DS-1205b free base is a potent and selective inhibitor of AXL kinase, with an IC50 of 1.3 nM. DS-1205b free base also inhibits MER, MET, and TRKA, with IC50s of 63, 104, and 407 nM, respectively. DS-1205b free base can inhibit cell migration in vitro and tumor growth in vivo.
体外研究
DS-1205b (0.3-33 μM; 2-24 h) inhibits hGAS6-induced migration in NIH3T3-AXL cells (EC50=2.7 nM).
DS-1205b (1-10000 μM; 2-24 h) significantly inhibits the phosphorylation of AXL in NIH3T3-AXL cells. DS-1205b decreases NIH3T3 cell proliferation but not obviously inhibits growth (GI50>10,000 nM).
Western Blot Analysis
Cell Line:
NIH3T3-AXL cells
Concentration:
1, 10, 100, 1000, 10000 μM
Incubation Time:
2, 24 hours
Result:
Completely inhibited the phosphorylation of AXL at concentrations above 10 nM.
Slightly inhibited the phosphorylation of AKT serine/threonine kinase in a dose-dependent manner.
体内研究
DS-1205b (3.1-50 mg/kg; p.o. bid for 5 d) exhibits pAXL inhibition mediated antitumor effects in mice.
Animal Model:
Female NOD/Shi-scid IL-2Rγ KO Jic mice were implanted with NIH3T3-AXL tumor blocks
Dosage:
3.1, 6.3, 13, 25, 50 mg/kg
Administration:
P.o. twice daily for 5 days
Result:
Inhibited tumor growth by 39-94%.
Reduced the phosphorylation of both AXL and AKT in tumors.
分子式
C41H42FN5O7
分子量
735.80
CAS号
1855860-24-0
运输条件
Room temperature in continental US; may vary elsewhere.