Abstract:
OBJECTIVE:To observe the effect of sirt1 on retinal ganglion cells (RGC) with high glucose culture and to explore the role of sirt1 in the development of diabetic retinopathy. Method RGC was infected by sirt1 lentivirus overexpression vector pLV5-sirt1 and interference vector pLV3-si-sirt1. The normal control group and control virus vector group were set up at the same time. After 48 h of infection, the viability of RGC was detected by CCK8 kit, the apoptosis rate was detected by FCM analysis, and the protein expression of p53, FOXO3a, NF-κ B, caspase-3 was detected by Western blot. RESULTS:After RGC were infected with lentivirus, the cell viability of lentivirus overexpression vector pLV5-sirt1 was significantly higher than that of the high glucose group and the sirt1 overexpression control group, while the cell viability of interference vector pLV3-si-sirt1 was significantly lower than that of the high glucose group and the sirt1 interference control group (P < 0.05). At the same time, the apoptosis rate of RGC cells infected by lentivirus overexpression vector pLV5-sirt1 was lower than that of the high glucose group and the control virus vector group, while the apoptosis rate of the interference vector pLV3-si-sirt1 cells was significantly higher than that of the high glucose group and the control virus vector group (P < 0.05). The results of Western blotting showed that the expression of p53, FOXO3a, NF-κ B and caspase-3 in RGC cells decreased significantly after infection with pLV5-sirt1 compared with the high glucose group and the control virus vector group, while the expression of p53, FOXO3a, NF-κB and caspase-3 in RGC cells increased significantly after infection with pLV3-si-sirt1 (P < 0.05). CONCLUSION:Sirt1 can inhibit the apoptosis of RGCs through regulating the expression of some apoptotic cytokinessome, and it can be used as a candidate gene for the biotherapy of retinal diseases.
journal_name
Int Ophthalmoljournal_title
International ophthalmologyauthors
Zhou Y,Cai LJ,Xu LH,Guo Y,Chen N,Yao Qdoi
10.1007/s10792-020-01638-4subject
Has Abstractpub_date
2020-11-11 00:00:00eissn
0165-5701issn
1573-2630pii
10.1007/s10792-020-01638-4pub_type
杂志文章abstract:PURPOSE:The aim of the study reported here was to assess the influence of serum HbA1c levels on foveal choroidal thickness in diabetic patients. METHODS:A total of 122 eyes from 122 patients who had type 2 DM were studied in this prospective, cross-sectional study. Patients were divided into three groups: 43 patients ...
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