(A) Validation of SKP2 knockdown by siRNA in MDA-MB-231 cells by qRT-PCR. n=3; mean ± SEM; one-way ANOVA; ****p < 0.0001.
(B-C) TTK (B) and TFRC (C) RNAs were downregulated by SKP2 knockdown in MDA-MB-231 cells by qRT-PCR. n=3; mean ± SEM; one-way ANOVA; ****p < 0.0001.
(D) Overexpression of TTK and TFRC resensitized RCC4 cells to ferroptosis protected by SKP2 knockdown. n=3; mean ± SEM; two-way ANOVA; *p < 0.05, **p < 0.01, ***p < 0.001, ****p < 0.0001.