Prediction value of intercellular adhesion molecule-1 gene polymorphisms for epithelial ovarian cancer risk, clinical features, and prognosis

Abstract

Intercellular adhesion molecule-1 (ICAM-1, encoded by ICAM-1) is implicated in tumorigenesis and tumor progression. ICAM-1 modulates the susceptibility to several types of cancer and the disease prognosis; however, its role in epithelial ovarian cancer (EOC) is unclear. Here, we evaluate single nucleotide polymorphisms (SNPs) in ICAM-1 as predictors of EOC risk and prognosis. Six ICAM-1 polymorphisms were genotyped in 408 patients with EOC and 520 controls using the MassARRAY system. The ICAM-1 mRNA levels in 89 EOC tissues and 35 normal ovarian tissues were examined using quantitative PCR. The ICAM-1 rs5498 G allele was associated with increased tumor grade (OR. =. 2.650) and EOC risk (OR. =. 1.405). This risk was more evident in females who had first-degree relatives (FDRs) with a tumor (OR. =. 3.475) or who experienced early menarche (OR. =. 2.774). The ICAM-1 expression in the cancerous tissue was elevated compared with that of normal ovarian tissues (. p. 0.05). However, the rs5498 G allele correlated with EOC survival time in patients whose FDRs suffered from a tumor (. p=. 0.001). ICAM-1 rs5498 likely confers a high risk for EOC in G allele carriers accompanied by up-regulation of ICAM-1 expression during carcinogenesis. The combination of ICAM-1 rs5498 and tumor history predicts the EOC prognosis. © 2013 Elsevier B.V.