ATP levels influence cell movement during the mound phase in Dictyostelium discoideum as revealed by ATP visualization and simulation

ATP 可视化和模拟显示 ATP 水平影响盘基网柄菌细胞丘期的细胞运动

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作者:Haruka Hiraoka, Jiewen Wang, Tadashi Nakano, Yasuhiro Hirano, Shinichi Yamazaki, Yasushi Hiraoka, Tokuko Haraguchi

Abstract

Cell migration plays an important role in multicellular organism development. The cellular slime mold Dictyostelium discoideum is a useful model organism for the study of cell migration during development. Although cellular ATP levels are known to determine cell fate during development, the underlying mechanism remains unclear. Here, we report that ATP-rich cells efficiently move to the central tip region of the mound against rotational movement during the mound phase. A simulation analysis based on an agent-based model reproduces the movement of ATP-rich cells observed in the experiments. These findings indicate that ATP-rich cells have the ability to move against the bulk flow of cells, suggesting a mechanism by which high ATP levels determine the cell fate of differentiation.

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