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Peptide Antibiotics from Microbes and Venomous Animals, 2nd Edition

A special issue of Antibiotics (ISSN 2079-6382). This special issue belongs to the section "Antimicrobial Peptides".

Deadline for manuscript submissions: 31 January 2025 | Viewed by 1730

Special Issue Editor


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Guest Editor
Institute of Neurophysiopathology (INP), Aix-Marseille University, Faculté des sciences médicales et paramédicales, 27, Bd Jean Moulin, 13005 Marseille, France
Interests: antimicrobial peptides; antibacterial; antibiotics; structure-activity relationships; bacteriocins; drug design; peptide engineering
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The first edition of the Special Issue “Peptide Antibiotics from Microbes and Venomous Animals” was published in 2020. It is a successful collection with seven excellent papers and has encouraged us to open a second edition for the same topic.

As a continuation of the first Special Issue, this second edition focuses on the antibacterial peptides from microbes and venomous animals. It comprises the structural and functional characterizations of peptide antibiotics, from their early discovery to the advanced stage of clinical trials.

Researchers and clinicians working with peptide antibiotics (and related compounds) are encouraged to submit their best manuscript(s) to this Special Issue, which discusses one of the most important fields of applied research.

Dr. Jean-Marc Sabatier
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Antibiotics is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2900 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • peptide antibiotics
  • antibacterial peptide
  • bacteria
  • microbe
  • venomous animal
  • bacteriocin
  • venom

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Published Papers (1 paper)

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Research

17 pages, 3276 KiB  
Article
The Tick Saliva Peptide HIDfsin2 TLR4-Dependently Inhibits the Tick-Borne Severe Fever with Thrombocytopenia Syndrome Virus in Mouse Macrophages
by Luyao Wang, Yishuo Liu, Rui Pang, Yiyuan Guo, Yingying Ren, Yingliang Wu and Zhijian Cao
Antibiotics 2024, 13(5), 449; https://doi.org/10.3390/antibiotics13050449 - 15 May 2024
Viewed by 1278
Abstract
Ticks transmit a variety of pathogens to their hosts by feeding on blood. The interactions and struggle between tick pathogens and hosts have evolved bilaterally. The components of tick saliva can directly or indirectly trigger host biological responses in a manner that promotes [...] Read more.
Ticks transmit a variety of pathogens to their hosts by feeding on blood. The interactions and struggle between tick pathogens and hosts have evolved bilaterally. The components of tick saliva can directly or indirectly trigger host biological responses in a manner that promotes pathogen transmission; however, host cells continuously develop strategies to combat pathogen infection and transmission. Moreover, it is still unknown how host cells develop their defense strategies against tick-borne viruses during tick sucking. Here, we found that the tick saliva peptide HIDfsin2 enhanced the antiviral innate immunity of mouse macrophages by activating the Toll-like receptor 4 (TLR4) signaling pathway, thereby restricting tick-borne severe fever with thrombocytopenia syndrome virus (SFTSV) replication. HIDfsin2 was identified to interact with lipopolysaccharide (LPS), a ligand of TLR4, and then depolymerize LPS micelles into smaller particles, effectively enhancing the activation of the nuclear factor kappa-B (NF-κB) and type I interferon (IFN-I) signaling pathways, which are downstream of TLR4. Expectedly, TLR4 knockout completely eliminated the promotion effect of HIDfsin2 on NF-κB and type I interferon activation. Moreover, HIDfsin2 enhanced SFTSV replication in TLR4-knockout mouse macrophages, which is consistent with our recent report that HIDfsin2 hijacked p38 mitogen-activated protein kinase (MAPK) to promote the replication of tick-borne SFTSV in A549 and Huh7 cells (human cell lines) with low expression of TLR4. Together, these results provide new insights into the innate immune mechanism of host cells following tick bites. Our study also shows a rare molecular event relating to the mutual antagonism between tick-borne SFTSV and host cells mediated by the tick saliva peptide HIDfsin2 at the tick–host–virus interface. Full article
(This article belongs to the Special Issue Peptide Antibiotics from Microbes and Venomous Animals, 2nd Edition)
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