Association between genetic polymorphisms of glutathione S-transferase P1 and N-acetyltransferase 2 and susceptibility to squamous-cell carcinoma of the esophagus.
We examined the effect of genetic polymorphisms of phase-II enzymes, glutathione S-transferase P1 (GSTP1) and N-acetyltransferase2 (NAT2) on susceptibility to esophageal squamous-cell carcinoma To determine the genotypes of the 2 polymorphisms, PCR-based analysis was performed on samples from 66 Japanese patients who had been histologically diagnosed as having esophageal squamous-cell carcinoma, and 164 healthy Japanese controls. The frequency of the AA genotype of GSTP1 was significantly higher in esophageal-cancer patients than in the controls according to logistic-regression analysis (92% of the patients and 68% of the controls; odds ratio (OR), 8.0; p = 0.0013). Also, more patients had the slow and intermediate acetylator genotypes of NAT2 than the controls (15% and 38% vs. 10% and 32% respectively; OR of the slow acetylator genotype, 4.2; p = 0.032; OR of the slow plus intermediate acetylator genotypes, 2.9; p = 0.015). Polymorphisms of GSTP1 and NAT2 may serve as genetic biomarkers for predicting susceptibility to esophageal squamous-cell carcinoma.
Morita
S
S
Department of Surgery II, Osaka University Medical School, Suita, Japan. smorita@surg2.med.osaka-u.ac.jp
Yano
M
M
Tsujinaka
T
T
Ogawa
A
A
Taniguchi
M
M
Kaneko
K
K
Shiozaki
H
H
Doki
Y
Y
Inoue
M
M
Monden
M
M
D000328:Adult; D000368:Aged; D001191:Arylamine N-Acetyltransferase / Q000235:genetics*; D014408:Biomarkers, Tumor; D002294:Carcinoma, Squamous Cell / Q000201:enzymology / Q000235:genetics*; D004198:Disease Susceptibility / Q000201:enzymology; D004938:Esophageal Neoplasms / Q000201:enzymology / Q000235:genetics*; D005260:Female; D005787:Gene Frequency; D020022:Genetic Predisposition to Disease; D005838:Genotype; D005982:Glutathione Transferase / Q000235:genetics*; D006801:Humans; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D016133:Polymerase Chain Reaction; D011110:Polymorphism, Genetic
D014408:Biomarkers, Tumor; D001191:Arylamine N-Acetyltransferase; C478900:NAT2 protein, human; D005982:Glutathione Transferase