The Potential Biological Roles of Circular RNAs in the Immune Systems of Insects to Pathogen Invasion

Circular RNAs (circRNAs) are a newly discovered class of endogenously expressed non-coding RNAs (ncRNAs). They are highly stable, covalently closed molecules that frequently exhibit tissue-specific expression in eukaryotes. A small number of circRNAs are abundant and have been remarkably conserved t...

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Main Authors: Muhammad Nadeem Abbas, Saima Kausar, Isma Gul, Jisheng Li, Huijuan Yu, Mengyao Dong, Hongjuan Cui
Format: Article
Language:English
Published: MDPI AG 2023-04-01
Series:Genes
Subjects:
Online Access:https://www.mdpi.com/2073-4425/14/4/895
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author Muhammad Nadeem Abbas
Saima Kausar
Isma Gul
Jisheng Li
Huijuan Yu
Mengyao Dong
Hongjuan Cui
author_facet Muhammad Nadeem Abbas
Saima Kausar
Isma Gul
Jisheng Li
Huijuan Yu
Mengyao Dong
Hongjuan Cui
author_sort Muhammad Nadeem Abbas
collection DOAJ
description Circular RNAs (circRNAs) are a newly discovered class of endogenously expressed non-coding RNAs (ncRNAs). They are highly stable, covalently closed molecules that frequently exhibit tissue-specific expression in eukaryotes. A small number of circRNAs are abundant and have been remarkably conserved throughout evolution. Numerous circRNAs are known to play important biological roles by acting as microRNAs (miRNAs) or protein inhibitors (‘sponges’), by regulating the function of proteins, or by being translated themselves. CircRNAs have distinct cellular functions due to structural and production differences from mRNAs. Recent advances highlight the importance of characterizing circRNAs and their targets in a variety of insect species in order to fully understand how they contribute to the immune responses of these insects. Here, we focus on the recent advances in our understanding of the biogenesis of circRNAs, regulation of their abundance, and biological roles, such as serving as templates for translation and in the regulation of signaling pathways. We also discuss the emerging roles of circRNAs in regulating immune responses to various microbial pathogens. Furthermore, we describe the functions of circRNAs encoded by microbial pathogens that play in their hosts.
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spelling doaj.art-468574c97afe4742aef7856f54ba13422023-11-17T19:24:05ZengMDPI AGGenes2073-44252023-04-0114489510.3390/genes14040895The Potential Biological Roles of Circular RNAs in the Immune Systems of Insects to Pathogen InvasionMuhammad Nadeem Abbas0Saima Kausar1Isma Gul2Jisheng Li3Huijuan Yu4Mengyao Dong5Hongjuan Cui6State Key Laboratory of Resource Insects, Southwest University, Chongqing 400716, ChinaState Key Laboratory of Resource Insects, Southwest University, Chongqing 400716, ChinaState Key Laboratory of Resource Insects, Southwest University, Chongqing 400716, ChinaState Key Laboratory of Resource Insects, Southwest University, Chongqing 400716, ChinaState Key Laboratory of Resource Insects, Southwest University, Chongqing 400716, ChinaState Key Laboratory of Resource Insects, Southwest University, Chongqing 400716, ChinaState Key Laboratory of Resource Insects, Southwest University, Chongqing 400716, ChinaCircular RNAs (circRNAs) are a newly discovered class of endogenously expressed non-coding RNAs (ncRNAs). They are highly stable, covalently closed molecules that frequently exhibit tissue-specific expression in eukaryotes. A small number of circRNAs are abundant and have been remarkably conserved throughout evolution. Numerous circRNAs are known to play important biological roles by acting as microRNAs (miRNAs) or protein inhibitors (‘sponges’), by regulating the function of proteins, or by being translated themselves. CircRNAs have distinct cellular functions due to structural and production differences from mRNAs. Recent advances highlight the importance of characterizing circRNAs and their targets in a variety of insect species in order to fully understand how they contribute to the immune responses of these insects. Here, we focus on the recent advances in our understanding of the biogenesis of circRNAs, regulation of their abundance, and biological roles, such as serving as templates for translation and in the regulation of signaling pathways. We also discuss the emerging roles of circRNAs in regulating immune responses to various microbial pathogens. Furthermore, we describe the functions of circRNAs encoded by microbial pathogens that play in their hosts.https://www.mdpi.com/2073-4425/14/4/895noncoding RNAcircRNAsinsectsimmune responseshost–pathogen interaction
spellingShingle Muhammad Nadeem Abbas
Saima Kausar
Isma Gul
Jisheng Li
Huijuan Yu
Mengyao Dong
Hongjuan Cui
The Potential Biological Roles of Circular RNAs in the Immune Systems of Insects to Pathogen Invasion
Genes
noncoding RNA
circRNAs
insects
immune responses
host–pathogen interaction
title The Potential Biological Roles of Circular RNAs in the Immune Systems of Insects to Pathogen Invasion
title_full The Potential Biological Roles of Circular RNAs in the Immune Systems of Insects to Pathogen Invasion
title_fullStr The Potential Biological Roles of Circular RNAs in the Immune Systems of Insects to Pathogen Invasion
title_full_unstemmed The Potential Biological Roles of Circular RNAs in the Immune Systems of Insects to Pathogen Invasion
title_short The Potential Biological Roles of Circular RNAs in the Immune Systems of Insects to Pathogen Invasion
title_sort potential biological roles of circular rnas in the immune systems of insects to pathogen invasion
topic noncoding RNA
circRNAs
insects
immune responses
host–pathogen interaction
url https://www.mdpi.com/2073-4425/14/4/895
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