Borthwick G M, Sunderland C A, Holmes R C, Black M M, Stirrat G M
J Reprod Immunol. 1984 Dec;6(6):393-6. doi: 10.1016/0165-0378(84)90048-2.
The villous stroma and fetal endothelium in chorionic villi adjacent to maternal decidua in a placenta of a woman suffering from pemphigoid gestationis were found to have abnormal expression of HLA-DR antigen. This aberrant DR expression may be a reflection of an immune attack on the placenta.