Evidence map›Paper›PMID 35764309›Full record

ArticleBritish journal of haematology2022

The molecular rationale for the combination of polatuzumab vedotin plus rituximab in diffuse large B-cell lymphoma.

Natsumi Kawasaki, Yukari Nishito, Yasushi Yoshimura, Shigeki Yoshiura

Open access · hybridAbstract read
In one paragraph

Article in British journal of haematology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.9field-weighted citation impact, top 8% 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

22 citing papers in PubMed, 24 citations in OpenAlex.

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  14. Development and biomarkers of CD20/CD3 bispecific antibodies in diffuse large B-cell lymphoma.Journal of clinical and experimental hematopathology : JCEH · 2025
    Review
  15. Article
  16. Review
  17. Article
  18. Antibody-drug conjugates combinations in cancer treatment.Exploration of targeted anti-tumor therapy · 2024
    Review
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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

4 authors at 1 institution in 1 country.

Natsumi KawasakiProduct Research Department, Chugai Pharmaceutical Co., Ltd., Kamakura, Kanagawa, Japan.ORCID 0000-0003-0422-3853
Yukari NishitoDiscovery Technology Department, Chugai Pharmaceutical Co., Ltd., Kamakura, Kanagawa, Japan.
Yasushi YoshimuraProduct Research Department, Chugai Pharmaceutical Co., Ltd., Kamakura, Kanagawa, Japan.
Shigeki YoshiuraProduct Research Department, Chugai Pharmaceutical Co., Ltd., Kamakura, Kanagawa, Japan.
Chugai Pharma (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Polatuzumab vedotin (Pola) is an antibody-drug conjugate that targets the B-cell antigen CD79b and delivers monomethyl auristatin E (MMAE). It is approved in combination with bendamustine and rituximab (Rit) for relapsed/refractory diffuse large B-cell lymphoma (r/r DLBCL). Understanding the molecular basis of Pola combination therapy with Rit, the key component for the treatment of DLBCL, is important to establish the effective treatment strategies against r/r DLBCL. Here, we examined the rationale for the combination of Pola with Rit using Pola-refractory cells. We found that treatment with Pola increased CD20 expression and sensitivity to Rit-induced complement-dependent cytotoxicity (CDC) in several Pola-refractory cells. Pola treatment increased phosphorylation of AKT and ERK and both AKT- and MEK-specific inhibitors attenuated the Pola-induced increase of CD20 and CDC sensitivity, suggesting that these phosphorylation events were required for this combination efficacy. It was revealed that anti-CD79b antibody increased the phosphorylation of AKT but inhibited the phosphorylation of ERK. In contrast, MMAE potentiated phosphorylation of ERK but slightly attenuated the phosphorylation of AKT. Pola also increased CD20 expression on Pola-refractory xenografted tumours and significantly enhanced antitumour activity in combination with Rit. In conclusion, these results could provide a novel rationale for the combination of Pola plus Rit.

Indexed as

ImmunoconjugatesLymphoma, Large B-Cell, DiffuseLymphoma, Non-HodgkinAntibodies, MonoclonalAntineoplastic Combined Chemotherapy ProtocolsBendamustine HydrochlorideHumansMitogen-Activated Protein Kinase KinasesProto-Oncogene Proteins c-aktRituximabAntibodies, MonoclonalBendamustine HydrochlorideImmunoconjugatesMitogen-Activated Protein Kinase Kinasespolatuzumab vedotinProto-Oncogene Proteins c-aktRituximabCD20DLBCLnon-Hodgkin lymphomapolatuzumab vedotinrituximab

Identifiers

PMID35764309
PMCPMC9796291
OpenAlexW4283701103

What OpenQuestion holds

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Registered trials

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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.