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Feng X, Zhang R, Miao X, Li X, Cui J, Xu H, Fang X, Zhou C, Ye L, Zhou L. Role of formyl peptide receptor 2 in steatosis of L02 cells exposed to Mono-(2-ethylhexyl) phthalate. ENVIRONMENTAL TOXICOLOGY 2024; 39:3967-3979. [PMID: 38598732 DOI: 10.1002/tox.24256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 02/01/2024] [Accepted: 03/14/2024] [Indexed: 04/12/2024]
Abstract
Mono-(2-ethylhexyl) phthalate (MEHP) can accumulate in the liver and then lead to hepatic steatosis, while the underlying mechanism remains unclear. Inflammation plays an important role in the disorder of hepatic lipid metabolism. This study aims to clarify the role of the inflammatory response mediated by formyl peptide receptor 2 (FPR2) in steatosis of L02 cells exposed to MEHP. L02 cells were exposed to MEHP of different concentrations and different time. A steatosis model of L02 cells was induced with oleic acid and the cells were exposed to MEHP simultaneously. In addition, L02 cells were incubated with FPR2 antagonist and then exposed to MEHP. Lipid accumulation was determined by oil red O staining and extraction assay. The indicators related to lipid metabolism and inflammatory response were measured with appropriate kits. The relative expression levels of FPR2 and its ligand were determined by Western blot, and the interaction of them was detected by co-immunoprecipitation. As a result, MEHP exposure could promote the occurrence and progression of steatosis and the secretion of chemokines and inflammatory factors in L02 cells. MEHP could also affect the expression and activation of FPR2 and the secretion of FPR2 ligands. In addition, the promotion effect of MEHP on the secretion of total cholesterol and interleukin 1β in L02 cells could be significantly inhibited by the FPR2 antagonist. We concluded that FPR2 might affect the promotion effect of MEHP on steatosis of L02 cells by mediating inflammatory response.
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Affiliation(s)
- Xuemin Feng
- Department of Neurology, the First Hospital of Jilin University, Changchun, China
| | - Ruxuan Zhang
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Xiaohan Miao
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Xu Li
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Jianwei Cui
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Hang Xu
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Xiaoqi Fang
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Chunkui Zhou
- Department of Neurology, the First Hospital of Jilin University, Changchun, China
| | - Lin Ye
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Liting Zhou
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
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Singh J, Jangra A, Kumar D. Recent advances in toxicological research of di-(2-ethylhexyl)-phthalate: Focus on endoplasmic reticulum stress pathway. CHEMOSPHERE 2024; 356:141922. [PMID: 38593956 DOI: 10.1016/j.chemosphere.2024.141922] [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: 09/13/2023] [Revised: 01/01/2024] [Accepted: 04/03/2024] [Indexed: 04/11/2024]
Abstract
The plasticizer di-(2-ethylhexyl)-phthalate (DEHP) is the most significant phthalate in production, usage, and environmental occurrence. DEHP is found in products such as personal care products, furniture materials, cosmetics, and medical devices. DEHP is noncovalently bind with plastic therefore, repeated uses lead to leaching out of it. Exposure to DEHP plasticizers leads to toxicity in essential organs of the body through various mechanisms. The main objective of this review article is to focus on the DEHP-induced endoplasmic reticulum (ER) stress pathway implicated in the testis, brain, lungs, kidney, heart, liver, and other organs. Not only ER stress, PPAR-related pathways, oxidative stress and inflammation, Ca2+ homeostasis disturbances in mitochondria are also identified as the relative mechanisms. ER is involved in various critical functions of the cell such as Protein synthesis, protein folding, calcium homeostasis, and lipid peroxidation but, DEHP exposure leads to augmentation of misfolded/unfolded protein. This review complies with various recently reported DEHP-induced toxicity studies and some pharmacological interventions that have been shown to be effective through ER stress pathway. DEHP exposure does assess health risks and vulnerability to populations across the globe. This study offers possible targets and approaches for addressing various DEHP-induced toxicity.
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Affiliation(s)
- Jiten Singh
- Department of Pharmaceutical Sciences, School of Interdisciplinary and Applied Sciences, Central University of Haryana, Mahendergarh, 123031, Haryana, India
| | - Ashok Jangra
- Department of Pharmaceutical Sciences, School of Interdisciplinary and Applied Sciences, Central University of Haryana, Mahendergarh, 123031, Haryana, India.
| | - Dinesh Kumar
- Department of Pharmaceutical Sciences, School of Interdisciplinary and Applied Sciences, Central University of Haryana, Mahendergarh, 123031, Haryana, India.
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Meng M, Yang Y, Song L, Peng J, Li S, Gao Z, Bu Y, Gao J. Association between urinary phthalates and phthalate metabolites and cancer risk: A systematic review and meta-analysis. Heliyon 2024; 10:e29684. [PMID: 38665549 PMCID: PMC11044039 DOI: 10.1016/j.heliyon.2024.e29684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 04/12/2024] [Accepted: 04/12/2024] [Indexed: 04/28/2024] Open
Abstract
Phthalates, widely utilized in industrial products, are classified as endocrine-disrupting chemicals (EDCs). Although certain phthalate and their metabolites have been implicated in cancer development, the reported findings have exhibited inconsistencies. Therefore, we conducted the comprehensive literature search to assess the association between phthalate and their metabolites and cancer risk by identifying original studies measuring phthalates or their metabolites and reporting their correlation with cancer until July 4, 2023. The Odds Ratios (ORs) and corresponding 95% confidence intervals (CIs) were extracted and analyzed to estimate the risk. Pooled data from eleven studies, including 3101 cancer patients and 6858 controls, were analyzed using a fixed- or random-effects model based on heterogeneity tests. When comparing extreme categories of different phthalates and their metabolites, we observed a significant association between urinary phthalates and phthalate metabolites (MEHHP, MECPP, DBP and MBzP) and cancer risk. The findings of our meta-analysis reinforce the existing evidence that urinary phthalates and phthalate metabolites is strongly associated with cancer development. Further investigations are warranted to elucidate the underlying mechanisms of this association. These results may offer novel insights into cancer development.
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Affiliation(s)
- Meng Meng
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Chongqing Medical University, Chongqing, China
- Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing, China
| | - Yao Yang
- Department of Pharmacy, The General Hospital of Western Theater Command of PLA, Chengdu, China
| | - Liang Song
- Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic Diseases, Chongqing Medical University, Chongqing, China
| | - Jian Peng
- Biobank Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Shenglong Li
- Department of Bioinformatics, School of Basic Medical Sciences, Chongqing Medical University, Chongqing, China
| | - Zhengjun Gao
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Chongqing Medical University, Chongqing, China
- Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing, China
| | - Youquan Bu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Chongqing Medical University, Chongqing, China
- Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing, China
| | - Junwei Gao
- Department of Military Cognitive Psychology, School of Psychology, Third Military Medical University (Army Medical University), Chongqing, 400038, China
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Mariana M, Soares AMVM, Castelo-Branco M, Cairrao E. Exposure to DEP Modifies the Human Umbilical Artery Vascular Resistance Contributing to Hypertension in Pregnancy. J Xenobiot 2024; 14:497-515. [PMID: 38651380 PMCID: PMC11036297 DOI: 10.3390/jox14020030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/14/2024] [Accepted: 04/15/2024] [Indexed: 04/25/2024] Open
Abstract
Hypertensive disorders in pregnancy (HDP) are the most prevalent diseases during pregnancy. In addition to the already identified risk factors, exposure to environmental contaminants has been also considered a new one. Phthalates, which are classified as priority environmental pollutants due to their ubiquitousness and endocrine disrupting properties, have been implicated in HDP in some epidemiological studies. Nevertheless, phthalates' vascular impacts still need to be clarified. Thus, we aimed to understand the connection between phthalates exposure and the occurrence of gestational hypertension, as well as the pathway involved in the pathological vascular effects. We investigated diethyl phthalate's (DEP) effect on the vascular reactivity of the human umbilical arteries (HUAs) from normotensive and hypertensive pregnant women. Both DEP's nongenomic (within minutes effect) and genomic (24 h exposure to DEP) actions were evaluated, as well as the contribution of cyclic guanosine monophosphate and Ca2+ channel pathways. The results show that short-term exposure to DEP interferes with serotonin and histamine receptors, while after prolonged exposure, DEP seems to share the same vasorelaxant mechanism as estrogens, through the NO/sGC/cGMP/PKG signaling pathway, and to interfere with the L-type Ca2+ channels. Thus, the vascular effect induced by DEP is similar to that observed in HUA from hypertensive pregnancies, demonstrating that the development of HDP may be a consequence of DEP exposure.
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Affiliation(s)
- Melissa Mariana
- Health Sciences Research Centre (CICS-UBI), University of Beira Interior, 6200-506 Covilha, Portugal; (M.M.); (M.C.-B.)
- Faculty of Sciences (FC-UBI), University of Beira Interior, 6201-001 Covilha, Portugal
| | - Amadeu M. V. M. Soares
- Centre for Environmental and Marine Studies (CESAM-UA), Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal;
| | - Miguel Castelo-Branco
- Health Sciences Research Centre (CICS-UBI), University of Beira Interior, 6200-506 Covilha, Portugal; (M.M.); (M.C.-B.)
- Faculty of Health Sciences (FCS-UBI), University of Beira Interior, 6200-506 Covilha, Portugal
| | - Elisa Cairrao
- Health Sciences Research Centre (CICS-UBI), University of Beira Interior, 6200-506 Covilha, Portugal; (M.M.); (M.C.-B.)
- Faculty of Health Sciences (FCS-UBI), University of Beira Interior, 6200-506 Covilha, Portugal
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Mariana M, Lorigo M, Feiteiro J, Castelo-Branco M, Soares AM, Cairrao E. Adverse cardiovascular effects of long-term exposure to diethyl phthalate in the rat aorta. CHEMOSPHERE 2023; 340:139904. [PMID: 37611763 DOI: 10.1016/j.chemosphere.2023.139904] [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: 03/01/2023] [Revised: 05/17/2023] [Accepted: 08/19/2023] [Indexed: 08/25/2023]
Abstract
Phthalates are classified as priority environmental pollutants, since they are ubiquitous in the environment, have endocrine disrupting properties and can contribute to impaired health. Used primarily in personal care products and excipients for pharmaceuticals, diethyl phthalate (DEP) is a short-chain alkyl phthalate that has been linked to decreased blood pressure, glucose tolerance, and increased gestational weight gain in humans, while in animals it has been associated with atherosclerosis and metabolic syndrome. Although all these findings are related to risk factors or cardiovascular diseases, DEP's vascular impacts still need to be clarified. Thus, performing ex vivo and in vitro experiments, we aimed to understand the vascular DEP effects in rat. To evaluate the vascular contractility of rat aorta exposed to different doses of DEP (0.001-1000 μM), an organs bath was used; and resorting to a cell line of the rat aorta vascular smooth muscle, electrophysiology experiments were performed to analyse the effects of a rapid (within minutes with no genomic effects) and a long-term (24 h with genomic effects) exposure of DEP on the L-type Ca2+ current (ICa,L), and the expression of several genes related with the vascular function. For the first time, vascular electrophysiological properties of an EDC were analysed after a long-term genomic exposure. The results show a hormetic response of DEP, inducing a Ca2+ current inhibition of the rat aorta, which may be responsible for impaired cardiovascular electrical health. Thus, these findings contribute to a greater scientific knowledge about DEP's effects in the cardiovascular system, specifically its implications in the development of electrical disturbances like arrhythmias and its possible mechanisms.
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Affiliation(s)
- Melissa Mariana
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, 6200-506, Covilhã, Portugal; FCS-UBI - Faculty of Health Sciences, University of Beira Interior, 6200-506, Covilhã, Portugal.
| | - Margarida Lorigo
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, 6200-506, Covilhã, Portugal; FCS-UBI - Faculty of Health Sciences, University of Beira Interior, 6200-506, Covilhã, Portugal.
| | - Joana Feiteiro
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, 6200-506, Covilhã, Portugal; FCS-UBI - Faculty of Health Sciences, University of Beira Interior, 6200-506, Covilhã, Portugal.
| | - Miguel Castelo-Branco
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, 6200-506, Covilhã, Portugal; FCS-UBI - Faculty of Health Sciences, University of Beira Interior, 6200-506, Covilhã, Portugal.
| | - Amadeu M Soares
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, 3810-193, Aveiro, Portugal.
| | - Elisa Cairrao
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, 6200-506, Covilhã, Portugal; FCS-UBI - Faculty of Health Sciences, University of Beira Interior, 6200-506, Covilhã, Portugal.
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Sousa-Vidal ÉK, Henrique G, da Silva REC, Serrano-Nascimento C. Intrauterine exposure to di(2-ethylhexyl) phthalate (DEHP) disrupts the function of the hypothalamus-pituitary-thyroid axis of the F1 rats during adult life. Front Endocrinol (Lausanne) 2022; 13:995491. [PMID: 36714560 PMCID: PMC9880230 DOI: 10.3389/fendo.2022.995491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 12/07/2022] [Indexed: 01/15/2023] Open
Abstract
INTRODUCTION DEHP is an endocrine disruptor widely used in the production of malleable plastics. DEHP exposure was associated with altered hypothalamic-pituitary-thyroid (HPT) axis function. Although previous studies reported deleterious effects of DEHP exposure during the intrauterine period, few studies have evaluated the direct effects triggered by this endocrine disruptor on the offspring animals' thyroid function. This study aimed to investigate the impact of intrauterine exposure to DEHP on the HPT axis function programming of the offspring animals during adulthood. METHODS Pregnant Wistar rats were orally treated with corn oil or corn oil supplemented with DEHP (0.48 or 4.8 mg/kg/day) throughout the gestational period. The offspring rats were euthanized on the 90th postnatal day. Hypothalamus, pituitary, thyroid, and liver were collected to analyze gene expression and protein content through qPCR and Western Blot. Blood was collected to determine TSH and thyroid hormone levels through fluorometric or chemiluminescence immunoassays. RESULTS In the adult F1 female rats, the highest dose of DEHP decreased TSH serum levels. In the thyroid, DEHP reduced the gene expression and/or protein content of NIS, TSHR, TG, TPO, MCT8, NKX2.1, PAX8, and FOXE1. These data are consistent with the reduction in T4 serum levels of the F1 DEHP-exposed female rats. In the liver, DEHP exposure increased the mRNA expression of Dio1 and Ttr, while the highest dose of DEHP reduced the mRNA expression of Ugt1a1 and Ugt1a6. Conversely, in the F1 male adult rats, TSHB expression and TSH serum levels were increased in DEHP-exposed animals. In the thyroid, except for the reduced protein content of TSHR, none of the evaluated genes/proteins were altered by DEHP. TH serum levels were not changed in the DEHP-exposed F1 male rats compared to the control group. Additionally, there were no significant alterations in the expression of hepatic enzymes in these animals. DISCUSSION/CONCLUSIONS Our results demonstrated, for the first time, that intrauterine exposure to DEHP disrupts the HPT axis function in male and female offspring rats and strongly suggest that DEHP exposure increases the susceptibility of the offspring animals to develop thyroid dysfunctions during adulthood.
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Affiliation(s)
- Érica Kássia Sousa-Vidal
- Faculdade Israelita de Ciências da Saúde Albert Einstein, Hospital Israelita Albert Einstein, São Paulo, Brazil
| | - Guilherme Henrique
- Laboratório de Endocrinologia Molecular e Translacional (LEMT), Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
| | - Renata Elen Costa da Silva
- Laboratório de Endocrinologia Molecular e Translacional (LEMT), Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
| | - Caroline Serrano-Nascimento
- Faculdade Israelita de Ciências da Saúde Albert Einstein, Hospital Israelita Albert Einstein, São Paulo, Brazil
- Laboratório de Endocrinologia Molecular e Translacional (LEMT), Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas (ICAQF), Departamento de Ciências Biológicas, Universidade Federal de São Paulo (UNIFESP), Diadema, Brazil
- *Correspondence: Caroline Serrano-Nascimento,
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