal.,RNA & Infection Group, UC-BIOTECH, Center for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal
| | - Carmen Aguilar
- Host RNA Metabolism Group, Institute for Molecular Infection Biology (IMIB), University of Würzburg, Würzburg, Germany
| | - Clivia Lisowski
- Host RNA Metabolism Group, Institute for Molecular Infection Biology (IMIB), University of Würzburg, Würzburg, Germany
| | - Miguel Mano
- Functional Genomics and RNA-based Therapeutics, UC-BIOTECH, Center for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal
| | - Philippe Sansonetti
- Molecular Microbial Pathogenesis Laboratory, Institut Pasteur, Paris, France
| | - Jörg Vogel
- RNA Biology Group, Institute for Molecular Infection Biology (IMIB), University of Würzburg, Würzburg, Germany.,Helmholtz Institute for RNA-Based Infection Research (HIRI), Würzburg, Germany
| | - Ana Eulalio
- Host RNA Metabolism Group, Institute for Molecular Infection Biology (IMIB), University of Würzburg, Würzburg, Germany .,RNA & Infection Group, UC-BIOTECH, Center for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal
| |
Collapse
|
15
|
Raza M, Mahjabeen I, Fahim M, Malik WA, Khan AU, Kayani MA, Khan A, Akram Z. Redox balance and DNA fragmentation in arsenic-exposed occupational workers from different industries of Pakistan. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:33381-33390. [PMID: 30259327 DOI: 10.1007/s11356-018-3274-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Accepted: 09/18/2018] [Indexed: 06/08/2023]
Abstract
AbstractOccupational exposure accounts for a contact between workers and different toxicants. Present study was designed to measure the arsenic-induced DNA fragmentation and oxidative stress in exposed workers. Blood, hair, and nail samples were collected from welding, brick kiln, furniture, pesticide, and paint industries (n = 50/industry) of Pakistan along with 200 controls. DNA damage was calculated using DNA fragmentation assay. Antioxidant enzymes (CAT, SOD, GPx) were measured using ELISA. Results revealed that arsenic exposure induced DNA fragmentation in brick kiln, furniture, and welding industries. Enzyme activity was reduced in five industries compared to control. In exposed group, significant depletion of enzymes was observed in furniture, welding, and brick kiln workers. Based on age and time of exposure, significant difference was observed in welding and brick kiln group. Smokers of exposed group showed significantly reduced levels of enzymes compared to controls. Arsenic deposition was observed higher in the hair, nail, and blood samples of exposed group (P < 0.001) compared to control. Likewise, lead and cadmium contents were higher in the blood samples of industrial workers compared to control. This study suggests increased trend of cellular damage and oxidative stress in occupational workers profoundly in welding, furniture, and brick kiln industries. Moreover, this study recognizes the contribution of age, exposure time, and smoking status toward arsenic-induced oxidative stress and DNA fragmentation.
Collapse
Affiliation(s)
- Maryam Raza
- Cancer Genetics Research Group, Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan
| | - Ishrat Mahjabeen
- Cancer Genetics Research Group, Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan
| | - Muhammad Fahim
- Cancer Genetics Research Group, Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan
| | - Waqar Ahmad Malik
- Cancer Genetics Research Group, Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan
| | - Asad Ullah Khan
- Cancer Genetics Research Group, Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan
| | - Mahmood Akhtar Kayani
- Cancer Genetics Research Group, Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan
| | - Ayesha Khan
- Cancer Genetics Research Group, Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan
| | - Zertashia Akram
- Cancer Genetics Research Group, Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan.
| |
Collapse
|
16
|
Ojo OA, Ojo AB, Awoyinka O, Ajiboye BO, Oyinloye BE, Osukoya OA, Olayide II, Ibitayo A. Aqueous extract of Carica papaya Linn. roots potentially attenuates arsenic induced biochemical and genotoxic effects in Wistar rats. J Tradit Complement Med 2018; 8:324-334. [PMID: 29736388 PMCID: PMC5934704 DOI: 10.1016/j.jtcme.2017.08.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2016] [Revised: 07/07/2017] [Accepted: 08/01/2017] [Indexed: 01/19/2023] Open
Abstract
In Africa, the fruit, leaf, seed and roots of Carica papaya Linn. are generally used to treat a variety of diseases such as malaria, cancer, and cardiovascular diseases. In this study, we evaluated the protective potentials of aqueous extract of C. papaya roots on arsenic-induced biochemical and genotoxic effects in Wistar rats. Rats were induced intraperitoneal with sodium arsenate (dissolved in distilled water at 3 mg/kg body weight) for 21 days and the animals were administered simultaneously with 200 mg/kg body weight vitamin C, 100 and 150 mg/kg body weight of the C. papaya Linn. root aqueous extract once daily for three weeks. Results obtained reveals that activities of plasma 8-OHdG, serum lipids concentration, atherogenic index (AI), coronary artery index (CRI), aspartate transaminase, alanine transaminase, alkaline phosphatase, total bilirubin levels were elevated significantly (p < 0.05) and catalase, glutathione peroxidase, superoxide dismutase, plasma hematological profile were progressively reduced (p < 0.05) in arsenic-alone exposed rats. Significant increase in the quantity of chromosomal aberrations (CA), micronuclei (MN) frequency, oxidative damages in the bone marrow cells from arsenic alone rats was observed. Though, mitotic index scores in these cells were progressively reduced (p < 0.05). In animals administered with aqueous extract of C. papaya roots and vitamin C, the altered parameters were significantly recovered towards the levels observed in normal control rats. These results suggest that aqueous C. papaya roots preparations might have therapeutic potential as a supplement that can be applied in arsenic poisoning.
Collapse
Affiliation(s)
- Oluwafemi Adeleke Ojo
- Phytomedicine, Biochemical Toxicology and Diabetes Research Laboratories, Department of Biochemistry, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
- Corresponding author. Department of Chemical Sciences, Biochemistry Unit, Afe Babalola University, Ado-Ekiti, Nigeria.
| | - Adebola Busola Ojo
- Department of Medical Biochemistry, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
| | - Olayinka Awoyinka
- Department of Medical Biochemistry, Faculty of Basic Medical Sciences, Ekiti State University, Ado-Ekiti, Nigeria
| | - Basiru Olaitan Ajiboye
- Phytomedicine, Biochemical Toxicology and Diabetes Research Laboratories, Department of Biochemistry, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
| | - Babatunji Emmanuel Oyinloye
- Phytomedicine, Biochemical Toxicology and Diabetes Research Laboratories, Department of Biochemistry, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
| | - Olukemi Adetutu Osukoya
- Phytomedicine, Biochemical Toxicology and Diabetes Research Laboratories, Department of Biochemistry, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
| | - Israel Idowu Olayide
- Phytomedicine, Biochemical Toxicology and Diabetes Research Laboratories, Department of Biochemistry, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
| | - Adejoke Ibitayo
- Department of Biological Sciences, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
| |
Collapse
|
17
|
Sage AP, Minatel BC, Ng KW, Stewart GL, Dummer TJB, Lam WL, Martinez VD. Oncogenomic disruptions in arsenic-induced carcinogenesis. Oncotarget 2018; 8:25736-25755. [PMID: 28179585 PMCID: PMC5421966 DOI: 10.18632/oncotarget.15106] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 01/24/2017] [Indexed: 12/13/2022] Open
Abstract
Chronic exposure to arsenic affects more than 200 million people worldwide, and has been associated with many adverse health effects, including cancer in several organs. There is accumulating evidence that arsenic biotransformation, a step in the elimination of arsenic from the human body, can induce changes at a genetic and epigenetic level, leading to carcinogenesis. At the genetic level, arsenic interferes with key cellular processes such as DNA damage-repair and chromosomal structure, leading to genomic instability. At the epigenetic level, arsenic places a high demand on the cellular methyl pool, leading to global hypomethylation and hypermethylation of specific gene promoters. These arsenic-associated DNA alterations result in the deregulation of both oncogenic and tumour-suppressive genes. Furthermore, recent reports have implicated aberrant expression of non-coding RNAs and the consequential disruption of signaling pathways in the context of arsenic-induced carcinogenesis. This article provides an overview of the oncogenomic anomalies associated with arsenic exposure and conveys the importance of non-coding RNAs in the arsenic-induced carcinogenic process.
Collapse
Affiliation(s)
- Adam P Sage
- Department of Integrative Oncology, British Columbia Cancer Research Centre, Vancouver, British Columbia, Canada
| | - Brenda C Minatel
- Department of Integrative Oncology, British Columbia Cancer Research Centre, Vancouver, British Columbia, Canada
| | - Kevin W Ng
- Department of Integrative Oncology, British Columbia Cancer Research Centre, Vancouver, British Columbia, Canada
| | - Greg L Stewart
- Department of Integrative Oncology, British Columbia Cancer Research Centre, Vancouver, British Columbia, Canada
| | - Trevor J B Dummer
- Centre of Excellence in Cancer Prevention, School of Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada
| | - Wan L Lam
- Department of Integrative Oncology, British Columbia Cancer Research Centre, Vancouver, British Columbia, Canada
| | - Victor D Martinez
- Department of Integrative Oncology, British Columbia Cancer Research Centre, Vancouver, British Columbia, Canada
| |
Collapse
|
18
|
Shao Y, Zhao H, Wang Y, Liu J, Li J, Chai H, Xing M. Arsenic and/or copper caused inflammatory response via activation of inducible nitric oxide synthase pathway and triggered heat shock protein responses in testis tissues of chicken. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:7719-7729. [PMID: 29288301 DOI: 10.1007/s11356-017-1042-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Accepted: 12/12/2017] [Indexed: 06/07/2023]
Abstract
The aim of this study is to investigate the effects of arsenic (As) and copper (Cu) on the inflammatory response, and the protective roles of heat shock proteins (Hsps) in chicken testes. Seventy-two 1-day-old male Hy-line chickens were treated with 30 mg/kg feed of arsenic trioxide (As2O3) and/or 300 mg/kg feed of copper sulfate (CuSO4) for 4, 8, and 12 weeks. The histological changes, inducible nitric oxide synthase (iNOS) activity, and the expressions of Hsps and inflammatory cytokines were detected. The results showed that slight histology changes were obvious in the testis tissue exposure to treatment groups. The activity and the protein level of iNOS were increased compared to the control group. The mRNA levels of proinflammatory cytokines and inflammatory factors were increased as a whole. However, anti-inflammatory cytokines were inhibited. The mRNA and protein levels of Hsp60, Hsp70, and Hsp90 were upregulated. These results suggested that sub-chronic exposure to As and/or Cu induced testicular poisoning in chickens. Increased Hsps tried to protect chicken testis tissues from tissues damage caused by inflammation. In conclusion, testicular poisoning induced by As and/or Cu caused inflammatory response and heat shock protein response in chicken testis tissues.
Collapse
Affiliation(s)
- Yizhi Shao
- College of Wildlife Resource, Northeast Forestry University, Harbin, 150040, Heilongjiang Province, People's Republic of China
| | - Hongjing Zhao
- College of Wildlife Resource, Northeast Forestry University, Harbin, 150040, Heilongjiang Province, People's Republic of China
| | - Yu Wang
- College of Wildlife Resource, Northeast Forestry University, Harbin, 150040, Heilongjiang Province, People's Republic of China
| | - Juanjuan Liu
- College of Wildlife Resource, Northeast Forestry University, Harbin, 150040, Heilongjiang Province, People's Republic of China
| | - Jinglun Li
- College of Wildlife Resource, Northeast Forestry University, Harbin, 150040, Heilongjiang Province, People's Republic of China
| | - Hongliang Chai
- College of Wildlife Resource, Northeast Forestry University, Harbin, 150040, Heilongjiang Province, People's Republic of China.
| | - Mingwei Xing
- College of Wildlife Resource, Northeast Forestry University, Harbin, 150040, Heilongjiang Province, People's Republic of China.
| |
Collapse
|
19
|
Clementino M, Shi X, Zhang Z. Oxidative Stress and Metabolic Reprogramming in Cr(VI) Carcinogenesis. CURRENT OPINION IN TOXICOLOGY 2017; 8:20-27. [PMID: 29568811 DOI: 10.1016/j.cotox.2017.11.015] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Cr(VI)-containing compounds are well-established lung carcinogens. Chronic exposure of the normal human epithelial cells is able to induce malignant cell transformation, the first stage of metal carcinogenesis. These Cr(VI)-transformed cells exhibit increased level of antioxidants, reduced capacity of generating reactive oxygen species (ROS), and development of apoptosis resistance, promoting tumorigenesis of Cr(VI)-transformed cells, the second stage of metal carcinogenesis. The mechanism of Cr(VI) induced carcinogenesis is still under investigation. Recent studies indicate that ROS play a positive role in the first stage while a negative role in the second stage. Transformed cells adapt metabolism to support tumor initiation and progression. Altered metabolic activities directly participate in the process of cell transformation or support a large requirement for nucleotides, amino acids, and lipids for tumor growth. In malignantly Cr(VI)-transformed cells, mitochondrial oxidative phosphorylation is defective, and pentose phosphate pathway, glycolysis, and glutaminolysis are upregulated. These metabolic reprogramming supports rapid cell proliferation and contributes to tumorigenesis of Cr(VI)-transformed cells. This article summarizes the current progress in the studies of metabolic reprogramming and Cr(VI) carcinogenesis with emphasis on the metabolic enzymes and oxidative stress related major oncogenic pathways.
Collapse
Affiliation(s)
- Marco Clementino
- Department of Toxicology and Cancer Biology, University of Kentucky, Lexington, KY 40536
| | - Xianglin Shi
- Center for Research on Environmental Diseases, University of Kentucky, Lexington, KY 40536
| | - Zhuo Zhang
- Department of Toxicology and Cancer Biology, University of Kentucky, Lexington, KY 40536
| |
Collapse
|
20
|
Kang MH, Das J, Gurunathan S, Park HW, Song H, Park C, Kim JH. The cytotoxic effects of dimethyl sulfoxide in mouse preimplantation embryos: a mechanistic study. Am J Cancer Res 2017; 7:4735-4752. [PMID: 29187900 PMCID: PMC5706096 DOI: 10.7150/thno.21662] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 09/18/2017] [Indexed: 12/29/2022] Open
Abstract
Rationale: Dimethyl sulfoxide (DMSO) is commonly used as a solvent for water-insoluble substances, a vehicle for drug therapy, and a cryoprotectant for cultured cells. DMSO induced embryonic defects and its mechanism of action remains unclear. The rationale is based on the assumption that DMSO supplementation should induce long-term negative effects on both pre- and post-implantation embryo development. Methods: DMSO induced oxidative stress, ER stress, autophagy, mitophagy, signaling responsible genes and proteins were determined by RT-qPCR, Western blotting, immunofluorescence, and confocal microscopy. DMSO induced mitochondrial dysfunction was measured by transmission electron microcopy and JC-1 assay. Apoptosis was estimated using TUNEL and comet assay. Post-implantation embryo developmental capability was estimated by implantation site and fetus numbers. Results: Exposure to DMSO induced an early oxidative stress response within 0.5 to 2 h in 1-cell zygotes by disrupting the balance of pro- and anti-oxidants. Notably, DMSO-treated 2-cell embryos showed increased expression of unfolded protein response genes such as Hspa5, Hsp90b1, Ddit3, Atf4, and Xbp1. As a result, the development of many embryos is arrested at the 2-cell, 4-cell, or morula stages in a dose-dependent manner. Further, DMSO-induced endoplasmic reticulum stress increased mitochondrial Ca2+ levels, induced mitochondrial depolarization/dysfunction, and induced apoptotic cell death via the JNK/ATF2-dependent pathway. Consequently, treatment with DMSO increased the expression of autophagy initiation-, phagophore elongation-, and autophagosome formation-related genes, as well as localization of PINK1/Parkin, which are the main mediators of mitophagy, in mitochondria. Interestingly, DMSO causes cytotoxic effects in preimplantation embryos by inducing extensive mitophagy and autophagy. Especially, DMSO treatment decreased the inner cell mass and trophectoderm cell numbers as well as mRNA expression of B3gnt5 and Wnt3a in developed blastocysts, which decreased the implantation and developmental rates of full-term offspring after being transferred into pseudopregnant mice. Conclusion: These results provide a significant contribution to finding effective protective agents to combat DMSO mediated reproductive toxicity for application in human embryos in the near future.
Collapse
|
21
|
Omotola MB, Adeosun IO, Obuotor EM, Akomolafe RO, Ayannuga OA. Assessment of the Effects of Graded Doses of Polyphenolic-Rich Fraction of Garcinia kola Seeds on Pituitary-Testicular Axis of Male Wistar Rats. Dose Response 2017; 15:1559325817729260. [PMID: 29051716 PMCID: PMC5639973 DOI: 10.1177/1559325817729260] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Revised: 02/17/2017] [Accepted: 06/28/2017] [Indexed: 11/15/2022] Open
Abstract
This study evaluated the ameliorative and prophylactic effects of 2 different doses of polyphenolic-rich fraction of Garcinia kola (PPRFGk) seeds on the histology and hormones of pituitary–testicular axis of male Wistar rats. Thirty-five male Wistar rats (150-200 g) were divided into 7 groups of 5 rats each. Groups I and II were given distilled water (0.5 mL/day) for 8 days followed by propylene glycol (0.2 mL/d) and 600 mg/kg of PPRFGk, respectively, for 21 days. Group III received sodium arsenate (8 days), left untreated for 21 days. Groups IV and V received sodium arsenate (20 mg/kg) for 8 days followed by PPRFGk (300 and 600 mg/kg, respectively) for 21 days. Groups VI and VII received PPRFGk (300 and 600 mg/kg, respectively) for 21 days followed by sodium arsenate (20 mg/kg) for 8 days. Rats were killed by cervical dislocation 24 hours after the last dose and their blood collected through cardiac puncture. Blood sera were assayed for the levels of follicle-stimulating hormone (FSH), luteinizing hormone (LH), and testosterone using immunoassay techniques. Histology of the pituitary gland and testes was carried out. A significant reduction was observed in the concentration of FSH in groups IV, V, VI, and VII in comparison with groups I and II. The concentrations of both LH and testosterone showed significant decreases in groups IV, V, VI, and VII in comparison with group I. Group III presented with the lowest serum hormonal concentrations. Photomicrographs of the pituitary gland revealed greatly reduced basophils in group III and mildly reduced basophils in groups IV, VI, and VII in comparison with groups I and II. Group V revealed hypercellularized and distorted basophils. Photomicrographs of the testes showed detachment of the seminiferous tubules from the basement membrane and disruption of the interstitial space which was worse in group III, moderate in groups V and VI, and mild in group VII. In conclusion, PPRFGk effected a dose-dependent reversal and prevention of the perturbations caused by arsenate in rats.
Collapse
Affiliation(s)
| | | | - Efere M Obuotor
- Department of Biochemistry, Obafemi Awolowo University, Ile-Ife, Nigeria
| | - Rufus O Akomolafe
- Department of Physiological Sciences, Obafemi Awolowo University, Ile-Ife, Nigeria
| | - Olugbenga A Ayannuga
- Department of Anatomy and Cell Biology, Obafemi Awolowo University, Ile-Ife, Nigeria
| |
Collapse
|
22
|
Yan-Ping D, Xiao-Qin G, Xiao Ping M, Ying Quan Y. Effects of Chronic Exposure to Sodium Arsenite on Expressions of VEGF and VEGFR2 Proteins in the Epididymis of Rats. BIOMED RESEARCH INTERNATIONAL 2017; 2017:2597256. [PMID: 28791301 PMCID: PMC5534313 DOI: 10.1155/2017/2597256] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Revised: 04/09/2017] [Accepted: 05/14/2017] [Indexed: 11/21/2022]
Abstract
OBJECTIVE To study the expressions of VEGF and VEGFR2 at protein level in the epididymis of rats with arsenism. METHODS Forty male Sprague-Dawley rats were randomly divided into four groups: the high dose arsenic infected group (60.0 mg/L in water), the middle dose arsenic infected group (12.0 mg/L in water), the low dose arsenic infected group (2.4 mg/L in water), and the control group (distilled water). Rats were treated with arsenic through drinking water for 6 consecutive months. At the end of the experiment, the average densitometry values of apoptotic cells in epididymis tubules were determined by TUNEL method; the protein and mRNA levels of VEGF and VEGFR2 were observed by immunohistochemistry, Western blot, and real time fluorescent quantitative PCR, respectively. RESULTS Compared with the control group, in each infected group, the average densitometry values of apoptotic cells in the epididymis tubules were significantly lower. Compared with control group, protein and mRNA levels of VEGF and VEGFR2 in each infected group were obviously declined. The correlations between protein and mRNA levels of VEGF and VEGFR2 were positively exhibited (r = 0.843, 0.869, p < 0.05). CONCLUSIONS Arsenism affects the expressions of VEGF and VEGFR2 in the epididymis of rats and results in apoptosis of pathophysiology of male infertility.
Collapse
Affiliation(s)
- Dai Yan-Ping
- Department of Histology and Embryology, Guizhou Medical University, Guiyang, Guizhou 550004, China
- People's Hospital in Yueyanglou District, Yueyang, Hunan 414000, China
| | - Gao Xiao-Qin
- Department of Histology and Embryology, Zunyi Medical College, Zunyi, Guizhou 563000, China
| | - Ma Xiao Ping
- Department of Histology and Embryology, Zunyi Medical College, Zunyi, Guizhou 563000, China
| | - Yue Ying Quan
- Department of Histology and Embryology, Zunyi Medical College, Zunyi, Guizhou 563000, China
| |
Collapse
|
23
|
Ghosh S, Mishra R, Biswas S, Bhadra RK, Mukhopadhyay PK. α-Lipoic Acid Mitigates Arsenic-Induced Hematological Abnormalities in Adult Male Rats. IRANIAN JOURNAL OF MEDICAL SCIENCES 2017; 42:242-250. [PMID: 28533572 PMCID: PMC5429492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
BACKGROUND Arsenic toxicity is a major global health problem and exposure via contaminated drinking water has been associated with hematological and other systemic disorders. The present investigation has been conducted in adult male rats to evaluate the protective ability of α-lipoic acid (ALA) against such hematological disorders. METHODS Twenty-four adult male Wister rats (b.wt.130±10g) were grouped and accordingly group I (control) received the normal diet, group II (treated) was given arsenic orally for 28 consecutive days as arsenic trioxide (3 mg/kgbw/rat/day) whereas group III (supplemented) received the same dose of arsenic along with ALA (25 mg/kgbw/rat/day) as oral supplement. Hematological profile, plasma oxidant/antioxidant status, and erythrocyte morphology were assessed. Statistical analysis was done by one-way ANOVA using SPSS software (version 16.0). RESULTS Arsenic exposure caused reduction of erythrocyte (P=0.021), leucocyte (P<0.001), and hemoglobin (P=0.031) associated with echinocytic transformation as evidenced by light and scanning electron microscopic studies. The other significantly altered parameters include increased mean corpuscular volume (P=0.041) and lymphocytopenia (P<0.001) with insignificant neutropenia and eosinophilia. Altered serum oxidative balance as evidenced by decreased TAS (P<0.001) and increased TOS (P<0.001) with OSI (P<0.001) was also noted. The dietary supplementation of ALA has a beneficial effect against the observed (P<0.05) arsenic toxicities. It brings about the protection by restoring the hematological redox and inflammatory status near normal in treated rats. Arsenic-induced morphological alteration of erythrocytes was also partially attenuated by ALA supplementation. CONCLUSION It is concluded that arsenicosis is associated with hematological alterations and ALA co-supplementation can partially alleviate these changes in an experimental male rat model.
Collapse
Affiliation(s)
- Sonali Ghosh
- Department of Biological Sciences, Presidency University, Kolkata, India
| | - Raghwendra Mishra
- Department of Biological Sciences, Presidency University, Kolkata, India,Department of Physiology, University of Calcutta, Kolkata, India
| | - Sagnik Biswas
- Department of Biological Sciences, Presidency University, Kolkata, India
| | - Rupak K Bhadra
- Department of Infectious Diseases & Immunology, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Prabir K Mukhopadhyay
- Department of Biological Sciences, Presidency University, Kolkata, India,Correspondence: Prabir K. Mukhopadhyay, PhD; Department of Biological Sciences, Presidency University, 86/1 College Street, Kolkata-700073, India Tel: +91 943 3160257
| |
Collapse
|
24
|
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: 185] [Impact Index Per Article: 26.4] [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.
Collapse
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
| |
Collapse
|
25
|
Zhang F, Xiao Y, Wang Y. SILAC-Based Quantitative Proteomic Analysis Unveils Arsenite-Induced Perturbation of Multiple Pathways in Human Skin Fibroblast Cells. Chem Res Toxicol 2017; 30:1006-1014. [PMID: 28140569 DOI: 10.1021/acs.chemrestox.6b00416] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Humans are exposed to arsenic species through inhalation, ingestion, and dermal contact, which may lead to skin, liver, and bladder cancers as well as cardiovascular and neurological diseases. The mechanisms underlying the cytotoxic and carcinogenic effects of arsenic species, however, remain incompletely understood. To exploit the mechanisms of toxicity of As(III), we employed stable isotope labeling by amino acids in cell culture (SILAC) together with LC/MS/MS analysis to quantitatively assess the As(III)-induced perturbation of the entire proteome of cultured human skin fibroblast cells. Shotgun proteomic analysis on an LTQ-Orbitrap Velos mass spectrometer facilitated the quantification of 3880 proteins, 130 of which were quantified in both forward and reverse SILAC-labeling experiments and displayed significant alterations (>1.5 fold) upon arsenite treatment. Targeted analysis on a triple-quadrupole mass spectrometer in multiple-reaction monitoring (MRM) mode confirmed the quantification results of some select proteins. Ingenuity pathway analysis revealed the arsenite-induced alteration of more than 10 biological pathways, including the Nrf2-mediated oxidative stress response pathway, which is represented by the upregulation of nine proteins in this pathway. In addition, arsenite induced changes in expression levels of a number of selenoproteins and metallothioneins. Together, the results from the present study painted a more complete picture regarding the biological pathways that are altered in human skin fibroblast cells upon arsenite exposure.
Collapse
Affiliation(s)
- Fan Zhang
- Department of Chemistry, University of California , Riverside, California 92521-0403, United States
| | - Yongsheng Xiao
- Department of Chemistry, University of California , Riverside, California 92521-0403, United States
| | - Yinsheng Wang
- Department of Chemistry, University of California , Riverside, California 92521-0403, United States
| |
Collapse
|
26
|
FALLAHZADEH-ABARGHOOEI L, SAMADAEI-GHADIKOLAIE M, SAADAT I, SAADAT M. Effect of Sodium Arsenite on the Expression of Antioxidant Genes ( SOD2 and CAT) in MCF-7 and Jurkat Cell Lines. IRANIAN JOURNAL OF PUBLIC HEALTH 2017; 46:229-234. [PMID: 28451559 PMCID: PMC5402782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
BACKGROUND Sodium arsenite (NaAsO2) has potent cytotoxic activity in human cancer cells. Oxidative stress has been suggested as a mechanism for arsenic-induced carcinogenesis. The purpose of the present study was to evaluate the alteration of mRNA levels of catalase (CAT) and superoxide dismutase 2 (SOD2) in MCF-7 and Jurkat cells after exposure to NaAsO2. METHODS Methylthiazol tetrazolium (MTT) viability assay was performed to evaluate cytotoxicity of NaAsO2 in MCF-7 and Jurkat cells. For evaluating the expression levels of the CAT and SOD2, we used two concentrations of NaAsO2 (5 and 15 μM), lower than the concentrations at which 50% of cell viability were lost. The cells were treated with co-treatment of NaAsO2 (15 μM) and N-acetyl-cysteine (NAC; 5 μM) in the media for 24 h. The control cells were maintained in sodium arsenite free growth medium. The experiments were done triplicate. Using quantitative real-time PCR, the expression levels of CAT and SOD2 were quantified. One sample student's t test was performed for comparisons of mRNA levels between treatment groups and their corresponding untreated control cells. RESULTS CAT mRNA level decreased significantly in both cell lines following exposure to NaAsO2 (P<0.05). Expression levels of SOD2 decreased in Jurkat cells and increased in MCF-7 cells after treatment with NaAsO2 (P<0.05). CONCLUSION After cells exposure to NaAsO2, CAT mRNA level decreased in both examined cell lines but the alterations of SOD2 mRNA level is cell specific. The NAC modulated the NaAsO2 associated alterations of CAT and SOD2 mRNA levels, therefore, the NaAsO2 might act through inducing reactive oxygen species.
Collapse
|
27
|
Srivastava RK, Li C, Wang Y, Weng Z, Elmets CA, Harrod KS, Deshane JS, Athar M. Activating transcription factor 4 underlies the pathogenesis of arsenic trioxide-mediated impairment of macrophage innate immune functions. Toxicol Appl Pharmacol 2016; 308:46-58. [PMID: 27461142 PMCID: PMC5978774 DOI: 10.1016/j.taap.2016.07.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Revised: 07/06/2016] [Accepted: 07/22/2016] [Indexed: 12/12/2022]
Abstract
Chronic arsenic exposure to humans is considered immunosuppressive with augmented susceptibility to several infectious diseases. The exact molecular mechanisms, however, remain unknown. Earlier, we showed the involvement of unfolded protein response (UPR) signaling in arsenic-mediated impairment of macrophage functions. Here, we show that activating transcription factor 4 (ATF4), a UPR transcription factor, regulates arsenic trioxide (ATO)-mediated dysregulation of macrophage functions. In ATO-treated ATF4(+/+) wild-type mice, a significant down-regulation of CD11b expression was associated with the reduced phagocytic functions of peritoneal and lung macrophages. This severe immuno-toxicity phenotype was not observed in ATO-treated ATF4(+/-) heterozygous mice. To confirm these observations, we demonstrated in Raw 264.7 cells that ATF4 knock-down rescues ATO-mediated impairment of macrophage functions including cytokine production, bacterial engulfment and clearance of engulfed bacteria. Sustained activation of ATF4 by ATO in macrophages induces apoptosis, while diminution of ATF4 expression protects against ATO-induced apoptotic cell death. Raw 264.7 cells treated with ATO also manifest dysregulated Ca(++) homeostasis. ATO induces Ca(++)-dependent calpain-1 and caspase-12 expression which together regulated macrophage apoptosis. Additionally, apoptosis was also induced by mitochondria-regulated pathway. Restoring ATO-impaired Ca(++) homeostasis in ER/mitochondria by treatments with the inhibitors of inositol 1,4,5-trisphosphate receptor (IP3R) and voltage-dependent anion channel (VDAC) attenuate innate immune functions of macrophages. These studies identify a novel role for ATF4 in underlying pathogenesis of macrophage dysregulation and immuno-toxicity of arsenic.
Collapse
Affiliation(s)
- Ritesh K Srivastava
- Department of Dermatology and Skin Diseases Research Center, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Changzhao Li
- Department of Dermatology and Skin Diseases Research Center, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Yong Wang
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Zhiping Weng
- Department of Dermatology and Skin Diseases Research Center, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Craig A Elmets
- Department of Dermatology and Skin Diseases Research Center, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Kevin S Harrod
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Jessy S Deshane
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA.
| | - Mohammad Athar
- Department of Dermatology and Skin Diseases Research Center, University of Alabama at Birmingham, Birmingham, AL, USA.
| |
Collapse
|
28
|
Li C, Srivastava RK, Athar M. Biological and environmental hazards associated with exposure to chemical warfare agents: arsenicals. Ann N Y Acad Sci 2016; 1378:143-157. [PMID: 27636894 DOI: 10.1111/nyas.13214] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Revised: 07/07/2016] [Accepted: 07/28/2016] [Indexed: 12/20/2022]
Abstract
Arsenicals are highly reactive inorganic and organic derivatives of arsenic. These chemicals are very toxic and produce both acute and chronic tissue damage. On the basis of these observations, and considering the low cost and simple methods of their bulk syntheses, these agents were thought to be appropriate for chemical warfare. Among these, the best-known agent that was synthesized and weaponized during World War I (WWI) is Lewisite. Exposure to Lewisite causes painful inflammatory and blistering responses in the skin, lung, and eye. These chemicals also manifest systemic tissue injury following their cutaneous exposure. Although largely discontinued after WWI, stockpiles are still known to exist in the former Soviet Union, Germany, Italy, the United States, and Asia. Thus, access by terrorists or accidental exposure could be highly dangerous for humans and the environment. This review summarizes studies that describe the biological, pathophysiological, toxicological, and environmental effects of exposure to arsenicals, with a major focus on cutaneous injury. Studies related to the development of novel molecular pathobiology-based antidotes against these agents are also described.
Collapse
Affiliation(s)
- Changzhao Li
- Department of Dermatology and Skin Diseases Research Center, University of Alabama at Birmingham, Birmingham, Alabama
| | - Ritesh K Srivastava
- Department of Dermatology and Skin Diseases Research Center, University of Alabama at Birmingham, Birmingham, Alabama
| | - Mohammad Athar
- Department of Dermatology and Skin Diseases Research Center, University of Alabama at Birmingham, Birmingham, Alabama.
| |
Collapse
|
29
|
Bacillus cereus strain S2 shows high nematicidal activity against Meloidogyne incognita by producing sphingosine. Sci Rep 2016; 6:28756. [PMID: 27338781 PMCID: PMC4919635 DOI: 10.1038/srep28756] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Accepted: 06/08/2016] [Indexed: 01/22/2023] Open
Abstract
Plant-parasitic nematodes cause serious crop losses worldwidely. This study intended to discover the antagonistic mechanism of Bacillus cereus strain S2 against Meloidogyne incognita. Treatment with B. cereus strain S2 resulted in a mortality of 77.89% to Caenorhabditis elegans (a model organism) and 90.96% to M. incognita. In pot experiment, control efficiency of B. cereus S2 culture or supernatants were 81.36% and 67.42% towards M. incognita, respectively. In field experiment, control efficiency was 58.97% towards M. incognita. Nematicidal substances were isolated from culture supernatant of B. cereus S2 by polarity gradient extraction, silica gel column chromatography and HPLC. Two nematicidal compounds were identified as C16 sphingosine and phytosphingosine by LC-MS. The median lethal concentration of sphingosine was determined as 0.64 μg/ml. Sphingosine could obviously inhibit reproduction of C. elegans, with an inhibition rate of 42.72% for 24 h. After treatment with sphingosine, ROS was induced in intestinal tract, and genital area disappeared in nematode. Furthermore, B. cereus S2 could induce systemic resistance in tomato, and enhance activity of defense-related enzymes for biocontrol of M. incognita. This study demonstrates the nematicidal activity of B. cereus and its product sphingosine, as well provides a possibility for biocontrol of M. incognita.
Collapse
|
30
|
Ola-Davies OE, Akinrinde AS. Acute Sodium Arsenite-Induced Hematological and Biochemical Changes in Wistar Rats: Protective Effects of Ethanol Extract of Ageratum conyzoides. Pharmacognosy Res 2016; 8:S26-30. [PMID: 27114688 PMCID: PMC4821103 DOI: 10.4103/0974-8490.178645] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Background: Ageratum conyzoides L. (Asteraceae) is an annual herbaceous plant used in folklore medicine for the treatment of a wide range of diseases. Objective: To investigate the protective effect of the ethanol leaf extract of A. conyzoides (EEAC) against hematological, serum biochemical and histological alterations induced by Sodium arsenite administration to Wistar rats. Materials and Methods: Twenty male Wistar rats were randomly assigned into four groups of five rats each. Group I received propylene glycol and Group II rats were given the (EEAC, 100 mg/kg b.w.) orally for 7 days. Group III were given a single oral dose of sodium arsenite (NaAsO2, 2.5 mg/kg b.w.). Animals in Group IV were pretreated with 100 mg/kg EEAC for 7 days followed by a single oral dose of sodium arsenite. Results: Arsenic exposure resulted in significant reductions (P < 0.05) in values of packed cell volume (PCV), hemoglobin concentration (Hb) and red blood cell (RBC) count, and elevation in total white blood cell (WBC) count with insignificant reductions in serum total protein, albumin, and globulin levels. Alterations in aspartate aminotransferase, alanine transferase, alkaline phosphatase, and gamma glutamyl transferase activities, as well as in serum levels of urea, creatinine, glucose, cholesterol, and triglyceride levels, were not statistically significant. EEAC significantly restored (P < 0.05) the PCV, Hb, RBC, and WBC as well as serum albumin, globulin, and total protein to normal values. Conclusion: The results of this study indicate that EEAC possess strong potentials to protect against toxicities induced by sodium arsenite. SUMMARY Ageratum conyzoides produced significant reversal of the reduction in the erythrocytic indices (packed cell volume, red blood cell, and Hb) caused by sodium arsenite Sodium arsenite-induced slight elevations in serum aspartate aminotransferase (AST), alanine transaminase (ALT), and alkaline phosphatase (ALP), correlating with the histopathological lesions observed Ageratum conyzoides produced only slight reductions in AST, ALT, and ALP compared to the sodium arsenite group, but significantly reduced the severity of histopathological lesions.
Abbreviations Used: EEAC: Ethanol extract of Ageratum conyzoides; RBC: Red blood cell; WBC: White blood cell; Hb: Hemoglobin; ALT: Alanine transaminase; AST: Aspartate transaminase or Aspartate aminotransferase; ALP: Alkaline phosphatase; GGT: Gamma glutamyl transferase.
Collapse
Affiliation(s)
- Olufunke Eunice Ola-Davies
- Department of Veterinary Physiology, Biochemistry and Pharmacology, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Oyo State, Nigeria
| | - Akinleye Stephen Akinrinde
- Department of Veterinary Physiology, Biochemistry and Pharmacology, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Oyo State, Nigeria
| |
Collapse
|
31
|
Yu H, Liu S, Li M, Wu B. Influence of diet, vitamin, tea, trace elements and exogenous antioxidants on arsenic metabolism and toxicity. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2016; 38:339-351. [PMID: 26169729 DOI: 10.1007/s10653-015-9742-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Accepted: 07/02/2015] [Indexed: 06/04/2023]
Abstract
Health risk of arsenic (As) has received increasing attention. Acute and chronic exposure to As could cause several detrimental effects on human health. As toxicity is closely related to its bioaccessibility and metabolism. In real environment, many factors, such as diet and nutrition, can influence As bioaccessibility, metabolism and toxicity. This paper mainly reviews the influences of diets and elements on As bioaccessibility, metabolism and toxicity and their underlying mechanisms to provide suggestions for future investigations. Vitamins, jaggery, fruit, tea, glutathione, N-acetylcysteine and zinc could reduce the As-induced toxicity by increasing antioxidative enzymes to antagonize oxidative stress caused by As and/or increasing As methylation. However, bean and betel nut could increase risk of skin lesions caused by As. Interestingly, high-fat diet, selenium and iron have incompatible effects on As bioaccessibility, metabolism and toxicity in different experimental conditions. Based on current literatures, the As methylation and As-induced oxidative damage might be two main ways that the diets and elements influence As toxicity. Combined application of in vitro human cell lines and gastrointestinal models might be useful tools to simultaneously characterize the changes in As bioaccessibility and toxicity in the future research.
Collapse
Affiliation(s)
- Haiyan Yu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, People's Republic of China
| | - Su Liu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, People's Republic of China
| | - Mei Li
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, People's Republic of China
| | - Bing Wu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, People's Republic of China.
| |
Collapse
|
32
|
Shim J, Kennedy RH, Weatherly LM, Hutchinson LM, Pelletier JH, Hashmi HN, Blais K, Velez A, Gosse JA. Arsenic inhibits mast cell degranulation via suppression of early tyrosine phosphorylation events. J Appl Toxicol 2016; 36:1446-59. [PMID: 27018130 DOI: 10.1002/jat.3300] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Revised: 12/18/2015] [Accepted: 01/05/2016] [Indexed: 12/22/2022]
Abstract
Exposure to arsenic is a global health concern. We previously documented an inhibitory effect of inorganic Arsenite on IgE-mediated degranulation of RBL-2H3 mast cells (Hutchinson et al., 2011; J. Appl. Toxicol. 31: 231-241). Mast cells are tissue-resident cells that are positioned at the host-environment interface, thereby serving vital roles in many physiological processes and disease states, in addition to their well-known roles in allergy and asthma. Upon activation, mast cells secrete several mediators from cytoplasmic granules, in degranulation. The present study is an investigation of Arsenite's molecular target(s) in the degranulation pathway. Here, we report that arsenic does not affect degranulation stimulated by either the Ca(2) (+) ionophore A23187 or thapsigargin, which both bypass early signaling events. Arsenic also does not alter degranulation initiated by another non-IgE-mediated mast cell stimulant, the G-protein activator compound 48/80. However, arsenic inhibits Ca(2) (+) influx into antigen-activated mast cells. These results indicate that the target of arsenic in the degranulation pathway is upstream of the Ca(2) (+) influx. Phospho-Syk and phospho-p85 phosphoinositide 3-kinase enzyme-linked immunosorbent assays data show that arsenic inhibits early phosphorylation events. Taken together, this evidence indicates that the mechanism underlying arsenic inhibition of mast cell degranulation occurs at the early tyrosine phosphorylation steps in the degranulation pathway. Copyright © 2016 John Wiley & Sons, Ltd.
Collapse
Affiliation(s)
- Juyoung Shim
- Department of Molecular and Biomedical Sciences, University of Maine, Orono, Maine, 04469, USA
| | - Rachel H Kennedy
- Department of Molecular and Biomedical Sciences, University of Maine, Orono, Maine, 04469, USA.,Graduate School of Biomedical Science and Engineering, University of Maine, Orono, Maine, 04469, USA
| | - Lisa M Weatherly
- Department of Molecular and Biomedical Sciences, University of Maine, Orono, Maine, 04469, USA.,Graduate School of Biomedical Science and Engineering, University of Maine, Orono, Maine, 04469, USA
| | - Lee M Hutchinson
- Department of Molecular and Biomedical Sciences, University of Maine, Orono, Maine, 04469, USA
| | - Jonathan H Pelletier
- Department of Molecular and Biomedical Sciences, University of Maine, Orono, Maine, 04469, USA
| | - Hina N Hashmi
- Department of Molecular and Biomedical Sciences, University of Maine, Orono, Maine, 04469, USA
| | - Kayla Blais
- Department of Molecular and Biomedical Sciences, University of Maine, Orono, Maine, 04469, USA
| | - Alejandro Velez
- Department of Molecular and Biomedical Sciences, University of Maine, Orono, Maine, 04469, USA
| | - Julie A Gosse
- Department of Molecular and Biomedical Sciences, University of Maine, Orono, Maine, 04469, USA. .,Graduate School of Biomedical Science and Engineering, University of Maine, Orono, Maine, 04469, USA.
| |
Collapse
|
33
|
Zhang R, Zhang X, Wu K, Wu H, Sun Q, Hu FB, Han J, Willett WC, Giovannucci EL. Rice consumption and cancer incidence in US men and women. Int J Cancer 2016; 138:555-64. [PMID: 26219234 PMCID: PMC4919813 DOI: 10.1002/ijc.29704] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 07/09/2015] [Accepted: 07/20/2015] [Indexed: 11/06/2022]
Abstract
While both the 2012 and 2014 Consumer Reports concerned arsenic levels in US rice, no previous study has evaluated long-term consumption of total rice, white rice and brown rice in relation to risk of developing cancers. We investigated this in the female Nurses' Health Study (1984-2010), and Nurses' Health Study II (1989-2009), and the male Health Professionals Follow-up Study (1986-2008), which included a total of 45,231 men and 160,408 women, free of cancer at baseline. Validated food frequency questionnaires were used to measure rice consumption at baseline and repeated almost every 4 years thereafter. We employed Cox proportional hazards regression model to estimate multivariable relative risks (RRs) and 95% confidence intervals (95% CIs). During up to 26 years of follow-up, we documented 31,655 incident cancer cases (10,833 in men and 20,822 in women). Age-adjusted results were similar to multivariable-adjusted results. Compared to participants with less than one serving per week, the multivariable RRs of overall cancer for individuals who ate at least five servings per week were 0.97 for total rice (95% CI: 0.85-1.07), 0.87 for white rice (95% CI: 0.75-1.01), and 1.17 for brown rice (95% CI: 0.90-1.26). Similar non-significant associations were observed for specific sites of cancers including prostate, breast, colon and rectum, melanoma, bladder, kidney, and lung. Additionally, the null associations were observed among European Americans and non-smokers, and were not modified by BMI. Long-term consumption of total rice, white rice or brown rice was not associated with risk of developing cancer in US men and women.
Collapse
Affiliation(s)
- Ran Zhang
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA
| | - Xuehong Zhang
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
| | - Kana Wu
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA
| | - Hongyu Wu
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA
| | - Qi Sun
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
| | - Frank B. Hu
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
| | - Jiali Han
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
- Department of Public Health, Indiana University School of Medicine, Indianapolis, IN
| | - Walter C. Willett
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
| | - Edward L. Giovannucci
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
| |
Collapse
|
34
|
Fukushima K, Huang H, Hamamura N. Cellular Response of Sinorhizobium sp. Strain A2 during Arsenite Oxidation. Microbes Environ 2015; 30:330-4. [PMID: 26477790 PMCID: PMC4676556 DOI: 10.1264/jsme2.me15096] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Arsenic (As) is a widely distributed toxic element in the environment and microorganisms have developed resistance mechanisms in order to tolerate it. The cellular response of the chemoorganotrophic arsenite (As[III])-oxidizing α-Proteobacteria, Sinorhizobium sp. strain A2, to arsenic was examined in the present study. Several proteins associated with arsenite oxidase and As resistance were shown to be accumulated in the presence of As(III). A shift in central carbon metabolism from the tricarboxylic acid pathway to glyoxylate pathway was also observed in response to oxidative stress. Our results revealed the strategy of the As(III)-oxidizing Sinorhizobium strain to mitigate arsenic toxicity and oxidative damage by multiple metabolic adaptations.
Collapse
Affiliation(s)
- Koh Fukushima
- Center for Marine Environmental Studies, Ehime University
| | | | | |
Collapse
|
35
|
Singh MK, Yadav SS, Yadav RS, Chauhan A, Katiyar D, Khattri S. Protective effect of Emblica-officinalis in arsenic induced biochemical alteration and inflammation in mice. SPRINGERPLUS 2015; 4:438. [PMID: 26312203 PMCID: PMC4545902 DOI: 10.1186/s40064-015-1227-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Accepted: 08/10/2015] [Indexed: 12/21/2022]
Abstract
Exposure to arsenic in individuals has been found to be associated with immune related problems. In earlier studies, we have demonstrated that amla protects against arsenic induced oxidative stress and apoptosis in thymus and spleen of mice. In continuation to that the present study has therefore been focused to investigate the
protective efficacy of amla in arsenic induced inflammation and immunotoxicity in mice. The results showed that arsenic treatment significantly increased serum urea levels (69 %), glucose levels (48 %) and triglyceride levels (66 %) as compared to controls. Mice exposed to arsenic exhibited significant increased in TNF-α (4.3-fold), serum Interleukin-1 beta (threefold), Interleukin-6 (3.8-fold) as compared to controls. Arsenic exposure increased the relative frequency of CD8+ (Tc) cells sub-population (18.9 %) and decreased CD4+ (Th) cells (2.6 %). Arsenic exposure also significantly decreased T (CD3) and B (CD19) cells (21.1 %) as compared to controls. Simultaneously treatment with arsenic and amla significantly inhibited serum urea levels (47 %), glucose levels (50 %) and triglyceride levels (14 %). It also significantly decreased the TNF-α (1.1-fold), levels of IL-1β (1.6-fold), levels of Interleukin-6 (1.3-fold) in serum as compared to those treated with arsenic alone. Simultaneously treatment with arsenic and amla restored the alterations in CD8+ and CD4+ cells and also recovered the damages in B and T sub cells population. Results of the present study clearly indicate that arsenic induced immunotoxicity linked with inflammation has been significantly protected through simultaneous treatment with arsenic and amla that was due to anti-inflammatory and antioxidant activity of amla.
Collapse
Affiliation(s)
- Manish K Singh
- Department of Pharmacology, King George Medical University, Lucknow, 226 003 UP India
| | - Suraj Singh Yadav
- Department of Pharmacology, King George Medical University, Lucknow, 226 003 UP India
| | - Rajesh Singh Yadav
- Department of Criminology and Forensic Science, School of Applied Sciences, Dr. Harisingh Gour Central University, Sagar, 470 003 MP India
| | - Abhishek Chauhan
- Department of Pharmacology, King George Medical University, Lucknow, 226 003 UP India
| | - Devendra Katiyar
- Department of Pharmacology, King George Medical University, Lucknow, 226 003 UP India
| | - Sanjay Khattri
- Department of Pharmacology, King George Medical University, Lucknow, 226 003 UP India
| |
Collapse
|
36
|
Ninomiya Y, Cui X, Yasuda T, Wang B, Yu D, Sekine-Suzuki E, Nenoi M. Arsenite induces premature senescence via p53/p21 pathway as a result of DNA damage in human malignant glioblastoma cells. BMB Rep 2015; 47:575-80. [PMID: 24499675 PMCID: PMC4261516 DOI: 10.5483/bmbrep.2014.47.10.254] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2013] [Indexed: 01/17/2023] Open
Abstract
In this study, we investigate whether arsenite-induced DNA damage leads to p53-dependent premature senescence using human glioblastoma cells with p53-wild type (U87MG-neo) and p53 deficient (U87MG-E6). A dose dependent relationship between arsenite and reduced cell growth is demonstrated, as well as induced γH2AX foci formation in both U87MG-neo and U87MG-E6 cells at low concentrations of arsenite. Senescence was induced by arsenite with senescence-associated β-galactosidase staining. Dimethyl- and trimethyl-lysine 9 of histone H3 (H3DMK9 and H3TMK9) foci formation was accompanied by p21 accumulation only in U87MG-neo but not in U87MG-E6 cells. This suggests that arsenite induces premature senescence as a result of DNA damage with heterochromatin forming through a p53/p21 dependent pathway. p21 and p53 siRNA consistently decreased H3TMK9 foci formation in U87M G-neo but not in U87MG-E6 cells after arsenite treatment. Taken together, arsenite reduces cell growth independently of p53 and induces premature senescence via p53/p21-dependent pathway following DNA damage. [BMB Reports 2014; 47(10): 575-580]
Collapse
Affiliation(s)
- Yasuharu Ninomiya
- Radiation Risk Reduction Research Program, Research Center for Radiation Protection, National Institute of Radiological Sciences, Chiba 263-8555, Japan
| | - Xing Cui
- Medical Physics Research Program, Research Center for Charged Particle Therapy, National Institute of Radiological Sciences, Chiba 263-8555, Japan
| | - Takeshi Yasuda
- Radiation Emergency Medicine Research Program, Research Center for Radiation Emergency Medicine, National Institute of Radiological Sciences, Chiba 263-8555, Japan
| | - Bing Wang
- Radiation Risk Reduction Research Program, Research Center for Radiation Protection, National Institute of Radiological Sciences, Chiba 263-8555, Japan
| | - Dong Yu
- School of Radiological Medicine and Protection, Medical College of Soochow University, 199 Ren Ai Rd, Suzhou Industrial Park, Suzhou 215123, China
| | - Emiko Sekine-Suzuki
- Research Program for Application of Heavy ions and Medical Science, Research Center for Charged Particle Therapy, National Institute of Radiological Sciences, Chiba 263-8555, Japan
| | - Mitsuru Nenoi
- Radiation Risk Reduction Research Program, Research Center for Radiation Protection, National Institute of Radiological Sciences, Chiba 263-8555, Japan
| |
Collapse
|
37
|
Chilakapati J, Wallace K, Hernandez-Zavala A, Moore T, Ren H, Kitchin KT. Pharmacokinetic and Genomic Effects of Arsenite in Drinking Water on Mouse Lung in a 30-Day Exposure. Dose Response 2015; 13:1559325815592392. [PMID: 26674514 PMCID: PMC4674186 DOI: 10.1177/1559325815592392] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
The 2 objectives of this subchronic study were to determine the arsenite drinking water exposure dependent increases in female C3H mouse liver and lung tissue arsenicals and to characterize the dose response (to 0, 0.05, 0.25, 1, 10, and 85 ppm arsenite in drinking water for 30 days and a purified AIN-93M diet) for genomic mouse lung expression patterns. Mouse lungs were analyzed for inorganic arsenic, monomethylated, and dimethylated arsenicals by hydride generation atomic absorption spectroscopy. The total lung mean arsenical levels were 1.4, 22.5, 30.1, 50.9, 105.3, and 316.4 ng/g lung tissue after 0, 0.05, 0.25, 1, 10, and 85 ppm, respectively. At 85 ppm, the total mean lung arsenical levels increased 14-fold and 131-fold when compared to either the lowest noncontrol dose (0.05 ppm) or the control dose, respectively. We found that arsenic exposure elicited minimal numbers of differentially expressed genes (DEGs; 77, 38, 90, 87, and 87 DEGs) after 0.05, 0.25, 1, 10, and 85 ppm, respectively, which were associated with cardiovascular disease, development, differentiation, apoptosis, proliferation, and stress response. After 30 days of arsenite exposure, this study showed monotonic increases in mouse lung arsenical (total arsenic and dimethylarsinic acid) concentrations but no clear dose-related increases in DEG numbers.
Collapse
Affiliation(s)
| | - Kathleen Wallace
- Integrated Systems Toxicology Division, National Health and Environmental Effects Research Laboratory, US Environmental Protection Agency, Durham, NC, USA
| | - Araceli Hernandez-Zavala
- Sección de Investigación y Posgrado, Escuela Superior de Medicina del Instituto Politécnico Nacional, Mexico City, Mexico
| | - Tanya Moore
- Integrated Systems Toxicology Division, National Health and Environmental Effects Research Laboratory, US Environmental Protection Agency, Durham, NC, USA
| | - Hongzu Ren
- Integrated Systems Toxicology Division, National Health and Environmental Effects Research Laboratory, US Environmental Protection Agency, Durham, NC, USA
| | - Kirk T. Kitchin
- Integrated Systems Toxicology Division, National Health and Environmental Effects Research Laboratory, US Environmental Protection Agency, Durham, NC, USA
| |
Collapse
|
38
|
Urrialde V, Prieto D, Pla J, Alonso-Monge R. The Pho4 transcription factor mediates the response to arsenate and arsenite in Candida albicans. Front Microbiol 2015; 6:118. [PMID: 25717325 PMCID: PMC4324303 DOI: 10.3389/fmicb.2015.00118] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Accepted: 01/29/2015] [Indexed: 11/21/2022] Open
Abstract
Arsenate (As (V)) is the dominant form of the toxic metalloid arsenic (As). Microorganisms have consequently developed mechanisms to detoxify and tolerate this kind of compounds. In the present work, we have explored the arsenate sensing and signaling mechanisms in the pathogenic fungus Candida albicans. Although mutants impaired in the Hog1 or Mkc1-mediated pathways did not show significant sensitivity to this compound, both Hog1 and Mkc1 became phosphorylated upon addition of sodium arsenate to growing cells. Hog1 phosphorylation upon arsenate challenge was shown to be Ssk1-dependent. A screening designed for the identification of transcription factors involved in the arsenate response identified Pho4, a transcription factor of the myc-family, as pho4 mutants were susceptible to As (V). The expression of PHO4 was shortly induced in the presence of sodium arsenate in a Hog1-independent manner. Pho4 level affects Hog1 phosphorylation upon As (V) challenge, suggesting an indirect relationship between Pho4 activity and signaling in C. albicans. Pho4 also mediates the response to arsenite as revealed by the fact that pho4 defective mutants are sensitive to arsenite and Pho4 becomes phosphorylated upon sodium arsenite addition. Arsenite also triggers Hog1 phosphorylation by a process that is, in this case, independent of the Ssk1 kinase. These results indicate that the HOG pathway mediates the response to arsenate and arsenite in C. albicans and that the Pho4 transcription factor can differentiate among As (III), As (V) and Pi, triggering presumably specific responses.
Collapse
Affiliation(s)
- Verónica Urrialde
- Departamento de Microbiología II, Facultad de Farmacia, Universidad Complutense de Madrid Madrid, Spain
| | - Daniel Prieto
- Departamento de Microbiología II, Facultad de Farmacia, Universidad Complutense de Madrid Madrid, Spain
| | - Jesús Pla
- Departamento de Microbiología II, Facultad de Farmacia, Universidad Complutense de Madrid Madrid, Spain
| | - Rebeca Alonso-Monge
- Departamento de Microbiología II, Facultad de Farmacia, Universidad Complutense de Madrid Madrid, Spain
| |
Collapse
|
39
|
Qu W, Waalkes MP. Metallothionein blocks oxidative DNA damage induced by acute inorganic arsenic exposure. Toxicol Appl Pharmacol 2015; 282:267-74. [PMID: 25485709 PMCID: PMC4315697 DOI: 10.1016/j.taap.2014.11.014] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Revised: 11/19/2014] [Accepted: 11/25/2014] [Indexed: 11/19/2022]
Abstract
We studied how protein metallothionein (MT) impacts arsenic-induced oxidative DNA damage (ODD) using cells that poorly express MT (MT-I/II double knockout embryonic cells; called MT-null cells) and wild-type (WT) MT competent cells. Arsenic (as NaAsO2) was less cytolethal over 24h in WT cells (LC50=11.0±1.3μM; mean±SEM) than in MT-null cells (LC50=5.6±1.2μM). ODD was measured by the immuno-spin trapping method. Arsenic (1 or 5μM; 24h) induced much less ODD in WT cells (121% and 141% of control, respectively) than in MT-null cells (202% and 260%). In WT cells arsenic caused concentration-dependent increases in MT expression (transcript and protein), and in the metal-responsive transcription factor-1 (MTF-1), which is required to induce the MT gene. In contrast, basal MT levels were not detectable in MT-null cells and unaltered by arsenic exposure. Transfection of MT-I gene into the MT-null cells markedly reduced arsenic-induced ODD levels. The transport genes, Abcc1 and Abcc2 were increased by arsenic in WT cells but either showed no or very limited increases in MT-null cells. Arsenic caused increases in oxidant stress defense genes HO-1 and GSTα2 in both WT and MT-null cells, but to much higher levels in WT cells. WT cells appear more adept at activating metal transport systems and oxidant response genes, although the role of MT in these responses is unclear. Overall, MT protects against arsenic-induced ODD in MT competent cells by potential sequestration of scavenging oxidant radicals and/or arsenic.
Collapse
Affiliation(s)
- Wei Qu
- National Toxicology Program Laboratory, Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA.
| | - Michael P Waalkes
- National Toxicology Program Laboratory, Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA
| |
Collapse
|
40
|
Zhang Z, Pratheeshkumar P, Budhraja A, Son YO, Kim D, Shi X. Role of reactive oxygen species in arsenic-induced transformation of human lung bronchial epithelial (BEAS-2B) cells. Biochem Biophys Res Commun 2014; 456:643-8. [PMID: 25499816 DOI: 10.1016/j.bbrc.2014.12.010] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Accepted: 12/04/2014] [Indexed: 11/27/2022]
Abstract
Arsenic is an environmental carcinogen, its mechanisms of carcinogenesis remain to be investigated. Reactive oxygen species (ROS) are considered to be important. A previous study (Carpenter et al., 2011) has measured ROS level in human lung bronchial epithelial (BEAS-2B) cells and arsenic-transformed BEAS-2B cells and found that ROS levels were higher in transformed cells than that in parent normal cells. Based on these observations, the authors concluded that cell transformation induced by arsenic is mediated by increased cellular levels of ROS. This conclusion is problematic because this study only measured the basal ROS levels in transformed and parent cells and did not investigate the role of ROS in the process of arsenic-induced cell transformation. The levels of ROS in arsenic-transformed cells represent the result and not the cause of cell transformation. Thus question concerning whether ROS are important in arsenic-induced cell transformation remains to be answered. In the present study, we used expressions of catalase (antioxidant against H2O2) and superoxide dismutase 2 (SOD2, antioxidant against O2(-)) to decrease ROS level and investigated their role in the process of arsenic-induced cell transformation. Our results show that inhibition of ROS by antioxidant enzymes decreased arsenic-induced cell transformation, demonstrating that ROS are important in this process. We have also shown that in arsenic-transformed cells, ROS generation was lower and levels of antioxidants are higher than those in parent cells, in a disagreement with the previous report. The present study has also shown that the arsenic-transformed cells acquired apoptosis resistance. The inhibition of catalase to increase ROS level restored apoptosis capability of arsenic-transformed BEAS-2B cells, further showing that ROS levels are low in these cells. The apoptosis resistance due to the low ROS levels may increase cells proliferation, providing a favorable environment for tumorigenesis of arsenic-transformed cells.
Collapse
Affiliation(s)
- Zhuo Zhang
- Graduate Center for Toxicology, University of Kentucky, Lexington, KY 40536, USA.
| | - Poyil Pratheeshkumar
- Center for Research on Environmental Diseases, University of Kentucky, Lexington, KY 40536, USA
| | - Amit Budhraja
- Center for Research on Environmental Diseases, University of Kentucky, Lexington, KY 40536, USA
| | - Young-Ok Son
- Center for Research on Environmental Diseases, University of Kentucky, Lexington, KY 40536, USA
| | - Donghern Kim
- Graduate Center for Toxicology, University of Kentucky, Lexington, KY 40536, USA
| | - Xianglin Shi
- Center for Research on Environmental Diseases, University of Kentucky, Lexington, KY 40536, USA
| |
Collapse
|
41
|
Hunt KM, Srivastava RK, Elmets CA, Athar M. The mechanistic basis of arsenicosis: pathogenesis of skin cancer. Cancer Lett 2014; 354:211-9. [PMID: 25173797 PMCID: PMC4193806 DOI: 10.1016/j.canlet.2014.08.016] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Revised: 08/12/2014] [Accepted: 08/12/2014] [Indexed: 12/25/2022]
Abstract
Significant amounts of arsenic have been found in the groundwater of many countries including Argentina, Bangladesh, Chile, China, India, Mexico, and the United States with an estimated 200 million people at risk of toxic exposure. Although chronic arsenic poisoning damages many organ systems, it usually first presents in the skin with manifestations including hyperpigmentation, hyperkeratoses, Bowen's disease, squamous cell carcinoma, and basal cell carcinoma. Arsenic promotes oxidative stress by upregulating nicotinamide adenine dinucleotide phosphate oxidase, uncoupling nitric oxide synthase, and by depleting natural antioxidants such as nitric oxide and glutathione in addition to targeting other proteins responsible for the maintenance of redox homeostasis. It causes immune dysfunction and tissue inflammatory responses, which may involve activation of the unfolded protein response signaling pathway. In addition, the dysregulation of other molecular targets such as nuclear factor kappa B, Hippo signaling protein Yap, and the mineral dust-induced proto-oncogene may orchestrate the pathogenesis of arsenic-mediated health effects. The metalloid decreases expression of tumor suppressor molecules and increases expression of pro-inflammatory mitogen-activated protein kinase pathways leading to a tumor-promoting tissue microenvironment. Cooperation of upregulated signal transduction molecules with DNA damage may abrogate apoptosis, promote proliferation, and enhance cell survival. Genomic instability via direct DNA damage and weakening of several cellular DNA repair mechanisms could also be important cancer development mechanisms in arsenic-exposed populations. Thus, arsenic mediates its toxicity by generating oxidative stress, causing immune dysfunction, promoting genotoxicity, hampering DNA repair, and disrupting signal transduction, which may explain the complex disease manifestations seen in arsenicosis.
Collapse
Affiliation(s)
- Katherine M Hunt
- University of Alabama at Birmingham, University of Alabama School of Medicine, 1670 University Blvd., Birmingham, Alabama 35233, USA
| | - Ritesh K Srivastava
- Department of Dermatology and Skin Disease Research Center, University of Alabama at Birmingham, VH 509, 1530 3rd Ave. S., Birmingham, Alabama 35294, USA
| | - Craig A Elmets
- Department of Dermatology and Skin Disease Research Center, University of Alabama at Birmingham, VH 509, 1530 3rd Ave. S., Birmingham, Alabama 35294, USA
| | - Mohammad Athar
- Department of Dermatology and Skin Disease Research Center, University of Alabama at Birmingham, VH 509, 1530 3rd Ave. S., Birmingham, Alabama 35294, USA.
| |
Collapse
|
42
|
Sheikh A, Yeasmin F, Agarwal S, Rahman M, Islam K, Hossain E, Hossain S, Karim MR, Nikkon F, Saud ZA, Hossain K. Protective effects of Moringa oleifera Lam. leaves against arsenic-induced toxicity in mice. Asian Pac J Trop Biomed 2014; 4:S353-8. [PMID: 25183111 DOI: 10.12980/apjtb.4.201414b44] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Accepted: 03/08/2014] [Indexed: 10/25/2022] Open
Abstract
OBJECTIVE To evaluate the protective role of leaves of Moringa oleifera (M. oleifera) Lam. against arsenic-induced toxicity in mice. METHODS Swiss albino male mice were divided into four groups. The first group was used as non-treated control group while, the second, third, and fourth groups were treated with M. oleifera leaves (50 mg/kg body weight per day), sodium arsenite (10 mg/kg body weight per day) and sodium arsenite plus M. oleifera leaves, respectively. Serum indices related to cardiac, liver and renal functions were analyzed to evaluate the protective effect of Moringa leaves on arsenic-induced effects in mice. RESULTS It revealed that food supplementation of M. oleifera leaves abrogated the arsenic-induced elevation of triglyceride, glucose, urea and the activities of alkaline phospatase, aspartate aminotransferase and alanine aminotransferase in serum. M. oleifera leaves also prevented the arsenic-induced perturbation of serum butyryl cholinesterase activity, total cholesterol and high density lipoprotein cholesterol. CONCLUSIONS The results indicate that the leaves of M. oleifera may be useful in reducing the effects of arsenic-induced toxicity.
Collapse
Affiliation(s)
- Afzal Sheikh
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi-6205, Bangladesh
| | - Fouzia Yeasmin
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi-6205, Bangladesh
| | - Smita Agarwal
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi-6205, Bangladesh
| | - Mashiur Rahman
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi-6205, Bangladesh
| | - Khairul Islam
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi-6205, Bangladesh
| | - Ekhtear Hossain
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi-6205, Bangladesh
| | - Shakhawoat Hossain
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi-6205, Bangladesh
| | - Md Rezaul Karim
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi-6205, Bangladesh
| | - Farjana Nikkon
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi-6205, Bangladesh
| | - Zahangir Alam Saud
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi-6205, Bangladesh
| | - Khaled Hossain
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi-6205, Bangladesh
| |
Collapse
|
43
|
Oxidative stress induced by the chemotherapeutic agent arsenic trioxide. 3 Biotech 2014; 4:425-430. [PMID: 28324479 PMCID: PMC4145621 DOI: 10.1007/s13205-013-0170-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Accepted: 08/27/2013] [Indexed: 01/24/2023] Open
Abstract
Arsenic compounds have been used for medicinal purposes throughout history. Arsenic trioxide (As2O3) achieved dramatic remissions in patients with acute promyelocytic leukaemia. Unfortunately, the clinical usefulness of As2O3 has been limited by its toxicity. The present study was designed to investigate the toxic effects of As2O3 at its clinical concentrations. Experimental rats were administered with As2O3 2, 4 and 8 mg/kg body weight for a period of 45 days and the serum glucose, creatine kinase, lactate dehydrogenase, lipid peroxidation and antioxidant status were measured. As2O3-treated rats showed elevated serum glucose, creatine kinase and lactate dehydrogenase concentrations. Lipid peroxidation product malondialdehyde was found to be produced more in arsenic-treated rats. Reduced glutathione and glutathione-dependant antioxidant enzymes, glutathione-S-transferase and glutathione peroxidase, and the antiperoxidative enzymes, superoxide dismutase and catalase, concentrations were reduced with the As2O3 treatment. All these toxic effects were found increased with the increase in concentration of As2O3. The results of the study indicate that As2O3 produced dose-dependant toxic side effects at its clinical concentrations.
Collapse
|
44
|
Resveratrol, a natural antioxidant, has a protective effect on liver injury induced by inorganic arsenic exposure. BIOMED RESEARCH INTERNATIONAL 2014; 2014:617202. [PMID: 25147808 PMCID: PMC4132329 DOI: 10.1155/2014/617202] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 07/05/2014] [Accepted: 07/07/2014] [Indexed: 12/29/2022]
Abstract
Resveratrol (Rev) can ameliorate cytotoxic chemotherapy-induced toxicity and oxidative stress. Arsenic trioxide (As2O3) is a known cytotoxic environmental toxicant and a potent chemotherapeutic agent. However, the mechanisms by which resveratrol protects the liver against the cytotoxic effects of As2O3 are not known. Therefore, in the present study we investigated the mechanisms involved in the action of resveratrol using a cat model in which hepatotoxicity was induced by means of As2O3 treatment. We found that pretreatment with resveratrol, administered using a clinically comparable dose regimen, reversed changes in As2O3-induced morphological and liver parameters and resulted in a significant improvement in hepatic function. Resveratrol treatment also improved the activities of antioxidant enzymes and attenuated As2O3-induced increases in reactive oxygen species and malondialdehyde production. In addition, resveratrol attenuated the As2O3-induced reduction in the ratio of reduced glutathione to oxidized glutathione and the retention of arsenic in liver tissue. These findings provide a better understanding of the mechanisms whereby resveratrol modulates As2O3-induced changes in liver function and tissue morphology. They also provide a stronger rationale for the clinical utilization of resveratrol for the reduction of As2O3-induced hepatotoxicity.
Collapse
|
45
|
Das TK, Mani V, Kaur H, Kewalramani N, Agarwal A. Effect of Vitamin E Supplementation on Hematological and Plasma Biochemical Parameters during Long Term Exposure of Arsenic in Goats. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2014; 25:1262-8. [PMID: 25049689 PMCID: PMC4092933 DOI: 10.5713/ajas.2012.12043] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2012] [Revised: 03/30/2012] [Accepted: 03/23/2012] [Indexed: 11/27/2022]
Abstract
The present investigation was designed to determine whether supplementation of different level of vitamin E for 12 months to arsenic exposed goats (50 ppm as sodium arsenite) affords protection against the blood hemato-biochemical parameters caused by the metalloid. A total of 24 crossbred (Alpine×Beetal) lactating goats were assigned randomly into 4 equal groups (control, T1, T2 and T3) of 6 in each, on the basis of average body weight (36.10±0.11 kg) and milk yield (1.61±0.04 kg/d). The animals in T1, T2 and T3 were given 50 ppm arsenic, while in T2 and T3, additionally; vitamin E at the rate of 100 IU and 150 IU/kg dry matter (DM) respectively was additionally supplemented for the period of 12 months. Hemoglobin (Hb), total leukocyte (TLC) and blood lymphocyte % were decreased (p<0.05) in arsenic fed groups and vitamin E supplementation in the experimental group showed a protective potential. Significant increases (p<0.05) in aspertate transaminase (AST) and alanine transaminase (ALT) activities among arsenic supplemented groups were recorded, however vitamin E supplementation at higher doses showed a protective effect (p<0.05) against AST but in the case of ALT no ameliorating effect was found in either of the doses. Plasma total protein was decreased (p>0.05) but creatinine level was periodically increased in all As supplemented groups and vitamin E supplementation did not produce any protective effect. It can be concluded that arsenic exposure resulted in varying degree of changes in hemato-biochemical parameters and activities of antioxidant enzymes in goats but concomitant treatment with Vitamin E is partially helpful in reducing the burden of arsenic induced effect.
Collapse
|
46
|
Zhong L, Wang Y, Li W, Gu J, Li X, Wang X, Yue Z, Mu Y, Bai J, Li R, Zhang H. Heme oxygenase-1 silencing increases the sensitivity of human osteosarcoma MG63 cells to arsenic trioxide. Mol Cell Biochem 2014; 392:135-44. [PMID: 24676542 DOI: 10.1007/s11010-014-2027-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Accepted: 03/06/2014] [Indexed: 01/19/2023]
Abstract
Arsenic trioxide (ATO) has been successfully used to treat leukemia and some solid malignant tumors. Our previous study regarding the effects of ATO on mesenchymal-derived human osteosarcoma MG63 cells showed that heme oxygenase-1 (HO-1) was strongly induced upon treatment with ATO. The present study sought to investigate the effect of silencing HO-1 on the sensitivity of osteosarcoma cells to ATO to determine the potential for therapeutic applications. Small hairpin RNA (shRNA)-mediated interference was used to silence HO-1 in MG63 cells. Viability, apoptosis, and intracellular reactive oxygen species (ROS) of the cells were assessed to evaluate the sensitivity of the cells to ATO as well as the potential mechanisms responsible. shRNA-mediated interference prevented the induction of HO-1, increased cell death, and increased intracellular ROS levels in MG63 cells upon treatment with ATO. Silencing HO-1 increased the susceptibility of MG63 cells to the chemotherapeutic drug ATO by enhancing intracellular accumulation of ROS. Our results suggest that the inhibition of HO-1 could improve the outcome of osteosarcoma treated with ATO.
Collapse
Affiliation(s)
- Lingzhi Zhong
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, Changchun, 130021, People's Republic of China
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
47
|
Ivanov VN, Wen G, Hei TK. Sodium arsenite exposure inhibits AKT and Stat3 activation, suppresses self-renewal and induces apoptotic death of embryonic stem cells. Apoptosis 2013; 18:188-200. [PMID: 23143138 DOI: 10.1007/s10495-012-0779-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Sodium arsenite exposure at concentration >5 μM may induce embryotoxic and teratogenic effects in animal models. Long-term health effects of sodium arsenite from contaminated drinking water may result in different forms of cancer and neurological abnormalities. As cancer development processes seem to be originated in stem cells, we have chosen to examine the effects of sodium arsenite on signaling pathways and the corresponding transcription factors that regulate cell viability and self-renewal in mouse embryonic stem cells (ESC) and mouse neural stem/precursor cells. We demonstrated that the crucial signaling pathway, which was substantially suppressed by sodium arsenite exposure (4 μM) in ESC, was the PI3K-AKT pathway linked with numerous downstream targets that control cell survival and apoptosis. Furthermore, the whole core transcription factor circuitry that control self-renewal of mouse ESC (Stat3-P-Tyr705, Oct4, Sox2 and Nanog) was strongly down-regulated by sodium arsenite (4 μM) exposure. This was followed by G2/M arrest and induction of the mitochondrial apoptotic pathway that might be suppressed by caspase-9 and caspase-3 inhibitors. In contrast to mouse ESC with very low endogenous IL6, mouse neural stem/precursor cells (C17.2 clone immortalized by v-myc) with high endogenous production of IL6 exhibited a strong resistance to cytotoxic effects of sodium arsenite that could be decreased by inhibitory anti-IL6 antibody or Stat3 inhibition. In summary, our data demonstrated suppression of self-renewal and induction of apoptosis in mouse ESC by sodium arsenite exposure, which was further accelerated due to simultaneous inhibition of the protective PI3K-AKT and Stat3-dependent pathways.
Collapse
Affiliation(s)
- Vladimir N Ivanov
- Department of Radiation Oncology, Center for Radiological Research, College of Physicians and Surgeons, Columbia University, 630 West 168th Street, New York, NY 10032, USA.
| | | | | |
Collapse
|
48
|
Sahu SN, Lewis J, Patel I, Bozdag S, Lee JH, Sprando R, Cinar HN. Genomic analysis of stress response against arsenic in Caenorhabditis elegans. PLoS One 2013; 8:e66431. [PMID: 23894281 PMCID: PMC3722197 DOI: 10.1371/journal.pone.0066431] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2012] [Accepted: 05/08/2013] [Indexed: 11/25/2022] Open
Abstract
Arsenic, a known human carcinogen, is widely distributed around the world and found in particularly high concentrations in certain regions including Southwestern US, Eastern Europe, India, China, Taiwan and Mexico. Chronic arsenic poisoning affects millions of people worldwide and is associated with increased risk of many diseases including arthrosclerosis, diabetes and cancer. In this study, we explored genome level global responses to high and low levels of arsenic exposure in Caenorhabditis elegans using Affymetrix expression microarrays. This experimental design allows us to do microarray analysis of dose-response relationships of global gene expression patterns. High dose (0.03%) exposure caused stronger global gene expression changes in comparison with low dose (0.003%) exposure, suggesting a positive dose-response correlation. Biological processes such as oxidative stress, and iron metabolism, which were previously reported to be involved in arsenic toxicity studies using cultured cells, experimental animals, and humans, were found to be affected in C. elegans. We performed genome-wide gene expression comparisons between our microarray data and publicly available C. elegans microarray datasets of cadmium, and sediment exposure samples of German rivers Rhine and Elbe. Bioinformatics analysis of arsenic-responsive regulatory networks were done using FastMEDUSA program. FastMEDUSA analysis identified cancer-related genes, particularly genes associated with leukemia, such as dnj-11, which encodes a protein orthologous to the mammalian ZRF1/MIDA1/MPP11/DNAJC2 family of ribosome-associated molecular chaperones. We analyzed the protective functions of several of the identified genes using RNAi. Our study indicates that C. elegans could be a substitute model to study the mechanism of metal toxicity using high-throughput expression data and bioinformatics tools such as FastMEDUSA.
Collapse
Affiliation(s)
- Surasri N. Sahu
- Division of Virulence Assessment, Food and Drug Administration, Laurel, Maryland, United States of America
- Oak Ridge Institute for Science and Education, Oak Ridge, Tennessee, United States of America
| | - Jada Lewis
- Division of Molecular Biology, Food and Drug Administration, Laurel, Maryland, United States of America
| | - Isha Patel
- Division of Molecular Biology, Food and Drug Administration, Laurel, Maryland, United States of America
| | - Serdar Bozdag
- Department of Mathematics, Statistics, and Computer Science, Marquette University, Milwaukee, Wisconsin, United States of America
| | - Jeong H. Lee
- Division of Virulence Assessment, Food and Drug Administration, Laurel, Maryland, United States of America
- Kyungpook National University (KNU), Daegu, South Korea
| | - Robert Sprando
- Division of Toxicology, Food and Drug Administration, Laurel, Maryland, United States of America
- * E-mail: (RS); (HNC)
| | - Hediye Nese Cinar
- Division of Virulence Assessment, Food and Drug Administration, Laurel, Maryland, United States of America
- * E-mail: (RS); (HNC)
| |
Collapse
|
49
|
Jain R, Adhikary H, Jha S, Jha A, Kumar GN. Remodulation of central carbon metabolic pathway in response to arsenite exposure in Rhodococcus sp. strain NAU-1. Microb Biotechnol 2013; 5:764-72. [PMID: 23062201 PMCID: PMC3815897 DOI: 10.1111/j.1751-7915.2012.00368.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Arsenite‐tolerant bacteria were isolated from an organic farm of Navsari Agricultural University (NAU), Gujarat, India (Latitude: 20°55′39.04″N; Longitude: 72°54′6.34″E). One of the isolates, NAU‐1 (aerobic, Gram‐positive, non‐motile, coccobacilli), was hyper‐tolerant to arsenite (AsIII, 23 mM) and arsenate (AsV, 180 mM). 16S rRNA gene of NAU‐1 was 99% similar to the 16S rRNA genes of Rhodococcus (Accession No. HQ659188). Assays confirmed the presence of membrane bound arsenite oxidase and cytoplasmic arsenate reductase in NAU‐1. Genes for arsenite transporters (arsB and ACR3(1)) and arsenite oxidase gene (aoxB) were confirmed by PCR. Arsenite oxidation and arsenite efflux genes help the bacteria to tolerate arsenite. Specific activities of antioxidant enzymes (catalase, ascorbate peroxidase, superoxide dismutase and glutathione S‐transferase) increased in dose‐dependent manner with arsenite, whereas glutathione reductase activity decreased with increase in AsIII concentration. Metabolic studies revealed that Rhodococcus NAU‐1 produces excess of gluconic and succinic acids, and also activities of glucose dehydrogenase, phosphoenol pyruvate carboxylase and isocitrate lyase were increased, to cope with the inhibited activities of glucose‐6‐phosphate dehydrogenase, pyruvate dehydrogenase and α‐ketoglutarate dehydrogenase enzymes respectively, in the presence of AsIII. Enzyme assays revealed the increase in direct oxidative and glyoxylate pathway in Rhodococcus NAU‐1 in the presence of AsIII.
Collapse
Affiliation(s)
- Raina Jain
- Department of Biotechnology, ASPEE College of Horticulture and Forestry, Navsari Agricultural University, Navsari, Gujarat 396456, India
| | | | | | | | | |
Collapse
|
50
|
Ivanov VN, Hei TK. Induction of apoptotic death and retardation of neuronal differentiation of human neural stem cells by sodium arsenite treatment. Exp Cell Res 2013; 319:875-87. [PMID: 23219847 PMCID: PMC3593966 DOI: 10.1016/j.yexcr.2012.11.019] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2012] [Revised: 11/26/2012] [Accepted: 11/27/2012] [Indexed: 12/21/2022]
Abstract
Chronic arsenic toxicity is a global health problem that affects more than 100 million people worldwide. Long-term health effects of inorganic sodium arsenite in drinking water may result in skin, lung and liver cancers and in severe neurological abnormalities. We investigated in the present study whether sodium arsenite affects signaling pathways that control cell survival, proliferation and neuronal differentiation of human neural stem cells (NSC). We demonstrated that the critical signaling pathway, which was suppressed by sodium arsenite in NSC, was the protective PI3K-AKT pathway. Sodium arsenite (2-4μM) also caused down-regulation of Nanog, one of the key transcription factors that control pluripotency and self-renewal of stem cells. Mitochondrial damage and cytochrome-c release induced by sodium arsenite exposure was followed by initiation of the mitochondrial apoptotic pathway in NSC. Beside caspase-9 and caspase-3 inhibitors, suppression of JNK activity decreased levels of arsenite-induced apoptosis in NSC. Neuronal differentiation of NSC was substantially inhibited by sodium arsenite exposure. Overactivation of JNK1 and ERK1/2 and down-regulation of PI3K-AKT activity induced by sodium arsenite were critical factors that strongly affected neuronal differentiation. In conclusion, sodium arsenite exposure of human NSC induces the mitochondrial apoptotic pathway, which is substantially accelerated due to the simultaneous suppression of PI3K-AKT. Sodium arsenite also negatively affects neuronal differentiation of NSC through overactivation of MEK-ERK and suppression of PI3K-AKT.
Collapse
Affiliation(s)
- Vladimir N Ivanov
- Center for Radiological Research, Department of Radiation Oncology, College of Physicians and Surgeons, Columbia University, 630 West 168th Street, NY 10032, USA.
| | | |
Collapse
|