TNF and rheumatoid arthritis: It was detected by Western blot that (Zhou et al., 2021) lncRNA-NEAT1 was upregulated in synovial tissues of RA patients and RA fibroblast-like synoviocytes (RA-FLSs) treated with tumor necrosis factor-α (TNF-α), while miR-204-5p was downregulated.