Actin filaments are a key component of the cytoskeleton and play a critical role in cell structure, movement, and division. These filaments are made up of the protein actin and can be dynamic, rapidly assembling and disassembling in response to cellular signals. Research in this area often focuses on understanding the molecular mechanisms that regulate actin filament assembly and disassembly, as well as how actin filaments interact with other cellular components to carry out essential functions such as cell migration, organelle movement, and cytokinesis. Additionally, studies on actin filaments are important for understanding diseases such as cancer, which can be caused by dysregulation of actin dynamics.