Results of RIP and ChIP assays for primary HDFs. (A) Relative expression of EZH2 in heat-treated HDFs. (B) RIP analysis was performed using antibodies against EZH2 and IgG. (C) pc-EZH2 and si-EZH2 were transfected into HDFs. (D) ChIP analysis was performed using antibodies against H3K27me3 and IgG. (E) Relative expression of LET in HDFs transfected with pc-EZH2 or si-EZH2. (F) Correlation of LET and EZH2 expression in burn tissues from patients. *P<0.05 and **P<0.01 vs. control or input, respectively. RIP, RNA immunoprecipitation; ChIP, chromatin immunoprecipitation; HDF, human dermal fibroblast; EZH2, enhancer of zeste homolog 2; IgG, immunoglobulin G; pc-EZH2, EZH2 overexpression plasmid; si-EZH2, EZH2, small interfering RNA; LET, low expression in tumor; lncRNA, long non-coding RNA; H3K27me3, histone H3 lysine 27 trimethylation.