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Expression And Function Of Dlx Genes In The Osteoblast Lineage, Haitao Li, Inga Marijanovic, Mark S. Kronenberg, Ivana Erceg, Mary Louise Stover, Dimitrios Velonis, Mina Mina, William B. Upholt, Ivo Kalajzic, Alexander C. Lichtler

UCHC Articles - Research

Our laboratory and others have shown that overexpression of Dlx5 stimulates osteoblast differentiation. Dlx5^−/−/Dlx6^−/− mice have more severe craniofacial and limb defects than Dlx5^−/−, some of which are potentially due to defects in osteoblast maturation. We wished to investigate the degree to which other Dlx genes compensate for the lack of Dlx5, thus allowing normal development of the majority of skeletal elements in Dlx5^−/− mice. Dlx gene expression in cells from different stages of the osteoblast lineage isolated by FACS sorting showed that Dlx2, Dlx5 and Dlx6 are expressed most strongly in less mature …