量化RTK信号的香农信息能力的癌症和药物诱导的变化
Paweł Nałęcz-Jawecki1, Lee Roth2, Frederic Grabowski1
1Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland.
bioRxiv : the preprint server for biology
|July 14, 2025
概括
癌症通过降低信号通路中的信息容量来破坏细胞通信. 抑制瘤基因改善了肺癌细胞的信息流动,但容量仍然低于健康细胞,揭示了疾病评估的新指标.
科学领域:
- 细胞信号传输和信息理论.
- 生物系统的定量分析.
背景情况:
- 细胞信号通路传输外部线索,以提供准确的细胞反应.
- 癌症可能会损害信号传输,但对信息能力的影响没有量化.
研究的目的:
- 量化和比较受体氨酸激酶 (RTK) 信号通路中的信息容量.
- 评估基因驱动癌症对细胞信息处理的影响.
- 用信息能力作为指标来评估有针对性的干预措施的有效性.
主要方法:
- 使用伪随机脉动光遗传刺激和活细胞成像.
- 应用信息理论来测量信息速率和通道容量.
- 在 silico 协议优化中使用,以估计最大信息速率.
主要成果:
- 肺癌细胞 (STE-1) 中RTK/ERK通路信息速率低 (<0.5比特/小时),在基因抑制后增加到3比特/小时.
- 信息传输仅在50-70%的癌细胞中发生.
- 瘤基因抑制增加了STE-1细胞RTK/ERK通路容量,达到6比特/小时,仍然低于健康的BEAS-2B细胞 (11比特/小时).
- 在BEAS-2B细胞中的RTK/尿路径显示其容量超过15比特/小时.
结论:
- 信息能力是疾病相关信号功能障碍的敏感指标.
- 有针对性的瘤基因抑制可以部分恢复信号通路的能力.
- 这种方法为评估癌症治疗干预措施提供了一种新方法.
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