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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Miao, Wenyu Jin, Yuanxiang Lin, Xiaojian Fu, Zhengwei |
| Description | Country affiliation: China Author Affiliation: Miao W ( College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou 310032, China.); Jin Y ( College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou 310032, China.); Lin X ( College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou 310032, China.); Fu Z ( College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou 310032, China. Electronic address: azwfu@zjut.edu.cn.) |
| Abstract | UNLABELLED: The hepatic toxic effects, including carcinogenicity and oxidative stress, of polycyclic aromatic hydrocarbons (PAHs) have been extensively studied in recent years. Previous reports have demonstrated that 3-methylcholanthrene (3MC) is capable of altering the expression of aryl hydrocarbon receptor (AHR)-regulated genes and antioxidant genes in liver, but little is known about the expression patterns in other tissues. To investigate whether similar effects could occur in the extrahepatic tissues, adult male ICR mice were received an intraperitoneal injection of 100 mg/kg 3MC and then analyzed after 6 and 24 h. We observed that the constitutive expression of AHR- and antioxidant-related genes was in a tissue-specific manner. Moreover, acute 3MC exposure significantly increased the mRNA levels of Cyp1a1 and Cyp1b1 in all the lung, kidney and heart. As to antioxidant genes, 3MC induced the transcription of glutathione reductase (Gr) in the lung and kidney at 24 h and the transcription of glutathione peroxidase 1 (Gpx1) in the lung and kidney at 6 and 24 h. Glutathione-S-transferase A1 (Gsta1) was significantly reduced in the kidney at 24 h, while no effect was observed in the lung and heart. The mRNA levels of NAD(P)H: quinone oxidoreductase 1 (Nqo1) were induced by 3MC in all the lung, kidney and heart. Although the constitutive expression of catalase (Cat) is very low in the heart, the transcription of Cat was significantly induced both at 6 and 24 h. No significant alternation in the transcription of glutathione synthetase (Gss), heme oxygenase 1 (Ho-1) and superoxide dismutase 1 (Sod1) was observed in all tissues. Taken together, ours findings suggested that the expression of AHR- and antioxidant-related genes in a tissue-specific manner with or without treatment of a PAH. |
| File Format | HTM / HTML |
| ISSN | 13826689 |
| Issue Number | 2 |
| Volume Number | 37 |
| e-ISSN | 18727077 |
| Journal | Environmental Toxicology and Pharmacology |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2014-03-01 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Environmental Health Discipline Pharmacology Environmental Pollutants Toxicity Gene Expression Drug Effects Kidney Lung Methylcholanthrene Myocardium Metabolism Animals Catalase Genetics Cytochrome P-450 Cyp1a1 Cytochrome P-450 Cyp1b1 Glutathione Peroxidase Glutathione Reductase Glutathione Synthase Glutathione Transferase Glyceraldehyde-3-phosphate Dehydrogenase (phosphorylating) Heme Oxygenase-1 Isoenzymes Male Membrane Proteins Mice, Inbred Icr Nad(p)h Dehydrogenase (quinone) Rna, Messenger Real-time Polymerase Chain Reaction Receptors, Aryl Hydrocarbon Superoxide Dismutase Journal Article Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Health, Toxicology and Mutagenesis Medicine Toxicology Pharmacology |
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