Evidence map›Paper›PMID 31262714›Full record

ArticleEBioMedicine2019

Biosynthetic homeostasis and resilience of the complement system in health and infectious disease.

Esther Willems, Wynand Alkema, Jenneke Keizer-Garritsen, Anouk Suppers, Michiel van der Flier, Ria H L A Philipsen, Lambert P van den Heuvel, Elena Volokhina, Renate G van der Molen, Jethro A Herberg and 13 more

Open access · goldAbstract read
In one paragraph

Article in EBioMedicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.2field-weighted citation impact, top 21% 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

20 citing papers in PubMed, 28 citations in OpenAlex.

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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

23 authors at 6 institutions in 3 countries.

Esther WillemsSection Pediatric Infectious Diseases, Laboratory of Medical Immunology, Department of Laboratory Medicine, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands; Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands; Translational Metabolic Laboratory, Department of Laboratory Medicine, Radboud Institute for Molecular Life Sciences, Radboud university medical center, Nijmegen, The Netherlands. Electronic address: esther.willems1@radboudumc.nl.
Wynand AlkemaCentre for Molecular and Biomolecular Informatics, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands.
Jenneke Keizer-GarritsenTranslational Metabolic Laboratory, Department of Laboratory Medicine, Radboud Institute for Molecular Life Sciences, Radboud university medical center, Nijmegen, The Netherlands.
Anouk SuppersTranslational Metabolic Laboratory, Department of Laboratory Medicine, Radboud Institute for Molecular Life Sciences, Radboud university medical center, Nijmegen, The Netherlands.
Michiel van der FlierDepartment of Pediatrics, University Medical Center Utrecht, Utrecht, The Netherlands.
Ria H L A PhilipsenSection Pediatric Infectious Diseases, Laboratory of Medical Immunology, Department of Laboratory Medicine, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands; Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands.
Lambert P van den HeuvelTranslational Metabolic Laboratory, Department of Laboratory Medicine, Radboud Institute for Molecular Life Sciences, Radboud university medical center, Nijmegen, The Netherlands; Amalia Children's Hospital, Radboud University Medical Center, Nijmegen, The Netherlands.
Elena VolokhinaTranslational Metabolic Laboratory, Department of Laboratory Medicine, Radboud Institute for Molecular Life Sciences, Radboud university medical center, Nijmegen, The Netherlands; Amalia Children's Hospital, Radboud University Medical Center, Nijmegen, The Netherlands.
Renate G van der MolenSection Pediatric Infectious Diseases, Laboratory of Medical Immunology, Department of Laboratory Medicine, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands.
Jethro A HerbergDepartment of Medicine, Section for Paediatrics, Imperial College London, London, UK.
Michael LevinDepartment of Medicine, Section for Paediatrics, Imperial College London, London, UK.
Victoria J WrightDepartment of Medicine, Section for Paediatrics, Imperial College London, London, UK.
Inge M L AhoutAmalia Children's Hospital, Radboud University Medical Center, Nijmegen, The Netherlands.
Gerben FerwerdaSection Pediatric Infectious Diseases, Laboratory of Medical Immunology, Department of Laboratory Medicine, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands; Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands.
Marieke EmontsDepartment of Paediatric Immunology, Infectious Diseases and Allergy, Great North Children's Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK; Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK; NIHR Newcastle Biomedical Research Centre based at Newcastle upon Tyne Hospitals NHS Trust and Newcastle University, Newcastle upon Tyne, UK.
Navin P BoeddhaIntensive Care and Department of Pediatric Surgery, Erasmus MC-Sophia Children's Hospital, University Medical Center Rotterdam, Rotterdam, Netherlands.
Irene Rivero-CalleTranslational Pediatrics and Infectious Diseases, Hospital Clínico Universitario de Santiago, Instituto de Investigación Sanitaria de Santiago, Santiago de Compostela, Galicia, Spain.
Federico Martinon TorresTranslational Pediatrics and Infectious Diseases, Hospital Clínico Universitario de Santiago, Instituto de Investigación Sanitaria de Santiago, Santiago de Compostela, Galicia, Spain.
Hans J C T WesselsTranslational Metabolic Laboratory, Department of Laboratory Medicine, Radboud Institute for Molecular Life Sciences, Radboud university medical center, Nijmegen, The Netherlands.
Ronald de GrootSection Pediatric Infectious Diseases, Laboratory of Medical Immunology, Department of Laboratory Medicine, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands; Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands.
Alain J van GoolTranslational Metabolic Laboratory, Department of Laboratory Medicine, Radboud Institute for Molecular Life Sciences, Radboud university medical center, Nijmegen, The Netherlands.
Jolein GloerichTranslational Metabolic Laboratory, Department of Laboratory Medicine, Radboud Institute for Molecular Life Sciences, Radboud university medical center, Nijmegen, The Netherlands.
Marien I de JongeSection Pediatric Infectious Diseases, Laboratory of Medical Immunology, Department of Laboratory Medicine, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands; Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands.
Radboud University Nijmegen · NLImperial College London · GBInstituto de Investigación Sanitaria de Santiago · ESErasmus MC - Sophia Children’s Hospital · NLNewcastle upon Tyne Hospitals NHS Foundation Trust · GBUniversity Medical Center Utrecht · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe complement system is a central component of the innate immune system. Constitutive biosynthesis of complement proteins is essential for homeostasis. Dysregulation as a consequence of genetic or environmental cues can lead to inflammatory syndromes or increased susceptibility to infection. However, very little is known about steady state levels in children or its kinetics during infection.

methodsWith a newly developed multiplex mass spectrometry-based method we analyzed the levels of 32 complement proteins in healthy individuals and in a group of pediatric patients infected with bacterial or viral pathogens.

findingsIn plasma from young infants we found reduced levels of C4BP, ficolin-3, factor B, classical pathway components C1QA, C1QB, C1QC, C1R, and terminal pathway components C5, C8, C9, as compared to healthy adults; whereas the majority of complement regulating (inhibitory) proteins reach adult levels at very young age. Both viral and bacterial infections in children generally lead to a slight overall increase in complement levels, with some exceptions. The kinetics of complement levels during invasive bacterial infections only showed minor changes, except for a significant increase and decrease of CRP and clusterin, respectively.

interpretationThe combination of lower levels of activating and higher levels of regulating complement proteins, would potentially raise the threshold of activation, which might lead to suppressed complement activation in the first phase of life. There is hardly any measurable complement consumption during bacterial or viral infection. Altogether, expression of the complement proteins appears surprisingly stable, which suggests that the system is continuously replenished. FUND: European Union's Horizon 2020, project PERFORM, grant agreement No. 668303.

Indexed as

AdolescentAdultChildChild, PreschoolClusterinCommunicable DiseasesComplement ActivationComplement System ProteinsC-Reactive ProteinFemaleHomeostasisHumansInfantInfant, NewbornInflammationMaleClusterinComplement System ProteinsC-Reactive ProteinClusterinComplement systemC-reactive protein (CRP)Infectious diseaseMultiple reaction monitoring (MRM)Targeted mass spectrometry

Identifiers

PMID31262714
PMCPMC6642076
OpenAlexW2955507302

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.