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J Nat Prod. 2011 Oct 28;74(10):2269-72. doi: 10.1021/np200260f. Epub 2011 Sep 28.

Antimalarial activity of physalins B, D, F, and G.

Author information

1
Centro de Pesquisas Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Bahia, Brazil.

Abstract

The antimalarial activities of physalins B, D, F, and G (1-4), isolated from Physalis angulata, were investigated. In silico analysis using the similarity ensemble approach (SEA) database predicted the antimalarial activity of each of these compounds, which were shown using an in vitro assay against Plasmodium falciparum. However, treatment of P. berghei-infected mice with 3 increased parasitemia levels and mortality, whereas treatment with 2 was protective, causing a parasitemia reduction and a delay in mortality in P. berghei-infected mice. The exacerbation of in vivo infection by treatment with 3 is probably due to its potent immunosuppressive activity, which is not evident for 2.

PMID:
21954931
DOI:
10.1021/np200260f
[Indexed for MEDLINE]

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