在细胞可塑性的随机模型中,从相对比例推断绝对细胞数量
Yuman Wang1, Shuli Chen2, Zhaolian Lu3
1School of Mathematical Sciences, Xiamen University, Xiamen, 361005, PR China; National Institute for Data Science in Health and Medicine, Xiamen University, Xiamen, 361005, PR China.
Journal of theoretical biology
|April 25, 2025
概括
这项研究引入了一种新的数学方法,可以从相对细胞比例推断绝对细胞数量,从而改善生物过程量化. 这种方法提高了细胞群动态分析的可靠性,而不需要初始细胞计数.
科学领域:
- 数学生物学 数学生物学
- 细胞动力学细胞动力学
- 系统生物学 系统生物学
背景情况:
- 精确量化动态细胞群变化对于理解生物过程如增殖,修复和疾病至关重要.
- 相对细胞比例数据与直接绝对细胞数量测量相比,提供了更高的可复制性和可靠性.
- 现有的方法在精确测量绝对细胞数量方面存在局限性,这阻碍了全面分析.
研究的目的:
- 开发和验证用于从相对细胞比例推断绝对细胞数的数学映射.
- 通过使用更强大的数据,建立一种用于预测细胞群体大小动态的新方法.
- 利用随机细胞动力学来更深入地了解生物质相互作用.
主要方法:
- 从静态细胞可塑性模型推导两个使用动量方程的数学映射.
- 利用细胞比例数据中的差异信息来推断种群大小.
- 从多个角度评估稳健性,并将应用范围扩展到各种生物机制.
主要成果:
- 成功建立了两个不同的细胞比例和种群大小之间的数学映射.
- 证明一个映射有效地推断了人口规模,而不需要初始人口计数.
- 在各种生物环境中验证了开发方法的稳定性和广泛适用性.
结论:
- 开发的数学映射提供了一种强大的新方法,通过从相对比例推断绝对细胞数量来量化细胞群动态.
- 在没有初始计数的情况下,通过结合方差来预测细胞种群大小的能力,显著地推进了该领域.
- 这些发现为细胞可塑性和生物质相互作用提供了宝贵的见解,克服了直接细胞计数方法的局限性.
相关概念视频
Cells Coordinate Growth and Proliferation
4.4K
Cell size is a significant factor impacting cellular design, function, and fitness. There exists some internal coordination by which cells double their masses before division, thus, achieving homeostasis. Coordination between cell growth and proliferation depends on the checkpoints in between cell cycle phases. Loss of coordination or failure in the checkpoint mechanism can drive the cell to uncontrolled growth and loss of cellular function. Like dividing cells that coordinate cellular growth,...
4.4K
Mechanistic Models: Compartment Models in Individual and Population Analysis
14
Mechanistic models are utilized in individual analysis using single-source data, but imperfections arise due to data collection errors, preventing perfect prediction of observed data. The mathematical equation involves known values (Xi), observed concentrations (Ci), measurement errors (εi), model parameters (ϕj), and the related function (ƒi) for i number of values. Different least-squares metrics quantify differences between predicted and observed values. The ordinary least...
14
Mechanistic Models: Compartment Models in Algorithms for Numerical Problem Solving
28
Mechanistic models play a crucial role in algorithms for numerical problem-solving, particularly in nonlinear mixed effects modeling (NMEM). These models aim to minimize specific objective functions by evaluating various parameter estimates, leading to the development of systematic algorithms. In some cases, linearization techniques approximate the model using linear equations.
In individual population analyses, different algorithms are employed, such as Cauchy's method, which uses a...
In individual population analyses, different algorithms are employed, such as Cauchy's method, which uses a...
28


