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KMID : 1094020060230020153
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Journal of Veterinary Clinics
2006 Volume.23 No. 2 p.153 ~ p.157
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Effect of Mitomycin-C on Rabbit Conjunctival Fibroblast Proliferation and Apoptosis
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Kwon Young-Sam
Jang Kwang-Ho
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Abstract
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The purpose of this study was to determine the effects of mitomycin C on conjunctival fibroblast proliferation and apoptosis. Rabbit conjunctival fibroblast mono layers were treated with 48 hours application of mitomycin-C. The viability of cells was evauated by MTT assay. To examine the effect of mitomycin-C on the cell proliferation, immunocytochemistry for BrdU staning was performed. Then, we investigated whether mitomycin-C induced cell’s apoptosis by TUNEL staining. As a result of MTT assay, the viability of cells was gradually inhibited in a dose dependent manner by mitomycin-C. The BrdU staining showed that mitomycin-C significantly suppressed the proliferation of conjunctival fibroblast at concentrations of 0.02% or more. When TUNEL assays were performed, the number of apoptotic cells increased 5.6-, 18.5-, and 33.8-fold compared with the control at 0.01, 0.02, and 0.04%, respectively, of mitomycin-C at 48 hours of exposure. Therefore, mitomycin-C may be useful as a regulator in the treatment of corneal diseases that manifest with scar formation and tumor of fibroblast expansion.
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KEYWORD
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mitomycin-C, rabbit, conjunctival fibroblast, apoptosis
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