Induced pluripotent stem cell-derived human macrophages as an infection model for Leishmania donovani.

The parasite Leishmania donovani is one of the species causing visceral leishmaniasis in humans, a deadly infection claiming up to 40,000 lives each year. The current drugs for leishmaniasis treatment have severe drawbacks and there is an urgent need to find new anti-leishmanial compounds. However,...

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Main Authors: Lore Baert, Serena Rudy, Mélanie Pellisson, Thierry Doll, Romina Rocchetti, Marcel Kaiser, Pascal Mäser, Matthias Müller
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2024-01-01
Series:PLoS Neglected Tropical Diseases
Online Access:https://journals.plos.org/plosntds/article/file?id=10.1371/journal.pntd.0011559&type=printable
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author Lore Baert
Serena Rudy
Mélanie Pellisson
Thierry Doll
Romina Rocchetti
Marcel Kaiser
Pascal Mäser
Matthias Müller
author_facet Lore Baert
Serena Rudy
Mélanie Pellisson
Thierry Doll
Romina Rocchetti
Marcel Kaiser
Pascal Mäser
Matthias Müller
author_sort Lore Baert
collection DOAJ
description The parasite Leishmania donovani is one of the species causing visceral leishmaniasis in humans, a deadly infection claiming up to 40,000 lives each year. The current drugs for leishmaniasis treatment have severe drawbacks and there is an urgent need to find new anti-leishmanial compounds. However, the search for drug candidates is complicated by the intracellular lifestyle of Leishmania. Here, we investigate the use of human induced pluripotent stem cell (iPS)-derived macrophages (iMACs) as host cells for L. donovani. iMACs obtained through embryoid body differentiation were infected with L. donovani promastigotes, and high-content imaging techniques were used to optimize the iMACs seeding density and multiplicity of infection, allowing us to reach infection rates up to 70% five days after infection. IC50 values obtained for miltefosine and amphotericin B using the infected iMACs or mouse peritoneal macrophages as host cells were comparable and in agreement with the literature, showing the potential of iMACs as an infection model for drug screening.
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spelling doaj.art-0559f775e19b434eb173945480fa2e872024-01-18T07:06:24ZengPublic Library of Science (PLoS)PLoS Neglected Tropical Diseases1935-27271935-27352024-01-01181e001155910.1371/journal.pntd.0011559Induced pluripotent stem cell-derived human macrophages as an infection model for Leishmania donovani.Lore BaertSerena RudyMélanie PellissonThierry DollRomina RocchettiMarcel KaiserPascal MäserMatthias MüllerThe parasite Leishmania donovani is one of the species causing visceral leishmaniasis in humans, a deadly infection claiming up to 40,000 lives each year. The current drugs for leishmaniasis treatment have severe drawbacks and there is an urgent need to find new anti-leishmanial compounds. However, the search for drug candidates is complicated by the intracellular lifestyle of Leishmania. Here, we investigate the use of human induced pluripotent stem cell (iPS)-derived macrophages (iMACs) as host cells for L. donovani. iMACs obtained through embryoid body differentiation were infected with L. donovani promastigotes, and high-content imaging techniques were used to optimize the iMACs seeding density and multiplicity of infection, allowing us to reach infection rates up to 70% five days after infection. IC50 values obtained for miltefosine and amphotericin B using the infected iMACs or mouse peritoneal macrophages as host cells were comparable and in agreement with the literature, showing the potential of iMACs as an infection model for drug screening.https://journals.plos.org/plosntds/article/file?id=10.1371/journal.pntd.0011559&type=printable
spellingShingle Lore Baert
Serena Rudy
Mélanie Pellisson
Thierry Doll
Romina Rocchetti
Marcel Kaiser
Pascal Mäser
Matthias Müller
Induced pluripotent stem cell-derived human macrophages as an infection model for Leishmania donovani.
PLoS Neglected Tropical Diseases
title Induced pluripotent stem cell-derived human macrophages as an infection model for Leishmania donovani.
title_full Induced pluripotent stem cell-derived human macrophages as an infection model for Leishmania donovani.
title_fullStr Induced pluripotent stem cell-derived human macrophages as an infection model for Leishmania donovani.
title_full_unstemmed Induced pluripotent stem cell-derived human macrophages as an infection model for Leishmania donovani.
title_short Induced pluripotent stem cell-derived human macrophages as an infection model for Leishmania donovani.
title_sort induced pluripotent stem cell derived human macrophages as an infection model for leishmania donovani
url https://journals.plos.org/plosntds/article/file?id=10.1371/journal.pntd.0011559&type=printable
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