A. IHC staining for FGF11 in tissue specimens from 20 PCa patients. Compared to adjacent normal area (left panel), FGF11 expression was higher in the PCa area (right panel). (scale bar: 50 μm, the scale bar of upper left corner was 100 μm, *P<0.05). B. Serial paraffin sections were used to detect the distribution of CD4(+) T cells and expression of FGF11. (Upper panels, adjacent normal area; lower panels, PCa area. Left panels CD4(+) and right labels FGF11, scale bar: 50 μm. The scale bar of upper left corners: 100 μm).