Localization of T cells, interferon-gamma and HLA-DR in eutopic and ectopic human endometrium

Gynecologic and Obstetric Investigation
C M Chiang, J A Hill

Abstract

Immunologic mechanisms are implicated in the pathogenesis of endometriosis and endometriosis-associated reproductive failure. The purpose of this study was to describe key immune response elements in eutopic and ectopic endometrium and to test the hypothesis that expression of CD3-positive T cells, the T-helper 1-type cytokine, IFN-gamma, and the antigen presentation marker, HLA-DR, vary throughout the menstrual cycle in eutopic endometrium and are more abundantly expressed in ectopic than in eutopic endometrium. Eutopic and ectopic endometrium obtained at hysterectomy from 7 women with endometriosis were compared with hysterectomy specimens from 7 women with adenomyosis and 10 women without endometriosis or endometrial pathology. Tissues were formalin-fixed, paraffin-embedded, sectioned and stained using the biotin-streptavidin-alkaline phosphatase technique and antibodies to human CD3, IFN-gamma, and HLA-DR. Eutopic endometrial samples were histologically divided into menses (n = 5), proliferative (n = 9), and secretory (n = 10) phases. Positive control tissues (spleen) and negative controls (no primary antibody) were used in each experiment. T cells, IFN-gamma and HLA-DR-positive cells were observed in eutopic endometrial sa...Continue Reading

Citations

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