Brilacidin, a host defense peptide mimetic, potentiates ibrexafungerp antifungal activity against the human pathogenic fungus Aspergillus fumigatus.
Microbiol Spectr
; 12(8): e0088824, 2024 Aug 06.
Article
em En
| MEDLINE
| ID: mdl-38980033
ABSTRACT
Aspergillus fumigatus is the primary etiological agent of aspergillosis. Here, we show that the host defense peptide mimetic brilacidin (BRI) can potentiate ibrexafungerp (IBX) against clinical isolates of A. fumigatus. BRI + IBX can inhibit the growth of A. fumigatus voriconazole- and caspofungin-resistant clinical isolates. BRI is a small molecule host defense peptide mimetic that has previously exhibited broad-spectrum immunomodulatory/anti-inflammatory activity against viruses, bacteria, and fungi. In vitro, combination of BRI + IBX plays a fungicidal role, increases the fungal cell permeability, decreases the fungal survival in the presence of A549 epithelial cells, and appears as a promising antifungal therapeutic alternative against A. fumigatus. IMPORTANCE Invasive fungal infections have a high mortality rate causing more deaths annually than tuberculosis or malaria. Aspergillus fumigatus causes a series of distinct invasive fungal infections have a high mortality rate causing more deaths annually than tuberculosis or malaria. A. fumigatus causes a spectrum of distinct clinical entities named aspergillosis, which the most severe form is the invasive pulmonary aspergillosis. There are few therapeutic options for treating aspergillosis and searching for new antifungal agents against this disease is very important. Here, we present brilacidin (BRI) as a synergizer o fibrexafungerp (IBX) against A. fumigatus. BRI is a small molecule host defense peptide mimetic that has previously exhibited broad-spectrum immunomodulatory/anti-inflammatory activity against bacteria and viruses. We propose the combination of BRI and IBX as a new antifungal combinatorial treatment against aspergillosis.
Palavras-chave
Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Aspergillus fumigatus
/
Antifúngicos
Limite:
Humans
Idioma:
En
Revista:
Microbiol Spectr
/
Microbiol. spectr
/
Microbiology spectrum
Ano de publicação:
2024
Tipo de documento:
Article
País de afiliação:
Brasil