NCIt definition : An orally bioavailable cyclin dependent kinase (CDK) inhibitor with potential antineoplastic
activity. Roniciclib selectively binds to and inhibits the activity of CDK1/Cyclin
B, CDK2/Cyclin E, CDK4/Cyclin D1, and CDK9/Cyclin T1, serine/threonine kinases that
play key roles in the regulation of the cell cycle progression and cellular proliferation.
Inhibition of these kinases leads to cell cycle arrest during the G1/S transition,
thereby leading to an induction of apoptosis, and inhibition of tumor cell proliferation.
CDKs are often dysregulated in cancerous cells.;