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Abstract #24694 Published in IGR 11-4
Rapid and Noninvasive Imaging of Retinal Ganglion Cells in Live Mouse Models of Glaucoma
Tosi J; Wang N-K; Zhao J; Chou CL; Kasanuki JM; Tsang SH; Nagasaki TMolecular Imaging and Biology 2009; 1-8
See also comment(s) by Chris Leung •
Purpose: We report a noninvasive method for the monitoring of retinal ganglion cell (RGC) survival in live mice utilizing standard fluorescence microscopy. Procedures: Transgenic mice expressing cyan fluorescent protein (CFP) under the regulation of an RGC-specific promoter Thy1 were used in this study. Results: 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. Conclusions: 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.
S.H. Tsang. Bernard and Shirlee Brown Glaucoma Laboratory, Departments of Ophthalmology, Pathology and Cell Biol, Columbia University, 630 West 168th Street, New York, 10032, NY, United States. sht2@columbia.edu
Classification:
3.13.3 RGC Imaging (Part of: 3 Laboratory methods > 3.13 In vivo imaging)
11.8 Neuroprotection (Part of: 11 Medical treatment)