Evidence map›Paper›PMID 33479242›Full record

ArticleNPJ vaccines2021

An epitope-based malaria vaccine targeting the junctional region of circumsporozoite protein.

Lucie Jelínková, Hugo Jhun, Allison Eaton, Nikolai Petrovsky, Fidel Zavala, Bryce Chackerian

Open access · goldAbstract read
In one paragraph

Article in NPJ vaccines, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
8.0field-weighted citation impact, top 2% of its field
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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

42 citing papers in PubMed, 56 citations in OpenAlex.

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  14. Immunization AgainstVaccines · 2025
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  16. Review
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  19. Review
  20. In-silico analysis of potent Mosquirix vaccine adjuvant leads.Journal, genetic engineering & biotechnology · 2023
    Article
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

6 authors at 3 institutions in 2 countries.

Lucie JelínkováDepartment of Molecular Genetics and Microbiology, University of New Mexico School of Medicine, Albuquerque, New Mexico, USA.
Hugo JhunW. Harry Feinstone Department of Molecular Microbiology and Immunology, Malaria Research Institute, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
Allison EatonW. Harry Feinstone Department of Molecular Microbiology and Immunology, Malaria Research Institute, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
Nikolai PetrovskyVaxine Pty Ltd, 11 Walkley Avenue, Warradale, Adelaide, SA, 5046, Australia.ORCID http://orcid.org/0000-0002-1580-5245
Fidel ZavalaW. Harry Feinstone Department of Molecular Microbiology and Immunology, Malaria Research Institute, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.ORCID http://orcid.org/0000-0002-1414-6196
Bryce ChackerianDepartment of Molecular Genetics and Microbiology, University of New Mexico School of Medicine, Albuquerque, New Mexico, USA. bchackerian@salud.unm.edu.
Johns Hopkins University · USUniversity of New Mexico · USFlinders University · AU

Funding

Biology of Infectious Diseases &InflammationT32AI007538 · NIAID · UNIVERSITY OF NEW MEXICO HEALTH SCIS CTR · PI Michelle A Ozbun · 1998 to 2026
$5.2M
Novel vaccine adjuvants to counter bioterrorist threatsU01AI061142 · NIAID · FLINDERS UNIVERSITY OF SOUTH AUSTRALIA · PI PETROVSKY, NIKOLAI · 2005 to 2009
$3.5M
NIAID NIH HHS T32 AI007538NIAID NIH HHS U01 AI061142U.S. Department of Health & Human Services | NIH | National Institute of Allergy and Infectious Diseases (NIAID) U01-AI061142
6 · The paper itself

Abstract

A malaria vaccine that elicits long-lasting protection and is suitable for use in endemic areas remains urgently needed. Here, we assessed the immunogenicity and prophylactic efficacy of a vaccine targeting a recently described epitope on the major surface antigen on Plasmodium falciparum sporozoites, circumsporozoite protein (CSP). Using a virus-like particle (VLP)-based vaccine platform technology, we developed a vaccine that targets the junctional region between the N-terminal and central repeat regions of CSP. This region is recognized by monoclonal antibodies, including mAb CIS43, that have been shown to potently prevent liver invasion in animal models. We show that CIS43 VLPs elicit high-titer and long-lived anti-CSP antibody responses in mice and is immunogenic in non-human primates. In mice, vaccine immunogenicity was enhanced by using mixed adjuvant formulations. Immunization with CIS43 VLPs conferred partial protection from malaria infection in a mouse model, and passive transfer of serum from immunized macaques also inhibited parasite liver invasion in the mouse infection model. Our findings demonstrate that a Qβ VLP-based vaccine targeting the CIS43 epitope combined with various adjuvants is highly immunogenic in mice and macaques, elicits long-lasting anti-CSP antibodies, and inhibits parasite infection in a mouse model. Thus, the CIS43 VLP vaccine is a promising pre-erythrocytic malaria vaccine candidate.

Identifiers

PMID33479242
PMCPMC7820318
OpenAlexW3121460516

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Registered trials

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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.