Disrupting Mosquito Reproduction and Parasite Development for Malaria Control.

The control of mosquito populations with insecticide treated bed nets and indoor residual sprays remains the cornerstone of malaria reduction and elimination programs. In light of widespread insecticide resistance in mosquitoes, however, alternative strategies for reducing transmission by the mosqui...

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Main Authors: Lauren M Childs, Francisco Y Cai, Evdoxia G Kakani, Sara N Mitchell, Doug Paton, Paolo Gabrieli, Caroline O Buckee, Flaminia Catteruccia
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2016-12-01
Series:PLoS Pathogens
Online Access:http://europepmc.org/articles/PMC5158081?pdf=render
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author Lauren M Childs
Francisco Y Cai
Evdoxia G Kakani
Sara N Mitchell
Doug Paton
Paolo Gabrieli
Caroline O Buckee
Flaminia Catteruccia
author_facet Lauren M Childs
Francisco Y Cai
Evdoxia G Kakani
Sara N Mitchell
Doug Paton
Paolo Gabrieli
Caroline O Buckee
Flaminia Catteruccia
author_sort Lauren M Childs
collection DOAJ
description The control of mosquito populations with insecticide treated bed nets and indoor residual sprays remains the cornerstone of malaria reduction and elimination programs. In light of widespread insecticide resistance in mosquitoes, however, alternative strategies for reducing transmission by the mosquito vector are urgently needed, including the identification of safe compounds that affect vectorial capacity via mechanisms that differ from fast-acting insecticides. Here, we show that compounds targeting steroid hormone signaling disrupt multiple biological processes that are key to the ability of mosquitoes to transmit malaria. When an agonist of the steroid hormone 20-hydroxyecdysone (20E) is applied to Anopheles gambiae females, which are the dominant malaria mosquito vector in Sub Saharan Africa, it substantially shortens lifespan, prevents insemination and egg production, and significantly blocks Plasmodium falciparum development, three components that are crucial to malaria transmission. Modeling the impact of these effects on Anopheles population dynamics and Plasmodium transmission predicts that disrupting steroid hormone signaling using 20E agonists would affect malaria transmission to a similar extent as insecticides. Manipulating 20E pathways therefore provides a powerful new approach to tackle malaria transmission by the mosquito vector, particularly in areas affected by the spread of insecticide resistance.
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spelling doaj.art-439b307fb07946a78917f54e86c579df2022-12-21T20:02:17ZengPublic Library of Science (PLoS)PLoS Pathogens1553-73661553-73742016-12-011212e100606010.1371/journal.ppat.1006060Disrupting Mosquito Reproduction and Parasite Development for Malaria Control.Lauren M ChildsFrancisco Y CaiEvdoxia G KakaniSara N MitchellDoug PatonPaolo GabrieliCaroline O BuckeeFlaminia CatterucciaThe control of mosquito populations with insecticide treated bed nets and indoor residual sprays remains the cornerstone of malaria reduction and elimination programs. In light of widespread insecticide resistance in mosquitoes, however, alternative strategies for reducing transmission by the mosquito vector are urgently needed, including the identification of safe compounds that affect vectorial capacity via mechanisms that differ from fast-acting insecticides. Here, we show that compounds targeting steroid hormone signaling disrupt multiple biological processes that are key to the ability of mosquitoes to transmit malaria. When an agonist of the steroid hormone 20-hydroxyecdysone (20E) is applied to Anopheles gambiae females, which are the dominant malaria mosquito vector in Sub Saharan Africa, it substantially shortens lifespan, prevents insemination and egg production, and significantly blocks Plasmodium falciparum development, three components that are crucial to malaria transmission. Modeling the impact of these effects on Anopheles population dynamics and Plasmodium transmission predicts that disrupting steroid hormone signaling using 20E agonists would affect malaria transmission to a similar extent as insecticides. Manipulating 20E pathways therefore provides a powerful new approach to tackle malaria transmission by the mosquito vector, particularly in areas affected by the spread of insecticide resistance.http://europepmc.org/articles/PMC5158081?pdf=render
spellingShingle Lauren M Childs
Francisco Y Cai
Evdoxia G Kakani
Sara N Mitchell
Doug Paton
Paolo Gabrieli
Caroline O Buckee
Flaminia Catteruccia
Disrupting Mosquito Reproduction and Parasite Development for Malaria Control.
PLoS Pathogens
title Disrupting Mosquito Reproduction and Parasite Development for Malaria Control.
title_full Disrupting Mosquito Reproduction and Parasite Development for Malaria Control.
title_fullStr Disrupting Mosquito Reproduction and Parasite Development for Malaria Control.
title_full_unstemmed Disrupting Mosquito Reproduction and Parasite Development for Malaria Control.
title_short Disrupting Mosquito Reproduction and Parasite Development for Malaria Control.
title_sort disrupting mosquito reproduction and parasite development for malaria control
url http://europepmc.org/articles/PMC5158081?pdf=render
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