Identification of gene regulation models from single-cell data.
Identification of gene regulation models from single-cell data.
复制标题
从单细胞数据识别基因调控模型。
DOI:
10.1088/1478-3975/aabc31
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发表时间:
2018
期刊:
影响因子:
2
通讯作者:
Munsky,Brian
中科院分区:
文献类型:
--
作者:
Weber,Lisa;Raymond,William;Munsky,Brian
In quantitative analyses of biological processes, one may use many different scales of models (eg spatial or non-spatial, deterministic or stochastic, time-varying or at steady-state) or many different approaches to match models to experimental data (eg model fitting or parameter uncertainty/sloppiness quantification with different experiment designs). These different analyses can lead to surprisingly different results, even when applied to the same data and the same model. We use a simplified gene regulation model to illustrate many of these concerns, especially for ODE analyses of deterministic processes, chemical master equation and finite state projection analyses of heterogeneous processes, and stochastic simulations. For each analysis, we employ M atlab and P ython software to consider a time-dependent input signal (eg a kinase nuclear translocation) and several model hypotheses, along with simulated single-cell data. We illustrate different approaches (eg deterministic and stochastic) to identify the mechanisms and parameters of the same model from the same simulated data. For each approach, we explore how uncertainty in parameter space varies with respect to the chosen analysis approach or specific experiment design. We conclude with a discussion of how our simulated results relate to the integration of experimental and computational investigations to explore signal-activated gene expression models in yeast (Neuert et al 2013 Science 339 584–7) and human cells (Senecal et al 2014 Cell Rep. 8 75–83) 5.