Evaluation of &ITCaenorhabditis elegans&IT as a host model for &ITParacoccidioides brasiliensis &ITand &ITParacoccidioides lutzii&IT

Autor(es)

Scorzoni, Liliana ^[1] ; Pilar de Lucas, Maria ^{[1, 2]} ; Singulani, Junya de lacorte ; de Oliveira, Haroldo Cesar ^[1] ; Assato, Patricia Akemi ^[1] ; Fusco-Almeida, Ana Marisa ^[1] ; Soares Mendes-Giannini, Maria Jose ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista UNESP, Fac Ciencias Farmaceut, Dept Anal Clin, Lab Micol Clin, Araraquara - Brazil

^[2] Inst Salud Carlos III, Unidad Func Invest Enfermedades Cron, Unidad Biol Celular, Majadahonda - Spain

• Tipo de documento: Artigo Científico
• Fonte: PATHOGENS AND DISEASE; v. 76, n. 1 FEB 2018.
• Citações Web of Science: 1

Resumo

Paracoccidioidomycosis is a systemic fungal infection affecting mainly Latin American countries that is caused by Paracoccidioides brasiliensis and Paracoccidioides lutzii. During the study of fungal pathogenesis, in vivo studies are crucial to understand the overall mechanisms involving the infection as well as to search for new therapeutic treatments and diagnosis. Caenorhabditis elegans is described as an infection model for different fungi species and a well-characterized organism to study the innate immune response. This study evaluates C. elegans as an infection model for Paracoccidioides spp. It was observed that both species do not cause infection in C. elegans, as occurs with Candida albicans, and one possible explanation is that the irregular size and shape of Paracoccidioides spp. difficult the ingestion of these fungi by the nematode. Besides this difficulty in the infection, we could observe that the simple exposition of C. elegans to Paracoccidioides species was able to trigger a distinct pattern of expression of antimicrobial peptide genes. The expression of cnc-4, nlpl-27 and nlp-31 was superior after the exposure to P. brasiliensis in comparison to P. lutzii (P < 0.05), and these findings demonstrate important differences regarding innate immune response activation caused by the two species of the Paracoccidioides genus. (AU)

• Processo FAPESP: 14/10446-9 - Pesquisa de novas terapias e de biomarcadores na paracoccidioidomicose: estudo da atividade antifúngica de galatos de alquila em modelos alternativos e camundongos e identificação de microRNAs circulantes
• Beneficiário: Junya de Lacorte Singulani
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 15/03700-9 - Animais alternativos aplicados à interação Paracoccidioides-hospedeiro para o desenvolvimento de estudos de virulência, eficácia e toxicidade de compostos antifúngicos e tratamentos preventivos
• Beneficiário: Maria José Soares Mendes Giannini
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 13/10917-9 - Modelos animais alternativos: Virulência de diferentes espécies filogenéticas de Paracoccidioides e efeito das proteínas 43kDa e 30kDa e de seus anticorpos
• Beneficiário: Liliana Scorzoni
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 15/14023-8 - Uso de peptídeos com atividade anti-adesiva em Paracoccidoides spp. na terapêutica e profilaxia da paracoccidioidomicose
• Beneficiário: Haroldo Cesar de Oliveira
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado