Multidrug-Resistant Fungi: New Strategies for Diagnosis and Treatment

A special issue of Journal of Fungi (ISSN 2309-608X). This special issue belongs to the section "Fungal Pathogenesis and Disease Control".

Deadline for manuscript submissions: 20 June 2024 | Viewed by 452

Special Issue Editor


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Guest Editor
Health Sciences Research Laboratory, Universidade Federal da Grande Dourados, Dourados 79825-070, MS, Brazil
Interests: antifungal therapy; drug repurposing; dug susceptibility; Candida auris

Special Issue Information

Dear Colleagues,

In light of the scenario wherein advancements in medical science have multiplied, the prevalence of fungal infections continues to annually escalate, while therapeutic interventions available in the early years of the third millennium remain notably constrained. The emergence of concerns regarding the rising incidence of fungal infections traces back to the first few decades of the 20th century, attributed to diverse environmental factors and anthropogenic pressures. Consequently, initial endeavours to address these infections through therapeutic means have been initiated.

Despite pathogenic fungi standing as one of the most ancient groups of microorganisms, they have been excluded from any stable taxonomic system for an extended period. Given the considerable taxonomic variations among closely related fungal pathogens and the criticality of species-level identification, an ongoing debate surrounds the selection of a gold standard for fungal routine identification. Thus, the reliable demarcation of fungal species boundaries, and consequently accurate species identification, necessitates a multidimensional approach to mitigate the potential for diagnostic errors. The significance of accurately identifying the etiological agent of mycosis becomes most evident in cases of treatment failure. Nevertheless, the inefficacy of therapy in fungal infections may stem from various factors beyond misdiagnosis.

Although interest in clinical antifungal therapy has grown over time, the pace of antifungal drug development has been notably slow. Despite the existence of several classes of antifungal drugs for clinical use, their spectrum of accessible cellular targets remains limited. Another challenge arising from the widespread use of antifungal drugs, linked to overlapping mechanisms of action and identical cellular targets, is the emergence of multidrug-resistant (MDR) phenotypes in an expanding array of pathogenic fungi. Consequently, in vitro assessments of antifungal drugs and the elucidation of mechanisms contributing to this emergent resistance constitute current imperatives within the mycological community.

In the context of the increasing amount of studies dedicated to the diagnostics and therapy of fungal infections, this Special Issue is inaugurated to serve as a comprehensive repository, showcasing the latest research across all facets of clinical and veterinary diagnostics and therapy for fungal infectious diseases.

Dr. Luana L. Rossato
Guest Editor

Manuscript Submission Information

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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. Journal of Fungi 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 2600 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

  • antifungal therapy
  • drug repurposing
  • dug susceptibility
  • emerging yeast
  • natural antimycotics
  • fungal infection
  • molds
  • mechanism of action
  • invasive fungal infections
  • MALDI-TOF
  • new methods

Published Papers (1 paper)

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Research

18 pages, 5208 KiB  
Article
Impact of Nitric Oxide-Release Kinetics on Antifungal Activity
by Quincy E. Grayton, Ivie L. Conlon, Christopher A. Broberg and Mark H. Schoenfisch
J. Fungi 2024, 10(5), 308; https://doi.org/10.3390/jof10050308 - 24 Apr 2024
Viewed by 302
Abstract
Pathogenic fungi are an increasing health threat due to the rise in drug resistance. The limited number of antifungals currently available and growing incidence of multi-drug-resistant fungi has caused rising healthcare costs and a decreased quality of life for patients with fungal infections. [...] Read more.
Pathogenic fungi are an increasing health threat due to the rise in drug resistance. The limited number of antifungals currently available and growing incidence of multi-drug-resistant fungi has caused rising healthcare costs and a decreased quality of life for patients with fungal infections. Nitric oxide (NO) has previously been shown to act as an antimicrobial agent, albeit with a limited understanding of the effects of the NO-release kinetics against pathogenic fungi. Herein, the antifungal effects of four nitric oxide-releasing small molecules were studied against the pathogenic fungi Candida albicans, Candida auris, Cryptococcus neoformans, and Aspergillus fumigatus, to demonstrate the broad-spectrum antifungal activity of NO. A bolus dose of NO was found to eradicate fungi after 24 h, where nitric oxide donors with shorter half-lives achieved antifungal activity at lower concentrations and thus had wider selectivity indexes. Each NO donor was found to cause a severe surface destruction of fungi, and all NO donors exhibited compatibility with currently prescribed antifungals against several different fungi species. Full article
(This article belongs to the Special Issue Multidrug-Resistant Fungi: New Strategies for Diagnosis and Treatment)
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