Modulation of host signalling pathways reveal a major role for Wnt signalling in the maturation of Plasmodium falciparum liver schizonts
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Abstract
After infection of the human host, the initial stage of the Plasmodium falciparum (Pf) lifecycle takes place in the liver. However, understanding of the host-parasite interaction has been limited by the rapid loss of functionality in cultured primary human hepatocytes (PHHs). Here, we link loss of hepatic functionality to drastic loss in Pf permissiveness, which we effectively prevent by using a novel medium containing serum-replacement and signal transduction inhibitors. Integrating transcriptomic analysis and phenotypic assessment of infection outcome, we identified several host signalling pathways that influence Pf liver stage development. Inhibition of the Wnt pathway in particular plays a major role in determining the size and maturity of Pf-liver schizonts, via retaining metabolic activity and epithelial nature of hepatocytes. Host signalling pathways determining Pf liver stage permissiveness provide insight into the complex host-parasite interaction and may accelerate development of novel therapeutic strategies for Pf-liver stages. (145)
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Volker Heussler
Review 1: "Modulation of Host Signalling Pathways Reveal a Major Role for Wnt Signalling in the Maturation of Plasmodium Falciparum Liver Schizonts"
The reviewer found the initial observation that P. falciparum parasites establish better in freshly isolated hepatocytes than cultivated ones to be convincing, and considered the transcriptomic data solid and well-presented.
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Volker Heussler
Review of "Modulation of Host Signalling Pathways Reveal a Major Role for Wnt Signalling in the Maturation of Plasmodium Falciparum Liver Schizonts"
Reviewer(s): V Heussler (Universität Bern ) | 📒📒📒 ◻️◻️
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