Studies on the effect of timolol maleate on human corneal endothelial cells
AIM: To examine the effect of timolol maleate, a topical anti-glaucoma drug, on in vitro cultured human corneal endothelial(HCE)cells and lay foundations for its secure medication clinically. METHODS: After in vitro cultured HCE cells treated with timolol maleate at different concentrations, the...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Press of International Journal of Ophthalmology (IJO PRESS)
2013-06-01
|
| Series: | Guoji Yanke Zazhi |
| Subjects: | |
| Online Access: | http://www.ies.net.cn/cn_publish/2013/6/201306002.pdf |
| _version_ | 1818950216899887104 |
|---|---|
| author | Ting-Jun Fan Bei-Bei Sui Qing-Yang Wang Qian Wen Qian Sun Miao-Miao Yu Yuan Ge |
| author_facet | Ting-Jun Fan Bei-Bei Sui Qing-Yang Wang Qian Wen Qian Sun Miao-Miao Yu Yuan Ge |
| author_sort | Ting-Jun Fan |
| collection | DOAJ |
| description | AIM: To examine the effect of timolol maleate, a topical anti-glaucoma drug, on in vitro cultured human corneal endothelial(HCE)cells and lay foundations for its secure medication clinically. METHODS: After in vitro cultured HCE cells treated with timolol maleate at different concentrations, the situation of cellular growth, proliferation, and morphology was checked under an inverted light microscope. And plasma membrane permeability, DNA fragmentations, and ultra-structure of HCE cells were detected by acridine orange/ethidium bromide(AO/EB)double fluorescent staining, DNA agarose gel electrophoresis, and transmission electron microscopy(TEM), respectively. RESULTS: After treated with timolol maleate at concentrations from 0.15625g/L to 5g/L, in vitro cultured HCE cells showed typical characteristics of apoptosis, including growth retarding, number decreasing, cytoplasmic shrinking, vacuolation, falling off from well bottom of culture plate, plasma membrane permeability increasing, chromatin condensation, DNA fragmentation, appearance of apoptotic body, and so on. The apoptosis-inducing effect of timolol maleate was in dose- and time-dependent manners. The greatest apoptosis-inducing effect of timolol maleate on HCE cells was found at the clinic medication concentration of 2.5-5g/L, and their induced apoptotic rate of HCE cells at 28 hours reached 83.23%-96.71%, respectively. CONCLUSION: Timolol maleate within the concentration of 0.15625-5g/L has an obvious apoptosis-inducing effect on HCE cells, and has tremendous toxicity to HCE cells at clinic medication dosage. Timolol maleate should be carefully utilized in ophthalmic clinic. |
| first_indexed | 2024-12-20T09:15:04Z |
| format | Article |
| id | doaj.art-e7523ad4a087468881dea8797b543af9 |
| institution | Directory Open Access Journal |
| issn | 1672-5123 |
| language | English |
| last_indexed | 2024-12-20T09:15:04Z |
| publishDate | 2013-06-01 |
| publisher | Press of International Journal of Ophthalmology (IJO PRESS) |
| record_format | Article |
| series | Guoji Yanke Zazhi |
| spelling | doaj.art-e7523ad4a087468881dea8797b543af92022-12-21T19:45:27ZengPress of International Journal of Ophthalmology (IJO PRESS)Guoji Yanke Zazhi1672-51232013-06-011361069107210.3980/j.issn.1672-5123.2013.06.02Studies on the effect of timolol maleate on human corneal endothelial cellsTing-Jun FanBei-Bei SuiQing-Yang WangQian WenQian SunMiao-Miao YuYuan GeAIM: To examine the effect of timolol maleate, a topical anti-glaucoma drug, on in vitro cultured human corneal endothelial(HCE)cells and lay foundations for its secure medication clinically. METHODS: After in vitro cultured HCE cells treated with timolol maleate at different concentrations, the situation of cellular growth, proliferation, and morphology was checked under an inverted light microscope. And plasma membrane permeability, DNA fragmentations, and ultra-structure of HCE cells were detected by acridine orange/ethidium bromide(AO/EB)double fluorescent staining, DNA agarose gel electrophoresis, and transmission electron microscopy(TEM), respectively. RESULTS: After treated with timolol maleate at concentrations from 0.15625g/L to 5g/L, in vitro cultured HCE cells showed typical characteristics of apoptosis, including growth retarding, number decreasing, cytoplasmic shrinking, vacuolation, falling off from well bottom of culture plate, plasma membrane permeability increasing, chromatin condensation, DNA fragmentation, appearance of apoptotic body, and so on. The apoptosis-inducing effect of timolol maleate was in dose- and time-dependent manners. The greatest apoptosis-inducing effect of timolol maleate on HCE cells was found at the clinic medication concentration of 2.5-5g/L, and their induced apoptotic rate of HCE cells at 28 hours reached 83.23%-96.71%, respectively. CONCLUSION: Timolol maleate within the concentration of 0.15625-5g/L has an obvious apoptosis-inducing effect on HCE cells, and has tremendous toxicity to HCE cells at clinic medication dosage. Timolol maleate should be carefully utilized in ophthalmic clinic.http://www.ies.net.cn/cn_publish/2013/6/201306002.pdfhuman corneal endothelial cellstimolol maleate apoptosisDNA fragmentationapoptotic body |
| spellingShingle | Ting-Jun Fan Bei-Bei Sui Qing-Yang Wang Qian Wen Qian Sun Miao-Miao Yu Yuan Ge Studies on the effect of timolol maleate on human corneal endothelial cells Guoji Yanke Zazhi human corneal endothelial cells timolol maleate apoptosis DNA fragmentation apoptotic body |
| title | Studies on the effect of timolol maleate on human corneal endothelial cells |
| title_full | Studies on the effect of timolol maleate on human corneal endothelial cells |
| title_fullStr | Studies on the effect of timolol maleate on human corneal endothelial cells |
| title_full_unstemmed | Studies on the effect of timolol maleate on human corneal endothelial cells |
| title_short | Studies on the effect of timolol maleate on human corneal endothelial cells |
| title_sort | studies on the effect of timolol maleate on human corneal endothelial cells |
| topic | human corneal endothelial cells timolol maleate apoptosis DNA fragmentation apoptotic body |
| url | http://www.ies.net.cn/cn_publish/2013/6/201306002.pdf |
| work_keys_str_mv | AT tingjunfan studiesontheeffectoftimololmaleateonhumancornealendothelialcells AT beibeisui studiesontheeffectoftimololmaleateonhumancornealendothelialcells AT qingyangwang studiesontheeffectoftimololmaleateonhumancornealendothelialcells AT qianwen studiesontheeffectoftimololmaleateonhumancornealendothelialcells AT qiansun studiesontheeffectoftimololmaleateonhumancornealendothelialcells AT miaomiaoyu studiesontheeffectoftimololmaleateonhumancornealendothelialcells AT yuange studiesontheeffectoftimololmaleateonhumancornealendothelialcells |