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2016 ; 113
(18
): E2516-25
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Comparative systems pharmacology of HIF stabilization in the prevention of
retinopathy of prematurity
#MMPMID27091985
Hoppe G
; Yoon S
; Gopalan B
; Savage AR
; Brown R
; Case K
; Vasanji A
; Chan ER
; Silver RB
; Sears JE
Proc Natl Acad Sci U S A
2016[May]; 113
(18
): E2516-25
PMID27091985
show ga
Retinopathy of prematurity (ROP) causes 100,000 new cases of childhood blindness
each year. ROP is initiated by oxygen supplementation necessary to prevent
neonatal death. We used organ systems pharmacology to define the transcriptomes
of mice that were cured of oxygen-induced retinopathy (OIR, ROP model) by
hypoxia-inducible factor (HIF) stabilization via HIF prolyl hydroxylase
inhibition using the isoquinolone Roxadustat or the 2-oxoglutarate analog
dimethyloxalylglycine (DMOG). Although both molecules conferred a protective
phenotype, gene expression analysis by RNA sequencing found that Roxadustat can
prevent OIR by two pathways: direct retinal HIF stabilization and induction of
aerobic glycolysis or indirect hepatic HIF-1 stabilization and increased serum
angiokines. As predicted by pathway analysis, Roxadustat rescued the hepatic
HIF-1 knockout mouse from retinal oxygen toxicity, whereas DMOG could not. The
simplicity of systemic treatment that targets both the liver and the eye provides
a rationale for protecting the severely premature infant from oxygen toxicity.