CSNK2B and mantle cell lymphoma: To specifically assess the contribution of each CK2 subunit to MCL cell growth we generated Jeko-1 MCL cells stably transduced with lentiviral vectors, expressing a shRNA against CK2α or CK2β in an Isopropyl-b-D-1-thiogalattopiranoside (IPTG)-inducible manner.