Figure 4.

Immunostaining for CCL16 and CCL21. Representative tissues immunostained for CCL16 (A, C, E) and CCL21 (B, D, F). CCL16 and CCL21 staining, in control eutopic endometrial tissue (A, B), eutopic tissue (C, D), and matched ectopic lesions (E, F) from the same endometriosis patient. Leukocytes stained for CCL21 are shown in the insert in (F). (G, H) Endometrial sections with non-immune IgG substituted for the primary antibodies, as negative controls. Scale bars represent 200 μm.