Integrin αE also known as Integrin alpha E, CD103, ITGAE plays a crucial role in the immune system by mediating the adhesion of T cells to epithelial cells, particularly in the gut. This interaction is vital for maintaining the integrity of the epithelial barrier and facilitating immune responses in mucosal tissues. Integrin alpha E is primarily located on the surface of activated T cells and is essential for their migration to sites of inflammation. By binding to E-cadherin on epithelial cells, Integrin alpha E helps to regulate the retention of T cells in tissues, which is important for effective immune surveillance and response. The ability of Integrin alpha E to interact with E-cadherin not only underscores its role in cell adhesion but also highlights its significance in the context of autoimmune diseases and inflammatory conditions, where dysregulation of T cell localization can lead to pathological outcomes.