Evidence map›Paper›PMID 34177884›Full record

ReviewFrontiers in immunology2021

The Phagocytic Code Regulating Phagocytosis of Mammalian Cells.

Tom O J Cockram, Jacob M Dundee, Alma S Popescu, Guy C Brown

Open access · goldAbstract readReview
In one paragraph

Review in Frontiers in immunology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed
5.5field-weighted citation impact, top 3% 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

65 citing papers in PubMed, 111 citations in OpenAlex.

  1. Macrophage Trogocytosis of Tumor Cells Drives the Immunosuppression of Tumor Microenvironment.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Review
  7. Microglial phagocytosis in Alzheimer disease.Nature reviews. Neurology · 2026
    Review
  8. Review
  9. Review
  10. Article
  11. Submicron-Sampling of Living Cells by Macrophages.bioRxiv : the preprint server for biology · 2025
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Polyploidy promotes transformation of epithelial cells into nonprofessional phagocytes.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  17. Review
  18. Article
  19. Review
  20. Review

5 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

4 authors at 1 institution in 1 country.

Tom O J CockramDepartment of Biochemistry, University of Cambridge, Cambridge, United Kingdom.
Jacob M DundeeDepartment of Biochemistry, University of Cambridge, Cambridge, United Kingdom.
Alma S PopescuDepartment of Biochemistry, University of Cambridge, Cambridge, United Kingdom.
Guy C BrownDepartment of Biochemistry, University of Cambridge, Cambridge, United Kingdom.
University of Cambridge · GB

Funding

Biotechnology and Biological Sciences Research CouncilMedical Research Council MR/L010593Medical Research Council MR/L010593/1
6 · The paper itself

Abstract

Mammalian phagocytes can phagocytose (i.e. eat) other mammalian cells in the body if they display certain signals, and this phagocytosis plays fundamental roles in development, cell turnover, tissue homeostasis and disease prevention. To phagocytose the correct cells, phagocytes must discriminate which cells to eat using a 'phagocytic code' - a set of over 50 known phagocytic signals determining whether a cell is eaten or not - comprising find-me signals, eat-me signals, don't-eat-me signals and opsonins. Most opsonins require binding to eat-me signals - for example, the opsonins galectin-3, calreticulin and C1q bind asialoglycan eat-me signals on target cells - to induce phagocytosis. Some proteins act as 'self-opsonins', while others are 'negative opsonins' or 'phagocyte suppressants', inhibiting phagocytosis. We review known phagocytic signals here, both established and novel, and how they integrate to regulate phagocytosis of several mammalian targets - including excess cells in development, senescent and aged cells, infected cells, cancer cells, dead or dying cells, cell debris and neuronal synapses. Understanding the phagocytic code, and how it goes wrong, may enable novel therapies for multiple pathologies with too much or too little phagocytosis, such as: infectious disease, cancer, neurodegeneration, psychiatric disease, cardiovascular disease, ageing and auto-immune disease.

Indexed as

AnimalsCalreticulinCellular SenescenceHumansIntercellular Adhesion Molecule-3Opsonin ProteinsPhagocytosisPhosphatidylserinesPolysaccharidesSignal TransductionSynapsesCalreticulinIntercellular Adhesion Molecule-3Opsonin ProteinsPhosphatidylserinesPolysaccharidescancercellimmunityneurodegenerationopsoninphagocytosissignalsignalling

Identifiers

PMID34177884
PMCPMC8220072
OpenAlexW3169911325

What OpenQuestion holds

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LicenceCC BY
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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.