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Karmakar S, Sen Gupta P, Bhattacharya S, Sarkar A, Rahaman A, Mandal DP, Bhattacharjee S. Vitamin B12 alleviates malathion-induced toxicity in zebra fish by regulating cytochrome P450 and PgP expressions. Toxicol Mech Methods 2023; 33:364-377. [PMID: 36345843 DOI: 10.1080/15376516.2022.2145590] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 10/02/2022] [Accepted: 11/03/2022] [Indexed: 11/10/2022]
Abstract
The indiscriminate and rampant use of pesticides has raised serious concerns regarding their toxic impact on non-target organisms which underlines need for the development of an effective antidote. Metabolic activation of organophosphate pesticides by the phase I enzyme, cytochrome P450 plays a key role in influencing pesticide-toxicity. In this study, we have investigated the effect of environmentally relevant malathion concentration (100 μg/L) alone and in combination with vitamin B12 on the expression of genes related to xenobiotic metabolism such as CYP enzymes, PgP and the key oxidative stress responsive transcription factor, Nrf2 in zebra fish liver and brain. Expressions of Nrf2-trasncribed antioxidant genes and their activities were also measured. Administration of vitamin B12 successfully revived motor functions by modulation of AchE activity. Mechanistically, vitamin B12 was demonstrated to alleviate oxidative stress which was accompanied by decreased phase-I enzyme cyp3c1 and increased pgp expressions.
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Affiliation(s)
- Subrata Karmakar
- Department of Zoology, West Bengal State University, West Bengal, India
| | - Poulami Sen Gupta
- Department of Zoology, West Bengal State University, West Bengal, India
| | | | - Arnab Sarkar
- Department of Zoology, West Bengal State University, West Bengal, India
| | - Ashikur Rahaman
- Department of Zoology, West Bengal State University, West Bengal, India
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2
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Ghasemi SZ, Beigoli S, Behrouz S, Gholamnezhad Z, Mohammadian Roshan N, Boskabady MH. Evaluation of nano-curcumin against inhaled paraquat-induced lung injury in rats. Pharmacol Rep 2023; 75:671-681. [PMID: 37039972 DOI: 10.1007/s43440-023-00483-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 03/31/2023] [Accepted: 04/03/2023] [Indexed: 04/12/2023]
Abstract
BACKGROUND Acute lung injury (ALI) remains a significant source of morbidity and mortality in critically ill patients and currently there is no efficient therapy for this condition. The aim of this research was to evaluate the protective activity of nano-curcumin (nano-CU) as a natural anti-inflammatory and antioxidant agent, against inhaled paraquat (PQ)-induced lung injury. METHODS One group of rats was exposed to saline (control group, Ctrl) and six groups to PQ aerosol (54 mg/m3 on alternate days 8 times, each time for 30 min) treated with drinking water alone (group PQ), 2 and 8 mg/kg nano-CU (nano + CU(L) and nano + CU(H)), 5 mg/kg pioglitazone (PIO), nano-CU(L) + PIO or 0.03 mg/kg dexamethasone (Dexa) for 16 days after PQ exposure period. PIO and Dexa were intraperitoneal (ip) injected and nano-CU was administered orally (po), (6 rats in each group). RESULTS In the PQ group, total and differential WBC counts, malondialdehyde (MDA) in the bronchoalveolar lavage fluid (BALF), interferon gamma (INF-γ) and interleukin 10 (IL-10) levels in the lung tissues, lung pathological changes, and tracheal responsiveness were increased but the BALF thiol, catalase (CAT) and superoxide dismutase (SOD) levels were reduced. In treated groups with nano-CU(H) and PIO + nano-CU(L), all measured variables, in Dexa and nano-CU(L) treated groups, most variables and in the PIO group only a few variables were improved. The improvement of most variables in the PIO + nano-CU(L) group was significantly higher than in the PIO and nano-CU(L) groups alone. CONCLUSIONS Nano-CU ameliorated lung damage induced by inhaled PQ similar to dexa and a synergic effect between nano-CU and PIO was observed, suggesting, a possible PPAR-γ receptor-mediated effect of curcumin.
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Affiliation(s)
- Seyedeh Zahra Ghasemi
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, 9177948564, Iran
- Department of Physiology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, 9177948564, Iran
| | - Sima Beigoli
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, 9177948564, Iran
| | - Sepideh Behrouz
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, 9177948564, Iran
- Department of Physiology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, 9177948564, Iran
| | - Zahra Gholamnezhad
- Department of Physiology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, 9177948564, Iran
| | - Nema Mohammadian Roshan
- Department of Pathology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Hossein Boskabady
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, 9177948564, Iran.
- Department of Physiology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, 9177948564, Iran.
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3
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Chen Y, Dong S, Tian L, Chen H, Chen J, He C. Combination of azithromycin and methylprednisolone alleviates Mycoplasma pneumoniae induced pneumonia by regulating miR‑499a‑5p/STAT3 axis. Exp Ther Med 2022; 24:578. [PMID: 35949317 PMCID: PMC9353499 DOI: 10.3892/etm.2022.11515] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 06/10/2022] [Indexed: 11/06/2022] Open
Abstract
Mycoplasma pneumoniae (M. pneumoniae) is a contributing factor to community-acquired pneumonia in children. The present study sought to explain the underlying mechanism of azithromycin (AZM) combined with methylprednisolone (MP) in the treatment of M. pneumoniae infection. Peripheral blood samples were obtained from patients with M. pneumoniae and healthy volunteers for analysis. A549 cells were infected with M. pneumoniae to construct an in vitro cell model with M. pneumoniae, followed by treatment with AZM and MP. Cell Counting Kit-8 and TUNEL assays were conducted to detect cell viability and apoptosis. RT-qPCR was employed to measure the expression levels of microRNA (miR)-499a-5p and STAT3. Western blotting was performed to measure the expression of STAT3 and apoptosis-related proteins. Luciferase report assay was performed to verify the binding site between miR-499a-5p and STAT3. The production of inflammatory cytokines was determined using ELISA kits. The results exhibited the downregulated miR-499a-5p and dysregulated inflammatory cytokines in peripheral blood of patients and M. pneumoniae-infected A549 cells. AZM and MP treatment alone or combined significantly inhibited inflammatory response, cell viability loss and promoted apoptosis in A549 cells infected with M. pneumoniae, which was partly reversed by inhibition of miR-499a-5p. Furthermore, miR-499a-5p could negatively regulate its direct target STAT3. In addition, STAT3 is also regulated by AZM and MP. Collectively, the present results suggested that combination treatment of AZM and MP could inhibit M. pneumoniae infection-induced inflammation, cell viability loss and promoted apoptosis partly by regulating miR-499a-5p/STAT3 axis.
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Affiliation(s)
- Yongli Chen
- Department of Paediatrics, Wuhan Fourth Hospital, Hankou, Wuhan, Hubei 430034, P.R. China
| | - Shanwu Dong
- Department of Paediatrics, Wuhan Fourth Hospital, Hankou, Wuhan, Hubei 430034, P.R. China
| | - Lin Tian
- Department of Paediatrics, Wuhan Fourth Hospital, Hankou, Wuhan, Hubei 430034, P.R. China
| | - Haishan Chen
- Department of Paediatrics, Wuhan Fourth Hospital, Hankou, Wuhan, Hubei 430034, P.R. China
| | - Jing Chen
- Department of Paediatrics, Wuhan Fourth Hospital, Hankou, Wuhan, Hubei 430034, P.R. China
| | - Chunzhi He
- Department of Paediatrics, Wuhan Fourth Hospital, Hankou, Wuhan, Hubei 430034, P.R. China
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4
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Selo MA, Sake JA, Kim KJ, Ehrhardt C. In vitro and ex vivo models in inhalation biopharmaceutical research - advances, challenges and future perspectives. Adv Drug Deliv Rev 2021; 177:113862. [PMID: 34256080 DOI: 10.1016/j.addr.2021.113862] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 07/02/2021] [Accepted: 07/06/2021] [Indexed: 12/11/2022]
Abstract
Oral inhalation results in pulmonary drug targeting and thereby reduces systemic side effects, making it the preferred means of drug delivery for the treatment of respiratory disorders such as asthma, chronic obstructive pulmonary disease or cystic fibrosis. In addition, the high alveolar surface area, relatively low enzymatic activity and rich blood supply of the distal airspaces offer a promising pathway to the systemic circulation. This is particularly advantageous when a rapid onset of pharmacological action is desired or when the drug is suffering from stability issues or poor biopharmaceutical performance following oral administration. Several cell and tissue-based in vitro and ex vivo models have been developed over the years, with the intention to realistically mimic pulmonary biological barriers. It is the aim of this review to critically discuss the available models regarding their advantages and limitations and to elaborate further which biopharmaceutical questions can and cannot be answered using the existing models.
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Chen CK, Yeh YT, Mégarbane B, Chen YC, Chen KF, Chang CH, Lin CC. A novel flowchart to predict mortality and analyse effectiveness of routinely used pharmacological regimens in paraquat poisoning. Basic Clin Pharmacol Toxicol 2021; 129:496-503. [PMID: 34478614 DOI: 10.1111/bcpt.13652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 08/27/2021] [Accepted: 09/01/2021] [Indexed: 11/29/2022]
Abstract
Paraquat is responsible for an extremely high case-fatality rate poisoning. Mortality prediction remains a major issue since evidence to support benefits of routinely used treatments is lacking. We aimed to develop an easy-to-use prediction flowchart not requiring the ingestion time, for which accuracy is frequently questionable, and to evaluate the effectiveness of routinely used pharmacological therapies on mortality. We designed a two-centre cohort study including consecutive paraquat-poisoned adults with confirmed diagnosis based on serum/urine paraquat measurement. We built a flowchart using a multivariate analysis of death predictors and analysed the outcome according to the administered therapies. Overall, 256 patients were enrolled. Mortality rate was 75%. Independent death predictors on admission were serum creatinine (odds ratio [OR], 5.07; 95% confidence interval [CI], 1.97-13.05) and serum paraquat concentration (OR, 2.26; CI, 1.66-3.09). The area-under-the flowchart curve was 0.91. Overall sensitivity and specificity were 81.5% and 94.8%, respectively. More survivors than non-survivors of severe poisoning received methylprednisolone (P = 0.04). While not significantly differing in severity, methylprednisolone-treated patients had better survival (P = 0.04). To conclude, we defined an efficient flowchart to predict mortality in paraquat poisoning at presentation, even if ingestion time is undetermined. Methylprednisolone seems effective to improve the outcome, especially in the most severe cases.
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Affiliation(s)
- Chun-Kuei Chen
- Department of Emergency Medicine, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan, Taiwan.,College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Department of Medical and Toxicological Critical Care, Lariboisière Hospital, AP-HP, Paris University, INSERM UMRS-1144, Paris, France
| | - Ying-Tse Yeh
- Department of Emergency Medicine, Taipei Veterans General Hospital, Yuli Branch, Hualian, Taiwan
| | - Bruno Mégarbane
- Department of Medical and Toxicological Critical Care, Lariboisière Hospital, AP-HP, Paris University, INSERM UMRS-1144, Paris, France
| | - Yen-Chia Chen
- Department of Emergency Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Department of Emergency Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Kuan-Fu Chen
- Department of Emergency Medicine, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan, Taiwan.,College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Chia-Hsun Chang
- Department of Emergency Medicine, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan, Taiwan
| | - Chih-Chuan Lin
- Department of Emergency Medicine, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan, Taiwan.,College of Medicine, Chang Gung University, Taoyuan, Taiwan
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6
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Ji M, Gong X, Li X, Wang C, Li M. Advanced Research on the Antioxidant Activity and Mechanism of Polyphenols from Hippophae Species-A Review. Molecules 2020; 25:E917. [PMID: 32092874 PMCID: PMC7071004 DOI: 10.3390/molecules25040917] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 02/16/2020] [Accepted: 02/18/2020] [Indexed: 01/23/2023] Open
Abstract
Oxidation is a normal consequence of metabolism in biological organisms. The result is the formation of detrimental reactive oxygen species (ROS) and reactive nitrogen species (RNS). A large number of studies have shown that polyphenolic compounds have good antioxidant properties. Hippophae species plants have high polyphenolic content and are widely used in food, medicinal, or the cosmetic field. The main polyphenols in Hippophae species are flavonoids, phenolic acids and tannins, which have multiple effects. However, there is a limited number of studies on polyphenols in Hippophae species plants. This review systematically summarizes the polyphenols compounds and antioxidant activity of Hippophae species plants, and it is noteworthy that the main mechanisms of the polyphenols of Hippophae with antioxidant activity have been summarized as follows: regulating enzyme activity, affect the antioxidant reaction of cells, and others. This review provides useful information for the further study and application of Hippophae species polyphenols and their antioxidant activity.
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Affiliation(s)
- Mingyue Ji
- Department of Pharmacy, Baotou Medical College, Baotou 014060, China; (M.J.); (X.G.); (C.W.)
| | - Xue Gong
- Department of Pharmacy, Baotou Medical College, Baotou 014060, China; (M.J.); (X.G.); (C.W.)
| | - Xue Li
- Department of Pharmacy, Inner Mongolia Medical University, Hohhot 010110, China;
| | - Congcong Wang
- Department of Pharmacy, Baotou Medical College, Baotou 014060, China; (M.J.); (X.G.); (C.W.)
| | - Minhui Li
- Department of Pharmacy, Baotou Medical College, Baotou 014060, China; (M.J.); (X.G.); (C.W.)
- Department of Pharmacy, Inner Mongolia Medical University, Hohhot 010110, China;
- Qiqihar Medical University, Qiqihar 161006, China
- Pharmaceutical Laboratory, Inner Mongolia Autonomous Region Academy of Chinese Medicine, Hohhot 010020, China
- Inner Mongolia Key Laboratory of Characteristic Geoherbs Resources Protection and Utilization, Baotou Medical College, Baotou 014060, China
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7
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Tyagi N, Singh DK, Dash D, Singh R. Curcumin Modulates Paraquat-Induced Epithelial to Mesenchymal Transition by Regulating Transforming Growth Factor-β (TGF-β) in A549 Cells. Inflammation 2020; 42:1441-1455. [PMID: 31028577 DOI: 10.1007/s10753-019-01006-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Paraquat (PQ), a widely used potent herbicide, generates superoxide anions and other free radicals, leading to severe toxicity and acute lung injury. PQ induces pulmonary fibrosis through epithelial to mesenchymal transition (EMT) characterized by increased number of myofibroblasts. Time-dependent PQ-induced EMT has been evaluated in present investigation where intracellular ROS levels were significantly enhanced after 24 h of PQ intoxication. Anti-inflammatory effects of curcumin have been studied where alveolar epithelial cells (A549 cells) were incubated with curcumin (30 μΜ) for 1 and 3 h before PQ intoxication (700 μM). Western blot and immunocytochemistry studies revealed that pretreatment of A549 cells with curcumin for 3 h before PQ exposure has maintained E-cadherin expression and inhibited PQ induced α-smooth-muscle actin (α-SMA) expression. Transforming growth factor-β (TGF-β) that seems to be involved in PQ-induced EMT was enhanced after PQ intoxication, but curcumin pretreatment has effectively inhibited its expression. Immunostaining studies have shown that curcumin pretreatment has significantly reduced matrix metalloproteinase-9 (MMP-9) expressions, which were elevated after PQ intoxication. These results demonstrate that curcumin can regulate PQ-induced EMT by regulating the expression of TGF-β.
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Affiliation(s)
- Namitosh Tyagi
- Department of Zoology, MMV, Banaras Hindu University, Varanasi, 221005, India
| | - D K Singh
- Department of Physics, Udai Pratap Autonomous College, Varanasi, 221002, India
| | - D Dash
- Department of Biochemistry, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221005, India
| | - Rashmi Singh
- Department of Zoology, MMV, Banaras Hindu University, Varanasi, 221005, India.
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8
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Charão MF, Goethel G, Brucker N, Paese K, Eifler-Lima VL, Pohlmann AR, Guterres SS, Garcia SC. Melatonin-loaded lipid-core nanocapsules protect against lipid peroxidation caused by paraquat through increased SOD expression in Caenorhabditis elegans. BMC Pharmacol Toxicol 2019; 20:80. [PMID: 31852511 PMCID: PMC6921496 DOI: 10.1186/s40360-019-0352-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Melatonin has been described in the literature as a potent antioxidant. However, melatonin presents variable, low bioavailability and a short half-life. The use of polymeric nanoparticulated systems has been proposed for controlled release. Thus, the purpose of this study was to investigate the action of melatonin-loaded lipid-core nanocapsules (Mel-LNC) in the antioxidant system of Caenorhabditis elegans, and the possible protective effect of this formulation against lipid peroxidation caused by paraquat (PQ). METHODS The suspensions were prepared by interfacial deposition of the polymer and were physiochemically characterized. C. elegans N2 wild type and transgenic worm CF1553, muls84 [sod-3p::gfp; rol6(su1006)] were obtained from the Caenorhabditis Genetics Center (CGC). The worms were divided into 5 groups: Control, PQ 0.5 mM, PQ 0.5 mM + Mel-LNC 10 μg/mL, PQ + unloaded lipid-core nanocapsules (LNC), and PQ + free melatonin (Mel) 10 μg/mL. The lipid peroxidation was assessed through thiobarbituric acid (TBARS) levels and the fluorescence levels of the transgenic worms expressing GFP were measured. RESULTS The LNC and Mel-LNC presented a bluish-white liquid, with pH values of 5.56 and 5.69, respectively. The zeta potential was - 6.4 ± 0.6 and - 5.2 ± 0.2, respectively. The mean particle diameter was 205 ± 4 nm and 203 ± 3 nm, respectively. The total melatonin content was 0.967 mg/ml. The TBARS levels were significantly higher in the PQ group when compared to the control group (p < 0.001). Mel-LNC reduced TBARS levels to similar levels found in the control group. Moreover, only Mel-LNC significantly enhanced the SOD-3 expression (p < 0.05). Mel-LNC was capable of protecting C. elegans from lipid peroxidation caused by PQ and this was not observed when free melatonin was used. Moreover, Mel-LNC increased the fluorescence intensity of the transgenic strain that encodes the antioxidant enzyme SOD-3, demonstrating a possible mechanism of protection from PQ-induced damage. CONCLUSION These findings demonstrated that melatonin, when associated with nanocapsules, had improved antioxidant properties and the protective activity against PQ-induced lipid peroxidation could be associated with the activation of antioxidant enzymes by Mel-LNC in C. elegans.
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Affiliation(s)
- Mariele F Charão
- Laboratory of Toxicology (LATOX), Federal University of Rio Grande do Sul, Porto Alegre, Brazil, Porto Alegre, Rio Grande do Sul, Brazil.,Laboratory of Analytical Toxicology, Feevale University, Novo Hamburgo, Brazil, Novo Hamburgo, RS, Brazil
| | - Gabriela Goethel
- Laboratory of Toxicology (LATOX), Federal University of Rio Grande do Sul, Porto Alegre, Brazil, Porto Alegre, Rio Grande do Sul, Brazil.,Post-graduate Program in Pharmaceutical Sciences, Federal University of Rio Grande do Sul, Porto Alegre, Brazil, Porto Alegre, RS, Brazil
| | - Natália Brucker
- Laboratory of Toxicology (LATOX), Federal University of Rio Grande do Sul, Porto Alegre, Brazil, Porto Alegre, Rio Grande do Sul, Brazil.,Department of Physiology and Pharmacology, Federal University of Santa Maria, Porto Alegre, Brazil, Santa Maria, RS, Brazil
| | - Karina Paese
- Post-graduate Program in Pharmaceutical Sciences, Federal University of Rio Grande do Sul, Porto Alegre, Brazil, Porto Alegre, RS, Brazil
| | - Vera L Eifler-Lima
- Post-graduate Program in Pharmaceutical Sciences, Federal University of Rio Grande do Sul, Porto Alegre, Brazil, Porto Alegre, RS, Brazil
| | - Adriana R Pohlmann
- Post-graduate Program in Pharmaceutical Sciences, Federal University of Rio Grande do Sul, Porto Alegre, Brazil, Porto Alegre, RS, Brazil
| | - Silvia S Guterres
- Post-graduate Program in Pharmaceutical Sciences, Federal University of Rio Grande do Sul, Porto Alegre, Brazil, Porto Alegre, RS, Brazil
| | - Solange C Garcia
- Laboratory of Toxicology (LATOX), Federal University of Rio Grande do Sul, Porto Alegre, Brazil, Porto Alegre, Rio Grande do Sul, Brazil. .,Post-graduate Program in Pharmaceutical Sciences, Federal University of Rio Grande do Sul, Porto Alegre, Brazil, Porto Alegre, RS, Brazil.
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9
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Mirzaee S, Mansouri E, Shirani M, Zeinvand-Lorestani M, Khodayar MJ. Diosmin ameliorative effects on oxidative stress and fibrosis in paraquat-induced lung injury in mice. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:36468-36477. [PMID: 31732951 DOI: 10.1007/s11356-019-06572-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 09/23/2019] [Indexed: 06/10/2023]
Abstract
Paraquat (PQ) induces pulmonary fibrosis, a progressive lung disorder resulting in severe respiratory failure and death. Increased oxidative stress, inflammatory reactions, and multiple fibrotic lesions are major features of PQ-induced lung injury. Diosmin (Dio) is a safe drug that is available for clinical use for vascular disorders. Dio exhibits antioxidant, anti-inflammatory, and antifibrotic activities. Accordingly, the aim of this study was to evaluate the protective effect of diosmin on PQ-induced lung injury in mice and the underlying mechanisms involved. Lung injury was induced by PQ (30 mg/kg, intraperitoneally) in NMRI albino mice and Dio (50 and 100 mg/kg, gavage) was administrated 3 days before PQ and continued for 10 or 24 days. After euthanizing the mice, the biochemical and histopathological markers of lung tissue were determined. PQ significantly increased oxidative stress, inflammatory, and fibrotic markers. PQ increased the level of malonedaldehyde (MDA) and hydroxyproline (HYP) and decreased the level of glutathione (GSH) and catalase activity in the lung. Dio (50 and 100 mg/kg) significantly increased GSH levels and catalase activity and decreased HYP content and MDA levels. In addition, Dio reduced histopathological injuries in hematoxylin and eosin-stained and Masson's trichrome-stained sections. These findings suggest that Dio has protective effects against PQ-induced lung injury, which may be due to its antioxidant, anti-inflammatory, and antifibrotic effects.
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Affiliation(s)
- Sirus Mirzaee
- Medicinal Plant Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Esrafil Mansouri
- Department of Anatomical Sciences, School of Medicine and Cellular and Molecular Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Maryam Shirani
- Toxicology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Department of Toxicology, Faculty of Pharmacy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Marzieh Zeinvand-Lorestani
- Toxicology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Department of Toxicology, Faculty of Pharmacy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mohammad Javad Khodayar
- Toxicology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
- Department of Toxicology, Faculty of Pharmacy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
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10
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Xu G, Wang X, Yu H, Wang C, Liu Y, Zhao R, Zhang G. Beclin 1, LC3, and p62 expression in paraquat-induced pulmonary fibrosis. Hum Exp Toxicol 2019; 38:794-802. [PMID: 30977401 DOI: 10.1177/0960327119842633] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Paraquat (PQ) is a highly toxic herbicide to humans. Pulmonary fibrosis is one of the most typical features of PQ poisoning, which develops from several days to weeks after ingestion. However, the mechanism of fibrosis is still unclear. In this study, we aimed to determine expressions of autophagy-related markers Beclin 1, microtubule-associated protein light chain 3 (LC3), and p62 in PQ-poisoned lungs and to explore the role of autophagy in pulmonary fibrosis induced by PQ. We detected markers of lung fibrosis and expressions of autophagy-related protein in the specimens from eight fatal cases of PQ poisoning by hematoxylin and eosin staining, Masson's trichrome staining, and immunohistochemistry. Based on the staining results of lung fibrosis, these cases were divided into two groups, fibrosis and non-fibrosis groups. The correlation between autophagy protein expressions and pulmonary fibrosis was examined. The results demonstrated that the autophagy-related proteins were significantly expressed in fibrosis group compared with the non-fibrosis group. There was a significantly positive correlation between these protein expressions and severity of lung fibrosis. In conclusion, autophagy dysfunction may be involved in lung fibrogenesis caused by PQ poisoning. This may be a promising clue for understanding the molecular mechanism underlying PQ-induced lung fibrosis and provide evidence for treating fibrosis by regulating the level of autophagy.
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Affiliation(s)
- G Xu
- 1 Department of Forensic Pathology, School of Forensic Medicine, China Medical University, Shenyang, Liaoning, People's Republic of China
| | - X Wang
- 1 Department of Forensic Pathology, School of Forensic Medicine, China Medical University, Shenyang, Liaoning, People's Republic of China
| | - H Yu
- 1 Department of Forensic Pathology, School of Forensic Medicine, China Medical University, Shenyang, Liaoning, People's Republic of China
| | - C Wang
- 1 Department of Forensic Pathology, School of Forensic Medicine, China Medical University, Shenyang, Liaoning, People's Republic of China.,2 The People's Procuratorate of Liaoning Province Judicial Authentication Center, Shenyang, Liaoning, People's Republic of China.,3 Collaborative Laboratory of Intelligentized Forensic Science (CLIFS), Shenyang, Liaoning, People's Republic of China
| | - Y Liu
- 2 The People's Procuratorate of Liaoning Province Judicial Authentication Center, Shenyang, Liaoning, People's Republic of China.,3 Collaborative Laboratory of Intelligentized Forensic Science (CLIFS), Shenyang, Liaoning, People's Republic of China
| | - R Zhao
- 1 Department of Forensic Pathology, School of Forensic Medicine, China Medical University, Shenyang, Liaoning, People's Republic of China
| | - G Zhang
- 1 Department of Forensic Pathology, School of Forensic Medicine, China Medical University, Shenyang, Liaoning, People's Republic of China
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11
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Zhang X, Xu X, Li S, Li L, Zhang J, Wang R. A Synthetic Receptor as a Specific Antidote for Paraquat Poisoning. Theranostics 2019; 9:633-645. [PMID: 30809298 PMCID: PMC6376464 DOI: 10.7150/thno.31485] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 12/18/2018] [Indexed: 12/22/2022] Open
Abstract
Accidental or suicidal ingestion of the world's most widely used herbicide, paraquat (PQ), may result in rapid multi-organ failure with a 60% fatality rate due to the absence of an effective detoxification solution. Effective, specific antidotes to PQ poisoning have been highly desired. Methods: The binding constant of PQ and a synthetic receptor, cucurbit[7]uril (CB[7]), was first determined in various pH environments. The antidotal effects of CB[7] on PQ toxicity were firstly evaluated with in-vitro cell lines. With in-vivo mice models, the pharmacokinetics and the biodistribution of PQ in major organs were determined to evaluate the influence of CB[7] on the oral bioavailability of PQ. Major organs' injuries and overall survival rates of the mice were systemically examined to evaluate the therapeutic efficacy of CB[7] on PQ poisoning. Results: We demonstrate that CB[7] may complex PQ strongly under various conditions and significantly reduce its toxicity in vitro and in vivo. Oral administration of PQ in the presence of CB[7] in a mouse model significantly decreased PQ levels in the plasma and major organs and alleviated major organs' injuries, when compared to those of mice administered with PQ alone. Further studies indicated that oral administration of CB[7] within 2 h post PQ ingestion significantly increased the survival rates and extended the survival time of the mice, in contrast to the ineffective treatment by activated charcoal, which is commonly recommended for PQ decontamination. Conclusion: CB[7] may be used as a specific oral antidote for PQ poisoning by strongly binding with PQ and inhibiting its absorption in the gastrointestinal tracts.
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Affiliation(s)
- Xiangjun Zhang
- State Key Laboratory of Quality Research in Chinese Medicine, and Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau, China
| | - Xiaoqiu Xu
- Department of Pharmaceutics, College of Pharmacy, Third Military Medical University, Chongqing 400038, China
| | - Shengke Li
- State Key Laboratory of Quality Research in Chinese Medicine, and Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau, China
| | - Lanlan Li
- Department of Pharmaceutics, College of Pharmacy, Third Military Medical University, Chongqing 400038, China
| | - Jianxiang Zhang
- Department of Pharmaceutics, College of Pharmacy, Third Military Medical University, Chongqing 400038, China
| | - Ruibing Wang
- State Key Laboratory of Quality Research in Chinese Medicine, and Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau, China
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Li S, Wang J, Wei BK, Dong G, Wang X. Protective Effect of Taurine on Paraquat-Induced Lung Epithelial Cell Injury. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1155:739-746. [PMID: 31468444 DOI: 10.1007/978-981-13-8023-5_64] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The herbicide Paraquat induce oxidative stress-mediated lung injury. Taurine is a well-known antioxidant. This study was designed to explore the effect of taurine on paraquat-induced injury and its related mechanism in A549 cells. The cells were pretreated with various concentrations of taurine for 30 min prior to paraquat exposure. 24 h later, cell viability was examined by the MTT assay. The level of glutathione (GSH) and the activity of glutathione peroxidase (GPx) were analyzed. The results show that taurine treatment significantly attenuates the decrease in cell viability mediated by paraquat in A549 cells. Taurine also reversed paraquat-induced disturbances in GSH content and GPx activity. Taurine exerts protection against paraquat-mediated A549 cell toxicity likely through modulation of oxidative stress.
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Affiliation(s)
- Shuangxing Li
- Department of Emergency Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Jinhua Wang
- Clinical Medicine (5+3), Dalian Medical University, Dalian, Liaoning, China
| | - Bin Kai Wei
- Clinical Medicine (5+3), Dalian Medical University, Dalian, Liaoning, China
| | - Guangtao Dong
- Department of Emergency Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Xiujie Wang
- Department of Emergency Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
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Wu B, Li HX, Lian J, Guo YJ, Tang YH, Chang ZJ, Hu LF, Zhao GJ, Hong GL, Lu ZQ. Nrf2 overexpression protects against paraquat-induced A549 cell injury primarily by upregulating P-glycoprotein and reducing intracellular paraquat accumulation. Exp Ther Med 2018; 17:1240-1247. [PMID: 30679998 PMCID: PMC6327482 DOI: 10.3892/etm.2018.7044] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 10/26/2018] [Indexed: 12/26/2022] Open
Abstract
Paraquat (PQ) intoxication causes thousands of mortalities every year, worldwide. Its pulmonary-targeted accumulation and the acute lung injury it subsequently causes, remain a challenge for detoxification treatment. A previous study has demonstrated that the upregulation of nuclear factor erythroid-2 related factor 2 (Nrf2) prevents PQ toxicity in cell line and murine models. As Nrf2 target genes include a group of membrane transporters, the current study assessed the protective mechanism exerted by Nrf2 against PQ toxicity and intracellular PQ accumulation via its effects on P-glycoprotein (P-gp), a downstream transporter of Nrf2. Adenovirus vectors containing the Nrf2 gene were transfected into A549 cells. Cell proliferation was assessed by Cell Counting Kit-8. The levels of LDH, MDA, SOD, TNF-α, IL-6 levels were detected using their respective ELISA kits. In addition, the levels of Nrf2 and P-gp protein expression were detected by western blot analysis. The concentration of PQ was measured by HPLC. The results revealed that overexpressed Nrf2 significantly increased P-gp protein levels, decreased the intracellular accumulation of PQ and attenuated PQ-induced toxicity. However, the protective effects of Nrf2 overexpression on PQ-challenged A549 cells were abrogated following cyclosporine A treatment, a competitive inhibitor of P-gp, which also increased intracellular PQ levels. These data indicated that Nrf2 gene overexpression prevented PQ toxicity in A549 cells, potentially via the upregulation of P-gp activity and the inhibition of intracellular PQ accumulation. Thus, Nrf2 and P-gp may serve as potential therapeutic targets for the treatment of PQ-induced injury.
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Affiliation(s)
- Bin Wu
- Emergency Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Hai-Xiao Li
- Emergency Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Jie Lian
- Emergency Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Yong-Jie Guo
- Department of Intensive Care Unit, Jiaxing Maternal and Child Health-Care Center, Jiaxing, Zhejiang 314000, P.R. China
| | - Ya-Hui Tang
- Emergency Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Zi-Juan Chang
- Emergency Center, Yantai Yuhuangding Hospital, Yantai, Shandong 264000, P.R. China
| | - Lu-Feng Hu
- Department of Pharmacy, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Guang-Ju Zhao
- Emergency Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Guang-Liang Hong
- Emergency Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Zhong-Qiu Lu
- Emergency Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
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Rodrigues da Silva M, Schapochnik A, Peres Leal M, Esteves J, Bichels Hebeda C, Sandri S, Pavani C, Ratto Tempestini Horliana AC, Farsky SHP, Lino-dos-Santos-Franco A. Beneficial effects of ascorbic acid to treat lung fibrosis induced by paraquat. PLoS One 2018; 13:e0205535. [PMID: 30395570 PMCID: PMC6218022 DOI: 10.1371/journal.pone.0205535] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Accepted: 09/20/2018] [Indexed: 01/08/2023] Open
Abstract
Paraquat (PQ) is one of the most widely employed herbicides that is used worldwide and it causes severe toxic effects in humans and animals. A PQ exposition can lead to pulmonary fibrosis (PF) and the mechanisms seem to be linked to oxidative stress, although other pathways have been suggested. Antioxidants can be useful as a therapy, although interventions with this kind of system are still controversial. Hence, this study has investigated the role of ascorbic acid (vitamin C) post-treatment on PQ-induced PF in male C57/BL6 mice. Pulmonary fibrosis was induced by a single PQ injection (10mg/kg; i.p.). The control group received a PQ vehicle. Seven days after the PQ or vehicle injections, the mice received vitamin C (150 mg/kg, ip, once a day) or the vehicle, over the following 7 days. Twenty-four hours after the last dose of vitamin C or the vehicle, the mice were euthanized and their bronchoalveolar lavage fluid (BALF) and their lungs were collected. The data obtained showed that vitamin C reduced the cellular recruitment, the secretion of IL-17 –a cytokine involved in neutrophils migration, TGF-β–a pro-fibrotic mediator and the collagen deposition. Moreover, vitamin C elevated the superoxide dismutase (SOD) and catalase levels, both antioxidant enzymes, but it did not alter the tracheal contractile response that was evoked by methacholine. Therefore, the researchers have highlighted the mechanisms of vitamin C as being non-invasive and have suggested it as a promising tool to treat lung fibrosis when it is induced by a PQ intoxication.
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Affiliation(s)
- Marcia Rodrigues da Silva
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
| | - Adriana Schapochnik
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
| | - Mayara Peres Leal
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
| | - Janete Esteves
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
| | - Cristina Bichels Hebeda
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
| | - Silvana Sandri
- Department of Clinical and Toxicological Analyses, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil, Brazil
| | - Christiane Pavani
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
| | | | - Sandra H. P. Farsky
- Department of Clinical and Toxicological Analyses, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil, Brazil
| | - Adriana Lino-dos-Santos-Franco
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
- * E-mail:
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Hoshina C, Omura T, Okuda K, Tanaka H, Asari M, Isozaki S, Horioka K, Yamada H, Doi H, Shiono H, Matsubara K, Shimizu K. Paraquat toxicity is attenuated by 4-phenylbutyrate-induced phosphorylation of ERK2 via PI3K in A549 cells. Biochem Biophys Res Commun 2018; 503:809-814. [DOI: 10.1016/j.bbrc.2018.06.080] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 06/15/2018] [Indexed: 02/01/2023]
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16
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Schapochnik A, da Silva MR, Leal MP, Esteves J, Hebeda CB, Sandri S, de Fátima Teixeira da Silva D, Farsky SHP, Marcos RL, Lino-Dos-Santos-Franco A. Vitamin D treatment abrogates the inflammatory response in paraquat-induced lung fibrosis. Toxicol Appl Pharmacol 2018; 355:60-67. [PMID: 29944852 DOI: 10.1016/j.taap.2018.06.020] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 06/21/2018] [Accepted: 06/22/2018] [Indexed: 12/31/2022]
Abstract
A high incidence of intentional or accidental paraquat (PQ) ingestion is related to irreversible lung fibrosis and no effective therapy is currently available. Vitamin D has emerged with promising results as an immunomodulatory molecule when abrogating the inflammatory responses of lung diseases. Therefore, we have investigated the role of vitamin D treatments on PQ-induced lung fibrosis in male C57/BL6 mice. Lung fibrosis was induced by a single injection of PQ (10 mg/kg; i.p.). The control group received PQ vehicle. Seven days later, after the PQ injection or the vehicle injection, the mice received vitamin D (5 μg/kg, i.p., once a day) or vehicle, for a further 7 days. Twenty-four hours after the last dose of vitamin D or the vehicle, the analysis were performed. The vitamin D treatments reduced the number of leukocytes in their BALF and they decreased the IL-6, IL-17, TGF-beta and MMP-9 levels and the abrogated collagenase deposits in their lung tissues. Conversely, the vitamin D treatments increased the resolvin D levels in their BALF. Moreover, their tracheal contractility was also significantly reduced by the vitamin D treatments. Altogether, the data that was obtained showed a promising use of vitamin D, in treating the lung fibrosis that had been induced by the PQ intoxications. This may improve its prognostic use for a non-invasive and low cost therapy.
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Affiliation(s)
- Adriana Schapochnik
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
| | - Marcia Rodrigues da Silva
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
| | - Mayara Peres Leal
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
| | - Janete Esteves
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
| | - Cristina Bichels Hebeda
- Department of Clinical and Toxicological Analyses, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Silvana Sandri
- Department of Clinical and Toxicological Analyses, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | | | - Sandra Helena Poliseli Farsky
- Department of Clinical and Toxicological Analyses, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Rodrigo Labat Marcos
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
| | - Adriana Lino-Dos-Santos-Franco
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil.
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Chedik L, Bruyere A, Bacle A, Potin S, Le Vée M, Fardel O. Interactions of pesticides with membrane drug transporters: implications for toxicokinetics and toxicity. Expert Opin Drug Metab Toxicol 2018; 14:739-752. [DOI: 10.1080/17425255.2018.1487398] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Lisa Chedik
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France
| | - Arnaud Bruyere
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France
| | - Astrid Bacle
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France
- Pôle Pharmacie, Centre Hospitalier Universitaire, Rennes, France
| | - Sophie Potin
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France
- Pôle Pharmacie, Centre Hospitalier Universitaire, Rennes, France
| | - Marc Le Vée
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France
| | - Olivier Fardel
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France
- Pôle Biologie, Centre Hospitalier Universitaire, Rennes, France
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Chloroquine attenuates paraquat-induced lung injury in mice by altering inflammation, oxidative stress and fibrosis. Int Immunopharmacol 2017; 46:16-22. [PMID: 28249220 DOI: 10.1016/j.intimp.2017.02.020] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2016] [Revised: 02/16/2017] [Accepted: 02/18/2017] [Indexed: 12/14/2022]
Abstract
Paraquat is one of the most extensively used herbicides and has high toxicity for humans and animals. However, there is no effective treatment for paraquat poisoning. The aim of the present study was to evaluate the effects of chloroquine on paraquat-induced lung injury in mice. Mice received a single intraperitoneal injection of paraquat and a daily intraperitoneal injection of the indicated dosages of chloroquine or dexamethasone. The histological changes, inflammation and oxidative stress in the lungs were examined at day 3, and the degree of pulmonary fibrosis was examined at day 28. H&E staining showed that chloroquine markedly attenuated lung injury induced by paraquat. In addition, the inflammatory responses induced by paraquat were inhibited after treatment with chloroquine, as indicated by the decreased number of leukocytes, the reduced levels of TNF-α, IL-1β and IL-6 in the bronchoalveolar lavage fluid, the reduced NO content, and downregulation of iNOS expression in lung tissues. No different effect was found between high-dose chloroquine and dexamethasone. Additionally, the treatment with chloroquine increased the activity of SOD and decreased the level of MDA in the lung tissues. The expressions of the anti-oxidative proteins, Nrf2, HO-1 and NQO1, were also upregulated by chloroquine treatment. The high-dose chloroquine was more effective than dexamethasone in its anti-oxidation ability. Finally, the results of Masson's staining illustrated that chloroquine markedly attenuated fibrosis in the paraquat-exposed lungs. Immunohistochemistry staining showed that the expressions of the pro-fibrotic proteins TGF-β and α-SMA were downregulated after treatment with chloroquine. In conclusion, chloroquine effectively attenuated paraquat-induced lung injury in mice.
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Cellular Models and In Vitro Assays for the Screening of modulators of P-gp, MRP1 and BCRP. Molecules 2017; 22:molecules22040600. [PMID: 28397762 PMCID: PMC6153761 DOI: 10.3390/molecules22040600] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 03/24/2017] [Accepted: 03/28/2017] [Indexed: 12/12/2022] Open
Abstract
Adenosine triphosphate (ATP)-binding cassette (ABC) transporters are highly expressed in tumor cells, as well as in organs involved in absorption and secretion processes, mediating the ATP-dependent efflux of compounds, both endogenous substances and xenobiotics, including drugs. Their expression and activity levels are modulated by the presence of inhibitors, inducers and/or activators. In vitro, ex vivo and in vivo studies with both known and newly synthesized P-glycoprotein (P-gp) inducers and/or activators have shown the usefulness of these transport mechanisms in reducing the systemic exposure and specific tissue access of potentially harmful compounds. This article focuses on the main ABC transporters involved in multidrug resistance [P-gp, multidrug resistance-associated protein 1 (MRP1) and breast cancer resistance protein (BCRP)] expressed in tissues of toxicological relevance, such as the blood-brain barrier, cardiovascular system, liver, kidney and intestine. Moreover, it provides a review of the available cellular models, in vitro and ex vivo assays for the screening and selection of safe and specific inducers and activators of these membrane transporters. The available cellular models and in vitro assays have been proposed as high throughput and low-cost alternatives to excessive animal testing, allowing the evaluation of a large number of compounds.
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Shen H, Wu N, Wang Y, Zhang L, Hu X, Chen Z, Zhao M. Toll-like receptor 9 mediates paraquat-induced acute lung injury: an in vitro and in vivo study. Life Sci 2017; 178:109-118. [PMID: 28363843 DOI: 10.1016/j.lfs.2017.03.021] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2017] [Revised: 03/20/2017] [Accepted: 03/27/2017] [Indexed: 01/02/2023]
Abstract
AIMS This study aimed to investigate the role of Toll-like receptor 9 in paraquat-induced acute lung injury (ALI). MAIN METHODS For in vivo study,C57BL mice were randomly assigned into the vehicle control group, paraquat group, paraquat + TLR9 antagonist (ODN2088) group, and TLR9 antagonist (ODN2088) group (n=36 per group). After paraquat 30mg/kg ip for 2, 24 and 48h, serum samples and lung tissues were collected to evaluate ALI and TLR9 signaling by lung injury score, protein levels of TLR9, MyD88, p-IRAK4, p-p65, and serum TNF-α and IL-1β levels. As for in vitro research A549 cells were randomly divided into the control group, paraquat group, paraquat + TLR9 siRNA group, and TLR9 siRNA group. After paraquat treatment for 24h, the cells and supernatant were collected to measureTLR9, TNF-α, IL-1 mRNA expression, and detect activation of NF-κB, caspase-3. KEY FINDINGS In vivo, the lung injury score, the TLR9, MyD88, p-IRAK4 and p-p65 protein levels, and cytokines TNF-α and IL-1β levels in paraquat group were significantly higher than that in the control group;TLR9 blocker ODN2088 pretreatment attenuated lung injury, inhibited MyD88 and NF-κB activation, and reduced TNF-α and IL-1β in serum. In vitro result shows that the gene silencing of TLR9 reduced the mRNA expression of TLR9, TNF-α and IL-1, inhibited NF-κB and caspase-3 activation, attenuated cell apoptosis. SIGNIFICANCE TLR9 mediates paraquat-induced ALI, antagonizing TLR9 or silencing TLR9gene may attenuate paraquat-induced ALI.
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Affiliation(s)
- Haitao Shen
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang 110004, People's Republic of China
| | - Na Wu
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang 110004, People's Republic of China
| | - Yu Wang
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang 110004, People's Republic of China
| | - Lichun Zhang
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang 110004, People's Republic of China
| | - Xiao Hu
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang 110004, People's Republic of China
| | - Zhiguang Chen
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang 110004, People's Republic of China
| | - Min Zhao
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang 110004, People's Republic of China.
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Satpute RM, Pawar PP, Puttewar S, Sawale SD, Ambhore PD. Effect of resveratrol and tetracycline on the subacute paraquat toxicity in mice. Hum Exp Toxicol 2017; 36:1303-1314. [PMID: 28090784 DOI: 10.1177/0960327116688070] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Paraquat (PQ) is a nonselective bipyridyl herbicide widely used in agriculture to control weeds, but its accidental, occupational, or intentional exposure in humans is known to cause pneumo- and neurotoxicity which may proves fatal. Oxidative stress is reported as an underlined mechanism of PQ-induced toxicity in alveolar cells, neurons, and astroglia. PQ generates superoxides both through electron transport reaction (ETC) with nicotinamide adenine dinucleotide-dependent oxidoreductase and by the redox cycling via reaction with molecular oxygen. In lungs, it causes edema and inflammation resulting in neutrophils infiltration and subsequent activation of pro-inflammatory cytokines. In the present study, toxicity of subacute oral PQ exposure and effect of resveratrol (Res) and/or tetracycline (TC) on oxidative stress and inflammatory markers in lungs, brain, and liver was studied. Levels of glutathione and malondialdehyde and activities of myeloperoxidase, glutathione peroxidase, and catalase were measured in lungs, brain, and liver. PQ interferes in the function of mitochondrial ETC complexes causing decreased adenosine triphosphate levels, and hence the activities of complexes I and IV were studied in brain tissues. Res, a natural antioxidant, and TC, an antibiotic with its antimicrobial and anti-inflammatory properties, offered significant protection from severe oxidative stress and inflammation and ameliorated the general well-being of mice against the toxic outcome of PQ.
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Affiliation(s)
- R M Satpute
- 1 Toxicology Laboratory, Defence Research and Development Establishment, Nagpur, Maharashtra, India
| | - P P Pawar
- 2 Department of Biotechnology, S.F.S. College, Seminari Hills, Nagpur, India
| | - S Puttewar
- 2 Department of Biotechnology, S.F.S. College, Seminari Hills, Nagpur, India
| | - S D Sawale
- 3 Department of Biotechnology, G.H. Raisoni Institute of Information Technology, Nagpur, India
| | - P D Ambhore
- 4 Department of Biotechnology, Rajarshi Shahu Mahavidyalaya, Latur, India
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Curcumin inhibits paraquat induced lung inflammation and fibrosis by extracellular matrix modifications in mouse model. Inflammopharmacology 2016; 24:335-345. [PMID: 27766504 DOI: 10.1007/s10787-016-0286-z] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Accepted: 09/30/2016] [Indexed: 02/03/2023]
Abstract
OBJECTIVE Paraquat (PQ), a potent herbicide can cause severe toxicity. We report here that fibroproliferation phase of acute lung injury (ALI) is initiated much earlier (within 48 h) after PQ intoxication than previously reported (after 2 weeks) and we aimed to study the protective effects of intranasal curcumin as new therapeutic strategy in mouse model. METHODS Mice (Park's strain) were divided into five experimental groups (I) control, received only saline (0.9 % NaCl) (II) PQ, mice intoxicated with PQ (50 mg/kg, i.p., single dose); (III) curcumin, treated with curcumin (5 mg/kg, i.n) an hour before PQ administration; (IV)Veh, DMSO (equal volume to curcumin) given an hour before PQ exposure; (V) DEXA, mice treated with dexamethasone (1 mg/kg, i.p) before an hour of PQ intoxication. After 48 h of the PQ exposure, all mice were sacrificed and samples were analyzed. RESULTS Pretreatment with intranasal curcumin (5 mg/kg) could modify the PQ-intoxication (50 mg/kg, i.p) induced structural remodeling of lung parenchyma at an early phase of acute lung injury. Significant increase in inflammatory cell count, reactive oxygen species and hydroxyproline levels were decreased after curcumin pretreatment (all p < 0.05). Histological examination and zymography results were also found consistent. CONCLUSION Our results show that curcumin pretreatment decreased the expression of alpha smooth muscle actin (α-SMA), matrix metalloproteinases-9 (MMP-9) and changed the expression of tissue inhibitors of metalloproteinase (TIMP-1) after PQ intoxication. Single toxic dose of PQ has initiated fibroproliferation within 48 h and intranasal curcumin may prove as new therapeutic strategy for PQ induced ALI and fibroproliferation.
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Li J, Wu X, Chen Y, Zeng R, Zhao Y, Chang P, Wang D, Zhao Q, Deng Y, Li Y, Alam HB, Chong W. The Effects of Molecular Hydrogen and Suberoylanilide Hydroxamic Acid on Paraquat-Induced Production of Reactive Oxygen Species and TNF-α in Macrophages. Inflammation 2016; 39:1990-1996. [DOI: 10.1007/s10753-016-0434-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Kim HJ, Kim HK, Kwon JT, Lee SH, El Park S, Gil HW, Song HY, Hong SY. Effect of MDR1 gene polymorphisms on mortality in paraquat intoxicated patients. Sci Rep 2016; 6:31765. [PMID: 27545861 PMCID: PMC4992846 DOI: 10.1038/srep31765] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Accepted: 07/27/2016] [Indexed: 01/11/2023] Open
Abstract
Paraquat is a fatal herbicide following acute exposure. Previous studies have suggested that multidrug resistance protein 1 (MDR1) might help remove paraquat from the lungs and the kidney. MDR1 single-nucleotide polymorphisms (SNPs) are involved in the pharmacokinetics of many drugs. The purpose of this study was to determine whether MDR1 SNPs were associated with the mortality in paraquat intoxicated patients. We recruited 109 patients admitted with acute paraquat poisoning. They were genotyped for C1236T, G2677T/A, and C3435T single-nucleotide polymorphisms (SNPs) of MDR1 gene. Their effects on mortality of paraquat intoxicated patients were evaluated. Overall mortality rate was 66.1%. Regarding the C1236T of the MDR1 gene polymorphism, 21 (19.3%) had the wild type MDR1 while 88 (80.7%) had homozygous mutation. Regarding the C3435T MDR1 gene polymorphism, 37(33.9%) patients had the wild type, 23 (21.1%) had heterozygous mutation, and 49 (45.0%) had homozygous mutation. Regarding the G2677T/A MDR1 gene polymorphism, 38 (34.9%) patients had the wild type, 57 (52.3%) had heterozygous mutation, and 14 (12.8%) had homozygous mutation. None of the individual mutations or combination of mutations (two or three) of MDR1 SNP genotypes altered the morality rate. The mortality rate was not significantly different among SNP groups of patients with <4.0 μg/mL paraquat. In conclusion, MDR1 SNPs have no effect on the mortality rate of paraquat intoxicated patients.
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Affiliation(s)
- Hak Jae Kim
- Department of Clinical Pharmacology, College of Medicine, Soonchunhyang University, Cheonan, Choongcheongnam-do 330-930, Republic of Korea
| | - Hyung-Ki Kim
- Department of Clinical Pharmacology, College of Medicine, Soonchunhyang University, Cheonan, Choongcheongnam-do 330-930, Republic of Korea
| | - Jun-Tack Kwon
- Department of Clinical Pharmacology, College of Medicine, Soonchunhyang University, Cheonan, Choongcheongnam-do 330-930, Republic of Korea
| | - Sun-Hyo Lee
- Department of Internal Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Republic of Korea
| | - Sam El Park
- Department of Internal Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Republic of Korea
| | - Hyo-Wook Gil
- Department of Internal Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Republic of Korea
| | - Ho-Yeon Song
- Department of Microbiology, College of Medicine, Soonchunhyang University, Cheonan, Republic of Korea
| | - Sae-Yong Hong
- Department of Internal Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Republic of Korea
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Du J, Li X, Lin C, He X. Protective Effects of Arachidonic Acid Against Paraquat-Induced Pulmonary Injury. Inflammation 2016; 38:1458-63. [PMID: 25633425 DOI: 10.1007/s10753-015-0120-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
In this study, we aimed to study the effects of arachidonic acid (AA) on acute lung injury (ALI) caused by paraquat (PQ) in mice. Male Kunming mice were randomly divided into three groups: control group, PQ group, and PQ + AA group (n = 24). The mice in the PQ and PQ + AA groups received a single oral dose of 20 mg/kg bodyweight PQ, and the mice of the PQ + AA group were challenged by 500 mg/kg bodyweight AA posttreatment 2 h after PQ administration. The results indicated that the administration of AA significantly increased the activity of superoxide dismutase (SOD), decreased the activity of myeloperoxidase (MPO), the content of malondialdehyde (MDA), and the level of lactate dehydrogenase (LDH). Pathological examination also revealed that AA effectively alleviated PQ-induced histological damage. Furthermore, AA significantly reduced PQ-induced upregulations of inflammatory mediators such as tumor necrosis factor (TNF)-α, interleukin (IL)-1β, IL-6, and IL-8. These results demonstrated that AA had effective protection against PQ-induced ALI.
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Affiliation(s)
- Jianxin Du
- Pulmonary Department, Affiliated Hospital of QingDao University, Qingdao, 266003, People's Republic China
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Zerin T, Lee M, Jang WS, Nam KW, Song HY. Anti-inflammatory potential of ursolic acid in Mycobacterium tuberculosis-sensitized and concanavalin A-stimulated cells. Mol Med Rep 2016; 13:2736-44. [PMID: 26847129 DOI: 10.3892/mmr.2016.4840] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2015] [Accepted: 11/19/2015] [Indexed: 11/06/2022] Open
Abstract
Ursolic acid (3-β-3-hydroxy-urs-12-ene-28-oic-acid; UA) is a triterpenoid carboxylic acid with various pharmaceutical properties. It is commonly found in apples, basil, berries, rosemary, peppermint, lavender, oregano, thyme, hawthorn and prunes. In the present study, the activities of UA against the Mycobacterium tuberculosis H37Rv‑induced release of a panel of inflammatory cytokines, including tumor necrosis factor-α (TNF-α), interleukin (IL)-1β and IL-6 from RAW 264.7 murine macrophages, A549 alveolar epithelial cells and in concanavalin A (Con A)-stimulated rat splenocytes were investigated. In addition, the present study examined the ability of UA to reduce the expression levels of the inflammatory mediators, cyclooxygenase‑2 (COX‑2) and inducible nitric oxide synthase (iNOS) in the stimulated cells. The reduction of nitric oxide (NO) release by UA was also examined in the stimulated cells. UA significantly inhibited the mRNA expression levels of TNF‑α, IL‑1β and IL‑6 in the stimulated cells. The expression levels of COX‑2 and iNOS were also suppressed by UA, as was the release of NO at a significant level. The data indicated the potency of UA on different cell types, which may assist in the development of anti‑inflammatory drugs. In the case of adjunct host‑directed immune therapy for tuberculosis, UA may be used, in addition to established antibiotic therapies, to improve treatment efficacy and outcome due to their anti‑inflammatory potential. Further detailed investigations are required to establish its use as an anti-inflammatory.
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Affiliation(s)
- Tamanna Zerin
- Department of Microbiology, School of Medicine, Soonchunhyang University, Cheonan, Chungnam 330‑090, Republic of Korea
| | - Minjung Lee
- Department of Microbiology, School of Medicine, Soonchunhyang University, Cheonan, Chungnam 330‑090, Republic of Korea
| | - Woong Sik Jang
- Regional Innovation Center, Soonchunhyang University, Asan, Chungnam 336‑745, Republic of Korea
| | - Kung-Woo Nam
- Department of Life Science and Biotechnology, College of Natural Science, Soonchunhyang University, Asan, Chungnam 336‑745, Republic of Korea
| | - Ho-Yeon Song
- Department of Microbiology, School of Medicine, Soonchunhyang University, Cheonan, Chungnam 330‑090, Republic of Korea
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Nickel S, Clerkin CG, Selo MA, Ehrhardt C. Transport mechanisms at the pulmonary mucosa: implications for drug delivery. Expert Opin Drug Deliv 2016; 13:667-90. [DOI: 10.1517/17425247.2016.1140144] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Sabrina Nickel
- School of Pharmacy and Pharmaceutical Sciences and Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Caoimhe G. Clerkin
- School of Pharmacy and Pharmaceutical Sciences and Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Mohammed Ali Selo
- School of Pharmacy and Pharmaceutical Sciences and Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
- Faculty of Pharmacy, Kufa University, Al-Najaf, Iraq
| | - Carsten Ehrhardt
- School of Pharmacy and Pharmaceutical Sciences and Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
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Ning Z, Bai YL, Lu H, Mo KL. Prognostic value of plasma C-reactive protein in the evaluation of paraquat poisoning patients. Asian Pac J Trop Biomed 2015. [DOI: 10.1016/j.apjtb.2015.06.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Abstract
Paraquat (PQ) is a widely used herbicide associated with a high mortality rate, yet, there are no effective treatments for PQ poisoning. PQ may damage alveolar type II cells leading to moderate to severe acute respiratory distress syndrome (ARDS). The present study was undertaken to show that PQ causes alveolar type II (A549) cell death and to evaluate whether chloroquine (CQ) can protect A549 cells against PQ-induced cell death. The results showed that high concentrations of PQ resulted in toxicity, as indicated by a decrease in cell viability. More importantly, for the first time, CQ was found to improve cell viability of PQ treated A549 cells. Moreover, our data demonstrated that CQ increased lysosome-associated membrane protein-1, lysosome-associated membrane protein-2 and light chain-3 expressions, suggesting that the mechanism by which CQ rescues PQ-induced cytotoxicity may be through protection of the lysosomal membrane or up-regulation of autophagy. In conclusion, our study indicates that CQ may be used as a potential drug to rescue PQ-induced ARDS.
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Affiliation(s)
- Lingjie Xu
- a Department of Emergency Medicine , Peking Union Medical College Hospital, Peking Union Medical College , Beijing , China and
| | - Zhong Wang
- b Beijing Tsinghua Hospital, Tsinghua University , Beijing , China
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Charão MF, Baierle M, Gauer B, Goethel G, Fracasso R, Paese K, Brucker N, Moro AM, Bubols GB, Dias BB, Matte US, Guterres SS, Pohlmann AR, Garcia SC. Protective effects of melatonin-loaded lipid-core nanocapsules on paraquat-induced cytotoxicity and genotoxicity in a pulmonary cell line. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2015; 784-785:1-9. [PMID: 26046970 DOI: 10.1016/j.mrgentox.2015.04.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Revised: 03/01/2015] [Accepted: 04/08/2015] [Indexed: 10/23/2022]
Abstract
Many acute poisonings lack effective and specific antidotes. Due to both intentional and accidental exposures, paraquat (PQ) causes thousands of deaths annually, especially by pulmonary fibrosis. Melatonin (Mel), when incorporated into lipid-core nanocapsules (Mel-LNC), has enhanced antioxidant properties. The effects of such a formulation have not yet been studied with respect to mitigation of PQ- induced cytotoxicity and DNA damage. Here, we have tested whether Mel-LNC can ameliorate PQ-induced toxicity in the A549 alveolar epithelial cell line. Physicochemical characterization of the formulations was performed. Cellular uptake was measured using nanocapsules marked with rhodamine B. Cell viability was determined by the MTT assay and DNA damage was assessed by the comet assay. The enzyme-modified comet assay with endonuclease III (Endo III) and formamidopyrimidine glycosylase (FPG) were used to investigate oxidative DNA damage. Incubation with culture medium for 24h did not alter the granulometric profile of Mel-LNC formulations. Following treatment (3 and 24h), red fluorescence was detected around the cell nucleus, indicating internalization of the formulation. Melatonin solution (Mel), Mel-LNC, and LNC did not have significant effects on cell viability or DNA damage. Pre-treatment with Mel-LNC enhanced cell viability and showed a remarkable reduction in % DNA in tail compared to the PQ group; this was not observed in cells pre-treated with Mel. PQ induces oxidative DNA damage detected with the enzyme-modified comet assay. Mel-LNC reduced this damage more effectively than did Mel. In summary, Mel-LNC is better than Mel at protecting A549 cells from the cytotoxic and genotoxic effects of PQ.
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Affiliation(s)
- Mariele F Charão
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 90610-000, Brazil; Laboratório de Toxicologia (LATOX), Faculdade de Farmácia, Universidade Federal do Rio Grandedo Sul, Porto Alegre, RS 90610-000, Brazil
| | - Marília Baierle
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 90610-000, Brazil; Laboratório de Toxicologia (LATOX), Faculdade de Farmácia, Universidade Federal do Rio Grandedo Sul, Porto Alegre, RS 90610-000, Brazil
| | - Bruna Gauer
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 90610-000, Brazil; Laboratório de Toxicologia (LATOX), Faculdade de Farmácia, Universidade Federal do Rio Grandedo Sul, Porto Alegre, RS 90610-000, Brazil
| | - Gabriela Goethel
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 90610-000, Brazil; Laboratório de Toxicologia (LATOX), Faculdade de Farmácia, Universidade Federal do Rio Grandedo Sul, Porto Alegre, RS 90610-000, Brazil
| | - Rafael Fracasso
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 90610-000, Brazil; Laboratório de Toxicologia (LATOX), Faculdade de Farmácia, Universidade Federal do Rio Grandedo Sul, Porto Alegre, RS 90610-000, Brazil
| | - Karina Paese
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 90610-000, Brazil; Departamento de Produção e Controle de Medicamentos, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 90610-000, Brazil
| | - Natália Brucker
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 90610-000, Brazil; Laboratório de Toxicologia (LATOX), Faculdade de Farmácia, Universidade Federal do Rio Grandedo Sul, Porto Alegre, RS 90610-000, Brazil
| | - Angela M Moro
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 90610-000, Brazil; Laboratório de Toxicologia (LATOX), Faculdade de Farmácia, Universidade Federal do Rio Grandedo Sul, Porto Alegre, RS 90610-000, Brazil
| | - Guilherme B Bubols
- Laboratório de Toxicologia (LATOX), Faculdade de Farmácia, Universidade Federal do Rio Grandedo Sul, Porto Alegre, RS 90610-000, Brazil
| | - Bruna B Dias
- Laboratório de Toxicologia (LATOX), Faculdade de Farmácia, Universidade Federal do Rio Grandedo Sul, Porto Alegre, RS 90610-000, Brazil
| | - Ursula S Matte
- Centro de Terapia Gênica, Centro de Pesquisa Experimental, Hospital de Clínicas, Porto Alegre, Brazil
| | - Silvia S Guterres
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 90610-000, Brazil; Departamento de Produção e Controle de Medicamentos, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 90610-000, Brazil
| | - Adriana R Pohlmann
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 90610-000, Brazil; Departamento de Química Orgânica, Instituto de Química, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 91501-970, Brazil
| | - Solange C Garcia
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 90610-000, Brazil; Laboratório de Toxicologia (LATOX), Faculdade de Farmácia, Universidade Federal do Rio Grandedo Sul, Porto Alegre, RS 90610-000, Brazil.
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Zerin T, Song HY, Kim YS. Quinalphos induced intracellular ROS generation and apoptosis in human alveolar A549 cells. Mol Cell Toxicol 2015. [DOI: 10.1007/s13273-015-0008-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Silva R, Vilas-Boas V, Carmo H, Dinis-Oliveira RJ, Carvalho F, de Lourdes Bastos M, Remião F. Modulation of P-glycoprotein efflux pump: induction and activation as a therapeutic strategy. Pharmacol Ther 2014; 149:1-123. [PMID: 25435018 DOI: 10.1016/j.pharmthera.2014.11.013] [Citation(s) in RCA: 243] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Accepted: 11/19/2014] [Indexed: 01/03/2023]
Abstract
P-glycoprotein (P-gp) is an ATP-dependent efflux pump encoded by the MDR1 gene in humans, known to mediate multidrug resistance of neoplastic cells to cancer therapy. For several decades, P-gp inhibition has drawn many significant research efforts in an attempt to overcome this phenomenon. However, P-gp is also constitutively expressed in normal human epithelial tissues and, due to its broad substrate specificity, to its cellular polarized expression in many excretory and barrier tissues, and to its great efflux capacity, it can play a crucial role in limiting the absorption and distribution of harmful xenobiotics, by decreasing their intracellular accumulation. Such a defense mechanism can be of particular relevance at the intestinal level, by significantly reducing the intestinal absorption of the xenobiotic and, consequently, avoiding its access to the target organs. In this review, the current knowledge on this important efflux pump is summarized, and a new focus is brought on the therapeutic interest of inducing and/or activating P-gp for limiting the toxicity caused by its substrates. Several in vivo and in vitro studies validating the use of such a therapeutic strategy are discussed. An extensive literature search for reported P-gp inducers/activators and for the experimental models used in their characterization was conducted. Those studies demonstrate that effective antidotal pathways can be achieved by efficiently promoting the P-gp-mediated efflux of deleterious xenobiotics, resulting in a significant reduction in their intracellular levels and, consequently, in a significant reduction of their toxicity.
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Affiliation(s)
- Renata Silva
- UCIBIO-REQUIMTE, Laboratory of Toxicology, Biological Sciences Department, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
| | - Vânia Vilas-Boas
- UCIBIO-REQUIMTE, Laboratory of Toxicology, Biological Sciences Department, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
| | - Helena Carmo
- UCIBIO-REQUIMTE, Laboratory of Toxicology, Biological Sciences Department, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
| | - Ricardo Jorge Dinis-Oliveira
- UCIBIO-REQUIMTE, Laboratory of Toxicology, Biological Sciences Department, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; INFACTS - Institute of Research and Advanced Training in Health Sciences and Technologies, Department of Sciences, Advanced Institute of Health Sciences - North (ISCS-N), CESPU, CRL, Gandra, Portugal; Department of Legal Medicine and Forensic Sciences, Faculty of Medicine, University of Porto, Porto, Portugal.
| | - Félix Carvalho
- UCIBIO-REQUIMTE, Laboratory of Toxicology, Biological Sciences Department, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
| | - Maria de Lourdes Bastos
- UCIBIO-REQUIMTE, Laboratory of Toxicology, Biological Sciences Department, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
| | - Fernando Remião
- UCIBIO-REQUIMTE, Laboratory of Toxicology, Biological Sciences Department, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
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Gil HW, Hong JR, Jang SH, Hong SY. Diagnostic and therapeutic approach for acute paraquat intoxication. J Korean Med Sci 2014; 29:1441-9. [PMID: 25408572 PMCID: PMC4234908 DOI: 10.3346/jkms.2014.29.11.1441] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Accepted: 08/12/2014] [Indexed: 12/12/2022] Open
Abstract
Paraquat (PQ) has known negative human health effects, but continues to be commonly used worldwide as a herbicide. Our clinical data shows that the main prognostic factor is the time required to achieve a negative urine dithionite test. Patient survival is a 100% when the area affected by ground glass opacity is <20% of the total lung volume on high-resolution computed tomography imaging 7 days post-PQ ingestion. The incidence of acute kidney injury is approximately 50%. The average serum creatinine level reaches its peak around 5 days post-ingestion, and usually normalizes within 3 weeks. We obtain two connecting lines from the highest PQ level for the survivors and the lowest PQ level among the non-survivors at a given time. Patients with a PQ level between these two lines are considered treatable. The following treatment modalities are recommended to preserve kidney function: 1) extracorporeal elimination, 2) intravenous antioxidant administration, 3) diuresis with a fluid, and 4) cytotoxic drugs. In conclusion, this review provides a general overview on the diagnostic procedure and treatment modality of acute PQ intoxication, while focusing on our clinical experience.
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Affiliation(s)
- Hyo-wook Gil
- Department of Internal Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Jung-Rak Hong
- Department of Internal Medicine, Metropolitan Hospital Center, New York, USA
| | - Si-Hyong Jang
- Department of Pathology, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Sae-Yong Hong
- Department of Internal Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
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Tyagi N, Kumari A, Dash D, Singh R. Protective effects of intranasal curcumin on paraquot induced acute lung injury (ALI) in mice. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2014; 38:913-921. [PMID: 25461551 DOI: 10.1016/j.etap.2014.10.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2014] [Revised: 10/06/2014] [Accepted: 10/10/2014] [Indexed: 06/04/2023]
Abstract
Paraquot (PQ) is widely and commonly used as herbicide and has been reported to be hazardous as it causes lung injury. However, molecular mechanism underlying lung toxicity caused by PQ has not been elucidated. Curcumin, a known anti-inflammatory molecule derived from rhizomes of Curcuma longa has variety of pharmacological activities including free-radical scavenging properties but the protective effects of curcumin on PQ-induced acute lung injury (ALI) have not been studied. In this study, we aimed to study the effects of curcumin on ALI caused by PQ in male parke's strain mice which were challenged acutely by PQ (50mg/kg, i.p.) with or without curcumin an hour before (5mg/kg, i.n.) PQ intoxication. Lung specimens and the bronchoalveolar lavage fluid (BALF) were isolated for pathological and biochemical analysis after 48h of PQ exposure. Curcumin administration has significantly enhanced superoxide dismutase (SOD) and catalase activities. Lung wet/dry weight ratio, malondialdehyde (MDA) and lactate dehydrogenase (LDH) content, total cell number and myeloperoxidase (MPO) levels in BALF as well as neutrophil infiltration were attenuated by curcumin. Pathological studies also revealed that intranasal curcumin alleviate PQ-induced pulmonary damage and pro-inflammatory cytokine levels like tumor necrosis factor-α (TNF-α) and nitric oxide (NO). These results suggest that intranasal curcumin may directly target lungs and curcumin inhalers may prove to be effective in PQ-induced ALI treatment in near future.
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Affiliation(s)
- Namitosh Tyagi
- Department of Zoology, MMV, Banaras Hindu University, Varanasi, 221005, India
| | - Asha Kumari
- Department of Zoology, MMV, Banaras Hindu University, Varanasi, 221005, India
| | - D Dash
- Department of Biochemistry, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221005, India
| | - Rashmi Singh
- Department of Zoology, MMV, Banaras Hindu University, Varanasi, 221005, India.
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Zerin T, Song HY, Kim YS. Extracellular signal-regulated kinase pathway play distinct role in acetochlor-mediated toxicity and intrinsic apoptosis in A549 cells. Toxicol In Vitro 2014; 29:85-92. [PMID: 25291404 DOI: 10.1016/j.tiv.2014.09.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Revised: 08/12/2014] [Accepted: 09/22/2014] [Indexed: 11/26/2022]
Abstract
Acetochlor (ACETO), a member of the chloroacetanilide family of herbicides, is widely used globally and is very frequently detected in watersheds of agricultural lands and fresh water streams. The human health consequences of environmental exposure to ACETO are unknown. This study was designed to elucidate the effect and molecular mechanisms of ACETO on human alveolar A549 cells. Established assays of cell viability and cytotoxicity were performed to detect the potential effects of ACETO on A549 cells. ACETO generated reactive oxygen species, which may have been crucial to apoptosis-mediated cytotoxicity. ACETO-treatment showed a concentration dependent up-regulation of pro-apoptotic proteins including Bax, Bak, BID and Bad, but a differential level of expression of anti-apoptotic proteins were observed, leading to the release of cytochrome c from mitochondria to the cytoplasm as well as activation of caspase-3, and cleavage of caspase-9 and PARP. ACETO also induced activation of extracellular signal-regulated kinase (ERK). Inhibition of the expression of ERK by PD98059 partially reversed ACETO-induced cytotoxicity, apoptosis and the expression of caspase-3, -9 and PARP in A549 cells. Comparative evaluation of the results indicates that the principal mechanism underlying ACETO-mediated cytotoxicity is likely to be through ERK-mediated intrinsic pathway of apoptosis.
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Affiliation(s)
- Tamanna Zerin
- Department of Microbiology, School of Medicine, Soonchunhyang University, Cheonan, Chungnam 330-090, South Korea
| | - Ho-Yeon Song
- Department of Microbiology, School of Medicine, Soonchunhyang University, Cheonan, Chungnam 330-090, South Korea
| | - Yong-Sik Kim
- Department of Microbiology, School of Medicine, Soonchunhyang University, Cheonan, Chungnam 330-090, South Korea.
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Jung HN, Zerin T, Podder B, Song HY, Kim YS. Cytotoxicity and gene expression profiling of polyhexamethylene guanidine hydrochloride in human alveolar A549 cells. Toxicol In Vitro 2014; 28:684-92. [PMID: 24583197 DOI: 10.1016/j.tiv.2014.02.004] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Revised: 01/24/2014] [Accepted: 02/15/2014] [Indexed: 11/28/2022]
Abstract
In Korea, lung disease of children and pregnant women associated with humidifier disinfectant use has become a major concern. A common sterilizer is polyhexamethylene guanidine (PHMG), a member of the guanidine family of antiseptics. This study was done to elucidate the putative cytotoxic effect of PHMG and the PHMG-mediated altered gene expression in human alveolar epithelial A549 cells in vitro. Cell viability analyses revealed the potent cytotoxicity of PHMG, with cell death evident at as low as 5 μg/mL. Death was dose- and time-dependent, and was associated with formation of intracellular reactive oxygen species, and apoptosis significantly, at even 2 μg/mL concentration. The gene expression profile in A549 cells following 24 h exposure to 5 μg/mL of PHMG was investigated using DNA microarray analysis. Changes in gene expression relevant to the progression of cell death included induction of genes related to apoptosis, autophagy, fibrosis, and cell cycle. However, the expressions of genes encoding antioxidant and detoxifying enzymes were down-regulated or not affected. The altered expression of selected genes was confirmed by quantitative reverse transcription-polymerase chain reaction and Western blot analyses. The collective data suggest that PHMG confers cellular toxicity through the generation of intracellular reactive oxygen species and alteration of gene expression.
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Affiliation(s)
- Ha-Na Jung
- Department of Microbiology, College of Medicine, Soonchunhyang University, South Korea
| | - Tamanna Zerin
- Department of Microbiology, College of Medicine, Soonchunhyang University, South Korea
| | - Biswajit Podder
- Department of Microbiology, College of Medicine, Soonchunhyang University, South Korea
| | - Ho-Yeon Song
- Department of Microbiology, College of Medicine, Soonchunhyang University, South Korea.
| | - Yong-Sik Kim
- Department of Microbiology, College of Medicine, Soonchunhyang University, South Korea.
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Podder B, Kim YS, Song HY. Cytoprotective effect of bioactive sea buckthorn extract on paraquat-exposed A549 cells via induction of Nrf2 and its downstream genes. Mol Med Rep 2013; 8:1852-60. [PMID: 24141985 DOI: 10.3892/mmr.2013.1736] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2013] [Accepted: 10/01/2013] [Indexed: 11/06/2022] Open
Abstract
The extract of sea buckthorn (SBT) [Hippophae rhamnoides L. (Elaeagnaceae)], is used as a food supplement and traditional medicine in numerous countries. This study investigated the protective effects of the functional extract of SBT against paraquat (PQ)-induced toxicity via antioxidant mechanisms in A549 cells. The methanol extract of SBT (25-200 µg/ml) was used to protect cells against PQ (200 µM)-induced cell death. A viability assay was conducted using 3-(4,5-dimethylthioazol-2-ly)-2,5-diphenyltetrazolium bromide and lactate dehydrogenase (LDH). Total intracellular reactive oxygen species (ROS) were measured and plotted. For validation of the SBT-induced expression of nuclear factor-E2-related factor 2 (Nrf2) and its target genes, western blot analysis and qPCR were performed. The present study showed that pretreatment of A549 cells with SBT extract significantly attenuated PQ (200 µM)-induced cellular toxicity. The maximum cytoprotective effect was identified using 200 µg/ml SBT extract; it began 24 h following exposure and was sustained up to 120 h (P<0.05). SBT extract significantly reduced LDH activity by 35.63% and ROS levels by 30.90% (P<0.05). Pretreatment with SBT extract activated Nrf2 mRNA and protein expression and its nuclear translocation. The SBT extract effectively induced Nrf2 target genes, such as NAD(P)H dehydrogenase quinone 1, glutathione peroxidase 1, glutathione reductase and catalase following treatment with PQ. Based on these results, it was hypothesized that SBT extract may be used as a potential therapeutic agent for the treatment of various oxidative stress-related diseases.
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Affiliation(s)
- Biswajit Podder
- Department of Microbiology, College of Medicine, Soonchunhyang University, Cheonan, Chungnam 330-721, Republic of Korea
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Vilas-Boas V, Silva R, Guedes-de-Pinho P, Carvalho F, Bastos ML, Remião F. RBE4 cells are highly resistant to paraquat-induced cytotoxicity: studies on uptake and efflux mechanisms. J Appl Toxicol 2013; 34:1023-30. [PMID: 24105845 DOI: 10.1002/jat.2926] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2013] [Revised: 07/26/2013] [Accepted: 08/04/2013] [Indexed: 01/18/2023]
Affiliation(s)
- V. Vilas-Boas
- REQUIMTE, Laboratório de Toxicologia, Departamento de Ciências Biológicas, Faculdade de Farmácia; Universidade do Porto; Rua de Jorge Viterbo Ferreira, 228, Edifício 3, 4º piso 4050-313 Porto Portugal
| | - R. Silva
- REQUIMTE, Laboratório de Toxicologia, Departamento de Ciências Biológicas, Faculdade de Farmácia; Universidade do Porto; Rua de Jorge Viterbo Ferreira, 228, Edifício 3, 4º piso 4050-313 Porto Portugal
| | - P. Guedes-de-Pinho
- REQUIMTE, Laboratório de Toxicologia, Departamento de Ciências Biológicas, Faculdade de Farmácia; Universidade do Porto; Rua de Jorge Viterbo Ferreira, 228, Edifício 3, 4º piso 4050-313 Porto Portugal
| | - F. Carvalho
- REQUIMTE, Laboratório de Toxicologia, Departamento de Ciências Biológicas, Faculdade de Farmácia; Universidade do Porto; Rua de Jorge Viterbo Ferreira, 228, Edifício 3, 4º piso 4050-313 Porto Portugal
| | - M. L. Bastos
- REQUIMTE, Laboratório de Toxicologia, Departamento de Ciências Biológicas, Faculdade de Farmácia; Universidade do Porto; Rua de Jorge Viterbo Ferreira, 228, Edifício 3, 4º piso 4050-313 Porto Portugal
| | - F. Remião
- REQUIMTE, Laboratório de Toxicologia, Departamento de Ciências Biológicas, Faculdade de Farmácia; Universidade do Porto; Rua de Jorge Viterbo Ferreira, 228, Edifício 3, 4º piso 4050-313 Porto Portugal
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Aires RD, Capettini LSA, Silva JF, Rodrigues-Machado MDG, Pinho V, Teixeira MM, Cortes SF, Lemos VS. Paraquat poisoning induces TNF-α-dependent iNOS/NO mediated hyporesponsiveness of the aorta to vasoconstrictors in rats. PLoS One 2013; 8:e73562. [PMID: 24039983 PMCID: PMC3767802 DOI: 10.1371/journal.pone.0073562] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Accepted: 07/19/2013] [Indexed: 02/07/2023] Open
Abstract
Paraquat is a toxic herbicide that may induce acute lung injury, circulatory failure and death. The present work aimed at investigating whether there is systemic inflammation and vascular dysfunction after paraquat exposure and whether these parameters were related. There was neutrophilia and accumulation of neutrophils in lung and bronchoalveolar lavage of animals given paraquat. This was associated with an increase in serum levels of TNF-α. In rats given paraquat, the relaxant response of aortic rings to acetylcholine was not modified but the contractile response to phenylephrine was greatly reduced. Endothelium removal or treatment with non-selective (L-NAME) or selective (L-NIL) inhibitors of inducible nitric oxide synthase (iNOS) restored contraction of aortas. There was greater production of nitric oxide (NO), which was restored to basal level by L-NIL, and greater expression of iNOS in endothelial cells, as seen by Western blot analyses and confocal microscopy. Blockade of TNF-α reduced pulmonary and systemic inflammation and vascular dysfunction. Together, our results clearly show that paraquat causes pulmonary and systemic inflammation, and vascular dysfunction in rats. Vascular dysfunction is TNF-α dependent, associated with enhanced expression of iNOS in aortic endothelial cells and greater NO production, which accounts for the decreased responsiveness of aortas to vasoconstrictors. Blockers of TNF-α may be useful in patients with paraquat poisoning.
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Affiliation(s)
- Rosária D. Aires
- Department of Physiology and Biophysics, ICB, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Luciano S. A. Capettini
- Department of Pharmacology, ICB, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Josiane F. Silva
- Department of Physiology and Biophysics, ICB, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | | | - Vanessa Pinho
- Department of Morphology, ICB, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Mauro M. Teixeira
- Department of Biochemistry and Immunology, ICB, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Steyner F. Cortes
- Department of Pharmacology, ICB, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Virginia S. Lemos
- Department of Physiology and Biophysics, ICB, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
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Protective effects of naringin against paraquat-induced acute lung injury and pulmonary fibrosis in mice. Food Chem Toxicol 2013; 58:133-40. [DOI: 10.1016/j.fct.2013.04.024] [Citation(s) in RCA: 90] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2013] [Revised: 03/24/2013] [Accepted: 04/05/2013] [Indexed: 02/08/2023]
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Docosahexaenoic acid (DHA) ameliorates paraquat-induced pulmonary fibrosis in rats possibly through up-regulation of Smad 7 and SnoN. Food Chem Toxicol 2013; 57:330-7. [DOI: 10.1016/j.fct.2013.03.045] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2012] [Revised: 03/10/2013] [Accepted: 03/28/2013] [Indexed: 01/25/2023]
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Omura T, Asari M, Yamamoto J, Oka K, Hoshina C, Maseda C, Awaya T, Tasaki Y, Shiono H, Yonezawa A, Masuda S, Matsubara K, Shimizu K. Sodium tauroursodeoxycholate prevents paraquat-induced cell death by suppressing endoplasmic reticulum stress responses in human lung epithelial A549 cells. Biochem Biophys Res Commun 2013; 432:689-94. [DOI: 10.1016/j.bbrc.2013.01.131] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2013] [Accepted: 01/29/2013] [Indexed: 01/16/2023]
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Zerin T, Kim YS, Hong SY, Song HY. Quercetin reduces oxidative damage induced by paraquat via modulating expression of antioxidant genes in A549 cells. J Appl Toxicol 2012; 33:1460-7. [DOI: 10.1002/jat.2812] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2012] [Revised: 07/16/2012] [Accepted: 07/16/2012] [Indexed: 11/12/2022]
Affiliation(s)
- Tamanna Zerin
- Department of Microbiology, School of Medicine; Soonchunhyang University; Cheonan Chungnam 330-090 South Korea
| | - Yong-Sik Kim
- Department of Microbiology, School of Medicine; Soonchunhyang University; Cheonan Chungnam 330-090 South Korea
| | - Sae-Yong Hong
- Department of Internal Medicine; Soonchunhyang University Hospital; Cheonan Korea
| | - Ho-Yeon Song
- Department of Microbiology, School of Medicine; Soonchunhyang University; Cheonan Chungnam 330-090 South Korea
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Zhang Q, Wu WZ, Lu YQ, Wang JZ, Shang AD, Yao F, Chen Y. Successful treatment of patients with paraquat intoxication: three case reports and review of the literature. J Zhejiang Univ Sci B 2012; 13:413-8. [PMID: 22556181 DOI: 10.1631/jzus.b1200008] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE To report on three patients with paraquat (PQ) intoxication surviving after combined therapy with hemoperfusion (HP), cyclophosphamide (CTX), and glucocorticoid. METHODS Three patients suffered acute renal failure in a few days after ingesting a lethal amount of PQ. Chest computed tomography (CT) scans revealed obvious pulmonary inflammation, pleural effusion, and fibrous lesions several days after ingestion. HP was performed immediately, followed by large doses of glucocorticoid (methylprednisolone, 500 g/d) and CTX (approximately 4 g). RESULTS After 50 d of treatments, all three patients were discharged in healthy condition, with chest CT showing small fibrous lesions, exudation, and both lungs clear of auscultation. CONCLUSIONS The protective effect of the lungs may have been due to timely treatment at adequate doses.
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Affiliation(s)
- Qin Zhang
- Department of Emergency, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
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Podder B, Kim YS, Zerin T, Song HY. Antioxidant effect of silymarin on paraquat-induced human lung adenocarcinoma A549 cell line. Food Chem Toxicol 2012; 50:3206-14. [DOI: 10.1016/j.fct.2012.06.007] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2012] [Revised: 06/04/2012] [Accepted: 06/07/2012] [Indexed: 12/31/2022]
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