The present invention provides for a method of using CDC2L1, CSNK1A1, GYK, NEK1,PLK1, PRKAR1A, PRKRA, TTBK2 or TTK hedgehog kinase antagonists to inhibit hedgehogsignaling, as well as treating and diagnosing disorders relating to hedgehogsignaling or overexpression of hedgehog, including cancer, cell proliferativedisorders, and angiogenesis, neurological disorders, as well as other conditionsaffected by hedgehog signaling such as hair growth, neural stem cell differentiation,chondrogenesis and osteogenesis, lung surfactant production, formation oflamellated bodies in lung cells.