Diverse Cell Stimulation Kinetics Identify Predictive Signal Transduction Models.

Diverse Cell Stimulation Kinetics Identify Predictive Signal Transduction Models.
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多样的细胞刺激动力学可确定具有预测性的信号转导模型。

DOI:
10.1016/j.isci.2020.101565
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发表时间:
2020-10-23
期刊:
影响因子:
5.8
通讯作者:
Neuert G
Neuert G
中科院分区:
综合性期刊2区
文献类型:
--
作者:
Jashnsaz H;Fox ZR;Hughes JJ;Li G;Munsky B;Neuert G

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从计算角度理解细胞在不同环境、化学及基因扰动下产生信号转导反应的分子机制,是一个长期存在的挑战,这需要能够拟合并预测新生物学条件下定量反应的模型。要攻克这一挑战,不仅依赖于优良的模型和详尽的实验数据,还取决于两者的严格整合。我们提出了一个定量框架,利用多种不同的变化环境(以下简称“动力学刺激”)对通用信号网络进行扰动并建模,从而产生不同的通路激活动态。我们证明,利用多种不同的动力学刺激能更好地限制模型参数,并实现对信号动态的预测,而这是使用传统剂量反应或单个动力学刺激无法做到的。为展示我们的方法,我们运用实验确定的模型,预测在多种动力学刺激下正常、突变及药物处理条件中的信号动态,并量化哪些蛋白质和反应速率对哪些细胞外刺激最为敏感。 不同的动力学细胞刺激会产生不同的信号反应动态 与阶跃刺激相比,不同的动力学更好地限制模型参数 不同的动力学刺激改进对野生型和突变型通路反应的预测 与阶跃刺激相比,不同的动力学刺激能区分相互竞争的信号模型 生物信息学;复杂系统生物学;系统生物学
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