Journal
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
Volume 23, Issue 1, Pages -Publisher
MDPI
DOI: 10.3390/ijms23010350
Keywords
retinopathy of prematurity; oxygen-induced retinopathy; secretogranin III; Scg3; anti-Scg3 therapy; anti-angiogenic therapy; humanized antibody; anti-VEGF; aflibercept; safety
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The retinopathy of prematurity (ROP) is a major cause of childhood blindness, and there is an urgent need for a novel therapeutic treatment. Recent research has identified that anti-Scg3 hAb can alleviate pathological retinal neovascularization in mouse models, and it outperforms the current VEGF inhibitor aflibercept in terms of efficacy and safety.
The retinopathy of prematurity (ROP), a neovascular retinal disorder presenting in premature infants, is the leading causes of blindness in children. Currently, there is no approved drug therapy for ROP in the U.S., highlighting the urgent unmet clinical need for a novel therapeutic to treat the disease. Secretogranin III (Scg3) was recently identified as a disease-selective angiogenic factor, and Scg3-neutralizing monoclonal antibodies were reported to alleviate pathological retinal neovascularization in mouse models. In this study, we characterized the efficacy and safety of a full-length humanized anti-Scg3 antibody (hAb) to ameliorate retinal pathology in oxygen-induced retinopathy (OIR) mice, a surrogate model of ROP, by implementing histological and functional analyses. Our results demonstrate that the anti-Scg3 hAb outperforms the vascular endothelial growth factor inhibitor aflibercept in terms of efficacy and safety to treat OIR mice. Our findings support the development of anti-Scg3 hAb for clinical application.
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