Figure 4.
Evaluation of neurotrophic factors following treatment with ApoE isoforms. Human primary astrocytes were grown in vitro and treated for 24 h with 100 µM cholesterol (control) with or without recombinant ApoE2/3/4 (20 nM). Following treatment, astrocyte supernatant was collected, concentrated 10-fold, and Western blot was used to assess the expression of secreted BDNF. Expression was evaluated for both the (A) proBDNF and (B) mature BDNF isoforms. N = 3, ** p < 0.01 vs. Control, *** p < 0.001 vs. Control, ### p < 0.001 vs. ApoE3, ^ p < 0.05 vs. ApoE2, ^^^ p < 0.001 vs. ApoE2.