Intermediate filaments are a type of protein structure found in the cells of many organisms. They provide mechanical support and help maintain the shape of the cell. Unlike other cytoskeletal elements, such as microtubules and actin filaments, intermediate filaments are more stable and resistant to stretching. They play a crucial role in anchoring organelles and connecting cells to each other.
These filaments are made up of various proteins, including keratins, vimentin, and neurofilaments. Each type of intermediate filament is specific to certain cell types, contributing to the overall strength and resilience of tissues. By forming a supportive network, intermediate filaments help cells withstand physical stress and maintain their integrity.