Fig. 6.

Immunocharacterization of the cell types expressing PDGF-αR. Double immunostaining with anti-PDGF-αR (A) and Rip (B) on P21 sagittal brain section. PDGF-αR-positive cells (arrowheads inA) are weakly stained with the Rip antibody (B). Often, there is not strict colocalization between PDGF-αR and Rip expression (arrow), suggesting that these single-labeled cells could be immature cells of the oligodendrocyte lineage. P21 sagittal brain section immunolabeled for PDGF-αR (C) and GFAP (D).Arrowheads in C indicate PDGF-αR-positive cells that do not express GFAP in D. P7 sagittal brain section through the cerebral cortex stained for PDGF-αR (E) and MAP2 (F). Neurons (arrowheads) stained with the anti-MAP2 antibody (E) express PDGF-αR (F). Magnification, 224×.