Efficiency and Target Derepression of Anti-miR-92a: Results of a First in Human Study.
Nucleic Acid Ther
; 30(6): 335-345, 2020 12.
Article
en En
| MEDLINE
| ID: mdl-32707001
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 (52) 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.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Oligonucleótidos
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Glicoproteínas de Membrana
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Receptores de Complemento
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Enfermedades Cardiovasculares
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Integrinas
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MicroARNs
Tipo de estudio:
Clinical_trials
Límite:
Adolescent
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Adult
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
Nucleic Acid Ther
Año:
2020
Tipo del documento:
Article
País de afiliación:
Alemania