Fig. 3From: Differential gene expression of 3D primary human airway cultures exposed to cigarette smoke and electronic nicotine delivery system (ENDS) preparationsFull model hierarchical clustering of all DEGs which were significantly different between WS-CM, ACM and vehicle. In the heatmap expression values for genes are represented as rows, while the samples are shown as columns. The scale (color scheme) goes from − 4 (green for genes decreased) to 0 (black) and + 4 (red for genes increased) representing log2 FC of the genes in the different conditions. Dosage indicates nicotine concentration in the different preparations and is given in µg/mL Eq-Nic. units. DEGs identified using cut-off criteria of log2 fold change > 2 or < − 2, and adjusted p-value < 0.05Back to article page