CEBPB and neoplasm: Contrary to C/EBPα that is purely antiproliferative as a tumor suppressor in several cell types, C/EBPβ regulates expression of various genes involved in cell differentiation, proliferation, survival, immune function and female reproduction, as well as tumor invasiveness and progression, through a variety of mechanisms [6].Over the past several years, C/EBPβ has been shown to control differentiation of hematopoietic and adipogenic cells [7], [8].