Analysis of NSAID-Activated Gene 1 Expression in Prostate Cancer.

Nonsteroidal anti-inflammatory drugs (NSAIDs) induce expression of NSAID-activated gene 1 (NAG-1). NAG-1 expression in prostate cancer has previously been detected by microarray and immunohistochemical analyses. We examined the mRNA expression of NAG-1 by quantitative real-time polymerase chain reaction using 51 human prostate cancer tissue specimens. The level of NAG-1 expression was higher in prostate cancer than in normal prostate tissues (p = 0.025). The level of NAG-1 expression was also significantly higher in well-differentiated prostate cancer than in moderately (p = 0.04) and poorly differentiated adenocarcinomas (p = 0.03). These data suggest that NAG-1 may be a new biomarker for evaluating the grade of malignancy in prostate cancer. Copyright © 2010 S. Karger AG, Basel [ABSTRACT FROM AUTHOR]