Evidence map›Paper›PMID 22409860›Full record

ArticleBMC cancer2012

Amphiregulin and Epiregulin mRNA expression in primary colorectal cancer and corresponding liver metastases.

Hidekazu Kuramochi, Go Nakajima, Yuka Kaneko, Ayako Nakamura, Yuji Inoue, Masakazu Yamamoto, Kazuhiko Hayashi

Open access · goldAbstract read
In one paragraph

Article in BMC cancer, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 1 pooled it
4.1field-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

34 citing papers in PubMed, 1 synthesis or guideline pooled it, 62 citations in OpenAlex.

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  18. The Role of ErbB Receptors in Infection.Trends in microbiology · 2017
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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

7 authors at 1 institution in 1 country.

Hidekazu KuramochiDepartment of Chemotherapy and Palliative Care, Tokyo Women's Medical University, 8-1 Kawadacho, Shinjukuku, Tokyo, Japan. Kuramochi@chemo.twmu.ac.jp
Go Nakajima
Yuka Kaneko
Ayako Nakamura
Yuji Inoue
Masakazu Yamamoto
Kazuhiko Hayashi
Tokyo Women's Medical University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAmphiregulin (AREG) and Epiregulin (EREG), ligands of EGFR, are reported to be predictive biomarkers of colorectal cancer patients treated with Cetuximab, an anti-EGFR antibody. The purpose of this study is to determine the correlation of AREG and EREG expression between primary colorectal cancer and corresponding liver metastases.

methodsOne hundred twenty colorectal cancer patients with liver metastases (100 with synchronous metastases, 20 with metachronous) were evaluated. No patients had ever received anti-EGFR antibody agents. AREG and EREG mRNA expression from both the primary tumor and liver metastases were measured using real-time RT-PCR. KRAS codon 12, 13 mutation status was analyzed by direct sequencing.

resultsModest, but significant, correlations were observed between primary tumor and corresponding liver metastases in both AREG mRNA expression (Rs = 0.54, p < 0.0001) and EREG mRNA expression (Rs = 0.58, p < 0.0001). AREG and EREG mRNA expression was strongly correlated in both the primary tumor (Rs = 0.81, p < 0.0001) and the liver metastases (Rs = 0.87, p < 0.0001). No significant survival difference was observed between low and high AREG or EREG patients when all 120 patients were analyzed. However, when divided by KRAS status, KRAS wild-type patients with low EREG mRNA levels in the primary site showed significantly better overall survival rates than those with high levels (p = 0.018). In multivariate analysis, low EREG expression was significantly associated with better overall survival (p = 0.006).

conclusionsAREG and EREG expression showed a modest correlation between primary tumor and liver metastases. As EREG mRNA expression was associated with decreased survival, it is appeared to be a useful prognostic marker in KRAS wild-type patients who never received anti-EGFR therapy.

Indexed as

AdultAgedAged, 80 and overAmphiregulinBiomarkers, TumorColorectal NeoplasmsDNA Mutational AnalysisEGF Family of ProteinsEpidermal Growth FactorEpiregulinFemaleGlycoproteinsHumansIntercellular Signaling Peptides and ProteinsLiver NeoplasmsMaleAmphiregulinAREG protein, humanBiomarkers, TumorEGF Family of ProteinsEpidermal Growth FactorEpiregulinEREG protein, humanGlycoproteinsIntercellular Signaling Peptides and ProteinsKRAS protein, humanProto-Oncogene ProteinsProto-Oncogene Proteins p21(ras)ras ProteinsRNA, Messenger

Identifiers

PMID22409860
PMCPMC3317853
OpenAlexW2053737356

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.