In vitro effectivity of three approved drugs and their synergistic interaction against Leishmania infantum
Introduction: Leishmaniasis remains one of the neglected tropical diseases. Repurposing existing drugs has proven to be successful for treating neglected tropical diseases while combination therapy is a strategic alternative for the treatment of infectious diseases. Auranofin, lopinavir/ritonavir, a...
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ftdoajarticles:oai:doaj.org/article:d4f6f634ce9e4d2289d7fa59b864a717 2023-05-15T15:13:00+02:00 In vitro effectivity of three approved drugs and their synergistic interaction against Leishmania infantum Iman Fathy Abou-El-Naga Rasha Fadly Mady Nermine Mogahed Fawzy Hussien Mogahed 2020-05-01T00:00:00Z https://doi.org/10.7705/biomedica.4891 https://doaj.org/article/d4f6f634ce9e4d2289d7fa59b864a717 EN ES eng spa Instituto Nacional de Salud https://revistabiomedica.org/index.php/biomedica/article/view/4891 https://doaj.org/toc/0120-4157 0120-4157 doi:10.7705/biomedica.4891 https://doaj.org/article/d4f6f634ce9e4d2289d7fa59b864a717 Biomédica: revista del Instituto Nacional de Salud, Vol 40, Iss Supl. 1, Pp 89-101 (2020) leishmania infantum drug synergism apoptosis autophagy Medicine R Arctic medicine. Tropical medicine RC955-962 article 2020 ftdoajarticles https://doi.org/10.7705/biomedica.4891 2022-12-31T02:07:08Z Introduction: Leishmaniasis remains one of the neglected tropical diseases. Repurposing existing drugs has proven to be successful for treating neglected tropical diseases while combination therapy is a strategic alternative for the treatment of infectious diseases. Auranofin, lopinavir/ritonavir, and sorafenib are FDA approved drugs used in the treatment of diverse diseases by acting on different essential biological enzymes. Objective: To evaluate the effects of monotherapy and combined therapies with the three drugs against Leishmania infantum. Materials and methods: We compared the leishmanicidal effects of the three drugs on promastigotes in vitro as regards the parasite count, the drug concentration providing a half-maximal response, and the ultrastructural changes of the parasite. We determined the fractional inhibitory concentration index of combined drugs in two ways, as well as the activity of the three drugs together to establish their synergetic effect. Results: The monotherapy with the three drugs was effective with auranofin showing the best leishmanicidal effect (EC50=1.5 μM), whereas sorafinib reduced parasite growth at EC50=2.5 μM. The scanning electron microscopy of promastigotes from all treated media showed distortion in the shape with loss of flagella and bleb formation. Acidocalcinosis was evident by transmission electron microscopy with all treatments suggesting apoptosis. Treatment with lopinavir/ritonavir showed signs of autophagy. The two-way combination of the drugs led to additive interactions while the combination of the three drugs showed synergistic action. Conclusion: Each drug when used as monotherapy against Leishmania spp. was effective, but the combination therapy was more effective than the individual drugs due to the additive or synergistic effects. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Biomédica 40 Supl. 1 89 101 |
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leishmania infantum drug synergism apoptosis autophagy Medicine R Arctic medicine. Tropical medicine RC955-962 |
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leishmania infantum drug synergism apoptosis autophagy Medicine R Arctic medicine. Tropical medicine RC955-962 Iman Fathy Abou-El-Naga Rasha Fadly Mady Nermine Mogahed Fawzy Hussien Mogahed In vitro effectivity of three approved drugs and their synergistic interaction against Leishmania infantum |
topic_facet |
leishmania infantum drug synergism apoptosis autophagy Medicine R Arctic medicine. Tropical medicine RC955-962 |
description |
Introduction: Leishmaniasis remains one of the neglected tropical diseases. Repurposing existing drugs has proven to be successful for treating neglected tropical diseases while combination therapy is a strategic alternative for the treatment of infectious diseases. Auranofin, lopinavir/ritonavir, and sorafenib are FDA approved drugs used in the treatment of diverse diseases by acting on different essential biological enzymes. Objective: To evaluate the effects of monotherapy and combined therapies with the three drugs against Leishmania infantum. Materials and methods: We compared the leishmanicidal effects of the three drugs on promastigotes in vitro as regards the parasite count, the drug concentration providing a half-maximal response, and the ultrastructural changes of the parasite. We determined the fractional inhibitory concentration index of combined drugs in two ways, as well as the activity of the three drugs together to establish their synergetic effect. Results: The monotherapy with the three drugs was effective with auranofin showing the best leishmanicidal effect (EC50=1.5 μM), whereas sorafinib reduced parasite growth at EC50=2.5 μM. The scanning electron microscopy of promastigotes from all treated media showed distortion in the shape with loss of flagella and bleb formation. Acidocalcinosis was evident by transmission electron microscopy with all treatments suggesting apoptosis. Treatment with lopinavir/ritonavir showed signs of autophagy. The two-way combination of the drugs led to additive interactions while the combination of the three drugs showed synergistic action. Conclusion: Each drug when used as monotherapy against Leishmania spp. was effective, but the combination therapy was more effective than the individual drugs due to the additive or synergistic effects. |
format |
Article in Journal/Newspaper |
author |
Iman Fathy Abou-El-Naga Rasha Fadly Mady Nermine Mogahed Fawzy Hussien Mogahed |
author_facet |
Iman Fathy Abou-El-Naga Rasha Fadly Mady Nermine Mogahed Fawzy Hussien Mogahed |
author_sort |
Iman Fathy Abou-El-Naga |
title |
In vitro effectivity of three approved drugs and their synergistic interaction against Leishmania infantum |
title_short |
In vitro effectivity of three approved drugs and their synergistic interaction against Leishmania infantum |
title_full |
In vitro effectivity of three approved drugs and their synergistic interaction against Leishmania infantum |
title_fullStr |
In vitro effectivity of three approved drugs and their synergistic interaction against Leishmania infantum |
title_full_unstemmed |
In vitro effectivity of three approved drugs and their synergistic interaction against Leishmania infantum |
title_sort |
in vitro effectivity of three approved drugs and their synergistic interaction against leishmania infantum |
publisher |
Instituto Nacional de Salud |
publishDate |
2020 |
url |
https://doi.org/10.7705/biomedica.4891 https://doaj.org/article/d4f6f634ce9e4d2289d7fa59b864a717 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Biomédica: revista del Instituto Nacional de Salud, Vol 40, Iss Supl. 1, Pp 89-101 (2020) |
op_relation |
https://revistabiomedica.org/index.php/biomedica/article/view/4891 https://doaj.org/toc/0120-4157 0120-4157 doi:10.7705/biomedica.4891 https://doaj.org/article/d4f6f634ce9e4d2289d7fa59b864a717 |
op_doi |
https://doi.org/10.7705/biomedica.4891 |
container_title |
Biomédica |
container_volume |
40 |
container_issue |
Supl. 1 |
container_start_page |
89 |
op_container_end_page |
101 |
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1766343610657144832 |