Evidence map›Paper›PMID 16001087›Full record

ArticleLeukemia2005

Quantitative single cell determination of ERK phosphorylation and regulation in relapsed and refractory primary acute myeloid leukemia.

M R Ricciardi, T McQueen, D Chism, M Milella, E Estey, E Kaldjian, J Sebolt-Leopold, M Konopleva, M Andreeff

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Leukemia, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 76 papers.

0numbers the graph read from it
0cells of the map it votes in
76citing 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

76 citing papers in PubMed, 123 citations in OpenAlex.

  1. Trial
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  4. Phase II study of the oral MEK inhibitor selumetinib in advanced acute myelogenous leukemia: a University of Chicago phase II consortium trial.Clinical cancer research : an official journal of the American Association for Cancer Research · 2014
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  10. Erk1Oncogene · 2025
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16 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

9 authors at 2 institutions in 1 country.

M R RicciardiDepartment of Blood Transplantation, Section of Molecular Hematology and Therapy, The University of Texas, MD Anderson Cancer Center, Houston, TX 77030, USA.
T McQueen
D Chism
M Milella
E Estey
E Kaldjian
J Sebolt-Leopold
M Konopleva
M Andreeff
The University of Texas MD Anderson Cancer Center · USPfizer (United States) · US

Funding

Tumor Evolution and Metastasis ProgramP30CA016672 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI Fabien Delerue · 1985 to 2026
$290.8M
THE THERAPY OF AMLP01CA055164 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI BERRY, DONALD A · 1992 to 2011
$25.3M
NCI NIH HHS CA16672NCI NIH HHS P01 CA55164
6 · The paper itself

Abstract

We investigated the constitutive activation of the MEK/ERK pathway in acute myelogenous leukemia (AML) via a flow cytometric technique to quantitate expression of phosphorylated ERK (p-ERK). A total of 42 AML samples (16 newly diagnosed, 26 relapsed/refractory) were analyzed. Normal bone marrow CD34+ cells (n = 10) had little or no expression of p-ERK, while G-CSF-mobilized CD34+ cells exhibited enhanced p-ERK levels. Markedly elevated p-ERK levels were found in 83.3% of the AML samples, with no differences observed between the newly diagnosed and relapsed/refractory samples. Treatment with a MEK inhibitor resulted in significantly decreased p-ERK levels in both the newly diagnosed and relapsed/refractory samples, which was associated with growth arrest, but not apoptosis induction. In summary, we defined conditions for the analysis of MAPK signaling in primary AML samples. Normal CD34+ cells expressed very low levels of p-ERK, and increased p-ERK levels were found in normal G-CSF-stimulated circulating CD34+ cells. Constitutively high p-ERK levels observed in the majority of AML samples suggest deregulation of this pathway that appears to be independent of disease status. The ability of ERK inhibition to promote growth arrest rather than apoptosis suggests that clinical trials of MEK/ERK inhibitors may be more effective when combined with chemotherapy.

Indexed as

Acute DiseaseAntigens, CD34ApoptosisBenzamidesCell Line, TumorExtracellular Signal-Regulated MAP KinasesFlow CytometryHumansLeukemia, MyeloidPhosphorylationRecurrence2-(2-chloro-4-iodophenylamino)-N-cyclopropylmethoxy-3,4-difluorobenzamideAntigens, CD34BenzamidesExtracellular Signal-Regulated MAP Kinases

Identifiers

PMID16001087
OpenAlexW1965694831

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.