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Panella R, Petri A, Desai BN, Fagoonee S, Cotton CA, Nguyen PK, Lundin EM, Wagshal A, Wang DZ, Näär AM, Vlachos IS, Maratos-Flier E, Altruda F, Kauppinen S, Paolo Pandolfi P. MicroRNA-22 Is a Key Regulator of Lipid and Metabolic Homeostasis. Int J Mol Sci 2023; 24:12870. [PMID: 37629051 PMCID: PMC10454516 DOI: 10.3390/ijms241612870] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 07/25/2023] [Accepted: 07/28/2023] [Indexed: 08/27/2023] Open
Abstract
Obesity is a growing public health problem associated with increased risk of type 2 diabetes, cardiovascular disease, nonalcoholic fatty liver disease (NAFLD) and cancer. Here, we identify microRNA-22 (miR-22) as an essential rheostat involved in the control of lipid and energy homeostasis as well as the onset and maintenance of obesity. We demonstrate through knockout and transgenic mouse models that miR-22 loss-of-function protects against obesity and hepatic steatosis, while its overexpression promotes both phenotypes even when mice are fed a regular chow diet. Mechanistically, we show that miR-22 controls multiple pathways related to lipid biogenesis and differentiation. Importantly, genetic ablation of miR-22 favors metabolic rewiring towards higher energy expenditure and browning of white adipose tissue, suggesting that modulation of miR-22 could represent a viable therapeutic strategy for treatment of obesity and other metabolic disorders.
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Affiliation(s)
- Riccardo Panella
- Center for Genomic Medicine, Desert Research Institute, Reno, NV 89512, USA; (R.P.)
- Cancer Research Institute, Beth Israel Deaconess Cancer Center, Departments of Medicine and Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
- Center for RNA Medicine, Department of Clinical Medicine, Aalborg University, DK-2450 Copenhagen SV, Denmark
| | - Andreas Petri
- Center for RNA Medicine, Department of Clinical Medicine, Aalborg University, DK-2450 Copenhagen SV, Denmark
| | - Bhavna N. Desai
- Division of Endocrinology and Metabolism, Beth Israel Deaconess Medical Center, 330 Brookline Ave, Center for Life Sciences, Boston, MA 02215, USA
| | - Sharmila Fagoonee
- Institute of Biostructure and Bioimaging (CNR) c/o Molecular Biotechnology Center, 10126 Turin, Italy
| | - Cody A. Cotton
- Center for Genomic Medicine, Desert Research Institute, Reno, NV 89512, USA; (R.P.)
| | - Piercen K. Nguyen
- Center for Genomic Medicine, Desert Research Institute, Reno, NV 89512, USA; (R.P.)
| | - Eric M. Lundin
- Center for Genomic Medicine, Desert Research Institute, Reno, NV 89512, USA; (R.P.)
| | - Alexandre Wagshal
- Massachusetts General Hospital Cancer Center, Department of Cell Biology, Harvard Medical School, Boston, MA 02215, USA
| | - Da-Zhi Wang
- Boston Children’s Hospital, Boston, MA 02215, USA
| | - Anders M. Näär
- Massachusetts General Hospital Cancer Center, Department of Cell Biology, Harvard Medical School, Boston, MA 02215, USA
| | - Ioannis S. Vlachos
- Cancer Research Institute, Harvard Medical School Initiative for RNA Medicine, Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02115, USA
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Eleftheria Maratos-Flier
- Division of Endocrinology and Metabolism, Beth Israel Deaconess Medical Center, 330 Brookline Ave, Center for Life Sciences, Boston, MA 02215, USA
| | - Fiorella Altruda
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Turin, 10126 Turin, Italy
| | - Sakari Kauppinen
- Center for RNA Medicine, Department of Clinical Medicine, Aalborg University, DK-2450 Copenhagen SV, Denmark
| | - Pier Paolo Pandolfi
- Cancer Research Institute, Beth Israel Deaconess Cancer Center, Departments of Medicine and Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Turin, 10126 Turin, Italy
- Renown Institute for Cancer, Nevada System of Higher Education, Reno, NV 89502, USA
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