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Published on: June 15, 2018
MicroRNAs in lipid metabolism
Carlos Fernández-Hernando1, Yajaira Suárez, Katey J Rayner
1Department of Medicine, New York University School of Medicine, New York, New York, USA. carlos.fernandez-hernando@nyumc.org
Current Opinion in Lipidology
|December 24, 2010
Summary
MicroRNAs (miRNAs) are key regulators of lipid metabolism, impacting cholesterol and fatty acid processing. These findings offer new therapeutic targets for lipid disorders.
Area of Science:
- Biochemistry
- Molecular Biology
- Genetics
Background:
- MicroRNAs (miRNAs) are established regulators of cellular processes like apoptosis and differentiation.
- Their role in lipid metabolism, particularly cholesterol and fatty acid regulation, is an emerging area of research.
Purpose of the Study:
- To review the critical role of miRNAs in regulating lipid metabolism.
- To summarize recent findings on miRNA involvement in cholesterol homeostasis and fatty acid oxidation.
Main Methods:
- Literature review of studies investigating miRNA regulation of lipid metabolism.
- Analysis of experimental data demonstrating miRNA targets in cholesterol and fatty acid pathways.
Main Results:
- MicroRNAs act as potent post-transcriptional regulators of genes involved in lipid metabolism.
- miR-33 was identified to regulate cholesterol efflux and HDL biogenesis by downregulating ABCA1 and ABCG1.
- miR-33 also inhibits fatty acid beta-oxidation by targeting CPT1a, CROT, and HADHB.
- Other miRNAs (miR-122, miR-370, miR-335, miR-378/378*, miR-27, miR-125a-5p) are implicated in cholesterol, fatty acid, and lipogenesis regulation.
Conclusions:
- MicroRNAs play significant roles in the regulation of cholesterol and fatty acid metabolism.
- These discoveries may lead to novel therapeutic strategies for treating dyslipidemias.
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