一种新的可用于干细胞移植的新西兰白兔青光眼视神经损伤模型
郭立云1; 魏景宽2,3; 杨上川[*]2; 王正波[*]2
刊名动物学研究
2012
卷号33期号:2页码:225−230
关键词青光眼 动物模型 地塞米松 干细胞移植
其他题名Glaucoma model for stem cell transplantation research in New Zealand white rabbits
通讯作者yangsc@mail.kiz.ac.cn ; wangzb@mail.kiz.ac.cn
合作状况其它
中文摘要青光眼是一种致盲且不可逆神经退行性疾病, 目前还没有能够彻底解决其视野缺失的治疗方法。神经干细胞研究的兴起为该病的治疗带来了可能, 且迫切需要一种适用于干细胞移植研究的青光眼造模方法。该实验对新西兰白兔球结膜下注射地塞米松给药, 2.5 mg/次, 一周3 次, 持续8 周。眼底照相显示造模眼眼球屈光间质保持清晰, 视乳头凹陷明显扩大、血管呈屈膝状; 病理切片显示造模眼视神经明显损伤; 海德堡视网膜断层扫描仪(Heidelberg retina tomography, HRT)定量分析显示造模眼盘沿面积减小(1.10±0.88) mm2、杯/盘比增大0.17±0.13, 视网膜神经纤维层平均厚度降低(0.44±0.31) mm 等青光眼性质病理改变, 且均达到极显著水平(P<0.001)。建模成功后, 于角膜缘后4 mm 向造模眼玻璃体注入猕猴神经干细胞, 植入5 个月后摘取眼球切片, 通过荧光显微镜观察到存活的移植细胞。该实验建立了一种简单可靠、重复性强且适用于神经干细胞移植研究的慢性青光眼造模方法。
英文摘要Glaucoma is a typical irreversible blind neurodegenerative disease for which there is no effective treatment for halting visual deterioration. The recent development of neural stem cells studies sheds light on a potential resolution for this disease. As a result, an appropriate glaucoma modeling method for stem cell transplantation study is needed. In the present study, Dexamethasone was injected unilaterally into the conjunctiva of New Zealand rabbit at the dose of 2.5 mg (5 mg/mL), three times a week. After eight weeks, the eye ground photography showed that the optic nerve head of the treated eye was expanded, and the blood vessel was geniculate compared to the control eye, while the ocular media remained transparent. The hematoxylin-eosin (HE) stain of the retinal nerve fiber layer (RNFL) sections showed optic neuron death in the treated eye. The Heidelberg Retina Tomography (HRT) results showed optic disk morphological changes consistent with the pathophysiology of glaucoma in the treated eye, including a decrease in the rim area (1.10±0.88) mm 2 and mean RNFL thickness (0.44±0.31) mm, and an increase in the cup/disk ratio 0.17±0.13. Then neural stem cells were injected into the vitreous body of the treated eye. After five months, surviving transplanted cells were observed. These results suggest a simple and reproducible chronic glaucoma model, which is appropriate for neural stem cell transplant research, has been successfully developed.
收录类别其他
资助信息“973”项目(947703);国家自然基金项目(31070963,30670669).
语种中文
公开日期2013-06-18
内容类型期刊论文
源URL[http://159.226.149.42:8088/handle/152453/7491]  
专题昆明动物研究所_神经系统编码
作者单位1.昆明医学院第四附属医院 眼科, 云南昆明650021
2.中国科学院昆明动物研究所, 云南昆明650223
3.中国科学院研究生院, 北京100049
推荐引用方式
GB/T 7714
郭立云,魏景宽,杨上川[*],等. 一种新的可用于干细胞移植的新西兰白兔青光眼视神经损伤模型[J]. 动物学研究,2012,33(2):225−230.
APA 郭立云,魏景宽,杨上川[*],&王正波[*].(2012).一种新的可用于干细胞移植的新西兰白兔青光眼视神经损伤模型.动物学研究,33(2),225−230.
MLA 郭立云,et al."一种新的可用于干细胞移植的新西兰白兔青光眼视神经损伤模型".动物学研究 33.2(2012):225−230.
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