cytoskeelin

Cytoskeleton is a network of protein filaments and tubules that provides structural support, facilitates movement, and helps maintain cell shape. It is composed of three main types of filaments: microtubules, microfilaments, and intermediate filaments. Microtubules are hollow, cylindrical structures made of tubulin dimers, which are essential for cell division, intracellular transport, and ciliary and flagellar movement. Microfilaments, also known as actin filaments, are composed of actin monomers and play crucial roles in cell motility, muscle contraction, and cell signaling. Intermediate filaments are made of various proteins, such as keratin, vimentin, and desmin, and provide mechanical strength and stability to cells. The cytoskeleton is dynamic and constantly remodeled by molecular motors and other proteins, allowing cells to respond to their environment and perform various functions. Dysregulation of the cytoskeleton has been linked to numerous diseases, including cancer, neurodegenerative disorders, and muscular dystrophies.