Gene expression analysis in response to gemcitabine and combined treatment.

<p>Heatmap of 2702 significant differentially expressed genes in gemcitabine resistant, GEM-R and gemcitabine sensitive, GEM-S treated with gemcitabine alone (Gem) or in combination with gossypol (Gem+GOS) relative to untreated matched control cell lines. The expression levels of each gene are higher and lower than control is depicted in red and green, respectively.