Stanniocalcin-1 is a Modifier of Oxygen-Induced Retinopathy Severity

Autor: Colin Andrew Bretz, Michael P. Fautsch, David Sheikh-Hamad, Alan D. Marmorstein, Lauren A Dalvin, Mary Elizabeth Hartnett, Gavin W. Roddy, Cheryl R. Hann, Ricky Z Cui
Rok vydání: 2019
Předmět:
Zdroj: Curr Eye Res
ISSN: 1460-2202
0271-3683
Popis: PURPOSE/AIM: Abnormal activation of signaling pathways related to angiogenesis, inflammation, and oxidative stress has been implicated in the pathophysiology of retinopathy of prematurity (ROP), a leading cause of blindness in pre-term infants. Therapies for ROP include laser and anti-vascular endothelial growth factor agents. However, these therapies have side effects, and even with adequate treatment, visual acuity can be impaired. Novel therapeutic options are needed. Stanniocalcin-1 (STC-1) is neuroprotective protein with anti-inflammatory and anti-oxidative stress properties. Rodent models of oxygen-induced retinopathy (OIR) were selected to determine whether STC-1 plays a role in the development of OIR. MATERIALS AND METHODS: STC-1 gene and protein expression was first evaluated in the Sprague Dawley rat OIR model that is most similar to human ROP. OIR was then induced in wild-type and Stc-1(−/−) mice. Retinas were isolated and evaluated for avascular and neovascular area on retinal flat mounts. Quantification of gene expression by quantitative real-time PCR was performed. VEGF was assayed by ELISA in media obtained from induced pluripotent stem cell derived retinal pigment epithelial (iPS-RPE) cells following treatment with recombinant STC-1. RESULTS: STC-1 was significantly upregulated in a rat model of OIR compared to room air controls at the gene (P
Databáze: OpenAIRE