在癌细胞系中药物诱导的代谢变化的基于约束的建模
Xavier Benedicto1, Åsmund Flobak2,3,4, Miguel Ponce-de-Leon5
1Barcelona Supercomputing Center (BSC), Barcelona, Spain.
NPJ systems biology and applications
|October 6, 2025
概括
这项研究揭示了癌细胞如何改变新陈代谢以生存. 结合酶抑制剂会影响特定的代谢途径,为胃癌提供新的治疗策略,并突出药物协同作用机制.
科学领域:
- 在癌症中代谢重编程
- 癌细胞代谢和癌细胞治疗
背景情况:
- 癌细胞表现出改变的新陈代谢,以促进生长和生存.
- 代谢途径是瘤学中有前途的治疗点.
- 胃癌是一个重大的临床挑战.
研究的目的:
- 研究激酶抑制剂及其组合在胃癌细胞中的代谢作用.
- 确定针对癌症代谢的协同药物组合.
- 使用计算方法探索代谢途径活动.
主要方法:
- 利用基因组规模的代谢模型和AGS胃癌细胞系的转录基因分析.
- 应用了从差异表达 (TIDE) 算法推断出的任务和使用任务必不可少的基因的变体.
- 在各种药物治疗条件下分析了代谢通路活性变化.
主要成果:
- 观察到生物合成途径的广泛下调,特别是在氨基酸和核酸代谢中.
- 鉴定了由组合治疗引起的特定条件的代谢变化.
- 在PI3K抑制剂-MEK抑制剂 (PI3Ki-MEKi) 条件中发现了影响甲和聚胺生物合成的协同效应.
结论:
- 代谢变化为胃癌中药物协同作用的机制提供了洞察力.
- 确定了与代谢途径相关的潜在治疗漏洞.
- 开发了MTEApy,这是一个开源的Python包用于TIDE分析,以提高可重现性.
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