Fig. 4. Immunofluorescent staining of MAP2 in wild-type P19 cells and Evi1-expressing P19 cells (D2). a, undifferentiated P19 stem cells. b, Evi1 transformant clone (D2). c, 4 days after RA treatment of wild-type P19. d, 4 days after RA treatment of Evi1 transformant clone (D2).