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Montero-Montoya R, Suárez-Larios K, Serrano-García L. Paraoxon and glyphosate induce DNA double-strand breaks but are not type II topoisomerase poisons. MUTATION RESEARCH. GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2023; 890:503657. [PMID: 37567644 DOI: 10.1016/j.mrgentox.2023.503657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 07/04/2023] [Accepted: 07/05/2023] [Indexed: 08/13/2023]
Abstract
We tested the hypothesis that the pesticides paraoxon and glyphosate cause DNA double-strand breaks (DSB) by poisoning the enzyme Type II topoisomerase (topo II). Peripheral lymphocytes in G0 phase, treated with the pesticides, plus or minus ICRF-187, an inhibitor of Topo II, were stimulated to proliferate; induced cytogenetic damage was measured. Micronuclei, chromatin buds, nucleoplasmic bridges, and extranuclear fragments were induced by treatments with the pesticides, irrespective of the pre-treatment with ICRF-187. These results indicate that the pesticides do not act as topo II poisons. The induction of DSB may occur by other mechanisms, such as effects on other proteins involved in recombination repair.
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Affiliation(s)
- Regina Montero-Montoya
- Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Apartado Postal 70228, 04510 Ciudad de México, Mexico.
| | - Karen Suárez-Larios
- Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Apartado Postal 70228, 04510 Ciudad de México, Mexico
| | - Luis Serrano-García
- Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Apartado Postal 70228, 04510 Ciudad de México, Mexico
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Cavalier H, Trasande L, Porta M. Exposures to pesticides and risk of cancer: Evaluation of recent epidemiological evidence in humans and paths forward. Int J Cancer 2023; 152:879-912. [PMID: 36134639 PMCID: PMC9880902 DOI: 10.1002/ijc.34300] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 09/05/2022] [Accepted: 09/12/2022] [Indexed: 02/02/2023]
Abstract
Knowledge of the role in cancer etiology of environmental exposures as pesticides is a prerequisite for primary prevention. We review 63 epidemiological studies on exposure to pesticides and cancer risk in humans published from 2017 to 2021, with emphasis on new findings, methodological approaches, and gaps in the existing literature. While much of the recent evidence suggests causal relationships between pesticide exposure and cancer, the strongest evidence exists for acute myeloid leukemia (AML) and colorectal cancer (CRC), diseases in which the observed associations were consistent across several studies, including high-quality prospective studies and those using biomarkers for exposure assessment, with some observing dose-response relationships. Though high-quality studies have been published since the IARC monograph on organophosphate insecticides in 2017, there are still gaps in the literature on carcinogenic evidence in humans for a large number of pesticides. To further knowledge, we suggest leveraging new techniques and methods to increase sensitivity and precision of exposure assessment, incorporate multi-omics data, and investigate more thoroughly exposure to chemical mixtures. There is also a strong need for better and larger population-based cohort studies that include younger and nonoccupationally exposed individuals, particularly during developmental periods of susceptibility. Though the existing evidence has limitations, as always in science, there is sufficient evidence to implement policies and regulatory action that limit pesticide exposure in humans and, hence, further prevent a significant burden of cancers.
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Affiliation(s)
- Haleigh Cavalier
- Department of PediatricsNew York University (NYU) School of MedicineNew YorkNew YorkUSA
- Department of Environmental MedicineNew York University (NYU) School of MedicineNew YorkNew YorkUSA
- Department of Population HealthNew York University (NYU) School of MedicineNew YorkNew YorkUSA
| | - Leonardo Trasande
- Department of PediatricsNew York University (NYU) School of MedicineNew YorkNew YorkUSA
- Department of Environmental MedicineNew York University (NYU) School of MedicineNew YorkNew YorkUSA
- Department of Population HealthNew York University (NYU) School of MedicineNew YorkNew YorkUSA
- NYU School of Global Public HealthNew YorkNew YorkUSA
| | - Miquel Porta
- Department of PediatricsNew York University (NYU) School of MedicineNew YorkNew YorkUSA
- School of MedicineUniversitat Autònoma de BarcelonaBarcelonaSpain
- Hospital del Mar Medical Research Institute (IMIM PSMar PRBB)BarcelonaCataloniaSpain
- Department of Epidemiology, Gillings School of Global Public HealthUniversity of North Carolina at Chapel HillChapel HillNorth CarolinaUSA
- Centro de Investigación Biomédica en Red en Epidemiología y Salud Pública (CIBERESP)MadridSpain
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3
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Rafeeinia A, Asadikaram G, Moazed V, Darabi MK. Organochlorine pesticides may induce leukemia by methylation of CDKN2B and MGMT promoters and histone modifications. Gene 2023; 851:146976. [DOI: 10.1016/j.gene.2022.146976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 09/25/2022] [Accepted: 10/11/2022] [Indexed: 11/27/2022]
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Ataei M, Abdollahi M. A systematic review of mechanistic studies on the relationship between pesticide exposure and cancer induction. Toxicol Appl Pharmacol 2022; 456:116280. [DOI: 10.1016/j.taap.2022.116280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 10/05/2022] [Accepted: 10/09/2022] [Indexed: 01/01/2023]
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5
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Tazarv M, Faraji H, Moghimi A, Azizinejad F. Bursting bubble flow microextraction combined with gas chromatography for determination of organochlorine pesticides in aqueous samples. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Negrete-Bolagay D, Zamora-Ledezma C, Chuya-Sumba C, De Sousa FB, Whitehead D, Alexis F, Guerrero VH. Persistent organic pollutants: The trade-off between potential risks and sustainable remediation methods. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 300:113737. [PMID: 34536739 DOI: 10.1016/j.jenvman.2021.113737] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 09/08/2021] [Accepted: 09/09/2021] [Indexed: 06/13/2023]
Abstract
Persistent Organic Pollutants (POPs) have become a very serious issue for the environment because of their toxicity, resistance to conventional degradation mechanisms, and capacity to bioconcentrate, bioaccumulate and biomagnify. In this review article, the safety, regulatory, and remediation aspects of POPs including aromatic, chlorinated, pesticides, brominated, and fluorinated compounds, are discussed. Industrial and agricultural activities are identified as the main sources of these harmful chemicals, which are released to air, soil and water, impacting on social and economic development of society at a global scale. The main types of POPs are presented, illustrating their effects on wildlife and human beings, as well as the ways in which they contaminate the food chain. Some of the most promising and innovative technologies developed for the removal of POPs from water are discussed, contrasting their advantages and disadvantages with those of more conventional treatment processes. The promising methods presented in this work include bioremediation, advanced oxidation, ionizing radiation, and nanotechnology. Finally, some alternatives to define more efficient approaches to overcome the impacts that POPs cause in the hydric sources are pointed out. These alternatives include the formulation of policies, regulations and custom-made legislation for controlling the use of these pollutants.
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Affiliation(s)
- Daniela Negrete-Bolagay
- School of Biological Sciences and Engineering, Yachay Tech University, 100119, Urcuquí, Ecuador.
| | - Camilo Zamora-Ledezma
- Tissue Regeneration and Repair: Orthobiology, Biomaterials & Tissue Engineering Research Group, UCAM - Universidad Católica de Murcia, Avda. Los Jerónimos 135, Guadalupe, 30107, Murcia, Spain.
| | - Cristina Chuya-Sumba
- School of Biological Sciences and Engineering, Yachay Tech University, 100119, Urcuquí, Ecuador.
| | - Frederico B De Sousa
- Laboratório de Sistemas Poliméricos e Supramoleculares, Physics and Chemistry Institute, Federal University of Itajubá, 37500-903, Itajubá, Brazil.
| | - Daniel Whitehead
- Department of Chemistry, Clemson University, Clemson, SC, 29634, USA.
| | - Frank Alexis
- School of Biological Sciences and Engineering, Yachay Tech University, 100119, Urcuquí, Ecuador.
| | - Victor H Guerrero
- Department of Materials, Escuela Politécnica Nacional, Ladrón de Guevara E11-253, Quito, 170525, Ecuador.
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Vera-Herrera L, Sadutto D, Picó Y. Non-Occupational Exposure to Pesticides: Experimental Approaches and Analytical Techniques (from 2019). Molecules 2021; 26:3688. [PMID: 34208757 PMCID: PMC8235395 DOI: 10.3390/molecules26123688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 06/04/2021] [Accepted: 06/07/2021] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Pesticide residues are a threat to the health of the global population, not only to farmers, applicators, and other pesticide professionals. Humans are exposed through various routes such as food, skin, and inhalation. This study summarizes the different methods to assess and/or estimate human exposure to pesticide residues of the global population. METHODS A systematic search was carried out on Scopus and web of science databases of studies on human exposure to pesticide residues since 2019. RESULTS The methods to estimate human health risk can be categorized as direct (determining the exposure through specific biomarkers in human matrices) or indirect (determining the levels in the environment and food and estimating the occurrence). The role that analytical techniques play was analyzed. In both cases, the application of generic solvent extraction and solid-phase extraction (SPE) clean-up, followed by liquid or gas chromatography coupled to mass spectrometry, is decisive. Advances within the analytical techniques have played an unquestionable role. CONCLUSIONS All these studies have contributed to an important advance in the knowledge of analytical techniques for the detection of pesticide levels and the subsequent assessment of nonoccupational human exposure.
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Affiliation(s)
| | | | - Yolanda Picó
- Food and Environmental Safety Research Group of the University of Valencia (SAMA-UV), Desertification Research Centre (CIDE), CSIC-GV-UV, Moncada-Naquera Road km 4.5, Moncada, 46113 Valencia, Spain; (L.V.-H.); (D.S.)
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Park EY, Kim J, Park E, Oh JK, Kim B, Lim MK. Serum concentrations of persistent organic pollutants and colorectal cancer risk: A case-cohort study within Korean National Cancer Center Community (KNCCC) cohort. CHEMOSPHERE 2021; 271:129596. [PMID: 33460900 DOI: 10.1016/j.chemosphere.2021.129596] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 11/10/2020] [Accepted: 01/04/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND & AIMS Recent prospective cohort studies have suggested that circulating persistent organic pollutants (POPs) may be associated with the development of cancers. We investigated the association between pre-diagnostic serum concentrations of POPs and colorectal cancer (CRC) risk. METHODS A case-cohort study within a community-based prospective cohort was performed, including 104 CRC cases and 235 subcohort participants. Serum concentrations of POPs were measured by high resolution gas chromatography/high-resolution mass spectrometry. Multivariable Cox proportional hazards regression models were used. RESULTS The association between serum concentrations of organochlorine pesticides (OCs) and CRC risk was significant (cis-heptachlor epoxide: 3rd tercile [HR (95% CI): 2.76 (1.25-6.07); trans-nonachlor: 2nd tercile [HR (95% CI): 3.90 (1.56-9.75)], 3rd tercile [HR (95% CI): 4.86 (1.95-12.16)]); p,p'-DDD: 2nd tercile [HR (95% CI): 6.02 (2.05-17.70)], 3rd tercile [HR (95% CI): 7.43 (2.42-22.84)]). Certain polychlorinated biphenyls (PCBs) congeners were significantly associated with CRC risk (PCB-105: 3rd tercile HR [95% CI]: 3.15 [1.38-7.19], PCB-118: 3rd tercile HR [95% CI]: 2.68 [1.22-5.92]; PCB-138: 2nd tercile [HR (95% CI): 2.51 (1.19-5.28)], 3rd tercile [HR (95% CI): 3.27 (1.50-7.12)]; PCB-153: 2nd tercile [HR (95% CI): 3.93 (1.81-8.54)], 3rd tercile [HR (95% CI): 5.02 (2.09-12.07)]; PCB-156: 2nd tercile [HR (95% CI): 2.61 (1.21-5.59)], 3rd tercile [HR (95% CI): 4.07 (1.73-9.61)]; PCB-180: 2nd tercile [HR (95% CI): 2.58 (1.15-5.78)], 3rd tercile [HR (95% CI): 4.01 (1.68-9.59)]).results CONCLUSIONS: This study suggests that serum concentrations of POPs could increase the CRC risk in the general population.
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Affiliation(s)
- Eun Young Park
- Division of Cancer Prevention & Early Detection, National Cancer Control Institute, National Cancer Center, Goyang-si, Gyeonggi-do, 10408, Republic of Korea
| | - Jinsun Kim
- Division of Cancer Prevention & Early Detection, National Cancer Control Institute, National Cancer Center, Goyang-si, Gyeonggi-do, 10408, Republic of Korea
| | - Eunjung Park
- Division of Cancer Prevention & Early Detection, National Cancer Control Institute, National Cancer Center, Goyang-si, Gyeonggi-do, 10408, Republic of Korea
| | - Jin-Kyoung Oh
- Division of Cancer Prevention & Early Detection, National Cancer Control Institute, National Cancer Center, Goyang-si, Gyeonggi-do, 10408, Republic of Korea; Department of Cancer Control and Population Health, National Cancer Center Graduate School of Cancer Science and Policy, Goyang-si, Gyeonggi-do, 10408, Republic of Korea
| | - Byungmi Kim
- Division of Cancer Prevention & Early Detection, National Cancer Control Institute, National Cancer Center, Goyang-si, Gyeonggi-do, 10408, Republic of Korea
| | - Min Kyung Lim
- Department of Cancer Control and Population Health, National Cancer Center Graduate School of Cancer Science and Policy, Goyang-si, Gyeonggi-do, 10408, Republic of Korea.
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Foucault A, Vallet N, Ravalet N, Picou F, Bene MC, Gyan E, Herault O. Occupational pesticide exposure increases risk of acute myeloid leukemia: a meta-analysis of case-control studies including 3,955 cases and 9,948 controls. Sci Rep 2021; 11:2007. [PMID: 33479366 PMCID: PMC7820275 DOI: 10.1038/s41598-021-81604-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 01/06/2021] [Indexed: 01/11/2023] Open
Abstract
The impact of pesticides on health is a major public health concern. A higher risk to develop chronic lymphoid malignancies has been demonstrated to be associated with occupational pesticide exposure (OPE). By contrast, little is known of the impact of OPE on the occurrence of myeloid malignancies especially acute myeloid leukemia (AML). The purpose of this meta-analysis is to summarize data on the association between OPE and AML. A relevant dataset of case-control studies was extracted. Among 6784 references extracted, 14 were selected, representing 3,955 AML patients and 9,948 control subjects diagnosed between 1976 and 2010. An adverse association was found between OPE and AML (OR = 1.51; 95%CI: 1.10-2.08), not affected by sensitivity analyses. Funnel plot asymmetry suggested a publication bias underestimating OR. Stratified analysis showed the association to be driven by studies with: (1) monocentric AML patients and hospital-based control population, (2) Newcastle-Ottawa scale > 6 and the group of studies identified as with the lowest risk, (3) exposure assessment through peer-to-peer interview, (4) diagnosis in North America and Asia and after 1995, (5) restriction to de novo AML. Moreover, the association between OPE and AML was significant with insecticides. These findings broaden the spectrum of pesticide toxicity to myeloid malignancies.
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Affiliation(s)
- Amelie Foucault
- Department of Biological Hematology, Tours University Hospital, Tours, France
- CNRS ERL7001 LNOX, EA 7501, Tours University, Tours, France
| | - Nicolas Vallet
- Department of Hematology and Cell Therapy, Tours University Hospital, Tours, France
| | - Noemie Ravalet
- Department of Biological Hematology, Tours University Hospital, Tours, France
- CNRS ERL7001 LNOX, EA 7501, Tours University, Tours, France
| | - Frederic Picou
- Department of Biological Hematology, Tours University Hospital, Tours, France
- CNRS ERL7001 LNOX, EA 7501, Tours University, Tours, France
| | - Marie C Bene
- Department of Biological Hematology, Nantes University Hospital, Nantes, France
| | - Emmanuel Gyan
- CNRS ERL7001 LNOX, EA 7501, Tours University, Tours, France
- Department of Hematology and Cell Therapy, Tours University Hospital, Tours, France
| | - Olivier Herault
- Department of Biological Hematology, Tours University Hospital, Tours, France.
- CNRS ERL7001 LNOX, EA 7501, Tours University, Tours, France.
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10
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Yang R, Ma D, Wu Y, Zhang Y, Zhang L. LncRNA SNHG16 Regulates the Progress of Acute Myeloid Leukemia Through miR183-5p-FOXO1 Axis. Onco Targets Ther 2020; 13:12943-12954. [PMID: 33364784 PMCID: PMC7751589 DOI: 10.2147/ott.s258684] [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: 04/17/2020] [Accepted: 08/25/2020] [Indexed: 12/13/2022] Open
Abstract
Purpose At present, there is a lack of precise knowledge on acute myeloid leukemia (AML) at the molecular level, and understanding its occurrence at the genetic level is conducive to the development of targeted therapies. Therefore, in this study the relationship between the lncRNA SNHG1 –miR183-5p–FOXO1 axis and AML was explored. Methods Expression of lncRNA SNHG16 and miR183-5p was quantified by quantitative real-time PCR, and the level of FOXO1 and other proteins was measured by Western blot. Expression vectors of lncRNA SNHG16, miR183-5p, and FOXO1 were constructed to assess effects of the three on cell proliferation and apoptosis. MTT reduction assays were employed for cell proliferation, flow cytometry for cell cycle and apoptosis, and dual luciferase–reporter assays for the targeting relationship between lncRNA SNHG16 and miR183-5p and miR183-5p and FOXO1. Results lncRNA SNHG16 was highly expressed in peripheral blood/leukemia cell lines of patients with AML compared with normal human peripheral blood/peripheral blood mononuclear cells. miR183-5p was the target of lncRNA SNHG16 and FOXO1 the target gene of miR183-5p rather than lncRNA SNHG16. Absence of lncRNA SNHG16 led to upregulation of miR183-5p, promotion of apoptosis, and inhibition of proliferation. Suppression of miR183-5p accelerated cell proliferation and hindered apoptosis. miR183-5p negatively regulated FOXO1, and FOXO1 promoted proliferation and inhibited apoptosis. Inhibition of miR183-5p counteracted the changes caused by lncRNA SNHG16 absence. Conclusion lncRNA SNHG16 regulates the progress of AML via the miR183-5p–FOXO1 axis.
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Affiliation(s)
- Ru Yang
- Henan Key Laboratory of Neurorestoratology, First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan Province, People's Republic of China
| | - Dong Ma
- Hematology Laboratory, First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan Province, People's Republic of China
| | - Yanwei Wu
- Clinical Laboratory, First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan Province, People's Republic of China
| | - Yingzi Zhang
- Department of Blood Transfusion, First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan Province, People's Republic of China
| | - Lina Zhang
- Central Laboratory, First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan Province, People's Republic of China
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Risk of genotoxic damage in schoolchildren exposed to organochloride pesticides. Sci Rep 2020; 10:17584. [PMID: 33067503 PMCID: PMC7567889 DOI: 10.1038/s41598-020-74620-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Accepted: 09/28/2020] [Indexed: 01/09/2023] Open
Abstract
This study identified and determined organochloride pesticide (OCs) concentrations in hair samples from children at two elementary schools: one exposed to fumigations in agricultural fields, the other unexposed. Three concentrations of OCs levels in the hair were compared (high, medium, low), and total nuclear abnormalities in buccal cells were determined: micronuclei (MNi), condensed chromatin, karyorrhexis, pyknosis, binucleate cells, karyolysis, lobed nuclei, and apoptosis. No significant differences were found for the presence of MNi between the schoolchildren from the exposed and unexposed schools, but the prevalence of OCs in both schools was over 50%, as well as the frequencies of MNi in the children were over 58%. Findings show a significant difference between the frequency of MNi in the total sample of schoolchildren (exposed school + unexposed school) in relation to the concentration of OCs detected in their hair. The children from exposed school that showed the higher concentrations of OCs in hair had higher levels of genotoxic damage in the buccal cells; compared against children with lower concentrations of OCs. The most frequent nuclear abnormalities in the exposed children were lobed nuclei (79.4%), binucleate cells (66.66%), apoptosis (65.07), and MNi (58.7%). We determined the prevalence ratio (PR) and prevalence odds ratio (POR) for the presence of MNi in buccal cells in relation to the OCs concentrations in the hair samples. Both ratios were high for MNi [PR 3.93, 95% confidence interval (CI) 1.97–7.84, p = 0.0003; and POR 7.97, 95% CI 2.62–24.28, p = 0.0003], indicating a 7.97 times greater risk that the exposed children will present > 0.2% of MNi when OCs concentrations exceed 0.447 μg/g. These indicators may be useful biomarkers of genotoxic damage in children exposed to persistent, highly-toxic compounds. Results suggest the potential risk to which those schoolchildren are exposed on a daily basis due to fumigations in nearby agricultural fields.
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Wang Y, Guo Y, Hu Y, Sun Y, Xu D. Endosulfan triggers epithelial-mesenchymal transition via PTP4A3-mediated TGF-β signaling pathway in prostate cancer cells. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 731:139234. [PMID: 32413665 DOI: 10.1016/j.scitotenv.2020.139234] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 05/02/2020] [Accepted: 05/03/2020] [Indexed: 06/11/2023]
Abstract
Endosulfan is a persistent organochlorine pesticide that bioaccumulates in human body through the food chain and thus represents a potential risk to public health. Despite epidemiological studies, the molecular mechanisms underlying the carcinogenic effects of endosulfan in the prostate remain poorly understood. In this study, we investigated the effect of endosulfan on epithelial-mesenchymal transition (EMT) in human prostate cancer PC3 and DU145 cells. Endosulfan induced alterations of EMT biomarkers, reflecting repression of E-cadherin expression and induction of fibronectin, snail2, ZEB2, Twist1 and Vimentin. The expression of Protein-tyrosine Phosphatase 4A3 (PTP4A3) at mRNA and protein levels was upregulated by endosulfan. PTP4A3 inhibitor reversed the changes of EMT biomarkers, PTP4A3 and p-Smad2/Smad2, but did not affect the upregulation of Cleaved-Notch1 and Jagged1 in endosulfan-exposed cells. Endosulfan promoted cell migration and invasion, which were rescued by specific inhibitors for PTP4A3, TGF-β signaling and Notch signaling, respectively. These findings suggest that endosulfan promoted cell migration and invasion with the induction of EMT through PTP4A3-mediated TGF-β signaling pathway in prostate cancer cells.
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Affiliation(s)
- Yue Wang
- Institute of Environmental Systems Biology, Environment Science and Engineering College, Dalian Maritime University, Linghai Road 1, Dalian 116026, PR China
| | - Yubing Guo
- Institute of Environmental Systems Biology, Environment Science and Engineering College, Dalian Maritime University, Linghai Road 1, Dalian 116026, PR China
| | - Yumeng Hu
- Institute of Environmental Systems Biology, Environment Science and Engineering College, Dalian Maritime University, Linghai Road 1, Dalian 116026, PR China
| | - Yeqing Sun
- Institute of Environmental Systems Biology, Environment Science and Engineering College, Dalian Maritime University, Linghai Road 1, Dalian 116026, PR China
| | - Dan Xu
- Institute of Environmental Systems Biology, Environment Science and Engineering College, Dalian Maritime University, Linghai Road 1, Dalian 116026, PR China.
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