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Antibiotics
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Antimicrobial Activity of Plant-Derived Products and Synthetic Derivatives, 2nd Edition
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Antimicrobial Activity of Plant-Derived Products and Synthetic Derivatives, 2nd Edition

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

Deadline for manuscript submissions: 30 November 2024 | Viewed by 2422

Special Issue Editors

Prof. Dr. Constantinos Athanassopoulos

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Guest Editor
Department of Chemistry, University of Patras, GR-26504 Patras, Greece
Interests: small organic molecules; natural products; anticancer and antibacterial agents; multitarget inhibitors; hybrids; bioconjugates
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. María Cecilia Carpinella

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Guest Editor
Fine Chemicals and Natural Products Laboratory, CIDIE CONICET—Universidad Católica de Córdoba, Córdoba, Argentina
Interests: plant-derived products; antibacterial activity; anticancer activity; enzyme inhibitors; inhibitors of MDR efflux pumps; bioguided isolation
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Carlos L. Cespedes-Acuña

E-Mail Website
Guest Editor
Department of Basic Sciences, Faculty of Sciences, Campus Fernando May-Chillan, Chillán, Chile
Interests: biopesticides; antioxidants; enzymes inhibition; neurotoxins; ecotoxicology; secondary metabolites; antifungal; antibacterial; nutraceuticals; natural anticancer
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The first volume of the Special Issue “Antimicrobial Activity of Plant-Derived Products and Synthetic Derivatives” was published in 2022. As it was a successful issue with twenty-two published papers, the editorial team encouraged us to introduce a second volume with the same topic.

This second volume intends to collect cutting-edge research and review works illustrating the potential of extracts and active principles obtained from plants, as well as their derivatives effective against microorganisms, with special attention to those with resistant phenotypes. It also aims to bring together pharmacognosists, chemists, pharmacologists, toxicologists, biologists, computer-aided drug design scientists and clinicians as a multidisciplinary team in the area of natural product use against pathogenic microorganisms.

Prof. Dr. Constantinos Athanassopoulos
Prof. Dr. María Cecilia Carpinella
Prof. Dr. Carlos L. Cespedes-Acuña
Guest Editors

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

  • plant extracts
  • plant-derived compounds
  • antibacterial activity
  • antifungal activity
  • resistant strains
  • synthetic natural product derivatives
  • multidrug resistance

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Related Special Issue

Published Papers (2 papers)

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Research

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22 pages, 1460 KiB  
Article
Synthesis of Novel Artemisinin, Ciprofloxacin, and Norfloxacin Hybrids with Potent Antiplasmodial Activity
by Georgia Vamvoukaki, Antonia I. Antoniou, Michel Baltas, Elisabeth Mouray, Sebastien Charneau, Philippe Grellier and Constantinos M. Athanassopoulos
Antibiotics 2024, 13(2), 142; https://doi.org/10.3390/antibiotics13020142 - 1 Feb 2024
Cited by 1 | Viewed by 1377
Abstract
The synthesis and antiplasmodial evaluation of new hybrids combining the pharmacophore structures of artemisinin, ciprofloxacin or norfloxacin, and 7-chloroquinoline are reported in this study. The first step for all of the syntheses is the obtainment of key piperazine esters intermediates bearing the drugs [...] Read more.
The synthesis and antiplasmodial evaluation of new hybrids combining the pharmacophore structures of artemisinin, ciprofloxacin or norfloxacin, and 7-chloroquinoline are reported in this study. The first step for all of the syntheses is the obtainment of key piperazine esters intermediates bearing the drugs ciprofloxacin and norfloxacin. Using these platforms, 18 final compounds were synthesized through a multistep procedure with overall yields ranging between 8 and 20%. All compounds were screened for their antiplasmodial activity against the chloroquine-resistant Plasmodium falciparum FcB1 strain. Compounds 20, 21, 22, and 28, bearing an artesunate fragment with ciprofloxacin, exhibited IC50 values in the range of 3.5–5.4 nM and excellent selectivity indices. Among the compounds bearing the artesunate moiety on the norfloxacin, two of them, 23 and 24, afforded IC50 values of 1.5 nM and 1.9 nM, respectively. They also showed excellent selectivity indices. The most potent compounds were also evaluated against the CQ-resistant Dd2 strain of Plasmodium falciparum, demonstrating that those compounds incorporating the artesunate fragment were the most potent. Finally, the combination of artesunate with either ciprofloxacin or norfloxacin moieties in a single molecular entity proved to substantially enhance the activity and selectivity when compared to the administration of the unconjugated counterparts artesunate/ciprofloxacin and artesunate/norfloxacin. Full article
(This article belongs to the Special Issue Antimicrobial Activity of Plant-Derived Products and Synthetic Derivatives, 2nd Edition)
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Review

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26 pages, 3224 KiB  
Review
Plant-Derived Antimicrobials and Their Crucial Role in Combating Antimicrobial Resistance
by Paola Angelini
Antibiotics 2024, 13(8), 746; https://doi.org/10.3390/antibiotics13080746 - 9 Aug 2024
Viewed by 725
Abstract
Antibiotic resistance emerged shortly after the discovery of the first antibiotic and has remained a critical public health issue ever since. Managing antibiotic resistance in clinical settings continues to be challenging, particularly with the rise of superbugs, or bacteria resistant to multiple antibiotics, [...] Read more.
Antibiotic resistance emerged shortly after the discovery of the first antibiotic and has remained a critical public health issue ever since. Managing antibiotic resistance in clinical settings continues to be challenging, particularly with the rise of superbugs, or bacteria resistant to multiple antibiotics, known as multidrug-resistant (MDR) bacteria. This rapid development of resistance has compelled researchers to continuously seek new antimicrobial agents to curb resistance, despite a shrinking pipeline of new drugs. Recently, the focus of antimicrobial discovery has shifted to plants, fungi, lichens, endophytes, and various marine sources, such as seaweeds, corals, and other microorganisms, due to their promising properties. For this review, an extensive search was conducted across multiple scientific databases, including PubMed, Elsevier, ResearchGate, Scopus, and Google Scholar, encompassing publications from 1929 to 2024. This review provides a concise overview of the mechanisms employed by bacteria to develop antibiotic resistance, followed by an in-depth exploration of plant secondary metabolites as a potential solution to MDR pathogens. In recent years, the interest in plant-based medicines has surged, driven by their advantageous properties. However, additional research is essential to fully understand the mechanisms of action and verify the safety of antimicrobial phytochemicals. Future prospects for enhancing the use of plant secondary metabolites in combating antibiotic-resistant pathogens will also be discussed. Full article
(This article belongs to the Special Issue Antimicrobial Activity of Plant-Derived Products and Synthetic Derivatives, 2nd Edition)
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