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CYP1A1 and CYP1B1 polymorphisms and risk of lung cancer among never smokers: a population-based study.
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- Author(s): Wenzlaff AS;Wenzlaff AS; Cote ML; Bock CH; Land SJ; Santer SK; Schwartz DR; Schwartz AG
- Source:
Carcinogenesis [Carcinogenesis] 2005 Dec; Vol. 26 (12), pp. 2207-12. Date of Electronic Publication: 2005 Jul 28.- Publication Type:
Comparative Study; Journal Article; Research Support, N.I.H., Extramural- Language:
English - Source:
- Additional Information
- Source: Publisher: Irl Press At Oxford University Press Country of Publication: England NLM ID: 8008055 Publication Model: Print-Electronic Cited Medium: Print ISSN: 0143-3334 (Print) Linking ISSN: 01433334 NLM ISO Abbreviation: Carcinogenesis Subsets: MEDLINE
- Publication Information: Publication: Oxford : Irl Press At Oxford University Press
Original Publication: [New York, IRL Press] - Subject Terms: Polymorphism, Genetic*; Aryl Hydrocarbon Hydroxylases/*genetics ; Cytochrome P-450 CYP1A1/*genetics ; Lung Neoplasms/*epidemiology ; Lung Neoplasms/*genetics ; Tobacco Smoke Pollution/*adverse effects; Adenocarcinoma/genetics ; Black or African American/genetics ; Alleles ; Carcinoma, Large Cell/genetics ; Carcinoma, Small Cell/genetics ; Carcinoma, Squamous Cell/genetics ; Case-Control Studies ; Cytochrome P-450 CYP1B1 ; Female ; Genetic Predisposition to Disease ; Genotype ; Glutathione S-Transferase pi/genetics ; Glutathione Transferase/genetics ; Humans ; Male ; Middle Aged ; NAD(P)H Dehydrogenase (Quinone)/genetics ; Risk Factors ; SEER Program ; Smoking ; United States/epidemiology ; White People/genetics
- Abstract: The cytochrome P450 (CYP) superfamily of enzymes catalyse one of the first steps in the metabolism of carcinogens such as polycyclic aromatic hydrocarbons, nitroaromatics and arylamines. Polymorphisms within the CYP1A1 gene have been shown to be associated with lung cancer risk, predominantly among Asian populations. Despite functional evidence of a possible role of CYP1B1 in lung cancer susceptibility, only a few studies have evaluated polymorphisms in this gene in relation to lung cancer susceptibility. This population-based study evaluates polymorphisms in both of these CYP genes within never smokers, most of whom had environmental tobacco smoke (ETS) exposure. Cases (n = 160) were identified through the metropolitan Detroit Surveillance, Epidemiology and End Results program, and age, sex and race-matched population-based controls (n = 181) were identified using random digit dialing. Neither CYP1A1 MspI nor CYP1A1 Ile(462)Val was associated with lung cancer susceptibility among Caucasians or African-Americans. Among Caucasians, however, CYP1B1 Leu(432)Val was significantly associated with lung cancer susceptibility odds ratio (OR) for at least one valine allele = 2.87 [95% confidence interval (CI) 1.63-5.07]. Combinations of this Phase I enzyme polymorphism along with selected Phase II enzyme polymorphisms (GSTM1 null, GSTP1 Ile(105)Val and NQO1 C(609)T) were evaluated. The combination of CYP1B1 Leu(432)Val and NQO1 C(609)T appeared to be associated with the highest risk of lung cancer (OR = 4.14, 95% CI 1.60-10.74), although no combinations differed significantly from the risk associated with CYP1B1 Leu(432)Val alone. When individuals were stratified by household ETS exposure (yes/no), CYP1B1 Leu(432)Val alone and in combination with Phase II enzyme polymorphisms was more strongly associated with increased lung cancer susceptibility among those with at least some household ETS exposure. Additional studies will be required to further validate these findings among never smokers and to evaluate the effects of this polymorphism among smoking populations as well.
- Grant Information: N01-CN65064 United States CN NCI NIH HHS; N01-CP35145 United States CP NCI NIH HHS; R01-CA60691 United States CA NCI NIH HHS
- Accession Number: 0 (Tobacco Smoke Pollution)
EC 1.14.14.1 (Aryl Hydrocarbon Hydroxylases)
EC 1.14.14.1 (CYP1B1 protein, human)
EC 1.14.14.1 (Cytochrome P-450 CYP1A1)
EC 1.14.14.1 (Cytochrome P-450 CYP1B1)
EC 1.6.5.2 (NAD(P)H Dehydrogenase (Quinone))
EC 1.6.5.2 (NQO1 protein, human)
EC 2.5.1.- (glutathione S-transferase T1)
EC 2.5.1.18 (GSTP1 protein, human)
EC 2.5.1.18 (Glutathione S-Transferase pi)
EC 2.5.1.18 (Glutathione Transferase) - Publication Date: Date Created: 20050730 Date Completed: 20060105 Latest Revision: 20221207
- Publication Date: 20221213
- Accession Number: 10.1093/carcin/bgi191
- Accession Number: 16051642
- Source:
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