Abstract
AIM: To investigate the expression of connective tissue growth factor (CTGF) and α-smooth muscle actin (α-SMA) in human lens epithelium cell (HLEC) line B3 after transfection by liposome-coated small interfering RNA (siRNA) targeting CTGF. METHODS: HLECs were transfected with siRNA targeting CTGF, labeled with 5’-fluorescein isothiocyanate (5’-FITC) and coated with lipofectamine. The transfection ratio was evaluated via fluorescence intensity. Cell counting kit-8 (CCK-8) assay was performed to assess cytoviability of both non-transfected and transfected HLECs. Quantitative reverse transcription-polymerase chain reaction (RT-PCR), cell immunochemistry and Western blot analysis were conducted to detect the expression changes of CTGF and α-SMA after transfection. RESULTS: A highly effective transfection ratio was observed in siRNA co-transfected with lipofectamine. The transfection ratio reached 95% at 24h. The proliferation of HLECs was inhibited by siRNA after 72h transfection. The expression of CTGF and α-SMA significantly decreased in HLECs after transfected by CTGF siRNA for 24h. This effect was not found in negative control siRNA. CONCLUSION: siRNA targeting CTGF decrease CTGF and α-SMA expression in HLECs, which is a potential therapeutic strategy for posterior capsular opacification.
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