Fig. 7From: Identification of ferroptosis related markers by integrated bioinformatics analysis and In vitro model experiments in rheumatoid arthritisConstruction and validation of ferroptosis model in vitro A The viability of C28/I2 cells by CCK8 assay; B Western blot validation of RRM2 in vitro (β-actin was used as the internal control); C the expression levels of RRM2 under Erastin treatment were significantly increased when compared with control. *P < 0.05, **P < 0.01, ***P < 0.001Back to article page