在平面单层中细胞分布的拓平衡
Daria S Roshal1, Kirill K Fedorenko1, Marianne Martin2
1Faculty of Physics, Southern Federal University, Zorge 5, Rostov-on-Don 344090, Russia.
概括
正常的上皮组织表现出拓不变. 这项研究揭示了特殊的接触微域,这些微域在固态中不存在,但在癌症中存在,影响细胞邻居分布和组织动态.
科学领域:
- 细胞生物学 细胞生物学
- 生物物理学的生物物理.
- 数学生物学 数学生物学
背景情况:
- 植物和元动物中的正常增殖表皮表现出拓不变性.
- 基于细胞邻居数量 (DCN) 的细胞分布在这些表皮上通常是相似的.
研究的目的:
- 调查DCN计算中的差异,这些差异来自细胞间边界位置与Voronoi图形.
- 通过识别和利用"拓带电"的微域,在DCN中引入拓平衡的新方程.
主要方法:
- 分析来自细胞间边界和沃罗诺伊模块的DCN.
- 根据特殊的微域,推导出新的拓平衡方程.
- 该理论应用于人类宫上皮细胞 (HCerEpiC) 微图.
主要成果:
- 确定了四个或更多细胞间边界汇聚的特殊微域,称为"拓带电".
- 开发了一个新的方程,准确地描述DCN的拓平衡.
- 改进了HCerEpiC微摄影的图像处理,并证实了表皮单层的拓不变性.
- 证明特殊的接触微域在固态顶点模型中不存在,但在液态癌症状态中出现.
结论:
- 特殊的接触微域对于理解表皮层拓和动态至关重要.
- 这些微域的存在区分了正常表皮和癌症状态,可能会影响组织形态发生.
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