MAFB and neoplasm: Scramble shRNA (SHC002), MAFB shRNA678, and MAFB shRNA678 plus wild-type MAFB-infected SW1116 cell lines, along with two SW1116 cell lines infected with retrovirus expressing wild-type MAFB or MAFBK32R, were subcutaneously inoculated into nude mice to induce tumor xenografts.