Evidence map›Paper›PMID 20423999›Full record

ArticleMolecular cancer therapeutics2010

Inhibition of Mer and Axl receptor tyrosine kinases in astrocytoma cells leads to increased apoptosis and improved chemosensitivity.

Amy K Keating, Grace K Kim, Ashley E Jones, Andrew M Donson, Kathryn Ware, Jean M Mulcahy, Dana B Salzberg, Nicholas K Foreman, Xiayuan Liang, Andrew Thorburn and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in Molecular cancer therapeutics, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 96 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
96citing papers in PubMed, 2 pooled it
4.2field-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

96 citing papers in PubMed, 2 syntheses or guidelines pooled it, 140 citations in OpenAlex.

  1. Pooled it
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  6. Article
  7. A systems approach identifies MERTK as a therapeutic vulnerability in ZFTA-RELA-driven ependymomas.Proceedings of the National Academy of Sciences of the United States of America · 2026
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36 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

11 authors at 3 institutions in 1 country.

Amy K KeatingDepartment of Pediatrics, University of Colorado Denver, Aurora, CO 80045, USA. Amy.Keating@UCDenver.edu
Grace K Kim
Ashley E Jones
Andrew M Donson
Kathryn Ware
Jean M Mulcahy
Dana B Salzberg
Nicholas K Foreman
Xiayuan Liang
Andrew Thorburn
Douglas K Graham
University of Colorado Denver · USPhoenix Children's Hospital · USChildren's Hospital Colorado · US

Funding

POSTGRADUATE TRAINING IN PEDIATRIC ONCOLOGYT32CA082086 · NCI · UNIVERSITY OF COLORADO DENVER · PI GORE, LIA · 2000 to 2015
$4.1M
NCI NIH HHS T32 CA082086
6 · The paper itself

Abstract

Astrocytomas account for the majority of malignant brain tumors diagnosed in both adult and pediatric patients. The therapies available to treat these neoplasms are limited, and the prognosis associated with high-grade lesions is extremely poor. Mer (MerTK) and Axl receptor tyrosine kinases (RTK) are expressed at abnormally high levels in a variety of malignancies, and these receptors are known to activate strong antiapoptotic signaling pathways that promote oncogenesis. In this study, we found that Mer and Axl mRNA transcript and protein expression were elevated in astrocytic patient samples and cell lines. shRNA-mediated knockdown of Mer and Axl RTK expression led to an increase in apoptosis in astrocytoma cells. Apoptotic signaling pathways including Akt and extracellular signal-regulated kinase 1/2, which have been shown to be activated in resistant astrocytomas, were downregulated with Mer and Axl inhibition whereas poly(ADP-ribose) polymerase cleavage was increased. Furthermore, Mer and Axl shRNA knockdown led to a profound decrease of astrocytoma cell proliferation in soft agar and a significant increase in chemosensitivity in response to temozolomide, carboplatin, and vincristine treatment. Our results suggest Mer and Axl RTK inhibition as a novel method to improve apoptotic response and chemosensitivity in astrocytoma and provide support for these oncogenes as attractive biological targets for astrocytoma drug development.

Indexed as

AdultApoptosisAstrocytomaAxl Receptor Tyrosine KinaseBrain NeoplasmsCell ProliferationChildc-Mer Tyrosine KinaseDrug Evaluation, PreclinicalDrug Resistance, NeoplasmGene Knockdown TechniquesHumansProtein Kinase InhibitorsProto-Oncogene ProteinsReceptor Protein-Tyrosine KinasesRNA, Small InterferingAXL protein, humanAxl Receptor Tyrosine Kinasec-Mer Tyrosine KinaseMERTK protein, humanProtein Kinase InhibitorsProto-Oncogene ProteinsReceptor Protein-Tyrosine KinasesRNA, Small Interfering

Identifiers

PMID20423999
PMCPMC3138539
OpenAlexW2113765051

What OpenQuestion holds

Textmetadata
LicenceTDM
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.