Abstract:
AIM:To investigate the protective effect and its mechanism of lycium barbarum polysaccharides (LBP) against oxidative stress-induced apoptosis in human retinal pigment epithelial cells. METHODS:ARPE-19 cells, a human retinal pigment epithelial cell lines, were exposed to different concentrations of H2O2 for 24h, then cell viability was measured by Cell Counting Kit-8 (CCK-8) assay to get the properly concentration of H2O2 which can induce half apoptosis of APRE-19. With different concentrations of LBP pretreatment, the ARPE-19 cells were then exposed to appropriate concentration of H2O2, cell apoptosis was detected by flow cytometric analysis. Expression levels of Bcl-2 and Bax were measured by real time quantitative polymerase chain reaction (RT-PCR) technique. RSULTS:LBP significantly reduced the H2O2-induced ARPE-19 cells' apoptosis. LBP inhibited the H2O2-induced down-regulation of Bcl-2 and up-regulation of Bax. CONCLUSION:LBP could protect ARPE-19 cells from H2O2-induced apoptosis. The Bcl-2 family had relationship with the protective effects of LBP.
journal_name
Int J Ophthalmoljournal_title
International journal of ophthalmologyauthors
Liu L,Lao W,Ji QS,Yang ZH,Yu GC,Zhong JXdoi
10.3980/j.issn.2222-3959.2015.01.02subject
Has Abstractpub_date
2015-02-18 00:00:00pages
11-6issue
1eissn
2222-3959issn
2227-4898pii
ijo-08-01-011journal_volume
8pub_type
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