Abstract:
PURPOSE:To investigate the regulation of matrix metalloproteinase (MMP)-3 and MMP-13 expression over time and in the presence of cyclosporine A (CsA) in primary cultured human pterygium fibroblasts. We also examined the effects of CsA on cultured human pterygium fibroblasts. METHODS:Primary cultured human pterygium fibroblasts subjected to scratch assays were exposed to 1 and 100 µg/mL of CsA for 3 or 10 minutes. Cells were washed with Dulbecco phosphate-buffered saline, and then incubated with serum-depleted Dulbecco modified Eagle medium/F-12 medium for 48 hours. Expression levels of MMP-3 and MMP-13 proteins and the corresponding mRNA transcripts were determined by western blotting and reverse transcription polymerase chain reaction assays, respectively. RESULTS:Migration of cultured pterygium fibroblast cells was suppressed by pretreatment with CsA compared with controls in a time-dependent and dose-dependent manner (3 minutes, 50.6% ± 1.1 in 1 µg/mL, 60.0% ± 1.2 in 100 µg/mL; 10 minutes, 59.8% ± 5.7 in 1 µg/mL, 60.5 ± 2.4 in 100 µg/mL, respectively, P < 0.01). Pretreatment with CsA also reduced the mRNA (P < 0.05) and protein expression levels (P < 0.05). CONCLUSIONS:CsA was actively involved in the migration of pterygium fibroblasts. Cell migration is inhibited in response to CsA through the inhibition of MMP-3 and MMP-13 expression. These findings reveal the therapeutic potential of CsA on pterygium progression. Further studies will be necessary to elucidate the precise intracellular signal mechanism responsible for CsA-induced downregulation of MMPs in pterygium fibroblasts.
journal_name
Corneajournal_title
Corneaauthors
Kim YH,Jung JC,Jung SY,Kim YI,Lee KW,Park YJdoi
10.1097/ICO.0000000000000477subject
Has Abstractpub_date
2015-09-01 00:00:00pages
1137-43issue
9eissn
0277-3740issn
1536-4798journal_volume
34pub_type
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