Inhibitory Effect of Diclofenac Sodium on the Proliferation of Rabbit Corneal Epithelial Cells in vi

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Purpose:To investigate the inhibitory effect of diclofenac sodium on rabbit corneal epithelial cells (RCECs) in vitro and explore its pharmacological mechanism. Methods: The fresh rabbit cornea was cultured to get the primary RCECs,and RCECs of passage 2 were used for the research. The cells were divided into experimental groups,the cells in which were incubated with different concentrations(18.18, 27.27, 36.36, 45.45, 54.55 μg/ml) of diclofenac sodium, and control group. The effect of diclofenac sodium on the proliferation of cells was measured by methyl thiazolyl thiazolium (MTT) assay 24, 48 and 72 h after incubation. While the RCECs were divided into experimental groups, the cells in which were incubated with 9 and 12.5 μg/ml diclofenac sodium, and control group. The cell cycle and apoptotic rate were observed by flow cytometer. Results:MTT assay showed that diclofenac sodium had obvious inhibitory effect on RCECs,and the inhibition rate was increasing along with the increase of the concentration of diclofenac sodium and the incubation time(P<0.05). Flow cytometer showed that after incubation with diclofenac sodium, the cells in G0/G1 phase were obviously increased, the apoptosis cusp and apoptotic rate were increased. Conclusion: Diclofenac sodium has obvious inhibitory effect on RCECs, which was dosage-dependent,and it may function by inducing cell apoptosis and ceasing cells cycles. Purpose: To investigate the inhibitory effect of diclofenac sodium on rabbit corneal epithelial cells (RCECs) in vitro and explore its pharmacological mechanism. Methods: The fresh rabbit cornea was cultured to get the primary RCECs, and RCECs of passage 2 were used for the research. The cells were divided into experimental groups, the cells in incubated with different concentrations (18.18, 27.27, 36.36, 45.45, 54.55 μg / ml) of diclofenac sodium, and control group. The effect of diclofenac sodium on the While the RCECs were divided into experimental groups, the cells were incubated with 9 and 12.5 μg / ml diclofenac sodium, and control group . The cell cycle and apoptotic rate were observed by flow cytometer. Results: MTT assay showed that diclofenac sodium had significant inhibitory effect on RCECs, and the inhibition rate was increasing along with the in crease of the concentration of diclofenac sodium and the incubation time (P <0.05). Flow cytometer showed that after incubation with diclofenac sodium, the cells in G0 / G1 phase were were increased increased, the apoptosis cusp and apoptotic rate were increased. Conclusion: Diclofenac sodium has obvious inhibitory effect on RCECs, which was dosage-dependent, and it may function by inducing cell apoptosis and ceasing cells cycles.
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