TY - JOUR T1 - Association between CAM 5.2 and anti-CD1a reactivity in lymph nodes and gastrointestinal tract epithelium. JF - Journal of Clinical Pathology JO - J Clin Pathol SP - 271 LP - 274 DO - 10.1136/jcp.42.3.271 VL - 42 IS - 3 AU - A S Jack AU - I Grigor AU - C J O'Brien AU - W McMeekin AU - F Lewis AU - A M McNicol Y1 - 1989/03/01 UR - http://jcp.bmj.com/content/42/3/271.abstract N2 - Immunocytochemical studies, using the antibodies CAM 5.2 and NA1/34 (CD1a), were performed on normal lymphoid tissue and malignant lymphomas. A population of dendritic cells in the paracortex of lymph nodes and in T cell lymphomas reacted with both antibodies. Colocalisation with antibodies was also found in gastrointestinal epithelium. Immune blotting shows that the likely basis of this reactivity is a 12 kilodalton peptide which is recognised by both antibodies. This is almost certainly the beta t peptide which has been described as the light chain of CD1a. ER -