Evidence map›Paper›PMID 21270122›Full record

ArticleThe Journal of biological chemistry2011

Deconstructing tick saliva: non-protein molecules with potent immunomodulatory properties.

Carlo José F Oliveira, Anderson Sá-Nunes, Ivo M B Francischetti, Vanessa Carregaro, Elen Anatriello, João S Silva, Isabel K F de Miranda Santos, José M C Ribeiro, Beatriz R Ferreira

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 75 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
75citing papers in PubMed, 2 pooled it
6.3field-weighted citation impact, top 2% 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

75 citing papers in PubMed, 2 syntheses or guidelines pooled it, 124 citations in OpenAlex.

  1. Guideline
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  11. A simple non-invasive method to collect soft tick saliva reveals differences inFrontiers in cellular and infection microbiology · 2023
    Article
  12. Article
  13. Article
  14. Review
  15. Review
  16. What do we know about the microbiome ofFrontiers in cellular and infection microbiology · 2022
    Review
  17. Review
  18. Review
  19. Article
  20. Article

15 more citing papers are in PubMed but not listed here.

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

9 authors at 2 institutions in 2 countries.

Carlo José F OliveiraDepartment of Biochemistry and Immunology, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil.
Anderson Sá-Nunes
Ivo M B Francischetti
Vanessa Carregaro
Elen Anatriello
João S Silva
Isabel K F de Miranda Santos
José M C Ribeiro
Beatriz R Ferreira
Universidade de São Paulo · BRVector Oncology (United States) · US

Funding

Vector-Borne Diseases: Biology Of Vector Host RelationshipZIAAI000810 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI RIBEIRO, JOSE · 2009 to 2025
$20.8M
Intramural NIH HHS
6 · The paper itself

Abstract

Dendritic cells (DCs) are powerful initiators of innate and adaptive immune responses. Ticks are blood-sucking ectoparasite arthropods that suppress host immunity by secreting immunomodulatory molecules in their saliva. Here, compounds present in Rhipicephalus sanguineus tick saliva with immunomodulatory effects on DC differentiation, cytokine production, and costimulatory molecule expression were identified. R. sanguineus tick saliva inhibited IL-12p40 and TNF-α while potentiating IL-10 cytokine production by bone marrow-derived DCs stimulated by Toll-like receptor-2, -4, and -9 agonists. To identify the molecules responsible for these effects, we fractionated the saliva through microcon filtration and reversed-phase HPLC and tested each fraction for DC maturation. Fractions with proven effects were analyzed by micro-HPLC tandem mass spectrometry or competition ELISA. Thus, we identified for the first time in tick saliva the purine nucleoside adenosine (concentration of ∼110 pmol/μl) as a potent anti-inflammatory salivary inhibitor of DC cytokine production. We also found prostaglandin E(2) (PGE(2) ∼100 nM) with comparable effects in modulating cytokine production by DCs. Both Ado and PGE(2) inhibited cytokine production by inducing cAMP-PKA signaling in DCs. Additionally, both Ado and PGE(2) were able to inhibit expression of CD40 in mature DCs. Finally, flow cytometry analysis revealed that PGE(2), but not Ado, is the differentiation inhibitor of bone marrow-derived DCs. The presence of non-protein molecules adenosine and PGE(2) in tick saliva indicates an important evolutionary mechanism used by ticks to subvert host immune cells and allow them to successfully complete their blood meal and life cycle.

Indexed as

AnimalsBone Marrow CellsCD40 AntigensCells, CulturedCyclic AMP-Dependent Protein KinasesDendritic CellsDinoprostoneImmunologic FactorsInterleukin-10Interleukin-12 Subunit p40MaleMiceRhipicephalus sanguineusSalivaSignal TransductionToll-Like ReceptorsCD40 AntigensCyclic AMP-Dependent Protein KinasesDinoprostoneIL10 protein, mouseImmunologic FactorsInterleukin-10Interleukin-12 Subunit p40Toll-Like ReceptorsTumor Necrosis Factor-alpha

Identifiers

PMID21270122
PMCPMC3064151
OpenAlexW2094953064

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.