Insect Antimicrobial Peptides as Guardians of Immunity and Beyond: A Review

Antimicrobial peptides (AMPs), as immune effectors synthesized by a variety of organisms, not only constitute a robust defense mechanism against a broad spectrum of pathogens in the host but also show promising applications as effective antimicrobial agents. Notably, insects are significant reservoi...

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Main Authors: Lizhen Zhou, Guanliang Meng, Ling Zhu, Li Ma, Kangkang Chen
Format: Article
Language:English
Published: MDPI AG 2024-03-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/25/7/3835
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author Lizhen Zhou
Guanliang Meng
Ling Zhu
Li Ma
Kangkang Chen
author_facet Lizhen Zhou
Guanliang Meng
Ling Zhu
Li Ma
Kangkang Chen
author_sort Lizhen Zhou
collection DOAJ
description Antimicrobial peptides (AMPs), as immune effectors synthesized by a variety of organisms, not only constitute a robust defense mechanism against a broad spectrum of pathogens in the host but also show promising applications as effective antimicrobial agents. Notably, insects are significant reservoirs of natural AMPs. However, the complex array of variations in types, quantities, antimicrobial activities, and production pathways of AMPs, as well as evolution of AMPs across insect species, presents a significant challenge for immunity system understanding and AMP applications. This review covers insect AMP discoveries, classification, common properties, and mechanisms of action. Additionally, the types, quantities, and activities of immune-related AMPs in each model insect are also summarized. We conducted the first comprehensive investigation into the diversity, distribution, and evolution of 20 types of AMPs in model insects, employing phylogenetic analysis to describe their evolutionary relationships and shed light on conserved and distinctive AMP families. Furthermore, we summarize the regulatory pathways of AMP production through classical signaling pathways and additional pathways associated with Nitric Oxide, insulin-like signaling, and hormones. This review advances our understanding of AMPs as guardians in insect immunity systems and unlocks a gateway to insect AMP resources, facilitating the use of AMPs to address food safety concerns.
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spelling doaj.art-1d29ec2e6b2c4c07808648128a50ddae2024-04-12T13:19:53ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672024-03-01257383510.3390/ijms25073835Insect Antimicrobial Peptides as Guardians of Immunity and Beyond: A ReviewLizhen Zhou0Guanliang Meng1Ling Zhu2Li Ma3Kangkang Chen4Department of Plant Protection, College of Plant Protection, Yangzhou University, Yangzhou 225009, ChinaZoological Research Museum Alexander Koenig, Leibniz Institute for the Analysis of Biodiversity Change, 53113 Bonn, GermanySchool of Food Science and Technology, Jiangnan University, Wuxi 214122, ChinaCollege of Plant Protection, Shanxi Agricultural University, Taigu 030810, ChinaDepartment of Plant Protection, College of Plant Protection, Yangzhou University, Yangzhou 225009, ChinaAntimicrobial peptides (AMPs), as immune effectors synthesized by a variety of organisms, not only constitute a robust defense mechanism against a broad spectrum of pathogens in the host but also show promising applications as effective antimicrobial agents. Notably, insects are significant reservoirs of natural AMPs. However, the complex array of variations in types, quantities, antimicrobial activities, and production pathways of AMPs, as well as evolution of AMPs across insect species, presents a significant challenge for immunity system understanding and AMP applications. This review covers insect AMP discoveries, classification, common properties, and mechanisms of action. Additionally, the types, quantities, and activities of immune-related AMPs in each model insect are also summarized. We conducted the first comprehensive investigation into the diversity, distribution, and evolution of 20 types of AMPs in model insects, employing phylogenetic analysis to describe their evolutionary relationships and shed light on conserved and distinctive AMP families. Furthermore, we summarize the regulatory pathways of AMP production through classical signaling pathways and additional pathways associated with Nitric Oxide, insulin-like signaling, and hormones. This review advances our understanding of AMPs as guardians in insect immunity systems and unlocks a gateway to insect AMP resources, facilitating the use of AMPs to address food safety concerns.https://www.mdpi.com/1422-0067/25/7/3835antimicrobial agentsantimicrobial peptide evolutionantimicrobial peptide regulationinsect
spellingShingle Lizhen Zhou
Guanliang Meng
Ling Zhu
Li Ma
Kangkang Chen
Insect Antimicrobial Peptides as Guardians of Immunity and Beyond: A Review
International Journal of Molecular Sciences
antimicrobial agents
antimicrobial peptide evolution
antimicrobial peptide regulation
insect
title Insect Antimicrobial Peptides as Guardians of Immunity and Beyond: A Review
title_full Insect Antimicrobial Peptides as Guardians of Immunity and Beyond: A Review
title_fullStr Insect Antimicrobial Peptides as Guardians of Immunity and Beyond: A Review
title_full_unstemmed Insect Antimicrobial Peptides as Guardians of Immunity and Beyond: A Review
title_short Insect Antimicrobial Peptides as Guardians of Immunity and Beyond: A Review
title_sort insect antimicrobial peptides as guardians of immunity and beyond a review
topic antimicrobial agents
antimicrobial peptide evolution
antimicrobial peptide regulation
insect
url https://www.mdpi.com/1422-0067/25/7/3835
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AT guanliangmeng insectantimicrobialpeptidesasguardiansofimmunityandbeyondareview
AT lingzhu insectantimicrobialpeptidesasguardiansofimmunityandbeyondareview
AT lima insectantimicrobialpeptidesasguardiansofimmunityandbeyondareview
AT kangkangchen insectantimicrobialpeptidesasguardiansofimmunityandbeyondareview