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Wang Y, Zhao J, Xu Y, Tao C, Tong J, Luo Y, Chen Y, Liu X, Xu T. Uncovering SOD3 and GPX4 as new targets of Benzo[α]pyrene-induced hepatotoxicity through Metabolomics and Chemical Proteomics. Redox Biol 2023; 67:102930. [PMID: 37847980 PMCID: PMC10585396 DOI: 10.1016/j.redox.2023.102930] [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: 09/05/2023] [Revised: 10/06/2023] [Accepted: 10/10/2023] [Indexed: 10/19/2023] Open
Abstract
Benzo[α]pyrene (Bap) is recognized as a ubiquitous environmental pollutant among the polycyclic aromatic hydrocarbons (PAHs) class. Previous studies have shown that the hepatotoxicity of Bap is mainly caused by its metabolites, although it remains unclear whether Bap itself induces such damage. This study integrated metabolomics and chemical proteomics approaches to comprehensively identify the potential target proteins affected by Bap in liver cells. The results from the metabolomics showed that the significant changed metabolites were related with cellular redox homeostasis. CEllular Thermal Shift Assay (CETSA) showed that Bap induced protein thermal displacement of superoxide dismutase 3 (SOD3) and glutathione peroxidase 4 (GPX4), which are closely related to oxidative homeostasis. Further validation through in vitro CETSA and drug affinity response target stability (DARTS) revealed that Bap directly affected the stability of SOD3 and GPX4 proteins. The binding affinities of Bap to the potential target proteins were further evaluated using molecular docking, while the isothermal titration calorimetry (ITC) interaction measurements indicated nanomolar-level Kd values. Importantly, we found that Bap weakened the antioxidant capacity by destroying the activities of SOD3 and GPX4, which provided a new understanding of the mechanism of hepatotoxicity induced by Bap. Moreover, our provided workflow integrating metabolomics and label-free chemical proteomics, can be regarded as a practical way to identify the targets and inter-mechanisms for the various environmental compounds.
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Affiliation(s)
- Yanwei Wang
- Key Laboratory of Advanced Drug Delivery Systems of Zhejiang Province, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, Zhejiang, China
| | - Jiahui Zhao
- Department of Geriatrics and Shenzhen Clinical Research Centre for Geriatrics, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, 518020, China
| | - Yipeng Xu
- Department of Urology, Zhejiang Cancer Hospital, Hangzhou, Zhejiang, 310022, China
| | - Cimin Tao
- Key Laboratory of Advanced Drug Delivery Systems of Zhejiang Province, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, Zhejiang, China
| | - Jie Tong
- PET Center, Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, CT, 06520, USA
| | - Yingjie Luo
- Key Laboratory of Advanced Drug Delivery Systems of Zhejiang Province, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, Zhejiang, China; Cangnan County Qiushi Innovation Research Institute of Traditional Chinese Medicine, Wenzhou, Zhejiang, 325899, China
| | - Yong Chen
- Key Laboratory of Advanced Drug Delivery Systems of Zhejiang Province, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, Zhejiang, China; Cangnan County Qiushi Innovation Research Institute of Traditional Chinese Medicine, Wenzhou, Zhejiang, 325899, China
| | - Xuesong Liu
- Key Laboratory of Advanced Drug Delivery Systems of Zhejiang Province, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, Zhejiang, China; Cangnan County Qiushi Innovation Research Institute of Traditional Chinese Medicine, Wenzhou, Zhejiang, 325899, China
| | - Tengfei Xu
- Key Laboratory of Advanced Drug Delivery Systems of Zhejiang Province, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, Zhejiang, China; Cangnan County Qiushi Innovation Research Institute of Traditional Chinese Medicine, Wenzhou, Zhejiang, 325899, China.
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Varela-Silva JA, Martínez-Leija ME, Orta-García ST, Pérez-Maldonado IN, López JA, Hernández-López H, González-Amaro R, Calderón-Aranda ES, Portales-Pérez DP, Salgado-Bustamante M. Differential Expression of AhR in Peripheral Mononuclear Cells in Response to Exposure to Polycyclic Aromatic Hydrocarbons in Mexican Women. TOXICS 2022; 11:28. [PMID: 36668754 PMCID: PMC9861257 DOI: 10.3390/toxics11010028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 12/18/2022] [Accepted: 12/22/2022] [Indexed: 06/17/2023]
Abstract
The exposure to air pollutants causes significant damage to health, and inefficient cooking and heating practices produce high levels of household air pollution, including a wide range of health-damaging pollutants such as fine particles, carbon monoxide and PAHs. The exposure to PAHs has been associated with the development of neoplastic processes, asthma, genotoxicity, altered neurodevelopment and inflammation. The effects on the induction of proinflammatory cytokines are attributed to the activation of AhR. However, the molecular mechanisms by which the PAHs produce proinflammatory effects are unknown. This study was performed on a group of 41 Mexican women from two rural communities who had stoves inside their houses, used wood as biomass fuel, and, thus, were vulnerable. According to the urinary 1-OHP concentration, the samples were stratified into two groups for determination of the levels of TNF-α, AhR, CYP1B1, miR-125b and miR-155 expression. Our results showed that the CYP1B1, TNF-α, miR-125b and miR-155 expression levels were not statistically different between women with the lowest and highest levels of 1-OHP. Interestingly, high levels of PAHs promoted augmented expression of AhR, which is a protein involved in the modulation of inflammatory pathways in vivo, suggesting that cell signaling of AhR may be implicated in several pathogenesis processes.
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Affiliation(s)
- José Antonio Varela-Silva
- Biochemistry Department, and Immunology, Department of Faculty of Medicine, UASLP, San Luis Potosí 78000, Mexico
| | | | - Sandra Teresa Orta-García
- Laboratory of Molecular Toxicology, Centro de Investigación Aplicada en, Ambiente y Salud (CIAAS), Coordinación para la Innovación y Aplicación de la, Ciencia y la Tecnología (CIACYT), UASLP, San Luis Potosí 78000, Mexico
| | - Ivan Nelinho Pérez-Maldonado
- Laboratory of Molecular Toxicology, Centro de Investigación Aplicada en, Ambiente y Salud (CIAAS), Coordinación para la Innovación y Aplicación de la, Ciencia y la Tecnología (CIACYT), UASLP, San Luis Potosí 78000, Mexico
| | - Jesús Adrián López
- Laboratorio de microRNAs y Cáncer, Unidad Académica de Ciencias Biológicas, Universidad Autónoma de Zacatecas, Zacatecas 98066, Mexico
| | - Hiram Hernández-López
- Academic Unit of Chemistry Sciences, Universidad Autónoma de Zacatecas, Zacatecas 98606, Mexico
| | - Roberto González-Amaro
- Laboratory of Immunology Cellular and molecular, Faculty of Chemistry, Universidad Autónoma de San Luis Potosí, San Luis Potosí 78000, Mexico
| | - Emma S. Calderón-Aranda
- Toxicology Department, Centro de Investigación y Estudios Avanzados, IPN, México City 07360, Mexico
| | - Diana Patricia Portales-Pérez
- Laboratorio de microRNAs y Cáncer, Unidad Académica de Ciencias Biológicas, Universidad Autónoma de Zacatecas, Zacatecas 98066, Mexico
| | - Mariana Salgado-Bustamante
- Biochemistry Department, and Immunology, Department of Faculty of Medicine, UASLP, San Luis Potosí 78000, Mexico
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Shen Y, Xie G, Lin S, Zhu L, Zhang H, Yang Z, Cai Z. Metabolomics and proteomics study reveals the effects of benzo[a]pyrene on the viability and migration of KYSE-150 esophageal cells. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 824:153761. [PMID: 35151731 DOI: 10.1016/j.scitotenv.2022.153761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 01/29/2022] [Accepted: 02/05/2022] [Indexed: 06/14/2023]
Abstract
A representative polycyclic aromatic hydrocarbon, benzo[a]pyrene (B[a]P), has been widely detected in environmental compartments and is highly carcinogenic to humans. Oral ingestion of B[a]P is the dominant exposure pathway. The esophagus acts as the first contact point when B[a]P enters the human body. However, its role in the development of human esophageal cancer is rarely discussed. Herein, we employed untargeted metabolomics in combination with proteomics to explore B[a]P-related intracellular responses in human esophageal cell lines. Our results demonstrated that B[a]P exposure induced significant metabolic disorders, further leading to overproduction of reactive oxygen species (ROS) and disturbance of the cellular viability process and migration ability of esophageal cells. In response, glutathione (GSH) was consumed to meet the demand for cellular detoxification, and thioredoxin (TXN) was upregulated to balance the cellular redox. These alterations caused the reregulation of some specific protein families, including S100A proteins, ribosomal proteins, and histone H1 proteins. Such changes impeded the viability and migration of esophageal cells, which could adversely affect wound healing of the epithelium. These cellular responses indicate that B[a]P will cause serious cellular damage to esophageal cells and increase the carcinogenic risk even as a result of short-term exposure. SYNOPSIS: Our omics study demonstrated how benzo[a]pyrene hampered the migration of esophageal cells and proposed a plausible mechanism underlying its carcinogenicity, which may contribute to our understanding of environmental pollutants.
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Affiliation(s)
- Yuting Shen
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, China
| | - Guangshan Xie
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, China
| | - Siyi Lin
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, China
| | - Lin Zhu
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, China
| | - Hongna Zhang
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, China
| | - Zhu Yang
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, China.
| | - Zongwei Cai
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, China
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Wang C, Zhao F, Bai Y, Li C, Xu X, Kristiansen K, Zhou G. Proteomic Analysis of the Protective Effect of Eriodictyol on Benzo(a)pyrene-Induced Caco-2 Cytotoxicity. Front Nutr 2022; 9:839364. [PMID: 35308267 PMCID: PMC8927910 DOI: 10.3389/fnut.2022.839364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Accepted: 02/08/2022] [Indexed: 11/13/2022] Open
Abstract
We evaluated the possible protective effects of six polyphenols on benzo(a)pyrene (BaP)-induced cytotoxicity in Caco-2 cells. We show that treatment with quinic acid, ferulic acid, homovanillic acid, trolox and BaP decreased cell viability, whereas naringenin and eriodictyol affected viability in a bi-phasic manner with low concentrations decreasing viability whereas higher concentrations increase viability. Co-treatment with 20 μM eriodictyol or naringenin reduced BaP-induced cytotoxicity, including cell apoptosis, cell cycle progression, and oxidative stress. Our results show that the protective effect of eriodictyol was superior to that of naringenin. The potential protective mechanisms of eriodictyol on BaP-induced toxicity were investigated by proteomics. We identified 80 differentially expressed proteins (DEPs) with proteins associated with genetic information processing pathway representing the highest proportion and number of proteins responding to eriodictyol treatment, including key proteins such as RPA2, SNRPA, RAD23B, NUP155 and AARS. Our results provide new knowledge on how polyphenols may prevent BaP-induced carcinogenesis.
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Affiliation(s)
- Chong Wang
- College of Food Science and Technology, Nanjing Agricultural University, Key Laboratory of Meat Products Processing, Ministry of Agriculture, Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control, Nanjing, China
- Laboratory of Genomics and Molecular Biomedicine, Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - Fan Zhao
- Laboratory of Genomics and Molecular Biomedicine, Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - Yun Bai
- College of Food Science and Technology, Nanjing Agricultural University, Key Laboratory of Meat Products Processing, Ministry of Agriculture, Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control, Nanjing, China
| | - Chunbao Li
- College of Food Science and Technology, Nanjing Agricultural University, Key Laboratory of Meat Products Processing, Ministry of Agriculture, Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control, Nanjing, China
| | - Xinglian Xu
- College of Food Science and Technology, Nanjing Agricultural University, Key Laboratory of Meat Products Processing, Ministry of Agriculture, Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control, Nanjing, China
| | - Karsten Kristiansen
- Laboratory of Genomics and Molecular Biomedicine, Department of Biology, University of Copenhagen, Copenhagen, Denmark
- BGI-Shenzhen, Shenzhen, China
- Institute of Metagenomics, Qingdao-Europe Advanced Institute for Life Sciences, BGI-Qingdao, Qingdao, China
- Karsten Kristiansen
| | - Guanghong Zhou
- College of Food Science and Technology, Nanjing Agricultural University, Key Laboratory of Meat Products Processing, Ministry of Agriculture, Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control, Nanjing, China
- *Correspondence: Guanghong Zhou
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Yao M, Li F, Xu L, Ma L, Zhang S. 24-Dehydrocholesterol Reductase alleviates oxidative damage-induced apoptosis in alveolar epithelial cells via regulating Phosphatidylinositol-3-Kinase/Protein Kinase B activation. Bioengineered 2021; 13:155-163. [PMID: 34949154 PMCID: PMC8805900 DOI: 10.1080/21655979.2021.2011634] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Apoptosis of alveolar epithelial cells during acute lung injury (ALI)/acute respiratory distress syndrome (ARDS) is a critical pathological event that seriously endangers the health of patients. Suppressing apoptosis of alveolar epithelial cells was shown to alleviate functional damage of lung, and modulator of the reactive oxygen species (ROS)-induced apoptosis becomes a promising approach to the ALI therapy. Previous little studies showed that DHCR24 possessed anti-oxidative and anti-apoptotic property in ALI. Thus, H2O2 was utilized to mimic oxidative damage in vitro in alveolar epithelial cell line A549 in the present study. Our results exhibited that H2O2 treatment of A549 cells reduced the level of SOD and increased the level of ROS. Moreover, H2O2 inhibited Bcl-2 expression in A549 cells, but increased Bax and the activity of Caspase-3. In addition, the apoptosis rate in the H2O2 treatment group also increased significantly. And the expression of 24-dehydrocholesterol reductase (DHCR24) was markedly reduced in the H2O2 treatment group. Overexpression of DHCR24 can remarkably inhibit H2O2-induced oxidative stress and apoptosis. We found that overexpression of DHCR24 increased the phosphorylation level of PI3K and AKT, however, the PI3K inhibitor LY294002 (LY) eliminated the protective effect of DHCR24 in ALI. DHCR24 was down-regulated in H2O2-induced ALI, and overexpression of DHCR24 could inhibit H2O2-induced oxidative stress and apoptosis of A549 cells by activating the Phosphatidylinositol-3-Kinase/Protein Kinase B (PI3K/AKT) signaling pathway. The above exhibited a protective effect of DHCR24 on alveolar epithelial cells exposed to oxidative stress-mediated apoptosis and provided a novel therapeutic method for ALI.
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Affiliation(s)
- Ming Yao
- Department of Critical Care Medicine, Wuhan Puren Hospital, Wuhan, China
| | - Feng Li
- Department of Critical Care Medicine, Wuhan Puren Hospital, Wuhan, China
| | - Liang Xu
- Department of Critical Care Medicine, Wuhan Puren Hospital, Wuhan, China
| | - Li Ma
- Department of Cardiovascular Medical, Tianyou Hospital Affiliated to Wuhan University of Science and Technology, Wuhan, China
| | - Shutong Zhang
- Department of Medical Image, The Central Hospital of Wuhan, Wuhan, China
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Alshanwani AR, Faddah LM, Hagar H, Alhusaini AM, Shaheen S, Mohammad RA, Alharbi FMB, AlHarthii A, Badr AM. The beneficial effects of antioxidants combination on cardiac injury induced by tetrachloromethane. Drug Chem Toxicol 2020; 45:1364-1372. [PMID: 33059470 DOI: 10.1080/01480545.2020.1831012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/06/2022]
Abstract
The purpose of this research was to evaluate the efficacy of carsil (CAR) either alone or in combination with α-tocopherol (α-TOCO) and/or turmeric (TUMR) against tetrachloromethane (TCM)-induced cardiomyocyte injury in rats. Administration of CAR either alone or in combination with α-TOCO and/or TUMR post-TCM injection, significantly mitigated the increases in serum troponin T, creatine kinase-MB (CK-MB) as well as interleukin-6 (IL-6), interferon γ (IFN-γ), tumor necrosis factor-α (TNF-α), C-reactive protein (CRP). They also decline the elevation of caspase-3, vascular endothelial growth factor (VEGF) protein expression as well as DNA damage in cardiac tissues induced by TCM. The biochemical results were confirmed by histopathological investigation. Conclusion: The combination of the three antioxidants showed greater cardioprotective potential, compared to individual drugs. Therefore, this combination may be recommended as a complementary therapy to antagonize cardiac injury induced by different insults.
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Affiliation(s)
- Aliah R Alshanwani
- College of Medicine, Pharmacology and Physiology Department, King Saud University, Riyadh, Saudi Arabia
| | - Laila M Faddah
- Pharmacology and Toxicology Department, Faculty of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Hanan Hagar
- College of Medicine, Pharmacology and Physiology Department, King Saud University, Riyadh, Saudi Arabia
| | - Ahlam M Alhusaini
- Pharmacology and Toxicology Department, Faculty of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Sameerah Shaheen
- College of Medicine, Anatomy Department and Stem Cell Unit, King Saud University, Riyadh, Saudi Arabia
| | - Raeesa A Mohammad
- College of Science, Biochemistry Department, King Saud University, Riyadh, Saudi Arabia
| | - Fatima M B Alharbi
- College of Science, Biochemistry Department, King Saud University, Riyadh, Saudi Arabia
| | - Alaa AlHarthii
- Pharmacology and Toxicology Department, Faculty of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Amira M Badr
- Pharmacology and Toxicology Department, Faculty of Pharmacy, King Saud University, Riyadh, Saudi Arabia.,Pharmacology and Toxicology Department, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
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Deng J, Chen X, Wang D, Song Y, Chen Y, Ouyang D, Liang Y, Sun Y, Li M. Protective effect of hawthorn extract against genotoxicity induced by benzo(<alpha>)pyrene in C57BL/6 mice. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 200:110761. [PMID: 32470682 DOI: 10.1016/j.ecoenv.2020.110761] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 05/11/2020] [Accepted: 05/13/2020] [Indexed: 06/11/2023]
Abstract
Benzo(<alpha>)pyrene [B(<alpha>)P], widely originated from environmental pollution or food process such as roasting and frying, is a strong mutagen and potent carcinogen. Utilization of hawthorn has been reported against physical mutagens. Our study found that hawthorn extract (HE) contained abundant phenolic compounds, wherein chlorogenic acid was 2.78 mg/g, procyanidine B2 was 3.58 mg/g, epicatechin was 2.99 mg/g DW, which may contribute to anti-genotoxicity activity. So, the role of HE against B(<alpha>)P-induced genotoxicity in C57BL/6 mice was further assessed. Fifty mice were distributed into five groups: control group, B(<alpha>)P group (30 mg/kg, i.p.), B(<alpha>)P + HE-L group (100 mg/kg, i.g.), B(<alpha>)P + HE-M group (200 mg/kg, i.g.), B(<alpha>)P + HE-H group (400 mg/kg, i.g.). Mice were orally administered with solutions of HE for 10 days and injected intraperitoneally with B(<alpha>)P for 3 days from the 8th day. Results showed that B(<alpha>)P can induce significantly pathological damage in liver, lung and spleen, as well as decrease white blood cells (WBCs). Remarkably elevated levels of reactive oxygen species (ROS), DNA strand breaks (DSBs) and G1 cell cycle arrest were also found in B(<alpha>)P group, with upregulated expressions of p-H2AX, p-p53 and p21 in bone marrow cells. With administration of HE, liver, lung and spleen injury significantly mitigated, while WBCs were evidently increased in B(<alpha>)P-treated mice. Consistently, HE markedly reduced level of ROS, DSBs and G1 cell cycle arrest accompanied by reducing expressions of p-H2AX, p-p53 and p21 in bone marrow cells. Combined, these results indicated a protective role of HE on B(<alpha>)P-induced genotoxicity.
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Affiliation(s)
- Jie Deng
- Guangdong Provincial Key Lab of Food Safety and Quality, South China Agricultural University, Guangzhou, Guangdong, 510642, PR China; College of Food Science, South China Agricultural University, Guangzhou, 510642, PR China
| | - Ximiao Chen
- Guangdong Provincial Key Lab of Food Safety and Quality, South China Agricultural University, Guangzhou, Guangdong, 510642, PR China; College of Food Science, South China Agricultural University, Guangzhou, 510642, PR China
| | - Da Wang
- Guangdong Provincial Key Lab of Food Safety and Quality, South China Agricultural University, Guangzhou, Guangdong, 510642, PR China; College of Food Science, South China Agricultural University, Guangzhou, 510642, PR China
| | - Ya Song
- Guangdong Provincial Key Lab of Food Safety and Quality, South China Agricultural University, Guangzhou, Guangdong, 510642, PR China; College of Food Science, South China Agricultural University, Guangzhou, 510642, PR China
| | - Yongchun Chen
- Guangdong Provincial Key Lab of Food Safety and Quality, South China Agricultural University, Guangzhou, Guangdong, 510642, PR China; College of Food Science, South China Agricultural University, Guangzhou, 510642, PR China
| | - Dongmei Ouyang
- Guangdong Provincial Key Lab of Food Safety and Quality, South China Agricultural University, Guangzhou, Guangdong, 510642, PR China; College of Food Science, South China Agricultural University, Guangzhou, 510642, PR China
| | - Yuxuan Liang
- Guangdong Provincial Key Lab of Food Safety and Quality, South China Agricultural University, Guangzhou, Guangdong, 510642, PR China; College of Food Science, South China Agricultural University, Guangzhou, 510642, PR China
| | - Yuanming Sun
- Guangdong Provincial Key Lab of Food Safety and Quality, South China Agricultural University, Guangzhou, Guangdong, 510642, PR China; College of Food Science, South China Agricultural University, Guangzhou, 510642, PR China.
| | - Meiying Li
- Guangdong Provincial Key Lab of Food Safety and Quality, South China Agricultural University, Guangzhou, Guangdong, 510642, PR China; College of Food Science, South China Agricultural University, Guangzhou, 510642, PR China.
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Jee SC, Kim M, Kim KS, Kim HS, Sung JS. Protective Effects of Myricetin on Benzo[a]pyrene-Induced 8-Hydroxy-2'-Deoxyguanosine and BPDE-DNA Adduct. Antioxidants (Basel) 2020; 9:antiox9050446. [PMID: 32455619 PMCID: PMC7278665 DOI: 10.3390/antiox9050446] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/15/2020] [Accepted: 05/19/2020] [Indexed: 02/05/2023] Open
Abstract
Benzo[a]pyrene (B[a]P), a group 1 carcinogen, induces mutagenic DNA adducts. Myricetin is present in many natural foods with diverse biological activities, such as anti-oxidative and anti-cancer activities. The aim of this study was to investigate the protective effects of myricetin against B[a]P-induced toxicity. Treatment of B[a]P induced cytotoxicity on HepG2 cells, whereas co-treatment of myricetin with B[a]P reduced the formation of the B[a]P-7,8-dihydrodiol-9,10-epoxide (BPDE)-DNA adduct, which recovered cell viability. Furthermore, we found a protective effect of myricetin against B[a]P-induced genotoxicity in rats, via myricetin-induced inhibition of 8-hydroxy-2′-deoxyguanosine (8-OHdG) and BPDE-DNA adduct formation in the liver, kidney, colon, and stomach tissue. This inhibition was more prominent in the liver than in other tissues. Correspondingly, myricetin regulated the phase I and II enzymes that inhibit B[a]P metabolism and B[a]P metabolites conjugated with DNA by reducing and inducing CYP1A1 and glutathione S-transferase (GST) expression, respectively. Taken together, this showed that myricetin attenuated B[a]P-induced genotoxicity via regulation of phase I and II enzymes. Our results suggest that myricetin is anti-genotoxic, and prevents oxidative DNA damage and BPDE-DNA adduct formation via regulation of phase I and II enzymes.
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Affiliation(s)
- Seung-Cheol Jee
- Department of Life Science, Dongguk University-Seoul, Biomedi Campus, 32 Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do 10326, Korea; (S.-C.J.); (M.K.)
| | - Min Kim
- Department of Life Science, Dongguk University-Seoul, Biomedi Campus, 32 Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do 10326, Korea; (S.-C.J.); (M.K.)
| | - Kyeong Seok Kim
- Department of Division of Toxicology, School of Pharmacy, Sungkyunkwan University-Suwon, Gyeonggi-do 16419, Korea; (K.S.K.); (H.-S.K.)
| | - Hyung-Sik Kim
- Department of Division of Toxicology, School of Pharmacy, Sungkyunkwan University-Suwon, Gyeonggi-do 16419, Korea; (K.S.K.); (H.-S.K.)
| | - Jung-Suk Sung
- Department of Life Science, Dongguk University-Seoul, Biomedi Campus, 32 Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do 10326, Korea; (S.-C.J.); (M.K.)
- Correspondence: ; Tel.: +82-31-961-5132; Fax: +82-31-961-5108
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Jee SC, Kim M, Sung JS. Modulatory Effects of Silymarin on Benzo[a]pyrene-Induced Hepatotoxicity. Int J Mol Sci 2020; 21:ijms21072369. [PMID: 32235460 PMCID: PMC7177818 DOI: 10.3390/ijms21072369] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 03/26/2020] [Accepted: 03/28/2020] [Indexed: 12/14/2022] Open
Abstract
Benzo[a]pyrene (B[a]P), a polycyclic aromatic hydrocarbon, is a group 1 carcinogen that introduces mutagenic DNA adducts into the genome. In this study, we investigated the molecular mechanisms underlying the involvement of silymarin in the reduction of DNA adduct formation by B[a]P-7,8-dihydrodiol-9,10-epoxide (BPDE), induced by B[a]P. B[a]P exhibited toxicity in HepG2 cells, whereas co-treatment of the cells with B[a]P and silymarin reduced the formation of BPDE-DNA adducts, thereby increasing cell viability. Determination of the level of major B[a]P metabolites in the treated cells showed that BPDE levels were reduced by silymarin. Nuclear factor erythroid 2-related factor 2 (Nrf2) and pregnane X receptor (PXR) were found to be involved in the activation of detoxifying genes against B[a]P-mediated toxicity. Silymarin did not increase the expression of these major transcription factors, but greatly facilitated their nuclear translocation. In this manner, treatment of HepG2 cells with silymarin modulated detoxification enzymes through NRF2 and PXR to eliminate B[a]P metabolites. Knockdown of Nrf2 abolished the preventive effect of silymarin on BPDE-DNA adduct formation, indicating that activation of the Nrf2 pathway plays a key role in preventing B[a]P-induced genotoxicity. Our results suggest that silymarin has anti-genotoxic effects, as it prevents BPDE-DNA adduct formation by modulating the Nrf2 and PXR signaling pathways.
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Affiliation(s)
| | | | - Jung-Suk Sung
- Correspondence: ; Tel.: +82-31-961-5132; Fax: +82-31-961-5108
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Wang K, Qi Q, Zhang F, Zhang Y, Yang M, Zhao Z. S-Allylcysteine as an Inhibitor of Benzo(a)pyrene-Induced Precancerous Carcinogenesis in Human Lung Cells via Inhibiting Activation of Nuclear Factor-Kappa B. Nat Prod Commun 2019. [DOI: 10.1177/1934578x19896915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Oil-soluble organosulfur compounds in garlic are known for the anticancer effect. However, there are limited experimental studies to describe the effect of S-allylcysteine (SAC), a main water-soluble derivative of garlic, in carcinogenesis. This study investigates the prevention function of SAC on carcinogen benzo(a)pyrene (B(a)P)-induced precancerous activity in human lung cells (A549). A549 cells were either pretreated (PreTM) or concurrently treated (CoTM) with 1 μM B(a)P and either 10 or 50 μM SAC. The 50 μM CoTM group inhibited B(a)P-induced cell proliferation by approximately 100%. The 50 μM SAC CoTM and PreTM inhibited the B(a)P-induced G2/M phase shift by 119% and 100%, respectively. Furthermore, the SAC PreTM exhibited the potential to reduce the generation of reactive oxygen species (ROS) in cells relative to the B(a)P group by approximately 100%. The CoTM and PreTM elevated superoxide dismutase (SOD) by at least 70% compared with B(a)P group. In this study, we demonstrated that the mechanisms involved in the inhibitory role of SAC in B(a)P-induced carcinogenesis, including suppression of cell proliferation and DNA damage, cell cycle regulation, attenuation of ROS formation, increase of SOD activity, and inhibition of nuclear factor-kappa B (NF-κB) activity, which indicated that SAC is potentially a novel therapeutic candidate for the prevention and treatment of B(a)P-induced human lung cancer.
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Affiliation(s)
- Kaiming Wang
- School of Biological Science and Technology, University of Jinan, Shandong, P.R. China
- Engineering Laboratory of Chemical Resources Utilization in South Xinjiang of Xinjiang Production and Construction Corps, Tarim University, Alar, China
- School of Pharmaceutical Sciences, Shandong University, Jinan, P.R. China
| | - Qiuchen Qi
- Department of Clinical Laboratory, The Second Hospital of Shandong University, Jinan, P.R. China
| | - Fang Zhang
- School of Pharmaceutical Sciences, Shandong University, Jinan, P.R. China
| | - Yongchun Zhang
- School of Pharmaceutical Sciences, Shandong University, Jinan, P.R. China
- School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology, Jinan, P.R. China
| | - Min Yang
- Shandong Xinhua Pharmaceutical Company Limited, Zibo, P.R. China
| | - Zhongxi Zhao
- School of Pharmaceutical Sciences, Shandong University, Jinan, P.R. China
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11
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Li X, He S, Gao C, Deng H, Liu Y, Li C, Yuan L, Luo Y. Isoorientin attenuates benzo[a]pyrene-induced liver injury by inhibiting autophagy and pyroptosis in vitro and vivo. FOOD AGR IMMUNOL 2019. [DOI: 10.1080/09540105.2019.1638888] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Affiliation(s)
- Xueyi Li
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi’an, People’s Republic of China
| | - Shenyuan He
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi’an, People’s Republic of China
| | - Chunxia Gao
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi’an, People’s Republic of China
| | - Hong Deng
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi’an, People’s Republic of China
| | - Yongfeng Liu
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi’an, People’s Republic of China
| | - Cuiqin Li
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi’an, People’s Republic of China
| | - Li Yuan
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi’an, People’s Republic of China
| | - Ying Luo
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi’an, People’s Republic of China
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12
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Nakagawa M, Uno S, Iriyama N, Matsunawa M, Makishima M, Takeuchi J, Tsuboi I, Hatta Y, Takei M. Combined treatment with benzo[a]pyrene and 1α,25-dihydroxyvitamin D 3 induces expression of plasminogen activator inhibitor 1 in monocyte/macrophage-derived cells. Toxicol Appl Pharmacol 2018. [PMID: 29524502 DOI: 10.1016/j.taap.2018.03.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Benzo[a]pyrene (BaP) is an environmental pollutant found in cigarette smoke and is implicated as a causative agent of tobacco-related diseases, such as arteriosclerosis. In contrast, vitamin D signaling, which is principally mediated by conversion of vitamin D to the active form, 1α,25-dihydroxyvitamin D3 [1,25(OH)2D3], decreases cardiovascular disease risk. However, combined treatment with BaP and 1,25(OH)2D3 enhances BaP toxicity, including BaP-DNA adduct formation. We further investigated the cross-talk between BaP and 1,25(OH)2D3 signaling pathways, and found that combined treatment with these compounds induces mRNA and protein expression of plasminogen activator inhibitor 1 (PAI-1) in monocyte/macrophage-derived THP-1 and U937 cells. Protein synthesis inhibitor treatment did not inhibit induction of the PAI-1 gene (SERPINE1) in these cells. BaP plus 1,25(OH)2D3 induced differentiation markers, inhibited cellular proliferation, and induced apoptosis and oxidative stress in these cells. Reactive oxygen species scavenger treatment suppressed apoptosis but not SERPINE1 induction in cells treated with BaP plus 1,25(OH)2D3. Thus, combined treatment with BaP and 1,25(OH)2D3 induced SERPINE1 mRNA expression in these cells through a mechanism that does not require de novo protein synthesis or reactive oxygen species production. These findings suggest that induction of the proinflammatory factor PAI-1 plays a role in BaP toxicity. Interestingly, PAI-1 knockdown decreased expression of the cell surface antigen CD14, a monocytic differentiation marker, in THP-1 cells treated with BaP plus 1,25(OH)2D3. PAI-1 induction may also be related to a function of monocytes/macrophages in response to xenobiotic and vitamin D signaling.
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Affiliation(s)
- Masaru Nakagawa
- Division of Hematology and Rheumatology, Department of Medicine, Nihon University School of Medicine, 30-1 Oyaguchi-kamicho, Itabashi-ku, Tokyo 173-8610, Japan
| | - Shigeyuki Uno
- Division of Biochemistry, Department of Biomedical Sciences, Nihon University School of Medicine, 30-1 Oyaguchi-kamicho, Itabashi-ku, Tokyo 173-8610, Japan
| | - Noriyoshi Iriyama
- Division of Hematology and Rheumatology, Department of Medicine, Nihon University School of Medicine, 30-1 Oyaguchi-kamicho, Itabashi-ku, Tokyo 173-8610, Japan
| | - Manabu Matsunawa
- Division of Biochemistry, Department of Biomedical Sciences, Nihon University School of Medicine, 30-1 Oyaguchi-kamicho, Itabashi-ku, Tokyo 173-8610, Japan
| | - Makoto Makishima
- Division of Biochemistry, Department of Biomedical Sciences, Nihon University School of Medicine, 30-1 Oyaguchi-kamicho, Itabashi-ku, Tokyo 173-8610, Japan.
| | - Jin Takeuchi
- Division of Hematology and Rheumatology, Department of Medicine, Nihon University School of Medicine, 30-1 Oyaguchi-kamicho, Itabashi-ku, Tokyo 173-8610, Japan
| | - Isao Tsuboi
- Division of Anatomical Science, Department of Functional Morphology, Nihon University School of Medicine, 30-1 Oyaguchi-kamicho, Itabashi-ku, Tokyo 173-8610, Japan
| | - Yoshihiro Hatta
- Division of Hematology and Rheumatology, Department of Medicine, Nihon University School of Medicine, 30-1 Oyaguchi-kamicho, Itabashi-ku, Tokyo 173-8610, Japan
| | - Masami Takei
- Division of Hematology and Rheumatology, Department of Medicine, Nihon University School of Medicine, 30-1 Oyaguchi-kamicho, Itabashi-ku, Tokyo 173-8610, Japan
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13
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Speciale A, Zena R, Calabrò C, Bertuccio C, Aragona M, Saija A, Trombetta D, Cimino F, Lo Cascio P. Experimental exposure of blue mussels (Mytilus galloprovincialis) to high levels of benzo[a]pyrene and possible implications for human health. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 150:96-103. [PMID: 29268120 DOI: 10.1016/j.ecoenv.2017.12.038] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 12/13/2017] [Accepted: 12/14/2017] [Indexed: 06/07/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are lipophilic compounds able to accumulate in the food chain. Mussels showed to bioaccumulate contaminants, such as PAHs, so that recurrent consumption of such contaminated food represents a risk for human health. This study was aimed to elucidate if acute exposure of Mediterranean blue mussel (Mytilus galloprovincialis), a bivalve of great economic importance in several countries, to a PAH, benzo[a]pyrene (B[a]P), at doses able to induce cytochrome P450 1A (CYP1A) and pathological changes in mussel gills, can produce accumulation in soft tissue. We explored the cytotoxic effects (cell viability, DNA laddering, and glutathione levels) of in vitro exposure of human peripheral blood mononuclear cells (PBMCs) to organic extracts obtained from blue mussels previously exposed for 12 and 72h via water to B[a]P (0.5-1mg/L). In our experimental conditions, B[a]P induced CYP1A induction and morphological changes in mussel gills and a significant B[a]P accumulation in soft tissue. Conversely, exposing PBMCs to organic extracts obtained from contaminated mussels, resulted in a significant reduction of cell viability and cell glutathione content, and in an increase in DNA laddering. This confirms that consumption of mussels from B[a]P polluted waters might affect human health. Our data lead us to suggest that CYP1A activity in mussel gills may be useful (more than the amount of detected PAHs in the mussel edible tissue) as a marker in assessment of risk for health of consumers exposed to PAHs through ingestion of shellfish.
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Affiliation(s)
- A Speciale
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98168 Messina, Italy
| | - R Zena
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98168 Messina, Italy
| | - C Calabrò
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98168 Messina, Italy
| | - C Bertuccio
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98168 Messina, Italy
| | - M Aragona
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98168 Messina, Italy
| | - A Saija
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98168 Messina, Italy
| | - D Trombetta
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98168 Messina, Italy
| | - F Cimino
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98168 Messina, Italy.
| | - P Lo Cascio
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98168 Messina, Italy
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14
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Kinetics of ROS generation induced by polycyclic aromatic hydrocarbons and organic extracts from ambient air particulate matter in model human lung cell lines. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2018; 827:50-58. [DOI: 10.1016/j.mrgentox.2018.01.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Revised: 11/30/2017] [Accepted: 01/12/2018] [Indexed: 01/08/2023]
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15
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Vicentini M, Morais GS, Rebechi-Baggio D, Richardi VS, Santos GS, Cestari MM, Navarro-Silva MA. Benzo(a)pyrene Exposure Causes Genotoxic and Biochemical Changes in the Midge Larvae of Chironomus sancticaroli Strixino & Strixino (Diptera: Chironomidae). NEOTROPICAL ENTOMOLOGY 2017; 46:658-665. [PMID: 28332138 DOI: 10.1007/s13744-017-0505-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Accepted: 02/21/2017] [Indexed: 06/06/2023]
Abstract
Benzo(a)pyrene (BaP) is a carcinogenic polycyclic aromatic hydrocarbon, also found in nature due to human activities. BaP adheres to sediments showing toxic effects on benthic organisms, including midge larvae of the family Chironomidae. We tested for toxic effects of benzo(a)pyrene on Chironomus sancticaroli Strixino & Strixino 1981 using biochemical and genotoxic biomarkers, to identify changes in metabolic and antioxidant pathways, besides neurotoxic and DNA damage. Enzyme activity was compared by exposing larvae to four nominal concentrations (0.47, 2.13, 3.41, and 4.73 μg l-1) and DNA damage to two concentrations (0.47 and 4.73 μg l-1), after exposure at 24, 48, 72, and 96 h. BaP caused neurotoxic effect, showing acetylcholinesterase alterations at different treatments. Changes in the biotransformation pathway were detected, with an increased activity of alpha and beta esterase in 48 h and reduction of glutathione-S-transferase activity in all periods at the highest concentrations. Damage to the antioxidant system was observed by the increase of the superoxide dismutase and reduction of the catalase, in 48 h. Genotoxicity was detected by an increased DNA damage at 48 and 72 h. The lowest concentration (0.47 μg l-1), even presenting low mortality, also altered the biochemical parameters of the larvae. Thus, these results indicate that BaP causes metabolic, neurotoxic, and genotoxic effects on C. sancticaroli, even at low concentrations and short-term exposure. BaP can cause damage of immature invertebrates, and the ecological dynamics can be affected, since these organisms have trophic importance in the aquatic environment.
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Affiliation(s)
- M Vicentini
- Depto de Zoologia, Univ Federal do Paraná, Caixa Postal 19020, 81531-980, Curitiba, Paraná, Brasil
| | - G S Morais
- Depto de Zoologia, Univ Federal do Paraná, Caixa Postal 19020, 81531-980, Curitiba, Paraná, Brasil
| | - D Rebechi-Baggio
- Depto de Zoologia, Univ Federal do Paraná, Caixa Postal 19020, 81531-980, Curitiba, Paraná, Brasil
| | - V S Richardi
- Depto de Zoologia, Univ Federal do Paraná, Caixa Postal 19020, 81531-980, Curitiba, Paraná, Brasil
| | - G S Santos
- Depto de Genética, Univ Federal do Paraná, Curitiba, Paraná, Brasil
| | - M M Cestari
- Depto de Genética, Univ Federal do Paraná, Curitiba, Paraná, Brasil
| | - M A Navarro-Silva
- Depto de Zoologia, Univ Federal do Paraná, Caixa Postal 19020, 81531-980, Curitiba, Paraná, Brasil.
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16
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Benzo[a]pyrene-induced metabolic shift from glycolysis to pentose phosphate pathway in the human bladder cancer cell line RT4. Sci Rep 2017; 7:9773. [PMID: 28851999 PMCID: PMC5575001 DOI: 10.1038/s41598-017-09936-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Accepted: 08/01/2017] [Indexed: 12/16/2022] Open
Abstract
Benzo[a]pyrene (B[a]P), a well-known polyaromatic hydrocarbon, is known for its lung carcinogenicity, however, its role in bladder cancer development is still discussed. Comparative two-dimensional blue native SDS-PAGE analysis of protein complexes isolated from subcellular fractions of 0.5 µM B[a]P-exposed cells indicated a differential regulation of proteins involved in carbohydrate, fatty acid, and nucleotide metabolism, suggesting a possible metabolic flux redistribution. It appeared that B[a]P exposure led to a repression of enzymes (fructose-bisphosphate aldolase A, glucose-6-phosphate isomerase, lactate dehydrogenase) involved in glycolysis, and an up-regulation of proteins (glucose-6-phosphate 1-dehydrogenase, 6-phosphogluconolactonase) catalyzing the pentose phosphate pathway and one carbon metabolism (10-formyltetrahydrofolate dehydrogenase, bifunctional purine biosynthesis protein). Untargeted metabolomics further supported the proteomic data, a lower concentration of glycolytic metabolite was observed as compared to glutamine, xylulose and fatty acids. The analysis of the glutathione and NADPH/NADP+ content of the cells revealed a significant increase of these cofactors. Concomitantly, we did not observe any detectable increase in the production of ROS. With the present work, we shed light on an early phase of the metabolic stress response in which the urothelial cells are capable of counteracting oxidative stress by redirecting the metabolic flux from glycolysis to pentose phosphate pathway.
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17
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Omidian K, Rafiei H, Bandy B. Polyphenol inhibition of benzo[a]pyrene-induced oxidative stress and neoplastic transformation in an in vitro model of carcinogenesis. Food Chem Toxicol 2017; 106:165-174. [DOI: 10.1016/j.fct.2017.05.037] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 05/16/2017] [Accepted: 05/18/2017] [Indexed: 12/18/2022]
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18
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Warnakulasuriya SN, Ziaullah, Rupasinghe HPV. Novel long chain fatty acid derivatives of quercetin-3-O-glucoside reduce cytotoxicity induced by cigarette smoke toxicants in human fetal lung fibroblasts. Eur J Pharmacol 2016; 781:128-38. [PMID: 27071958 DOI: 10.1016/j.ejphar.2016.04.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 03/26/2016] [Accepted: 04/07/2016] [Indexed: 01/05/2023]
Abstract
Smoking has become a global health concern due to its association with many disease conditions, such as chronic obstructive pulmonary disease (COPD), cardiovascular diseases (CVD) and cancer. Flavonoids are plant polyphenolic compounds, studied extensively for their antioxidant, anti-inflammatory, and anti-carcinogenic properties. Quercetin-3-O-glucoside (Q3G) is a flavonoid which is widely found in plants. Six novel long chain fatty acid [stearic acid, oleic acid, linoleic acid, α-linolenic acid (ALA), eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA)] derivatives of Q3G were evaluated for their potential in protecting human lung fibroblasts against cytotoxicity induced by selected cigarette smoke toxicants: 4-(methylnitrosoamino)-1-(3-pyridinyl)-1-butanone (NNK), benzo-α-pyrene (BaP), nicotine and chromium (Cr[VI]). Nicotine and Cr[VI] induced toxicity in fibroblasts and reduced the percentage of viable cells, while BaP and NNK did not affect cell viability. The fatty acid derivatives of Q3G provided protection against nicotine- and Cr[VI]-induced cell death and membrane lipid peroxidation. Based on the evaluation of inflammatory markers of cyclooxygenase-2 (COX-2) and prostaglandin E2 (PGE2), the fatty acid derivatives of Q3G were found to be effective in lowering the inflammatory response. Overall, these novel fatty acid esters of Q3G warrant further investigation as potential cytoprotective agents.
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Affiliation(s)
- Sumudu N Warnakulasuriya
- Department of Environmental Sciences, Faculty of Agriculture, Dalhousie University, Truro, NS B2N 5E3, Canada
| | - Ziaullah
- Department of Environmental Sciences, Faculty of Agriculture, Dalhousie University, Truro, NS B2N 5E3, Canada
| | - H P Vasantha Rupasinghe
- Department of Environmental Sciences, Faculty of Agriculture, Dalhousie University, Truro, NS B2N 5E3, Canada.
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19
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Jalalvand AR, Gholivand MB, Goicoechea HC, Skov T, Mansouri K. Mimicking enzymatic effects of cytochrome P450 by an efficient biosensor for in vitro detection of DNA damage. Int J Biol Macromol 2015; 79:1004-10. [DOI: 10.1016/j.ijbiomac.2015.05.047] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Revised: 05/24/2015] [Accepted: 05/25/2015] [Indexed: 10/24/2022]
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20
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Rao PSS, Kumar S. Polycyclic aromatic hydrocarbons and cytochrome P450 in HIV pathogenesis. Front Microbiol 2015; 6:550. [PMID: 26082767 PMCID: PMC4451413 DOI: 10.3389/fmicb.2015.00550] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Accepted: 05/19/2015] [Indexed: 12/19/2022] Open
Abstract
High prevalence of cigarette smoking in HIV patients is associated with increased HIV pathogenesis and disease progression. While the effect of smoking on the occurrence of lung cancer has been studied extensively, the association between smoking and HIV pathogenesis is poorly studied. We have recently shown the possible role of cytochrome P450 (CYP) in smoking/nicotine-mediated viral replication. In this review, we focus on the potential role of CYP pathway in polycyclic aromatic hydrocarbons (PAH), important constituents of cigarette smoke, mediated HIV pathogenesis. More specifically, we will discuss the role of CYP1A1 and CYP1B1, which are the major PAH-activating CYP enzymes. Our results have shown that treatment with cigarette smoke condensate (CSC) increases viral replication in HIV-infected macrophages. CSC contains PAH, which are known to be activated by CYP1A1 and CYP1B1 into procarcinogens/toxic metabolites. The expression of these CYPs is regulated by aryl hydrocarbon receptors (AHR), the cellular target of PAH, and an important player in various diseases including cancer. We propose that PAH/AHR-mediated CYP pathway is a novel target to develop new interventions for HIV positive smokers.
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Affiliation(s)
- P S S Rao
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center , Memphis, TN, USA
| | - Santosh Kumar
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center , Memphis, TN, USA
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Silymarin as a Natural Antioxidant: An Overview of the Current Evidence and Perspectives. Antioxidants (Basel) 2015; 4:204-47. [PMID: 26785346 PMCID: PMC4665566 DOI: 10.3390/antiox4010204] [Citation(s) in RCA: 305] [Impact Index Per Article: 33.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2015] [Revised: 02/06/2015] [Accepted: 03/09/2015] [Indexed: 12/16/2022] Open
Abstract
Silymarin (SM), an extract from the Silybum marianum (milk thistle) plant containing various flavonolignans (with silybin being the major one), has received a tremendous amount of attention over the last decade as a herbal remedy for liver treatment. In many cases, the antioxidant properties of SM are considered to be responsible for its protective actions. Possible antioxidant mechanisms of SM are evaluated in this review. (1) Direct scavenging free radicals and chelating free Fe and Cu are mainly effective in the gut. (2) Preventing free radical formation by inhibiting specific ROS-producing enzymes, or improving an integrity of mitochondria in stress conditions, are of great importance. (3) Maintaining an optimal redox balance in the cell by activating a range of antioxidant enzymes and non-enzymatic antioxidants, mainly via Nrf2 activation is probably the main driving force of antioxidant (AO) action of SM. (4) Decreasing inflammatory responses by inhibiting NF-κB pathways is an emerging mechanism of SM protective effects in liver toxicity and various liver diseases. (5) Activating vitagenes, responsible for synthesis of protective molecules, including heat shock proteins (HSPs), thioredoxin and sirtuins and providing additional protection in stress conditions deserves more attention. (6) Affecting the microenvironment of the gut, including SM-bacteria interactions, awaits future investigations. (7) In animal nutrition and disease prevention strategy, SM alone, or in combination with other hepatho-active compounds (carnitine, betaine, vitamin B12, etc.), might have similar hepatoprotective effects as described in human nutrition.
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22
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Song W, Hu P, Shan Y, Du M, Liu A, Ye R. Cartilage polysaccharide induces apoptosis in K562 cells through a reactive oxygen species-mediated caspase pathway. Food Funct 2014; 5:2486-93. [PMID: 25112602 DOI: 10.1039/c4fo00476k] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, a polysaccharide (PS) was successfully extracted from porcine cartilage and its effect on chronic myeloid leukemia was examined using human K562 cells. The results of cell proliferation assays indicated that the PS inhibited cancer cell growth at different concentrations. Morphological and biochemical changes characteristic of apoptosis were observed and confirmed by PI staining and TUNEL assay. The nuclear DNA, RNA and proteins of the cancer cells subjected to PS treatment were irreversibly destroyed by reactive oxygen species (ROS), additionally, the ROS effected on the cells directly. The apoptotic signals altered the permeability of the mitochondrial outer membrane, thereby resulted in the release of apoptotic factors into the cytoplasm that induced apoptosis. As caspase-3/7, 8 and 9 were expressed, it was speculated that both intrinsic and extrinsic pathways were involved in the PS-induced apoptosis.
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Affiliation(s)
- Wei Song
- School of Food Science and Engineering, Harbin Institute of Technology, Harbin 150090, China.
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23
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Al-Rasheed NM, Al-Rasheed NM, Faddah L, Mohamed AM, Mohammad RA, Al-Amin M. Potential impact of silymarin in combination with chlorogenic acid and/or melatonin in combating cardiomyopathy induced by carbon tetrachloride. Saudi J Biol Sci 2014; 21:265-74. [PMID: 24955012 PMCID: PMC4061402 DOI: 10.1016/j.sjbs.2013.09.006] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2013] [Revised: 09/08/2013] [Accepted: 09/10/2013] [Indexed: 11/16/2022] Open
Abstract
The aim of this study was to investigate the effective role of silymarin either alone or in combination with chlorogenic acid and/or melatonin against the toxic impact of carbon tetrachloride (CCl4) induced cardiac infarction. CCl4 (l.2 ml/kg body weight) was administered as a single dose intraperitoneally. The results revealed that the administration of silymarin alone or in combination with chlorogenic acid (CGA) and/or melatonin for 21 consecutive days, 24 h after CCl4 injection to rats, markedly ameliorated the increases in serum markers of cardiac infarction, including troponin T and creatine kinase-MB (CK-MB), as well as increases in the pro-inflammatory biomarkers, including interleukin-6 (IL-6), interferon-γ (IFN-γ) in serum and tumor necrosis factor-α (TNF-α) and C-reactive protein in cardiac tissue compared to CCl4 intoxicated rats. The used agents also successfully modulated the alteration in vascular endothelial growth factor (VEGF) in serum and the oxidative DNA damage and the increase in the apoptosis marker caspase 3 in cardiac tissue in response to CCl4 toxicity. The present biochemical results are supported by histo-pathological examination. The current results proved that treatment with silymarin in combination with CGA and melatonin was the most effective one in ameliorating the toxicity of CCl4 induced cardiac damage and this may support the use of this combination as an effective drug to treat cardiac damage induced by toxic agents.
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Affiliation(s)
- Nouf M. Al-Rasheed
- Pharmacology Department, Faculty of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Nawal M. Al-Rasheed
- Pharmacology Department, Faculty of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - L.M. Faddah
- Pharmacology Department, Faculty of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Azza M. Mohamed
- Biochemistry Department, Faculty of Science for Girls, King Abdulaziz University, P.O Box 51459, Jeddah 21453, Saudi Arabia
- Theraputic Chemistry Department, National Research Center, Dokki, Egypt
| | - Raeesa A. Mohammad
- Anatomy Department-Faculty of Medicine-King Saud University, Riyadh, Saudi Arabia
| | - Maha Al-Amin
- Pharmacology Department, Faculty of Pharmacy, King Saud University, Riyadh, Saudi Arabia
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Ni Y, Wang P, Song H, Lin X, Kokot S. Electrochemical detection of benzo(a)pyrene and related DNA damage using DNA/hemin/nafion–graphene biosensor. Anal Chim Acta 2014; 821:34-40. [DOI: 10.1016/j.aca.2014.03.006] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Revised: 03/05/2014] [Accepted: 03/07/2014] [Indexed: 10/25/2022]
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