Journal article

Recessive Mutations in RTN4IP1 Cause Isolated and Syndromic Optic Neuropathies


Authors listAngebault, Claire; Guichet, Pierre-Olivier; Talmat-Amar, Yasmina; Charif, Majida; Gerber, Sylvie; Fares-Taie, Lucas; Gueguen, Naig; Halloyn, Francois; Moore, David; Amati-Bonneau, Patrizia; Manes, Gael; Hebrard, Maxime; Bocquet, Beatrice; Quiles, Melanie; Piro-Megy, Camille; Teigell, Marisa; Delettre, Cecile; Rossel, Mireille; Meunier, Isabelle; Preising, Markus; Lorenz, Birgit; Carelli, Valerio; Chinnery, Patrick F.; Yu-Wai-Man, Patrick; Kaplan, Josseline; Roubertie, Agathe; Barakat, Abdelhamid; Bonneau, Dominique; Reynier, Pascal; Rozet, Jean-Michel; Bomont, Pascale; Hamel, Christian P.; Lenaers, Guy

Publication year2015

Pages754-760

JournalAmerican Journal of Human Genetics

Volume number97

Issue number5

ISSN0002-9297

eISSN1537-6605

Open access statusGreen

DOI Linkhttps://doi.org/10.1016/j.ajhg.2015.09.012

PublisherCell Press


Abstract
Autosomal-recessive optic neuropathies are rare blinding conditions related to retinal ganglion cell (RGC) and optic-nerve degeneration, for which only mutations in TMEM126A and ACO2 are known. In four families with early-onset recessive optic neuropathy, we identified mutations in RTN4IP1, which encodes a mitochondrial ubiquinol oxydo-reductase. RTN4IP1 is a partner of RTN4 (also known as NOGO), and its ortholog Rad8 in C. elegans is involved in UV light response. Analysis of fibroblasts from affected individuals with a RTN4IP1 mutation showed loss of the altered protein, a deficit of mitochondrial respiratory complex I and IV activities, and increased susceptibility to UV light. Silencing of RTN4IP1 altered the number and morphogenesis of mouse RGC dendrites in vitro and the eye size, neuro-retinal development, and swimming behavior in zebrafish in vivo. Altogether, these data point to a pathophysiological mechanism responsible for RGC early degeneration and optic neuropathy and linking RTN4IP1 functions to mitochondrial physiology, response to UV light, and dendrite growth during eye maturation.



Citation Styles

Harvard Citation styleAngebault, C., Guichet, P., Talmat-Amar, Y., Charif, M., Gerber, S., Fares-Taie, L., et al. (2015) Recessive Mutations in RTN4IP1 Cause Isolated and Syndromic Optic Neuropathies, American Journal of Human Genetics, 97(5), pp. 754-760. https://doi.org/10.1016/j.ajhg.2015.09.012

APA Citation styleAngebault, C., Guichet, P., Talmat-Amar, Y., Charif, M., Gerber, S., Fares-Taie, L., Gueguen, N., Halloyn, F., Moore, D., Amati-Bonneau, P., Manes, G., Hebrard, M., Bocquet, B., Quiles, M., Piro-Megy, C., Teigell, M., Delettre, C., Rossel, M., Meunier, I., ...Lenaers, G. (2015). Recessive Mutations in RTN4IP1 Cause Isolated and Syndromic Optic Neuropathies. American Journal of Human Genetics. 97(5), 754-760. https://doi.org/10.1016/j.ajhg.2015.09.012



Keywords


ATROPHYMITOCHONDRIAL PROTEINNOGOOPA1

Last updated on 2025-10-06 at 10:33