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Jacobs, H.T.* ; Szibor, M.* ; Rathkolb, B. ; da Silva Buttkus, P. ; Aguilar-Pimentel, J.A. ; Amarie, O.V. ; Becker, L. ; Calzada-Wack, J. ; Dragano, N.R.V. ; Garrett, L. ; Gerlini, R. ; Hölter, S.M. ; Klein-Rodewald, T. ; Kraiger, M. ; Leuchtenberger, S. ; Marschall, S. ; Östereicher, M.A. ; Pfannes, K. ; Sanz-Moreno, A. ; Seisenberger, C. ; Spielmann, N. ; Stoeger, C. ; Wurst, W. ; Fuchs, H. ; Hrabě de Angelis, M. ; Gailus-Durner, V.

AOX delays the onset of the lethal phenotype in a mouse model of Uqcrh (complex III) disease.

Biochim. Biophys. Acta-Mol. Basis Dis. 1869:166760 (2023)
Verlagsversion DOI PMC
Open Access Hybrid
Creative Commons Lizenzvertrag
The alternative oxidase, AOX, provides a by-pass of the cytochrome segment of the mitochondrial respiratory chain when the chain is unavailable. AOX is absent from mammals, but AOX from Ciona intestinalis is benign when expressed in mice. Although non-protonmotive, so does not contribute directly to ATP production, it has been shown to modify and in some cases rescue phenotypes of respiratory-chain disease models. Here we studied the effect of C. intestinalis AOX on mice engineered to express a disease-equivalent mutant of Uqcrh, encoding the hinge subunit of mitochondrial respiratory complex III, which results in a complex metabolic phenotype beginning at 4-5 weeks, rapidly progressing to lethality within a further 6-7 weeks. AOX expression delayed the onset of this phenotype by several weeks, but provided no long-term benefit. We discuss the significance of this finding in light of the known and hypothesized effects of AOX on metabolism, redox homeostasis, oxidative stress and cell signaling. Although not a panacea, the ability of AOX to mitigate disease onset and progression means it could be useful in treatment.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Alternative Oxidase ; Complex Iii ; Growth Impairment ; Hyperglycemia ; Insulin Sensitivity ; Mitochondrial Disease; Cytochrome-c-oxidase; Alternative-oxidase; Respiratory-chain; Bc(1) Complex; Mitochondria; Expression; Protein; Apoptosis; Mutation; Defects
Sprache englisch
Veröffentlichungsjahr 2023
HGF-Berichtsjahr 2023
ISSN (print) / ISBN 0925-4439
e-ISSN 1878-2434
Zeitschrift Biochimica et Biophysica Acta - Molecular Basis of Disease
Quellenangaben Band: 1869, Heft: 7, Seiten: , Artikelnummer: 166760 Supplement: ,
Verlag Elsevier
Verlagsort Radarweg 29, 1043 Nx Amsterdam, Netherlands
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Experimental Genetics (IEG)
Institute of Developmental Genetics (IDG)
POF Topic(s) 30201 - Metabolic Health
90000 - German Center for Diabetes Research
30204 - Cell Programming and Repair
Forschungsfeld(er) Genetics and Epidemiology
PSP-Element(e) G-500600-001
G-500692-001
G-501900-065
G-500500-001
Förderungen European Research Council (ERC)
Academy of Finland
European Research Council
German Center for Diabetes Research (DZD)
German Federal Ministry of Education and Research
DOI 10.1016/j.bbadis.2023.166760
WOS ID 001021003400001
Scopus ID 85160059802
PubMed ID 37230398
Erfassungsdatum 2023-10-06
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