Evidence map›Paper›PMID 33868311›Full record

ReviewFrontiers in immunology2021

A Family Affair: Addressing the Challenges of Factor H and the Related Proteins.

Felix Poppelaars, Elena Goicoechea de Jorge, Ilse Jongerius, Antje J Baeumner, Mark-Steven Steiner, Mihály Józsi, Erik J M Toonen, Diana Pauly, SciFiMed consortium

Erratum issuedOpen access · goldAbstract readReview
In one paragraph

Review in Frontiers in immunology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.2field-weighted citation impact, top 12% 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

24 citing papers in PubMed, 39 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Review
  5. Review
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  7. Review
  8. The Complement System.Advances in experimental medicine and biology · 2025
    Review
  9. Article
  10. Article
  11. Review
  12. Article
  13. The human factor H protein family - an update.Frontiers in immunology · 2024
    Review
  14. Article
  15. IgA nephropathy.Nature reviews. Disease primers · 2023
    Review
  16. Review
  17. Review
  18. Article
  19. Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 7 institutions in 4 countries.

Felix PoppelaarsDepartment of Internal Medicine, Division of Nephrology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands.
Elena Goicoechea de JorgeDepartment of Immunology, Faculty of Medicine, Complutense University and Research Institute Hospital 12 de Octubre (imas12), Madrid, Spain.
Ilse JongeriusDepartment of Immunopathology, Sanquin Research and Landsteiner Laboratory of the Academic Medical Centre, University of Amsterdam, Amsterdam, Netherlands.
Antje J BaeumnerInstitute of Analytical Chemistry, Chemo-and Biosensors, Faculty of Chemistry and Pharmacy, University of Regensburg, Regensburg, Germany.
Mark-Steven SteinerMicrocoat Biotechnologie GmbH, Bernried am Starnberger See, Germany.
Mihály JózsiDepartment of Immunology, ELTE Eötvös Loránd University, Budapest, Hungary.
Erik J M ToonenR&D Department, Hycult Biotech, Uden, Netherlands.
Diana PaulyDepartment of Ophthalmology, University Hospital Regensburg, Regensburg, Germany.
SciFiMed consortium
Emma Kinderziekenhuis · NLEötvös Loránd University · HUHycult Biotech (Netherlands) · NLResearch Institute Hospital 12 de Octubre · ESUniversity Hospital Regensburg · DEUniversity Medical Center Groningen · NLUniversity of Regensburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Inflammation is a common denominator of diseases. The complement system, an intrinsic part of the innate immune system, is a key driver of inflammation in numerous disorders. Recently, a family of proteins has been suggested to be of vital importance in conditions characterized by complement dysregulation: the human Factor H (FH) family. This group of proteins consists of FH, Factor H-like protein 1 and five Factor H-related proteins. The FH family has been linked to infectious, vascular, eye, kidney and autoimmune diseases. In contrast to FH, the functions of the other highly homologous proteins are largely unknown and, hence, their role in the different disease-specific pathogenic mechanisms remains elusive. In this perspective review, we address the major challenges ahead in this emerging area, including 1) the controversies about the functional roles of the FH protein family, 2) the discrepancies in quantification of the FH protein family, 3) the unmet needs for validated tools and 4) limitations of animal models. Next, we also discuss the opportunities that exist for the immunology community. A strong multidisciplinary approach is required to solve these obstacles and is only possible through interdisciplinary collaboration between biologists, chemists, geneticists and physicians. We position this review in light of our own perspective, as principal investigators of the SciFiMed Consortium, a consortium aiming to create a comprehensive analytical system for the quantitative and functional assessment of the entire FH protein family.

Indexed as

AnimalsComplement ActivationComplement Factor HComplement System ProteinsEnzyme-Linked Immunosorbent AssayHumansInflammationMacular DegenerationReceptors, ComplementReproducibility of ResultsCFH protein, humanComplement Factor HComplement System Proteinsfactor H receptorsReceptors, Complementchallenges - development directionscomplement systemfactor H (FH)factor H-like protein 1factor H-related protein

Identifiers

PMID33868311
PMCPMC8044877
OpenAlexW3136005316

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.