Evidence map›Paper›PMID 23722425›Full record

ArticleScience (New York, N.Y.)2013

Engineered SIRPα variants as immunotherapeutic adjuvants to anticancer antibodies.

Kipp Weiskopf, Aaron M Ring, Chia Chi M Ho, Jens-Peter Volkmer, Aron M Levin, Anne Kathrin Volkmer, Engin Ozkan, Nathaniel B Fernhoff, Matt van de Rijn, Irving L Weissman and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in Science (New York, N.Y.), 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 315 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
315citing papers in PubMed, 1 pooled it
13.1field-weighted citation impact, top 1% 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

315 citing papers in PubMed, 1 synthesis or guideline pooled it, 487 citations in OpenAlex.

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255 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors at 3 institutions in 1 country.

Kipp WeiskopfInstitute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA.
Aaron M Ring
Chia Chi M Ho
Jens-Peter Volkmer
Aron M Levin
Anne Kathrin Volkmer
Engin Ozkan
Nathaniel B Fernhoff
Matt van de Rijn
Irving L Weissman
K Christopher Garcia
Stanford University · USHoward Hughes Medical Institute · USStanford Medicine · US

Funding

MEDICAL SCIENTIST TRAINING PROGRAMT32GM007365 · NIGMS · STANFORD UNIVERSITY · PI CHUA, KATRIN F · 1985 to 2021
$33.8M
therapeutic Targeting of CD47 on Human Leukemia and Other Cancer Stem CellsP01CA139490 · NCI · STANFORD UNIVERSITY · PI WEISSMAN, IRVING L. · 2009 to 2013
$8.7M
MOLECULAR CHARACTERIZATION OF ACUTE MYELOID LEUKEMIAR01CA086017 · NCI · STANFORD UNIVERSITY · PI WEISSMAN, IRVING L. · 2000 to 2015
$5.5M
Strategies for Receptor inhibition in immunotherapyR01CA177684 · NCI · STANFORD UNIVERSITY · PI DOUGAN, MICHAEL LAWRENCE, GARCIA, KENAN CHRISTOPHER · 2014 to 2025
$3.5M
Molecular Characterization of Leiomyosarcoma and GISTR01CA112270 · NCI · STANFORD UNIVERSITY · PI VAN DE RIJN, JAN MATT · 2005 to 2014
$3.0M
EVOLVING HIGH AFFINITY SIRPa MUTANTS TO STIMULATE PHAGOCYTOSIS OF TUMOR CELLSF30CA168059 · NCI · STANFORD UNIVERSITY · PI WEISKOPF, KIPP A · 2012 to 2014
$142k
MOLECULAR ENGINEERING OF IL-2 FOR THE TREATMENT AND PREVENTION OF TYPE I DIABETESF30DK094541 · NIDDK · STANFORD UNIVERSITY · PI RING, AARON MICHAEL · 2011 to 2013
$121k
Howard Hughes Medical InstituteNCI NIH HHS CA139490NCI NIH HHS F30 CA168059NCI NIH HHS F30CA168059NCI NIH HHS P01 CA139490NCI NIH HHS R01 CA086017NCI NIH HHS R01 CA112270NCI NIH HHS R01 CA177684NIDDK NIH HHS F30 DK094541NIDDK NIH HHS F30DK094541NIGMS NIH HHS GM07365NIGMS NIH HHS T32 GM007365
6 · The paper itself

Abstract

CD47 is an antiphagocytic signal that cancer cells employ to inhibit macrophage-mediated destruction. Here, we modified the binding domain of human SIRPα, the receptor for CD47, for use as a CD47 antagonist. We engineered high-affinity SIRPα variants with about a 50,000-fold increased affinity for human CD47 relative to wild-type SIRPα. As high-affinity SIRPα monomers, they potently antagonized CD47 on cancer cells but did not induce macrophage phagocytosis on their own. Instead, they exhibited remarkable synergy with all tumor-specific monoclonal antibodies tested by increasing phagocytosis in vitro and enhancing antitumor responses in vivo. This "one-two punch" directs immune responses against tumor cells while lowering the threshold for macrophage activation, thereby providing a universal method for augmenting the efficacy of therapeutic anticancer antibodies.

Indexed as

Adjuvants, ImmunologicAnimalsAntibodies, MonoclonalAntibodies, Monoclonal, Murine-DerivedAntibodies, NeoplasmAntigens, DifferentiationCD47 AntigenCell Line, TumorDirected Molecular EvolutionHumansImmunotherapyMacrophage ActivationMiceNeoplasmsPhagocytosisReceptors, ImmunologicAdjuvants, ImmunologicAntibodies, MonoclonalAntibodies, Monoclonal, Murine-DerivedAntibodies, NeoplasmAntigens, DifferentiationCD47 AntigenReceptors, ImmunologicRituximabSIRPA protein, human

Identifiers

PMID23722425
PMCPMC3810306
OpenAlexW2068052762

What OpenQuestion holds

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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.