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.
| Original language | English |
|---|---|
| Article number | 3399 |
| Number of pages | 17 |
| Journal | International Journal of Molecular Sciences |
| Volume | 24 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - Feb 2023 |
| MoE publication type | A1 Journal article-refereed |
Funding
This work was supported by the University of Liverpool, a research grant from the European Commission (Framework 7 grant HEALTH-F4-2008-223450 to S.M., A.Z., A.V.-P., M.O.), by National Institute of Health RO1 grant GM105781 (to C.U.) and by Instituto de Salud Carlos III-MINECO/European FEDER Funds grant PI17-00048 (to C.U.). M.K.D. and P.D.W. acknowledge funding from European Regional Development Fund, Scottish Funding Council and Highlands and Islands Enterprise.
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
-
SDG 3 Good Health and Well-being
Keywords
- CBL
- glucose transport
- insulin resistance
- insulin signalling
- mitochondria
- SORBS1
- Mitochondria, Muscle/metabolism
- Muscle Cells/metabolism
- Mitochondria/metabolism
- Insulin Resistance
- Animals
- Proto-Oncogene Proteins c-cbl/metabolism
- Energy Metabolism
- Cell Respiration
- Insulin/metabolism
- Mice
Fingerprint
Dive into the research topics of 'CBL/CAP Is Essential for Mitochondria Respiration Complex I Assembly and Bioenergetics Efficiency in Muscle Cells'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver