Fig. 5From: High uptake of 68Ga-PSMA and 18F-DCFPyL in the peritumoral area of rat gliomas due to activated astrocytesImmunofluorescence staining of U87 tumors. Nuclear staining (DAPI) is shown in blue, antibody staining in green, and tumor borders are outlined in white. Strong reactive astrocytosis (GFAP; a) is visible in the peritumoral region with few astrocytes at the tumor border. Specific staining of blood vessels (vWF; b) is detectable, which is similar within tumor tissue and in the peritumoral region. Few activated microglia (CD11b; c) can be observed in the peritumoral region and inside the tumor. PSMA staining using the antibody NBP1-45057 is positive in vessel-like structures in the tumor center (d) but not outside the tumorBack to article page