Pharmacological inhibition of key metabolic pathways attenuates Leishmania spp infection in macrophages.
Macrophages represent a fundamental component of the innate immune system that play a critical role in detecting and responding to pathogens as well as danger signals. Leishmania spp. infections lead to a notable alteration in macrophage metabolism, whereby infected cells display heightened energy m...
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2025-01-01
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| Series: | PLoS Neglected Tropical Diseases |
| Online Access: | https://doi.org/10.1371/journal.pntd.0012763 |
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| author | Elaine Carvalho de Oliveira Rafael Tibúrcio Gabriela Duarte Amanda Lago Léon de Melo Sara Nunes Gustavo Gastão Davanzo Ana Júlia Martins Bruno Vinagre Ribeiro Deborah Mothé Juliana B P Menezes Patrícia Veras Natalia Tavares Pedro M Moraes-Vieira Cláudia Ida Brodskyn |
| author_facet | Elaine Carvalho de Oliveira Rafael Tibúrcio Gabriela Duarte Amanda Lago Léon de Melo Sara Nunes Gustavo Gastão Davanzo Ana Júlia Martins Bruno Vinagre Ribeiro Deborah Mothé Juliana B P Menezes Patrícia Veras Natalia Tavares Pedro M Moraes-Vieira Cláudia Ida Brodskyn |
| author_sort | Elaine Carvalho de Oliveira |
| collection | DOAJ |
| description | Macrophages represent a fundamental component of the innate immune system that play a critical role in detecting and responding to pathogens as well as danger signals. Leishmania spp. infections lead to a notable alteration in macrophage metabolism, whereby infected cells display heightened energy metabolism that is linked to the integrity of host mitochondria. However, little is known about how different species of Leishmania manipulate host metabolism. Here, we demonstrate that despite differences in their mechanisms for evading host immune responses, L. amazonensis and L. braziliensis induce comparable disruptions in key metabolic pathways. We found that infected macrophages exhibited an overall elevation in energy metabolism regardless of the parasite strain, evidenced by the elevation in glycolysis and oxygen consumption rates, along with increased proton leak and decreased ATP production. We also analyzed the effects of both Leishmania spp. strain infection on mitochondria function, further revealing that infected cells display heightened mitochondrial mass and membrane potential. To investigate the metabolic pathways required for Leishmania amastigotes to persist in BMDMs, we pre-treated cells with small molecule drugs that target major metabolic pathways, revealing that perturbations in several metabolic processes affected parasite survival in a strain-independent manner. Treatments with inhibitors of the oxidative phosphorylation and glycolysis substantially reduced parasite loads. Collectively, our findings suggest that L.amazonensis and L.braziliensis exploit host cell metabolic pathways similarly to survive in macrophages. |
| format | Article |
| id | doaj-art-d6fadce2ef344e0694b292d8e776030c |
| institution | Kabale University |
| issn | 1935-2727 1935-2735 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS Neglected Tropical Diseases |
| spelling | doaj-art-d6fadce2ef344e0694b292d8e776030c2025-02-05T05:33:28ZengPublic Library of Science (PLoS)PLoS Neglected Tropical Diseases1935-27271935-27352025-01-01191e001276310.1371/journal.pntd.0012763Pharmacological inhibition of key metabolic pathways attenuates Leishmania spp infection in macrophages.Elaine Carvalho de OliveiraRafael TibúrcioGabriela DuarteAmanda LagoLéon de MeloSara NunesGustavo Gastão DavanzoAna Júlia MartinsBruno Vinagre RibeiroDeborah MothéJuliana B P MenezesPatrícia VerasNatalia TavaresPedro M Moraes-VieiraCláudia Ida BrodskynMacrophages represent a fundamental component of the innate immune system that play a critical role in detecting and responding to pathogens as well as danger signals. Leishmania spp. infections lead to a notable alteration in macrophage metabolism, whereby infected cells display heightened energy metabolism that is linked to the integrity of host mitochondria. However, little is known about how different species of Leishmania manipulate host metabolism. Here, we demonstrate that despite differences in their mechanisms for evading host immune responses, L. amazonensis and L. braziliensis induce comparable disruptions in key metabolic pathways. We found that infected macrophages exhibited an overall elevation in energy metabolism regardless of the parasite strain, evidenced by the elevation in glycolysis and oxygen consumption rates, along with increased proton leak and decreased ATP production. We also analyzed the effects of both Leishmania spp. strain infection on mitochondria function, further revealing that infected cells display heightened mitochondrial mass and membrane potential. To investigate the metabolic pathways required for Leishmania amastigotes to persist in BMDMs, we pre-treated cells with small molecule drugs that target major metabolic pathways, revealing that perturbations in several metabolic processes affected parasite survival in a strain-independent manner. Treatments with inhibitors of the oxidative phosphorylation and glycolysis substantially reduced parasite loads. Collectively, our findings suggest that L.amazonensis and L.braziliensis exploit host cell metabolic pathways similarly to survive in macrophages.https://doi.org/10.1371/journal.pntd.0012763 |
| spellingShingle | Elaine Carvalho de Oliveira Rafael Tibúrcio Gabriela Duarte Amanda Lago Léon de Melo Sara Nunes Gustavo Gastão Davanzo Ana Júlia Martins Bruno Vinagre Ribeiro Deborah Mothé Juliana B P Menezes Patrícia Veras Natalia Tavares Pedro M Moraes-Vieira Cláudia Ida Brodskyn Pharmacological inhibition of key metabolic pathways attenuates Leishmania spp infection in macrophages. PLoS Neglected Tropical Diseases |
| title | Pharmacological inhibition of key metabolic pathways attenuates Leishmania spp infection in macrophages. |
| title_full | Pharmacological inhibition of key metabolic pathways attenuates Leishmania spp infection in macrophages. |
| title_fullStr | Pharmacological inhibition of key metabolic pathways attenuates Leishmania spp infection in macrophages. |
| title_full_unstemmed | Pharmacological inhibition of key metabolic pathways attenuates Leishmania spp infection in macrophages. |
| title_short | Pharmacological inhibition of key metabolic pathways attenuates Leishmania spp infection in macrophages. |
| title_sort | pharmacological inhibition of key metabolic pathways attenuates leishmania spp infection in macrophages |
| url | https://doi.org/10.1371/journal.pntd.0012763 |
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