Evidence map›Paper›PMID 11358903›Full record

ArticleGut2001

Microsatellite instability and the clinicopathological features of sporadic colorectal cancer.

R Ward, A Meagher, I Tomlinson, T O'Connor, M Norrie, R Wu, N Hawkins

Open access · bronzeAbstract read
In one paragraph

Article in Gut, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 157 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
157citing papers in PubMed, 3 pooled it
14.6field-weighted citation impact, top 1% 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

157 citing papers in PubMed, 3 syntheses or guidelines pooled it, 384 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Trial
  6. Body size and incident colorectal cancer: a prospective study of older women.Cancer prevention research (Philadelphia, Pa.) · 2010
    Trial
  7. Trial
  8. Insulin, glucose, insulin resistance, and incident colorectal cancer in male smokers.Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association · 2006
    Trial
  9. Article
  10. Article
  11. Low microsatellite instability revisited: a review.Virchows Archiv : an international journal of pathology · 2026
    Review
  12. World journal of gastrointestinal oncology · 2025
    Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

97 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 2 institutions in 2 countries.

R WardDepartment of Medical Oncology, St Vincent's Hospital, Victoria St, Darlinghurst, NSW, 2010, Australia. r.ward@garvan.unsw.edu.au
A Meagher
I Tomlinson
T O'Connor
M Norrie
R Wu
N Hawkins
St Vincent's Hospital Sydney · AUThe Honourable Society of Lincoln's Inn · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

aimsIn this study, we prospectively examined the clinical significance of the microsatellite instability (MSI) phenotype in sporadic colorectal cancer, and investigated methods for effective identification of these tumours in routine pathology practice.

methodsDNA was extracted from 310 tumours collected from 302 consecutive individuals undergoing curative surgery for sporadic colorectal cancer. Microsatellite status was determined by polymerase chain reaction amplification using standard markers, while immunostaining was used to examine expression of MLH1, MSH2, and p53.

resultsEleven per cent of tumours showed high level instability (MSI-H), 6.8% had low level instability (MSI-L), and the remainder were stable. MSI-H tumours were significantly more likely to be of high histopathological grade, have a mucinous phenotype, and to harbour increased numbers of intraepithelial lymphocytes. They were also more likely to be right sided, occur in women, and be associated with improved overall survival. In total, 25 (8%) tumours showed loss of staining for MLH1 and a further three tumours showed absence of staining for MSH2. The positive and negative predictive value of immunohistochemistry in the detection of MSI-H tumours was greater than 95%.

conclusionsWe conclude that the MSI-H phenotype constitutes a pathologically and clinically distinct subtype of sporadic colorectal cancer. Immunohistochemical staining for MLH1 and MSH2 represents an inexpensive and accurate means of identifying such tumours.

Indexed as

AdultAgedAged, 80 and overColonic NeoplasmsFemaleGenes, p53Genes, rasHumansMaleMicrosatellite RepeatsMiddle AgedMultivariate AnalysisMutationNeoplasm StagingPhenotypePolymerase Chain Reaction

Identifiers

PMID11358903
PMCPMC1728324
OpenAlexW2127330908

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.