Evidence map›Paper›PMID 37217603›Full record

ReviewCancer immunology, immunotherapy : CII2023

The TSP1-CD47-SIRPα interactome: an immune triangle for the checkpoint era.

Enrique Montero, Jeffrey S Isenberg

Open access · hybridAbstract readReview
In one paragraph

Review in Cancer immunology, immunotherapy : CII, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
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

18 citing papers in PubMed, 16 citations in OpenAlex.

  1. Review
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  3. Defective efferocytosis in diabetes: molecular mechanisms and emerging therapeutic strategies.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2026
    Review
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  16. The biological roles of CD47 in ovarian cancer progression.Cancer immunology, immunotherapy : CII · 2024
    Review
  17. Tolerating CD47.Clinical and translational medicine · 2024
    Review
  18. 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

2 authors at 1 institution in 1 country.

Enrique MonteroDepartment of Diabetes Immunology, City of Hope National Medical Center, 1500 Duarte Road, Duarte, CA, 91010, USA.
Jeffrey S IsenbergDepartment of Diabetes Complications and Metabolism, City of Hope National Medical Center, 1500 Duarte Road, Duarte, CA, 91010, USA. jisenberg@coh.org.ORCID https://orcid.org/0000-0002-4221-1688
City Of Hope National Medical Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The use of treatments, such as programmed death protein 1 (PD1) or cytotoxic T lymphocyte-associated antigen 4 (CTLA-4) antibodies, that loosen the natural checks upon immune cell activity to enhance cancer killing have shifted clinical practice and outcomes for the better. Accordingly, the number of antibodies and engineered proteins that interact with the ligand-receptor components of immune checkpoints continue to increase along with their use. It is tempting to view these molecular pathways simply from an immune inhibitory perspective. But this should be resisted. Checkpoint molecules can have other cardinal functions relevant to the development and use of blocking moieties. Cell receptor CD47 is an example of this. CD47 is found on the surface of all human cells. Within the checkpoint paradigm, non-immune cell CD47 signals through immune cell surface signal regulatory protein alpha (SIRPα) to limit the activity of the latter, the so-called trans signal. Even so, CD47 interacts with other cell surface and soluble molecules to regulate biogas and redox signaling, mitochondria and metabolism, self-renewal factors and multipotency, and blood flow. Further, the pedigree of checkpoint CD47 is more intricate than supposed. High-affinity interaction with soluble thrombospondin-1 (TSP1) and low-affinity interaction with same-cell SIRPα, the so-called cis signal, and non-SIRPα ectodomains on the cell membrane suggests that multiple immune checkpoints converge at and through CD47. Appreciation of this may provide latitude for pathway-specific targeting and intelligent therapeutic effect.

Indexed as

CD47 AntigenNeoplasmsAntibodiesAntigens, DifferentiationCarrier ProteinsHumansPhagocytosisReceptors, ImmunologicAntibodiesAntigens, DifferentiationCarrier ProteinsCD47 AntigenCD47 protein, humanReceptors, ImmunologicCancerCD47CheckpointSIRPαThrombospondin-1Type 1 diabetes

Identifiers

PMID37217603
PMCPMC10412679
OpenAlexW4377291285

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.