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Oligomeric proanthocyanidin suppresses the death of retinal ganglion cells

November 1st, 2013
Oligomeric proanthocyanidin suppresses the death of retinal ganglion cells
Oligomeric proanthocyanidin reduced H2O2-induced apoptosis in retinal ganglion cell line RGC-5 (Hoechst 33342 staining). The left: H2O2 (400 μM) group; the right: and H2O2 (400 μM) + oligomeric proanthocyanidin (20 μM) group. The arrowheads pointed to apoptotic cells. Credit: Neural Regeneration Research

The death of retinal ganglion cells is a hallmark of many optic neurodegenerative diseases such as glaucoma and retinopathy. Oxidative stress is one of the major reasons to cause the cell death. A latest study, published in the Neural Regeneration Research (Vol. 8, No. 25, 2013), has shown that grape seed extract can protect retinal ganglion cells against oxidative stress-induced apoptosis.

In this study, Prof. Kwok-Fai So, an academician of Chinese Academy of Sciences, and Prof. Daxiang Lu from Jinan University, China show that oligomeric proanthocyanidin, enriched in grape seeds, has a protective effect on retinal ganglion cells against oxidative stress-induced injury, as confirmed by using both RGC-5 cell lines and retinal explant culture. These findings imply a potential application of oligomeric proanthocyanidin in the clinical treatment of many neural diseases, from glaucoma, ischemia to neurodegenerative disease.

More information:
Wang H, Zhang CJ, Lu D, Shu XM, Zhu LH, Qi RB, So KF, Lu DX, Xu Y. Oligomeric proanthocyanidin protects retinal ganglion cells against oxidative stress-induced apoptosis. Neural Regen Res. 2013;8(25):2317-2326.

Provided by Neural Regeneration Research

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