IMP-1 ONCOGENE AS A THERAPEUTIC TARGET AND PROGNOSTIC INDICATOR FOR LUNG CANCER

摘要

IMP-1 was abundantly expressed in the majority of lung-cancers examined. Positive immunostaining of IMP-1 was correlated with tumor size (pT-classification; P=0.0003), non-adenocarcinoma histology (P0.0001), low-histological grade (P=0.0001), and poor prognosis (P=0.0053). Suppression of IMP-1 expression with siRNA effectively suppressed growth of NSCLC cells. IMP-1 was able to bind to mRNAs encoding a variety of proteins involved in signal transduction, cell-cycle progression, cell adhesion and cytoskeleton, and various types of enzymatic activities. These results suggest that IMP-1 expression is likely to play important roles in lung cancer development and progression, and that IMP-1 is a prognostic marker and a promising therapeutic target for treatment of lung cancer.