Veterinärmedizinische Universität Wien Forschungsinformationssystem VetDoc
Gewählte Publikation:
Publikationstyp:
Zeitschriftenaufsatz
Dokumentart:
Originalarbeit
Publikationsjahr:
2020
AutorInnen:
Geroldinger, G; Tonner, M; Quirgst, J; Walter, M; De Sarkar, S; Machín, L; Monzote, L; Stolze, K; Catharina Duvigneau, J; Staniek, K; Chatterjee, M; Gille, L
Titel:
Activation of Artemisinin and Heme Degradation in Leishmania tarentolae Promastigotes: A Possible Link.
Quelle:
Biochem Pharmacol. 2020; 173:113737
Autor/innen der Vetmeduni Vienna:
- Institut für Medizinische Biochemie
- Institut für Pharmakologie und Toxikologie
- Institut für Tierernährung und funktionelle Pflanzenstoffe
Beteiligte Vetmed-Organisationseinheiten
Zugehörige(s) Projekt(e): Auslöser und Angriffspunkte der Ascaridol-Wirkung in Leishmanien
- Endoperoxides (EPs) appear to be promising drug candidates against protozoal diseases, including malaria and leishmaniasis. Previous studies have shown that these drugs need an intracellular activation to exert their pharmacological potential. The efficiency of these drugs is linked to the extensive iron demand of these intracellular protozoal parasites. An essential step of the activation mechanism of these drugs is the formation of radicals in Leishmania. Iron is a known trigger for intracellular radical formation. However, the activation of EPs by low molecular iron or by heme iron may strongly depend on the structure of the EPs themselves. In this study, we focused on the activation of artemisinin (Art) in Leishmania tarentolae promastigotes (LtP) in comparison to reference compounds. Viability assays in different media in the presence of different iron sources (hemin/fetal calf serum) showed that IC
Abstract: