Pyrazoloquinazoline tricyclic system as novel scaffold to design new kinase CK2 inhibitors.

Casein kinase 2 (CK2) is a ubiquitous, essential, and highly pleiotropic protein kinase whose abnormally high constitutive activity is suspected to underlie its pathogenic potential in neoplasia and infective diseases. Using a combined virtual screening approach, we have identified the pyrazoloquinazoline tricyclic system as a novel scaffold to design new kinase CK2 inhibitors.