Benzimidazole analogues active against adult Schistosoma mansoni: SAR analyses, In vivo efficacy in mice, and preliminary mechanistic studies as potential inhibitors of hemozoin formation

IF 6 2区 医学 Q1 CHEMISTRY, MEDICINAL
Godwin A. Dziwornu, Henrietta Dede Attram, Cécile Haberli, Keabetswe Masike, Mathew Njoroge, Jennifer Keiser
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引用次数: 0

Abstract

For over three decades, praziquantel (PZQ) has been the mainstay chemotherapy for prevention and treatment of schistosomiasis. The excessive use of PZQ, coupled with the lack of advanced drug candidates in the current anti-schistosomiasis drug development pipeline, emphasizes the genuine need for new drugs. In the current work, we investigated the antischistosomal potential of a new series of compounds derived from the privileged benzimidazole scaffold, which exhibited low micromolar IC50 potency in the range of 1.0 – 2.7 μM against S. mansoni adult worms, in vitro. However, representative compounds showed low in vivo activity. One compound (15) reduced worm burden by 51.9% but not significant. Furthermore, by invoking inhibition of hemozoin formation, an immutable drug target in Schistosoma adult worms, as a likely contributing mode of action, we observed that the most potent analogues were equally potent inhibitors of β-hematin (synthetic hemozoin) formation in a cell-free assay.

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来源期刊
CiteScore
11.70
自引率
9.00%
发文量
863
审稿时长
29 days
期刊介绍: The European Journal of Medicinal Chemistry is a global journal that publishes studies on all aspects of medicinal chemistry. It provides a medium for publication of original papers and also welcomes critical review papers. A typical paper would report on the organic synthesis, characterization and pharmacological evaluation of compounds. Other topics of interest are drug design, QSAR, molecular modeling, drug-receptor interactions, molecular aspects of drug metabolism, prodrug synthesis and drug targeting. The journal expects manuscripts to present the rational for a study, provide insight into the design of compounds or understanding of mechanism, or clarify the targets.
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