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RMC-7977

CAS No.: 2765082-12-8

RMC-7977 is a highly selective inhibitor of the active (GTP-bound) forms of KRAS, HRAS, and NRAS with anticancer activit
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Description RMC-7977 is a highly selective inhibitor of the active (GTP-bound) forms of KRAS, HRAS, and NRAS with anticancer activity for the study of solid tumors with KRAS G12C mutations.
In vitro 方法:50 nM RMC-7977处理U2OS 细胞,观察KRAS-CYPA 复合物的形成和 KRAS(G12V)-CRAF 相互作用的破坏,使用活细胞纳米生物发光共振能量转移(BRET)动力学测定。结果果:RMC-7977 能以同样快的速度(信号半衰期 (t1/2) < 5 分钟)诱导 KRAS 和 CYPA 结合,并使 CRAF RBD 从 KRAS 上解离。[1]方法:用RMC-7977(0.1,1,10,100,100nM)处理的 RAS 依赖性(KRAS、NRAS 或 EGFR 突变)癌细胞,比较RMC-7977在RAS通路中携带各种激活突变的癌细胞中的活性,特别是 KRAS、NRAS、EGFR 或 BRAF 的致癌变体。结果:在低纳摩尔范围内表现出对下游信号传导和增殖的浓度依赖性抑制。[1]
In vivo 方法:携带NCI-H441 CDX肿瘤的小鼠用RMC-7977(10mg kg,口服,每日一次,28天),观察体内肿瘤的变化情况。结果:RMC-7977 足以在8小时时最大限度地抑制肿瘤DUSP6水平(91%),每天重复施用RMC-7977,在NCI-H441模型中,耐受性良好,治疗28天后平均肿瘤消退率为83%。[1]方法:通过 qRT-PCR 检测人类 CDX PDAC 模型(Capan-1;KRASG12V)肿瘤组织中 RAS/MAPK 通路转录靶标人 DUSP6 的表达,评估肿瘤细胞对单次剂量为 10、25 或 50 mg/kg 的RMC-7977(口服,4, 8, 24, 48h)治疗的反应。结果:DUSP6 水平在给药后 24-48 小时内受到有效抑制,通路抑制与肿瘤中 RMC-7977 的浓度密切相关(Capan-1 CDX肿瘤中EC50 = 142 nM)。[2]
molecular weight 865.09
Molecular formula C47H60N8O6S
CAS 2765082-12-8
Storage store at low temperature | Powder: -20°C for 3 years | In solvent: -80°C for 1 year
Solubility DMSO: 100 mg/mL (115.59 mM), Sonication is recommended.
References 1. Singh M, et al. Concurrent inhibition of oncogenic and wild-type RAS-GTP for cancer therapy. Research Square; 2023. 2. Wasko UN, et al. Tumor-selective effects of active RAS inhibition in pancreatic ductal adenocarcinoma. bioRxiv [Preprint]. 2023 Dec 4:2023.12.03.569791.