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  • The Marine Compound Tartrolon E Targets the Asexual and Early Sexual Stages of Cryptosporidium parvum.

The Marine Compound Tartrolon E Targets the Asexual and Early Sexual Stages of Cryptosporidium parvum.

Microorganisms (2022-11-25)
Alexis Cotto-Rosario, Emma Y D Miller, Fernanda G Fumuso, Jason A Clement, Matthew J Todd, Roberta M O'Connor
ANOTACE

New therapeutic agents for cryptosporidiosis are a critical medical need. The marine organic compound, tartrolon E (trtE), is highly effective against multiple apicomplexan parasites, including Cryptosporidium. Understanding the mechanism of action of trtE is required to advance in the drug development pipeline. Here, we validate using Nluc C. parvum parasites for the study of trtE and pinpoint the life stage targeted by trtE. Results show that trtE kills Nluc and wild type C. parvum with equal efficiency, confirming the use of the Nluc C. parvum to study this compound. Results revealed that trtE kills the parasite within an hour of treatment and while the compound has no effect on viability of sporozoites, trtE does inhibit establishment of infection. Targeting treatment at particular life cycle stages demonstrated that trtE is effective against asexual of the parasite but has reduced efficacy against mature sexual stages. Gene expression analysis shows that trtE inhibits the early sexual stage of the parasite. Results from these studies will aid the development of trtE as a therapeutic for cryptosporidiosis.

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Wiskostatin