title: SNP rs1059234 in CDKN1A Gene Correlates with Prognosis in Resected Gastric Adenocarcinoma.
abstract: BACKGROUND
  Cyclin-dependent kinase inhibitor 1A (CDKN1A) and Cyclin D1 (CCND1) play essential roles in the regulation of cell cycle progression and are closely associated with human cancer. CDKN1A and CCND1 single nucleotide polymorphisms (SNPs) have been demonstrated to influence the prognosis in humans with different cancers. However, their roles in the prognosis of patients with resected gastric adenocarcinoma (RGA) remain to be determined.
  
  
  METHODS
  Genotypes of CDKN1A rs1059234 and CCND1 rs603965 SNPs were performed in 235 tissue samples from RGA. The association of the genotypes of these two SNPs with the prognosis in the patients with RGA was analyzed by X2 test, multivariate Cox regression analyses, and Kaplan Meier curves.
  
  
  RESULTS
  During the 50 months of median follow-up time, the overall recurrence and survival rate in the whole group was 57.4% and 46.8%, respectively. Whereas, recurrence and survival rate in patients with CC genotype of rs1059234 located in 3'UTR of CDKN1A were 78.0% and 27.1% (p = 0.004; p = 0.006). Multivariate analyses further confirmed that the CC genotype was significantly related with both increased recurrence and death risk (HR 3.33, 95% CI 1.95-5.70; p = 1.07 x 10⁻⁵, and HR 3.45, 95% CI 1.95-6.10; p = 2.03 x 10⁻⁵). No significant difference among CCND1 rs603965 SNP with the prognosis was determined.
  
  
  CONCLUSIONS
  rs1059234 of CDKN1A is closely associated with the prognosis in patients with RGA.
authors.forename: Xiaojing
authors.initials: X
authors.lastname: Nie
authors.forename: Xiaoting
authors.initials: X
authors.lastname: Wang
authors.forename: Youdong
authors.initials: Y
authors.lastname: Lin
authors.forename: Yinghao
authors.initials: Y
authors.lastname: Yu
authors.forename: Wei
authors.initials: W
authors.lastname: Liu
authors.forename: Feilai
authors.initials: F
authors.lastname: Xie
authors.forename: Xuzhou
authors.initials: X
authors.lastname: Wang
authors.forename: Jianming
authors.initials: J
authors.lastname: Tan
authors.forename: Qiaojia
authors.initials: Q
authors.lastname: Huang
mesh_terms: D000230:Adenocarcinoma / Q000235:genetics* / Q000401:mortality; D000328:Adult; D000368:Aged; D050759:Cyclin-Dependent Kinase Inhibitor p21 / Q000235:genetics*; D005260:Female; D019940:Genes, bcl-1; D006801:Humans; D008297:Male; D008875:Middle Aged; D020641:Polymorphism, Single Nucleotide; D011379:Prognosis; D013274:Stomach Neoplasms / Q000235:genetics* / Q000401:mortality
chemical_list: C493956:CDKN1A protein, human; D050759:Cyclin-Dependent Kinase Inhibitor p21