Cysteamine, the natural metabolite of pantetheinase, shows specific activity against Plasmodium

In mice, loss of pantetheinase activity causes susceptibility to infection with Plasmodium chabaudi AS. Treatment of mice with the pantetheinase metabolite cysteamine reduces blood-stage replication of P. chabaudi and significantly increases survival. Similarly, a short exposure of Plasmodium to cys...

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Veröffentlicht in:Experimental parasitology 2010-08, Vol.125 (4), p.315-324
Hauptverfasser: Min-Oo, Gundula, Ayi, Kodjo, Bongfen, Silayuv E., Tam, Mifong, Radovanovic, Irena, Gauthier, Susan, Santiago, Helton, Rothfuchs, Antonio Gigliotti, Roffê, Ester, Sher, Alan, Mullick, Alaka, Fortin, Anny, Stevenson, Mary M., Kain, Kevin C., Gros, Philippe
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container_title Experimental parasitology
container_volume 125
creator Min-Oo, Gundula
Ayi, Kodjo
Bongfen, Silayuv E.
Tam, Mifong
Radovanovic, Irena
Gauthier, Susan
Santiago, Helton
Rothfuchs, Antonio Gigliotti
Roffê, Ester
Sher, Alan
Mullick, Alaka
Fortin, Anny
Stevenson, Mary M.
Kain, Kevin C.
Gros, Philippe
description In mice, loss of pantetheinase activity causes susceptibility to infection with Plasmodium chabaudi AS. Treatment of mice with the pantetheinase metabolite cysteamine reduces blood-stage replication of P. chabaudi and significantly increases survival. Similarly, a short exposure of Plasmodium to cysteamine ex vivo is sufficient to suppress parasite infectivity in vivo. This effect of cysteamine is specific and not observed with a related thiol (dimercaptosuccinic acid) or with the pantethine precursor of cysteamine. Also, cysteamine does not protect against infection with the parasite Trypanosoma cruzi or the fungal pathogen Candida albicans, suggesting cysteamine acts directly against the parasite and does not modulate host inflammatory response. Cysteamine exposure also blocks replication of P. falciparum in vitro; moreover, these treated parasites show higher levels of intact hemoglobin. This study highlights the in vivo action of cysteamine against Plasmodium and provides further evidence for the involvement of pantetheinase in host response to this infection.
doi_str_mv 10.1016/j.exppara.2010.02.009
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subjects Amidohydrolases - metabolism
Animals
Anti-parasitic
Antimalarials - pharmacology
Antimalarials - therapeutic use
Apicomplexa
Biological and medical sciences
Candida albicans
Candidiasis - drug therapy
Chagas Disease - drug therapy
Chloroquine - pharmacology
Cysteamine
Cysteamine - pharmacology
Cysteamine - therapeutic use
Cytokines - blood
Cytokines - drug effects
Dose-Response Relationship, Drug
Erythrocytes - drug effects
Erythrocytes - parasitology
Female
Fundamental and applied biological sciences. Psychology
GPI-Linked Proteins
Hemoglobins - metabolism
Humans
Life cycle. Host-agent relationship. Pathogenesis
Malaria - drug therapy
Malaria - parasitology
Male
Mice
Mice, Inbred C57BL
Mouse model
Parasitemia - drug therapy
Parasitemia - parasitology
Plasmodium
Plasmodium chabaudi
Plasmodium chabaudi - drug effects
Plasmodium falciparum - drug effects
Plasmodium falciparum - metabolism
Protozoa
Trypanosoma cruzi
Trypanosoma cruzi - drug effects
title Cysteamine, the natural metabolite of pantetheinase, shows specific activity against Plasmodium
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