通过密度依赖的选择在异质癌细胞系中的克隆干扰的数学建模
Thomas Veith1,2, Andrew Schultz1, Saeed Alahmari3
1Moffitt Cancer Center, Integrated Mathematical Oncology, USF Magnolia Drive, Tampa, FL 33612, USA.
Cells
|July 29, 2023
概括
癌症细胞系异质性影响药物反应. 研究人员将基因表达与生长率联系起来,揭示了细胞系内共存的型之间的表型差异.
科学领域:
- 基因组学就是基因组学.
- 癌症生物学 癌症生物学
- 细胞表型化 细胞表型化
背景情况:
- 在癌症细胞系中,积体和型异质性是常见的.
- 这种异质性可以导致细胞对药物或媒体等外部因素的反应变化.
- 了解型异质性的表型表现对于预测细胞行为至关重要.
研究的目的:
- 研究胃癌细胞系中型异质性的表型后果.
- 识别与生长速度和承载能力相关的转录生物标志物.
- 预测不同密度条件下的克隆组成如何变化.
主要方法:
- 重新分析了来自八个胃癌细胞系的单细胞RNA (scRNA) 和scDNA测序数据.
- 使用活细胞成像测量生长速度和接触抑制的量化.
- 优先考虑与生长和承载能力相关的转录基因生物标志物.
- 基于预测的表型差异的克隆组成动态的模拟.
主要成果:
- 在同一细胞系内的不同胆核型之间观察到预测的生长速度和承载能力的显著差异.
- 识别了转录基因生物标志物,并与表型变异联系起来.
- 模型预测了由实验密度影响的克隆组成的变化.
结论:
- 对型异质性的表型解释为细胞行为提供了洞察力.
- 密度依赖的选择可以影响细胞系组成的演变.
- 经过验证的模型可以指导实验设计来控制细胞系进化.
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