Evidence map›Paper›PMID 21347809›Full record

ArticleCancer immunology, immunotherapy : CII2011

The Bs20x22 anti-CD20-CD22 bispecific antibody has more lymphomacidal activity than do the parent antibodies alone.

Joseph M Tuscano, Yunpeng Ma, Shiloh M Martin, Jason Kato, Robert T O'Donnell

Open access · hybridAbstract read
In one paragraph

Article in Cancer immunology, immunotherapy : CII, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.8field-weighted citation impact, top 16% 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

7 citing papers in PubMed, 16 citations in OpenAlex.

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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

5 authors at 2 institutions in 1 country.

Joseph M TuscanoDivision of Hematology and Oncology, Department of Internal Medicine, University of California, Davis, Cancer Center, Sacramento, CA 95817, USA. joseph.tuscano@ucdmc.ucdavis.edu
Yunpeng Ma
Shiloh M Martin
Jason Kato
Robert T O'Donnell
University of California, Davis · USUniversity of California Davis Medical Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Previous studies have shown that bispecific antibodies that target both CD20 and CD22 have in vivo lymphomacidal properties. We developed a CD20-CD22 bispecific antibody (Bs20x22) from anti-CD20 and the anti-CD22 monoclonal antibodies (mAb), rituximab and HB22.7, respectively. Bs20x22 was constructed using standard methods and was shown to specifically bind CD20 and CD22. In vitro cytotoxicity assays showed that Bs20x22 was three times more effective than either parent mAb alone and twice as effective as a combination of both parent mAb used at equimolar concentrations. Bs20x22 was also nearly four times more effective at inducing apoptosis than either mAb alone. Examination of the MAPK and SAPK signaling cascades revealed that Bs20x22 induced significantly more p38 phosphorylation than either mAb alone. In an in vivo human NHL xenograft model, treatment with Bs20x22 resulted in significantly greater tumor shrinkage and improved overall survival when compared to either mAb alone or treatment with a combination of HB22.7 and rituximab. The effect of the initial tumor volume was assessed by comparing the efficacy of Bs20x22 administered before xenografts grew versus treatment of established tumors; significantly, greater efficacy was found when treatment was initiated before tumors could become established.

Indexed as

AnimalsAntibodies, BispecificAntibodies, MonoclonalAntibodies, Monoclonal, Murine-DerivedAntigens, CD20Burkitt LymphomaCell Line, TumorFemaleHumansMiceMice, Inbred BALB CMice, NudeRituximabSialic Acid Binding Ig-like Lectin 2TransfectionXenograft Model Antitumor AssaysAntibodies, BispecificAntibodies, MonoclonalAntibodies, Monoclonal, Murine-DerivedAntigens, CD20RituximabSialic Acid Binding Ig-like Lectin 2

Identifiers

PMID21347809
PMCPMC3098984
OpenAlexW1978694012

What OpenQuestion holds

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LicenceCC BY-NC
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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.