TG4-155 is a potent, brain-permeant and selective EP2 receptor antagonist with a Ki of 9.9 nM. TG4-155 shows low nanomolar antagonist activity against only EP2 and DP1. TG4-155 has an EP2 Schild KB of 2.4 nM and displays 550-4750-fold selectivity for EP2 over EP1, EP3, EP4 and IP, but only 14-fold selectivity against the DP1 receptor.
性状
Solid
体外研究(In Vitro)
TG4-155 inhibits the serotonin 5-HT2B receptor with IC50=2.6 μM and hERG (human Ether-à-go-go-Related Gene) with IC50=12 μM.
PGE2 (0.1-10 μM) stimulation significantly enhances human prostate cancer cell line PC3 cell growth in a concentration-dependent manner with a maximal response being obtained at approximately 1 μM. This PGE2-induced cancer cell proliferation is significantly suppressed by TG4-155 (0.01-1μM ; 48 hours) in a concentration-dependent manner.
Medlife has not independently confirmed the accuracy of these methods. They are for reference only.
Cell Viability Assay
Cell Line:
PC3 cells
Concentration:
48 hours
Incubation Time:
0.01, 0.1, and 1 μM
Result:
Significantly suppressed PGE2-induced cancer cell proliferation in a concentration-dependent manner.
体内研究(In Vivo)
Administration of TG4-155 (5 mg/kg, i.p.; at 1 and 12 h) significantly reduces status epilepticus (SE)-induced neurodegeneration scores in C57BL/6 mice.
TG4-155 (3 mg/kg; i.p.) displays a bioavailability of 61% (i.p. route compared with i.v.), a plasma half-life (t1/2) of 0.6 h, and a brain/plasma ratio of 0.3 in C57BL/6 mice.
Medlife has not independently confirmed the accuracy of these methods. They are for reference only.
Animal Model:
C57BL/6 mice (8-12 wk old)
Dosage:
5 mg/kg
Administration:
I.p.; at 1 and 12 h
Result:
Administration significantly reduced SE-induced neurodegeneration scores by 91% in hippocampal subregions CA1, by 80% in CA3, and by 63% in hilus.
Animal Model:
C57BL/6 mice
Dosage:
3 mg/kg
Administration:
I.p.
Result:
Displayed a bioavailability of 61% (i.p. route compared with i.v.), t1/2 of 0.6 h, and a brain/plasma ratio of 0.3.