ITGA6 and cancer: The distribution of CD49F (integrin α6) in various stem cell populations suggests its involvement in the stemness (pluripotent) maintenance; it was identified on the surface of, i.a., embryonic stem cells, hair follicle stem cells, hematopoietic stem cells, neural stem cells, and some cancer stem cells (Krebsbach and Villa-Diaz, 2017).