1
|
Mohammadi MA, Shareghi B, Farhadian S, Uversky VN. Investigating the effect of pH on the interaction of cypermethrin with human serum albumin: Insights from spectroscopic and molecular dynamics simulation studies. Int J Biol Macromol 2024; 257:128459. [PMID: 38035951 DOI: 10.1016/j.ijbiomac.2023.128459] [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: 10/09/2023] [Revised: 11/17/2023] [Accepted: 11/25/2023] [Indexed: 12/02/2023]
Abstract
To efficiently combat the negative consequences of the utilization of pesticides and hazardous substances with biomolecules, it is crucial to comprehend the features of the corresponding compounds. In this study, interactions between cypermethrin (CYP) and HSA at neutral and acidic pH were investigated using a set of spectroscopic and computational tools, such as UV/VIS's absorption spectroscopy, fluorescence, Fourier-transform infrared (FTIR) spectroscopy, molecular docking, and molecular dynamics. Furthermore, the effect of CYP on the HSA thermal stability was investigated. The increase in the CYP concentration at acidic and neutral pH resulted in static HSA fluorescence quenching. In the interaction between HSA and CYP at both pH, increasing the temperature led to a decrease in the Stern-Volmer quenching constant and the binding constant. We also revealed that with increasing CYP concentration, the melting temperature of HSA increases at both pH values.
Collapse
Affiliation(s)
- Mohammad Ali Mohammadi
- Department of Biology, Faculty of Science, Shahr-e Kord University, Shahr-e Kord, P. O. Box.115, Iran
| | - Behzad Shareghi
- Department of Biology, Faculty of Science, Shahr-e Kord University, Shahr-e Kord, P. O. Box.115, Iran.
| | - Sadegh Farhadian
- Department of Biology, Faculty of Science, Shahr-e Kord University, Shahr-e Kord, P. O. Box.115, Iran
| | - Vladimir N Uversky
- Department of Molecular Medicine and USF Health Byrd Alzheimer's Research Institute, Morsani College of Medicine, University of South Florida, Tampa, FL, USA
| |
Collapse
|
2
|
An J, Yi Y, Jiang J, Yao W, Ren G, Shang Y. Metabolic disturbance and transcriptomic changes induced by methyl triclosan in human hepatocyte L02 cells. Toxicol Res (Camb) 2023; 12:863-872. [PMID: 37915488 PMCID: PMC10615820 DOI: 10.1093/toxres/tfad077] [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: 01/04/2023] [Revised: 07/10/2023] [Accepted: 08/28/2023] [Indexed: 11/03/2023] Open
Abstract
PURPOSE Methyl triclosan (MTCS) is one of the biomethylated by-products of triclosan (TCS). With the increasing use of TCS, the adverse effects of MTCS have attracted extensive attention in recent years. The purpose of this study was to investigate the cytotoxicity of MTCS and to explore the underlining mechanism using human hepatocyte L02 cells as in vitro model. RESULTS The cytotoxicity results revealed that MTCS could inhibit cell viability, disturb the ratio of reduced glutathione (GSH) and oxidized glutathione (GSSG), and reduce the mitochondrial membrane potential (MMP) in a dose-dependent manner. In addition, MTCS exposure significantly promoted the cellular metabolic process, including enhanced conversion of glucose to lactic acid, and elevated content of intracellular triglyceride (TG) and total cholesterol (TC). RNA-sequencing and bioinformatics analysis indicated disorder of glucose and lipid metabolism was significantly induced after MTCS exposure. Protein-protein interaction network analysis and node identification suggested that Serine hydroxy methyltransferase 2 (SHMT2), Methylenetetrahydrofolate dehydrogenase 2 (MTHFD2), Asparagine synthetase (ASNS) and Phosphoglycerate dehydrogenase (PHGDH) are potential molecular markers of metabolism imbalance induced by MTCS. CONCLUSION These results demonstrated that oxidative stress and metabolism dysregulation might be involved in the cytotoxicity of MTCS in L02 cells.
Collapse
Affiliation(s)
- Jing An
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Nanchen Road 333, Shanghai 200444, PR China
| | - Yuting Yi
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Nanchen Road 333, Shanghai 200444, PR China
| | - Jingjing Jiang
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Nanchen Road 333, Shanghai 200444, PR China
| | - Weiwei Yao
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Nanchen Road 333, Shanghai 200444, PR China
| | - Guofa Ren
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Nanchen Road 333, Shanghai 200444, PR China
| | - Yu Shang
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Nanchen Road 333, Shanghai 200444, PR China
| |
Collapse
|
3
|
Nasab H, Rajabi S, Mirzaee M, Hashemi M. Association of urinary triclosan, methyl triclosan, triclocarban, and 2,4-dichlorophenol levels with anthropometric and demographic parameters in children and adolescents in 2020 (case study: Kerman, Iran). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:30754-30763. [PMID: 34993832 PMCID: PMC8739350 DOI: 10.1007/s11356-021-18466-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 12/29/2021] [Indexed: 05/28/2023]
Abstract
Endocrine-disrupting chemicals (EDCs) can be a major risk factor for noncommunicable illnesses, especially when children are exposed to them. The purpose of this study was to assess the urine concentrations of triclosan (TCS), methyl triclosan (MTCS), triclocarban (TCC), and 2,4-dichlorophenol (2,4-DCP) and its association with anthropometric and demographic parameters in children and adolescents aged 6-18 living in Kerman, Iran, in 2020. A GC/MS instrument was used to measure the concentrations of the analytes. TCS, MTCS, TCC, and 2,4-DCP geometric mean concentrations (µg/L) were 4.32 ± 2.08, 1.73 ± 0.88, 4.66 ± 10.25, and 0.19 ± 0.14, respectively. TCS, MTCS, TCC, and 2,4-DCP were shown to have a positive and significant association with BMI z-score and BMI (p-value < 0.01). TCS and MTCS have a positive, strong, and substantial association (p-value < 0.01, r = 0.74). There was no significant association between the waist circumference (WC) and the analytes studied. In addition, there was a close association between analyte concentration and demographic parameters (smoking, education, income, etc.) overall. In Kerman, Iran, the current study was the first to look into the association between TCS, MTCS, TCC, and 2,4-DCP analytes and anthropometric and demographic data. The levels of urinary TCS, MTCS, TCC, 2,4-DCP, and anthropometric parameters in children and adolescents are shown to have a significant association in this study. However, because the current study is cross-sectional and it is uncertain if a single experiment accurately reflects long-term exposure to these analytes, more research is needed to determine the impact of these analyses on the health of children and adolescents.
Collapse
Affiliation(s)
- Habibeh Nasab
- Environmental Health Engineering Research Center, Kerman University of Medical Sciences, Kerman, Iran
- Department of Environmental Health Engineering, Faculty of Public Health, Kerman University of Medical Sciences, Kerman, Iran
| | - Saeed Rajabi
- Environmental Health Engineering Research Center, Kerman University of Medical Sciences, Kerman, Iran
- Department of Environmental Health Engineering, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Moghaddameh Mirzaee
- Modeling in Health Research Center, Institute for Futures Studies in Health, Kerman University of Medical Sciences, Kerman, Iran
| | - Majid Hashemi
- Environmental Health Engineering Research Center, Kerman University of Medical Sciences, Kerman, Iran.
- Department of Environmental Health Engineering, Faculty of Public Health, Kerman University of Medical Sciences, Kerman, Iran.
| |
Collapse
|
4
|
Fu J, Gong Z, Bae S. Ecotoxicogenomic analysis of zebrafish embryos exposed to triclosan and mixture triclosan and methyl triclosan using suppression subtractive hybridization and next-generation sequencing. JOURNAL OF HAZARDOUS MATERIALS 2021; 414:125450. [PMID: 33676256 DOI: 10.1016/j.jhazmat.2021.125450] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 02/11/2021] [Accepted: 02/12/2021] [Indexed: 06/12/2023]
Abstract
Triclosan (TCS) and methyl-triclosan (MTCS), an environmental transformation product of biocide of TCS, have been detected in water, sediment, fish, and invertebrates. In this study, the key pathway perturbation in zebrafish (Danio rerio) embryos exposed to TCS (300 μg/L) and TCS/MTCS mixture (300 μg/L TCS + 30 μg/L MTCS) was assessed by integrating the metabolomic and transcriptomic dysregulation. The differential expressed genes (DEGs) were obtained from the subtracted cDNA libraries by using the suppression subtractive hybridization and next-generation sequencing approach. The dysregulation of twenty-eight GO terms and four KEGG pathways, including oxidative phosphorylation and cardiac muscle contraction, were shown in the TCS treatment group, indicating that TCS could disrupt the mitochondrial inner membrane function by downshifting the electrochemical gradient. Meanwhile, the addition of MTCS in the exposure would cause fourteen additional significant KEGG pathway changes, demonstrating the different effects between two exposure. A pathway-based analysis using the identified DEGs and the altered metabolites in zebrafish embryos treated with TCS and TCS/MTCS mixture, collectively, has been applied. This study demonstrated that the integration of SSH-NGS and metabolomics could reveal toxic effects and potential diseases associated with the exposures of TCS and MTCS in aquatic environments.
Collapse
Affiliation(s)
- Jing Fu
- Department of Civil and Environmental Engineering, National University of Singapore, Singapore
| | - Zhiyuan Gong
- Department of Biological Sciences, National University of Singapore, Singapore
| | - Sungwoo Bae
- Department of Civil and Environmental Engineering, National University of Singapore, Singapore.
| |
Collapse
|
5
|
Zhang H, Deng H, Wang Y. Comprehensive investigations about the binding interaction of acesulfame with human serum albumin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 237:118410. [PMID: 32361316 DOI: 10.1016/j.saa.2020.118410] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 04/22/2020] [Accepted: 04/22/2020] [Indexed: 06/11/2023]
Abstract
In this work, the binding interaction of an artificial sweetener, acesulfame (ACS) with human serum albumin (HSA) are investigated at the molecular level by using spectral methods and molecular modeling. ACS has the ability to induce static quenching of the intrinsic fluorescence of HSA by a complex formed between HSA and ACS through weak multi-noncovalent forces including hydrophobic, hydrogen bond and van der Waals forces. ACS enters subdomain IIA of HSA to induce the tertiary structure changes of HSA and decreased the hydrophobicity of protein. In addition, ACS binding does not obviously alter the secondary structure of HSA. This study is hoped to provide some crucial information for further investigations of the biosafety of sweetener.
Collapse
Affiliation(s)
- Hongmei Zhang
- School of Chemical and Environmental Engineering, Yancheng Teachers University, Yancheng City, Jiangsu Province 224002, People's Republic of China
| | - Hao Deng
- School of Chemical and Environmental Engineering, Yancheng Teachers University, Yancheng City, Jiangsu Province 224002, People's Republic of China
| | - Yanqing Wang
- School of Chemical and Environmental Engineering, Yancheng Teachers University, Yancheng City, Jiangsu Province 224002, People's Republic of China.
| |
Collapse
|
6
|
Li X, An J, Li H, Qiu X, Wei Y, Shang Y. The methyl-triclosan induced caspase-dependent mitochondrial apoptosis in HepG2 cells mediated through oxidative stress. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 182:109391. [PMID: 31272020 DOI: 10.1016/j.ecoenv.2019.109391] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 06/17/2019] [Accepted: 06/25/2019] [Indexed: 05/06/2023]
Abstract
Methyl-triclosan (MTCS) is a dominant transformation product of triclosan (TCS), which has been widely used as an effective antimicrobial ingredient with increasing concentrations in the environment. MTCS shows higher persistence in environment than its parent chemical TCS. The toxic effects of MTCS and toxicological mechanism are not well understood up to now. This study investigated the cytotoxic effects of MTCS in HepG2 cells in terms of cell viability, apoptosis induction, ROS production, GSH/GSSG levels, Mitochondrial Membrane Potential (MMP) reduction, LDH release, glucose uptake and ATP production. Moreover, the related gene transcripts were measured with RT-qPCR assay. Cytotoxic experiments in HepG2 cells revealed that MTCS exposure at micromol per liter levels had toxic effects as evidenced by decreased cell survival, elevated cell apoptosis, reduced MMP and increased LDH release. These toxic effects were associated with increased ROS production and reduced GSH/GSSG ratio. Meanwhile, elevated glucose uptake and ATP production indicated that MTCS induced membrane damages resulted not from a typical mitochondrial uncoupler, but from oxidative stress. Analysis of gene transcripts showed that MTCS exposure induced mRNA expressions alterations associated with oxidative stress response, energy production, cell cycle regulation and cell apoptosis. In general, the caspase-dependent mitochondrial apoptosis pathway might play a role in MTCS induced cytotoxicity in HepG2 cells.
Collapse
Affiliation(s)
- Xiaoqian Li
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Jing An
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Hui Li
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Xinghua Qiu
- BIC-ESAT and SKL-ESPC, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, China
| | - Yongjie Wei
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China.
| | - Yu Shang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China.
| |
Collapse
|
7
|
Wang L, Wu X, Yang Y, Liu X, Zhu M, Fan S, Wang Z, Xue J, Hua R, Wang Y, Li QX. Multi-spectroscopic measurements, molecular modeling and density functional theory calculations for interactions of 2,7-dibromocarbazole and 3,6-dibromocarbazole with serum albumin. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 686:1039-1048. [PMID: 31200302 DOI: 10.1016/j.scitotenv.2019.06.001] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 05/27/2019] [Accepted: 06/01/2019] [Indexed: 06/09/2023]
Abstract
2,7-Dibromocarbazole (2,7-DBCB) and 3,6-dibromocarbazole (3,6-DBCB) are emerging environmental pollutants, being potentially high risks to human health. In this study, interactions of the two compounds with human serum albumin (HSA) and bovine serum albumin (BSA) were investigated by molecular modeling, density functional theory calculations (DFT) and multispectral techniques. The static quenching interaction deduced in the fluorescence quenching experiment is confirmed by the time-resolved analyses. The interactions of the two compounds with HSA/BSA induce molecular microenvironment and conformation changes, as assessed by synchronous and 3D fluorescence spectra, together with a destruction of polypeptide carbonyl hydrogen bond network by circular dichroism and Fourier transform infrared analyses. The thermodynamic analysis indicated that the spontaneous interaction was hydrogen bonding and hydrophobic forces. The binding constant Ka at 298 K was 3.54 × 105 M-1 in HSA-2,7-DBCB, 6.63 × 105 M-1 in HSA-3,6-DBCB, 1.32 × 105 M-1 in BSA-2,7-DBCB and 2.17 × 105 M-1 in BSA-3,6-DBCB. These results indicates that 3,6-DBCB binds HSA/BSA more strongly than 2,7-DBCB, which was estimated with DFT calculations. Site marker competition experiments coupled with molecular modeling studies confirmed that both compounds bind HSA/BSA at site I (subdomain IIA). The results suggest that interactions between 2,7-DBCB and 3,6-DBCB with HSA and BSA may affect the normal physiological activities in human and animals.
Collapse
Affiliation(s)
- Lijun Wang
- Key Laboratory of Agri-food Safety of Anhui Province, College of Resources and Environment, Anhui Agricultural University, No, 130 Changjiang West Road, Hefei 230036, China
| | - Xiaoqin Wu
- Key Laboratory of Agri-food Safety of Anhui Province, College of Resources and Environment, Anhui Agricultural University, No, 130 Changjiang West Road, Hefei 230036, China
| | - Yanan Yang
- Key Laboratory of Agri-food Safety of Anhui Province, College of Resources and Environment, Anhui Agricultural University, No, 130 Changjiang West Road, Hefei 230036, China
| | - Xina Liu
- Key Laboratory of Agri-food Safety of Anhui Province, College of Resources and Environment, Anhui Agricultural University, No, 130 Changjiang West Road, Hefei 230036, China
| | - Meiqing Zhu
- Key Laboratory of Agri-food Safety of Anhui Province, College of Resources and Environment, Anhui Agricultural University, No, 130 Changjiang West Road, Hefei 230036, China
| | - Shisuo Fan
- Key Laboratory of Agri-food Safety of Anhui Province, College of Resources and Environment, Anhui Agricultural University, No, 130 Changjiang West Road, Hefei 230036, China
| | - Zhen Wang
- Key Laboratory of Agri-food Safety of Anhui Province, College of Resources and Environment, Anhui Agricultural University, No, 130 Changjiang West Road, Hefei 230036, China
| | - Jiaying Xue
- Key Laboratory of Agri-food Safety of Anhui Province, College of Resources and Environment, Anhui Agricultural University, No, 130 Changjiang West Road, Hefei 230036, China
| | - Rimao Hua
- Key Laboratory of Agri-food Safety of Anhui Province, College of Resources and Environment, Anhui Agricultural University, No, 130 Changjiang West Road, Hefei 230036, China
| | - Yi Wang
- Key Laboratory of Agri-food Safety of Anhui Province, College of Resources and Environment, Anhui Agricultural University, No, 130 Changjiang West Road, Hefei 230036, China.
| | - Qing X Li
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, 1955 East-West Road, Honolulu, HI 96822, USA
| |
Collapse
|
8
|
Fu J, Gong Z, Bae S. Assessment of the effect of methyl-triclosan and its mixture with triclosan on developing zebrafish (Danio rerio) embryos using mass spectrometry-based metabolomics. JOURNAL OF HAZARDOUS MATERIALS 2019; 368:186-196. [PMID: 30677650 DOI: 10.1016/j.jhazmat.2019.01.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 01/08/2019] [Accepted: 01/09/2019] [Indexed: 05/06/2023]
Abstract
Methyl-triclosan (MTCS), as a biodegradation product from antibacterial triclosan (TCS), has been detected in water catchments, and it has also been verified to accumulate in biota due to its hydrophobicity. There is a lack, however, of toxicity studies on MTCS and its effects on organisms in conjunction with TCS. In this study, exposure experiments were conducted to assess the toxicity to embryonic zebrafish of selected concentrations of MTCS (from 1 ng/L to 400 μg/L) and MTCS/TCS mixtures (from 1 μg/L TCS and 100 ng/L MTCS to 300 μg/L TCS and 30 μg/L MTCS). Specimens were extracted using acetonitrile: isopropanol: water (3:3:2; v/v/v) and then analyzed using Gas chromatography-mass spectrometry (GC-MS) to identify the metabolites based on the Fiehn library database. The results showed that MTCS exposure led to the alterations of the metabolomes of the zebrafish embryos, including level changes of l-valine, d-mannose, d-glucose, and other metabolites. Multivariate analysis (PCA, PLS-DA, sPLS-DA) and univariate analysis (one-way ANOVA) indicated differences between the control and exposure groups of the metabolites, indicating that biological pathways, such as amino acid synthesis, pentose phosphate pathway (PPP), starch and sucrose metabolism were influenced. Moreover, when the embryos were exposed to a mix of TCS and MTCS, TCS dominated the mixture's effect on biological pathways because the concentration ratio within the mixture, which mimics environmental ratio of 10 TCS : 1 MTCS, leads to high bioavailability of TCS.
Collapse
Affiliation(s)
- Jing Fu
- Department of Civil and Environmental Engineering, National University of Singapore, Singapore
| | - Zhiyuan Gong
- Department of Biological Sciences, National University of Singapore, Singapore
| | - Sungwoo Bae
- Department of Civil and Environmental Engineering, National University of Singapore, Singapore.
| |
Collapse
|
9
|
Wang L, Mao B, He H, Shang Y, Zhong Y, Yu Z, Yang Y, Li H, An J. Comparison of hepatotoxicity and mechanisms induced by triclosan (TCS) and methyl-triclosan (MTCS) in human liver hepatocellular HepG2 cells. Toxicol Res (Camb) 2018; 8:38-45. [PMID: 30713659 DOI: 10.1039/c8tx00199e] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 10/10/2018] [Indexed: 12/23/2022] Open
Abstract
Triclosan (TCS) is used as an antimicrobial agent and has been widely dispersed and detected in the environment and organisms including human samples. Methyl-triclosan (MTCS) is the predominant bacterial TCS metabolite. At present, the toxicological effects and mechanism of TCS and MTCS are still not fully understood. In this study, the cytotoxic effects of TCS and MTCS in HepG2 cells were investigated in terms of cell proliferation, comet assay, cell cycle, and apoptosis. In addition, the expressions of related proteins were detected with western blotting analysis. The results showed that TCS could significantly inhibit cell proliferation, while MTCS had no obvious effect on cell growth. Both TCS and MTCS caused oxidative injury associated with HO-1 induction and increased DNA strand breaks, which consequently initiated the damage repair process via up-regulation of DNA-PKcs. In addition, TCS blocked the HepG2 cells in S and G2/M phases of cell cycle through down-regulation of cyclin A2 and CDK; while MTCS induced cell cycle arrest at the S phase through up-regulation of cyclin A2 and CDK. Furthermore, TCS activated p53 mediated apoptosis in HepG2 cells in a caspase-independent manner, while MTCS induced apoptosis was dependent on caspase. Moreover, TCS exposure exhibited more severe toxicity in HepG2 cells as compared with MTCS exposure, indicating that the replacement of the ionizable proton in TCS by the methyl group in MTCS is correlated with the cellular toxicity and the molecular mechanism.
Collapse
Affiliation(s)
- Lu Wang
- School of Environmental and Chemical Engineering , Shanghai University , Shanghai 200444 , China . ; Tel: +86 21 66137736
| | - Boyu Mao
- Implant Dentistry Department , Jiangbei Dental Hospital , Ningbo 315000 , China
| | - Huixin He
- School of Environmental and Chemical Engineering , Shanghai University , Shanghai 200444 , China . ; Tel: +86 21 66137736
| | - Yu Shang
- School of Environmental and Chemical Engineering , Shanghai University , Shanghai 200444 , China . ; Tel: +86 21 66137736
| | - Yufang Zhong
- School of Environmental and Chemical Engineering , Shanghai University , Shanghai 200444 , China . ; Tel: +86 21 66137736
| | - Zhiqiang Yu
- State Key Laboratory of Organic Geochemistry , Guangzhou Institute of Geochemistry , Chinese Academy of Sciences , Guangzhou 510640 , China
| | - Yiting Yang
- Department of Neurology , Changhai Hospital , Second Military Medical University , Shanghai 200433 , China .
| | - Hui Li
- School of Environmental and Chemical Engineering , Shanghai University , Shanghai 200444 , China . ; Tel: +86 21 66137736
| | - Jing An
- School of Environmental and Chemical Engineering , Shanghai University , Shanghai 200444 , China . ; Tel: +86 21 66137736
| |
Collapse
|
10
|
Wang X, Wang M, Wang X, Du L, Chu F, Ding W, Gu H, Wang H. A novel naphthalene carboxylic acid-based ionic liquid mixed disperser combined with ultrasonic-enhanced in-situ metathesis reaction for preconcentration of triclosan and methyltriclosan in milk and eggs. ULTRASONICS SONOCHEMISTRY 2018; 47:57-67. [PMID: 29908607 DOI: 10.1016/j.ultsonch.2018.04.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Revised: 04/05/2018] [Accepted: 04/12/2018] [Indexed: 05/06/2023]
Abstract
A microextraction method was developed based on utilization of a novel ionic liquid (IL) [C4MIM][NCA] as disperser and conventional ILs as extractor (IL-IL-DLLME). This method was integrated with an in-situ metathesis reaction to achieve high extraction efficiency by eliminating the loss of analytes in the discarded disperser after microextraction. Ultrasonic energy was compared to traditional mechanical shaking to accelerate the in-situ metathesis reaction. A 3-min ultrasonic treatment provided similar extraction efficiency as a 120-min mechanical shaking. Due to their strong acidity and lower solubility than traditional hydrophilic ILs, utilization of [C4MIM][NCA] in the IL-IL-DLLME procedure increased extraction recoveries (ERs) for triclosan (TCS) and methyltriclosan (MTCS) by 10-12% and also avoided an extra pH adjustment step. A series of operational parameters were optimized using single-factor screening and central composite design as follows: 65 µL extraction solvent, 150 µL [C4MIM][BF4] and [C4MIM][NCA] (132/18, v/v, μL) as dispersive solvent, 0.16 g NH4PF6 and 3.3 min ultrasonic time. Under optimized conditions with a fortification of 100 µg kg-1, ERs were 92.6-93.4% for TCS and 92.7-94.2% for MTCS in bovine milk and chicken egg samples. LODs for TCS and MTCS were 0.16-0.24 µg kg-1 and the enrichment factors were 21.8-23.1. Inter- and intra-day precisions had relative standard deviations of 3.3-5.4% for the optimized method. Overall, this newly developed IL-IL-DLLME method was effective for detecting trace levels of TCS and MTCS in real-world, animal-based foods. Prominent advantages of the new method include high precision and accuracy, high extraction efficiency, simple analytical operations, and no use of organic solvents making the procedure environmentally benign.
Collapse
Affiliation(s)
- Xuedong Wang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Mei Wang
- Key Laboratory of Watershed Sciences and Health of Zhejiang Province, Wenzhou Medical University, Wenzhou 325035, China
| | - Xuran Wang
- School of Materials Science & Engineering, University of Science & Technology Beijing, Beijing 100083, China
| | - Liyang Du
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Fangyu Chu
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Weinan Ding
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Haidong Gu
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China.
| | - Huili Wang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China.
| |
Collapse
|
11
|
Costa Pedro MF, Kalck AS, dos Santos KF, Sousa MS, Romio KB, Souto PC, Silva JR, de Souza NC. Immobilization of triclosan and erythrosine in layer-by-layer films applied to inactivation of microorganisms. Photodiagnosis Photodyn Ther 2018; 22:158-165. [DOI: 10.1016/j.pdpdt.2018.04.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 04/14/2018] [Accepted: 04/18/2018] [Indexed: 11/29/2022]
|
12
|
Wang X, Gao M, Gao J, Wang X, Ma M, Wang H. Extraction of triclosan and methyltriclosan in human fluids by in situ ionic liquid morphologic transformation. J Chromatogr B Analyt Technol Biomed Life Sci 2018; 1092:19-28. [PMID: 29879592 DOI: 10.1016/j.jchromb.2018.05.038] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 05/02/2018] [Accepted: 05/27/2018] [Indexed: 12/14/2022]
Abstract
Herein, we established an ionic liquid (IL)-based liquid-solid transformation microextraction (IL-LTME) combined with HPLC-UV detection for the simultaneous determination of triclosan (TCS) and its methylated product, methyltriclosan (MTCS), in human fluids. The IL-LTME method was based on an in situ metathesis between hydrophilic IL and ion-exchange salt to form a solid hydrophobic IL. According to the above principle, a hydrophilic IL, [C12MIM]Br, was selected as the extractant, and NH4PF6 as ion-exchange salt. The prominent advantages of the newly developed method are: (1) the in-situ reaction between the extractant [C12MIM]Br and ion-exchange salt NH4PF6 changed the IL from hydrophilic to hydrophobic that avoiding the stick of ionic liquid on the tube wall; (2) bubbling with NH3 greatly increased the contact area between IL-extractant and analytes resulting in improved extraction recovery; and (3) solidification of the [C12MIM] PF6 provided a good separation and avoided the use of specialized equipment. A series of main parameters were optimized by single-factor screening and central composite design as follows: 0.9 mL of NaOH, 2.0 min of second ultrasonically time, 10 min of centrifugation time, 21 mg of extractant [C12MIM]PF6, 2.4 min of ultrasonic time, 65 mg of NH4PF6 and 13.8 min of cooling time. Under the optimized conditions, the limits of detection for TCS and MTCS were 0.126-0.161 μg L-1 in plasma samples, and 0.211-0.254 μg L-1 in urine samples, respectively. The extraction recoveries for TCS and MTCS were in the range of 94.1-103.8%. The intra-day and inter-day precisions were 1.00-4.74% and 1.02-5.21%, respectively. In general, the IL-LTME method is environment-friendly, time-saving, economical, high efficient and robust with low detection limits and high recoveries. Thus, the newly developed method has excellent prospects for sample pretreatment and analysis of trace TCS and MTCS in blood and urine samples.
Collapse
Affiliation(s)
- Xuran Wang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China; School of Materials Science & Engineering, University of Science & Technology Beijing, Beijing 100083, China
| | - Ming Gao
- Key Laboratory of Watershed Science and Health of Zhejiang Province, College of Public Health and Management, Wenzhou Medical University, Wenzhou 325035, China
| | - Jiajia Gao
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Xuedong Wang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Meiping Ma
- Key Laboratory of Watershed Science and Health of Zhejiang Province, College of Public Health and Management, Wenzhou Medical University, Wenzhou 325035, China.
| | - Huili Wang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China.
| |
Collapse
|
13
|
Yue Y, Zhao S, Liu J, Yan X, Sun Y. Probing the binding properties of dicyandiamide with pepsin by spectroscopy and docking methods. CHEMOSPHERE 2017; 185:1056-1062. [PMID: 28764101 DOI: 10.1016/j.chemosphere.2017.07.115] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 07/20/2017] [Accepted: 07/21/2017] [Indexed: 06/07/2023]
Abstract
Dicyandiamide (DCD), considered to be a nitrification inhibitor, poses threat to human's health with exposure from milk, infant formula and other food products. In this work, DCD was investigated for its binding reaction with pepsin using spectroscopy and docking methods. Fluorescence experiments indicated DCD quenched the fluorescence of pepsin through a static process. Thermodynamic analysis of the binding data (ΔH0 = -21.72 kJ mol-1 and ΔS0 = 17.61 J mol-1 K-1) suggested the involvement of hydrophobic and hydrogen bonding in the complex formation. The pepsin interacted with DCD at a hydrophobic cavity, leading to a conformational changes in the pepsin, as revealed from UV-vis absorption, Fourier transform infrared, the time-resolved fluorescence, three-dimensional fluorescence and circular dichroism spectral results.
Collapse
Affiliation(s)
- Yuanyuan Yue
- Henan Key Laboratory of Green Chemicals Media and Reactions, Ministry of Education, Key Laboratory of Green Chemical Media and Reactions, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering Institution, Henan Normal University, 453007, Xinxiang, China.
| | - Shufang Zhao
- Henan Key Laboratory of Green Chemicals Media and Reactions, Ministry of Education, Key Laboratory of Green Chemical Media and Reactions, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering Institution, Henan Normal University, 453007, Xinxiang, China
| | - Jianming Liu
- Henan Key Laboratory of Green Chemicals Media and Reactions, Ministry of Education, Key Laboratory of Green Chemical Media and Reactions, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering Institution, Henan Normal University, 453007, Xinxiang, China.
| | - Xuyang Yan
- Henan Key Laboratory of Green Chemicals Media and Reactions, Ministry of Education, Key Laboratory of Green Chemical Media and Reactions, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering Institution, Henan Normal University, 453007, Xinxiang, China
| | - Yangyang Sun
- Henan Key Laboratory of Green Chemicals Media and Reactions, Ministry of Education, Key Laboratory of Green Chemical Media and Reactions, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering Institution, Henan Normal University, 453007, Xinxiang, China
| |
Collapse
|
14
|
Salting-out-enhanced ionic liquid microextraction with a dual-role solvent for simultaneous determination of trace pollutants with a wide polarity range in aqueous samples. Anal Bioanal Chem 2017; 409:6287-6303. [DOI: 10.1007/s00216-017-0579-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 07/22/2017] [Accepted: 08/08/2017] [Indexed: 10/18/2022]
|
15
|
Yost LJ, Barber TR, Gentry PR, Bock MJ, Lyndall JL, Capdevielle MC, Slezak BP. Evaluation of triclosan in Minnesota lakes and rivers: Part II - human health risk assessment. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2017; 142:588-596. [PMID: 28483548 DOI: 10.1016/j.ecoenv.2017.04.048] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 04/19/2017] [Accepted: 04/24/2017] [Indexed: 06/07/2023]
Abstract
Triclosan, an antimicrobial compound found in consumer products, has been detected in low concentrations in Minnesota municipal wastewater treatment plant (WWTP) effluent. This assessment evaluates potential health risks for exposure of adults and children to triclosan in Minnesota surface water, sediments, and fish. Potential exposures via fish consumption are considered for recreational or subsistence-level consumers. This assessment uses two chronic oral toxicity benchmarks, which bracket other available toxicity values. The first benchmark is a lower bound on a benchmark dose associated with a 10% risk (BMDL10) of 47mg per kilogram per day (mg/kg-day) for kidney effects in hamsters. This value was identified as the most sensitive endpoint and species in a review by Rodricks et al. (2010) and is used herein to derive an estimated reference dose (RfD(Rodricks)) of 0.47mg/kg-day. The second benchmark is a reference dose (RfD) of 0.047mg/kg-day derived from a no observed adverse effect level (NOAEL) of 10mg/kg-day for hepatic and hematopoietic effects in mice (Minnesota Department of Health [MDH] 2014). Based on conservative assumptions regarding human exposures to triclosan, calculated risk estimates are far below levels of concern. These estimates are likely to overestimate risks for potential receptors, particularly because sample locations were generally biased towards known discharges (i.e., WWTP effluent).
Collapse
Affiliation(s)
- Lisa J Yost
- Ramboll Environ, Inc., 333 W. Wacker Dr., Suite 2700, Chicago, IL 60606, United States.
| | - Timothy R Barber
- Environmental Resources Management, 3333 Richmond Rd, Beachwood, OH 44122, United States.
| | - P Robinan Gentry
- Ramboll Environ, Inc., 1900 N. 18th St. Suite 804, Monroe, LA 71201, United States.
| | - Michael J Bock
- Ramboll Environ, Inc., 136 Commercial St. Suite 402, Portland, MN 04101, United States.
| | - Jennifer L Lyndall
- Society for Ecological Restoration, 1133 15th St NW, Suite 300, Washington DC 20005, United States.
| | - Marie C Capdevielle
- Colgate-Palmolive Company, 909 River Road, Piscataway, NJ 08854, United States.
| | - Brian P Slezak
- Colgate-Palmolive Company, 909 River Road, Piscataway, NJ 08854, United States.
| |
Collapse
|
16
|
Kabir MZ, Tee WV, Mohamad SB, Alias Z, Tayyab S. Comprehensive insight into the binding of sunitinib, a multi-targeted anticancer drug to human serum albumin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 181:254-263. [PMID: 28376387 DOI: 10.1016/j.saa.2017.03.059] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Revised: 03/24/2017] [Accepted: 03/25/2017] [Indexed: 06/07/2023]
Abstract
Binding studies between a multi-targeted anticancer drug, sunitinib (SU) and human serum albumin (HSA) were made using fluorescence, UV-vis absorption, circular dichroism (CD) and molecular docking analysis. Both fluorescence quenching data and UV-vis absorption results suggested formation of SU-HSA complex. Moderate binding affinity between SU and HSA was evident from the value of the binding constant (3.04×104M-1), obtained at 298K. Involvement of hydrophobic interactions and hydrogen bonds as the leading intermolecular forces in the formation of SU-HSA complex was predicted from the thermodynamic data of the binding reaction. These results were in good agreement with the molecular docking analysis. Microenvironmental perturbations around Tyr and Trp residues as well as secondary and tertiary structural changes in HSA upon SU binding were evident from the three-dimensional fluorescence and circular dichroism results. SU binding to HSA also improved the thermal stability of the protein. Competitive displacement results and molecular docking analysis revealed the binding locus of SU to HSA in subdomain IIA (Sudlow's site I). The influence of a few common ions on the binding constant of SU-HSA complex was also noticed.
Collapse
Affiliation(s)
- Md Zahirul Kabir
- Biomolecular Research Group, Biochemistry Programme, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Wei-Ven Tee
- Bioinformatics Programme, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Saharuddin B Mohamad
- Bioinformatics Programme, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia; Centre of Research for Computational Sciences and Informatics for Biology, Bioindustry, Environment, Agriculture and Healthcare, University of Malaya, Kuala Lumpur, Malaysia
| | - Zazali Alias
- Biomolecular Research Group, Biochemistry Programme, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Saad Tayyab
- Biomolecular Research Group, Biochemistry Programme, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia; Centre of Research for Computational Sciences and Informatics for Biology, Bioindustry, Environment, Agriculture and Healthcare, University of Malaya, Kuala Lumpur, Malaysia.
| |
Collapse
|
17
|
Wang Q, Kelly BC. Occurrence and distribution of synthetic musks, triclosan and methyl triclosan in a tropical urban catchment: Influence of land-use proximity, rainfall and physicochemical properties. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 574:1439-1447. [PMID: 27586166 DOI: 10.1016/j.scitotenv.2016.08.091] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 08/13/2016] [Accepted: 08/13/2016] [Indexed: 05/05/2023]
Abstract
This study involved a comprehensive thirteen month survey of synthetic musks, triclosan (TCS) and methyl triclosan (MTCS) in surface water, as well as suspended particular matter (SPM) and bottom sediments in a tropical urban catchment in Singapore. The polycyclic musk, Galaxolide (HHCB), exhibited the highest concentration among musk compounds, ranging from 5.16 to 42.9ng/L in surface water, 11.0 to 108ng/g dry wt. in sediments and 44.1 to 81.3ng/g dry wt. in SPM. Concentrations of musk ketone, the dominant nitroaromatic musk, ranged from 0.08 to 6.45ng/L in water, 0.082 to 0.72ng/g dry wt. in sediments and 1.75 to 5.50ng/g dry wt. in SPM. Concentrations of MTCS ranged from 0.0056 to 5.6ng/L in water, 0.01 to 0.17ng/g dry wt. in bottom sediments and 0.75 to 2.81ng/g dry wt. in SPM. These concentrations are below predicted no-effect concentrations (PNEC). Principal components analysis (PCA) results showed that synthetic musk concentrations were positively correlated, indicating common source emissions. Rainfall amount and land-use index were found to be key determinants of hydrophobic organic contaminant concentrations in this catchment. Concentrations of TCS and its methylated degradation product, MTCS, were also positively correlated. However, the relative composition of MTCS to total triclosans was relatively low in water (2.8±2.5%) and bottom sediments (0.3±0.1%), suggesting only minor transformation of TCS to MTCS. The organic carbon-water distribution ratio, log Koc (observed), ranged between 3.8 and 5.4 for musks, TCS and MTCS, indicating relatively strong partitioning from dissolved to solid phases. These field-derived log Koc (observed) values are comparable to estimated values based on physicochemical properties. The results provide insight into the occurrence, transport pathways and exposure risks of synthetic musks, triclosan and methyl triclosan in this tropical catchment.
Collapse
Affiliation(s)
- Qian Wang
- Department of Civil and Environmental Engineering, National University of Singapore, Singapore
| | - Barry C Kelly
- Department of Civil and Environmental Engineering, National University of Singapore, Singapore.
| |
Collapse
|
18
|
Weatherly LM, Gosse JA. Triclosan exposure, transformation, and human health effects. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2017; 20:447-469. [PMID: 29182464 PMCID: PMC6126357 DOI: 10.1080/10937404.2017.1399306] [Citation(s) in RCA: 285] [Impact Index Per Article: 40.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Triclosan (TCS) is an antimicrobial used so ubiquitously that 75% of the US population is likely exposed to this compound via consumer goods and personal care products. In September 2016, TCS was banned from soap products following the risk assessment by the US Food and Drug Administration (FDA). However, TCS still remains, at high concentrations, in other personal care products such as toothpaste, mouthwash, hand sanitizer, and surgical soaps. TCS is readily absorbed into human skin and oral mucosa and found in various human tissues and fluids. The aim of this review was to describe TCS exposure routes and levels as well as metabolism and transformation processes. The burgeoning literature on human health effects associated with TCS exposure, such as reproductive problems, was also summarized.
Collapse
Affiliation(s)
- Lisa M. Weatherly
- Graduate School of Biomedical Science and Engineering, University of Maine, Orono, ME, USA
- Department of Molecular and Biomedical Sciences, University of Maine, Orono, ME, USA
| | - Julie A. Gosse
- Graduate School of Biomedical Science and Engineering, University of Maine, Orono, ME, USA
- Department of Molecular and Biomedical Sciences, University of Maine, Orono, ME, USA
| |
Collapse
|
19
|
Yue Y, Sun Y, Yan X, Liu J, Zhao S, Zhang J. Evaluation of the binding of perfluorinated compound to pepsin: Spectroscopic analysis and molecular docking. CHEMOSPHERE 2016; 161:475-481. [PMID: 27459159 DOI: 10.1016/j.chemosphere.2016.07.047] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Revised: 07/12/2016] [Accepted: 07/15/2016] [Indexed: 06/06/2023]
Abstract
In this paper, we investigated the binding mode of perfluorooctanoic acid (PFOA) and perfluorononanoic acid (PFNA) to pepsin using spectroscopies and molecular docking methods. Fluorescence quenching study indicated that their different ability to bind with pepsin. Meanwhile, time-resolved fluorescence measurements established that PFOA and PFNA quenched the fluorescence intensity of pepsin through the mechanism of static quenching. The thermodynamic parameters showed that hydrophobic forces were the main interactions. Furthermore, UV-vis, FTIR, three-dimensional fluorescence and molecular docking result indicated that PFCs impact the conformation of pepsin and PFOA was more toxic than PFNA. The conformational transformation of PFOA/PFNA-pepsin was confirmed through the quantitative analysis of the CD spectra. The present studies offer the theory evidence to analyze environmental safety and biosecurity of PFCs on proteases.
Collapse
Affiliation(s)
- Yuanyuan Yue
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, PR China; Henan Key Laboratory of Green Chemical Media and Reactions, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, PR China.
| | - Yangyang Sun
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, PR China
| | - Xuyang Yan
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, PR China
| | - Jianming Liu
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, PR China; Henan Key Laboratory of Green Chemical Media and Reactions, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, PR China
| | - Shufang Zhao
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, PR China
| | - Jia Zhang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, PR China
| |
Collapse
|
20
|
Zhuang S, Wang H, Ding K, Wang J, Pan L, Lu Y, Liu Q, Zhang C. Interactions of benzotriazole UV stabilizers with human serum albumin: Atomic insights revealed by biosensors, spectroscopies and molecular dynamics simulations. CHEMOSPHERE 2016; 144:1050-9. [PMID: 26454115 DOI: 10.1016/j.chemosphere.2015.09.085] [Citation(s) in RCA: 114] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 09/16/2015] [Accepted: 09/22/2015] [Indexed: 05/08/2023]
Abstract
Benzotriazole UV stabilizers (BZTs) belong to one prominent group of ultraviolet (UV) stabilizers and are widely used in various plastics materials. Their large production volumes, frequent detections in the environment and potential toxicities have raised increasing public concern. BZTs can be transported in vivo by transport proteins in plasma and the binding association to transport proteins may serve as a significant parameter to evaluate the bioaccumulative potential. We utilized a novel HSA biosensor, circular dichroism spectroscopy, fluorescence spectroscopy to detect the dynamic interactions of six BZTs (UV-326, UV-327, UV-328, UV-329, UV-P, and BZT) with human serum albumin (HSA), and characterized the corresponding structure-activity relationships (SAR) by molecular dynamics simulations. All test BZTs potently bind at Sudlow site I of HSA with a binding constant of 10(4) L/mol at 298 K. Minor changes in the moieties of BZTs affect their interactions with HSA and differently induce conformations of HSA. Their binding reduced electrochemical impedance spectra and α-helix content of HSA, caused slight red-shifted emission, and changed fluorescence lifetime components of HSA in a concentration-dependent mode. UV-327 and UV-329 form hydrogen bonds with HSA, while UV-329, UV-P and BZT bind HSA with more favorable electrostatic interactions. Our in vitro and in silico study offered a significant framework toward the understanding of risk assessment of BZTs and provides guide for future design of environmental benign BZTs-related materials.
Collapse
Affiliation(s)
- Shulin Zhuang
- Institute of Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Health Risk Factors for Seafood of Zhejiang Province, Zhoushan 316022, China.
| | - Haifei Wang
- Institute of Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Health Risk Factors for Seafood of Zhejiang Province, Zhoushan 316022, China
| | - Keke Ding
- Institute of Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jiaying Wang
- Institute of Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Liumeng Pan
- Institute of Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yanli Lu
- Biosensor National Special Laboratory, Key Laboratory of Biomedical Engineering of Education Ministry, Department of Biomedical Engineering, Zhejiang University, Hangzhou 310027, China
| | - Qingjun Liu
- Biosensor National Special Laboratory, Key Laboratory of Biomedical Engineering of Education Ministry, Department of Biomedical Engineering, Zhejiang University, Hangzhou 310027, China
| | - Chunlong Zhang
- Department of Environmental Sciences, University of Houston-Clear Lake, 2700 Bay Area Blvd., Houston, TX 77058, USA
| |
Collapse
|
21
|
Yue Y, Sun Y, Dong Q, Liu R, Yan X, Zhang Y, Liu J. Interaction of human serum albumin with novel imidazole derivatives studied by spectroscopy and molecular docking. LUMINESCENCE 2015; 31:671-81. [DOI: 10.1002/bio.3010] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2015] [Revised: 07/19/2015] [Accepted: 07/20/2015] [Indexed: 01/07/2023]
Affiliation(s)
- Yuanyuan Yue
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals; Henan Normal University; Xinxiang People's Republic of China
| | - Yangyang Sun
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals; Henan Normal University; Xinxiang People's Republic of China
| | - Qiao Dong
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals; Henan Normal University; Xinxiang People's Republic of China
| | - Ren Liu
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals; Henan Normal University; Xinxiang People's Republic of China
| | - Xuyang Yan
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals; Henan Normal University; Xinxiang People's Republic of China
| | - Yajie Zhang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals; Henan Normal University; Xinxiang People's Republic of China
| | - Jianming Liu
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals; Henan Normal University; Xinxiang People's Republic of China
| |
Collapse
|
22
|
Zhang R, Sun T, Liu C, Song W, Cao Z, Liu R. New Insights into the Toxicity ofn-Butanol to Trypsin: Spectroscopic and Molecular Docking Descriptions. J Biochem Mol Toxicol 2015; 29:418-425. [DOI: 10.1002/jbt.21711] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Revised: 03/27/2015] [Accepted: 04/01/2015] [Indexed: 12/21/2022]
Affiliation(s)
- Rui Zhang
- School of Environmental Science and Engineering; Shandong University, China -America CRC for Environment & Health; Jinan 250100 People's Republic of China
| | - Tao Sun
- School of Environmental Science and Engineering; Shandong University, China -America CRC for Environment & Health; Jinan 250100 People's Republic of China
| | - Chunguang Liu
- School of Environmental Science and Engineering; Shandong University, China -America CRC for Environment & Health; Jinan 250100 People's Republic of China
| | - Wei Song
- School of Environmental Science and Engineering; Shandong University, China -America CRC for Environment & Health; Jinan 250100 People's Republic of China
| | - Zhaozhen Cao
- School of Environmental Science and Engineering; Shandong University, China -America CRC for Environment & Health; Jinan 250100 People's Republic of China
| | - Rutao Liu
- School of Environmental Science and Engineering; Shandong University, China -America CRC for Environment & Health; Jinan 250100 People's Republic of China
| |
Collapse
|
23
|
Yue Y, Liu J, Liu R, Sun Y, Li X, Fan J. The binding affinity of phthalate plasticizers-protein revealed by spectroscopic techniques and molecular modeling. Food Chem Toxicol 2014; 71:244-53. [DOI: 10.1016/j.fct.2014.06.022] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2014] [Accepted: 06/23/2014] [Indexed: 11/26/2022]
|