Evidence map›Paper›PMID 15650771›Full record

ArticleThe Journal of clinical investigation2005

Chronic lymphocytic leukemia B cells contain anomalous Lyn tyrosine kinase, a putative contribution to defective apoptosis.

Antonella Contri, Anna Maria Brunati, Livio Trentin, Anna Cabrelle, Marta Miorin, Luca Cesaro, Lorenzo A Pinna, Renato Zambello, Gianpietro Semenzato, Arianna Donella-Deana

Open access · greenAbstract read
In one paragraph

Article in The Journal of clinical investigation, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 114 papers.

0numbers the graph read from it
0cells of the map it votes in
114citing papers in PubMed
5.5field-weighted citation impact, top 4% 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

114 citing papers in PubMed, 231 citations in OpenAlex.

  1. Phase II study of dasatinib in relapsed or refractory chronic lymphocytic leukemia.Clinical cancer research : an official journal of the American Association for Cancer Research · 2011
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  15. Oncology letters · 2021
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54 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 3 institutions in 2 countries.

Antonella ContriDepartment of Clinical and Experimental Medicine, Clinical Immunology Branch, Padua University School of Medicine, Padua, Italy.
Anna Maria Brunati
Livio Trentin
Anna Cabrelle
Marta Miorin
Luca Cesaro
Lorenzo A Pinna
Renato Zambello
Gianpietro Semenzato
Arianna Donella-Deana
University of Padua · ITInstitute for Molecular Medicine · USVeneto Institute of Molecular Medicine · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

B cell chronic lymphocytic leukemia (B-CLL) is a neoplastic disorder characterized by accumulation of B lymphocytes due to uncontrolled growth and resistance to apoptosis. Analysis of B cells freshly isolated from 40 patients with chronic lymphocytic leukemia demonstrated that the Src kinase Lyn, the switch molecule that couples the B cell receptor to downstream signaling, displays anomalous properties. Lyn is remarkably overexpressed at the protein level in leukemic cells as compared with normal B lymphocytes, with a substantial aliquot of the kinase anomalously present in the cytosol. Whereas in normal B lymphocytes Lyn activation is dependent on B cell-receptor stimulation, in resting malignant cells, the constitutive activity of the kinase accounts for high basal protein tyrosine phosphorylation and low responsiveness to IgM ligation. Addition of the Lyn inhibitors PP2 and SU6656 to leukemic cell cultures restores cell apoptosis, and treatment of malignant cells with drugs that induce cell apoptosis decreases both activity and amount of the tyrosine kinase. These findings suggest a direct correlation between high basal Lyn activity and defects in the induction of apoptosis in leukemic cells. They also support a critical role for Lyn in B-CLL pathogenesis and identify this tyrosine kinase as a potential therapeutic target.

Indexed as

ApoptosisGene Expression Regulation, LeukemicB-LymphocytesHumansImmunoglobulin MIndolesLeukemia, Lymphocytic, Chronic, B-CellLymphocyte ActivationPhosphorylationPyrimidinesReceptors, Antigen, B-CellSignal Transductionsrc-Family KinasesSulfonamidesTumor Cells, CulturedAG 1879Immunoglobulin MIndoleslyn protein-tyrosine kinasePyrimidinesReceptors, Antigen, B-Cellsrc-Family KinasesSU 6656Sulfonamides

Identifiers

PMID15650771
PMCPMC544036
OpenAlexW2003423830

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.