MOAP1 and neoplasm: Furthermore, we have reconstituted Moap-1 into Moap-1−/− splenocytes and can observe reconstitution of cell death sensitivity upon intrinsic and extrinsic stimulation of Moap-1−/− splenocytes.5 This strongly suggests a role for MOAP-1 in several modes of cell death and the mechanism of how it may control growth and behave as a tumor suppressor.