Fig. 2

Macrophages and Treg cells in the ectopic and eutopic endometrium of endometriosis patients and the normal endometrium. A The expression of CD68, CD169, CSF-1R, and DC-SIGN in macrophages, and the expression of FOXP3 in Treg cells in all tissues of the normal endometrium, eutopic endometrium of endometriosis patients, and ectopic endometrium of endometriosis patients. Representative images are shown at 400 × magnification. B The comparison between the proportion of macrophages and Treg cells in tissues of the normal endometrium, eutopic endometrium of endometriosis patients, and ectopic endometrium of endometriosis patients. The data are presented as the means ± SDs. Statistical analyses were performed by one-way analysis of variance (eutopic = 17; ectopic = 17; normal = 11), and significant differences are indicated as *P ≤ 0.05 and ***P ≤ 0.001