Evidence map›Paper›PMID 17923521›Full record

ArticleInfection and immunity2007

Treponema denticola activates mitogen-activated protein kinase signal pathways through Toll-like receptor 2.

John Ruby, Kunal Rehani, Michael Martin

Open access · bronzeAbstract read
In one paragraph

Article in Infection and immunity, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.1field-weighted citation impact, top 22% 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

12 citing papers in PubMed, 27 citations in OpenAlex.

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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

3 authors at 2 institutions in 1 country.

John RubyDepartment of Pediatric Dentistry, School of Dentistry, SDB 314, 1530 3rd Ave. S., The University of Alabama at Birmingham, Birmingham, AL 35294-0007, USA. john_ruby@cs1.dental.uab.edu
Kunal Rehani
Michael Martin
University of Louisville · USUniversity of Alabama at Birmingham · US

Funding

Mucosal HIV and Immunobiology CenterR24DK064400 · NIDDK · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI SMITH, PHILLIP D · 2003 to 2012
$4.8M
Treponema Denticola-Innate Immune System InteractionsR03DE016040 · NIDCR · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI RUBY, JOHN DAWSON · 2005 to 2006
$144k
NIDCR NIH HHS R03 DE016040NIDCR NIH HHS R03 DE016040-02NIDDK NIH HHS P30 DK064400NIDDK NIH HHS R24 DK064400
6 · The paper itself

Abstract

Treponema denticola, a spirochete indigenous to the oral cavity, is associated with host inflammatory responses to anaerobic polymicrobial infections of the root canal, periodontium, and alveolar bone. However, the cellular mechanisms responsible for the recognition of T. denticola by the innate immune system and the underlying cell signaling pathways that regulate the inflammatory response to T. denticola are currently unresolved. In this study, we demonstrate that T. denticola induces innate immune responses via the utilization of Toll-like receptor 2 (TLR2) but not TLR4. Assessment of TLR2/1 and TLR2/6 heterodimers revealed that T. denticola predominantly utilizes TLR2/6 for the induction of cellular responses. Analysis of the mitogen-activated protein kinase (MAPK) signaling pathway in T. denticola-stimulated monocytes identified a prolonged up-regulation of the MAPK extracellular signal-related kinase 1/2 (ERK1/2) and p38, while no discernible increase in phospho-c-Jun N-terminal kinase 1/2 (JNK1/2) levels was observed. With the aid of pharmacological inhibitors selectively targeting ERK1/2 via the mitogen-activated protein kinase/extracellular signal-related kinase 1/2 kinase and p38, we further demonstrate that ERK1/2 and p38 play a major role in T. denticola-mediated pro- and anti-inflammatory cytokine production.

Indexed as

AnimalsCytokinesEnzyme ActivationFemaleHumansImmunity, InnateMacrophagesMAP Kinase Signaling SystemMiceMice, Inbred C57BLMitogen-Activated Protein Kinase 1Mitogen-Activated Protein Kinase 3p38 Mitogen-Activated Protein KinasesToll-Like Receptor 2Toll-Like Receptor 6Treponema denticolaCytokinesMitogen-Activated Protein Kinase 1Mitogen-Activated Protein Kinase 3p38 Mitogen-Activated Protein KinasesToll-Like Receptor 2Toll-Like Receptor 6

Identifiers

PMID17923521
PMCPMC2168321
OpenAlexW2131175384

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.