Fig. 5.

Histopathological presentation of endometrial cancer. a A representative case of low GLP-1R expression (Allred score 2). Hematoxylin and eosin staining, original magnification X200 (a) and X400 (b), and immunohistochemical staining of GLP-1R, original magnification X200 (c) and X400 (d), are shown. (e-h) A representative case of high GLP-1R expression (Allred score 8). Hematoxylin and eosin staining, original magnification X200 (e) and X400 (f), and immunohistochemical staining of GLP-1R, original magnification X200 (g) and X400 (h), are shown. b Kaplan–Meier survival curves for patients with endometrial cancer according to the degree of GLP-1R expression. The higher expression of GLP-1R was significantly correlated with better progression-free survival (right panel) (* p < 0.05; log-rank test). OS: overall survival, PFS: progression-free survival