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|Ref Type||Journal Article|
|Authors||Glaser KB, Li J, Marcotte PA, Magoc TJ, Guo J, Reuter DR, Tapang P, Wei RQ, Pease LJ, Bui MH, Chen Z, Frey RR, Johnson EF, Osterling DJ, Olson AM, Bouska JJ, Luo Y, Curtin ML, Donawho CK, Michaelides MR, Tse C, Davidsen SK, Albert DH|
|Title||Preclinical characterization of ABT-348, a kinase inhibitor targeting the aurora, vascular endothelial growth factor receptor/platelet-derived growth factor receptor, and Src kinase families.|
|Journal||The Journal of pharmacology and experimental therapeutics|
|Abstract Text||ABT-348 [1-(4-(4-amino-7-(1-(2-hydroxyethyl)-1H-pyrazol-4-yl)thieno[3,2-c]pyridin-3-yl)phenyl)-3-(3-fluorophenyl)urea] is a novel ATP-competitive multitargeted kinase inhibitor with nanomolar potency (IC(50)) for inhibiting binding and cellular autophosphorylation of Aurora B (7 and 13 nM), C (1 and 13 nM), and A (120 and 189 nM). Cellular activity against Aurora B is reflected by inhibition of phosphorylation of histone H3, induction of polyploidy, and inhibition of proliferation of a variety of leukemia, lymphoma, and solid tumor cell lines (IC(50) = 0.3-21 nM). In vivo inhibition of Aurora B was confirmed in an engrafted leukemia model by observing a decrease in phosphorylation of histone H3 that persisted in a dose-dependent manner for 8 h and correlated with plasma concentration of ABT-348. Evaluation of ABT-348 across a panel of 128 kinases revealed additional potent binding activity (K(i) < 30 nM) against vascular endothelial growth factor receptor (VEGFR)/platelet-derived growth factor receptor (PDGFR) families and the Src family of cytoplasmic tyrosine kinases. VEGFR/PDGFR binding activity correlated with inhibition of autophosphorylation in cells and inhibition of vascular endothelial growth factor (VEGF)-stimulated endothelial cell proliferation (IC(50) ≤ 0.3 nM). Evidence of on-target activity in vivo was provided by the potency for blocking VEGF-mediated vascular permeability and inducing plasma placental growth factor. Activity against the Src kinase family was evident in antiproliferative activity against BCR-ABL chronic myeloid leukemia cells and cells expressing the gleevec-resistant BCR-ABL T315I mutation. On the basis of its unique spectrum of activity, ABT-348 was evaluated and found effective in representative solid tumor [HT1080 and pancreatic carcinoma (MiaPaCa), tumor stasis] and hematological malignancy (RS4;11, regression) xenografts. These results provide the rationale for clinical assessment of ABT-348 as a therapeutic agent in the treatment of cancer.|
|Molecular Profile||Treatment Approach|
|Gene Name||Source||Synonyms||Protein Domains||Gene Description||Gene Role|
|Drug Name||Trade Name||Synonyms||Drug Classes||Drug Description|
|ABT-348||ilorasertib||AURK Inhibitor (Pan) 11 PDGFR Inhibitor (Pan) 27 VEGFR Inhibitor (Pan) 32||Ilorasertib (ABT-348) is an ATP-competitive multitargeted kinase inhibitor with activity towards Aurora kinases, and VEGFR, and PDGFR kinase families (PMID: 22935731).|
|Variant||Impact||Protein Effect||Variant Description||Associated with drug Resistance|
|Molecular Profile||Indication/Tumor Type||Response Type||Therapy Name||Approval Status||Evidence Type||Efficacy Evidence||References|
|Unknown unknown||multiple myeloma||not applicable||ABT-348||Preclinical - Cell line xenograft||Actionable||In a preclinical study, Ilorasertib (ABT-348) displayed efficacy in multiple myeloma cell line xenograft models (PMID: 22935731).||22935731|
|Unknown unknown||pancreatic carcinoma||not applicable||ABT-348||Preclinical - Cell line xenograft||Actionable||In a preclinical study, treatment with Ilorasertib (ABT-348) inhibited tumor growth and led to regression of advanced tumors in cell line xenograft models of pancreatic carcinoma (PMID: 22935731).||22935731|
|Unknown unknown||acute lymphoblastic leukemia||not applicable||ABT-348||Preclinical - Cell line xenograft||Actionable||In a preclinical study, Ilorasertib (ABT-348) displayed efficacy in acute lymphoblastic leukemia cell line xenograft models (PMID: 22935731).||22935731|
|Unknown unknown||fibrosarcoma||not applicable||ABT-348||Preclinical - Cell line xenograft||Actionable||In a preclinical study, Ilorasertib (ABT-348) inhibited tumor growth in cell line xenograft models of fibrosarcoma (PMID: 22935731).||22935731|
|Unknown unknown||colorectal cancer||not applicable||ABT-348||Preclinical - Cell culture||Actionable||In a preclinical study, ABT-348 reduced proliferation of colorectal cancer cell lines in culture (PMID: 22935731).||22935731|