詳細介紹
產(chǎn)品名:MRTX1133
CAS 號:2621928-55-8
分子式:C33H31F3N6O2
分子量:600.63
純 度:99%
備 注:僅供科研
描述MRTX1133是一種非共價、有效和選擇性KRAS G12D抑制劑。MRTX1133以最佳方式填充開關(guān)II口袋,并延伸三個取代基以與蛋白質(zhì)良好地相互作用,導(dǎo)致對KRASG12D的KD估計為0.2 pM。MRTX1133阻止SOS1催化的核苷酸交換和/或KRASG12D/GTP/RAF1復(fù)合物的形成,從而抑制突變體KRAS依賴性信號轉(zhuǎn)導(dǎo)。MRTX1133在細胞分析中具有皮摩爾結(jié)合親和力、一位數(shù)納摩爾活性,并且在含有KRASG12D突變的腫瘤模型中具有顯著的體內(nèi)療效[1]。
相關(guān)類別
研究領(lǐng)域 >> 癌癥
信號通路 >> G 蛋白偶聯(lián)受體/G 蛋白 >> 拉斯
靶點
KRas G12D
體外研究MRTX1133在IC50范圍為1-10nm的AGS細胞系中抑制ERK磷酸化(AsPC-1、Panc 04.03、Panc 02.03、SW1990、GP2D、Suit2、A427、SNU1033和HPAC細胞)。在2D活性測定中,MRTX1133對AGS細胞(KRAS G12D)的IC50為6 nM,同時顯示出對MKN1的500倍以上選擇性,MKN1是一種依賴KRAS生長和存活的細胞系,由于野生型KRAS的擴增[1]。
體內(nèi)研究MRTX1133在KRASG12D突變異種移植小鼠腫瘤模型中顯示有效性[1]。動物模型:6-8周齡,雌性,裸鼠(Panc 04.03模型)[1]劑量:3、10或30mg/kg給藥:腹腔注射;每天兩次,共28天結(jié)果:該模型中的抗腫瘤療效研究產(chǎn)生MRTX1133劑量依賴性抗腫瘤活性,在3 mg/kg BID(IP)下觀察到94%的生長抑制,腫瘤消退?62%及?在10 mg/kg BID(IP)和30 mg/kg BID(IP)下分別觀察到73%。
產(chǎn)品描述:
MRTX1133 is a potent and selective KRAS G12D inhibitor. MRTX1133 targets the KRAS G12D protein in both active and inactive states. In preclinical studies, MRTX1133 exhibited a long half-life, an ability to bind the KRAS G12D protein in both active and inactive states, and selective inhibition of KRAS G12D mutant cancer cells. In G12D mutant tumor models, MRTX1133 showed dose-dependent selective inhibition of the KRAS pathway and tumor regression.
體外研究: MRTX1133 inhibits ERK phosphorylation in the AGS cell line with an IC50 ranging 1-10 nM (AsPC-1, Panc 04.03, Panc 02.03, SW1990, GP2D, Suit2, A427, SNU1033, and HPAC cells). In a 2D viability assay, the IC50 of MRTX1133 is 6 nM against AGS cells (KRAS G12D), while demonstrating more than 500-fold selectivity against MKN1, a cell line which is dependent on KRAS for its growth and survival due to the amplification of wild-type KRAS.
體內(nèi)研究: MRTX1133 displays efficacious in a KRAS G12D mutant xenograft mouse tumor model.
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