. "Multidrug_Resistance_Modulator"^^ . "C2699"^^ . . "ECTA AgentSYNCI" . "Retired_Concept"^^ . . "Prodrugs that are released by a cells drug resistance enzyme to the active form, causing cell death with decreased toxicity.NCI" . "Enzyme Catalyzed Therapeutic Activation CompoundSYNCI" . "Enzyme Catalyzed Therapeutic Activation Agent"^^ . "Antiquated term."^^ . "Enzyme Catalyzed Therapeutic Activation Agent"^^ . "Chemical Viewed Functionally"^^ . "Enzyme Catalyzed Therapeutic Activation AgentPTNCI" .