| Autor: |
Ceccarelli G; Department of Pharmaceutical Sciences, University of Perugia, Via del Liceo 1, 06123 Perugia, Italy., Goracci L; Department of Chemistry, Biology and Biotechnology, University of Perugia, Via dell' Elce di Sotto 8, 06123 Perugia, Italy., Carotti A; Department of Pharmaceutical Sciences, University of Perugia, Via del Liceo 1, 06123 Perugia, Italy., Paccoia F; Department of Pharmaceutical Sciences, University of Perugia, Via del Liceo 1, 06123 Perugia, Italy., Passeri D; TES Pharma S.r.l., Corso Vannucci 47, 06121 Perugia, Italy., Cipolloni M; TES Pharma S.r.l., Corso Vannucci 47, 06121 Perugia, Italy., Di Bona S; Department of Chemistry, Biology and Biotechnology, University of Perugia, Via dell' Elce di Sotto 8, 06123 Perugia, Italy., Cruciani G; Department of Chemistry, Biology and Biotechnology, University of Perugia, Via dell' Elce di Sotto 8, 06123 Perugia, Italy., Pellicciari R; TES Pharma S.r.l., Corso Vannucci 47, 06121 Perugia, Italy., Gioiello A; Department of Pharmaceutical Sciences, University of Perugia, Via del Liceo 1, 06123 Perugia, Italy. |
| Abstrakt: |
The nuclear receptor ss DAF-12 has been recognized as the key molecular player regulating the life cycle of the nematode parasite Strongyloides stercoralis . ss DAF-12 ligands permit the receptor to function as an on/off switch modulating infection, making it vulnerable to therapeutic intervention. In this study, we report the design and synthesis of a set of novel dafachronic acid derivatives, which were used to outline the first structure-activity relationship targeting the ss DAF-12 receptor and to unveil hidden properties shared by the molecular shape of steroidal ligands that are relevant to the receptor binding and modulation. Moreover, biological results led to the discovery of sulfonamide 3 as a submicromolar ss DAF-12 agonist endowed with a high receptor selectivity, no toxicity, and improved properties, as well as to the identification of unprecedented ss DAF-12 antagonists that can be exploited in the search for novel chemical tools and alternative therapeutic approaches for treating parasitism such as Strongyloidiasis. |
