Synthesis of Novel MicroRNA-30c Analogs to Reduce Apolipoprotein B Secretion in Human Hepatoma Cells.
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AuthorZheng, Ya Ying
Yadav, Pradeep Kumar
Hussain, Mahmood M
MetadataShow full item record
AbstractAtherosclerosis, a condition characterized by thickening of the arteries due to lipid deposition, is the major contributor to and hallmark of cardiovascular disease. Although great progress has been made in lowering the lipid plaques in patients, the conventional therapies fail to address the needs of those that are intolerant or non-responsive to the treatment. Therefore, additional novel therapeutic approaches are warranted. We have previously shown that increasing the cellular amounts of microRNA-30c (miR-30c) with the aid of viral vectors or liposomes can successfully reduce plasma cholesterol and atherosclerosis in mice. To avoid the use of viruses and liposomes, we have developed new methods to synthesize novel miR-30c analogs with increasing potency and efficacy, including 2'-O-methyl (2'OMe), 2'-fluoro (2'F), pseudouridine (ᴪ), phosphorothioate (PS), and N-acetylgalactosamine (GalNAc). The discovery of these modifications has profoundly impacted the modern RNA therapeutics, as evidenced by their increased nuclease stability and reduction in immune responses. We show that modifications on the passenger strand of miR-30c not only stabilize the duplex but also aid in a more readily uptake by the cells without the aid of viral vectors or lipid emulsions. After uptake, the analogs with PS linkages and GalNAc-modified ribonucleotides significantly reduce the secretion of apolipoprotein B (ApoB) without affecting apolipoprotein A1 (ApoA1) in human hepatoma Huh-7 cells. We envision an enormous potential for these modified miR-30c analogs in therapeutic intervention for treating cardiovascular diseases. J Biol Chem (2021), DOI: 10.1016/j.jbc.2022.101813.
CitationZheng YY, Haruehanroengra P, Yadav PK, Irani S, Mao S, Wang T, Hussain MM, Sheng J. Synthesis of Novel MicroRNA-30c Analogs to Reduce Apolipoprotein B Secretion in Human Hepatoma Cells. Bio Protoc. 2022 Dec 20;12(24):e4574. doi: 10.21769/BioProtoc.4574. PMID: 36618093; PMCID: PMC9797360.
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Except where otherwise noted, this item's license is described as Copyright © 2022 The Authors; exclusive licensee Bio-protocol LLC.
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