EGR1 and non-small cell lung carcinoma: Further, high levels of EGR1 correlate with improved survival in NSCLC patients (Ferraro et al, 2005) and is upregulated when NSCLC cells are treated with the apoptosis-inducing retinoid 6-[3-(1-adamantyl)-4-hydroxyphenyl]-2-naphthalene carboxylic acid (Sakaue et al, 2001).