In Vitro Antifungal Activity of LL-37 Analogue Peptides against Candida spp.

Gladys Pinilla, Yenifer Coronado, Gabriel Chaves, Liliana Muñoz, Jeannette Navarrete, Luz Mary Salazar, Carlos Taborda, Julian Esteban Munoz Henao

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8 Scopus citations

Abstract

Fungal infections have increased in recent decades with considerable morbidity and mortality, mainly in immunosuppressed or admitted-to-the-ICU patients. The fungal resistance to conventional antifungal treatments has become a public health problem, especially with Candida that presents resistance to several antifungals. Therefore, generating new alternatives of antifungal therapy is fundamental. One of these possibilities is the use of antimicrobial peptides, such as LL-37, which acts on the disruption of the microorganism membrane and promotes immunomodulatory effects in the host. In this study, we evaluated the in vitro antifungal activity of the LL-37 analogue peptides (AC-1, LL37-1, AC-2, and D) against different Candida spp. and clinical isolates obtained from patients with vulvovaginal candidiasis. Our results suggest that the peptides with the best ranges of MICs were LL37-1 and AC-2 (0.07 µM) against the strains studied. This inhibitory effect was confirmed by analyzing the yeast growth curves that evidenced a significant decrease in the fungal growth after exposure to LL-37 peptides. By the XTT technique we observed a significant reduction in the biofilm formation process when compared to yeasts untreated with the analogue peptides. In conclusion, we suggest that LL-37 analogue peptides may play an important antimicrobial role against Candida spp
Translated title of the contributionActividad antifúngica in vitro de péptidos análogos de LL-37 contra Candida spp.
Original languageEnglish (US)
Article number1173
Pages (from-to)1-12
Number of pages12
JournalJournal of Fungi
Volume8
Issue number11
DOIs
StatePublished - Nov 7 2022

All Science Journal Classification (ASJC) codes

  • Microbiology (medical)

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