Article (Scientific journals)
ER-mitochondria cross-talk is regulated by the Ca(2+) sensor NCS1 and is impaired in Wolfram syndrome.
Angebault, Claire; Fauconnier, Jeremy; Patergnani, Simone et al.
2018In Science Signaling, 11 (553)
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Abstract :
[en] Communication between the endoplasmic reticulum (ER) and mitochondria plays a pivotal role in Ca(2+) signaling, energy metabolism, and cell survival. Dysfunction in this cross-talk leads to metabolic and neurodegenerative diseases. Wolfram syndrome is a fatal neurodegenerative disease caused by mutations in the ER-resident protein WFS1. Here, we showed that WFS1 formed a complex with neuronal calcium sensor 1 (NCS1) and inositol 1,4,5-trisphosphate receptor (IP3R) to promote Ca(2+) transfer between the ER and mitochondria. In addition, we found that NCS1 abundance was reduced in WFS1-null patient fibroblasts, which showed reduced ER-mitochondria interactions and Ca(2+) exchange. Moreover, in WFS1-deficient cells, NCS1 overexpression not only restored ER-mitochondria interactions and Ca(2+) transfer but also rescued mitochondrial dysfunction. Our results describe a key role of NCS1 in ER-mitochondria cross-talk, uncover a pathogenic mechanism for Wolfram syndrome, and potentially reveal insights into the pathogenesis of other neurodegenerative diseases.
Disciplines :
Biochemistry, biophysics & molecular biology
Author, co-author :
Angebault, Claire
Fauconnier, Jeremy
Patergnani, Simone
Rieusset, Jennifer
Danese, Alberto
Affortit, Corentin A.
Jagodzinska, Jolanta
Megy, Camille
Quiles, Melanie
Cazevieille, Chantal
Korchagina, Julia
Bonnet-Wersinger, Delphine
Milea, Dan
Hamel, Christian
Pinton, Paolo
Thiry, Marc  ;  Université de Liège - ULiège > Département des sciences de la vie > GIGA-R : Biologie cellulaire
Lacampagne, Alain
Delprat, Benjamin
Delettre, Cecile
More authors (9 more) Less
Language :
English
Title :
ER-mitochondria cross-talk is regulated by the Ca(2+) sensor NCS1 and is impaired in Wolfram syndrome.
Publication date :
2018
Journal title :
Science Signaling
ISSN :
1945-0877
eISSN :
1937-9145
Publisher :
American Association for the Advancement of Science, Washington, United States - District of Columbia
Volume :
11
Issue :
553
Peer reviewed :
Peer Reviewed verified by ORBi
Commentary :
Copyright (c) 2018 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works.
Available on ORBi :
since 16 November 2018

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