MiRNA-6089 inhibits rheumatoid arthritis fibroblast-like synoviocytes proliferation and induces apoptosis by targeting CCR4.
2020
Several studies have suggested that fibroblast-like synoviocytes (FLSs) and miRNAs are implicated in the pathogenesis of rheumatoid arthritis (RA). This study was aimed to evaluate the function of miR-6089 in the regulation of RA-FLSs. The levels of miR-6089 were detected to be significantly lower in the synovial tissues and FLSs of RA than in the healthy synovial tissues and FLSs. The miR-6089 up-regulation in RA-FLSs significantly inhibited the proliferation and promoted cell apoptosis accompany with an increase protein expression of cleaved-Caspase-3, -8 and -9. Furthermore, CCR4 was determined to target miR-6089 directly, and its expression was significantly increased in the synovial tissues of RA than in the healthy synovial tissues. The overexpression of CCR4 reversed the effect of miR-6089 on proliferation and apoptosis in RA-FLSs effectively. In conclusion, our study suggests that the miR-6089 may be a potential target for prevention and treatment of RA.
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