DICER1/Alu RNA dysmetabolism induces Caspase-8-mediated cell death in age-related macular degeneration (Articolo in rivista)

Type
Label
  • DICER1/Alu RNA dysmetabolism induces Caspase-8-mediated cell death in age-related macular degeneration (Articolo in rivista) (literal)
Anno
  • 2014-01-01T00:00:00+01:00 (literal)
Alternative label
  • Kim Y, Tarallo V, Kerur N, Yasuma T, Gelfand BD, Bastos-Carvalho A, Hirano Y, Yasuma R, Mizutani T, Fowler BJ, Li S, Kaneko H, Bogdanovich S, Ambati BK, Hinton DR, Hauswirth WW, Hakem R, Wright C, Ambati J. (2014)
    DICER1/Alu RNA dysmetabolism induces Caspase-8-mediated cell death in age-related macular degeneration
    in Proceedings of the National Academy of Sciences of the United States of America
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Kim Y, Tarallo V, Kerur N, Yasuma T, Gelfand BD, Bastos-Carvalho A, Hirano Y, Yasuma R, Mizutani T, Fowler BJ, Li S, Kaneko H, Bogdanovich S, Ambati BK, Hinton DR, Hauswirth WW, Hakem R, Wright C, Ambati J. (literal)
Rivista
Note
  • PubMe (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Department of Ophthalmology and Visual Sciences, Department of Biomedical Engineering, Department of Microbiology, Immunology, and Human Genetics, and Department of Physiology, University of Kentucky, Lexington, KY 40536; Angiogenesis Lab, Institute of Genetics and Biophysics, Consiglio Nazionale delle Ricerche, 80131 Naples, Italy; Department of Ophthalmology and Visual Sciences, Moran Eye Center, University of Utah School of Medicine, Salt Lake City, UT 84132; Department of Ophthalmology, Veterans Affairs Salt Lake City Healthcare System, Salt Lake City, UT 84148; Departments of Pathology and Ophthalmology, Keck School of Medicine of the University of Southern California, Los Angeles, CA 90033; Department of Ophthalmology, University of Florida, Gainesville, FL 32610; and j Ontario Cancer Institute, University Health Network, and Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada M5G 2M9 (literal)
Titolo
  • DICER1/Alu RNA dysmetabolism induces Caspase-8-mediated cell death in age-related macular degeneration (literal)
Abstract
  • Geographic atrophy, an advanced form of age-related macular degeneration (AMD) characterized by death of the retinal pigmented epithelium (RPE), causes untreatable blindness in millions worldwide. The RPE of human eyes with geographic atrophy accumulates toxic Alu RNA in response to a deficit in the enzyme DICER1, which in turn leads to activation of the NLRP3 inflammasome and elaboration of IL-18. Despite these recent insights, it is still unclear how RPE cells die during the course of the disease. In this study, we implicate the involvement of Caspase-8 as a critical mediator of RPE degeneration. Here we show that DICER1 deficiency, Alu RNA accumulation, and IL-18 up-regulation lead to RPE cell death via activation of Caspase-8 through a Fas ligand-dependent mechanism. Coupled with our observation of increased Caspase-8 expression in the RPE of human eyes with geographic atrophy, our findings provide a rationale for targeting this apoptotic pathway in this disease. (literal)
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