Author Correction: Endothelial activation of caspase-9 promotes neurovascular injury in retinal vein occlusion

Autor: Kendra V. Johnson, Crystal Koralis Colón Ortiz, Carol M. Troy, Claire W. Chen, Ying Y. Jean, Stephanie K. Yuen, Maria Avrutsky, Jacqueline Lawson, Elisa Canepa, Alexandra J. White, Anna Michelle Potenski, Fatima N. Morales, Guy S. Salvesen, Scott J. Snipas
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Nature Communications
Nature Communications, Vol 11, Iss 1, Pp 1-1 (2020)
ISSN: 2041-1723
Popis: Central nervous system ischemic injury features neuronal dysfunction, inflammation and breakdown of vascular integrity. Here we show that activation of endothelial caspase-9 after hypoxia-ischemia is a critical event in subsequent dysfunction of the blood-retina barrier, using a panel of interrelated ophthalmic in vivo imaging measures in a mouse model of retinal vein occlusion (RVO). Rapid nonapoptotic activation of caspase-9 and its downstream effector caspase-7 in endothelial cells promotes capillary ischemia and retinal neurodegeneration. Topical eye-drop delivery of a highly selective caspase-9 inhibitor provides morphological and functional retinal protection. Inducible endothelial-specific caspase-9 deletion phenocopies this protection, with attenuated retinal edema, reduced inflammation and preserved neuroretinal morphology and function following RVO. These results reveal a non-apoptotic function of endothelial caspase-9 which regulates blood-retina barrier integrity and neuronal survival, and identify caspase-9 as a therapeutic target in neurovascular disease.
Databáze: OpenAIRE