Fig. 2. Localisation of EndoCL in human tissues. Localisation of hCL was assessed by (A-F) immunohistochemistry on paraffin sections from TMAs using primary LN-1436 and secondary alkaline phosphatase-conjugated antibodies, and detected with Vector Red (red colour). Cell nuclei were counterstained with haematoxylin (blue colour). Note the predominant CL expression in microvascular endothelium in (A) endometrium, (B) myometrium, (C) adenocarcinoma, (D) corpus luteum, and (E and F) cervical stroma (arrows); and in (F) cervical epithelium (arrowheads). (For hCL expression in other tissues, see supplementary material, Figs S3 and S4.)