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  • Title: Effect of diclofenac sodium and dexamethasone on cultured human Tenon's capsule fibroblasts.
    Author: Sun R, Gimbel HV, Liu S, Guo D, Hollenberg MD.
    Journal: Ophthalmic Surg Lasers; 1999 May; 30(5):382-8. PubMed ID: 10334026.
    Abstract:
    BACKGROUND AND OBJECTIVE: To investigate the effect of diclofenac sodium and dexamethasone on cultured human Tenon's capsule fibroblasts. MATERIALS AND METHODS: Two experiments were conducted. In the first experiment, fibroblasts were treated with either diclofenac sodium or dexamethasone at different concentrations, and the cell growth was quantified by using Coulter counter and hexosaminidase methods at 1, 3, 5, and 7 days after adding the drugs. In the second experiment, the cells were treated with each drug for 24 hours and then the cultures were switched to a drug-free medium. The cell growth was quantified at day 7 after removing the drugs from the medium. RESULTS: In the first experiment, inhibition of fibroblast growth in a dose-dependent manner was observed from days 1 to 7 in the cultures treated with each drug. The inhibitory was more pronounced in the diclofenac treated cultures. The typical spindle-shaped fibroblasts treated with higher concentrations of the drugs became spherical cells. In the second experiment, inhibition was not observed when the cultures were switched to a drug-free medium. The spherical cells recovered to spindle-shaped cells and proliferated as normal cells. CONCLUSION: Our results have shown that diclofenac sodium and dexamethasone can significantly inhibit human Tenon's capsule fibroblast growth in a cell culture model. The inhibitory effect was not observed when the cultures were switched after 24 hours to a drug-free culture medium.
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