KLF2 and osteosarcoma: More recently, Taniguchi et al., 2012 demonstrated that EZH2 directly targets the Kruppel-like factor 2 (KLF2), which is a tumor suppressor, and interrupts its functions in cell cycle arrest and apoptosis, leading to tumorigenesis in the osteosarcoma mouse model (Taniguchi et al., 2012).