Figure 1. The expression of ABCG2 in the primary astrocytes and GSCs.
(A, B) ABCG2 mRNA and protein levels in primary GSCs as detected by RT-PCR and Western blot, respectively. (C) Immunohistochemical analysis showing ABCG2 expression in GSC spheres. (D) Flow cytometry analysis of ABCG2 expression in GSC spheres.