Rapid and noninvasive imaging of retinal ganglion cells in live mouse models of glaucoma.

Rapid and noninvasive imaging of retinal ganglion cells in live mouse models of glaucoma.
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DOI:
10.1007/s11307-009-0292-2
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发表时间:
2010-08
影响因子:
3.1
通讯作者:
Nagasaki, Takayuki
Nagasaki, Takayuki
中科院分区:
医学3区
文献类型:
--
作者:
Tosi, Joaquin;Wang, Nan-Kai;Zhao, Jin;Chou, Chai Lin;Kasanuki, J. Mie;Tsang, Stephen H.;Nagasaki, Takayuki

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我们报告了一种利用标准荧光显微镜监测活体小鼠视网膜神经节细胞(RGC)存活的无创方法。本研究使用在 RGC 特异性启动子 Thy1 调控下表达青色荧光蛋白 (CFP) 的转基因小鼠。我们确定 Thy1-CFP 表达是存活 RGC 数量的定量反映,荧光发射至少稳定一年,并且荧光损失与青光眼损伤直接相关。在高压青光眼模型中,周边视网膜优先受到影响。我们的实时成像技术可以对同一动物的 RGC 存活率进行纵向评估。对神经细胞死亡和存活的无创监测是一种强大的技术,使研究人员能够验证基于神经保护的新的潜在青光眼疗法。
We report a noninvasive method for the monitoring of retinal ganglion cell (RGC) survival in live mice utilizing standard fluorescence microscopy. Transgenic mice expressing cyan fluorescent protein (CFP) under the regulation of an RGC-specific promoter Thy1 were used in this study. We established that Thy1-CFP expression is a quantitative reflection of the number of surviving RGCs, the fluorescence emission is stable for at least a year and that the loss of fluorescence correlates directly to glaucomatous damage. In high pressure glaucoma model, the peripheral retina is preferentially affected. Our live-imaging technique allows for the longitudinal assessment of RGC survival from the same animal. Noninvasive monitoring of neuronal cell death and survival is a powerful technique that would allow investigators to validate new potential glaucoma therapy based on neuroprotection.
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