Evidence map›Paper›PMID 24879338›Full record

ArticlePloS one2014

HER2 status in colorectal cancer: its clinical significance and the relationship between HER2 gene amplification and expression.

An Na Seo, Yoonjin Kwak, Duck-Woo Kim, Sung-Bum Kang, Gheeyoung Choe, Woo Ho Kim, Hye Seung Lee

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 88 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
88citing papers in PubMed, 2 pooled it
6.9field-weighted citation impact, top 2% 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

88 citing papers in PubMed, 2 syntheses or guidelines pooled it, 173 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pertuzumab Plus Trastuzumab for Treatment-RefractoryJCO clinical cancer informatics · 2022
    Trial
  4. Assessment of a HER2 scoring system for colorectal cancer: results from a validation study.Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc · 2015
    Trial
  5. Article
  6. Article
  7. Article
  8. Review
  9. HER2-targeted therapies beyond breast cancer - an update.Nature reviews. Clinical oncology · 2024
    Review
  10. Review
  11. Article
  12. Article
  13. Review
  14. Learning Outcomes of "GetSMART," Education for Diagnostics and Targeted Treatment for HER2+ Metastatic Gastric and Colorectal Cancers.Journal of cancer education : the official journal of the American Association for Cancer Education · 2024
    Article
  15. Review
  16. Review
  17. Review
  18. Review
  19. Article
  20. Review

28 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

7 authors at 3 institutions in 1 country.

An Na SeoDepartment of Pathology, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Republic of Korea.
Yoonjin KwakDepartment of Pathology, Seoul National University College of Medicine, Seoul, Republic of Korea.
Duck-Woo KimDepartment of Surgery, Seoul National University Bundang Hospital, Seongnam-si, Republic of Korea.
Sung-Bum KangDepartment of Surgery, Seoul National University Bundang Hospital, Seongnam-si, Republic of Korea.
Gheeyoung ChoeDepartment of Pathology, Seoul National University College of Medicine, Seoul, Republic of Korea; Department of Pathology, Seoul National University Bundang Hospital, Seongnam-si, Republic of Korea.
Woo Ho KimDepartment of Pathology, Seoul National University College of Medicine, Seoul, Republic of Korea.
Hye Seung LeeDepartment of Pathology, Seoul National University Bundang Hospital, Seongnam-si, Republic of Korea.
Seoul National University Bundang Hospital · KRSeoul National University · KRKyungpook National University Hospital · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study aimed at determining the incidence and clinical implications of HER2 status in primary colorectal cancer (CRC). HER2 status was investigated in two retrospective cohorts of 365 consecutive CRC patients (cohort 1) and 174 advanced CRC patients with synchronous or metachronous distant metastasis (cohort 2). HER2 status was determined by performing dual-color silver in-situ hybridization (SISH), mRNA in-situ hybridization (ISH), and immunohistochemistry (IHC). The incidence of HER2 protein overexpression (IHC 2+/3+) was approximately 6% (22 of 365 in cohort 1; 10 of 174 in cohort 2). HER2 gene amplification was observed in 5.8% of the patients from cohort 1 and 6.3% of the patients from cohort 2. HER2 gene amplification was more frequently observed in CRCs located in the rectum than in the right and left colon (P = 0.013 in cohort 1; P = 0.009 in cohort 2). HER2 status, determined by IHC, ISH, and dual-color SISH, was not significantly associated with aggressive CRC behaviour or patients' prognosis in both the cohorts. Of the combined cohort with a total of 539 cases, the concordance rate was 95.5% between dual-color SISH and IHC detection methods. On excluding equivocally immunostained cases (IHC 2+), the concordance rate was 97.7%. HER2 mRNA overtranscription, detected by ISH, significantly correlated with protein overexpression and gene amplification (P<0.001). HER2 gene amplification was identified in a minority of CRC patients with high concordance rates between dual-color SISH and IHC detection methods. Although HER2 status did not predict patients' prognosis, our findings may serve as a basis for future studies on patient selection for HER2 targeted therapy.

Indexed as

AdultAgedAged, 80 and overColorectal NeoplasmsErb-b2 Receptor Tyrosine KinasesFemaleGene AmplificationGene ExpressionHumansMaleMiddle AgedPrognosisRetrospective StudiesYoung AdultErb-b2 Receptor Tyrosine Kinases

Identifiers

PMID24879338
PMCPMC4039475
OpenAlexW2000028774

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.