Association of B7-H4, PD-L1, and tumor infiltrating lymphocytes with outcomes in breast cancer

Detection of B7-H4 protein expression by using immunofluorescence (QIF) in breast cancer. a Representative fluorescence image showing staining for B7-H4 (red channel), cytokeratin (green channel), and nuclei (4′,6-diamidino-2-phenylindole; DAPI) (blue channel). b, c Magnified areas of a. b Target protein, B7-H4 (red channel), is highly expressed within stroma. c Target protein, B7-H4 (red channel), and is highly expressed within tumor. Bar？=？100？μ