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Roy S, Moran J, Danasekaran K, O’Brien K, Dakshanamurthy S. Large-Scale Screening of Per- and Polyfluoroalkyl Substance Binding Interactions and Their Mixtures with Nuclear Receptors. Int J Mol Sci 2024; 25:8241. [PMID: 39125814 PMCID: PMC11312074 DOI: 10.3390/ijms25158241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2024] [Revised: 07/26/2024] [Accepted: 07/26/2024] [Indexed: 08/12/2024] Open
Abstract
Despite their significant impact, comprehensive screenings and detailed analyses of per- and polyfluoroalkyl substance (PFAS) binding strengths at the orthosteric and allosteric sites of NRs are currently lacking. This study addresses this gap by focusing on the binding interaction analysis of both common and uncommon PFAS with the nuclear receptors (NRs) vitamin D receptor (VDR), peroxisome proliferator-activated receptor gamma (PPARγ), pregnane X receptor (PXR), and estrogen receptor alpha (ERα). Advanced docking simulations were used to screen 9507 PFAS chemicals at the orthosteric and allosteric sites of PPARγ, PXR, VDR, and ERα. All receptors exhibited strong binding interactions at the orthosteric and allosteric site with a significant number of PFAS. We verified the accuracy of the docking protocol through multiple docking controls and validations. A mixture modeling analysis indicates that PFAS can bind in various combinations with themselves and endogenous ligands simultaneously, to disrupt the endocrine system and cause carcinogenic responses. These findings reveal that PFAS can interfere with nuclear receptor activity by displacing endogenous or native ligands by binding to the orthosteric and allosteric sites. The purpose of this study is to explore the mechanisms through which PFAS exert their endocrine-disrupting effects, potentially leading to more targeted therapeutic strategies. Importantly, this study is the first to explore the binding of PFAS at allosteric sites and to model PFAS mixtures at nuclear receptors. Given the high concentration and persistence of PFAS in humans, this study further emphasizes the urgent need for further research into the carcinogenic mechanisms of PFAS and the development of therapeutic strategies that target nuclear receptors.
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Affiliation(s)
- Saptarshi Roy
- College of Humanities and Sciences, Virginia Commonwealth University, 907 Floyd Ave, Richmond, VA 23284, USA
| | - James Moran
- College of Arts & Sciences, Georgetown University, 3700 O St NW, Washington, DC 20057, USA
| | - Keerthana Danasekaran
- College of Arts and Sciences, University of Rochester, 500 Joseph C. Wilson Blvd, Rochester, NY 14627, USA
| | - Kate O’Brien
- Davidson College, 405 N Main St, Davidson, NC 28035, USA
| | - Sivanesan Dakshanamurthy
- Lombardi Comprehensive Cancer Center, Georgetown University, 3700 O St NW, Washington, DC 20057, USA
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Cirello V, Lugaresi M, Moneta C, Dufour P, Manzo A, Carbone E, Colombo C, Fugazzola L, Charlier C, Pirard C. Thyroid cancer and endocrine disruptive chemicals: a case-control study on per-fluoroalkyl substances and other persistent organic pollutants. Eur Thyroid J 2024; 13:e230192. [PMID: 38657654 PMCID: PMC11227063 DOI: 10.1530/etj-23-0192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 04/24/2024] [Indexed: 04/26/2024] Open
Abstract
Objective The aim was to evaluate the possible association between some endocrine disruptive chemicals and thyroid cancer (TC) in an Italian case-control cohort. Methods We enrolled 112 TC patients and 112 sex- and age-matched controls without known thyroid diseases. Per- and poly-fluoroalkyl substances (PFAS), poly-chlorinated biphenyls (PCBs), and dichlorodiphenyltrichloroethane (4,4'-DDT and 4,4'-DDE) were measured in the serum by liquid or gas chromatography-mass spectrometry. Unconditional logistic regression, Bayesan kernel machine regression and weighted quantile sum models were used to estimate the association between TC and pollutants' levels, considered individually or as mixture. BRAFV600E mutation was assessed by standard methods. Results The detection of perfluorodecanoic acid (PFDA) was positively correlated to TC (OR = 2.03, 95% CI: 1.10-3.75, P = 0.02), while a negative association was found with perfluorohexanesulfonic acid (PFHxS) levels (OR = 0.63, 95% CI: 0.41-0.98, P = 0.04). Moreover, perfluorononanoic acid (PFNA) was positively associated with the presence of thyroiditis, while PFHxS and perfluorooctane sulfonic acid (PFOS) with higher levels of presurgical thyroid-stimulating hormone (TSH). PFHxS, PFOS, PFNA, and PFDA were correlated with less aggressive TC, while poly-chlorinated biphenyls (PCB-105 and PCB-118) with larger and more aggressive tumors. Statistical models showed a negative association between pollutants' mixture and TC. BRAF V600E mutations were associated with PCB-153, PCB-138, and PCB-180. Conclusion Our study suggests, for the first time in a case-control population, that exposure to some PFAS and PCBs associates with TC and some clinical and molecular features. On the contrary, an inverse correlation was found with both PFHxS and pollutants' mixture, likely due to a potential reverse causality.
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Affiliation(s)
- Valentina Cirello
- Department of Endocrine and Metabolic Diseases, Istituto Auxologico Italiano IRCCS, Milan, Italy
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Marina Lugaresi
- Department of Biotechnology and Translational Medicine, University of Milan, Milan, Italy
| | - Claudia Moneta
- Department of Biotechnology and Translational Medicine, University of Milan, Milan, Italy
| | - Patrice Dufour
- Department of Clinical, Forensic and Environmental Toxicology, University hospital of Liege (CHU Liège), CHU (B35), Liege, Belgium
- Center for Interdisciplinary Research on Medicines (C.I.R.M.), University of Liege (ULiège), CHU (B35), Liege, Belgium
| | - Alessandro Manzo
- Department of Endocrine and Metabolic Diseases, Istituto Auxologico Italiano IRCCS, Milan, Italy
- Department of Biotechnology and Translational Medicine, University of Milan, Milan, Italy
| | - Erika Carbone
- Department of Endocrine and Metabolic Diseases, Istituto Auxologico Italiano IRCCS, Milan, Italy
| | - Carla Colombo
- Department of Endocrine and Metabolic Diseases, Istituto Auxologico Italiano IRCCS, Milan, Italy
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Laura Fugazzola
- Department of Endocrine and Metabolic Diseases, Istituto Auxologico Italiano IRCCS, Milan, Italy
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Corinne Charlier
- Department of Clinical, Forensic and Environmental Toxicology, University hospital of Liege (CHU Liège), CHU (B35), Liege, Belgium
- Center for Interdisciplinary Research on Medicines (C.I.R.M.), University of Liege (ULiège), CHU (B35), Liege, Belgium
| | - Catherine Pirard
- Department of Clinical, Forensic and Environmental Toxicology, University hospital of Liege (CHU Liège), CHU (B35), Liege, Belgium
- Center for Interdisciplinary Research on Medicines (C.I.R.M.), University of Liege (ULiège), CHU (B35), Liege, Belgium
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Qiu C, Xiang YK, Da XB, Zhang HL, Kong XY, Hou NZ, Zhang C, Tian FZ, Yang YL. Phospholipase A2 enzymes PLA2G2A and PLA2G12B as potential diagnostic and prognostic biomarkers in cholangiocarcinoma. World J Gastrointest Surg 2024; 16:289-306. [PMID: 38463362 PMCID: PMC10921223 DOI: 10.4240/wjgs.v16.i2.289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 12/19/2023] [Accepted: 01/15/2024] [Indexed: 02/25/2024] Open
Abstract
BACKGROUND Phospholipase A2 (PLA2) enzymes are pivotal in various biological processes, such as lipid mediator production, membrane remodeling, bioenergetics, and maintaining the body surface barrier. Notably, these enzymes play a significant role in the development of diverse tumors. AIM To systematically and comprehensively explore the expression of the PLA2 family genes and their potential implications in cholangiocarcinoma (CCA). METHODS We conducted an analysis of five CCA datasets from The Cancer Genome Atlas and the Gene Expression Omnibus. The study identified differentially expressed genes between tumor tissues and adjacent normal tissues, with a focus on PLA2G2A and PLA2G12B. Gene Set Enrichment Analysis was utilized to pinpoint associated pathways. Moreover, relevant hub genes and microRNAs for PLA2G2A and PLA2G12B were predicted, and their correlation with the prognosis of CCA was evaluated. RESULTS PLA2G2A and PLA2G12B were discerned as differentially expressed in CCA, manifesting significant variations in expression levels in urine and serum between CCA patients and healthy individuals. Elevated expression of PLA2G2A was correlated with poorer overall survival in CCA patients. Additionally, the study delineated pathways and miRNAs associated with these genes. CONCLUSION Our findings suggest that PLA2G2A and PLA2G12B may serve as novel potential diagnostic and prognostic markers for CCA. The increased levels of these genes in biological fluids could be employed as non-invasive markers for CCA, and their expression levels are indicative of prognosis, underscoring their potential utility in clinical settings.
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Affiliation(s)
- Chen Qiu
- Center of Gallbladder Disease, Shanghai East Hospital, Institute of Gallstone Disease, School of Medicine, Tongji University, Shanghai 200092, China
| | - Yu-Kai Xiang
- Center of Gallbladder Disease, Shanghai East Hospital, Institute of Gallstone Disease, School of Medicine, Tongji University, Shanghai 200092, China
| | - Xuan-Bo Da
- Center of Gallbladder Disease, Shanghai East Hospital, Institute of Gallstone Disease, School of Medicine, Tongji University, Shanghai 200092, China
| | - Hong-Lei Zhang
- Center of Gallbladder Disease, Shanghai East Hospital, Institute of Gallstone Disease, School of Medicine, Tongji University, Shanghai 200092, China
| | - Xiang-Yu Kong
- Center of Gallbladder Disease, Shanghai East Hospital, Institute of Gallstone Disease, School of Medicine, Tongji University, Shanghai 200092, China
| | - Nian-Zong Hou
- Center of Gallbladder Disease, Shanghai East Hospital, Institute of Gallstone Disease, School of Medicine, Tongji University, Shanghai 200092, China
| | - Cheng Zhang
- Center of Gallbladder Disease, Shanghai East Hospital, Institute of Gallstone Disease, School of Medicine, Tongji University, Shanghai 200092, China
| | - Fu-Zhou Tian
- General Surgery Center, Chengdu Military General Hospital, Chengdu 610083, Sichuan Province, China
| | - Yu-Long Yang
- Center of Gallbladder Disease, Shanghai East Hospital, Institute of Gallstone Disease, School of Medicine, Tongji University, Shanghai 200092, China
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Zhai Z, Mu T, Zhao L, Zhu D, Zhong X, Li Y, Liang C, Li W, Zhou Q. Stachydrine represses the proliferation and enhances cell cycle arrest and apoptosis of breast cancer cells via PLA2G2A/DCN axis. Chem Biol Drug Des 2024; 103:e14429. [PMID: 38230769 DOI: 10.1111/cbdd.14429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 12/03/2023] [Accepted: 12/11/2023] [Indexed: 01/18/2024]
Abstract
Considering the therapeutic efficacy of Stachydrine on breast cancer (BC), this study aims to decipher the relevant mechanism. The effects of Stachydrine on BC cell viability, proliferation and apoptosis were firstly investigated. Then, Bioinformatics was applied to sort out the candidate interacting with Stachydrine as well as its expression and downstream target in BC. Relative expressions of genes of interest as well as proliferation- and apoptosis-related factors in BC cells were quantified through quantitative reverse-transcription PCR and western blot as appropriate. As a result, Stachydrine inhibited the proliferation, down-regulated the expressions of proliferating cell nuclear antigen and CyclinD1, enhanced cell cycle arrest and apoptosis, and up-regulated the levels of Cleaved caspase-3 and Cleaved caspase-9 in BC cells. Phospholipase A2 Group IIA (PLA2G2A) was predicted as the candidate interacting with Stachydrine and to be lowly expressed in BC. PLA2G2A silencing reversed while PLA2G2A overexpression reinforced the effects of Stachydrine. Decorin (DCN) was the downstream target of PLA2G2A and also lowly expressed in BC. PLA2G2A silencing counteracted yet overexpressed PLA2G2A strengthened the promoting effects of Stachydrine on DCN level. Collectively, Stachydrine inhibits the growth of BC cells to promote cell cycle arrest and apoptosis via PLA2G2A/DCN axis.
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Affiliation(s)
- Zhen Zhai
- Mammary Department, Dongfang Hospital Beijing University of Chinese Medicine, Beijing, China
| | - Tianlong Mu
- Pathology Department, Dongfang Hospital Beijing University of Chinese Medicine, Beijing, China
| | - Lina Zhao
- Mammary Department, Dongfang Hospital Beijing University of Chinese Medicine, Beijing, China
| | - Dongsheng Zhu
- Mammary Department, Dongfang Hospital Beijing University of Chinese Medicine, Beijing, China
| | - Xin Zhong
- Mammary Department, Dongfang Hospital Beijing University of Chinese Medicine, Beijing, China
| | - Yiliang Li
- Mammary Department, Dongfang Hospital Beijing University of Chinese Medicine, Beijing, China
| | - Chen Liang
- Mammary Department, Dongfang Hospital Beijing University of Chinese Medicine, Beijing, China
| | - Wei Li
- Mammary Department, Dongfang Hospital Beijing University of Chinese Medicine, Beijing, China
| | - Qingyuan Zhou
- Mammary Department, Dongfang Hospital Beijing University of Chinese Medicine, Beijing, China
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Wang T, Xu H, Guo Y, Guo Y, Guan H, Wang D. Perfluorodecanoic acid promotes high-fat diet-triggered adiposity and hepatic lipid accumulation by modulating the NLRP3/caspase-1 pathway in male C57BL/6J mice. Food Chem Toxicol 2023; 178:113943. [PMID: 37451596 DOI: 10.1016/j.fct.2023.113943] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 06/07/2023] [Accepted: 07/11/2023] [Indexed: 07/18/2023]
Abstract
Perfluorodecanoic acid (PFDA), a chemical contaminant, may casue became obesity, which makes it a public health concern. In this study, we investigated the effects of PFDA on adiposity development and hepatic lipid accumulation in mice fed with a high-fat diet (HFD). Animals were assigned to two diet treatments (low-fat and high-fat); and PFDA was administered through drinking water for 12 weeks. The contaminant promoted body weight gain and adiposity in HFD-fed mice. Moreover, HFD-fed mice exposed to PFDA had impaired glucose metabolism, inflammation and hepatic lipid accumulation compared to mice fed HFD alone. PFDA activated the expression of hepatic NLRP3 and caspase-1, and induced that of SREBP-1c expression in the liver of HFD-fed mice. PFDA exposure in HFD-fed mice significantly inhibited hepatic AMPK expression than animals fed HFD without PFDA exposure. Furthermore, MCC950, an NLRP3 inhibitor, suppressed the upregulation of NLRP3 and caspase-1 expression, and inhibited the expression of SREBP-1c and the accumulation of hepatic lipid in mice exposed to PFDA. Thus, PFDA may enhance HFD-induced adiposity and hepatic lipid accumulation through the NLRP3/caspase-1 pathway. This contaminant may be a key risk factor for obesity development in individuals consuming high-fat foods, particularly Western diet.
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Affiliation(s)
- Taotao Wang
- Department of Clinical Nutrition, Affiliated Hospital of Jiangsu University, 212000, Zhenjiang, China
| | - Hong Xu
- School of Grain Science and Technology, Jiangsu University of Science and Technology, 212100, Zhenjiang, China
| | - Yu Guo
- School of Grain Science and Technology, Jiangsu University of Science and Technology, 212100, Zhenjiang, China
| | - Yuanxin Guo
- School of Grain Science and Technology, Jiangsu University of Science and Technology, 212100, Zhenjiang, China
| | - Huanan Guan
- School of Grain Science and Technology, Jiangsu University of Science and Technology, 212100, Zhenjiang, China.
| | - Dongxu Wang
- School of Grain Science and Technology, Jiangsu University of Science and Technology, 212100, Zhenjiang, China.
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Gundacker C, Audouze K, Widhalm R, Granitzer S, Forsthuber M, Jornod F, Wielsøe M, Long M, Halldórsson TI, Uhl M, Bonefeld-Jørgensen EC. Reduced Birth Weight and Exposure to Per- and Polyfluoroalkyl Substances: A Review of Possible Underlying Mechanisms Using the AOP-HelpFinder. TOXICS 2022; 10:toxics10110684. [PMID: 36422892 PMCID: PMC9699222 DOI: 10.3390/toxics10110684] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/04/2022] [Accepted: 11/07/2022] [Indexed: 05/14/2023]
Abstract
Prenatal exposure to per- and polyfluorinated substances (PFAS) may impair fetal growth. Our knowledge of the underlying mechanisms is incomplete. We used the Adverse Outcome Pathway (AOP)-helpFinder tool to search PubMed for studies published until March 2021 that examined PFAS exposure in relation to birth weight, oxidative stress, hormones/hormone receptors, or growth signaling pathways. Of these 1880 articles, 106 experimental studies remained after abstract screening. One clear finding is that PFAS are associated with oxidative stress in in vivo animal studies and in vitro studies. It appears that PFAS-induced reactive-oxygen species (ROS) generation triggers increased peroxisome proliferator-activated receptor (PPAR)γ expression and activation of growth signaling pathways, leading to hyperdifferentiation of pre-adipocytes. Fewer proliferating pre-adipocytes result in lower adipose tissue weight and in this way may reduce birth weight. PFAS may also impair fetal growth through endocrine effects. Estrogenic effects have been noted in in vivo and in vitro studies. Overall, data suggest thyroid-damaging effects of PFAS affecting thyroid hormones, thyroid hormone gene expression, and histology that are associated in animal studies with decreased body and organ weight. The effects of PFAS on the complex relationships between oxidative stress, endocrine system function, adipogenesis, and fetal growth should be further explored.
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Affiliation(s)
- Claudia Gundacker
- Institute of Medical Genetics, Medical University of Vienna, 1090 Vienna, Austria
- Correspondence: ; Tel.: +43-1-40160-56503
| | - Karine Audouze
- Unit T3S, Université Paris Cité, Inserm U1124, 75006 Paris, France
| | - Raimund Widhalm
- Institute of Medical Genetics, Medical University of Vienna, 1090 Vienna, Austria
| | - Sebastian Granitzer
- Institute of Medical Genetics, Medical University of Vienna, 1090 Vienna, Austria
| | - Martin Forsthuber
- Institute of Medical Genetics, Medical University of Vienna, 1090 Vienna, Austria
| | - Florence Jornod
- Unit T3S, Université Paris Cité, Inserm U1124, 75006 Paris, France
| | - Maria Wielsøe
- Department of Public Health, Aarhus University, 8000 Aarhus, Denmark
| | - Manhai Long
- Department of Public Health, Aarhus University, 8000 Aarhus, Denmark
| | - Thórhallur Ingi Halldórsson
- Faculty of Food Science and Nutrition, University of Iceland, 102 Reykjavík, Iceland
- Department of Epidemiology Research, Statens Serum Institut, 2300 Copenhagen, Denmark
| | - Maria Uhl
- Environment Agency Austria, 1090 Vienna, Austria
| | - Eva Cecilie Bonefeld-Jørgensen
- Department of Public Health, Aarhus University, 8000 Aarhus, Denmark
- Greenland Center for Health Research, Greenland University, Nuuk 3905, Greenland
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Li K, Zhao Q, Fan Z, Jia S, Liu Q, Liu F, Liu S. The toxicity of perfluorodecanoic acid is mainly manifested as a deflected immune function. Mol Biol Rep 2022; 49:4365-4376. [PMID: 35233679 DOI: 10.1007/s11033-022-07272-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 02/15/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND Perfluorodecanoic acid (PFDA) is a type of perfluoroalkyl acid (PFAA). PFDA has toxicity similar to dioxin; its effect on the body is not through a single target or a single pathway. However, the mechanism at the global level is still unclear. METHODS AND RESULTS We treated mice with PFDA and characterized the global changes in gene expression in the liver using microarray analyses. The enriched KEGG pathways and GO analyses revealed that PFDA greatly affected the immune response, which was different from the response of gastric cells previously studied. As a proof of principle, the expressions of IL-1β and IL-18 were both decreased after PFDA treatment, and qRT-PCR and ELISAs verified the reduction of IL-1β and IL-18 in liver tissues. Mechanistic investigations indicated that PFDA inhibited caspase-1 activation, and decreased the mRNA levels of NLRP1, NLRP3, and NLRC4; thus, suggesting that inflammasome assemblies were suppressed. Further microarray data revealed that cIAP2 and its binding proteins, which are critical for regulating inflammasome assembly, were also repressed by PFDA. In addition, flow cytometry results revealed a significant inhibition of Th1 cell differentiation in the livers of PFDA-treated mice. CONCLUSIONS The results of this study suggested that one of the main toxic effects of PFDA on livers was the inhibition of immune response.
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Affiliation(s)
- Keming Li
- Department of Medical Microbiology, School of Basic Medical Science & Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
- Shandong Academy of Chinese Medicine, No. 7 Yanzishanxi Road, Jinan, 250013, Shandong, China
| | - Qian Zhao
- Department of Medical Microbiology, School of Basic Medical Science & Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
| | - Ziyan Fan
- China National Tobacco Quality Supervision and Test Center, Zhengzhou, 450001, Henan, China
| | - Shouyin Jia
- Department of Medical Microbiology, School of Basic Medical Science & Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
| | - Qing Liu
- Shandong Provincial Hospital affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China
| | - Fengyan Liu
- The Second Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Shili Liu
- Department of Medical Microbiology, School of Basic Medical Science & Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China.
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Wu W, Li WX, Huang CH. Phospholipase A 2, a nonnegligible enzyme superfamily in gastrointestinal diseases. Biochimie 2021; 194:79-95. [PMID: 34974145 DOI: 10.1016/j.biochi.2021.12.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Revised: 12/25/2021] [Accepted: 12/28/2021] [Indexed: 11/16/2022]
Abstract
Gastrointestinal tract is important for digestion, absorption, detoxification and immunity. Gastrointestinal diseases are mainly caused by the imbalance of protective and attacking factors in gastrointestinal mucosa, which can seriously harm human health. Phospholipase A2 (PLA2) is a large family closely involved in lipid metabolism and is found in almost all human cells. A growing number of studies have revealed that its metabolites are deeply implicated in various inflammatory pathways and also regulates the maintenance of numerous biological events such as dietary digestion, membrane remodeling, barrier action, and host immunity. In addition to their phospholipase activity, some members of the superfamily also have other catalytic activities. Based on the in-depth effects of phospholipase A2 on bioactive lipid metabolism and inflammatory cytokines, PLA2 and its metabolites are likely to be involved in the pathogenesis, development or prevention of gastrointestinal diseases. Therefore, this review will focus on the physiological and pathogenic roles of several important PLA2 enzymes in the gastrointestinal tract, and reveals the potential of PLA2 as a therapeutic target for gastrointestinal diseases.
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Affiliation(s)
- Wei Wu
- Queen Mary School, Medical Department, Nanchang University, Nanchang, Jiangxi, China
| | - Wen-Xuan Li
- Queen Mary School, Medical Department, Nanchang University, Nanchang, Jiangxi, China
| | - Chun-Hong Huang
- School of Basic Medical Sciences, 330006, Nanchang University, Nanchang, Jiangxi, China.
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罗 新, 赵 璇, 任 琳, 王 文, 雍 莉, 袁 悦, 曾 红, 邹 晓. [Study on the Analytical Method of Solid Phase Extraction-Ultra Performance Liquid Chromatography Tandem Quadrupole Linear Ion Trap Mass Spectrometry for 12 Perfluorinated Compounds in Human Urine]. SICHUAN DA XUE XUE BAO. YI XUE BAN = JOURNAL OF SICHUAN UNIVERSITY. MEDICAL SCIENCE EDITION 2021; 52:679-685. [PMID: 34323049 PMCID: PMC10409396 DOI: 10.12182/20210760504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Indexed: 11/23/2022]
Abstract
OBJECTIVE To establish a method for simultaneous determination of 12 kinds of perfluorinated compounds (PFCs) in human urine based on ultra performance liquid chromatography tandem quadrupole linear ion trap mass spectrometry (UPLC-QTtrap-MS). METHODS After pH adjustment with 2% formic acid, the urine samples were loaded on a WAX solid phase extraction (SPE) cartridge for extraction, purification and concentration. The eluates were collected, concentrated to dryness under nitrogen, and reconstituted with 10 mmol/L ammonium acetate aqueous solution-methanol ( V water∶ V methanol = 70∶30) before injection. UPLC was performed on a C 18 cartridge, and methanol and 10 mmol/L ammonium acetate aqueous solution was used as mobile phases with gradient elution. QTtrap-MS was operated in multiple reaction monitoring (MRM) mode, and the internal standard calibration curves were applied for quantitative analysis. RESULTS Good linearity was obtained in the linear range, with the method detection limits and method quantification limits being 0.032 ng/L-6.5 ng/L and 0.10 ng/L-21 ng/L, respectively, for the 12 kinds of PFCs. The spiked recoveries of the 12 kinds of PFCs were 91.5%-114%, with the intra-day precision and the inter-day precision being 0.57%-16.0% and 1.88%-20.1%, respectively. The established method was applied to the determination of 12 kinds of PFCs in the urine samples of primary school students collected in one area. Nine kinds of PFCs were detected in the urine samples in this area. Among the PFCs detected, perfluorobutanesulfonic acid (PFBS) and perfluorooctanoic acid (PFOA) were the main PFCs found in the student urine samples. CONCLUSION The method established in this study could be used to simultaneously examine 12 kinds of PFCs in urine. The method combined SPE with isotope internal standard correction and achieved good sensitivity and accuracy.
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Affiliation(s)
- 新月 罗
- 四川大学华西公共卫生学院/四川大学华西第四医院 卫生检验与检疫系 (成都 610041)Department of Laboratory Technology and Science of Public Health, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - 璇 赵
- 四川大学华西公共卫生学院/四川大学华西第四医院 卫生检验与检疫系 (成都 610041)Department of Laboratory Technology and Science of Public Health, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - 琳 任
- 四川大学华西公共卫生学院/四川大学华西第四医院 卫生检验与检疫系 (成都 610041)Department of Laboratory Technology and Science of Public Health, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - 文佳 王
- 四川大学华西公共卫生学院/四川大学华西第四医院 卫生检验与检疫系 (成都 610041)Department of Laboratory Technology and Science of Public Health, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - 莉 雍
- 四川大学华西公共卫生学院/四川大学华西第四医院 卫生检验与检疫系 (成都 610041)Department of Laboratory Technology and Science of Public Health, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - 悦 袁
- 四川大学华西公共卫生学院/四川大学华西第四医院 卫生检验与检疫系 (成都 610041)Department of Laboratory Technology and Science of Public Health, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - 红燕 曾
- 四川大学华西公共卫生学院/四川大学华西第四医院 卫生检验与检疫系 (成都 610041)Department of Laboratory Technology and Science of Public Health, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - 晓莉 邹
- 四川大学华西公共卫生学院/四川大学华西第四医院 卫生检验与检疫系 (成都 610041)Department of Laboratory Technology and Science of Public Health, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
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Yu M, Guan Z, Li S, Wen X, Shi H, Qu G, Lu X, Zhu X, Wang B, Feng Q, Gan W, Zhang A. Gene expression profiling analysis reveals that the long non‑coding RNA uc.412 is involved in mesangial cell proliferation. Mol Med Rep 2019; 20:5297-5303. [PMID: 31638227 PMCID: PMC6856558 DOI: 10.3892/mmr.2019.10753] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Accepted: 08/08/2019] [Indexed: 02/01/2023] Open
Abstract
Hyperproliferation of mesangial cells (MCs) is the central pathological feature observed in certain human renal diseases. Furthermore, the long non-coding RNA uc.412 is regulated by transforming growth factor β1 in mesangial cells in vitro. The present study aimed to investigate whether uc.412 serves a role in renal fibrosis and whether it may be considered as a therapeutic target in mesangial proliferative kidney diseases. The results demonstrated that uc.412 overexpression significantly increased MC proliferation. The transcriptional profile of MCs overexpressing uc.412 was assessed by RNA sequencing. A total of 462 up- and 843 downregulated genes were identified (|fold change| ≥1.5), and reverse transcription-quantitative PCR was used to determine the expression of these differentially expressed genes (DEGs). Subsequently, the potential function of these DEGs was determined by bioinformatics analyses. The results indicated that these DEGs were involved in numerous signaling pathways associated with MC proliferation. The downstream association between up- and downregulated genes was constructed via the STRING database. The protein-protein interaction network indicated that serpin family E member 1 and matrix metallopeptidase 3 may be hub proteins. In conclusion, the present study provided novel insight into the role of uc.412 in MC proliferation, which may aid in the development of novel treatment for mesangial proliferative kidney diseases.
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Affiliation(s)
- Minyi Yu
- Department of Pediatric Nephrology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210003, P.R. China
| | - Zheng Guan
- Department of Pediatric Nephrology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210003, P.R. China
| | - Shanwen Li
- Department of Pediatric Nephrology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210003, P.R. China
| | - Xianli Wen
- Department of Pediatric Nephrology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210003, P.R. China
| | - Huimin Shi
- Department of Pediatric Nephrology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210003, P.R. China
| | - Gaoting Qu
- Department of Pediatric Nephrology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210003, P.R. China
| | - Xiaoyu Lu
- Department of Pediatric Nephrology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210003, P.R. China
| | - Xianyi Zhu
- Department of Pediatric Nephrology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210003, P.R. China
| | - Bin Wang
- Institute of Nephrology, Zhong Da Hospital, Southeast University, Nanjing, Jiangsu 210000, P.R. China
| | - Qihua Feng
- Department of Rheumatology, Children's Hospital of Soochow University, Suzhou, Jiangsu 215000, P.R. China
| | - Weihua Gan
- Department of Pediatric Nephrology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210003, P.R. China
| | - Aiqing Zhang
- Department of Pediatric Nephrology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210003, P.R. China
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Wang D, Gao Q, Wang T, Kan Z, Li X, Hu L, Peng CY, Qian F, Wang Y, Granato D. Green tea polyphenols and epigallocatechin-3-gallate protect against perfluorodecanoic acid induced liver damage and inflammation in mice by inhibiting NLRP3 inflammasome activation. Food Res Int 2019; 127:108628. [PMID: 31882076 DOI: 10.1016/j.foodres.2019.108628] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 08/02/2019] [Accepted: 08/17/2019] [Indexed: 12/11/2022]
Abstract
Perfluorodecanoic acid (PFDA) is a highly toxic food contaminant that is extensively used in food applications as surface antifouling agent. In this present study, we aimed to assess whether green tea polyphenols (GTPs) and epigallocatechin-3-gallate (EGCG) exert protective effects against PFDA-induced liver damage and inflammation in mice. A mouse model to evaluate liver toxicity was established by giving mice drinking water containing different concentrations of PFDA. GTPs or EGCG (0.32%, w/v) were co-administered to mice exposed to PFDA in drinking water. Overall, GTPs and EGCG extended the survival time and inhibited weight loss among mice who received a lower dose of PFDA. Moreover, GTPs and EGCG ameliorated hepatic oxidative stress, cell apoptosis, necrosis, steatosis, edema, and degeneration, reduced hepatic inflammation and NLRP3 inflammasome activation caused by a moderate dose of PFDA. Taken together, these results show that GTPs or EGCG (or green tea intake) supplements can be beneficial for people exposed to PFDA.
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Affiliation(s)
- Dongxu Wang
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China
| | - Qiang Gao
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China
| | - Taotao Wang
- Department of Clinical Nutrition, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212000, PR China
| | - Zhipeng Kan
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China
| | - Xin Li
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China
| | - Lizhen Hu
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China
| | - Chuan-Yi Peng
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China
| | - Frank Qian
- Pritzker School of Medicine, University of Chicago, Chicago, IL 60637, USA
| | - Yijun Wang
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China.
| | - Daniel Granato
- Food Processing and Quality, Production Systems Unit, Natural Resources Institute Finland, Luke, Maarintie 6, Open Innovation House, FI-02150 Espoo, Finland.
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12
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Wiener RC, Waters C. Perfluoroalkyls/polyfluoroalkyl substances and dental caries experience in children, ages 3-11 years, National Health and Nutrition Examination Survey, 2013-2014. J Public Health Dent 2019; 79:307-319. [PMID: 31286520 DOI: 10.1111/jphd.12329] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 05/17/2019] [Accepted: 06/11/2019] [Indexed: 02/05/2023]
Abstract
OBJECTIVE The objective of this research is to determine the association of seven perfluoroalkyl and polyfluoroalkyl substances versus dental caries experience in US children, ages 3-11 years. METHODS A cross-sectional study design was used in the analysis of National Health and Nutrition Examination Survey 2013-2014 serological data of perfluoroalkyl and polyfluoroalkyl substances. The seven perfluoroalkyl and polyfluoroalkyl substances were: 2-(N-methyl-perfluorooctane sulfonamide) acetic acid; perfluorodecanoic acid; perfluorononanoic acid; perfluorohexane sulfonic acid; linear isomers of perfluorooctanoate; linear perfluorooctane sulfonate; and monomethyl branched isomers of perfluorooctane sulfonate. Two summative variables were created: monomethyl branch isomers of perfluorooctane sulfonic acid with linear isomer of perfluorooctane and branch isomers of perfluorooctanoate with linear isomer perfluorooctonate. RESULTS In unadjusted logistic regression, in which the comparison was between the less than 75th percentile reference group and the 75th and above percentile group, higher perfluorodecanoic acid was associated with dental caries experience [unadjusted odds ratio: 1.79 (95% CI: 1.19, 2.46; P = 0.0069); adjusted odds ratio: 1.54 (95% CI: 1.03, 2.30; P = 0.0385)]. CONCLUSIONS Of the seven examined perfluoroalkyl and polyfluoroalkyl substances, only perfluorodecanoic acid had an association with dental caries experience in an unadjusted model and adjusted logistic regression model.
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Affiliation(s)
- R Constance Wiener
- Dental Practice and Rural Health, West Virginia University, Morgantown, WV, USA
| | - Christopher Waters
- Department of Dental Research, West Virginia University, Morgantown, WV, USA
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Gao S, Cao Z, Niu Q, Zong W, Liu R. Probing the toxicity of long-chain fluorinated surfactants: Interaction mechanism between perfluorodecanoic acid and lysozyme. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.04.134] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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14
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Liu F, Fan Z, Song N, Han M, Yan M, Guo LH, Jihui J, Liu S. XRCC4, which is inhibited by PFDA, regulates DNA damage repair and cell chemosensitivity. J Cell Biochem 2019; 120:12665-12676. [PMID: 30834581 DOI: 10.1002/jcb.28534] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 01/17/2019] [Accepted: 01/24/2019] [Indexed: 12/27/2022]
Abstract
The mechanism of environmental pollution promoting gastric cancer incidence and difficulty of treatment is not fully understood. In the present article, perfluorodecanoic acid (PFDA), a common persistent environmental pollutant, was used to treat the gastric cell lines and mice to test its genotoxicity. The γ-H2AX immunoblot and plasmid fragment PCR results showed that PFDA had a promotion effect on the DNA double-strand breaks (DSBs) in human and mouse cells. Subsequent results showed that PFDA significantly altered the sensitivity of cells to chemotherapy. Microarray data showed that the expressions of some important DNA repair genes were changed. Further investigation discovered that PFDA inhibition of DNA repair was mediated by X-ray repair cross complementing 4 (XRCC4). The cells deficient in XRCC4 generally exhibited reduced proliferation and premature aging in culture; however, our results indicated that PFDA induced p53 inhibition rescued cells from the apoptosis that was triggered by nonhomologous end-joining (NHEJ) inactivation, and overexpression of p53 expression in PFDA-treated cells enhanced their apoptosis. Finally, T-cell specific factor 4 was suggested by the results as an upstream regulator of XRCC4. This article revealed for the first time that perfluorinated chemicals affect chemotherapeutic sensitivity and the NHEJ pathway, and p53 reduction rescues cells from death.
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Affiliation(s)
- Fengyan Liu
- Department of Medical Microbiology, School of Basic Medical Science, Shandong University, Jinan, Shandong, China.,Department of Hepatology and Gastroenterology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Ziyan Fan
- China National Tobacco Quality Supervision & Test Center, Zhengzhou, Henan, China
| | - Ning Song
- Department of Medical Microbiology, School of Basic Medical Science, Shandong University, Jinan, Shandong, China
| | - Mingyong Han
- Department of Medical Microbiology, School of Basic Medical Science, Shandong University, Jinan, Shandong, China.,Cancer Therapy and Research Center, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China
| | - Ming Yan
- Department of Hepatology and Gastroenterology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Liang-Hong Guo
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
| | - Jia Jihui
- Department of Medical Microbiology, School of Basic Medical Science, Shandong University, Jinan, Shandong, China
| | - Shili Liu
- Department of Medical Microbiology, School of Basic Medical Science, Shandong University, Jinan, Shandong, China
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15
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Gao S, Liu R. Comprehensive insights into the interaction mechanism between perfluorodecanoic acid and human serum albumin. NEW J CHEM 2018. [DOI: 10.1039/c8nj00124c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this investigation, we explored the toxic effects of perfluorodecanoic acid (PFDA) on human serum albumin (HSA), established the interaction mode of PFDA with HSA, and provided a new strategy for the evaluation of toxicity of PFDA on functional proteins.
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Affiliation(s)
- Sichen Gao
- School of Environmental Science and Engineering
- Shandong University
- Shandong Province
- Jinan 250100
- China
| | - Rutao Liu
- School of Environmental Science and Engineering
- Shandong University
- Shandong Province
- Jinan 250100
- China
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