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BIBTEX RIS

Biogenic silver nanoparticle exhibits schistosomicidal activity in vitro and reduces the parasitic burden in experimental schistosomiasis mansoni

2023; Elsevier BV; Volume: 25; Issue: 7 Linguagem: Inglês

10.1016/j.micinf.2023.105145

1769-714X

Mariana Barbosa Detoni, Bruna Taciane da Silva Bortoleti, Fernanda Tomiotto‐Pellissier, Virgínia Marcia Concato, Manoela Daiele Gonçalves, Taylon Felipe Silva, Luryan Silvério Fidélis Ortiz, Amanda Caroliny Gomilde, Ana Carolina Jacob Rodrigues, Ricardo Luís Nascimento de Matos, Ana Paula Frederico Rodrigues Loureiro Bracarense, Andressa Maria Rorato Nascimento de Matos, Andréa Name Colado Simão, Thiago Hideo Endo, Renata Katsuko Takayama Kobayashi, Gerson Nakazato, Idessânia Nazareth Costa, Ivete Conchon‐Costa, Francisco José de Oliveira, Wander Rogério Pavanelli, Milena Menegazzo Miranda-Sapla,

Trace Elements in Health

Schistosomiasis is a neglected tropical parasitic disease that affects millions of people, being the second most prevalent parasitic disease worldwide. The current treatment has limited effectiveness, drug-resistant strains, and is not effective in different stages of the disease. This study investigated the antischistosomal activity of biogenic silver nanoparticles (Bio-AgNp) against Schistosoma mansoni. Bio-AgNp presented direct schistosomicidal activity on newly transformed schistosomula causing plasma membrane permeabilization. In S. mansoni adult worms, reduced the viability and affected the motility, increasing oxidative stress parameters, and inducing plasma membrane permeabilization, loss of mitochondrial membrane potential, lipid bodies accumulation, and autophagic vacuoles formation. During the experimental schistosomiasis mansoni model, Bio AgNp restored body weight, reduced hepatosplenomegaly, and decrease the number of eggs and worms in feces and liver tissue. The treatment also ameliorates liver damage and reduces macrophage and neutrophil infiltrates. A reduction in count and size was evaluated in the granulomas, as well as a change to an exudative-proliferative phase, with a local increase of IFN-γ. Together our results showed that Bio-AgNp is a promising therapeutic candidate for studies of new therapeutic strategies against schistosomiasis.