As the most rigid cytoskeletal filaments, microtubules bear compressive forces in living cells, balancing the tensile forces within the cytoskeleton to maintain the cell shape.

• 细胞的力学性质很大程度上由细胞骨架决定，细胞骨架是由微管、中间丝和肌动蛋白丝这三种主要的蛋白丝构成的自组织网状结构。