生物活性 | |||
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描述 | Receptor tyrosine kinases (RTKs) are a group of cell surface receptors essential for cell survival, proliferation, differentiation, and metabolism. Discoidin domain receptors (DDR) 1 and 2 are the members of the RTKs family that can be activated by collagens. VU6015929 is a potent inhibitor of both DDR1 and DDR2 with IC50 values of 4.67±1.6 and 7.39±11.6nM, respectively. In mesangial cells expressing Hu-DDR1b, VU6015929 showed no cytotoxicity at 10M after 24h incubation. Treatment with VU6015929 at 4-100nM dose-dependently blocked collagen I-induced DDR1 auto-phosphorylation in serum-starved HEK293 cells expressing full-length human DDR1 cDNA with an IC50 value of 0.7078±0.3533nM. Also in serum-starved DDR1-null mesangial cells reconstituted with human full length DDR1 cDNA, incubation with VU6015929 for 24h significantly inhibited collagen IV production in a DDR1-dependent manner as compared to the vehicle-treated group. In a rat study (0.5 mg/kg, i.v.; 3 mg/kg, p.o.), VU6015929 showed an in vivo clearance of 34.2mL/min/kg, an ~3h half-life, a volume of distribution at 4.3L/kg at steady state, and 12.5% oral bioavailability[1]. |
实验方案 | |||
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1mg | 5mg | 10mg | |
1 mM 5 mM 10 mM |
2.06mL 0.41mL 0.21mL |
10.30mL 2.06mL 1.03mL |
20.60mL 4.12mL 2.06mL |
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