Fig. 4

OPC abundance in lesions 1 week after lysolecithin microinjection. Larger numbers of PDGFRα (Pα, green)/Olig2-positive (blue) OPCs (arrows) are seen in lesions in control mice (a, d, g; Cont-1W) than in lesions in OPC-NG2ko (b, e, h; O-cKO-1W) or My-NG2ko mice (c, f, i; M-cKO-1W). Scale bar is 30 μm