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Runx2/core binding factor alpha 1 (Cbfa1) and Osterix (Osx) are osteoblast-specific transcription factors essential for the development of a mature osteoblast phenotype and are thought to activate osteoblast marker genes in vivo to produce a bone-specific matrix. Dexamethasone (Dex) is known to be a potent stimulator of osteoblastic differentiation in vitro, however, the exact role is still unclear...