Fig. 5

PCNA and OCT-4 expression in bilaterally ovariectomized mouse endometrial section. a, b. PCNA expression was minimal in the epithelial cells lining the lumen and the glands. Stromal cells did not express PCNA. Please note that few cells show relatively intense expression compared to others (arrow). c, d. OCT-4 expression was cytoplasmic in nature however; few spherical cells (arrow) expressed nuclear OCT-4A. Thus the OCT-4 antibody used in the present study helps to clearly delineate the two alternatively spliced isoforms of OCT-4 including nuclear OCT-4A and cytoplasmic OCT-4B. Scale bar 20 μm