Establishment of an adult zebrafish model of retinal neurodegeneration induced by NMDA

• 作者: Han-Tsing Wang Hong Xu Ming Jin Ning Wang Su-Qi Zou Wei-Wei Sheng Xu Zhang Ye Lu Yi-Jiang Bai Yu-Lian Pang Zhi-Wen Luo
• 来源期刊: 国际眼科杂志:英文版
• 学科: 医学
• 关键词: ZEBRAFISH NMDA administration method RETINAL GANGLION cell glaucomatous animal model RESVERATROL
• 年，卷（期）: gjykzzywb_2019,（8）
• 页码范围: 1250-1261
• 页数: 12页
• 分类号: R774.6

摘要

AIM: To establish a model of retinal neurodegeneration induced by N-Methyl-D-aspartic acid(NMDA) in adult zebrafish.METHODS: We compared the effects of three different NMDA delivery methods on retinal neurodegeneration in adult zebrafish: immersion(I.M.), intravitreal injection(I.V.), and intraperitoneal injection(I.P.), and examined retinal pathology and degeneration by hematoxylin and eosin and TUNEL staining in the treated zebrafish. Effects of the NMDA receptor antagonist MK-801 and the natural product resveratrol on NMDA-induced retinal neurodegeneration were also assessed.RESULTS: The thickened inner retina was seen in histology with 100 μmol/L NMDA by I.M. administration. Significant apoptosis in the retinal ganglion cell layer and retinal thickness reduction occurred in 0.5 mol/L NMDA I.P. administration group.Seizure-like behavioral changes, but no retinal histological alteration occurred in 16 mg/kg NMDA I.P. administration group. Resveratrol and MK-801 prevented NMDA-induced retinal neurodegeneration in the zebrafish. CONCLUSION: Among the three drug administration methods, I.V. injection of NMDA is the most suitable for establishment of an acute retinal damage model inzebrafish. I.M. with NMDA is likely the best for use as a chronic retinal damage model. I.P. treatment with NMDA causes brain damage. Resveratrol and MK801 may be a clinically valuable treatment for retinal neurodegeneration.