Multiscale estimation of cell kinetics.

Multiscale estimation of cell kinetics.
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细胞动力学的多尺度估计。

DOI:
10.1080/17486700903535922
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发表时间:
2010-09
影响因子:
--
通讯作者:
Luebeck EG
Luebeck EG
中科院分区:
工程技术4区
文献类型:
--
作者:
Jean LW;Suchorolski MT;Jeon J;Luebeck EG

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我们介绍了一种基于luria - delbr<e:1> ck波动模型的方法来估计无性繁殖群体的细胞动力学。特别是,这种方法可以估计净细胞增殖率、消光系数和初始(可存活的)种群大小。我们提出了一种基于空间划分的系统方法,该方法可以捕获单个克隆的数量和大小的局部波动。然而,分区会增加克隆的数量,从而引入测量误差,克隆的数量取决于时间和细胞迁移的程度。我们进行了各种硅实验来探索估计器的性质,并表明精度与观测时间之间存在直接关系。我们还探讨了测量误差和估计精度之间的权衡。通过探索细胞波动的不同尺度,从整个种群到单个克隆,我们表明这种方法对于推断肿瘤进展的重要参数是有用的。
We introduce a methodology based on the Luria-Delbrück fluctuation model for estimating the cell kinetics of clonally expanding populations. In particular, this approach allows estimation of the net cell proliferation rate, the extinction coefficient, and the initial (viable) population size. We present a systematic approach based on spatial partitioning which captures the local fluctuations of the number and sizes of individual clones. However, partitioning introduces measurement error by inflating the number of clones, which is dependent on time and the degree of cell migration. We perform various in silico experiments to explore the properties of the estimators and we show that there exists a direct relationship between precision and observation time. We also explore the trade-off between measurement error and estimation accuracy. By exploring different scales of cellular fluctuations, from the entire population down to those of individual clones, we show that this methodology is useful for inferring important parameters in neoplastic progression.
DOI: 10.1073/pnas.95.2.708
发表时间: 1998-01-20
影响因子: 11.1
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