Also, combination infections with ΔNp73β led to increased expression of additional basal keratinocyte genes (e.g. ITGA3, ITGB4, KRT6A, KRT16, COL7A1, and CDH1) and decreased expression of fibroblast genes (e.g. VIM, MME, and MMP1; S4 Table). This evidence concerns the gene ITGB4 and infection.