Ilorasertib hydrochloride (ABT-348 hydrochloride) is an ATP-competitive multitargeted kinase inhibitor, which inhibits Aurora C, Aurora B, and Aurora A (IC50s: 1 nM, 7 nM, 120 nM). It also suppresses RET tyrosine kinase, PDGFRβ, and Flt1 (IC50s: 7 nM, 3 nM, and 32 nM).
AZD 1152 is an orally bioavailable prodrug of AZD 1152-HQPA, a selective inhibitor of Aurora kinase B (IC50= 0.36 nM).1AZD 1152 is converted to AZD 1152-HQPA in plasma. Inhibition of Aurora B results in disruption of spindle checkpoint functions and chromosome alignment, resulting in inhibition of cytokinesis followed by apoptosis.2,3AZD 1152 inhibits tumor xenograft growthin vivo.4,5 1.Mortlock, A.A., Foote, K.M., Heron, N.M., et al.Discovery, synthesis, and in vivo activity of a new class of pyrazoloquinazolines as selective inhibitors of aurora B kinaseJ. Med. Chem.50(9)2213-2224(2007) 2.Popescu, R., Heiss, E.H., Ferk, F., et al.Ikarugamycin induces DNA damage, intracellular calcium increase, p38 MAP kinase activation and apoptosis in HL-60 human promyelocytic leukemia cellsMutation Research709-71060-66(2011) 3.Moore, A.S., Blagg, J., Linardopoulos, S., et al.Aurora kinase inhibitors: Novel small molecules with promising activity in acute myeloid and Philadelphia-positive leukemiasLeukemia24(4)671-678(2010) 4.Wilkinson, R.W., Odedra, R., Heaton, S.P., et al.AZD1152, a selective inhibitor of Aurora B kinase, inhibits human tumor xenograft growth by inducing apoptosisClin. Cancer. Res13(12)3682-3688(2007) 5.Yang, J., Ikezoe, T., Nishioka, C., et al.AZD1152, a novel and selective aurora B kinase inhibitor, induces growth arrest, apoptosis, and sensitization for tubulin depolymerizing agent or topoisomerase II inhibitor in human acute leukemia cells in vitro and in vivoBlood110(6)2034-2040(2007)
CD532 hydrochloride is a potent inhibitor of Aurora A kinase, having an IC50 of 45 nM. It not only blocks the activity of Aurora A kinase but also facilitates the degradation of the protein MYCN. Furthermore, CD532 hydrochloride interacts directly with AURKA, inducing a significant conformational change. Its utility in cancer research has been demonstrated [1][2].
GSK2646264 (Compound 44) is a highly effective and specific inhibitor of spleen tyrosine kinase (SYK) with a pIC50 of 7.1. In addition to targeting SYK, GSK2646264 also inhibits several other kinases, including LCK, LRRK2, GSK3β, JAK2, VEGFR2, Aurora B, and Aurora A, with pIC50 values of 5.4, 5.4, 5.3, 5, 4.5, <4.6 and <4.3, respectively. Notably, GSK2646264 demonstrates skin penetrability, reaching both the epidermis and dermis [1].