Furthermore, oncobiosis supports epithelial-to-mesenchymal transition (EMT) [16,17,40,44], migration and invasion [17,40], the reduction of oxidative stress [40,45], the proportions of ALDH1+ cancer stem cells [17,40], and widespread metabolic alterations [16,17,40] in cancers cells. This evidence concerns the gene ALDH1A1 and cancer.