Evidence map›Paper›PMID 27432885›Full record

ArticleThe Journal of biological chemistry2016

Structural and Immunological Characterization of Recombinant 6-Cysteine Domains of the Plasmodium falciparum Sexual Stage Protein Pfs230.

Nicholas J MacDonald, Vu Nguyen, Richard Shimp, Karine Reiter, Raul Herrera, Martin Burkhardt, Olga Muratova, Krishan Kumar, Joan Aebig, Kelly Rausch and 7 more

Registry-linked trialAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03917654 (Safety, Immunogenicity and Efficacy of Pfs230D1M-EPA/AS01 Vaccine, a Transmission Blocking Vaccine Against Plasmodium Falciparum, in an Age De-Escalation Trial of Children and a Family Compound Trial in Mali), which is not on this map. Cited by 74 papers.

0numbers the graph read from it
0cells of the map it votes in
74citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT03917654 phase2completednot on this mapstarted 2019, after this paper: background citation

Safety, Immunogenicity and Efficacy of Pfs230D1M-EPA/AS01 Vaccine, a Transmission Blocking Vaccine Against Plasmodium Falciparum, in an Age De-Escalation Trial of Children and a Family Compound Trial in Mali

TypeinterventionalSponsorNational Institute of Allergy and Infectious Diseases (NIAID)Ran2019 to 2022Enrolled1,301ConditionsMalariaArmsPfs230D1M-EPA/AS01, HAVRIX, TYPHIM Vi (Salmonella typhi vaccine), Menactra, AVAXIM
3 · Its place in the literature

Who cites it

74 citing papers in PubMed.

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  9. Seroprevalence of antibodies toFrontiers in immunology · 2025
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14 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

17 authors.

Nicholas J MacDonaldFrom the Laboratory of Malaria Immunology and Vaccinology, NIAID, National Institutes of Health, Rockville, Maryland 20852.
Vu NguyenFrom the Laboratory of Malaria Immunology and Vaccinology, NIAID, National Institutes of Health, Rockville, Maryland 20852.
Richard ShimpFrom the Laboratory of Malaria Immunology and Vaccinology, NIAID, National Institutes of Health, Rockville, Maryland 20852.
Karine ReiterFrom the Laboratory of Malaria Immunology and Vaccinology, NIAID, National Institutes of Health, Rockville, Maryland 20852.
Raul HerreraFrom the Laboratory of Malaria Immunology and Vaccinology, NIAID, National Institutes of Health, Rockville, Maryland 20852.
Martin BurkhardtFrom the Laboratory of Malaria Immunology and Vaccinology, NIAID, National Institutes of Health, Rockville, Maryland 20852.
Olga MuratovaFrom the Laboratory of Malaria Immunology and Vaccinology, NIAID, National Institutes of Health, Rockville, Maryland 20852.
Krishan KumarFrom the Laboratory of Malaria Immunology and Vaccinology, NIAID, National Institutes of Health, Rockville, Maryland 20852.
Joan AebigFrom the Laboratory of Malaria Immunology and Vaccinology, NIAID, National Institutes of Health, Rockville, Maryland 20852.
Kelly RauschFrom the Laboratory of Malaria Immunology and Vaccinology, NIAID, National Institutes of Health, Rockville, Maryland 20852.
Lynn LambertFrom the Laboratory of Malaria Immunology and Vaccinology, NIAID, National Institutes of Health, Rockville, Maryland 20852.
Nikiah DawsonFrom the Laboratory of Malaria Immunology and Vaccinology, NIAID, National Institutes of Health, Rockville, Maryland 20852.
Jetsumon Sattabongkotthe Mahidol Vivax Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, 10400 Thailand, and.
Xavier Ambroggiothe Rosetta Design Group LLC, Burlington, Vermont 05401.
Patrick E DuffyFrom the Laboratory of Malaria Immunology and Vaccinology, NIAID, National Institutes of Health, Rockville, Maryland 20852.
Yimin WuFrom the Laboratory of Malaria Immunology and Vaccinology, NIAID, National Institutes of Health, Rockville, Maryland 20852.
David L NarumFrom the Laboratory of Malaria Immunology and Vaccinology, NIAID, National Institutes of Health, Rockville, Maryland 20852, dnarum@niaid.nih.gov.

Funding

Vaccines to Interrupt Malaria Transmission: Clinical DevelopmentZIAAI001009 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI DUFFY, PATRICK · 2009 to 2025
$84.8M
Vaccines to Interrupt Malaria Transmission: Discovery and AssaysZIAAI001007 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI DUFFY, PATRICK · 2009 to 2025
$28.9M
Optimizing malaria transmission-blocking vaccines with improved platforms ZIAAI001008 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI DUFFY, PATRICK · 2009 to 2024
$25.2M
Wellcome Trust
6 · The paper itself

Abstract

Development of a Plasmodium falciparum (Pf) transmission blocking vaccine (TBV) has the potential to significantly impact malaria control. Antibodies elicited against sexual stage proteins in the human bloodstream are taken up with the blood meal of the mosquitoes and inactivate parasite development in the mosquito. In a phase 1 trial, a leading TBV identified as Pfs25-EPA/Alhydrogel® appeared safe and immunogenic, however, the level of Pfs25-specific antibodies were likely too low for an effective vaccine. Pfs230, a 230-kDa sexual stage protein expressed in gametocytes is an alternative vaccine candidate. A unique 6-cysteine-rich domain structure within Pfs230 have thwarted its recombinant expression and characterization for clinical evaluation for nearly a quarter of a century. Here, we report on the identification, biochemical, biophysical, and immunological characterization of recombinant Pfs230 domains. Rabbit antibodies generated against recombinant Pfs230 domains blocked mosquito transmission of a laboratory strain and two field isolates using an ex vivo assay. A planned clinical trial of the Pfs230 vaccine is a significant step toward the potential development of a transmission blocking vaccine to eliminate malaria.

Indexed as

AnimalsAntibodies, ProtozoanAntigens, ProtozoanHumansMalaria, FalciparumMalaria VaccinesPlasmodium falciparumProtein DomainsProtozoan ProteinsRabbitsAntibodies, ProtozoanAntigens, ProtozoanMalaria VaccinesPfs230 antigen, Plasmodium falciparumProtozoan ProteinsmalariaPfs230Pichia pastorisprotein structurerecombinant protein expressiontransmission blockingvaccineyeast

Identifiers

PMID27432885
PMCPMC5025679

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Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.