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Efficiency and Target Derepression of Anti-miR-92a: Results of a First in Human Study.
- Source :
-
Nucleic Acid Therapeutics . Dec2020, Vol. 30 Issue 6, p335-345. 11p. - Publication Year :
- 2020
-
Abstract
- MicroRNA (miRNA) inhibition is a promising therapeutic strategy in several disease indications. MRG-110 is a locked nucleic acid-based antisense oligonucleotide that targets miR-92a-3p and experimentally was shown to have documented therapeutic effects on cardiovascular disease and wound healing. To gain first insights into the activity of anti-miR-92a in humans, we investigated miR-92a-3p expression in several blood compartments and assessed the effect of MRG-110 on target derepression. Healthy adults were randomly assigned (5:2) to receive a single intravenous dose of MRG-110 or placebo in one of seven sequential ascending intravenous dose cohorts ranging from 0.01 to 1.5 mg/kg body weight. MiR-92a-3p whole blood levels were time and dose dependently decreased with half-maximal inhibition of 0.27 and 0.31 mg/kg at 24 and 72 h after dosing, respectively. In the high-dose groups, >95% inhibition was detected at 24–72 h postinfusion and significant inhibition was observed for 2 weeks. Similar inhibitory effects were detected in isolated CD31+ cells, and miR-92a-3p expression was also inhibited in extracellular vesicles in the high-dose group. Target derepression was measured in whole blood and showed that ITGA5 and CD93 were increased at a dose of 1.5 mg/kg. Single-cell RNA sequencing of peripheral blood cells revealed a cell type-specific derepression of miR-92a targets. Together this study demonstrates that systemic infusion of anti-miR-92a efficiently inhibits miR-92a in the peripheral blood compartment and derepresses miR-92a targets in humans. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 21593337
- Volume :
- 30
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Nucleic Acid Therapeutics
- Publication Type :
- Academic Journal
- Accession number :
- 148246918
- Full Text :
- https://doi.org/10.1089/nat.2020.0871