遗传性细胞状态塑造了癌细胞中药物持续性相关性和种群动态
Anton Iyer1, Adrian Alva1, Adrián E Granada2
1Simons Centre for the Study of Living Machines, National Centre for Biological Sciences, Bangalore, India.
PLoS computational biology
|September 19, 2025
概括
耐药性持久体 (DTPs) 从先前存在的细胞状态中出现,而不仅仅是药物后的动态. 这些遗传状态决定了癌症治疗的耐药性,独立于细胞分裂或死亡率.
科学领域:
- 癌症生物学 癌症生物学
- 细胞动力学细胞动力学
- 定量生物学 定量生物学
背景情况:
- 耐药性持续性药物 (DTPs) 在癌症治疗耐药性方面至关重要.
- 据了解,DTPs的出现,扩散和人口动态仍然不太清楚.
- 了解单细胞动力学和种群层面的行为是解读DTP动态的关键.
研究的目的:
- 通过整合单细胞和群体测量来定量描述药物持久性.
- 为了研究单细胞动力学和在基因毒性压力下的人口衰减率之间的关系.
- 阐明先前存在的细胞状态与药物后动态在DTP命运决定中的作用.
主要方法:
- 利用了来自两个癌细胞系的时隔显微镜数据.
- 综合单细胞和群体测量用于定量分析.
- 开发并使用了一种包含细胞状态依赖命运选择的随机模型.
主要成果:
- 观察到单细胞分裂和死亡率的轻微变化,尽管西斯的度增加.
- 发现人口衰减率显著增加,这表明独立于测量出生/死亡率的动态.
- 证明了先前存在的,遗传的细胞状态在很大程度上决定了药物度调节的药物后生存命运.
结论:
- 通过DTPs介导的癌症治疗耐药性受到先前存在的细胞状态的显著影响,而不仅仅是药物后事件.
- 细胞状态依赖的命运选择,存在于祖先和遗传,是DTP出现的关键驱动因素.
- 该研究为量化癌症持续性中细胞命运的药物前和药物后贡献提供了一个框架.
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