Evidence map›Paper›PMID 21527514›Full record

ArticleBlood2011

p90RSK2 is essential for FLT3-ITD- but dispensable for BCR-ABL-induced myeloid leukemia.

Shannon Elf, Dean Blevins, Lingtao Jin, Tae-Wook Chung, Ifor R Williams, Benjamin H Lee, Jian-Xin Lin, Warren J Leonard, Jack Taunton, Hanna J Khoury and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in Blood, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
1.2field-weighted citation impact, top 21% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 36 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

11 authors at 5 institutions in 1 country.

Shannon ElfDepartment of Hematology and Medical Oncology, Emory University School of Medicine, Winship Cancer Institute of Emory, Atlanta, GA, USA.
Dean Blevins
Lingtao Jin
Tae-Wook Chung
Ifor R Williams
Benjamin H Lee
Jian-Xin Lin
Warren J Leonard
Jack Taunton
Hanna J Khoury
Sumin Kang
Howard Hughes Medical Institute · USNational Heart Lung and Blood Institute · USNational Institutes of Health · USNovartis (United States) · USWinship Cancer Institute

Funding

IL-2 Family Cytokines and their Receptors-- Biology of the IL-2 systemZIAHL005401 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI LEONARD, WARREN J · 2009 to 2025
$22.5M
TARGETING DEATH RECEPTOR-MEDIATED APOPTOSIS FOR HEAD AND NECK CANCERP50CA128613 · NCI · EMORY UNIVERSITY · PI SHIN, DONG M · 2007 to 2011
$12.0M
Graduate Training in the Pharmacological StudiesT32GM008602 · NIGMS · EMORY UNIVERSITY · PI HALL, RANDY A. · 1996 to 2021
$5.1M
Highly Selective, Irreversible Protein Kinase InhibitorsR01GM071434 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI TAUNTON, JACK · 2005 to 2008
$1.1M
NCI NIH HHS P50 CA128613NCI NIH HHS P50CA128613NIGMS NIH HHS GM071434NIGMS NIH HHS R01 GM071434NIGMS NIH HHS T32 GM008602
6 · The paper itself

Abstract

p90 ribosomal S6 kinase 2 (p90RSK2) is important in diverse cellular processes including gene expression, cell proliferation, and survival. We found that p90RSK2 is commonly activated in diverse leukemia cell lines expressing different leukemogenic tyrosine kinases, including BCR-ABL and FMS-like tyrosine kinase 3-internal tandem duplication (FLT3-ITD). Interestingly, in a murine BM transplantation (BMT) model, genetic deficiency of RSK2 did not affect the pathogenesis or disease progression of BCR-ABL-induced myeloproliferative neoplasm (PN). In contrast, FLT3-ITD induced a T-cell acute lymphoblastic leukemia in BMT mice receiving RSK2 knockout (KO) BM cells, phenotypically distinct from the myeloproliferative neoplasm induced by FLT3-ITD using wild-type BM cells. In consonance with these results, inhibition of RSK2 by an RSK inhibitor, fmk, did not effectively induce apoptosis in BCR-ABL-expressing murine Ba/F3 cells, human K562 cells or primary tissue samples from CML patients, whereas fmk treatment induced significant apoptotic cell death not only in FLT3-ITD-positive Ba/F3 cells, human Molm14 and Mv(4;11) leukemia cells, but also in primary tissue samples from AML patients. These results suggest that RSK2 is dispensable for BCR-ABL-induced myeloid leukemia, but may be required for pathogenesis and lineage determination in FLT3-ITD-induced hematopoietic transformation. RSK2 may thus represent an alternative therapeutic target in the treatment of FLT3-ITD-positive leukemia.

Indexed as

AnimalsCell Line, TumorCells, CulturedCell SurvivalEnzyme ActivationEnzyme Inhibitorsfms-Like Tyrosine Kinase 3Fusion Proteins, bcr-ablGene Knockout TechniquesHumansLeukemia, Myelogenous, Chronic, BCR-ABL PositiveLeukemia, MyeloidMiceMice, Inbred BALB CRibosomal Protein S6 Kinases, 90-kDaEnzyme Inhibitorsfms-Like Tyrosine Kinase 3Fusion Proteins, bcr-ablRibosomal Protein S6 Kinases, 90-kDa

Identifiers

PMID21527514
PMCPMC3128480
OpenAlexW2082021162

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.