Violacein Extracted from Chromobacterium violaceum Inhibits Plasmodium Growth In Vitro and In Vivo

Author:

Lopes Stefanie C. P.12,Blanco Yara C.12,Justo Giselle Z.3,Nogueira Paulo A.4,Rodrigues Francisco L. S.4,Goelnitz Uta5,Wunderlich Gerhard5,Facchini Gustavo6,Brocchi Marcelo1,Duran Nelson7,Costa Fabio T. M.12

Affiliation:

1. Departamento de Microbiologia e Imunologia, Instituto de Biologia, IB, Universidade Estadual de Campinas, UNICAMP, P.O. Box 6109, 13083-970 Campinas, SP, Brazil

2. Departamento de Parasitologia, IB, UNICAMP, P.O. Box 6109, 13083-970 Campinas, SP, Brazil

3. Departamento de Bioquímica, Universidade Federal de São Paulo, UNIFESP, Rua 3 de Maio 100, 04044-020 São Paulo, SP, Brazil

4. IPEPATRO/CEPEM, BR 364, KM 4.5, 78900-970 Porto Velho, RO, Brazil

5. Departamento de Parasitologia, ICB-2, Universidade de São Paulo, USP, São Paulo, SP, Brazil

6. Departamento de Fisiologia e Biofísica, IB, UNICAMP, P.O. Box 6109, 13083-970 Campinas, SP, Brazil

7. Instituto de Química, Laboratório de Química Biológica, IQ, UNICAMP, C.P. 6154, 13083-970 Campinas, SP, Brazil

Abstract

ABSTRACT Violacein is a violet pigment extracted from the gram-negative bacterium Chromobacterium violaceum . It presents bactericidal, tumoricidal, trypanocidal, and antileishmanial activities. We show that micromolar concentrations efficiently killed chloroquine-sensitive and -resistant Plasmodium falciparum strains in vitro; inhibited parasitemia in vivo, even after parasite establishment; and protected Plasmodium chabaudi chabaudi -infected mice from a lethal challenge.

Publisher

American Society for Microbiology

Subject

Infectious Diseases,Pharmacology (medical),Pharmacology

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