Evidence map›Paper›PMID 27694949›Full record

ArticleNature microbiology2016

A quorum-sensing signal promotes host tolerance training through HDAC1-mediated epigenetic reprogramming.

Arunava Bandyopadhaya, Amy Tsurumi, Damien Maura, Kate L Jeffrey, Laurence G Rahme

Open access · greenAbstract read
In one paragraph

Article in Nature microbiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 1 pooled it
2.6field-weighted citation impact, top 10% 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

41 citing papers in PubMed, 1 synthesis or guideline pooled it, 79 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Review
  6. Effects ofFrontiers in microbiology · 2026
    Article
  7. Review
  8. Article
  9. Revealing the impact ofFrontiers in immunology · 2025
    Article
  10. Frontiers in immunology · 2025
    Review
  11. Article
  12. Article
  13. Unveiling the modulation ofFrontiers in microbiology · 2024
    Article
  14. Mechanisms of the Quorum Sensing Systems ofCurrent medicinal chemistry · 2024
    Review
  15. Review
  16. Article
  17. Review
  18. Article
  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 at 1 institution in 1 country.

Arunava BandyopadhayaDepartment of Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114, USA.
Amy TsurumiDepartment of Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114, USA.ORCID http://orcid.org/0000-0001-7678-169X
Damien MauraDepartment of Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114, USA.
Kate L JeffreyGastrointestinal Unit and Center for the Study of Inflammatory Bowel Disease, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, USA.
Laurence G RahmeDepartment of Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114, USA.
Harvard University · US

Funding

Pilot & Feasibility ProgramP30DK043351 · NIDDK · MASSACHUSETTS GENERAL HOSPITAL · PI RAYMOND T CHUNG · 1991 to 2026
$35.3M
Interruption of Signaling-Mediated Bacterial Persistent InfectionsR33AI105902 · NIAID · MASSACHUSETTS GENERAL HOSPITAL · PI RAHME, LAURENCE G · 2015 to 2017
$1.8M
NIAID NIH HHS R33 AI105902NIDDK NIH HHS P30 DK043351
6 · The paper itself

Abstract

The mechanisms by which pathogens evade elimination without affecting host fitness are not well understood. For the pathogen Pseudomonas aeruginosa, this evasion appears to be triggered by excretion of the quorum-sensing molecule 2-aminoacetophenone, which dampens host immune responses and modulates host metabolism, thereby enabling the bacteria to persist at a high burden level. Here, we examined how 2-aminoacetophenone trains host tissues to become tolerant to a high bacterial burden, without compromising host fitness. We found that 2-aminoacetophenone regulates histone deacetylase 1 expression and activity, resulting in hypo-acetylation of lysine 18 of histone H3 at pro-inflammatory cytokine loci. Specifically, 2-aminoacetophenone induced reprogramming of immune cells occurs via alterations in histone acetylation of immune cytokines in vivo and in vitro. This host epigenetic reprograming, which was maintained for up to 7 days, dampened host responses to subsequent exposure to 2-aminoacetophenone or other unrelated pathogen-associated molecules. The process was found to involve a distinct molecular mechanism of host chromatin regulation. Inhibition of histone deacetylase 1 prevented the immunomodulatory effects of 2-aminoacetophenone. These observations provide the first mechanistic example of a quorum-sensing molecule regulating a host epigenome to enable tolerance of infection. These insights have enormous potential for developing preventive treatments against bacterial infections.

Indexed as

Host-Pathogen InteractionsAcetophenonesAnimalsCytokinesEpigenesis, GeneticHistone Deacetylase 1HumansImmune EvasionImmune ToleranceMicePseudomonas aeruginosaRAW 264.7 CellsTHP-1 Cells2-aminoacetophenoneAcetophenonesCytokinesHDAC1 protein, humanHistone Deacetylase 1

Identifiers

PMID27694949
PMCPMC5066596
OpenAlexW2529429640

What OpenQuestion holds

Textmetadata
LicenceTDM
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.