Fig. 6: METTL3 promotes BC cell resistance to ADR by enhancing miR-221-3p expression in vivo.

a The expression of miR-221-3p in mouse tumor tissues. b Immunoblots and quantification of HIPK2 and Che-1 in mouse tumor tissues, normalized to GAPDH. c Representative images of BC xenografts in nude mice. d The growth curve of BC xenografts in nude mice. e The weight of BC xenografts in nude mice. *p < 0.05 compared to oe-NC + NC inhibitor + ADR and #p < 0.05 compared to oe-NC + miR-221-3p inhibitor + ADR by Tukey’s test-corrected ANOVA or by Bonferroni-corrected repeated measures ANOVA for d.