Fig. 2

Histopathological Staining and Functional Expression of OE Endometrial Epithelial Organoids. (A) Hematoxylin and eosin (HE) staining of EUT-O and ECT-O (scale: 20 μm). (B) HE staining of in situ endometrial and ectopic endometrial tissues from patients with ovarian-type endometriosis (scale: 20 μm). (C) Periodic acid-Schiff (PAS) staining of EUT-O and ECT-O (scale: 20 μm). (D) Ki67 staining of EUT-O and ECT-O (scale: 20 μm). (E) Transmission electron microscopy images of EUT-O, ECT-O, and their original endometrial tissues (scale: 2.0 μm).Marked in the figure: Nucleus (N), mitochondria (M), lysosome (Ly), autophagy lysosome (ASS), rough endoplasmic reticulum (RER), lipid droplet (LD).