Effect of Mitomycin C, Dexamethasone, and Cyclosporine A 0.05% on the Proliferation of Human Corneal Keratocytes
Journal of the Korean Ophthalmological Society
;
: 1215-1221, 2011.
Article
in Korean
| WPRIM
| ID: wpr-9180
ABSTRACT
PURPOSE:
To investigate the biologic effect of mitomycin C, dexamethasone and cyclosporine A 0.05% on cultured human keratocytes in vitro.METHODS:
Human corneal keratocytes were exposed to a concentration of mitomycin C (0.05%), dexamethasone (0.05%) and cyclosporine A (0.05%) for a period of 3, 5, and 10 minutes. MTT-based colorimetric assay was performed to assess the metabolic activity of cellular proliferation and the concentration of type I procollagen COOH-terminal peptide (PIP) and laminin were measured. Cell damage was determined by using the lactate dehydrogenase (LDH) assay. Apoptotic response was evaluated utilizing flow cytometric analysis with Annexin V and propiodium iodide.RESULTS:
The inhibitory effect of cellular proliferation and cytotoxicity in cultured human keratocytes showed a time-dependent response in all drugs. The production of PIP and laminin showed a time-dependent response in cultured cells. Apoptosis was observed in flow cytometry after being treated with mitomycin C, dexamethasone and cyclosporine A. Cyclosporin A resulted in less apoptosis of keratocytes than mitomycin C and dexamethasone.CONCLUSIONS:
The apoptotic response of mitomycin C, dexamethasone and cyclosporine A is associated with the inhibitory effect of human corneal keratocyte proliferation. To decrease corneal opacity, mitomycin C and dexamethasone were more effective than cyclosporine A in the present study. Additionally, a high concentration of cyclosporine A greater than 0.05% is necessary to lower corneal opacity.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Dexamethasone
/
Cells, Cultured
/
Laminin
/
Mitomycin
/
Cyclosporine
/
Apoptosis
/
Annexin A5
/
Corneal Opacity
/
Collagen Type I
/
Cell Proliferation
Limits:
Humans
Language:
Korean
Journal:
Journal of the Korean Ophthalmological Society
Year:
2011
Type:
Article
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