Evidence map›Paper›PMID 24270740›Full record

ArticleLeukemia2014

BTK inhibition targets in vivo CLL proliferation through its effects on B-cell receptor signaling activity.

S Cheng, J Ma, A Guo, P Lu, J P Leonard, M Coleman, M Liu, J J Buggy, R R Furman, Y L Wang

Abstract readClinical Trial, Phase I
PubMed Publisher
In one paragraph

Article in Leukemia, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 108 papers.

0numbers the graph read from it
0cells of the map it votes in
108citing papers in PubMed
10.2field-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

108 citing papers in PubMed, 184 citations in OpenAlex.

  1. Pharmacodynamic Analysis of BTK Inhibition in Patients with Chronic Lymphocytic Leukemia Treated with Acalabrutinib.Clinical cancer research : an official journal of the American Association for Cancer Research · 2020
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48 more citing papers are in PubMed but not listed here.

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

10 authors at 2 institutions in 1 country.

S ChengDepartment of Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, NY, USA.
J MaDepartment of Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, NY, USA.
A GuoDepartment of Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, NY, USA.
P LuDepartment of Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, NY, USA.
J P LeonardDepartment of Medicine, Weill Cornell Medical College, New York, NY, USA.
M ColemanDepartment of Medicine, Weill Cornell Medical College, New York, NY, USA.
M LiuDepartment of Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, NY, USA.
J J BuggyPharmacyclics Inc., Sunnyvale, CA, USA.
R R FurmanDepartment of Medicine, Weill Cornell Medical College, New York, NY, USA.
Y L WangDepartment of Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, NY, USA.
Cornell University · USPharmacyclics (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Bruton agammaglobulinemia tyrosine kinase (BTK), a cytoplasmic protein tyrosine kinase, is a component of the B-cell receptor signaling pathway. Ibrutinib, a BTK inhibitor, has demonstrated a significant clinical activity against chronic lymphocytic leukemia (CLL) in early clinical trials. Understanding the molecular mechanisms of action would shed light on CLL pathophysiology and provide additional opportunities for the development of new therapies. In this study, we have chosen an in vivo approach by employing an ongoing phase 1b trial of ibrutinib. We prospectively collected and analyzed serial samples from the CLL patients before and after the initiation of ibrutinib. We found that the blockage of cell proliferation was one of the primary effects of ibrutinib against leukemic CLL cells in vivo. Using a co-culture system that induces CLL proliferation in vitro, analysis of several parameters, including Ki-67 expression and bromodeoxyuridine (BrdU) incorporation, revealed that the proliferation of CLL cells was directly inhibited by ibrutinib. Furthermore, activities of BTK and phospholipase Cγ2 as well as downstream signaling molecules, AKT and ERK, were all coordinately downregulated over time in ibrutinib-treated patients. Our findings suggest that the cell proliferation is one of the essential properties of CLL. Blocking cell proliferation via inhibition of BTK-mediated signaling may contribute to clinical responses in ibrutinib-treated patients.

Indexed as

Signal TransductionAdenineAgammaglobulinaemia Tyrosine KinaseCell Line, TumorCell ProliferationCoculture TechniquesHumansLeukemia, Lymphocytic, Chronic, B-CellPiperidinesProspective StudiesProtein Kinase InhibitorsProtein-Tyrosine KinasesPyrazolesPyrimidinesReceptors, Antigen, B-CellAdenineAgammaglobulinaemia Tyrosine KinaseBTK protein, humanibrutinibPiperidinesProtein Kinase InhibitorsProtein-Tyrosine KinasesPyrazolesPyrimidinesReceptors, Antigen, B-Cell

Identifiers

PMID24270740
OpenAlexW1979834961

What OpenQuestion holds

Textmetadata
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.