计算溶液所需的质量、体积或浓度。
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Moligand™ 级 ,适用于对基线干扰要求严格的色谱和分析工作流程。
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在色谱分析、有机合成和交叉偶联反应领域已被 0 篇同行评审文献引用。
LGK 974是一种有效的特异性小分子Porcupine(PORCN)抑制剂。Porcupine(PORCN)是一种膜结合的O-酰基转移酶,介导Wnt家族蛋白的棕榈酰化。Wnt蛋白的分泌和生物学活性需要这一步骤,而Wnt蛋白在胚胎发育和癌症中起作用。LGK 974大大减少了Wnt的分泌,而没有降低其合成,也没有增加细胞毒性。LGK 974在小鼠中具有口服生物利用度,并在由乳腺肿瘤病毒驱动的Wnt1信号转导产生的小鼠乳腺肿瘤中诱导肿瘤消退。有趣的是,它还可以以对干细胞更新影响有限的剂量阻断其他Wnt相关肿瘤的致癌作用。
Information
LGK-974 LGK-974 (NVP-LGK974, WNT974) is a potent and specific PORCN inhibitor, and inhibits Wnt signaling with IC50 of 0.4 nM in TM3 cells. Phase 1.
In vitro
LGK974 effectively displaces [3H]-GNF-1331 with IC50 of 1 nM in the PORCN radioligand binding assay, and shows no major cytotoxicity in cells up to 20 µM. LGK974 shows comparable inhibitory activities against all tested Wnts with IC50 ranging from 0.05 to 2.4 nM, which is consistent with the genetic loss of PORCN phenotype. LGK974 specifically inhibits the growth of three RNF43-mutant cell lines, HPAF-II, PaTu 8988S, and Capan-2.
In vivo
In a murine MMTV-Wnt1 tumor model and a human head and neck squamous cell carcinoma model (HN30), LGK974 (3 mg/kg) inhibits Wnt signaling in vivo and induces tumor regression without significant body weight loss in the mice. LGK974 (5 mg/kg, p.o., BID) also inhibits tumor growth of RNF43-mutant pancreatic tumors (HPAF-II and Capan-2) in vivo.
Cell Data
cell lines:
Concentrations:~1 μM
Incubation Time:3 days
Powder Purity:≥99%
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