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Published in: Graefe's Archive for Clinical and Experimental Ophthalmology 8/2019

01-08-2019 | Basic Science

Systemic Rho-kinase inhibition using fasudil in mice with oxygen-induced retinopathy

Authors: Claudia Brockmann, Caitlin Corkhill, Elzbieta Jaroslawska, Sabrina Dege, Tobias Brockmann, Norbert Kociok, Antonia M. Joussen

Published in: Graefe's Archive for Clinical and Experimental Ophthalmology | Issue 8/2019

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Abstract

Purpose

To investigate the influence of the selective Rho-kinase (ROCK) inhibitor, fasudil, on the mRNA level of proinflammatory factors and the retinal vascular development in mice with oxygen-induced retinopathy (OIR).

Methods

C57BL/6J mice underwent standard protocol for OIR induction from postnatal days 7 to 12. Subsequently, they received a daily intraperitoneal injection of fasudil or sodium chloride from P12 to P16. Analyses were performed using vascular staining on retinal flat mounts, RNA expression by qPCR, and immunohistochemistry on paraffin sections.

Results

On retinal flat mounts, the proportion of avascular area and tuft formation did not differ between the fasudil and NaCl group. Immunohistochemical staining revealed a less intense staining with inflammatory markers after fasudil. Nevertheless, there were no differences on RNA level between the two groups.

Conclusions

In conclusion, our findings support that daily systemic application of fasudil does not decrease retinal neovascularization in rodents with oxygen-induced retinopathy. The results of our study together with the controversial results on the effects of different ROCK inhibitors from the literature makes it apparent that effects of ROCK inhibition are more complex, and further studies are necessary to analyze its potential therapeutic effects.
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Metadata
Title
Systemic Rho-kinase inhibition using fasudil in mice with oxygen-induced retinopathy
Authors
Claudia Brockmann
Caitlin Corkhill
Elzbieta Jaroslawska
Sabrina Dege
Tobias Brockmann
Norbert Kociok
Antonia M. Joussen
Publication date
01-08-2019
Publisher
Springer Berlin Heidelberg
Published in
Graefe's Archive for Clinical and Experimental Ophthalmology / Issue 8/2019
Print ISSN: 0721-832X
Electronic ISSN: 1435-702X
DOI
https://doi.org/10.1007/s00417-019-04365-4

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