Human β-NGF gene transferred to cat corneal endothelial cells
Human β-NGF gene transferred to cat corneal endothelial cells作者机构:Department of Ophthalmology the Affiliated Hospital of Medical College Qingdao University Central Laboratory of the Affiliated Hospital of Medical College Qingdao University
出 版 物:《International Journal of Ophthalmology(English edition)》 (国际眼科杂志(英文版))
年 卷 期:2016年第9卷第7期
页 面:937-942页
核心收录:
学科分类:1002[医学-临床医学] 100212[医学-眼科学] 10[医学]
基 金:Supported by National Natural Science Foundation(No.30572011) Natural Science Foundation of Shandong Province(No.ZR2010HQ041)
主 题:nerve growth factor corneal endothelialcell transfect proliferation
摘 要:AIM: To transfect the cat corneal endothelial cells (CECs) with recombinant human β-nerve growth factor gene adeno-associated virus (AAV-β-NGF) and to observe the effect of the expressed β-NGF protein on the proliferation activity of cat CECs. METHODS: The endothelium of cat cornea was torn under the microscope and rapidly cultivated in Dulbecco's modified Eagle's medium (DMEM) to form single layer CECs and the passage 2 endothelial cells were used in this experiment. The recombinant human AAV-β-NGF was constructed. The recombinant human AAV-β-NGF was transferred into cat CECs directly. Three groups were as following: normal CEC control group, CEC-AAV control group and recombinant CEC- AAV-β-NGF group. Forty-eight hours after transfection, the total RNA was extracted from the CEC by Trizol. The expression of the β-NGF target gene detected by fluorescence quantitative polymerase chain reaction; proliferation activity of the transfected CEC detected at 48h by MTT assay; the percentage of G1 cells among CECs after transfect was detected by flow cytometry method (FCM); cell morphology was observed under inverted phase contrast microscope. RESULTS: The torn endothelium culture technique rapidly cultivated single layer cat corneal endothelial cells. The self-designed primers for the target gene and reference gene were efficient and special confirmed through electrophoresis analysis and DNA sequencing. Forty-eight hours after transfect, the human β-NGF gene mRNA detected by fluorescence quantitative polymerase chain reaction showed that there was no significant difference between normal CEC control group and CEC-AAV control group (P〉0.05); there was significant difference between two control groups and recombinant CEC-AAV-β-NGF group (P〈0.05). MTT assay showed that transfect of recombinant AAV-β-NGF promoted the proliferation activity of cat CEC, while there was no significant difference between normal CEC control group and CEC-AAV control group (P〉0.05). FCM result show