Id2 expression alters oligodendrocyte differentiation. A, Olig2 and
O4immunofluorescence following 7 days of serum-induced differentiation of NSC
(v) or NSC (Id2). Olig2 image scale bars, 100 µm; O4 image scale bars,
200 µm. Asterisks indicate the location of cells shown at higher
magnification in the inset. B, flow cytometric analysis of NSC (v) and NSC (Id2)
stained with anti-Olig2 antibody conjugated to Alexa-488 fluorophore. Gated
cells (red boxes) represent Olig2 (+)-expressing cells following 7 days of
differentiation. C, Olig2 and O4immunofluorescence in NSC(v) and NSC
(Id2−/−) 7 days after differentiation. Olig2
image scale bars, 100 µm; O4image scale bars, 200 µm. D, Olig2
immunofluorescence in NSC (v), NSCId2−/− and
NSC(Id2−/−)*Id2 7 days after differentiation.
Scale bars, 100 µm. Nuclei are counterstained with Hoechst dye
(blue).