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电穿孔细胞在电融合前后的电参数波动的理论分析。

Theoretical analysis for the fluctuation in the electric parameters of the electroporated cells before and during the electrofusion.

机构信息

Biomedical Engineering Department, Helwan University, Cairo, Egypt.

Center of Nanoelectronics and Devices (CND), Zewail City of Science and Technology, Giza, Egypt.

出版信息

Med Biol Eng Comput. 2022 Dec;60(12):3585-3600. doi: 10.1007/s11517-022-02683-0. Epub 2022 Oct 19.

Abstract

An electric pulse with a sufficient amplitude can lead to electroporation of intracellular organelles. Also, the electric field can lead to electrofusion of the neighboring cells. In this paper, a finite element mathematical model was used to simulate the distribution, radius, and density of the pores. We simulated a mathematical model of the two neighbor cells to analyze the fluctuation in the electroporation parameters before the electrofusion under the ultra-shorted electric field pulse (i.e., impulse signal) for each cell separately and after the electrofusion under the ultra-shorted pulse. The analysis of the temporal and spatial distribution can lead to improving the mathematical models that are used to analyze both electroporation and electrofusion. The study combines the advantages of the nanosecond pulse to avoid the effect of the cell size on the electrofusion and the large-pore radius at the contact point between the cells.

摘要

足够幅度的电脉冲会导致细胞内细胞器的电穿孔。此外,电场会导致相邻细胞的电融合。在本文中,使用有限元数学模型来模拟孔的分布、半径和密度。我们模拟了两个相邻细胞的数学模型,分别分析了超短电脉冲(即脉冲信号)作用下每个细胞在电融合前后的电穿孔参数波动。时空分布的分析可以改进用于分析电穿孔和电融合的数学模型。该研究结合了纳秒脉冲的优势,避免了细胞大小对电融合的影响以及细胞接触点处大孔径的影响。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7b9a/9646573/97ea9eee0166/11517_2022_2683_Fig1_HTML.jpg

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