cancers Article ATM Dependent DUSP6 Modulation of p53 Involved in Synergistic Targeting of MAPK and p53 Pathways with Trametinib and MDM2 Inhibitors in Cutaneous Melanoma Chiao-En Wu 1,2 , Tsin Shue Koay 1 , Arman Esfandiari 1,3, Yi-Hsuan Ho 1, Penny Lovat 4 and John Lunec 1,* 1 ...