Fig4. Expression of PD1, PDL1 and related cytokines in CC tissues(Immunohistochemistry). CD4+( ), CD25+( ), Foxp3( ), CD8+( ), PD1( ), PD-L1( ), IL2( ), IL6( ), IL10( ), TNF-β( ) and INF-γ( ) were detected by immunohistochemical staining of the cervical cancer tissue. And pick out some representative tissue images to show. Images( - ) are from the same specimen, while (Ⅶ-Ⅺ ) are from different representative patients.