Background:

CVT-313 is a potent inhibitor of cyclin-dependent kinase 2 (CDK2) with IC50 value of 0.5 μM [1].
CDK2 is a serine/threonine kinase that is essential for the G1-S phase during cell division. CDK2 is an important target for prevention of aberrant cell proliferation [1].
In MRC-5 cells, CVT-313 inhibited Rb hyperphosphorylation in a time-dependant way and the cell cycle was arrested at the G1/S phase. Also, CVT-313 inhibited the growth of mouse, rat and human cells with IC50 values from 1.25 to 20 mM [1]. In human diffuse large B-cell lymphoma (DLBCL) cells, CVT-313 reduced CDK2-mediated phosphorylation of the retinoblastoma gene product (Rb) on T821. Also, CVT-313 reduced the anti-apoptotic factor Myeloid cell leukemia-1 (Mcl-1) and induced apoptosis [2].
In the injured rat carotid artery model of restenosis, CVT-313 (1.25 mg/kg) reduced neointima formation by 80%. Moreover, Treatment animals with CVT-313, the neointimal areas were inhibited by at least 70%. These suggested that CDK2 was an antiproliferative target and CVT-313 is an ideal candidate for the treatment of proliferative diseases [1].
参考文献:
[1]. Brooks EE, Gray NS, Joly A, et al. CVT-313, a specific and potent inhibitor of CDK2 that prevents neointimal proliferation. J Biol Chem, 1997, 272(46): 29207-29211.
[2]. Faber AC, Chiles TC. Inhibition of cyclin-dependent kinase-2 induces apoptosis in human diffuse large B-cell lymphomas. Cell Cycle, 2007, 6(23): 2982-2989.