RNA-seq of Runx2 cKO primary chondrocytes.

Purpose: To demonstrate Runx2's association with organizing the extracellular matrix in primary chondrocytes. Method: RNA samples were collected from primary chondrocytes of 5-day-old Col2a1-CreERT2;Runx2fl/fl and Runx2fl/fl mice, cultured with or without IL-1beta. Results: Thirty-three genes cultured without IL-1beta and 45 genes with IL-1beta were up- or down-regulated by more than 2-fold in the Runx2 knockout in primary chondrocytes. Conclusions: Genes including collagen fibers were down-regulated in Runx2 cKO primary chondrocytes. Primary chondrocytes mRNA profiles of 5-day old Cntl and Runx2 cKO mice.