Fig. 10From: Nitrative and oxidative DNA damage in infection-related carcinogenesis in relation to cancer stem cellsColocalization of stem cell markers and DNA damage. Double-immunofluorescence staining of stem/progenitor cell markers (CD133 and OV6) and DNA lesions (8-oxodG and 8-nitroguanine) in cholangiocarcinoma tissues. White arrows indicate co-localization of DNA damage marker and stemness marker in cancer cells. Original magnification is × 400; Scale bar = 25 μmBack to article page