Evidence map›Paper›PMID 18426886›Full record

ArticleInfection and immunity2008

Suppression of T-lymphocyte activation and chemotaxis by the adenylate cyclase toxin of Bordetella pertussis.

Silvia Rossi Paccani, Federica Dal Molin, Marisa Benagiano, Daniel Ladant, Mario M D'Elios, Cesare Montecucco, Cosima T Baldari

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 1 pooled it
4.1field-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

38 citing papers in PubMed, 1 synthesis or guideline pooled it, 61 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Article
  6. Frontiers in cellular and infection microbiology · 2023
    Article
  7. Review
  8. Conquering the host:Frontiers in microbiology · 2022
    Review
  9. Review
  10. Article
  11. Article
  12. Microbiology spectrum · 2019
    Review
  13. Review
  14. Review
  15. Bioengineering ofToxins · 2018
    Review
  16. Compartmentalized Cyclic AMP Production by theFrontiers in immunology · 2018
    Article
  17. Review
  18. Review
  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

7 authors at 4 institutions in 2 countries.

Silvia Rossi PaccaniDepartment of Evolutionary Biology, University of Siena, Via Aldo Moro 2, 53100 Siena, Italy.
Federica Dal Molin
Marisa Benagiano
Daniel Ladant
Mario M D'Elios
Cesare Montecucco
Cosima T Baldari
University of Florence · ITUniversity of Padua · ITUniversity of Siena · ITInstitut Pasteur · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The adenylate cyclase toxin (CyaA) released by Bordetella pertussis is an essential virulence factor for colonization of the host. This toxin inhibits migration and activation of phagocytes, thereby preventing bacterial killing. In addition, CyaA interferes with the initiation of adaptive immunity by misdirecting dendritic cell differentiation to a suppressive rather than stimulatory phenotype. Here we show that CyaA directly affects adaptive responses by catalyzing cyclic AMP (cAMP) production in peripheral blood lymphocytes. Treatment with CyaA resulted in profound impairment of T-lymphocyte activation and chemotaxis. These effects resulted from inhibition of T-cell antigen receptor and chemokine receptor signaling via a cAMP/protein kinase A (PKA)-dependent pathway. A comparison of the activities of CyaA on T-cell and macrophage activation and migration revealed that the biological effects of the toxin were paralleled by inhibition of the activation of mitogen-activated protein (MAP) kinases, highlighting the conclusion that the ubiquitous and evolutionarily conserved MAP kinase modules are common targets of the PKA-mediated immunosuppressant activities of CyaA and underlining the potential of cAMP-elevating toxins as a means of evasion of immunity by bacterial pathogens.

Indexed as

Chemotaxis, LeukocyteLymphocyte ActivationAdenylate Cyclase ToxinBordetella pertussisCell Migration InhibitionCyclic AMPCyclic AMP-Dependent Protein KinasesEnzyme ActivationHumansT-LymphocytesVirulence Factors, BordetellaAdenylate Cyclase ToxinCyclic AMPCyclic AMP-Dependent Protein KinasesVirulence Factors, Bordetella

Identifiers

PMID18426886
PMCPMC2446734
OpenAlexW2040668072

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.