The fine specificity, but not the invasion inhibitory activity, of 19-kilodalton merozoite surface protein 1-specific antibodies is associated with resistance to malarial parasitemia in a cross-sectional survey in The Gambia.
Corran, Patrick H;
O'Donnell, Rebecca A;
Todd, Jim;
Uthaipibull, Chairat;
Holder, Anthony A;
Crabb, Brendan S;
Riley, Eleanor M;
(2004)
The fine specificity, but not the invasion inhibitory activity, of 19-kilodalton merozoite surface protein 1-specific antibodies is associated with resistance to malarial parasitemia in a cross-sectional survey in The Gambia.
Infection and immunity, 72 (10).
pp. 6185-6189.
ISSN 0019-9567
DOI: https://doi.org/10.1128/IAI.72.10.6185-6189.2004
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In a cross-sectional survey of 187 Gambian children and adults, we have analyzed prevalence, fine specificity, and 19-kilodalton merozoite surface protein 1 (MSP-1(19))-specific erythrocyte invasion inhibitory activity of antibodies to MSP-1(19) but find no significant association between any of these parameters and prevalence or density of malarial parasitemia, except that, after correcting for total anti-MSP-1(19) antibody levels, individuals with anti-MSP-1(19) antibodies that compete with an invasion inhibitory monoclonal antibody (12.10) were significantly less likely to have malaria infections with densities of > or =1,000 parasites/microl than were individuals without such antibodies. This association persisted after correction for age and ethnic origin.