CBL/CAP Is Essential for Mitochondria Respiration Complex I Assembly and Bioenergetics Efficiency in Muscle Cells.



Aye, Cho-Cho, Hammond, Dean E, Rodriguez-Cuenca, Sergio, Doherty, Mary K, Whitfield, Phillip D, Phelan, Marie M, Yang, Chenjing, Perez-Perez, Rafael, Li, Xiaoxin, Diaz-Ramos, Angels
et al (show 6 more authors) (2023) CBL/CAP Is Essential for Mitochondria Respiration Complex I Assembly and Bioenergetics Efficiency in Muscle Cells. International journal of molecular sciences, 24 (4). p. 3399.

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Abstract

CBL is rapidly phosphorylated upon insulin receptor activation. Mice whole body CBL depletion improved insulin sensitivity and glucose clearance; however, the precise mechanisms remain unknown. We depleted either CBL or its associated protein SORBS1/CAP independently in myocytes and assessed mitochondrial function and metabolism compared to control cells. CBL- and CAP-depleted cells showed increased mitochondrial mass with greater proton leak. Mitochondrial respiratory complex I activity and assembly into respirasomes were reduced. Proteome profiling revealed alterations in proteins involved in glycolysis and fatty acid degradation. Our findings demonstrate CBL/CAP pathway couples insulin signaling to efficient mitochondrial respiratory function and metabolism in muscle.

Item Type: Article
Uncontrolled Keywords: Mitochondria, Mitochondria, Muscle, Muscle Cells, Animals, Mice, Insulin Resistance, Insulin, Cell Respiration, Energy Metabolism, Proto-Oncogene Proteins c-cbl
Divisions: Faculty of Health and Life Sciences
Faculty of Health and Life Sciences > Institute of Systems, Molecular and Integrative Biology
Depositing User: Symplectic Admin
Date Deposited: 14 Dec 2023 09:18
Last Modified: 14 Dec 2023 09:29
DOI: 10.3390/ijms24043399
Open Access URL: https://doi.org/10.3390/ijms24043399
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3177381