<n0:ComplexDefinition xmlns:n0="http://ncicb.nci.nih.gov/xml/owl/EVS/ComplexProperties.xsd#"><n0:def-definition>An agent that either induces or inhibits the differentiation or maturation of cells, specifically neoplastic cells, resulting in decreases in tumor growth and metastasis. (NCI04)</n0:def-definition><n0:def-source>NCI</n0:def-source></n0:ComplexDefinition>