Skip to Main content Skip to Navigation
Journal articles

Plasmodium falciparum proteome changes in response to doxycycline treatment.

Abstract : BACKGROUND: The emergence of Plasmodium falciparum resistance to most anti-malarial compounds has highlighted the urgency to develop new drugs and to clarify the mechanisms of anti-malarial drugs currently used. Among them, doxycycline is used alone for malaria chemoprophylaxis or in combination with quinine or artemisinin derivatives for malaria treatment. The molecular mechanisms of doxycycline action in P. falciparum have not yet been clearly defined, particularly at the protein level. METHODS: A proteomic approach was used to analyse protein expression changes in the schizont stage of the malarial parasite P. falciparum following doxycycline treatment. A comparison of protein expression between treated and untreated protein samples was performed using two complementary proteomic approaches: two-dimensional fluorescence difference gel electrophoresis (2D-DIGE) and isobaric tagging reagents for relative and absolute quantification (iTRAQ). RESULTS: After doxycycline treatment, 32 and 40 P. falciparum proteins were found to have significantly deregulated expression levels by 2D-DIGE and iTRAQ methods, respectively. Although some of these proteins have been already described as being deregulated by other drug treatments, numerous changes in protein levels seem to be specific to doxycycline treatment, which could perturb apicoplast metabolism. Quantitative reverse transcription polymerase chain reaction (RT-PCR) was performed to confirm this hypothesis. CONCLUSIONS: In this study, a specific response to doxycycline treatment was distinguished and seems to involve mitochondrion and apicoplast organelles. These data provide a starting point for the elucidation of drug targets and the discovery of mechanisms of resistance to anti-malarial compounds.
Document type :
Journal articles
Complete list of metadatas

Cited literature [43 references]  Display  Hide  Download

https://www.hal.inserm.fr/inserm-00663742
Contributor : Ed. Bmc <>
Submitted on : Friday, January 27, 2012 - 2:19:24 PM
Last modification on : Thursday, March 29, 2018 - 5:28:01 PM
Long-term archiving on: : Saturday, April 28, 2012 - 2:32:00 AM

Identifiers

Collections

Citation

Sébastien Briolant, Lionel Almeras, Maya Belghazi, Elodie Boucomont-Chapeaublanc, Nathalie Wurtz, et al.. Plasmodium falciparum proteome changes in response to doxycycline treatment.. Malaria Journal, BioMed Central, 2010, 9 (1), pp.141. ⟨10.1186/1475-2875-9-141⟩. ⟨inserm-00663742⟩

Share

Metrics

Record views

513

Files downloads

693