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. 2022 Apr 25;8:227. doi: 10.1038/s41420-022-00949-y

Fig. 3. JMJD2C promotes CDDP resistance in uveal melanoma cells by removing histone methylation of MDM2 promoter.

Fig. 3

A The expression of MDM2 in uveal melanoma tissues as determined by RT-qPCR (uveal melanoma = 32, normal = 30). B The expression of MDM2 in normal uveal epithelial cells ARPE-19, uveal melanoma cells MUM-2B, and drug-resistant cell line MUM-2B/CDDP as determined by RT-qPCR. C The expression of MDM2 in MUM-2B/CDDP cells after JMJD2C silencing and MUM-2B cells after JMJD2C overexpression as measured by Western blot assay. D Enrichment degree of H3K9me3 in MDM2 promoter region in MUM-2B/CDDP cells after JMJD2C silencing and MUM-2B cells after JMJD2C overexpression as determined by ChIP. E The expression of MDM2 silenced by shRNAs in MUM-2B/CDDP cells as measured by Western blot assay. F The protein expression of JMJD2C and MDM2 in MUM-2B/CDDP cells treated with sh-MDM2 or combined with oe-JMJD2C as measured by Western blot assay. G The viability and IC50 of MUM-2B/CDDP cells treated with sh-MDM2 or combined with oe-JMJD2C as assessed by CCK-8 assay. H The senescence rate of MUM-2B/CDDP cells treated with sh-MDM2 or combined with oe-JMJD2C as assessed by SA-β-gal staining. I The migration and invasion abilities of MUM-2B/CDDP cells treated with sh-MDM2 or combined with oe-JMJD2C as assessed by Transwell assay. * p < 0.05. Cell experiments were repeated three times independently.