Name | 2H-Indol-2-one, 1,3-dihydro-3-[(4-hydroxyphenyl)methylene]-5,6-dimethoxy |
---|---|
Synonyms |
(3Z)-3-(4-Hydroxybenzylidene)-5,6-dimethoxy-1,3-dihydro-2H-indol-2-one
1,3-dihydro-5,6-dimethoxy-3-((4-hydroxyphenyl)methylene)-2H-indol-2-one 2H-Indol-2-one, 1,3-dihydro-3-[(4-hydroxyphenyl)methylene]-5,6-dimethoxy-, (3Z)- RPI-1 |
Description | RPI-1 is a specific, orally available 2-indolinone Ret tyrosine kinase inhibitor. RPI-1 inhibits proliferation, Ret tyrosine phosphorylation, Ret protein expression, and the activation of PLCgamma, ERKs and AKT in human medullary thyroid carcinoma TT cells. Antitumor activity[1]. |
---|---|
Related Catalog | |
In Vitro | TPC-1 cells are sensitive to the growth inhibitory effect of RPI-1 with an IC50 of 5.1 μM, following 72 hours of treatment. RPI-1 (7.5-60 µM) inhibits Ret/Ptc1 autophosphorylation in TPC-1 cells. RPI-1 inhibitory effects in the TPC-1 cell culture conditions lead to inhibition of pathways involving JNK2 and AKT[1]. The RPI-1 IC50 value for cell proliferation is 3.6 µM in NIH3T3 cells expressing the Ret mutant compared with 16 µM in non-transfected NIH3T3 cells, and that for colony formation in soft agar was 2.4 µM and 26 µM in RET mutant-transfected and H-RAS-transfected NIH3T3 cells, respectively. In NIH3T3 cells expressing the Ret mutant, Ret protein and tyrosine phosphorylation were undetectable after 24 hours of RPI-1 treatment. In TT cells, RPI-1 inhibits proliferation, Ret tyrosine phosphorylation, Ret protein expression, and the activation of PLCgamma, ERKs and AKT[2]. |
In Vivo | RPI-1 (50, 100 mg/kg; p.o.; twice a day for 10 days) inhibits the tumor growth of TT xenografts by 81%[2]. Animal Model: 8- to 11-week-old female athymic nude CD-1 mice (bearing TT cells)[2] Dosage: 50, 100 mg/kg Administration: P.o.; twice a day for 10 days Result: A dose-dependent effect on tumor growth was observed, with a dose of 2*50 mg/kg/day resulting in less tumor weight inhibition than the 2*100mg/kg/day dose after 10 days of treatment. |
References |
Density | 1.3±0.1 g/cm3 |
---|---|
Boiling Point | 533.6±50.0 °C at 760 mmHg |
Molecular Formula | C17H15NO4 |
Molecular Weight | 297.305 |
Flash Point | 276.5±30.1 °C |
Exact Mass | 297.100098 |
PSA | 67.79000 |
LogP | 3.08 |
Vapour Pressure | 0.0±1.5 mmHg at 25°C |
Index of Refraction | 1.660 |