Figure 7.
Distribution of YKL-40 and GFAP in the occipital subventricular zone from a 21st wpc human fetus (crown-rump length: 200 mm). Sections were stained with antibodies against YKL-40 (green) and glial fibrillary acidic protein (GFAP, red), counterstained with DAPI (blue) and examined in the confocal microscope throughout the z-axis. (A) DAPI. (B) YKL-40-immunopositive small rounded cells (YC). (C) GFAP-immunopositive radial glial fibers (RGF). In (D), note the co-localization between the GFAP-positive RGF and YKL-40. Several GFAP-positive YCs are seen with a strong cytoplasmic YKL-40 reactivity. Scale bar: 10 μm.