Evidence map›Paper›PMID 17438273›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2007

Borrelia burgdorferi intercepts host hormonal signals to regulate expression of outer surface protein A.

Mark R Scheckelhoff, Sam R Telford, Mary Wesley, Linden T Hu

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
3.6field-weighted citation impact, top 7% 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

22 citing papers in PubMed, 46 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Plasticity in early immune evasion strategies of a bacterial pathogen.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  5. Article
  6. Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Review
  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.

Mark R ScheckelhoffDivision of Geographic Medicine and Infectious Diseases, Tupper Research Institute, Tufts-New England Medical Center, 750 Washington Street, Boston, MA 02111, USA.
Sam R Telford
Mary Wesley
Linden T Hu
Tufts Medical Center · USTufts University · US

Funding

Tufts Post-Baccalaureate Research Education ProgramR25GM066567 · NIGMS · TUFTS UNIVERSITY BOSTON · PI RIOS, MARIBEL · 2002 to 2024
$5.7M
Infectious Disease Training-Pathogenesis/Host ResponseT32AI007329 · NIAID · TUFTS MEDICAL CENTER · PI HU, LINDEN T · 1988 to 2018
$4.1M
PEPTIDE TRANSPORT AND SIGNALING IN BORRELIA BURGDORFERIR01AI044240 · NIAID · TUFTS MEDICAL CENTER · PI HU, LINDEN T · 2000 to 2004
$1.6M
Development of a vaccine for murine Lyme diseaseU01AI058266 · NIAID · TUFTS MEDICAL CENTER · PI HU, LINDEN T · 2003 to 2006
$907k
NIAID NIH HHS R01 AI044240NIAID NIH HHS R01 AI 44240NIAID NIH HHS T32 AI 007329NIAID NIH HHS T32 AI007329NIAID NIH HHS U01 AI 058266NIAID NIH HHS U01 AI058266NIGMS NIH HHS R25 GM066567
6 · The paper itself

Abstract

The Borrelia burgdorferi infectious cycle requires that the organism adapt to vast differences in environmental conditions found in its tick and mammalian hosts. Previous studies have shown that B. burgdorferi accomplishes this accommodation in part by regulating expression of its surface proteins. Outer surface protein A (OspA) is a borrelial protein important in colonization of the tick midgut. OspA is up-regulated when the organism is in its tick host and down-regulated when it is in a mammalian host. However, little is known about how it is up-regulated again in a mammalian host in preparation for entry into a feeding tick. Here, we report that the host neuroendocrine stress hormones, epinephrine and norepinephrine, are specifically bound by B. burgdorferi and result in increased expression of OspA. This recognition is specific and blocked by competitive inhibitors of human adrenergic receptors. To determine whether recognition of catecholamines, which are likely to be present at the site of a tick bite, may play a role in preparing the organism for reentry into a tick from a mammalian host, we administered a beta-adrenergic blocker, propranolol, to infected mice. Propranolol significantly reduced uptake of B. burgdorferi by feeding ticks and decreased expression of OspA in B. burgdorferi recovered from ticks that fed on propranolol-treated mice. Our studies suggest that B. burgdorferi may co-opt host neuroendocrine signals to inform the organism of local changes that predict the presence of its next host and allow it to prepare for transition to a new environment.

Indexed as

Adrenergic beta-AntagonistsAnimalsAntigens, SurfaceBacterial Outer Membrane ProteinsBacterial VaccinesBorrelia burgdorferiCatecholaminesEpinephrineFeeding BehaviorLipoproteinsLyme DiseaseMiceNorepinephrinePropranololSignal TransductionTicksAdrenergic beta-AntagonistsAntigens, SurfaceBacterial Outer Membrane ProteinsBacterial VaccinesCatecholaminesEpinephrineLipoproteinsNorepinephrineOspA proteinPropranolol

Identifiers

PMID17438273
PMCPMC1855410
OpenAlexW2069715508

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.