Evidence map›Paper›PMID 31428091›Full record

ReviewFrontiers in immunology2019

Regulation of the Complement System by Pentraxins.

Karita Haapasalo, Seppo Meri

Open access · goldAbstract readReview
In one paragraph

Review in Frontiers in immunology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed
4.3field-weighted citation impact, top 5% 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

65 citing papers in PubMed, 99 citations in OpenAlex.

  1. Review
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  12. Exploring the intersection of atherosclerosis and Alzheimer's disease: the role of inflammation and complement activation.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2025
    Review
  13. Review
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  15. Divergent host humoral innate immune response to the smooth-to-rough adaptation ofFrontiers in cellular and infection microbiology · 2025
    Article
  16. Review
  17. Article
  18. Article
  19. Review
  20. Review

5 more citing papers are in PubMed but not listed here.

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

2 authors at 2 institutions in 2 countries.

Karita HaapasaloDepartment of Bacteriology and Immunology and Translational Immunology Research Program, University of Helsinki, Helsinki, Finland.
Seppo MeriDepartment of Bacteriology and Immunology and Translational Immunology Research Program, University of Helsinki, Helsinki, Finland.
Helsinki University Hospital · FIUniversity of Helsinki · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The functions of pentraxins, like C-reactive protein (CRP), serum amyloid protein P (SAP) and pentraxin-3 (PTX3), are to coordinate spatially and temporally targeted clearance of injured tissue components, to protect against infections and to regulate related inflammation together with the complement system. For this, pentraxins have a dual relationship with the complement system. Initially, after a focused binding to their targets, e.g., exposed phospholipids or cholesterol in the injured tissue area, or microbial components, the pentraxins activate complement by binding its first component C1q. However, the emerging inflammation needs to be limited to the target area. Therefore, pentraxins inhibit complement at the C3b stage to prevent excessive damage. The complement inhibitory functions of pentraxins are based on their ability to interact with complement inhibitors C4bp or factor H (FH). C4bp binds to SAP, while FH binds to both CRP and PTX3. FH promotes opsonophagocytosis through inactivation of C3b to iC3b, and inhibits AP activity thus preventing formation of the C5a anaphylatoxin and the complement membrane attack complex (MAC). Monitoring CRP levels gives important clinical information about the extent of tissue damage and severity of infections. CRP is a valuable marker for distinguishing bacterial infections from viral infections. Disturbances in the functions and interactions of pentraxins and complement are also involved in a number of human diseases. This review will summarize what is currently known about the FH family proteins and pentraxins that interact with FH. Furthermore, we will discuss diseases, where interactions between these molecules may play a role.

Indexed as

AnimalsComplement ActivationComplement Factor HComplement Membrane Attack ComplexComplement System ProteinsC-Reactive ProteinHumansPentraxinsSerum Amyloid P-ComponentComplement Factor HComplement Membrane Attack ComplexComplement System ProteinsC-Reactive ProteinPentraxinsSerum Amyloid P-Componentage-related macular degeneration (AMD)cholesterolcomplement C1qcomplement factor HCRP–C-reactive proteinfactor H-related proteininnatePTX3

Identifiers

PMID31428091
PMCPMC6688104
OpenAlexW2962182949

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.