Evidence map›Paper›PMID 14722614›Full record

ArticleThe Journal of clinical investigation2004

OspC facilitates Borrelia burgdorferi invasion of Ixodes scapularis salivary glands.

Utpal Pal, Xiaofeng Yang, Manchuan Chen, Linda K Bockenstedt, John F Anderson, Richard A Flavell, Michael V Norgard, Erol Fikrig

Open access · greenAbstract read
In one paragraph

Article in The Journal of clinical investigation, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 215 papers.

0numbers the graph read from it
0cells of the map it votes in
215citing papers in PubMed
16.4field-weighted citation impact, top 1% 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

215 citing papers in PubMed, 338 citations in OpenAlex.

  1. Protective Immunity and New Vaccines for Lyme Disease.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2020
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  3. TheInfection and immunity · 2026
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  10. Infection and immunity · 2025
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  11. Tick HRF-dependent ferroptosis pathway to promote tick acquisition ofFrontiers in cellular and infection microbiology · 2025
    Article
  12. Exploring the Innate Immunity in Invertebrates.Advances in experimental medicine and biology · 2025
    Review
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
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  20. Article

155 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

8 authors at 3 institutions in 1 country.

Utpal PalSection of Rheumatology, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut 06520, USA.
Xiaofeng Yang
Manchuan Chen
Linda K Bockenstedt
John F Anderson
Richard A Flavell
Michael V Norgard
Erol Fikrig
Yale University · USConnecticut Agricultural Experiment Station · USThe University of Texas Southwestern Medical Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Outer surface protein C (OspC) is a differentially expressed major surface lipoprotein of Borrelia burgdorferi. ospC is swiftly upregulated when spirochetes leave the Ixodes scapularis tick gut, migrate to the salivary gland, and exit the arthropod vector. Here we show that OspC strongly binds to the tick salivary gland, suggesting a role for OspC in spirochete adherence to this tissue. In vivo studies using a murine model of Lyme borreliosis showed that while OspC F(ab)(2) fragments did not influence either the viability of spirochetes or ospC gene expression, they did interfere with B. burgdorferi invasion of tick salivary glands. We then generated ospC knockout spirochetes in an infectious clone of B. burgdorferi and examined them within the vector. OspC-deficient or wild-type spirochetes persisted equally within the gut of unfed ticks and multiplied during the tick engorgement; however, unlike wild-type B. burgdorferi, the mutants were unable to invade salivary glands. Salivary gland colonization of OspC-deficient spirochetes was completely restored when this mutant was complemented in trans with a plasmid harboring the wild-type ospC gene. These studies conclusively demonstrate the importance of OspC in the invasion of tick salivary glands by B. burgdorferi, a critical step in the transmission of spirochetes from the arthropod vector to the mammalian host.

Indexed as

Antigens, BacterialActinsAnimalsBacterial Outer Membrane ProteinsBorrelia burgdorferiDisease Models, AnimalEnzyme-Linked Immunosorbent AssayGenetic VectorsImmunoglobulin Fab FragmentsIxodesLipoproteinsLyme DiseaseMiceMice, SCIDMicroscopy, ConfocalModels, GeneticActinsAntigens, BacterialBacterial Outer Membrane ProteinsImmunoglobulin Fab FragmentsLipoproteinsOspC proteinRecombinant Proteins

Identifiers

PMID14722614
PMCPMC311436
OpenAlexW1967997779

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.