Microtubule

Microtubules are essential components of the cytoskeleton in eukaryotic cells, playing a critical role in maintaining cell shape, enabling intracellular transport, and facilitating cell division. Composed primarily of α and β tubulin protein subunits, microtubules form dynamic structures that can rapidly grow and shrink, allowing them to perform their functions efficiently. During cell division, microtubules form the mitotic spindle, which segregates chromosomes into daughter cells, ensuring accurate genetic replication. Additionally, microtubules serve as tracks for the movement of organelles and vesicles within the cell, guided by motor proteins like kinesin and dynein. Their dynamic nature and versatility make microtubules vital for various cellular processes and a key target in cancer therapy.