NF-κB pathway controls mitochondrial dynamics
Identifieur interne : 000633 ( Main/Exploration ); précédent : 000632; suivant : 000634NF-κB pathway controls mitochondrial dynamics
Auteurs : M. Laforge [France] ; V. Rodrigues [France, Portugal] ; R. Silvestre [Portugal] ; C. Gautier [France] ; R. Weil [France] ; O. Corti [France] ; J. Estaquier [France, Canada]Source :
- Cell Death and Differentiation [ 1350-9047 ] ; 2015.
Abstract
The Optic atrophy 1 protein (OPA1) is a key element in the dynamics and morphology of mitochondria. We demonstrated that the absence of I
Url:
DOI: 10.1038/cdd.2015.42
PubMed: 26024391
PubMed Central: 4815975
Affiliations:
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Le document en format XML
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B pathway controls mitochondrial dynamics</title>
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B pathway controls mitochondrial dynamics</title>
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<front><div type="abstract" xml:lang="en"><p>The Optic atrophy 1 protein (OPA1) is a key element in the dynamics and morphology of mitochondria. We demonstrated that the absence of I<italic>κ</italic>
B kinase-α, which is a key element of the nonclassical NF-κB pathway, has an impact on the mitochondrial network morphology and OPA1 expression. In contrast, the absence of NF-<italic>κ</italic>
B essential modulator (NEMO) or I<italic>κ</italic>
B kinase-β, both of which are essential for the canonical NF-<italic>κ</italic>
B pathway, has no impact on mitochondrial dynamics. Whereas Parkin has been reported to positively regulate the expression of OPA1 through NEMO, herein we found that <italic>PARK2</italic>
overexpression did not modify the expression of OPA1. <italic>PARK2</italic>
expression reduced the levels of Bax, and it prevented stress-induced cell death only in Bak-deficient mouse embryonic fibroblast cells. Collectively, our results point out a role of the nonclassical NF-<italic>κ</italic>
B pathway in the regulation of mitochondrial dynamics and OPA1 expression.</p>
</div>
</front>
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