Evidence map›Paper›PMID 24191298›Full record

ArticleInfection and immunity2014

Versatile roles of CspA orthologs in complement inactivation of serum-resistant Lyme disease spirochetes.

Claudia Hammerschmidt, Arno Koenigs, Corinna Siegel, Teresia Hallström, Christine Skerka, Reinhard Wallich, Peter F Zipfel, Peter Kraiczy

Open access · bronzeAbstract read
In one paragraph

Article in Infection and immunity, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
3.5field-weighted citation impact, top 8% 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

42 citing papers in PubMed, 64 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Borrelia surface proteins: new horizons in Lyme disease diagnosis.Applied microbiology and biotechnology · 2025
    Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Review
  12. Evolution of theMicrobiology spectrum · 2022
    Article
  13. Article
  14. Review
  15. Subversion of the immune response of human pathogenic spirochetes.Journal of clinical laboratory analysis · 2022
    Review
  16. Article
  17. Review
  18. CipA mediates complement resistance ofFrontiers in immunology · 2022
    Article
  19. Article
  20. Endogenous and Borrowed Proteolytic Activity in theMicrobiology and molecular biology reviews : MMBR · 2021
    Review
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

8 authors at 4 institutions in 1 country.

Claudia HammerschmidtInstitute of Medical Microbiology and Infection Control, University Hospital of Frankfurt, Frankfurt, Germany.
Arno Koenigs
Corinna Siegel
Teresia Hallström
Christine Skerka
Reinhard Wallich
Peter F Zipfel
Peter Kraiczy
Leibniz-Institut für Naturstoff-Forschung und Infektionsbiologie e. V. - Hans-Knöll-Institut (HKI) · DEGoethe University Frankfurt · DEUniversity Hospital Frankfurt · DEHeidelberg University · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

CspA of the Lyme disease spirochete Borrelia burgdorferi represents a key molecule in immune evasion, protecting borrelial cells from complement-mediated killing. As previous studies focused almost exclusively on CspA of B. burgdorferi, here we investigate the different binding capacities of CspA orthologs of Borrelia burgdorferi, B. afzelii, and B. spielmanii for complement regulator factor H and plasminogen and their ability to inhibit complement activation by either binding these host-derived plasma proteins or independently by direct interaction with components involved in formation of the lethal, pore-like terminal complement complex. To further examine their function in serum resistance in vivo, a serum-sensitive B. garinii strain was used to generate spirochetes, ectopically producing functional CspA orthologs. Irrespective of their species origin, all three CspA orthologs impart resistance to complement-mediated killing when produced in a serum-sensitive B. garinii surrogate strain. To analyze the inhibitory effect on complement activation and to assess the potential to inactivate C3b by binding of factor H and plasminogen, recombinant CspA orthologs were also investigated. All three CspA orthologs simultaneously bound factor H and plasminogen but differed in regard to their capacity to inactivate C3b via bound plasmin(ogen) and inhibit formation of the terminal complement complex. CspA of B. afzelii binds plasmin(ogen) and inhibits the terminal complement complex more efficiently than CspA of B. burgdorferi and B. spielmanii. Taken together, CspA orthologs of serum-resistant Lyme disease spirochetes act as multifunctional evasion molecules that inhibit complement on two central activation levels, C3b generation and assembly of the terminal complement complex.

Indexed as

Analysis of VarianceBacterial ProteinsBacteriolysisBlood Bactericidal ActivityBorreliaBorrelia burgdorferiCells, CulturedComplement C3bComplement System ProteinsEnzyme-Linked Immunosorbent AssayHumansLyme DiseasePlasminogenProtein BindingBacterial Proteinscold shock protein CS7.4, BacteriaComplement C3bComplement System ProteinsPlasminogen

Identifiers

PMID24191298
PMCPMC3911871
OpenAlexW2149072483

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.