Fig. 3From: Sulfasalazine modifies metabolic profiles and enhances cisplatin chemosensitivity on cholangiocarcinoma cells in in vitro and in vivo modelsCancer stem cell makers are reduced after treatment in the in vivo model. a Immunohistochemical staining of CD44v9. b The graph indicates the grading score of CD44v9 expression as the mean±standard deviation of 5 nude mice in each group.c Co-localization of CD44v9 and CK-19 with immunofluorescence staining. d The bar graphs indicate the fluorescence intensity of CD44v9 staining and the ratio of CD44v9 and CK-19Back to article page