Diabetes-mediated IL-17A enhances retinal inflammation, oxidative stress, and vascular permeability.

Cell Immunol

Department of Ophthalmology and Visual Sciences, Case Western Reserve University, School of Medicine, Cleveland, OH, United States; Louis Stokes VA Medical Center, Cleveland, OH, United States. Electronic address:

Published: July 2019

Diabetic retinopathy is a prevailing diabetes complication, and one of the leading causes of blindness worldwide. IL-17A is a cytokine involved in the onset of diabetic complications. In the current study, we examined the role of IL-17A in the development of retinal inflammation and long-term vascular pathology in diabetic mice. We found IL-17A expressing T cells and neutrophils in the retinal vasculature. Further, the IL-17A receptor was expressed on Muller glia, retinal endothelial cells, and photoreceptors. Finally, diabetes-mediated retinal inflammation, oxidative stress, and vascular leakage were all significantly lower in IL-17A mice. These are all clinically meaningful abnormalities that characterize the onset of diabetic retinopathy.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6599623PMC
http://dx.doi.org/10.1016/j.cellimm.2019.04.009DOI Listing

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