Fig. 7From: Very small embryonic-like stem cells (VSELs) in adult mouse uterine perimetrium and myometriumImmuno-localization of PCNA after treatment with estradiol (a-b). At higher magnification, cells expressing PCNA were visualized in the perimetrium. Only few cells in the myometrium were positive for PCNA. Spindle shaped cells in the myometrium (a) were negative for PCNA expression. Scale bar represents 20 μmBack to article page