Evidence map›Paper›PMID 30804016›Full record

ArticleBlood advances2019

Potentiation of complement regulator factor H protects human endothelial cells from complement attack in aHUS sera.

Richard B Pouw, Mieke C Brouwer, Marlon de Gast, Anna E van Beek, Lambertus P van den Heuvel, Christoph Q Schmidt, Arie van der Ende, Pilar Sánchez-Corral, Taco W Kuijpers, Diana Wouters

Open access · goldAbstract read
In one paragraph

Article in Blood advances, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing 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

14 citing papers in PubMed, 29 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

10 authors at 5 institutions in 4 countries.

Richard B PouwDepartment of Immunopathology, Sanquin Research, and Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands.ORCID 0000-0003-3469-8454
Mieke C BrouwerDepartment of Immunopathology, Sanquin Research, and Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands.
Marlon de GastDepartment of Immunopathology, Sanquin Research, and Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands.
Anna E van BeekDepartment of Immunopathology, Sanquin Research, and Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands.ORCID 0000-0002-2190-336X
Lambertus P van den HeuvelLaboratory of Pediatric Nephrology, Department of Development and Regeneration, Katholieke Universiteit Leuven, Leuven, Belgium.
Christoph Q SchmidtInstitute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm, Germany.
Arie van der EndeDepartment of Medical Microbiology, Netherlands Reference Laboratory for Bacterial Meningitis, Center for Infection and Immunity Amsterdam, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands.
Pilar Sánchez-CorralComplement Research Group, Hospital La Paz Institute for Health Research, La Paz University Hospital, and Centre for Biomedical Network Research on Rare Diseases, Madrid, Spain; and.ORCID 0000-0003-4212-1233
Taco W KuijpersDepartment of Pediatric Hematology, Immunology and Infectious Diseases, Emma Children's Hospital, Amsterdam UMC, Amsterdam, The Netherlands.ORCID 0000-0002-7421-3370
Diana WoutersDepartment of Immunopathology, Sanquin Research, and Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands.
Sanquin · NLAmsterdam University Medical Centers · NLHospital La Paz Institute for Health Research · ESRadboud University Nijmegen · NLUniversität Ulm · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Mutations in the gene encoding for complement regulator factor H (FH) severely disrupt its normal function to protect human cells from unwanted complement activation, resulting in diseases such as atypical hemolytic uremic syndrome (aHUS). aHUS presents with severe hemolytic anemia, thrombocytopenia, and renal disease, leading to end-stage renal failure. Treatment of severe complement-mediated disease, such as aHUS, by inhibiting the terminal complement pathway, has proven to be successful but at the same time fails to preserve the protective role of complement against pathogens. To improve complement regulation on human cells without interfering with antimicrobial activity, we identified an anti-FH monoclonal antibody (mAb) that induced increased FH-mediated protection of primary human endothelial cells from complement, while preserving the complement-mediated killing of bacteria. Moreover, this FH-activating mAb restored complement regulation in sera from aHUS patients carrying various heterozygous mutations in FH known to impair FH function and dysregulate complement activation. Our data suggest that FH normally circulates in a less active conformation and can become more active, allowing enhanced complement regulation on human cells. Antibody-mediated potentiation of FH may serve as a highly effective approach to inhibit unwanted complement activation on human cells in a wide range of hematological diseases while preserving the protective role of complement against pathogens.

Indexed as

Complement ActivationAnimalsAntibodies, MonoclonalAtypical Hemolytic Uremic SyndromeComplement C3bComplement Factor HEndothelial CellsHumansHuman Umbilical Vein Endothelial CellsMiceAntibodies, MonoclonalCFH protein, humanComplement C3bComplement Factor H

Identifiers

PMID30804016
PMCPMC6391659
OpenAlexW2915134966

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.