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a Flow cytometric analysis for detecting αVβ3 integrin expression on human hepatocellular carcinoma HuH-7 cells in culture. HEK293(β1) and HEK293(β3) were used as the negative and positive controls, respectively. b Immunohistochemical staining of human αVβ3 integrin in HuH-7, HEK293(β1), and HEK293(β3) tumor xenografts. c HE staining and CD31 immunohistochemical staining of tumor vasculature in HuH-7 tumor xenografts
