CYP1A1 gene polymorphisms as a risk factor for pterygium

Chi Hsien Young, Yu Lun Lo, Yi Yu Tsai, Tung Sheng Shih, Huei Lee, Ya Wen Cheng

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Purpose: Both cytochrome P4501A1 (CYP1A1) and glutathione S-transferase M1 (GSTM1) have been demonstrated to be involved in the metabolism of polycyclic aromatic hydrocarbons (PAHs). BaP 7,8-diol 9,10-epoxide (BPDE), an ultimate metabolite of benzo(a)pyrene (BaP), attacks deoxyguanosine to form a BPDE-N2-dG adduct resulting in p53 gene mutations. Our previous report indicated that BPDE-like DNA adduct levels in pterygium were associated with CYP1A1 gene polymorphisms. Therefore, we hypothesize that the genetic polymorphisms of CYP1A1 and GSTM1 increase the risk for pterygium. Methods: Two hundred-five pterygial specimens and 206 normal controls were collected in this study. For the analysis of CYP1A1 and GSTM1 gene polymorphisms, DNA samples were extracted from blood cells and then subjected to restriction fragment length polymorphism and polymerase chain reaction for the determination of mutation and genotype of CYP1A1 and GSTM1. Results: There was a significant difference between the case and control groups in the CYP1A1 genotype (p=0.0161) but not in GSTM1 (p=1.000). The odds ratio of the CYP1A1 m1/m2 polymorphism was 1.327 (95% CI=0.906-2.079, p=0.135) and the m2/m2 polymorphism was 1.647 (95% CI=1.154-2.350, p=0.006), compared to the m1/m1 wild-type genotype. The GSTM1 polymorphisms did not have an increased odds ratio compared with the wild type. Conclusions: In conclusion, a CYP1A1 polymorphism is correlated with pterygium and might become a marker for the prediction of pterygium susceptibility.

Original languageEnglish
Pages (from-to)1054-1058
Number of pages5
JournalMolecular Vision
Volume16
Publication statusPublished - 2010
Externally publishedYes

Fingerprint

Pterygium
Cytochromes
7,8-Dihydro-7,8-dihydroxybenzo(a)pyrene 9,10-oxide
Genes
Genotype
Odds Ratio
Mutation
Deoxyguanosine
DNA Adducts
Benzo(a)pyrene
Polycyclic Aromatic Hydrocarbons
p53 Genes
Genetic Polymorphisms
Restriction Fragment Length Polymorphisms
glutathione S-transferase M1
Blood Cells
Polymerase Chain Reaction
Control Groups
DNA

ASJC Scopus subject areas

  • Ophthalmology

Cite this

Young, C. H., Lo, Y. L., Tsai, Y. Y., Shih, T. S., Lee, H., & Cheng, Y. W. (2010). CYP1A1 gene polymorphisms as a risk factor for pterygium. Molecular Vision, 16, 1054-1058.

CYP1A1 gene polymorphisms as a risk factor for pterygium. / Young, Chi Hsien; Lo, Yu Lun; Tsai, Yi Yu; Shih, Tung Sheng; Lee, Huei; Cheng, Ya Wen.

In: Molecular Vision, Vol. 16, 2010, p. 1054-1058.

Research output: Contribution to journalArticle

Young, CH, Lo, YL, Tsai, YY, Shih, TS, Lee, H & Cheng, YW 2010, 'CYP1A1 gene polymorphisms as a risk factor for pterygium', Molecular Vision, vol. 16, pp. 1054-1058.
Young CH, Lo YL, Tsai YY, Shih TS, Lee H, Cheng YW. CYP1A1 gene polymorphisms as a risk factor for pterygium. Molecular Vision. 2010;16:1054-1058.
Young, Chi Hsien ; Lo, Yu Lun ; Tsai, Yi Yu ; Shih, Tung Sheng ; Lee, Huei ; Cheng, Ya Wen. / CYP1A1 gene polymorphisms as a risk factor for pterygium. In: Molecular Vision. 2010 ; Vol. 16. pp. 1054-1058.
@article{c716a42cf08e4501b0fde7aba01c88cc,
title = "CYP1A1 gene polymorphisms as a risk factor for pterygium",
abstract = "Purpose: Both cytochrome P4501A1 (CYP1A1) and glutathione S-transferase M1 (GSTM1) have been demonstrated to be involved in the metabolism of polycyclic aromatic hydrocarbons (PAHs). BaP 7,8-diol 9,10-epoxide (BPDE), an ultimate metabolite of benzo(a)pyrene (BaP), attacks deoxyguanosine to form a BPDE-N2-dG adduct resulting in p53 gene mutations. Our previous report indicated that BPDE-like DNA adduct levels in pterygium were associated with CYP1A1 gene polymorphisms. Therefore, we hypothesize that the genetic polymorphisms of CYP1A1 and GSTM1 increase the risk for pterygium. Methods: Two hundred-five pterygial specimens and 206 normal controls were collected in this study. For the analysis of CYP1A1 and GSTM1 gene polymorphisms, DNA samples were extracted from blood cells and then subjected to restriction fragment length polymorphism and polymerase chain reaction for the determination of mutation and genotype of CYP1A1 and GSTM1. Results: There was a significant difference between the case and control groups in the CYP1A1 genotype (p=0.0161) but not in GSTM1 (p=1.000). The odds ratio of the CYP1A1 m1/m2 polymorphism was 1.327 (95{\%} CI=0.906-2.079, p=0.135) and the m2/m2 polymorphism was 1.647 (95{\%} CI=1.154-2.350, p=0.006), compared to the m1/m1 wild-type genotype. The GSTM1 polymorphisms did not have an increased odds ratio compared with the wild type. Conclusions: In conclusion, a CYP1A1 polymorphism is correlated with pterygium and might become a marker for the prediction of pterygium susceptibility.",
author = "Young, {Chi Hsien} and Lo, {Yu Lun} and Tsai, {Yi Yu} and Shih, {Tung Sheng} and Huei Lee and Cheng, {Ya Wen}",
year = "2010",
language = "English",
volume = "16",
pages = "1054--1058",
journal = "Molecular Vision",
issn = "1090-0535",

}

TY - JOUR

T1 - CYP1A1 gene polymorphisms as a risk factor for pterygium

AU - Young, Chi Hsien

AU - Lo, Yu Lun

AU - Tsai, Yi Yu

AU - Shih, Tung Sheng

AU - Lee, Huei

AU - Cheng, Ya Wen

PY - 2010

Y1 - 2010

N2 - Purpose: Both cytochrome P4501A1 (CYP1A1) and glutathione S-transferase M1 (GSTM1) have been demonstrated to be involved in the metabolism of polycyclic aromatic hydrocarbons (PAHs). BaP 7,8-diol 9,10-epoxide (BPDE), an ultimate metabolite of benzo(a)pyrene (BaP), attacks deoxyguanosine to form a BPDE-N2-dG adduct resulting in p53 gene mutations. Our previous report indicated that BPDE-like DNA adduct levels in pterygium were associated with CYP1A1 gene polymorphisms. Therefore, we hypothesize that the genetic polymorphisms of CYP1A1 and GSTM1 increase the risk for pterygium. Methods: Two hundred-five pterygial specimens and 206 normal controls were collected in this study. For the analysis of CYP1A1 and GSTM1 gene polymorphisms, DNA samples were extracted from blood cells and then subjected to restriction fragment length polymorphism and polymerase chain reaction for the determination of mutation and genotype of CYP1A1 and GSTM1. Results: There was a significant difference between the case and control groups in the CYP1A1 genotype (p=0.0161) but not in GSTM1 (p=1.000). The odds ratio of the CYP1A1 m1/m2 polymorphism was 1.327 (95% CI=0.906-2.079, p=0.135) and the m2/m2 polymorphism was 1.647 (95% CI=1.154-2.350, p=0.006), compared to the m1/m1 wild-type genotype. The GSTM1 polymorphisms did not have an increased odds ratio compared with the wild type. Conclusions: In conclusion, a CYP1A1 polymorphism is correlated with pterygium and might become a marker for the prediction of pterygium susceptibility.

AB - Purpose: Both cytochrome P4501A1 (CYP1A1) and glutathione S-transferase M1 (GSTM1) have been demonstrated to be involved in the metabolism of polycyclic aromatic hydrocarbons (PAHs). BaP 7,8-diol 9,10-epoxide (BPDE), an ultimate metabolite of benzo(a)pyrene (BaP), attacks deoxyguanosine to form a BPDE-N2-dG adduct resulting in p53 gene mutations. Our previous report indicated that BPDE-like DNA adduct levels in pterygium were associated with CYP1A1 gene polymorphisms. Therefore, we hypothesize that the genetic polymorphisms of CYP1A1 and GSTM1 increase the risk for pterygium. Methods: Two hundred-five pterygial specimens and 206 normal controls were collected in this study. For the analysis of CYP1A1 and GSTM1 gene polymorphisms, DNA samples were extracted from blood cells and then subjected to restriction fragment length polymorphism and polymerase chain reaction for the determination of mutation and genotype of CYP1A1 and GSTM1. Results: There was a significant difference between the case and control groups in the CYP1A1 genotype (p=0.0161) but not in GSTM1 (p=1.000). The odds ratio of the CYP1A1 m1/m2 polymorphism was 1.327 (95% CI=0.906-2.079, p=0.135) and the m2/m2 polymorphism was 1.647 (95% CI=1.154-2.350, p=0.006), compared to the m1/m1 wild-type genotype. The GSTM1 polymorphisms did not have an increased odds ratio compared with the wild type. Conclusions: In conclusion, a CYP1A1 polymorphism is correlated with pterygium and might become a marker for the prediction of pterygium susceptibility.

UR - http://www.scopus.com/inward/record.url?scp=77955643789&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77955643789&partnerID=8YFLogxK

M3 - Article

VL - 16

SP - 1054

EP - 1058

JO - Molecular Vision

JF - Molecular Vision

SN - 1090-0535

ER -