Evidence map›Paper›PMID 26537724›Full record

ArticleJournal of applied oral science : revista FOB2015

Differential expression of CC chemokines (CCLs) and receptors (CCRs) by human T lymphocytes in response to different Aggregatibacter actinomycetemcomitans serotypes.

Carla Alvarez, Alvaro Benítez, Leticia Rojas, Myriam Pujol, Paola Carvajal, Jaime Díaz-Zúñiga, Rolando Vernal

RetractedOpen access · diamondAbstract read
In one paragraph

Article in Journal of applied oral science : revista FOB, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It has been retracted, and should not be counted. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.7field-weighted citation impact, top 26% 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

8 citing papers in PubMed, 14 citations in OpenAlex.

  1. CCL5's Role in Periodontal Disease: A Narrative Review.International journal of molecular sciences · 2023
    Review
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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

7 authors at 1 institution in 1 country.

Carla AlvarezLaboratorio de Biología Periodontal, Facultad de Odontología, Universidad de Chile, Santiago, Chile.
Alvaro BenítezLaboratorio de Biología Periodontal, Facultad de Odontología, Universidad de Chile, Santiago, Chile.
Leticia RojasLaboratorio de Biología Periodontal, Facultad de Odontología, Universidad de Chile, Santiago, Chile.
Myriam PujolLaboratorio de Biología Periodontal, Facultad de Odontología, Universidad de Chile, Santiago, Chile.
Paola CarvajalDepartamento de Odontología Conservadora, Facultad de Odontología, Universidad de Chile, Santiago, Chile.
Jaime Díaz-ZúñigaDepartamento de Odontología Conservadora, Facultad de Odontología, Universidad de Chile, Santiago, Chile.
Rolando VernalLaboratorio de Biología Periodontal, Facultad de Odontología, Universidad de Chile, Santiago, Chile.
University of Chile · CL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

unlabelledIn Aggregatibacter actinomycetemcomitans, different serotypes have been described based on LPS antigenicity. Recently, our research group has reported a differential immunogenicity when T lymphocytes were stimulated with these different serotypes. In particular, it was demonstrated that the serotype b of A. actinomycetemcomitans has a stronger capacity to trigger Th1- and Th17-type cytokine production.

objectiveThis study aimed to quantify the expression of different CC chemokines (CCLs) and receptors (CCRs) in T lymphocytes stimulated with the differentA. actinomycetemcomitans serotypes. In addition, the expression of the transcription factors T-bet, GATA-3, RORC2, and Foxp3, master-switch genes implied in the Th1, Th2, Th17, and T-regulatory differentiation, respectively, was analysed in order to determine T-cell phenotype-specific patterns of CCL and CCR expression upon A. actinomycetemcomitans stimulation. MATERIAL AND

methodsHuman naïve CD4+ T lymphocytes were obtained from healthy subjects and stimulated with autologous dendritic cells primed with the differentA. actinomycetemcomitans serotypes. The expression levels for the chemokines CCL1, CCL2, CCL3, CCL5, CCL11, CCL17, CCL20, CCL21, CCL25, and CCL28, as well as the chemokine receptors CCR1, CCR2, CCR3, CCR4, CCR5, CCR6, CCR7, CCR8, CCR9, and CCR10 were quantified by qPCR. Similarly, the expression levels for the transcription factors T-bet, GATA-3, RORC2, and Foxp3 were quantified and correlated with the CCL and CCR expression levels.

resultsHigher expression levels of CCL2, CCL3, CCL5, CCL20, CCL21, CCL28, CCR1, CCR2, CCR5, CCR6, CCR7, and CCR9 were detected in T lymphocytes stimulated with the serotype b of A. actinomycetemcomitans compared with the other serotypes. In addition, these higher expression levels of CCLs and CCRs positively correlated with the increased levels of T-bet and RORC2 when T lymphocytes were stimulated with the serotype b.

conclusionA T-lymphocyte response biased towards a Th1- and Th17-pattern of CCL and CCR expression was detected under stimulation with the serotype b ofA. actinomycetemcomitans.

Indexed as

AdultAggregatibacter actinomycetemcomitansAntigens, Differentiation, T-LymphocyteCell DifferentiationCells, CulturedChemokines, CCDendritic CellsFemaleFlow CytometryHumansLymphocyte ActivationMalePolymerase Chain ReactionReceptors, CCRSerogroupT-LymphocytesAntigens, Differentiation, T-LymphocyteChemokines, CCReceptors, CCR

Identifiers

PMID26537724
PMCPMC4621946
OpenAlexW2180276528

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.