Current State and Future Directions of RNA Interference Research

A special issue of Genes (ISSN 2073-4425). This special issue belongs to the section "RNA".

Deadline for manuscript submissions: closed (15 April 2022) | Viewed by 1887

Special Issue Editor


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Guest Editor
Department of Medical Biotechnology, Institute of Bioorganic Chemistry Polish Academy of Sciences, 61-704 Poznan, Poland
Interests: polyglutamine diseases; Huntington’s disease; triplet repeat tracts; RNA interference; RNA biology

Special Issue Information

Dear Colleagues, 

It has been 15 years since the Nobel Prize was awarded to Andrew Fire and Craig Mello for their discovery of RNA interference (RNAi), published 25 years ago. This mechanism of gene silencing by double-stranded RNAs is crucial for the regulation of gene expression in cells and has become a powerful tool in therapeutic approaches. Two types of short non-coding RNAs (ncRNAs) are major inducers of RNAi: short-interfering RNAs (siRNAs) and microRNAs (miRNAs). The essence of gene regulation by siRNAs and miRNAs is their interaction with specific mRNAs based on sequence complementarity. Many years of investigation on siRNAs and miRNAs has provided information on their mechanism of action, the proteins involved, and on the identification of specific molecules and their role in developmental and pathogenic pathways. Moreover, many examples show the great diversity and flexibility of RNAi mechanisms. Recent findings indicate a greater role for short ncRNAs than previously assumed, for example, regarding their contribution to the overall network of interactions with other ncRNAs, such as long non-coding RNAs (lincRNAs) or circular RNAs (circRNAs). Importantly, the field of RNAi-based therapies continues to evolve and leads to many clinical ongoing trials. miRNAs are now considered not only as therapeutics but also as very promising biomarkers and therapeutic targets in many diseases.

The purpose of this Special Issue is to highlight recent advances and identify new directions in RNA interference research. Various studies in all areas of the field of RNA interference are welcome.

Dr. Agnieszka Fiszer
Guest Editor

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Published Papers (1 paper)

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Research

12 pages, 2528 KiB  
Article
RNAi Mediated Gene Silencing of Detoxification Related Genes in the Ectropis oblique
by Cui Peng, Heng Yin, Yang Liu, Xin-Fang Mao and Zhong-Yuan Liu
Genes 2022, 13(7), 1141; https://doi.org/10.3390/genes13071141 - 24 Jun 2022
Cited by 3 | Viewed by 1605
Abstract
Ectropis oblique is one of the main pests that feed on tea leaves. At present, the main control method is chemical control, but the long-term use of insecticides has been related to the development of insect resistance. One of the resistance mechanisms is [...] Read more.
Ectropis oblique is one of the main pests that feed on tea leaves. At present, the main control method is chemical control, but the long-term use of insecticides has been related to the development of insect resistance. One of the resistance mechanisms is the upregulation of relevant detoxification enzymes for defense. In this study, four genes with increased expression were screened from the gene sequences annotated from the transcriptome data of deltamethrin-treated larvae of E. oblique, which are acid phosphatase EoACP138, and cytochrome P450 EoCYP316, carboxylesterase EoCarE592 and acetylcholine esterase EoAchE989, respectively. The fourth instar larvae of E. oblique were stimulated by deltamethrin, chlorpyrifos and fenpropathrin respectively, and the expression levels of the genes were detected by qRT-PCR. The result showed that all four genes’ expression had significantly increased under the stimulation of three insecticides. RNAi technology was used to silence the expression of genes of EoACP138, EoCYP316, EoCarE592 and EoAchE989 in the fourth instar larvae of E. oblique. The change in the expression levels of the above genes in the larvae treated with dsRNA and stimulated with pesticides was determined by qRT-PCR. The target genes have been effectively silenced after feeding on dsRNA and higher sensitivity with higher mortality to pesticides was observed in the larvae interfered with dsRNA. The above genes are related to the detoxification and metabolism of resistance of E. oblique, which lays a foundation for further study on the mechanism of insecticide resistance in E. oblique. Full article
(This article belongs to the Special Issue Current State and Future Directions of RNA Interference Research)
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