Fig. 7: FERMT1 functions downstream of CARM1 via histone modification.

A RNA-seq analysis revealed genes whose expression was upregulated (red) or downregulated (blue) in control and CARM1-knockdown Huh7 cells. B Schematic illustration of the peaks identified by ChIP-seq analysis with an anti-CARM1 antibody in Huh7 cells. C Integration of ChIP-seq and RNA-seq data. The Venn diagram shows the overlap between targets and differentially expressed genes. D Detection of the mRNA levels of CARM1 and FERMT1 in control and CARM1-knockdown Huh7 cells by qRT-PCR. E Schematic representation of the four segments near the TSS of FERMT1. ChIP primers were designed for each of the four sequences. F A ChIP assay was performed to detect CARM1 enrichment in the FERMT1 promoter region using an anti-CARM1 antibody. G Western blotting analysis was performed to show the expression level of H3R17me2 in control and CARM1-knockdown cells. H ChIP assay was performed to detect H3R17me2 enrichment in the FERMT1 promoter region using an anti-H3R17me2 antibody. The IgG antibody was used as the negative control. The inhibitory effect of CARM1 depletion on Huh7 cells, as demonstrated by rescue experiments, was effectively counteracted by the overexpression of FERMT1, as shown by both the CCK-8 (I) and transwell (J) assays. (n = 3; *p < 0.05, **p < 0.01, and ***p < 0.001).