期刊
CHEMISTRY & BIODIVERSITY
卷 8, 期 3, 页码 548-558出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cbdv.201000163
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资金
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP, Brazil)
- Nanobiomed Network Capes/Brazil
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) [476700/2009-4]
Schistosomiasis is a neglected tropical disease that remains a considerable public health problem worldwide. Since the mainstay of schistosomiasis control is chemotherapy with a single drug, praziquantel, drug resistance is a concern. Here, we examined the in vitro effects of dermaseptin 01 (DS 01), an antimicrobial peptide found in the skin secretion of frogs of the genus Phyllomedusa, on Schistosoma mansoni adult worms. DS 01 at a concentration of 100 mg/ml reduced the worm motor activity and caused the death of all worms within 48 h in RPMI 1640 medium. At the highest sublethal concentration of antimicrobial peptide (75 mg/ml), a 100% reduction in egg output of paired female worms was observed. Additionally, DS 01 induced morphological alterations on the tegument of S. mansoni, and a quantitative analysis carried out by confocal microscopy revealed extensive destruction of the tubercles in a dose-dependent manner over the concentration range of 50-200 mu g/ml. It was the first time that an anthelmintic activity towards schistosomes has been reported for a dermaseptin.
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