| Autor: |
Scorzoni, Liliana, Alves de Paula e Silva, Ana Carolina, Cesar de Oliveira, Haroldo, Tavares dos Santos, Claudia, de Lacorte Singulani, Junya, Akemi Assato, Patricia, Maria Marcos, Caroline, Teodoro Oliveira, Lariane, Ferreira Fregonezi, Nathália, Pereira Rossi, Diego Conrado, Roque da Silva, Leandro Buffoni, Pelleschi Taborda, Carlos, Marisa Fusco-Almeida, Ana, Soares Mendes-Giannini, Maria José |
| Předmět: |
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| Zdroj: |
Journal of Fungi; Jan2021, Vol. 7 Issue 1, p1-16, 16p |
| Abstrakt: |
Background: Paracoccidioidomycosis (PCM) is a chronic disease that causes sequelae and requires prolonged treatment; therefore, new therapeutic approaches are necessary. In view of this, three peptides from Paracoccidioides brasiliensis 14-3-3 protein were selected based on its immunogenicity and therapeutic potential. Methods: The in vitro antifungal activity and cytotoxicity of the 14-3-3 peptides were evaluated. The influence of the peptides in immunological and survival aspects was evaluated in vivo, using Galleria mellonella and the expression of antimicrobial peptide genes in Caenorhabditis elegans. Results: None of the peptides were toxic to HaCaT (skin keratinocyte), MRC-5 (lung fibroblast), and A549 (pneumocyte) cell lines, and only P1 exhibited antifungal activity against Paracoccidioides spp. The peptides could induce an immune response in G. mellonella. Moreover, the peptides caused a delay in the death of Paracoccidioides spp. infected larvae. Regarding C. elegans, the three peptides were able to increase the expression of the antimicrobial peptides. These peptides had essential effects on different aspects of Paracoccidioides spp. infection showing potential for a therapeutic vaccine. Future studies using mammalian methods are necessary to validate our findings. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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