Figure 3. PirB knockout promotes NSC differentiation ability. (A–B) PirB knockout promotes the differentiation of NSCs into neurons. Tuj1 and MAP2 marks immature postmitotic neurons and mature neurons, respectively. PirB knockout promotes the differentiation of NSCs into (C) astrocytes and (D) oligodendrocytes. Means ± SEM, *P < 0.05; **P < 0.01; ***P < 0.001 by the t-test.