title: Demonstration and characterization of HLA-DR positive cells in the stroma of human endometrium.
abstract: The proportion of stromal cells expressing DR antigens of the HLA system or reacting with an anti-macrophage antibody was studied by immunohistochemical methods in human proliferative, secretory and post-menopausal endometria. DR+ cells showed a rounded morphology with short expansions and represented 13-25% of the stromal cells in the proliferative and 16-43% in the secretory endometrium. The cells reacting with the anti-macrophage antibody were similar to DR+ cells, but their number was between 1/2 and 1/10 of DR+ cells. In the post-menopausal endometria no DR+ cells or elements reacting with anti-macrophage antibody were observed. These results suggest that a significant proportion of endometrial stromal cells expressing type II histocompatibility antigens do not belong to the monocyte-phagocyte system and that their number is under hormonal regulation.
authors: Pathology Department, School of Medicine, La Plata National University, Argentina.
authors: G
authors: G
authors: Laguens
authors: J M
authors: JM
authors: Goñi
authors: M
authors: M
authors: Laguens
authors: J M
authors: JM
authors: Goñi
authors: R
authors: R
authors: Laguens
mesh_terms: D000911:Antibodies, Monoclonal; D043182:Carboxylesterase; D002265:Carboxylic Ester Hydrolases / Q000378:metabolism; D004717:Endometrium / Q000166:cytology / Q000201:enzymology / Q000276:immunology*; D005260:Female; D006684:HLA-DR Antigens / Q000378:metabolism*; D006801:Humans; D008264:Macrophages / Q000276:immunology
chemical_list: D000911:Antibodies, Monoclonal; D006684:HLA-DR Antigens; D002265:Carboxylic Ester Hydrolases; D043182:Carboxylesterase