Evidence map›Paper›PMID 23808705›Full record

ArticleMolecular microbiology2013

A surface-exposed neuraminidase affects complement resistance and virulence of the oral spirochaete Treponema denticola.

Kurni Kurniyati, Weiyan Zhang, Kai Zhang, Chunhao Li

Open access · bronzeAbstract read
In one paragraph

Article in Molecular microbiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
3.3field-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

32 citing papers in PubMed, 48 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Frontiers in cellular and infection microbiology · 2026
    Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Review
  12. International journal of environmental research and public health · 2023
    Review
  13. Sialidase Inhibitors with Different Mechanisms.Journal of medicinal chemistry · 2022
    Review
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. Article
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 1 institution in 1 country.

Kurni KurniyatiDepartment of Oral Biology, the State University of New York at Buffalo, New York, 14214, USA.
Weiyan Zhang
Kai Zhang
Chunhao Li
University at Buffalo, State University of New York · US

Funding

Exploring New Virulence Factors of the Oral Spirochete Treponema denticolaR01DE023080 · NIDCR · VIRGINIA COMMONWEALTH UNIVERSITY · PI Chunhao Chris Li · 2013 to 2026
$5.2M
Developing Inhibitors of LuxS-dependent Quorum Sensing Systems in Oral BacteriaR01DE019667 · NIDCR · STATE UNIVERSITY OF NEW YORK AT BUFFALO · PI LI, CHUNHAO CHRIS · 2010 to 2013
$1.4M
NIDCR NIH HHS DE019667NIDCR NIH HHS DE023080NIDCR NIH HHS R01 DE019667NIDCR NIH HHS R01 DE023080
6 · The paper itself

Abstract

Neuraminidases (sialidases) catalyse the removal of terminal sialic acid from glycoconjugates. Bacterial pathogens often utilize neuraminidases to scavenge host sialic acid, which can be utilized either as a nutrient or as a decorating molecule to disguise themselves from host immune attacks. Herein, a putative neuraminidase (TDE0471) was identified in Treponema denticola, an oral spirochaete associated with human periodontitis. TDE0471 is a cell surface-exposed exo-neuraminidase that removes sialic acid from human serum proteins; it is required for T.denticola to grow in a medium that mimics gingival crevice fluid, suggesting that the spirochaete may use sialic acid as a nutrient in vivo. TDE0471 protects T.denticola from serum killing by preventing the deposition of membrane attack complexes on the bacterial cell surface. Animal studies revealed that a TDE0471-deficient mutant is less virulent than its parental wild-type strain in BALB/C mice. However, it causes a level of tissue damage similar to the wild type in complement-deficient B6.129S4-C3(tm1) (Crr) /J mice albeit the damage caused by both bacterial strains is more severe in these transgenic mice. Based on these results, we propose that T.denticola has evolved a strategy to scavenge host sialic acid using its neuraminidase, which allows the spirochaete to acquire nutrients and evade complement killing.

Indexed as

AnimalsBlood Bactericidal ActivityBlood ProteinsComplement System ProteinsCulture MediaDisease Models, AnimalGene DeletionHumansMembrane ProteinsMice, Inbred BALB CMice, Inbred C57BLMice, TransgenicN-Acetylneuraminic AcidNeuraminidaseSurvival AnalysisTreponema denticolaBlood ProteinsComplement System ProteinsCulture MediaMembrane ProteinsN-Acetylneuraminic AcidNeuraminidase

Identifiers

PMID23808705
PMCPMC3819027
OpenAlexW1934255332

What OpenQuestion holds

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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.