The CRP 1846T/T genotype is associated with a poor prognosis in patients with non-small cell lung cancer.
C-reactive protein (CRP) is one of the acute-phase proteins produced predominantly by hepatocytes in response to inflammation, and it has been widely reported that CRP genetic polymorphism is a risk factor for cardiovascular disease and ischemic stroke. In addition, we previously showed that the CRP 1846T/T genotype is related to lymph node metastasis in patients with esophageal cancer. In the present study, we investigated the correlation between CRP 1846C>T polymorphism and the clinicopathological characteristics of non-small cell lung cancer (NSCLC). The study participants were 146 Japanese patients who underwent curative surgery for NSCLC. DNA was extracted from tumor samples, and CRP1846C>T polymorphism was investigated using the polymerase chain reaction-restriction fragment length polymorphism method. We then correlated genotype with known clinicopathological factors. Five-year overall survival among patients with the CRP 1846T/T genotype was significantly lower than among those with the 1846C/C or C/T genotype (p = 0.002, p = 0.001; log-rank test). Multivariate Cox proportional hazard analysis revealed age, sex, pathological stage III, and 1846T/T (hazard ratio, 1.76; 95% confidence interval, 1.003-3.16; p = 0.049) to be independent factors affecting 5-year overall survival. These findings suggest the CRP 1846T/T genotype is an independent predictor of a poor prognosis in patients with NSCLC.
Minamiya
Yoshihiro
Y
Division of Thoracic Surgery, Department of Surgery, Akita University School of Medicine, 1-1-1 Hondo, Akita City 010-8543, Japan. minamiya@med.akita-u.ac.jp
Miura
Masatomo
M
Hinai
Yudai
Y
Saito
Hajime
H
Ito
Manabu
M
Imai
Kazuhiro
K
Ono
Takashi
T
Motoyama
Satoru
S
Ogawa
Jun-ichi
J
D000368:Aged; D002097:C-Reactive Protein / Q000235:genetics*; D002289:Carcinoma, Non-Small-Cell Lung / Q000175:diagnosis* / Q000235:genetics* / Q000401:mortality; D005260:Female; D005838:Genotype; D006801:Humans; D007564:Japan; D008175:Lung Neoplasms / Q000175:diagnosis* / Q000235:genetics* / Q000401:mortality; D008297:Male; D008875:Middle Aged; D011110:Polymorphism, Genetic / Q000235:genetics*; D011379:Prognosis; D016016:Proportional Hazards Models; D015996:Survival Rate
D002097:C-Reactive Protein