AZD1208 is a novel, orally bioavailable, highly selective PIM kinases inhibitor.
GDC-0339 is a Pim kinase inhibitor with IC50 of 43.6 nM for BaF3 PIM1.IC50 value: 43.6 nM (for BaF3 PIM1), 0.04 nM (Ki, for PIM1 LC-3K)Target: Pim
INCB053914 (INCB-053914) is a novel potent, and selective ATP-competitive, pan-PIM kinase inhibitor with IC50 of 0.24/30.0/0.12 nM for PIM1/2/3, respectively; INCB053914 is highly selective against a panel of more than 50 kinases (>475-fold selectivity) with exception of RSK2 (IC50=7.1 uM); inhibits cellular proliferation in a panel of cell lines derived from hematologic malignancies including AML, MM, DLBCL, MCL, and T-ALL with GI50 of <100 nM, inhibits proliferation in all MM cell lines with GI5050 of 13.2-230.0 nM; inhibits PIM kinase-mediated phosphorylation of BAD in MOLM-16 and KMS-12-BM cells with IC50 of 4 and 27 nM, also increases PIM2 expression in KG-1a (AML), Pfeiffer, and KMS12-PE cells; in vivo, INCB053914 inhibited Bcl-2-associated death promoter protein phosphorylation and dose-dependently inhibited tumor growth in acute myeloid leukemia and multiple myeloma xenografts. Solid Tumors Phase 2 Clinical
PIM447 is novel pan-PIM kinase inhibitor, including Moloney Murine Leukemia (PIM) 1, 2, and 3 Kinase.target: pan-PIM inhibitor [2] [3]In vitro: PIM447 is cytotoxic for myeloma cells due to cell cycle disruption and induction of apoptosis mediated by a decrease in phospho-Bad (Ser112) and c-Myc levels and the inhibition of mTORC1 pathway. PIM447 also inhibits in vitro osteoclast formation and resorption, downregulates key molecules involved in these processes and partially disrupts the F-actin ring, while increasing osteoblast activity and mineralization.[1]In vivo: PIM447 significantly reduces the tumor burden and preventes tumor-associated bone loss in a disseminated murine model of human myeloma.[1]
GSK-3β inhibitor 13 (compound 47) is an orally active and potent GSK-3β inhibitor with blood-brain permeability. GSK-3β inhibitor 13 inhibits GSK-3β and GSK-3α with IC50s of 0.73 nM and 0.35 nM, respectively. GSK-3β inhibitor 13 significantly decreases the phosphorylation of tau (IC50=58 nM), which leads the formation of the neurofibrillary tangles associated with Alzheimer's disease[1].
PIM1-IN-7 (compound 6c) is a potent PIM-1 inhibitor, with an IC50 of 0.67 μM. PIM1-IN-7 shows the high cytotoxicity activity against HCT-116 and MCF-7 cells, with IC50 values of 42.9 and 7.68 μM, respectively[1].
CX-6258 hydrochloride hydrate is a potent, orally efficacious Pim 1/2/3 kinase(IC50=5 nM/25 nM/16 nM) inhibitor with excellent biochemical potency and kinase selectivity.IC50 Value: 5 nM/25 nM/16 nM (Pim 1/2/3) [1]Target: pan-Pimin vitro: CX-6258 inhibited Flt-3 and Pim-3 (IC50=0.134 and 0.016 uM). At 0.5 uM of CX-6258, only Pim-1, Pim-2, Pim-3, and Flt-3 of the 107 kinases tested were inhibited by more than 80%, showing excellent selectivity. CX-6258 was also shown to be a reversible inhibitor of Pim-1 (Ki=0.005 uM). CX-6258 showed robust antiproliferative potencies against all cell lines tested derived from human solid tumors and hematological malignancies. In mechanistic cellular assays with MV-4-11 human AML cells, (13) caused dose-dependent inhibition of the phosphorylation of 2 pro-survival proteins, Bad and 4E-BP1, at the Pim kinase specific sites S112 and S65 and T37/46, respectively[1]. Pim-1 inhibition using the small molecule inhibitor CX-6258 (12 mM, 3 h) diminishes endogenous NKX3.1 steady state levels in 22RV1 and LNCaP cells. CX-6258 treatment (12 mM, 3 h) treatment diminished steady-state levels of ectopic NKX3.1 in PC3 cells. CX-6258 treatment resulted in a significant reduction in NKX3.1 half-life. While ectopically expressed NKX3.1 in control cells had a half-life of _90 min, Pim-1 inhibition reduced the half-life to _52 min [2].in vivo: CX-6258 showed dose-dependent efficacy in mice bearing MV-4-11 xenografts, with 45% and 75% TGI at 50 and 100 mg/kg/day, respectively. Treatment of mice bearing PC3 xenografts with CX-6258 p.o. 50 mg/kg was also well tolerated and produced 51% TGI.
HTH-01-091 is a potent and selective, cell-permeable, ATP-competitive MELK inhibitor with biochemical IC50 of 10.5 nM; displays no significant activity for PIK3CA, mTOR, GSK3A and CDK7 (IC50>600 nM); exhibits substantially improved kinome selectivity in comparison with OTSSP167; induces MELK degradation, but demonstrates poor antiproliferative effects in basal-like breast cancer cell lines.
(Z)-SMI-4a is a selective ATP-competitive Pim-1 kinase inhibitor with an IC50 of 21 nM for Pim-1 compared to an IC50 of 100 nM for Pim-2 and with little or no activity against a panel of 50 other kinases tested.IC50 value: 21 nM (Pim1); 100 nM (Pim2) [1]Target: Pim-1in vitro: Incubation of pre-T-LBL cells with (Z)-SMI-4a induced G1 phase cell-cycle arrest secondary to a dose-dependent induction of p27(Kip1), apoptosis through the mitochondrial pathway, and inhibition of the mammalian target of rapamycin C1 (mTORC1) pathway based on decreases in phospho-p70 S6K and phospho-4E-BP1, 2 substrates of this enzyme. In addition, treatment of these cells with (Z)-SMI-4a was found to induce phosphorylation of extracellular signal-related kinase1/2 (ERK1/2), and the combination of (Z)-SMI-4a and a mitogen-activated protein kinase kinase 1/2 (MEK1/2) inhibitor was highly synergistic in killing pre-T-LBL cells [1]. Ectopic expression of phosphomimetic mutants of eIF4B conferred resistance to apoptosis by the Pim kinase inhibitor (Z)-SMI-4a in Abl-transformed cells [2].in vivo: In immunodeficient mice carrying subcutaneous pre-T-LBL tumors, treatment twice daily with (Z)-SMI-4a caused a significant delay in the tumor growth without any change in the weight, blood counts, or chemistries [1].
CDK6/PIM1-IN-1 is a potent and balanced dual CDK6/PIM1 inhibitor with IC50 values of 39 and 88 nM, respectively. CDK6/PIM1-IN-1 inhibits CDK4 (IC50=3.6 nM). CDK6/PIM1-IN-1 significantly inhibits acute myeloid leukemia (AML) cell proliferation, arrest cell cycle at the G1 phase, and promote cell apoptosis. CDK6/PIM1-IN-1 exhibits potent anti-AML activity[1].
CK2/PIM1-IN-1 is an inhibitor of CK2 and PIM1, with IC50s of 3.787 μM and 4.327 μM for CK2 and PIM1, respectively. CK2/PIM1-IN-1 is developed for the research of proliferative disorders such as cancer, as well as other kinase-associated conditions including inflammation, pain, vascular disorders, pathogenic infections and certain immunological disorders[1].
HS56 (Pim-DAPK3 inhibitor HS56) is a potent, dual Pim/DAPK3 inhibitor with Ki of 72 nM (Pim-3) and 315 nM (DAPK3), shows micromolar potency toward Pim-1 and Pim-2 (Ki=1.5 and 17 uM); displays a high degree of selectivity for DAPKs and Pims against a panel of 468 kinases, with only two off-target interactions TYK2 and GAK; also displays no significant inhibition or activation of nicotinic, adrenergic, or muscarinic receptors at 10 uM; HS56 delayed force onset, decreased contractile force, and reduced LC20 phosphorylation in excised rat caudal arterial VSM tissues, lowers blood pressure in spontaneously hypertensive mice without affecting heart rate.
SEL24-B489 (SEL24) is a potent, dual PIM and FLT3-ITD inhibitor with Kd of 2/2/3 nM for PIM1/2/3, Kd of 160/16 nM for FLT3-WT/FLT3-ITD, respectively; exhibits significantly broader on-target activity in AML cell lines (MV-4-11 GI50=20 nM) and primary AML blasts than selective FLT3-ITD or PIM inhibitors, decreases viability of AML cells with FLT3-TKD mutations associated with resistance to selective FLT3-ITD inhibitors; inhibits the growth of a broad panel of AML cell lines in xenograft models. Blood Cancer Phase 2 Clinical
IBL-302 (AMU302) is an orally available dual-signaling inhibitor of PIM and PI3K/AKT/mTOR with activity against breast cancer and neuroblastoma. IBL-302 demonstrated in vivo efficacy in a nude mouse xenograft model, inhibiting trastuzumab (HY-P9907) resistance challenges. IBL-302 also enhances the effects of common cytotoxic chemotherapy drugs cisplatin (HY-17394), doxorubicin (HY-15142A), and etoposide (HY-13629)[1][2][3].