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MiR-124a inhibits proliferation and invasion of rheumatoid arthritis synovial fibroblasts.
OBJECTIVE: To investigate the impact of miR-124Aa on the proliferation, invasion and cytokine excretion of rheumatoid arthritis synovial fibroblasts (RASFs) in patients with rheumatoid arthritis (RA).
PATIENTS AND METHODS: RASFs were separated for in-vitro culture, and transfected using lipidosome that connected with chemically synthesized miR-124a mimic or miR-124a inhibitor. Then, MTT, transwell chamber, and flow-cytometry were used to detect the impact on the proliferation, invasion, and apoptosis of RASFs; RT-PCR and Western-blotting were employed to measure the effect of miR-124a on the expressions of matrixmetalloproteinase3/13 (MMP3/13) and interleukin1β (IL-1β) of RASFs.
RESULTS: miR-124a significantly suppresses the proliferation of RASFs, while inhibits the invasion of RASFs. The flow cytometry indicated that miR-124a showed no significant effect on the apoptosis of RASFs. Finally, miR-124a downregulates the expressions of MMP3/13 and IL-1β.
CONCLUSIONS: MiR-124a is of great significance for the onset of RA by inhibiting the proliferation and invasion of RASFs possibly through downregulating the expression of MMP3/13 and IL-1β.
PATIENTS AND METHODS: RASFs were separated for in-vitro culture, and transfected using lipidosome that connected with chemically synthesized miR-124a mimic or miR-124a inhibitor. Then, MTT, transwell chamber, and flow-cytometry were used to detect the impact on the proliferation, invasion, and apoptosis of RASFs; RT-PCR and Western-blotting were employed to measure the effect of miR-124a on the expressions of matrixmetalloproteinase3/13 (MMP3/13) and interleukin1β (IL-1β) of RASFs.
RESULTS: miR-124a significantly suppresses the proliferation of RASFs, while inhibits the invasion of RASFs. The flow cytometry indicated that miR-124a showed no significant effect on the apoptosis of RASFs. Finally, miR-124a downregulates the expressions of MMP3/13 and IL-1β.
CONCLUSIONS: MiR-124a is of great significance for the onset of RA by inhibiting the proliferation and invasion of RASFs possibly through downregulating the expression of MMP3/13 and IL-1β.
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