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A novel series of compounds was designed and synthesized by combining the distal piperazine nitrogen of the antifungal ketoconazole (KTZ) with primary arylsulfonamides. The aim of this study is to present the basis for a new generation of Malassezia antifungal agents able to inhibit the enzyme lanosterol-14α-demethylase (CYP51; EC 1.14.13.70) as well as a newly emergent therapeutic target: carbonic anhydrases (CAs; EC 4.2.1.1). The final compounds showed effective interactions with the intended targets in vitro, as well as KTZ comparable minimum inhibitory concentrations on yeast strains of the Malassezia genus: Malassezia furfur ATCC 14521; Malassezia globosa ATCC MYA 4612; and Malassezia pachydermatis DSM 6172. Overall, the data obtained account for the reported compounds as promising antifungal candidates with high safety profiles for the management of fungal infections.
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http://dx.doi.org/10.1002/ardp.70062 | DOI Listing |
Beilstein J Org Chem
August 2025
Department of Biochemistry & Molecular Biology, Dalhousie University, Halifax, Nova Scotia, B3H 4R2, Canada.
Lipophilic yeasts of the genus are commensal fungi that constitute the normal skin microbiota but may become pathogenic. These fungi, especially , convert tryptophan into various alkaloid indoles such as malassezione, which may serve as virulence factors. To facilitate testing of malassezione as an aryl hydrocarbon receptor agonist and potential glucokinase activator, we developed a convenient synthetic route from commercially available indole-3-acetic acid.
View Article and Find Full Text PDFMed Mycol Case Rep
September 2025
Albert Einstein College of Medicine and Montefiore Medical Center, 111 East 210th Street, Bronx, NY, 10467, USA.
Immunocompromised individuals are susceptible to cutaneous mycoses, often following skin trauma. Although infections by , , , , and are well-documented, human infection by unusual basidiomycetes is rarely reported. We describe a 69-year-old heart transplant recipient with a cutaneous nodule that was surgically excised and identified via fungal PCR as , a basidiomycete not previously implicated in human disease.
View Article and Find Full Text PDFRespir Med
August 2025
Servicio de Microbiología, Hospital Universitario Ramón y Cajal and Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain; Centro de Investigación Biomédica en Red Enfermedades Infecciosas (CIBERINFEC), Madrid, Spain. Electronic address:
Background: We aimed to elucidate the cystic fibrosis (CF) microbiota composition (shotgun metagenomics) and functionality (short-chain fatty acids, SCFAs).
Methods: Fecal and sputum samples were recruited from 39 clinically stable CF subjects.
Results: Bacillota and Pseudomonadota were dominant in both gut and lung compartments, whereas Ascomycota were the most abundant fungi in feces, and Basidiomycota, especially Malassezia globosa, in sputum.
Nat Biotechnol
August 2025
Genome Institute of Singapore (GIS), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore.
Metatranscriptomics methods for the skin are hampered by low microbial biomass, contamination with host cells and low RNA stability. In this study, we developed a robust, clinically tractable skin metatranscriptomics workflow that provides high technical reproducibility of profiles, uniform coverage across gene bodies and strong enrichment of microbial mRNAs. Paired application of this protocol with metagenomics to five skin sites in a cohort of 27 healthy adults identifies a notable divergence between transcriptomic and genomic abundances.
View Article and Find Full Text PDFFront Immunol
August 2025
Department of Gastroenterology, The Second Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangdong, Guangzhou, China.
Infliximab (IFX), a first-line treatment for moderate to severe Crohn's disease (CD), has immunomodulatory effects that increase the risk of opportunistic infections. Although IFX-associated invasive fungal infections have received widespread attention, IFX-associated superficial cutaneous fungal infections, such as Malassezia folliculitis (MF), have not been fully recognized. Herein, we present a case of a 19-year-old female patient with moderately active CD who rapidly developed facial erythema, inflammatory papules, and nodular lesions after treatment with IFX.
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