Unravelling the immune signature of Plasmodium falciparum transmission-reducing immunity

Will J R Stone, Joseph J Campo, André Lin Ouédraogo, Lisette Meerstein-Kessel, Isabelle Morlais, Dari Da, Anna Cohuet, Sandrine Nsango, Colin J Sutherland, Marga van de Vegte-Bolmer, Rianne Siebelink-Stoter, Geert-Jan van Gemert, Wouter Graumans, Kjerstin Lanke, Adam D Shandling, Jozelyn V Pablo, Andy A Teng, Sophie Jones, Roos M de Jong, Amanda Fabra-GarcíaJohn Bradley, Will Roeffen, Edwin Lasonder, Giuliana Gremo, Evelin Schwarzer, Chris J Janse, Susheel K Singh, Michael Theisen, Phil Felgner, Matthias Marti, Chris Drakeley, Robert Sauerwein, Teun Bousema, Matthijs M Jore

39 Citationer (Scopus)
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Abstract

Infection with Plasmodium can elicit antibodies that inhibit parasite survival in the mosquito, when they are ingested in an infectious blood meal. Here, we determine the transmission-reducing activity (TRA) of naturally acquired antibodies from 648 malaria-exposed individuals using lab-based mosquito-feeding assays. Transmission inhibition is significantly associated with antibody responses to Pfs48/45, Pfs230, and to 43 novel gametocyte proteins assessed by protein microarray. In field-based mosquito-feeding assays the likelihood and rate of mosquito infection are significantly lower for individuals reactive to Pfs48/45, Pfs230 or to combinations of the novel TRA-associated proteins. We also show that naturally acquired purified antibodies against key transmission-blocking epitopes of Pfs48/45 and Pfs230 are mechanistically involved in TRA, whereas sera depleted of these antibodies retain high-level, complement-independent TRA. Our analysis demonstrates that host antibody responses to gametocyte proteins are associated with reduced malaria transmission efficiency from humans to mosquitoes.

OriginalsprogEngelsk
Artikelnummer558
TidsskriftNature Communications
Vol/bind9
Udgave nummer1
Antal sider14
ISSN2041-1723
DOI
StatusUdgivet - 8 feb. 2018

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