Cited by 847Phagocytosis and Immune RegulationCell death mechanisms and regulationInflammasome and immune disorders

The Interaction Between Signal Regulatory Protein Alpha (SIRPα) and CD47: Structure, Function, and Therapeutic Target

Barclay, A. Neil, van den Berg, Timo K.·2014·Annual Review of Immunology

Abstract

CD47 is a broadly expressed membrane protein that interacts with the myeloid inhibitory immunoreceptor SIRPα (also termed CD172a or SHPS-1). SIRPα is the prototypic member of the SIRP paired receptor family of closely related SIRP proteins. Engagement of SIRPα by CD47 provides a downregulatory signal that inhibits host cell phagocytosis, and CD47 therefore functions as a “don't-eat-me” signal. Here, we discuss recent structural analysis of CD47-SIRPα interactions and implications of this for the function and evolution of SIRPα and paired receptors in general. Furthermore, we review the proposed roles of CD47-SIRPα interactions in phagocytosis, (auto)immunity, and host defense, as well as its potential significance as a therapeutic target in cancer and inflammation and for improving graft survival in xenotransplantation.

Integrity signals

Registry

Crossref · 10.1146/annurev-immunol-032713-120142

Cites

156 of 156 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • CD47 antagonizes surface CALR by inhibiting phagocytosis by DCs and macrophages via SIRPA.

    “Of note, in some preclinical and clinical instances, the activity of surface-exposed CALR is antagonized by CD47, which operates as a “don’t eat me” signal as it inhibits phagocytosis by DCs and macrophages upon interaction with signal regulatory protein alpha (SIRPA) [885, 886].”

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Barclay, A. N., & van den Berg, T. K.
Affiliations
  • University of Oxford (GB)
  • Sanquin Research and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, 1066 CX Amsterdam, The Netherlands;
Venue
Annual Review of Immunology
Published
2014-03-21
Volume
32
Issue
1
Pages
25-50
ISSN
  • 0732-0582 (ISSN-L)
  • 1545-3278
OpenAlex
W2139418176
Cited by
841
References
155
Citations by year
2026: 63 · 2025: 107 · 2024: 108 · 2023: 84 · 2022: 77 · 2021: 89 · 2020: 89 · 2019: 51 · 2018: 44 · 2017: 60 · 2016: 32 · 2015: 26 · 2014: 11
FWCI
2.01
Type
journal article
Language
en
Open access
closed
Locations
  • Annual Review of Immunology (publishedVersion)
  • PubMed (publishedVersion)
  • Amsterdam UMC (VU Amsterdam) - Institutional Repository (publishedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
  • Pure Amsterdam UMC (submittedVersion)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Phagocytosis and Immune Regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Inflammasome and immune disorders
Keywords
CD47, SIRPα, don't eat me signal, phagocytosis, immune evasion, autoimmunity, host defense, cancer immunotherapy, inflammation, xenotransplantation, graft survival, receptor evolution
MeSH terms
Animals, Antigens, Differentiation, Autoimmune Diseases, Dendritic Cells, Multigene Family, Hematologic Diseases, Humans, Neoplasms, Phagocytosis, Protein Binding, Receptors, Immunologic, T-Lymphocytes, Signal Transduction, CD47 Antigen, Immunological Synapses, Molecular Targeted Therapy

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review