The analysis of skin SCC signatures from FAK single KO mice, which are more refractory to DMBA-induced SCC formation, showed 21 common genes between Tgfbr2 cKO anorectal CD34+ CSCs and the CD34Lopopulation (***p value=5.35×10−26) and one gene related to the RAC/RHO/RAS pathway was found in common (Pdgfrb). Here, PTK2 is linked to neoplasm.