PREDICTION OF LIPOTOXICITY OF POLYFLUOROALKYL PHOSPHATE DIESTERS TO ZEBRAFISH BASED ON 3D-QSAR
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摘要: 为研究多氟烷基磷酸二酯(DiPAPs)对斑马鱼的脂毒性作用,构建15种全氟化合物与过氧化物酶体增殖物激活受体β(PPARβ)结合的三维定量构效关系模型(3D-QSAR),分别对6∶2和8∶2的DiPAPs与PPARβ结合亲和力进行预测;基于分子对接分别研究6∶2和8∶2 DiPAPs与PPARβ的相互作用;分别考察6∶2和8∶2 DiPAPs暴露对斑马鱼Pparβ表达的影响,对3D-QSAR预测结果进行验证。结果表明,6∶2和8∶2 DiPAPs的半数竞争效应浓度(pIC50)的预测值分别为3.73,3.63 mol/L,说明二者可能均具有过氧化物酶体增殖活性;6∶2和8∶2 DiPAPs主要通过氢键和疏水作用与PPARβ结合,且6∶2 DiPAP结合活性更强;二者分别暴露后,PPARβ表达量均显著上调,且50 ng/L 6∶2 DiPAP组比50 ng/L 8∶2 DiPAP组的表达量更高,与模型预测结果一致。综上,6∶2和8∶2 DiPAPs可通过影响斑马鱼PPARβ的表达,产生脂毒性。研究结果可为评估DiPAPs这类新型全氟/多氟烷基化合物在水环境中的生态风险提供理论依据。
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关键词:
- 多氟烷基磷酸二酯 /
- 三维定量构效关系 /
- 分子对接 /
- 脂毒性 /
- 过氧化物酶体增殖物激活受体
Abstract: To study the lipotoxicity of polyfluoroalkyl phosphate diesters(DiPAPs) to zebrafish, firstly, a three-dimensional quantitative structure-activity relationship(3D-QSAR) model of the binding of 15 perfluoroalkyl and polyfluoroalkyl substances(PFASs) with peroxisome proliferator-activated receptor β(PPARβ) was developed to predict the binding affinity of 6:2 and 8:2 DiPAPs, respectively. Afterward, the interactions between 6:2 and 8:2 DiPAPs and PPARβ were studied based on molecular docking. Finally, to verify the predicted results of the 3D-QSAR model, the effects of 6:2 and 8:2 DiPAPs on the expression of zebrafish PPARβ were investigated. The results show that the 50% inhibition concentration(pIC50) of 6:2 and 8:2 DiPAPs was 3.73 mol/L and 3.63 mol/L, respectively, indicating their potential peroxisome proliferation activities. 6:2 and 8:2 DiPAPs could bind to PPARβ mainly through hydrogen bonding and hydrophobic interaction, and the binding activity of 6:2 DiPAP was higher than that of 8:2 DiPAP. After the exposure to 6:2 and 8:2 DiPAPs, the expressions of PPARβ were both significantly up-regulated. The expression in the 50 ng/L 6:2 DiPAP group was significantly higher than that in the 50 ng/L 8:2 DiPAP group, which was concordant with the predicted results by the 3D-QSAR model. In conclusion, 6:2 and 8:2 DiPAPs could induce lipotoxicity by affecting the expressions of zebrafish PPARβ. This study can provide scientific pieces of evidence for risk assessment of DiPAPs, such as a class of emerging PFASs, in the aquatic environment. -
[1] AHRENS L,BENSKIN J P,COUSINS I T,et al.Themed issues on per-and polyfluoroalkyl substances[J].Environmental Science:Water Research & Technology,2019,5:1808-1813. [2] DU D,LU Y L,ZHOU Y Q,et al.Perfluoroalkyl acids (PFAAs) in water along the entire coastal line of China:spatial distribution,mass loadings,and worldwide comparisons[J].Environment International,2022,169:107506. [3] SADIA M,NOLLEN I,HELMUS R,et al.Occurrence,fate,and related health risks of PFAS in raw and produced drinking water[J].Environmental Science & Technology,2023,57:3062-3074. [4] HOU M M,JIN Q,NA G S,et al.Emissions,isomer-specific environmental behavior,and transformation of OBS from one major fluorochemical manufacturing facility in China[J].Environmental Science & Technology,2022,56:8103-8113. [5] SHEN L A,ZHOU J,LIANG X X,et al.Different sources,fractionation,and migration of legacy and novel per-and polyfluoroalkyl substances between greenhouse and open-field soils[J].Environmental Science & Technology,2023,57:1670-1679. [6] XIE X,LU Y,WANG P,et al.Per-and polyfluoroalkyl substances in marine organisms along the coast of China[J].Science of the Total Environment,2023,876:162492. [7] CHEN Y,LV J,FU L,et al.Metabolome-wide association study of four groups of persistent organic pollutants and abnormal blood lipids[J].Environment International,2023,173:107817. [8] WANG B,YAO Y M,WANG Y,et al.Per-and polyfluoroalkyl substances in outdoor and indoor dust from mainland China:contributions of unknown precursors and implications for human exposure[J].Environmental Science & Technology,2022,56:6036-6045. [9] BUGSEL B,ZWIENER C.LC-MS screening of poly-and perfluoroalkyl substances in contaminated soil by Kendrick mass analysis[J].Analytical and Bioanalytical Chemistry,2020,412:4797-4805. [10] SZABO D,MARCHIANDI J,SAMANDRA S,et al.High-resolution temporal wastewater treatment plant investigation to understand influent mass flux of per-and polyfluoroalkyl substances (PFAS)[J].Journal of Hazardous Materials,2023,447:130854. [11] CHEN M,WANG Q,SHAN G Q,et al.Occurrence,partitioning and bioaccumulation of emerging and legacy per-and polyfluoroalkyl substances in Taihu Lake,China[J].Science of the Total Environment,2018,634:251-259. [12] ROSENMAI A K,NIELSEN F K,PEDERSEN M,et al.Fluorochemicals used in food packaging inhibit male sex hormone synthesis[J].Toxicology and Applied Pharmacology,2013,266:132-142. [13] CHEN P Y,WANG R H,YANG J,et al.Stronger estrogenic and antiandrogenic effects on zebrafish larvae displayed by 6∶2 polyfluoroalkyl phosphate diester than the 8∶2 congener at environmentally relevant concentrations[J].Science of the Total Environment,2019,695:133907. [14] CHEN P Y,YANG J,CHEN G,et al.Thyroid-disrupting effects of 6∶2 and 8∶2 polyfluoroalkyl phosphate diester (diPAPs) at environmentally relevant concentrations from integrated in silico and in vivo studies[J].Environmental Science & Technology Letters,2020,7:330-336. [15] LI C H,REN X M,CAO L Y,et al.Investigation of binding and activity of perfluoroalkyl substances to the human peroxisome proliferator-activated receptor beta/delta[J].Environmental Science:Processes & Impacts,2019,21:1908-1914. [16] REN X M,QIN W P,CAO L Y,et al.Binding interactions of perfluoroalkyl substances with thyroid hormone transport proteins and potential toxicological implications[J].Toxicology,2016,366:32-42. [17] LUCKHURST C A,STEIN L A,FURBER M,et al.Discovery of isoindoline and tetrahydroisoquinoline derivatives as potent,selective PPAR delta agonists[J].Bioorganic & Medicinal Chemistry Letters,2011,21:492-496. [18] ISO 7346-2,1996.Water quality-Determination of the acute lethal toxicity of substances to a fresh water fish [Brachydanio rerio namilton-Buchanan (Teleostei,Cyprinidae)]-Semi-static method[S]. [19] GOLBRAIKH A,SHEN M,XIAO Z Y,et al.Rational selection of training and test sets for the development of validated QSAR models[J].Journal of Computer-Aided Molecular Design,2003,17:241-253. [20] CRAMER R D,PATTERSON D E,BUNCE J D.Comparative molecular field analysis (CoMFA).1.Effect of shape on binding of steroids to carrier proteins.Journal of the American Chemical Society,1988,110:5959-5967. [21] KLEBE G,ABRAHAM U,MIETZNER T.Molecular similarity indices in a comparative analysis (CoMSIA) of drug molecules to correlate and predict their biological activity[J].Journal of Medicinal Chemistry,1994,37:4130-4146. [22] CAPPEL D,DIXON S L,SHERMAN W,et al.Exploring conformational search protocols for ligand-based virtual screening and 3-D QSAR modeling[J].Journal of Computer-Aided Molecular Design,2015,29:165-182. [23] GADE D R,MAKKAPATI A,YARLAGADDA R B,et al.Elucidation of chemosensitization effect of acridones in cancer cell lines:combined pharmacophore modeling,3D QSAR,and molecular dynamics studies[J].Computational Biology and Chemistry,2018,74:63-75. [24] YANG X H,OU W,XI Y,et al.Emerging polar phenolic disinfection byproducts are high-affinity human transthyretin disruptors:an in vitro and in silico Study[J].Environmental Science & Technology,2019,53:7019-7028. [25] CAO H M,ZHOU Z,WANG L,et al.Screening of potential PFOS alternatives to decrease liver bioaccumulation:experimental and computational approaches[J].Environmental Science & Technology,2019,53:2811-2819. [26] REN J Z,JI X,GAO W,et al.3D-QSAR-based molecular design to discover ultrahigh active N-phenylpyrazoles as insecticide candidates[J].Journal of Agricultural and Food Chemistry,2023,71:4258-4271. [27] PU Q K,HAN Z Z,LI X A,et al.Designing and screening of fluoroquinolone substitutes using combined in silico approaches:biological metabolism-bioconcentration bilateral selection and their mechanism analyses[J].Green Chemistry,2022,24:3778-3793. [28] CHEN QC,TAN HY,YU HX,et al.Activation of steroid hormone receptors:shed light on the in silico evaluation of endocrine disrupting chemicals[J].Science of the Total Environment,2018,631/632:27-39. [29] 谭皓月,张荣,陈钦畅,等.基于计算毒理的环境污染物-生物大分子的相互作用研究[J].科学通报,2022,67:4180-4191. [30] Kortagere S,Krasowski M D,Reschly E J,et al.Evaluation of computational docking to identify pregnane x receptor agonists in the ToxCast database[J].Environ Health Perspect,2010,118:1412-1417. [31] CHEN P Y,WANG Q,CHEN M,et al.Antagonistic estrogenic effects displayed by bisphenol AF and perfluorooctanoic acid on zebrafish (Danio rerio) at an early developmental stage[J].Environmental Science & Technology Letters,2018,5:655-661. [32] SODERSTROM S,LILLE-LANGOY R,YADETIE F,et al.Agonistic and potentiating effects of perfluoroalkyl substances (PFAS) on the Atlantic cod (Gadus morhua) peroxisome proliferator-activated receptors (Ppars)[J].Environment International,2022,163:107203. [33] ALLEN T E H,GOODMAN J M,GUTSELL S,et al.Using 2D structural alerts to define chemical categories for molecular initiating events[J].Toxicological Sciences,2018,165:213-223. [34] YI S J,CHEN P Y,YANG L P,et al.Probing the hepatotoxicity mechanisms of novel chlorinated polyfluoroalkyl sulfonates to zebrafish larvae:implication of structural specificity[J].Environment International,2019,133:105262. [35] KHAZAEE M,CHRISTIE E,CHENG W X,et al.Perfluoroalkyl acid binding with peroxisome proliferator-activated receptors alpha,gamma,and delta,and fatty acid binding proteins by equilibrium dialysis with a comparison of methods[J].Toxics,2021,9:45. [36] POULSEN L L,SIERSBK M,MANDRUP S.PPARs:fatty acid sensors controlling metabolism[J].Seminars in Cell & Developmental Biology,2012,23:631-639. [37] SUN W Q,ZHANG X M,QIAO Y,et al.Exposure to PFOA and its novel analogs disrupts lipid metabolism in zebrafish[J].Ecotoxicology and Environmental Safety,2023,259:115020. [38] WANG Z R,YAO J Z,GUO H,et al.Comparative hepatotoxicity of a novel perfluoroalkyl ether sulfonic acid,Nafion byproduct 2 (H-PFMO2OSA),and legacy perfluorooctane sulfonate (PFOS) in adult male mice[J].Environmental Science & Technology,2022,56:10183-10192. [39] WANG Z R,ZANG L,REN W L,et al.Bile acid metabolism disorder mediates hepatotoxicity of Nafion by-product 2 and perfluorooctane sulfonate in male PPARα-KO mice[J].Science of the Total Environment,2023,876:162579.
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