Evidence map›Paper›PMID 32139435›Full record

ArticleHaematologica2021

Combining ibrutinib and checkpoint blockade improves CD8+ T-cell function and control of chronic lymphocytic leukemia in Em-TCL1 mice.

Bola S Hanna, Haniyeh Yazdanparast, Yasmin Demerdash, Philipp M Roessner, Ralph Schulz, Peter Lichter, Stephan Stilgenbauer, Martina Seiffert

Open access · goldAbstract read
In one paragraph

Article in Haematologica, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
3.5field-weighted citation impact, top 7% 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

32 citing papers in PubMed, 40 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

8 authors at 3 institutions in 1 country.

Bola S HannaMolecular Genetics, German Cancer Research Center (DKFZ), Heidelberg, Germany.
Haniyeh YazdanparastMolecular Genetics, German Cancer Research Center (DKFZ), Heidelberg, Germany.
Yasmin DemerdashMolecular Genetics, German Cancer Research Center (DKFZ), Heidelberg, Germany.
Philipp M RoessnerMolecular Genetics, German Cancer Research Center (DKFZ), Heidelberg, Germany.
Ralph SchulzMolecular Genetics, German Cancer Research Center (DKFZ), Heidelberg, Germany.
Peter LichterMolecular Genetics, German Cancer Research Center (DKFZ), Heidelberg, Germany.
Stephan StilgenbauerInternal Medicine III, University of Ulm, Ulm, Germany.
Martina SeiffertMolecular Genetics, German Cancer Research Center (DKFZ), Heidelberg, Germany.
German Cancer Research Center · DEHeidelberg University · DEUniversität Ulm · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ibrutinib is a bruton's tyrosine kinase (BTK) inhibitor approved for the treatment of multiple B-cell malignancies, including chronic lymphocytic leukemia (CLL). In addition to blocking B-cell receptor signaling and chemokine receptor-mediated pathways in CLL cells, that are known drivers of disease, ibrutinib also affects the microenvironment in CLL via targeting BTK in myeloid cells and IL-2-inducible T-cell kinase (ITK) in T-cells. These non-BTK effects were suggested to contribute to the success of ibrutinib in CLL. By using the Eµ-TCL1 adoptive transfer mouse model of CLL, we observed that ibrutinib effectively controls leukemia development, but also results in significantly lower numbers of CD8+ effector T-cells, with lower expression of activation markers, as well as impaired proliferation and effector function. Using CD8+ T-cells from a T-cell receptor (TCR) reporter mouse, we verified that this is due to a direct effect of ibrutinib on TCR activity, and demonstrate that co-stimulation via CD28 overcomes these effects. Most interestingly, combination of ibrutinib with blocking antibodies targeting PD-1/PD-L1 axis in vivo improved CD8+ T-cell effector function and control of CLL. In sum, these data emphasize the strong immunomodulatory effects of ibrutinib and the therapeutic potential of its combination with immune checkpoint blockade in CLL.

Indexed as

Leukemia, Lymphocytic, Chronic, B-CellAdenineAnimalsCD8-Positive T-LymphocytesMicePiperidinesProtein Kinase InhibitorsProto-Oncogene ProteinsPyrazolesPyrimidinesTumor MicroenvironmentAdenineibrutinibPiperidinesProtein Kinase InhibitorsProto-Oncogene ProteinsPyrazolesPyrimidinesTcl1 protein, mouse

Identifiers

PMID32139435
PMCPMC8017821
OpenAlexW3010073081

What OpenQuestion holds

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LicenceCC BY-NC
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.