Integrins are a type of protein found on the surface of cells that play a crucial role in cell adhesion and communication. They help cells attach to the surrounding extracellular matrix, which is a network of proteins and other molecules that provide structural support to tissues. By binding to specific ligands, integrins facilitate various cellular processes, including migration, proliferation, and differentiation. These proteins are essential for many biological functions, such as wound healing and immune responses. Integrins are also involved in the development of certain diseases, including cancer, where they can influence tumor growth and metastasis. Understanding integrins can help researchers develop targeted therapies for these conditions.