SK2188 is a highly efficient and selective PROTAC degrader targeting AURKA (DC50 = 3.9 nM). SK2188 induces DNA damage and cell apoptosis. SK2188 indirectly degrades MYCN, inhibits tumor cell proliferation, and provides insights into the study of MYCN-amplified neuroblastoma (Pink: AURKA ligand: MK-5108 ; Blue: Thalidomide (HY-14658) ; Black: Linker: Amino-PEG4-alcohol (HY-W008005) ).