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INOS-inhibitor driven neuroprotection in a porcine retina organ culture model.

ABSTRACT: Nitrite oxide plays an important role in the pathogenesis of various retinal diseases, especially when hypoxic processes are involved. This degeneration can be simulated by incubating porcine retinal explants with CoCl2 . Here, the therapeutic potential of iNOS-inhibitor 1400W was evaluated. Degeneration through CoCl2 and treatment with the 1400W were applied simultaneously to porcine retinae explants. Three groups were compared: control, CoCl2 , and CoCl2 + iNOS-inhibitor (1400W). At days 4 and 8, retinal ganglion cells (RGCs), bipolar, and amacrine cells were analysed. Furthermore, the influence on the glia cells and different stress markers were evaluated. Treatment with CoCl2 resulted in a significant loss of RGCs already after 4 days, which was counteracted by the iNOS-inhibitor. Expression of HIF-1? and its downstream targets confirmed the effective treatment with 1400W. After 8 days, the CoCl2 group displayed a significant loss in amacrine cells and also a drastic reduction in bipolar cells was observed, which was prevented by 1400W. The decrease in microglia could not be prevented by the inhibitor. CoCl2 induces strong degeneration in porcine retinae by mimicking hypoxia, damaging certain retinal cell types. Treatment with the iNOS-inhibitor counteracted these effects to some extent, by preventing loss of retinal ganglion and bipolar cells. Hence, this inhibitor seems to be a very promising treatment for retinal diseases.

SUBMITTER: Hurst J

PROVIDER: S-EPMC7171393 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature

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iNOS-inhibitor driven neuroprotection in a porcine retina organ culture model.

Hurst José J Mueller-Buehl Ana Maria AM Hofmann Lisa L Kuehn Sandra S Herms Fenja F Schnichels Sven S Joachim Stephanie Christine SC

Journal of cellular and molecular medicine 20200304 7

Nitrite oxide plays an important role in the pathogenesis of various retinal diseases, especially when hypoxic processes are involved. This degeneration can be simulated by incubating porcine retinal explants with CoCl2 . Here, the therapeutic potential of iNOS-inhibitor 1400W was evaluated. Degeneration through CoCl2 and treatment with the 1400W were applied simultaneously to porcine retinae explants. Three groups were compared: control, CoCl2 , and CoCl2</ ...[more]

PMID: 32130787

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Dataset Information

INOS-inhibitor driven neuroprotection in a porcine retina organ culture model.

Publications

iNOS-inhibitor driven neuroprotection in a porcine retina organ culture model.

Similar Datasets

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