Evidence map›Paper›PMID 12117928›Full record

ArticleInfection and immunity2002

Evidence that the variable regions of the central domain of VlsE are antigenic during infection with lyme disease spirochetes.

John V McDowell, Shian-Ying Sung, Linden T Hu, Richard T Marconi

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed
6.4field-weighted citation impact, top 3% 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

52 citing papers in PubMed, 116 citations in OpenAlex.

  1. Evolution of theMicrobiology spectrum · 2022
    Article
  2. Lyme Disease Pathogenesis.Current issues in molecular biology · 2021
    Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Antigenic Variation in Bacterial Pathogens.Microbiology spectrum · 2016
    Article
  9. Role of the VlsE Lipoprotein in Immune Avoidance by the Lyme Disease SpirocheteForum on immunopathological diseases and therapeutics · 2016
    Article
  10. Article
  11. Mini-review: Strategies for Variation and Evolution of Bacterial Antigens.Computational and structural biotechnology journal · 2015
    Review
  12. Review
  13. Potentially conflicting selective forces that shape the vls antigenic variation system in Borrelia burgdorferi.Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases · 2014
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

4 authors at 2 institutions in 1 country.

John V McDowellDepartment of Microbiology and Immunology, Medical College of Virginia at Virginia Commonwealth University, Richmond 23298-0678, USA.
Shian-Ying Sung
Linden T Hu
Richard T Marconi
Virginia Commonwealth University Medical Center · USTufts Medical Center · US

Funding

CLINICAL STUDIES OF CHRONIC LYME DISEASE-266965308N01AI065308 · NIAID · TUFTS MEDICAL CENTER · 1996 to 2004
$810k
OSPEF GENE FAMILY IN THE LYME SPIROCHETESR29AI037787 · NIAID · VIRGINIA COMMONWEALTH UNIVERSITY · PI MARCONI, RICHARD T · 1996 to 2000
$110k
Analysis of UHB-flanked genes of Lyme diseaseF31NS043088 · NINDS · VIRGINIA COMMONWEALTH UNIVERSITY · PI MCDOWELL, JOHN V · 2002 to 2003
$56k
NIAID NIH HHS N01 AI065308NIAID NIH HHS R29 AI037787NIAID NIH HHS R29-AI37787NINDS NIH HHS F31 NS043088NINDS NIH HHS F31NS43088
6 · The paper itself

Abstract

It has been postulated that the vls system of the Lyme disease spirochetes contributes to immune evasion through antigenic variation. While it is clear that vlsE undergoes sequence change within its variable regions at a high frequency during the early stages of infection, a definitive role in immune evasion has not been demonstrated. In this report we assessed the murine and human humoral immune response to recombinant (r)-VlsE variants that originally arose during infection in mice. Immunoblot analyses of r-VlsE variants were conducted by using serum samples collected from mice infected with Borrelia burgdorferi clones that carried different vlsE variants. All of the r-VlsE variants were recognized by infection sera regardless of the identity of the infecting clone or isolate. In addition, all variants were immunoreactive with a panel of human Lyme disease patient serum samples. It is evident from these analyses that the infection-induced VlsE variants share common epitopes that reside within conserved segments of these proteins. However, preabsorption experiments revealed that the variable regions of the central domain of VlsE, which undergo rapid mutation during infection, also influence the antigenic properties of the protein. A subset of the antibodies elicited against vlsE variants that differ in the sequences of their variable regions were found to be variant specific. Hence, in spite of a robust antibody response to conserved segments of VlsE, infection-induced sequence changes within the variable regions alter the antigenicity of VlsE. These results provide the first direct evidence of antigenic variation in the VlsE protein.

Indexed as

Bacterial ProteinsAnimalsAntibodies, BacterialAntigenic VariationAntigens, BacterialAntigens, SurfaceBorrelia burgdorferiEpitopes, B-LymphocyteEscherichia coliGene ExpressionHumansLipoproteinsLyme DiseaseMiceMice, Inbred C3HProtein Structure, TertiaryAntibodies, BacterialAntigens, BacterialAntigens, SurfaceBacterial ProteinsEpitopes, B-LymphocyteLipoproteinsRecombinant Fusion ProteinsVlsE protein, Borrelia burgdorferi

Identifiers

PMID12117928
PMCPMC128138
OpenAlexW2132770276

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.