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Lopes J, Marques-da-Silva D, Videira PA, Samhan-Arias AK, Lagoa R. Cardiolipin Membranes Promote Cytochrome c Transformation of Polycyclic Aromatic Hydrocarbons and Their In Vivo Metabolites. Molecules 2024; 29:1129. [PMID: 38474641 DOI: 10.3390/molecules29051129] [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: 12/30/2023] [Revised: 02/25/2024] [Accepted: 02/28/2024] [Indexed: 03/14/2024] Open
Abstract
The catalytic properties of cytochrome c (Cc) have captured great interest in respect to mitochondrial physiology and apoptosis, and hold potential for novel enzymatic bioremediation systems. Nevertheless, its contribution to the metabolism of environmental toxicants remains unstudied. Human exposure to polycyclic aromatic hydrocarbons (PAHs) has been associated with impactful diseases, and animal models have unveiled concerning signs of PAHs' toxicity to mitochondria. In this work, a series of eight PAHs with ionization potentials between 7.2 and 8.1 eV were used to challenge the catalytic ability of Cc and to evaluate the effect of vesicles containing cardiolipin mimicking mitochondrial membranes activating the peroxidase activity of Cc. With moderate levels of H2O2 and at pH 7.0, Cc catalyzed the oxidation of toxic PAHs, such as benzo[a]pyrene, anthracene, and benzo[a]anthracene, and the cardiolipin-containing membranes clearly increased the PAH conversions. Our results also demonstrate for the first time that Cc and Cc-cardiolipin complexes efficiently transformed the PAH metabolites 2-hydroxynaphthalene and 1-hydroxypyrene. In comparison to horseradish peroxidase, Cc was shown to reach more potent oxidizing states and react with PAHs with ionization potentials up to 7.70 eV, including pyrene and acenaphthene. Spectral assays indicated that anthracene binds to Cc, and docking simulations proposed possible binding sites positioning anthracene for oxidation. The results give support to the participation of Cc in the metabolism of PAHs, especially in mitochondria, and encourage further investigation of the molecular interaction between PAHs and Cc.
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Affiliation(s)
- João Lopes
- School of Technology and Management, Polytechnic Institute of Leiria, Morro do Lena-Alto do Vieiro, 2411-901 Leiria, Portugal
- Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials (LSRE-LCM), School of Management and Technology, Polytechnic Institute of Leiria, 2411-901 Leiria, Portugal
- Associate Laboratory in Chemical Engineering (ALiCE), Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Dorinda Marques-da-Silva
- School of Technology and Management, Polytechnic Institute of Leiria, Morro do Lena-Alto do Vieiro, 2411-901 Leiria, Portugal
- Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials (LSRE-LCM), School of Management and Technology, Polytechnic Institute of Leiria, 2411-901 Leiria, Portugal
- Associate Laboratory in Chemical Engineering (ALiCE), Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Paula A Videira
- Applied Molecular Biosciences Unit (UCIBIO), NOVA School of Science and Technology, NOVA University of Lisbon, 2829-516 Caparica, Portugal
- Institute for Health and Bioeconomy (i4HB), NOVA School of Science and Technology, NOVA University of Lisbon, 2829-516 Caparica, Portugal
| | - Alejandro K Samhan-Arias
- Department of Biochemistry, Autonoma University of Madrid (UAM), C/Arturo Duperier 4, 28029 Madrid, Spain
- Institute for Biomedical Research 'Sols-Morreale' (CSIC-UAM), C/Arturo Duperier 4, 28029 Madrid, Spain
| | - Ricardo Lagoa
- School of Technology and Management, Polytechnic Institute of Leiria, Morro do Lena-Alto do Vieiro, 2411-901 Leiria, Portugal
- Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials (LSRE-LCM), School of Management and Technology, Polytechnic Institute of Leiria, 2411-901 Leiria, Portugal
- Associate Laboratory in Chemical Engineering (ALiCE), Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
- Applied Molecular Biosciences Unit (UCIBIO), NOVA School of Science and Technology, NOVA University of Lisbon, 2829-516 Caparica, Portugal
- Institute for Health and Bioeconomy (i4HB), NOVA School of Science and Technology, NOVA University of Lisbon, 2829-516 Caparica, Portugal
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Yu HM, Liang GX, Wang HY, Hang XM, Wang HH, Peng JX, Wang L. A MnO 2 nanosheet-mediated CRISPR/Cas12a system for the detection of organophosphorus pesticides in environmental water. Analyst 2024; 149:729-734. [PMID: 38131397 DOI: 10.1039/d3an02020g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Nowadays, easy, convenient, and sensitive sensing strategies are still critical for organophosphorus pesticides in environmental water samples. Herein, a novel organophosphorus pesticide (OP) assay based on acetylcholinesterase (AChE) and a MnO2 nanosheet-mediated CRISPR/Cas12a reaction is reported. The single-strand DNA (ssDNA) activator of CRISPR/Cas12a was simply adsorbed on the MnO2 nanosheets as the nanoswitches of the assay. In the absence of target OPs, AChE hydrolyzed acetylcholine (ATCh) to thiocholine (TCh), which reduced the MnO2 nanosheets to Mn2+, resulting in the release of the activator followed by activation of the CRISPR/Cas12a system. The activated Cas12a thereafter nonspecifically cleaved the FAM/BHQ1-labeled ssDNA (FQ-reporter), producing a fluorescence signal. Upon the addition of target OPs, the hydrolysis of ATCh by AChE was inhibited owing to OPs combining with AChE, and thus effective quantification of OPs could be achieved by measuring the fluorescence changes of the system. As a proof of concept, dichlorvos (DDVP) was chosen as a model OP analyte to address the feasibility of the proposed method. Attributed to the excellent trans-cleavage activity of Cas12a, the fluorescent biosensor exhibits a satisfactory limit of detection (LOD) for DDVP at 0.135 ng mL-1. In addition, the excellent recoveries for the detection of DDVP in environmental water samples demonstrate the applicability of the proposed assay in real sample research.
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Affiliation(s)
- Hao-Ming Yu
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, P. R. China
| | - Guo-Xi Liang
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, P. R. China
| | - Hui-Yi Wang
- School of Pharmacy, Jiangsu University, Zhenjiang 212013, P. R. China.
| | - Xiao-Min Hang
- School of Pharmacy, Jiangsu University, Zhenjiang 212013, P. R. China.
| | - Hong-Hong Wang
- School of Pharmacy, Jiangsu University, Zhenjiang 212013, P. R. China.
| | - Jia-Xin Peng
- School of Pharmacy, Jiangsu University, Zhenjiang 212013, P. R. China.
| | - Li Wang
- School of Pharmacy, Jiangsu University, Zhenjiang 212013, P. R. China.
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Liu S, Zhu X, Pei H, Zhao Y, Zong Y, Chen W, He Z, Du R. Ginseng Stem-and-Leaf Saponins Mitigate Chlorpyrifos-Evoked Intestinal Toxicity In Vivo and In Vitro: Oxidative Stress, Inflammatory Response and Apoptosis. Int J Mol Sci 2023; 24:15968. [PMID: 37958950 PMCID: PMC10650881 DOI: 10.3390/ijms242115968] [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: 09/23/2023] [Revised: 10/25/2023] [Accepted: 10/26/2023] [Indexed: 11/15/2023] Open
Abstract
In recent years, the phenomenon of acute poisoning and organ damage caused by organophosphorus pesticides (OPs) has been a frequent occurrence. Chlorpyrifos (CPF) is one of the most widely used organophosphorus pesticides. The main active components of ginseng stems and leaves are total ginseng stem-and-leaf saponins (GSLSs), which have various biological effects, including anti-inflammatory, antioxidant and anti-tumor activities. We speculate that these could have great potential in the treatment of severe diseases and the relief of organophosphorus-pesticide-induced side effects; however, their mechanism of action is still unknown. At present, our work aims to evaluate the effects of GSLSs on the antioxidation of CPF in vivo and in vitro and their potential pharmacological mechanisms. Mice treated with CPF (5 mg/kg) showed severe intestinal mucosal injury, an elevated diamine oxidase (DAO) index, the decreased expression of occlusive protein-1 (ZO-1) and occlusive protein, an impaired intestinal mucosal oxidation system and intestinal villi relaxation. In addition, chlorpyrifos exposure significantly increased the contents of the inflammatory factor TNF-α and the oxidative-stress-related indicators superoxide dismutase (SOD), catalase (CAT), glutathione SH (GSH), glutathione peroxidase (GSH-PX), reactive oxygen species (ROS) and total antioxidant capacity (T-AOC); elevated the level of lipid peroxide malondialdehyde (MDA); reversed the expression of Bax and caspase; and activated NF-κB-related proteins. Interestingly, GSLS supplementation at doses of 100 and 200 mg/kg significantly reversed these changes after treatment. Similar results were observed in cultured RAW264.7 cells. Using flow cytometry, Hoechst staining showed that GSLSs (30 μg/mL, 60 μg/mL) could improve the cell injury and apoptosis caused by CPF and reduce the accumulation of ROS in cells. In conclusion, GSLSs play a protective role against CPF-induced enterotoxicity by inhibiting NF-κB-mediated apoptosis and alleviating oxidative stress and inflammation.
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Affiliation(s)
- Silu Liu
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China; (S.L.); (X.Z.); (H.P.); (Y.Z.); (Y.Z.); (W.C.)
| | - Xiaoying Zhu
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China; (S.L.); (X.Z.); (H.P.); (Y.Z.); (Y.Z.); (W.C.)
| | - Hongyan Pei
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China; (S.L.); (X.Z.); (H.P.); (Y.Z.); (Y.Z.); (W.C.)
| | - Yan Zhao
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China; (S.L.); (X.Z.); (H.P.); (Y.Z.); (Y.Z.); (W.C.)
| | - Ying Zong
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China; (S.L.); (X.Z.); (H.P.); (Y.Z.); (Y.Z.); (W.C.)
| | - Weijia Chen
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China; (S.L.); (X.Z.); (H.P.); (Y.Z.); (Y.Z.); (W.C.)
| | - Zhongmei He
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China; (S.L.); (X.Z.); (H.P.); (Y.Z.); (Y.Z.); (W.C.)
| | - Rui Du
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China; (S.L.); (X.Z.); (H.P.); (Y.Z.); (Y.Z.); (W.C.)
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun 130118, China
- Key Laboratory of Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
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Kocak TK, Kocak GO, Stuart AL. Polycyclic aromatic hydrocarbons in aquatic media of Turkey: A systematic review of cancer and ecological risk. MARINE POLLUTION BULLETIN 2023; 188:114671. [PMID: 36860025 DOI: 10.1016/j.marpolbul.2023.114671] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 01/10/2023] [Accepted: 01/24/2023] [Indexed: 06/18/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) have gathered worldwide attention due to their carcinogenicity and toxicity. This paper aims to review and extend current knowledge on PAHs in aquatic environments in Turkey, where expansion of the marine industry has caused contamination concerns. To assess cancer and ecological risks associated with PAHs, we systematically reviewed 39 research articles. Mean measured concentrations of total PAHs ranged from 61 to 249,900 ng L-1 in surface waters, 1 to 209,400 ng g-1 in sediments, and 4 to 55,000 ng g-1 in organisms. Estimated cancer risks from concentrations in organisms were higher than those from surface waters and sediments. Negative ecosystem impacts of petrogenic PAHs were estimated to be larger than those of pyrogenic origin, despite the predominance of the latter. Overall, the Marmara, Aegean, and Black seas are highly-polluted and need remedial action, while further study is needed to confirm the status of other water bodies.
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Affiliation(s)
- Talha Kemal Kocak
- Environmental Sciences, Graduate School of Natural and Applied Sciences, Gazi University, Ankara 06500, Turkey.
| | - Goze Ozlem Kocak
- Department of Sociology, Faculty of Languages and History-Geography, Ankara University, Ankara 06430, Turkey
| | - Amy L Stuart
- College of Public Health, University of South Florida, Tampa, FL 33612, USA; Department of Civil and Environmental Engineering, University of South Florida, Tampa, FL 33620, USA
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Keir JLA, Kirkham TL, Aranda-Rodriguez R, White PA, Blais JM. Effectiveness of dermal cleaning interventions for reducing firefighters' exposures to PAHs and genotoxins. JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL HYGIENE 2023; 20:84-94. [PMID: 36469739 DOI: 10.1080/15459624.2022.2150768] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Firefighters are exposed to carcinogenic and mutagenic combustion emissions, including polycyclic aromatic hydrocarbons (PAHs). Fire service and firefighter cancer advocacy groups recommend skin cleaning using wipes or washing with detergent and water after exposure to smoke, although these strategies have not been proven to reduce exposures to harmful combustion products such as PAHs. This study assessed dermal decontamination methods to reduce PAH exposures by firefighters participating in live fire training scenarios. Study participants (n = 88) were randomly assigned to an intervention group (i.e., two types of commercial skin wipes, detergent and water, or a control group who did not use any skin decontamination). PAHs were measured in personal air (during the fire) and dermal wipe samples (before and after fire suppression and after dermal decontamination). PAH metabolites and mutagenicity were measured in urine samples before and after fire suppression. Airborne PAH concentrations during the fire ranged between 200 and 3,970 μg/m3 (mean = 759 μg/m3, SD = 685 μg/m3). Firefighters had higher total PAHs and high-molecular-weight PAHs on their skin after the fire compared to before (1.3- and 2.2-fold, respectively, p < 0.01). Urinary PAH metabolites increased significantly following exposure to the training fires by 1.7 to 2.2-fold (depending on the metabolite, p < 0.001). Urinary mutagenicity did not differ significantly between pre- and post-fire for any of the decontamination methods. Detergent and water was the only intervention that removed a significant amount of total PAHs from the skin (0.72 ng/cm2 preintervention vs. 0.38 ng/cm2 postintervention, p < 0.01). However, fold changes in urinary PAH metabolites (i.e., pre- vs. post-exposure levels) did not differ among any of the dermal decontamination methods or the control group. These data suggest that despite on-site attempts to remove PAHs from firefighters' skin, the examined interventions did not reduce the internal dose of PAHs. Future work should investigate preventing initial exposure using other interventions, such as improved personal protective equipment.
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Affiliation(s)
- Jennifer L A Keir
- Department of Biology, University of Ottawa, Ottawa, Ontario, Canada
| | - Tracy L Kirkham
- Occupational Cancer Research Centre, Ontario Health, Toronto, Ontario, Canada
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Rocio Aranda-Rodriguez
- Environmental Health Science and Research Bureau, Health Canada, Ottawa, Ontario, Canada
| | - Paul A White
- Department of Biology, University of Ottawa, Ottawa, Ontario, Canada
- Environmental Health Science and Research Bureau, Health Canada, Ottawa, Ontario, Canada
| | - Jules M Blais
- Department of Biology, University of Ottawa, Ottawa, Ontario, Canada
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Waters LJ, Quah XL. Predicting skin permeability using HuskinDB. Sci Data 2022; 9:584. [PMID: 36151144 PMCID: PMC9508232 DOI: 10.1038/s41597-022-01698-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 09/14/2022] [Indexed: 11/16/2022] Open
Abstract
A freely accessible database has recently been released that provides measurements available in the literature on human skin permeation data, known as the ‘Human Skin Database – HuskinDB’. Although this database is extremely useful for sourcing permeation data to help with toxicity and efficacy determination, it cannot be beneficial when wishing to consider unlisted, or novel compounds. This study undertakes analysis of the data from within HuskinDB to create a model that predicts permeation for any compound (within the range of properties used to create the model). Using permeability coefficient (Kp) data from within this resource, several models were established for Kp values for compounds of interest by varying the experimental parameters chosen and using standard physicochemical data. Multiple regression analysis facilitated creation of one particularly successful model to predict Kp through human skin based only on three chemical properties. The model transforms the dataset from simply a resource of information to a more beneficial model that can be used to replace permeation testing for a wide range of compounds.
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Affiliation(s)
- Laura J Waters
- School of Applied Sciences, University of Huddersfield, Queensgate, Huddersfield, HD1 3DH, UK.
| | - Xin Ling Quah
- School of Applied Sciences, University of Huddersfield, Queensgate, Huddersfield, HD1 3DH, UK
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