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Unravelling the immune signature of Plasmodium falciparum transmission-reducing immunity.


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.

SUBMITTER: Stone WJR 

PROVIDER: S-EPMC5805765 | biostudies-literature | 2018 Feb

REPOSITORIES: biostudies-literature

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Unravelling the immune signature of Plasmodium falciparum transmission-reducing immunity.

Stone Will J R WJR   Campo Joseph J JJ   Ouédraogo André Lin AL   Meerstein-Kessel Lisette L   Morlais Isabelle I   Da Dari D   Cohuet Anna A   Nsango Sandrine S   Sutherland Colin J CJ   van de Vegte-Bolmer Marga M   Siebelink-Stoter Rianne R   van Gemert Geert-Jan GJ   Graumans Wouter W   Lanke Kjerstin K   Shandling Adam D AD   Pablo Jozelyn V JV   Teng Andy A AA   Jones Sophie S   de Jong Roos M RM   Fabra-García Amanda A   Bradley John J   Roeffen Will W   Lasonder Edwin E   Gremo Giuliana G   Schwarzer Evelin E   Janse Chris J CJ   Singh Susheel K SK   Singh Susheel K SK   Theisen Michael M   Felgner Phil P   Marti Matthias M   Drakeley Chris C   Sauerwein Robert R   Bousema Teun T   Jore Matthijs M MM  

Nature communications 20180208 1


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 m  ...[more]

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