Dramé Papa Maktar, Poinsignon Anne, Besnard P., Cornélie Sylvie, Le Mire J., Toto J. C., Foumane V., Dos-Santos M. A., Sembène M., Fortes F., Simondon François, Carnevale Pierre, Remoué Franck. (2010). Human antibody responses to the Anopheles salivary gSG6-P1 peptide : a novel tool for evaluating the efficacy of ITNs in malaria vector control. Plos One, 5 (12), e15596 [9 p.]. ISSN 1932-6203.
Titre du document
Human antibody responses to the Anopheles salivary gSG6-P1 peptide : a novel tool for evaluating the efficacy of ITNs in malaria vector control
Année de publication
2010
Auteurs
Dramé Papa Maktar, Poinsignon Anne, Besnard P., Cornélie Sylvie, Le Mire J., Toto J. C., Foumane V., Dos-Santos M. A., Sembène M., Fortes F., Simondon François, Carnevale Pierre, Remoué Franck
Source
Plos One, 2010,
5 (12), e15596 [9 p.] ISSN 1932-6203
To optimize malaria control, WHO has prioritised the need for new indicators to evaluate the efficacy of malaria vector control strategies. The gSG6-P1 peptide from gSG6 protein of Anopheles gambiae salivary glands was previously designed as a specific salivary sequence of malaria vector species. It was shown that the quantification of human antibody (Ab) responses to Anopheles salivary proteins in general and especially to the gSG6-P1 peptide was a pertinent biomarker of human exposure to Anopheles. The present objective was to validate this indicator in the evaluation of the efficacy of Insecticide Treated Nets (ITNs). A longitudinal evaluation, including parasitological, entomological and immunological assessments, was conducted on children and adults from a malaria-endemic area before and after the introduction of ITNs. Significant decrease of anti-gSG6-P1 IgG response was observed just after the efficient ITNs use. Interestingly, specific IgG Ab level was especially pertinent to evaluate a short-time period of ITNs efficacy and at individual level. However, specific IgG rose back up within four months as correct ITN use waned. IgG responses to one salivary peptide could constitute a reliable biomarker for the evaluation of ITN efficacy, at short-and long-term use, and provide a valuable tool in malaria vector control based on a real measurement of human-vector contact.
Plan de classement
Entomologie médicale / Parasitologie / Virologie [052]
Description Géographique
ZONE TROPICALE
Localisation
Fonds IRD [F B010052992]
Identifiant IRD
fdi:010052992
