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Ref Type | Journal Article | ||||||||||||
PMID | (37940144) | ||||||||||||
Authors | Friese-Hamim M, Ortiz Ruiz MJ, Bogatyrova O, Keil M, Rohdich F, Blume B, Leuthner B, Czauderna F, Hahn D, Jabs J, Jaehrling F, Heinrich T, Kellner R, Chan K, Tong AHY, Wienke D, Moffat J, Blaukat A, Zenke FT | ||||||||||||
Title | Novel Methionine Aminopeptidase 2 Inhibitor M8891 Synergizes with VEGF Receptor Inhibitors to Inhibit Tumor Growth of Renal Cell Carcinoma Models. | ||||||||||||
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Abstract Text | N-terminal processing by methionine aminopeptidases (MetAP) is a crucial step in the maturation of proteins during protein biosynthesis. Small-molecule inhibitors of MetAP2 have antiangiogenic and antitumoral activity. Herein, we characterize the structurally novel MetAP2 inhibitor M8891. M8891 is a potent, selective, reversible small-molecule inhibitor blocking the growth of human endothelial cells and differentially inhibiting cancer cell growth. A CRISPR genome-wide screen identified the tumor suppressor p53 and MetAP1/MetAP2 as determinants of resistance and sensitivity to pharmacologic MetAP2 inhibition. A newly identified substrate of MetAP2, translation elongation factor 1-alpha-1 (EF1a-1), served as a pharmacodynamic biomarker to follow target inhibition in cell and mouse studies. Robust angiogenesis and tumor growth inhibition was observed with M8891 monotherapy. In combination with VEGF receptor inhibitors, tumor stasis and regression occurred in patient-derived xenograft renal cell carcinoma models, particularly those that were p53 wild-type, had Von Hippel-Landau gene (VHL) loss-of-function mutations, and a mid/high MetAP1/2 expression score. |
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Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
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TP53 wild-type VHL inact mut | renal cell carcinoma | sensitive | M8891 + Sunitinib | Preclinical - Pdx | Actionable | In a preclinical study, M8891 and Sutent (sunitinib) combination treatment resulted in improved tumor growth inhibition compared to monotherapies in patient-derived xenograft (PDX) models of TP53 wild-type renal cell carcinoma harboring VHL inactivating mutations (PMID: 37940144). | 37940144 |
TP53 del | lung cancer | resistant | M8891 | Preclinical - Cell culture | Actionable | In a preclinical study, knockout of TP53 conferred resistance to M8891 in a lung cancer cell line as demonstrated by loss of inhibition of colony formation in culture (PMID: 37940144). | 37940144 |
TP53 wild-type VHL inact mut | renal cell carcinoma | sensitive | Cabozantinib + M8891 | Preclinical - Pdx | Actionable | In a preclinical study, M8891 and Cometriq (Cabometyx, cabozantinib) combination treatment resulted in improved tumor growth inhibition compared to monotherapies in patient-derived xenograft (PDX) models of TP53 wild-type renal cell carcinoma harboring VHL inactivating mutations (PMID: 37940144). | 37940144 |
TP53 wild-type VHL inact mut | renal cell carcinoma | sensitive | Axitinib + M8891 | Preclinical - Pdx | Actionable | In a preclinical study, M8891 and Inlyta (axitinib) combination treatment resulted in improved tumor growth inhibition compared to monotherapies in patient-derived xenograft (PDX) models of TP53 wild-type renal cell carcinoma harboring VHL inactivating mutations (PMID: 37940144). | 37940144 |