Tumor Biology

, Volume 31, Issue 6, pp 673–679 | Cite as

The CRP 1846T/T genotype is associated with a poor prognosis in patients with non-small cell lung cancer

  • Yoshihiro MinamiyaEmail author
  • Masatomo Miura
  • Yudai Hinai
  • Hajime Saito
  • Manabu Ito
  • Kazuhiro Imai
  • Takashi Ono
  • Satoru Motoyama
  • Jun-ichi Ogawa
Research Article


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.


Lung cancer C-reactive protein Polymorphism Prognosis 



This work was supported, in part, by Grants-in-Aid for Scientific Research from the Ministry of Education, Culture, Science, Sports, and Technology of Japan.


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Copyright information

© International Society of Oncology and BioMarkers (ISOBM) 2010

Authors and Affiliations

  • Yoshihiro Minamiya
    • 1
    Email author
  • Masatomo Miura
    • 2
  • Yudai Hinai
    • 2
  • Hajime Saito
    • 1
  • Manabu Ito
    • 1
  • Kazuhiro Imai
    • 1
  • Takashi Ono
    • 1
  • Satoru Motoyama
    • 1
  • Jun-ichi Ogawa
    • 1
  1. 1.Division of Thoracic Surgery, Department of SurgeryAkita University School of MedicineAkita CityJapan
  2. 2.Department of PharmacyAkita University HospitalAkita CityJapan

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