T6496针对由T790M或C797S突变体介导的EGFR:机器学习,虚拟查和生物活性评估研究
Linxiao Wang1, Dang Fan1, Wei Ruan1
1Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, China.
Journal of biomolecular structure & dynamics
|January 4, 2024
概括
确定了新型化合物来对抗耐药性肺癌. 化合物T6496有效向表皮生长因子受体 (EGFR) 突变,表现出强大的抗癌活性,并诱导癌细胞的亡.
科学领域:
- 药用化学 医学化学
- 在瘤学瘤学.
- 计算机化药物发现技术
背景情况:
- 对表皮生长因子受体 (EGFR) 抑制剂的获得性耐药性是非小细胞肺癌 (NSCLC) 治疗中的一个重大挑战.
- 像T790M和C797S这样的抗药性突变的出现需要开发新的治疗药物.
- 针对特定的EGFR突变对于克服获得的耐药性至关重要.
研究的目的:
- 发现能够抑制耐药EGFR变体 (EGFRT790M/L858R和EGFRT790M/C797S/L858R) 的新型小分子.
- 为了确定潜在的抗癌药物,可以克服EGFR介导的耐药性肺癌.
- 评估新发现的化合物的临床前疗效和作用机制.
主要方法:
- 利用ROC引导的机器学习和220,000多种化合物的虚拟选来识别潜在的候选药物.
- 采用集群分析和绑定模型分析来选择有前途的化合物.
- 进行了酶试验,细胞试验 (H1975细胞系),亡试验 (AO和JC-1染色),以及ROS实验,以评估化合物的活性和机制.
主要成果:
- 确定了六种潜在的化合物,对EGFR的敏感性比c-Met更高.
- 化合物T6496显示出对EGFRT790M/L858R (IC50 = 3.30μM) 和EGFRT790M/C797S/L858R (IC50 = 8.72μM) 的显著抑制.
- 根据时间和度,T6496对H1975细胞 (IC50=2.7μM) 和诱导的亡具有强烈的抗癌活性,具有有利的毒性概况.
结论:
- 化合物T6496是一种有前途的新药,可以克服由T790M或C797S突变引起的EGFR抑制剂的获得性耐药性.
- T6496显示出强大的抗瘤作用,并诱导细胞亡,这表明它有可能成为耐药肺癌的治疗候选者.
- 进一步优化T6496的结构是必要的临床开发.
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