Fig. 2
Myc inhibition suppresses HC regeneration in zebrafish neuromasts.
(A) HCS1-labeled HC number was significantly reduced after treatment by c-MYC inhibitor 10058F4 that was dose-dependent. ***p<0.001. n = 20 larvae for each group. (B) A significant reduction in HC number was observed after the treatment by Int-H1-S6A, F8A, a peptide inhibitor of c-MYC, which was dose-dependent. ***p<0.001. n = 15 larvae for each group. Three independent experiments were performed for each comparison study with similar results. (C-H) Inhibitor Int-H1-S6A, F8A blocked the expression of c-myc target gene odc1. In situ hybridization showed up-regulation of odc1 expression in the neuromast 3 or 6 hrs after neomycin treatment (D, G); whereas Int-H1-S6A, F8A markedly suppressed odc1 expression (E, H). Scale bars: 10 μm.