Evidence map›Paper›PMID 26717038›Full record

ArticleOncotarget2016

Heightened BTK-dependent cell proliferation in unmutated chronic lymphocytic leukemia confers increased sensitivity to ibrutinib.

Ailin Guo, Pin Lu, Natalie Galanina, Chadi Nabhan, Sonali M Smith, Morton Coleman, Y Lynn Wang

Open access · diamondAbstract read
In one paragraph

Article in Oncotarget, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
4.3field-weighted citation impact, top 5% 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

36 citing papers in PubMed, 55 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

7 authors at 2 institutions in 1 country.

Ailin GuoDivision of Genomic and Molecular Pathology, Department of Pathology, University of Chicago, Chicago, IL, USA.
Pin LuDivision of Genomic and Molecular Pathology, Department of Pathology, University of Chicago, Chicago, IL, USA.
Natalie GalaninaDepartment of Medicine, Section of Hematology and Oncology, University of Chicago, Chicago, IL, USA.
Chadi NabhanDepartment of Medicine, Section of Hematology and Oncology, University of Chicago, Chicago, IL, USA.
Sonali M SmithDepartment of Medicine, Section of Hematology and Oncology, University of Chicago, Chicago, IL, USA.
Morton ColemanDepartment of Medicine, Weill Cornell Medical College, New York, NY, USA.
Y Lynn WangDivision of Genomic and Molecular Pathology, Department of Pathology, University of Chicago, Chicago, IL, USA.
University of Chicago · USCornell University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In chronic lymphocytic leukemia (CLL), patients with unmutated immunoglobulin heavy chain variable region gene (UM-CLL) have worse outcomes than mutated CLL (M-CLL) following chemotherapy or chemoimmunotherapy. However, in the era of BCR-targeted therapies, the adverse prognostic impact of unmutated IGHV seems to be diminishing, and there are clinical datasets showing unexpected improved responses in UM-CLL. We investigated the biological differences of BTK activity between these subgroups and further compared the impact of ibrutinib on molecular and cellular behaviors. Immunoblotting analysis revealed that phosphorylated active BTK is significantly higher in UM-CLL. Moreover, UM-CLL, compared to M-CLL, displayed a much higher proliferative capacity that was correlated with higher phospho-BTK and greater sensitivity to ibrutinib. In addition, BTK depletion with siRNA led to a more prominent reduction in the proliferation of UM-CLL, suggesting that elevated BTK activity is responsible for increased cell proliferation. Further, cell signaling activity by multiple measurements was consistently higher in UM-CLL accompanied by a higher sensitivity to ibrutinib. These studies link UM-CLL to elevated BCR signaling, heightened BTK-dependent cell proliferation and increased sensitivity to ibrutinib. The prognostic significance of IGHV mutation should be reevaluated in the era of new therapies targeting BCR signaling.

Indexed as

AdenineAgammaglobulinaemia Tyrosine KinaseApoptosisBiomarkers, TumorBlotting, WesternCase-Control StudiesCell ProliferationDrug Resistance, NeoplasmFlow CytometryHumansImmunoenzyme TechniquesImmunoglobulin Heavy ChainsImmunoglobulin Variable RegionLeukemia, Lymphocytic, Chronic, B-CellMutationPhosphorylationAdenineAgammaglobulinaemia Tyrosine KinaseBiomarkers, TumorBTK protein, humanibrutinibImmunoglobulin Heavy ChainsImmunoglobulin Variable RegionPiperidinesProtein-Tyrosine KinasesPyrazolesPyrimidinesBCR pathwayBTKCLL proliferationibrutinibIGHV mutational status

Identifiers

PMID26717038
PMCPMC4826229
OpenAlexW2211564719

What OpenQuestion holds

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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.