Evidence map›Paper›PMID 26169270›Full record

ArticleInfection and immunity2015

Plasmodium falciparum Infection of Human Volunteers Activates Monocytes and CD16+ Dendritic Cells and Induces Upregulation of CD16 and CD1c Expression.

Anne C Teirlinck, Meta Roestenberg, Else M Bijker, Stephen L Hoffman, Robert W Sauerwein, Anja Scholzen

Registry-linked trialOpen access · bronzeAbstract readClinical Trial, Phase I
In one paragraph

Article in Infection and immunity, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01086917 (Experimental Human Malaria Infection by Intradermal Injection of Plasmodium Falciparum Sporozoites), which is not on this map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
4.0field-weighted citation impact, top 7% 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.

NCT01086917 phase1completednot on this map

Experimental Human Malaria Infection by Intradermal Injection of Plasmodium Falciparum Sporozoites (PfSPZ Challenge)

TypeinterventionalSponsorSanaria Inc.Ran2010 to 2011Enrolled18ConditionsMalariaArmsPfSPZ Challenge
3 · Its place in the literature

Who cites it

30 citing papers in PubMed, 36 citations in OpenAlex.

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  6. Frontiers in immunology · 2023
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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 2 institutions in 2 countries.

Anne C TeirlinckRadboud University Medical Center, Department of Medical Microbiology, Nijmegen, The Netherlands.
Meta RoestenbergRadboud University Medical Center, Department of Medical Microbiology, Nijmegen, The Netherlands.
Else M BijkerRadboud University Medical Center, Department of Medical Microbiology, Nijmegen, The Netherlands.
Stephen L HoffmanSanaria Inc., Rockville, Maryland, USA.
Robert W SauerweinRadboud University Medical Center, Department of Medical Microbiology, Nijmegen, The Netherlands robert.sauerwein@radboudumc.nl anja.scholzen@radboudumc.nl.
Anja ScholzenRadboud University Medical Center, Department of Medical Microbiology, Nijmegen, The Netherlands robert.sauerwein@radboudumc.nl anja.scholzen@radboudumc.nl.
Radboud University Medical Center · NLSanaria · US

Funding

Universal Attenuated Sporozoite Vaccine and Challenge SystemR44AI058375 · NIAID · SANARIA, INC. · PI HOFFMAN, STEPHEN LEV · 2006 to 2018
$9.9M
NIAID NIH HHS R44 AI058375NIAID NIH HHS R44AI058375-03NIAID NIH HHS R44AI058375-04NIAID NIH HHS R44AI058375-05NIAID NIH HHS R44AI058375-05S1
6 · The paper itself

Abstract

Antigen-presenting cells (APCs) are key players in the induction and regulation of immune responses. In Plasmodium falciparum malaria, determination of which cells and pathways are activated in the network of APCs remains elusive. We therefore investigated the effects of a controlled human malaria infection in healthy, malaria-naive volunteers on the subset composition and activation status of dendritic cells (DCs) and monocytes. While subsets of monocytes increased in frequency during blood-stage infection, DC frequencies remained largely stable. Activation markers classically associated with peptide presentation to and priming of αβT cells, HLA-DR and CD86, were upregulated in monocytes and inflammatory CD16 myeloid DCs (mDCs) but not in the classical CD1c, BDCA2, or BDCA3 DC subsets. In addition, these activated APC subsets showed increased expression of CD1c, which is involved in glycolipid antigen presentation, and of the immune complex binding Fcγ receptor III (CD16). Our data show that P. falciparum asexual parasites do not activate classical DC subsets but instead activate mainly monocytes and inflammatory CD16 mDCs and appear to prime alternative activation pathways via induction of CD16 and/or CD1c. Changes in expression of these surface molecules might increase antigen capture and enhance glycolipid antigen presentation in addition to the classical major histocompatibility complex class II (MHC-II) peptide presentation and thereby contribute to the initiation of T-cell responses in malaria. (This study has been registered at Clinicaltrials.gov under registration no. NCT01086917.).

Indexed as

Antigens, CD1Dendritic CellsGlycoproteinsGPI-Linked ProteinsHealthy VolunteersHumansMalaria, FalciparumMonocytesPlasmodium falciparumReceptors, IgGUp-RegulationAntigens, CD1CD1C protein, humanFCGR3B protein, humanGlycoproteinsGPI-Linked ProteinsReceptors, IgG

Identifiers

PMID26169270
PMCPMC4534665
OpenAlexW2116557031

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.