다환성방향족탄화수소 노출에 대한 감수성에 미치는 CYP2E1의 작용Action-mechanisms of genetic polymorphism in the CYP2E1 on susceptibility to polycyclic aromatic hydrocarbons
- Other Titles
- Action-mechanisms of genetic polymorphism in the CYP2E1 on susceptibility to polycyclic aromatic hydrocarbons
- Authors
- 강혁준; 박장환; 강진선; 동미숙; 양미희
- Issue Date
- Sep-2005
- Publisher
- 환경독성보건학회
- Keywords
- CYP2E1; Polymorphism; Polycyclic aromatic hydrocarbons (PAHs); Naphthalene; CYP2E1; Polymorphism; Polycyclic aromatic hydrocarbons (PAHs); Naphthalene
- Citation
- 환경독성보건학회지, v.20, no.3, pp 215 - 221
- Pages
- 7
- Journal Title
- 환경독성보건학회지
- Volume
- 20
- Number
- 3
- Start Page
- 215
- End Page
- 221
- URI
- https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/15591
- ISSN
- 2093-6400
- Abstract
- Environmental polycyclic aromatic hydrocarbones (PAHs), which are formed during incomplete combustion of fossil fuels, are widely distributed in our environment. Human exposure to PAHs may occur through smoking, polluted air, food consumption and occupational contact. Urinary naphthols, 1-and 2-naphthol, have been suggested as route-specific biomarkers for exposure to airborne PAHs. Cytochrome p450 2E1 (CYP2E1) is known to be a great importance for the metabolism of organic solvents, which is a precacinogens with small molecular weight. This study describes the metabolic differences between PstI and RsaI polymorphisms (c1 allele: PstI-, RsaI±; c2 allele: PstI±, RsaI-) of CYP2E1 5-flanking region by genetically modified HepG2 cells, which overexpress the polymorphic regions. The results of CAT assay and western blot in the c2 allele overexpressed cells have higher activities than the c1 allele over-expressing cells. However, the metabolism of naphthalene to 2-naphthol has no difference due to the two genotypes. In this study, we established the CYP2E1 polymorphic allele transduced HepG2 cells to screen susceptibility-differences in PAH exposure. In conclusion, the CYP2E1 polymorphism may hardly induce susceptibility differences in PAH exposure monitoring with urinary naphthols.
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