Figure 1. Expression of PGC-1α and ERRα in normal endometrium and endometrial cancer tissue. Expression of PGC-1α (A) and ERRα (B) in normal endometrium and different clinical stage endometrial cancer. (C) HE staining and immunohistochemical staining of PGC-1α, ERRα in normal endometrium (Case 1), superficial myometrial invasion EC (Case 2) and deep myometrial invasion EC (Case 3).