RPI-1

Modify Date: 2024-01-31 13:24:30

RPI-1 Structure
RPI-1 structure
Common Name RPI-1
CAS Number 269730-03-2 Molecular Weight 297.305
Density 1.3±0.1 g/cm3 Boiling Point 533.6±50.0 °C at 760 mmHg
Molecular Formula C17H15NO4 Melting Point N/A
MSDS USA Flash Point 276.5±30.1 °C
Symbol GHS09
GHS09
Signal Word Warning

 Use of RPI-1


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].

 Names

Name 2H-​Indol-​2-​one, 1,​3-​dihydro-​3-​[(4-​hydroxyphenyl)​methylene]​-​5,​6-​dimethoxy
Synonym More Synonyms

 RPI-1 Biological Activity

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

[1]. Lanzi C, et al. Inactivation of Ret/Ptc1 oncoprotein and inhibition of papillary thyroid carcinoma cell proliferation by indolinone RPI-1. Cell Mol Life Sci. 2003;60(7):1449-1459.

[2]. Cuccuru G, et al. Cellular effects and antitumor activity of RET inhibitor RPI-1 on MEN2A-associated medullary thyroid carcinoma. J Natl Cancer Inst. 2004;96(13):1006-1014.

 Chemical & Physical Properties

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

 Safety Information

Symbol GHS09
GHS09
Signal Word Warning
Hazard Statements H400
Precautionary Statements P273
Personal Protective Equipment dust mask type N95 (US);Eyeshields;Gloves
RIDADR UN 3077 9 / PGIII

 Articles2

More Articles
Proteomic Identification of DNA-PK Involvement within the RET Signaling Pathway.

PLoS ONE 10 , e0127943, (2015)

Constitutive activation of the Rearranged during Transfection (RET) proto-oncogene leads to the development of MEN2A medullary thyroid cancer (MTC). The relatively clear genotype/phenotype relationshi...

Glial cell line-derived neurotrophic factor induces cell proliferation in the mouse urogenital sinus.

Mol. Endocrinol. 29(2) , 289-306, (2015)

Glial cell line-derived neurotrophic factor (GDNF) is a TGFβ family member, and GDNF signals through a glycosyl-phosphatidylinositol-linked cell surface receptor (GFRα1) and RET receptor tyrosine kina...

 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
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Price: ¥660/10 mM * 1 mL in DMSO

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