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Published in: Malaria Journal 1/2010

Open Access 01-12-2010 | Research

Suppressive effect of azithromycin on Plasmodium berghei mosquito stage development and apicoplast replication

Authors: Shoichi Shimizu, Yoshio Osada, Tamotsu Kanazawa, Yoshiya Tanaka, Meiji Arai

Published in: Malaria Journal | Issue 1/2010

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Abstract

Background

Azithromycin (AZM) is a macrolide antibiotic that displays an excellent safety profile even in children and pregnant women and has been shown to have anti-malarial activity against blood stage Plasmodium falciparum. This study evaluated the transmission-blocking effect of AZM using a rodent malaria model.

Methods

AZM-treated mice infected with Plasmodium berghei were exposed to Anopheles stephensi mosquitoes, followed by the observation of parasite development at different phases in the mosquito, i.e., ookinetes in the midgut, oocysts on the midgut, and sporozoites in the midgut and salivary glands. Furthermore, to evaluate the effect on organelle replication of each stage, quantitative real-time PCR analysis was performed.

Results

The inhibitory effect of AZM was noticeable in both gametocyte-ookinete transformation in the midgut and sporozoite production in the oocyst, while the latter was most remarkable among all the developmental phases examined. Real-time PCR analysis revealed that AZM suppressed apicoplast replication at the period of sporozoite production in oocysts.

Conclusions

AZM inhibits parasite development in the mosquito stage, probably through the same mechanism as in the liver and blood stages. Such a multi-targeting anti-malarial, along with its safety, would be ideal for mass drug administration in malaria control programmes.
Appendix
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Metadata
Title
Suppressive effect of azithromycin on Plasmodium berghei mosquito stage development and apicoplast replication
Authors
Shoichi Shimizu
Yoshio Osada
Tamotsu Kanazawa
Yoshiya Tanaka
Meiji Arai
Publication date
01-12-2010
Publisher
BioMed Central
Published in
Malaria Journal / Issue 1/2010
Electronic ISSN: 1475-2875
DOI
https://doi.org/10.1186/1475-2875-9-73

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Live Webinar | 27-06-2024 | 18:00 (CEST)

Keynote webinar | Spotlight on medication adherence

Live: Thursday 27th June 2024, 18:00-19:30 (CEST)

WHO estimates that half of all patients worldwide are non-adherent to their prescribed medication. The consequences of poor adherence can be catastrophic, on both the individual and population level.

Join our expert panel to discover why you need to understand the drivers of non-adherence in your patients, and how you can optimize medication adherence in your clinics to drastically improve patient outcomes.

Prof. Kevin Dolgin
Prof. Florian Limbourg
Prof. Anoop Chauhan
Developed by: Springer Medicine
Obesity Clinical Trial Summary

At a glance: The STEP trials

A round-up of the STEP phase 3 clinical trials evaluating semaglutide for weight loss in people with overweight or obesity.

Developed by: Springer Medicine