pf03394197 maleate

Potent Smo antagonist (IC50 = 5 nM). Attenuates the leukemia-initiation potential of AML cells in a serial transplantation mouse model. Also eliminates self-propagation capacity of AML cells. Munchhof et al (2011) Discovery of PF-04449913, a potent and orally bioavailable inhibitor of smoothened. ACS Med.Chem.Lett. 3 106 PMID:24900436 |Fukushima et al (2016) Small-molecule Hedgehog inhibitor attenuates the leukemia-initiation potential of acute myeloid leukemia cells. Cancer Sci. 107 1422 PMID:27461445 |Giordani et al (2016) The human Smoothened inhibitor PF-04449913 induces exit from quiescence and loss of multipotent Drosophila hematopoietic progenitor cells. Oncotarget 7 55313 PMID:27486815

Oclacitinib maleate (PF-03394197 maleate) is a novel inhibitor of JAK family members, with IC50 values ranging from 10 to 99 nM, and JAK1-dependent cytokines, with IC50 ranging from 36 to 249 nM, while not inhibiting a panel of 38 non-JAK kinases.