Research Paper Volume 15, Issue 1 pp 230—245

Increased expression of GPX4 promotes the tumorigenesis of thyroid cancer by inhibiting ferroptosis and predicts poor clinical outcomes

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Figure 5. Knockdown of GPX4 inhibits proliferation in thyroid cancer cells. (A) GPX4 expression levels in FTC133, K1 and TPC-1 cells by western blot analysis. (B) GPX4 expression in FTC133 cells transfected with control, NC siRNA, or siGPX4 was confirmed by western blot analysis. (C) A CCK-8 assay was used to evaluate the viability of FTC133 cells transfected with NC siRNA/siGPX4. (D) Colony formation assay demonstrated the proliferation ability of FTC133 cells transfected with NC siRNA/siGPX4. (E) Ki-67 and PCNA protein expression in FTC133 cells transfected with NC siRNA/siGPX4 under erastin treatment.