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.
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海洋化合物塔罗龙E靶向隐孢子虫的无性和早期性阶段。

DOI:
10.3390/microorganisms10112260
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发表时间:
2022-11-15
期刊:
影响因子:
4.5
通讯作者:
--
中科院分区:
生物学3区
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--
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隐孢子虫病的新治疗剂是一个关键的医疗需求。海洋有机化合物,酒石酮E(trtE),对多种顶复门寄生虫非常有效,包括隐孢子虫。了解trtE的作用机制是推进药物开发管道所必需的。在这里,我们使用Nluc C进行验证。小寄生虫的trtE的研究和查明的生活阶段的目标trtE。结果显示,trtE杀死Nluc和野生型C。parvum具有相同的效率,证实了Nluc C. parvum来研究这个化合物。结果显示,trtE在治疗后一小时内杀死寄生虫,虽然该化合物对子孢子的活力没有影响,但trtE确实抑制感染的建立。在特定生命周期阶段的靶向治疗表明,trtE对寄生虫的无性生殖有效,但对成熟的有性阶段的功效降低。基因表达分析表明,trtE抑制寄生虫的早期性阶段。这些研究的结果将有助于开发trtE作为隐孢子虫病的治疗药物。
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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