Abstract
The composite cytoskeleton, comprising interacting networks of semiflexible actin filaments and rigid microtubules, restructures and generates forces using motor proteins such as myosin II to drive key processes including migration, cytokinesis, adhesion, and mechanosensing. While actin-microtubule interactions are key to the cytoskeleton's versatility and adaptability, an understanding of their interplay with actomyosin activity is still nascent. I will discuss our recent studies investigating the dynamics, structure and microrheological properties of in vitro actin-microtubule composites driven by myosin II minifilaments.
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