Evidence map›Paper›PMID 19686845›Full record

ArticleCellular signalling2009

Down-regulation of Cdx2 in colorectal carcinoma cells by the Raf-MEK-ERK 1/2 pathway.

Felix Krueger, Zofia Madeja, Myriam Hemberger, Martin McMahon, Simon J Cook, Stephen J Gaunt

Open access · greenAbstract read
In one paragraph

Article in Cellular signalling, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.5field-weighted citation impact, top 16% 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

13 citing papers in PubMed, 26 citations in OpenAlex.

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  8. Aberrant expression of annexin A10 is closely related to gastric phenotype in serrated pathway to colorectal carcinoma.Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc · 2015
    Article
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  12. DARPP-32 is required for MAPK/ERK signaling in thyroid cells.Molecular endocrinology (Baltimore, Md.) · 2012
    Article
  13. Article
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

6 authors at 2 institutions in 2 countries.

Felix KruegerLaboratory of Developmental Genetics & Imprinting, The Babraham Institute, Babraham Research Campus, Cambridge, CB22 3AT, UK.
Zofia Madeja
Myriam Hemberger
Martin McMahon
Simon J Cook
Stephen J Gaunt
Babraham Institute · GBCancer Research Institute · US

Funding

Studying the initiation, progression and therapy of lung cancer in mouse modelsR01CA131261 · NCI · UTAH STATE HIGHER EDUCATION SYSTEM--UNIVERSITY OF UTAH · PI MARTIN MCMAHON · 2009 to 2026
$5.3M
Biotechnology and Biological Sciences Research Council BBS/E/B/0000C162Biotechnology and Biological Sciences Research Council BBS/E/B/0000C224Biotechnology and Biological Sciences Research Council BBS/E/B/0000C225Biotechnology and Biological Sciences Research Council BBS/E/B/0000C230Medical Research Council G0800784Medical Research Council G120/824NCI NIH HHS R01 CA131261
6 · The paper itself

Abstract

Cdx2 is a homeodomain transcription factor that regulates normal intestinal cell differentiation. Cdx2 is frequently lost during progression of colorectal cancer (CRC) and is widely viewed as a colorectal tumour suppressor. A previous study suggested that activation of protein kinase C (PKC) may be responsible for Cdx2 down-regulation in CRC cells. Here we show that activation of PKC does indeed promote down-regulation of Cdx2 at both the mRNA and protein levels. However, PKC-dependent loss of Cdx2 is dependent upon activation of the Raf-MEK-ERK1/2 pathway. Indeed, specific activation of the ERK1/2 pathway using the conditional kinase DeltaRaf-1:ER is sufficient to inhibit Cdx2 transcription. The Raf-MEK-ERK1/2 pathway is hyper-activated in a large fraction of colorectal cancers due to mutations in K-Ras and we show that treatment of CRC cell lines with MEK inhibitors causes an increase in Cdx2 expression. Furthermore, activation of the ERK1/2 pathway promotes the phosphorylation and proteasome-dependent degradation of the Cdx2 protein. The inhibitory effect of ERK1/2 upon Cdx2 in CRC cells is in sharp contrast to its stimulatory effect upon Cdx2 expression in trophectoderm and trophoblast stem cells. These results provide important new insights into the regulation of the Cdx2 tumour suppressor by linking it to ERK1/2, a pathway which is frequently activated in CRC.

Indexed as

CarcinomaCDX2 Transcription FactorCell Line, TumorCells, CulturedColorectal NeoplasmsDown-RegulationHomeodomain ProteinsHumansMAP Kinase Signaling SystemMitogen-Activated Protein Kinase 1Mitogen-Activated Protein Kinase 3Promoter Regions, GeneticProtein Kinase CProto-Oncogene Proteins c-rafStem CellsTrophoblastsCDX2 protein, humanCDX2 Transcription FactorHomeodomain ProteinsMitogen-Activated Protein Kinase 1Mitogen-Activated Protein Kinase 3Protein Kinase CProto-Oncogene Proteins c-raf

Identifiers

PMID19686845
PMCPMC4625762
OpenAlexW1971472251

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.