Figure 6.
Confocal image of a double immunolabeled section of the occipital subventricular zone from a 21st wpc human fetus (crown-rump length: 200 mm) stained with antibodies against YKL-40 (green) and von Willebrand Factor (vWF; red) and nuclear counterstained with DAPI (blue). The YKL-40-immunopositive pericytes (PC) in the subventricular zone show a circumventing discontinuity of the vWF-immunopositive endothelial cells (EC) of the microvessels. YKL-40 immunoreactivity is found in small rounded cells (YKL-40-positice cells, YC) with a strong cytoplasmic staining surrounding the nucleus. These cells have no contact with microvessels. Scale bar: 20 μm.