Leica单克隆抗体CD1a Clone MTB1 7 mL BOND ready-to-use PA0235 P (HIER) Antigen Background CD1a is a protein of 43 to 49 kD expressed on dendritic cells and cortical thymocytes. CD1a antigen expression has been shown to be useful in differentiating Langerhans cells, powerful antigen presenting cells present in skin and epithelia, from interdigitating cells. Immunohistochemical studies for CD1a antigen have reported a reduction in epidermal Langerhans cells in graft versus host disease and the participation of CD1a antigen-positive dendritic cells in atherosclerotic lesion formation and asthmatic inflammation. Skin: immunohistochemical staining with BOND ready-to-use CD1a (MTB1) using BOND Polymer Refine Detection.