Evidence map›Paper›PMID 30773630›Full record

ArticleImmunology2019

Daily variation in macrophage phagocytosis is clock-independent and dispensable for cytokine production.

Sarah S Geiger, Annie M Curtis, Luke A J O'Neill, Richard M Siegel

Open access · hybridAbstract read
In one paragraph

Article in Immunology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.7field-weighted citation impact, top 17% 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

21 citing papers in PubMed, 31 citations in OpenAlex.

  1. Trial
  2. Review
  3. Review
  4. Review
  5. Review
  6. Article
  7. Article
  8. Cholinergic Polarization of Human Macrophages.International journal of molecular sciences · 2023
    Review
  9. Review
  10. Review
  11. Review
  12. Article
  13. Review
  14. Nuclear Receptors and Clock Components in Cardiovascular Diseases.International journal of molecular sciences · 2021
    Review
  15. The Circadian Clock and Viral Infections.Journal of biological rhythms · 2021
    Review
  16. Article
  17. Review
  18. Article
  19. The clock geneProceedings of the National Academy of Sciences of the United States of America · 2020
    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

4 authors at 3 institutions in 2 countries.

Sarah S GeigerImmunoregulation Section, Autoimmunity Branch, NIAMS, National Institutes of Health, Bethesda, MD, USA.ORCID 0000-0001-8908-0112
Annie M CurtisImmune Clock Laboratory, Tissue and Engineering Regenerative Group and Molecular and Cellular Therapeutics Department, Royal College of Surgeons in Ireland , Dublin, Ireland.
Luke A J O'NeillTrinity Biomedical Science Institute, Trinity College Dublin, Dublin, Ireland.
Richard M SiegelImmunoregulation Section, Autoimmunity Branch, NIAMS, National Institutes of Health, Bethesda, MD, USA.
National Institutes of Health · USRoyal College of Surgeons in Ireland · IETrinity College Dublin · IE

Funding

NIAMS Light Imaging FacilityZICAR041186 · NIAMS · NATIONAL INSTITUTE OF ARTHRITIS AND MUSCULOSKELETAL AND SKIN DISEASES · PI RANDAZZO, DAVIDE · 2010 to 2025
$18.2M
TNF-receptors and programmed cell death in regulation of autoimmunityZIAAR041133 · NIAMS · NATIONAL INSTITUTE OF ARTHRITIS AND MUSCULOSKELETAL AND SKIN DISEASES · PI SIEGEL, RICHARD M · 2009 to 2019
$9.3M
Wellcome Trust
6 · The paper itself

Abstract

Innate immune responses vary in a circadian manner, and more recent investigations aim to understand the underlying molecular mechanisms. Cytokine production varies significantly over the course of a day depending on the time of stimulation by pathogens or Toll-like receptor ligands, and multiple signaling pathways linked to the cell-autonomous circadian clock modulate innate immunity. Recognition of foreign material, especially by innate immune cells, engages a myriad of receptors, which trigger inflammatory responses, as well as endocytosis and degradation and/or processing for antigen presentation. Because of the close connection between particle engulfment and inflammation, it has been proposed that phagocytic uptake may drive cytokine production in phagocytes. Here we show that bacterial particle ingestion by mouse peritoneal macrophages displays temporal variation, but is independent of the cell-intrinsic circadian clock in an ex vivo setting. Although cytokine production is dependent on phagocytosis, uptake capacity across 12 hr does not translate into 24-hr rhythms in cytokine production. In vivo, time-of-day variations in phagocytic capacity are not found, whereas a time of day and clock-dependent cytokine response is maintained. These data show that efficiency of bacterial phagocytosis and the 24-hr rhythmicity of cytokine production by macrophages are independent of one another and should be studied separately.

Indexed as

PhagocytosisAnimalsCircadian ClocksCytokinesMacrophages, PeritonealMiceMice, KnockoutCytokinesCircadianex vivoin vivomacrophagesphagocytosis

Identifiers

PMID30773630
PMCPMC6526659
OpenAlexW2918122213

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.