Evidence map›Paper›PMID 25690101›Full record

ArticleInfection and immunity2015

Transforming growth factor β2 promotes transcription of COX2 and EP4, leading to a prostaglandin E2-driven autostimulatory loop that enhances virulence of Theileria annulata-transformed macrophages.

Malak Haidar, Nadia Echebli, Ying Ding, Everlyn Kamau, Gordon Langsley

Abstract read
In one paragraph

Article in Infection and immunity, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
–field-weighted citation impact
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

20 citing papers in PubMed.

  1. Article
  2. Review
  3. Review
  4. Review
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Review
  14. Article
  15. Article
  16. PKA and Apicomplexan Parasite Diseases.Hormone and metabolic research = Hormon- und Stoffwechselforschung = Hormones et metabolisme · 2017
    Review
  17. Article
  18. Review
  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

5 authors.

Malak HaidarLaboratoire de Biologie Cellulaire Comparative des Apicomplexes, Faculté de Médicine, Université Paris Descartes-Sorbonne Paris Cité, Paris, France, and Inserm U1016, Cnrs UMR8104, Cochin Institute, Paris, France.ORCID http://orcid.org/0000-0001-6797-932X
Nadia EchebliLaboratoire de Biologie Cellulaire Comparative des Apicomplexes, Faculté de Médicine, Université Paris Descartes-Sorbonne Paris Cité, Paris, France, and Inserm U1016, Cnrs UMR8104, Cochin Institute, Paris, France.
Ying DingLaboratoire de Biologie Cellulaire Comparative des Apicomplexes, Faculté de Médicine, Université Paris Descartes-Sorbonne Paris Cité, Paris, France, and Inserm U1016, Cnrs UMR8104, Cochin Institute, Paris, France.
Everlyn KamauLaboratoire de Biologie Cellulaire Comparative des Apicomplexes, Faculté de Médicine, Université Paris Descartes-Sorbonne Paris Cité, Paris, France, and Inserm U1016, Cnrs UMR8104, Cochin Institute, Paris, France.
Gordon LangsleyLaboratoire de Biologie Cellulaire Comparative des Apicomplexes, Faculté de Médicine, Université Paris Descartes-Sorbonne Paris Cité, Paris, France, and Inserm U1016, Cnrs UMR8104, Cochin Institute, Paris, France gordon.langsley@inserm.fr.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Transforming growth factor beta (TGF-β) is a pleiotropic cytokine known to regulate cell growth, differentiation, and motility and is a potent modulator of immune function. TGF-β consequently plays a central role in carcinogenesis, and a dampened TGF-β2 response by Theileria annulata-infected monocytes/macrophages underpins disease resistance to tropical theileriosis. Here, we show that concomitant with the loss of TGF-β2 production, there is ablated expression of COX2 and EP4, which leads to a drop in cyclic AMP (cAMP) levels and, consequently, reduced activation of protein kinase A (PKA) and EPAC. This ablated phenotype can be rescued in attenuated macrophages by the addition of exogenous TGF-β2, which reactivates the expression of COX2 and EP4 while repressing that of protein kinase inhibitor gamma (PKIG) to the levels in virulent macrophages. TGF-β2 therefore promotes the adhesion and invasiveness of virulent macrophages by modulating COX2, EP4, and PKIG transcription to initiate a prostaglandin E2 (PGE2)-driven autostimulatory loop that augments PKA and EPAC activities. A virulence phenotype stemming from the double activation of PKA and EPAC is the induction of a CREB-mediated transcriptional program and the upregulation of JAM-L- and integrin 4αβ1-mediated adhesion of Theileria-infected macrophages.

Indexed as

Transcription, GeneticAnimalsCell AdhesionCyclooxygenase 2DinoprostoneGene Expression RegulationHost-Pathogen InteractionsMacrophagesReceptors, Prostaglandin E, EP4 SubtypeTheileria annulataTransforming Growth Factor beta2Cyclooxygenase 2DinoprostonePTGER4 protein, humanPTGS2 protein, humanReceptors, Prostaglandin E, EP4 SubtypeTransforming Growth Factor beta2

Identifiers

PMID25690101
PMCPMC4399038

What Socratic 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 Socratic graph.