CD103, also known as integrin alpha E (ITGAE), is an integrin protein that in humans is encoded by the ITGAE gene. It binds integrin beta 7 to form the complete heterodimeric molecular αEβ7 that binds to an extracellular matrix component and cellular counter receptor. They mediate cell adhesion, migration and signaling and are important for T lymphocyte localization. CD103 is expressed on intraepithelial lymphocytes in mucosal areas, including lung and GI tract. In malignancies, CD103 is expressed on more than 95% of intraepithelial CD8+ cells and 40% of mucosa associated T cells, whereas less than 2% of resting blood lymphocytes are CD103-postive. In several malignant conditions, such as T-cell lymphomas and hairy cell leukemia, the cells express CD103.
|Tissue Type/Cancer Type||
0.5 mL – Manual – Concentrate, 1 mL – Manual – Concentrate, 6 mL – Manual – RTU, 50 Tests – Automation – Xmatrx, 100 Tests – Automation – i6000, 160 Tests – Automation – Xmatrx, 5 slides – Xmatrx, 5 slides – Manual