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Antisense Oligonucleotides: Versatile Tools with Broad Applications

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Biology".

Deadline for manuscript submissions: 31 October 2025 | Viewed by 682

Special Issue Editor


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Guest Editor
Personalised Medicine Centre, Health Futures Institute, Murdoch University, Murdoch, WA 6150, Australia
Interests: nucleic acid; antisense oligonucleotide; splice switching; exon skipping; RNase H; steric blocking

Special Issue Information

Dear Colleagues,

Antisense oligonucleotide (ASO or AO) is a versatile tool that has been widely used as a research tool in the discovery and validation of disease-related genes as well as a therapeutic entity targeting the genes. ASOs are characterized by diversified mechanisms of actions, including occupancy-mediated degradation (RNase H-dependent RNA degradation) and occupancy-only mechanisms such as splice switching and steric blocking. Due to the diversity of mechanisms of actions, ASOs are capable of either reducing the expression of a target gene, or restoring the expression of a defective gene, leading to a broad application of ASO technology. In fact, more than ten ASO drugs have been approved by the US FDA for the therapy of several human diseases. Among these commercialized ASOs, both the RNase H-dependent mechanism and splice modulation (exon skipping and exon inclusion) have been applied. In addition to modulating gene expression in mammalian cells, ASOs have also been studied as antibacterial agents. Due to its universality, ASOs could also be developed as pesticides, fungicides, and nematicides that contribute to plant protection.

This Special Issue is initiated to promote the advancements of the ASO field in all aspects of therapeutic or pesticide developments and chemical optimization, and it provides an opportunity to share your quality work in the form of authentic research and review articles.

Dr. Suxiang Chen
Guest Editor

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Keywords

  • antisense oligonucleotide
  • RNase H
  • splice switching
  • exon skipping
  • therapeutics
  • pesticide

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Published Papers (1 paper)

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12 pages, 757 KB  
Brief Report
DNA-Programmable Oligonucleotide Insecticide Eriola-11 Targets Mitochondrial 16S rRNA and Exhibits Strong Insecticidal Activity Against Woolly Apple Aphid (Eriosoma lanigerum) Hausmann
by Vol Oberemok, Kate Laikova, Oksana Andreeva, Anastasia Dmitrienko, Tatiana Rybareva, Jamin Ali and Nikita Gal’chinsky
Int. J. Mol. Sci. 2025, 26(15), 7486; https://doi.org/10.3390/ijms26157486 - 2 Aug 2025
Viewed by 479
Abstract
The potent and selective ‘genetic zipper’ method for insect pest control consists of three essential components: an antisense DNA (the finder), its complementary mature rRNA or pre-rRNA of the pest (the target), and the host’s endogenous DNA-guided rRNase (the degrader). Although this approach [...] Read more.
The potent and selective ‘genetic zipper’ method for insect pest control consists of three essential components: an antisense DNA (the finder), its complementary mature rRNA or pre-rRNA of the pest (the target), and the host’s endogenous DNA-guided rRNase (the degrader). Although this approach has been validated, the spectrum of effective rRNA targets remains insufficiently explored. In this study, we report for the first time the insecticidal efficacy of a novel oligonucleotide insecticide, Eriola-11, which targets the mitochondrial 16S rRNA of the woolly apple aphid Eriosoma lanigerum Hausmann. We hypothesized that the antisense-mediated silencing of mitochondrial rRNA would impair aphid viability and lead to physiological disruptions associated with mitochondrial energy metabolism. Eriola-11 was applied either once or twice (with a 24 h interval) to aphid-infested plants, and aphid mortality was recorded over 14 days. Mitochondrial 16S rRNA expression levels were quantified using molecular assays, and the degradation kinetics of Eriola-11 were assessed in aphid tissue homogenates. Results showed significant insecticidal activity, with 67.55% mortality after a single treatment and 83.35% after two treatments. Treated aphids exhibited the loss of their characteristic white woolly wax covering, and mitochondrial 16S rRNA expression was reduced 0.66-fold relative to the control. Additionally, Eriola-11 was fully degraded by aphid DNases from tissue homogenates within 3 h, highlighting its rapid biodegradability. These findings establish mitochondrial 16S rRNA as a viable target for antisense insecticides and expand the catalogue of potential rRNA-based targets, offering a promising avenue for environmentally sustainable pest control strategies. Full article
(This article belongs to the Special Issue Antisense Oligonucleotides: Versatile Tools with Broad Applications)
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