YK-4-279|YK-4279|DC Chemicals

Cas No.:	1037184-44-3
Chemical Name:	4,7-dichloro-1,3-dihydro-3-hydroxy-3-[2-(4-methoxyphenyl)-2-oxoethyl]-2H-indole-2-one
Synonyms:	YK-4279
SMILES:	N1C2=C(C(Cl)=CC=C2Cl)C(O)(CC(C2=CC=C(OC)C=C2)=O)C1=O
Formula:	C₁₇H₁₃Cl₂NO₄
M.Wt:	366.2
Purity:	>98%
Sotrage:	2 years -20°C Powder, 2 weeks 4°C in DMSO, 6 months -80°C in DMSO

Description:

YK 4-279 is an inhibitor of RNA Helicase A (RHA) binding to the oncogenic transciption factor EWS-FLI1. YK-4-279 inhibits Ewing's sarcoma family tumor (ESFT) cell growth; YK-4-279 induces apoptosis.RNA Helicase AES-FLI1 is an oncogenic fusion protein found in Ewing’s sarcoma, a family of undifferentiated tumors that occur throughout the body. The binding of RNA helicase A (RHA) to ES-FLI1 promotes its oncogenic function. YK-4-279 is an inhibitor of protein-protein interactions between ES-FLI1 and RHA. At 10 μM, YK-4-279 blocks RHA binding to ES-FLI1 and induces apoptosis of a panel of Ewing’s sarcoma tumor cell lines with IC50 values ranging from 0.5-2 μM. At 1.5 mg per dose, YK-4-279 reduces the growth of Ewing’s sarcoma orthotopic xenografts in mice after treatment with the inhibitor for two weeks.

References:

[1]. Barber-Rotenberg JS, et al. Single enantiomer of YK-4-279 demonstrates specificity in targeting the oncogene EWS-FLI1. Oncotarget. 2012 Feb;3(2):172-82. [2]. Rahim S, et al. YK-4-279 inhibits ERG and ETV1 mediated prostate cancer cell invasion. PLoS One. 2011 Apr 29;6(4):e19343. [3]. Erkizan HV, et al. A small molecule blocking oncogenic protein EWS-FLI1 interaction with RNA helicase A inhibits growth of Ewing's sarcoma. Nat Med. 2009 Jul;15(7):750-6.

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