1. Reproductive Immunology Group, Department of Pathology, The Medical School, University Walk, Bristol BS8 1TD, U.K.;2. Department of Obstetrics and Gynaecology, Bristol Maternity Hospital, Southwell Street, Bristol BS2 8EG, U.K.
Abstract:
A large number of cells in the first trimester human placenta have been shown to express leucocyte-common antigen by the use of a monoclonal antibody in an immunoperoxidase technique. The distribution of endometrial granulocytes in the decidua of early pregnancy indicates that a large proportion of these cells bear the leucocyte-common antigen and are thus bone-marrow derived.