| Description: |
UNC-2025 is a potent and orally bioavailable dual MER/FLT3 inhibitor with IC50 of 0.74 nM and 0.8 nM, respectively, about 20-fold selectivity over Axl and Tyro3. |
| Target: |
IC50: 0.74 nM (Mer); 0.8 nM (Flt3) |
| In Vivo: |
UNC2025 (intravenous injection or oral adminstration; 3 mg/kg) exhibits an excellent PK properties: low clearance (9.2 mL/min kg), longer half-life (3.8 h), and high oral exposure (100%), it shows Tmax, Cmax, and AUClast 0.50 hour, 1.6 μM, and 9.2 h μM, respectively.
UNC2025 (orally adminstration; 50 or 75 mg/kg; 34 and 70 days) mediates a statistically significant dose-dependent reduction in tumor burden relative to vehicle. mediates dose-dependent increases in median survival from 26 days after initiation of treatment in vehicle-treated mice, to 34 and 70 days in mice treated with 50 or 75 mg/kg UNC2025, respectively. |
| In Vitro: |
UNC2025 is against FLT3, MER, AXL, TRKA, TRKC, QIK, TYRO3, SLK, NuaK1, KIT and Met with IC50 values of 0.35 nM, 0.46 nM, 1.65 nM, 1.67 nM, 4.38 nM, 5.75 nM, 5.83 nM, 6.14 nM, 7.97 nM , 8.18 nM and 364 nM, respectively.
UNC2025 (0-60 nM; 1 hour) mediates potent inhibition of Mer phosphorylation with an IC50 of 2.7 nM in 697 B-ALL cells.
UNC2025 (0-60 nM; 1 hour) results in decreased phosphorylation of Flt3 with an IC50 of 14 nM in Flt3-ITD positive Molm-14 acute myeloid leukemia cells.
UNC2025 (3 nM-3 μM; 1 hour) decreases p-MEK, p-AXL, p-TYRO3 expression as a concentration manner in 32D Cells.
UNC2025 (14 nM–10 μM; 48 hours) inhibits MERTK signaling and colony-forming potential in a MERTK-expressing patient sample with a 20-fold difference in sensitivity of MERTK-expressing leukemia blasts relative to normal cord or marrow blood mononuclear cells.
UNC2025 (25-300 nM; 1 hour) mediates potent and dose-dependent decreases in MERTK phosphorylation/activation in both cell lines and inhibition of MERTK correlated with decreased phosphorylation of previously reported MERTK-dependent signaling components STAT6, AKT, and ERK1/2. |
| References: |
[1]. Zhang W, et al. UNC2025, a Potent and Orally Bioavailable MER/FLT3 Dual Inhibitor. J Med Chem. 2014 Aug 28;57(16):7031-41.
[2]. DeRyckere D, et al. UNC2025, a MERTK Small-Molecule Inhibitor, Is Therapeutically Effective Alone and in Combination with CL14377 in Leukemia Models.Clin Cancer Res. 2017 Mar 15;23(6):1481-1492. |
