Evidence map›Paper›PMID 22322191›Full record

ArticleModern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc2012

Immunohistochemical testing of conventional adenomas for loss of expression of mismatch repair proteins in Lynch syndrome mutation carriers: a case series from the Australasian site of the colon cancer family registry.

Michael D Walsh, Daniel D Buchanan, Sally-Ann Pearson, Mark Clendenning, Mark A Jenkins, Aung Ko Win, Rhiannon J Walters, Kevin J Spring, Belinda Nagler, Erika Pavluk and 15 more

Open access · bronzeAbstract read
In one paragraph

Article in Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
4.0field-weighted citation impact, top 6% 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

29 citing papers in PubMed, 79 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. An unusual phenotype occurs in 15% of mismatch repair-deficient tumors and is associated with non-colorectal cancers and genetic syndromes.Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc · 2022
    Article
  8. Review
  9. Review
  10. Article
  11. Review
  12. Review
  13. Article
  14. Frequent loss of mutation-specific mismatch repair protein expression in nonneoplastic endometrium of Lynch syndrome patients.Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc · 2020
    Article
  15. Article
  16. A practical guide to biomarkers for the evaluation of colorectal cancer.Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc · 2019
    Review
  17. Review
  18. Single-center study of Lynch syndrome screening in colorectal polyps.Hereditary cancer in clinical practice · 2019
    Article
  19. Two-stain immunohistochemical screening for Lynch syndrome in colorectal cancer may fail to detect mismatch repair deficiency.Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc · 2018
    Article
  20. 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

25 authors at 12 institutions in 4 countries.

Michael D WalshFamilial Cancer Laboratory, QIMR, Herston, QLD, Australia.
Daniel D Buchanan
Sally-Ann Pearson
Mark Clendenning
Mark A Jenkins
Aung Ko Win
Rhiannon J Walters
Kevin J Spring
Belinda Nagler
Erika Pavluk
Sven T Arnold
Jack Goldblatt
Jill George
Graeme K Suthers
Kerry Phillips
John L Hopper
Jeremy R Jass
John A Baron
Dennis J Ahnen
Stephen N Thibodeau
Noralane Lindor
Susan Parry
Neal I Walker
Christophe Rosty
Joanne P Young
The University of Melbourne · AUMayo Clinic · USServices Australia · AUAuckland City Hospital · NZDenver VA Medical Center · USEnvoi Specialist Pathologists · AURoyal Brisbane and Women's Hospital · AUSouth Australia Pathology · AUSt Mark's Hospital · GBThe University of Adelaide · AUThe University of Queensland · AUUniversity of North Carolina at Chapel Hill · US

Funding

FAMILIAL COLORECTAL NEOPLASIA COLLABORATIVE GROUPU01CA074800 · NCI · MAYO CLINIC ROCHESTER · PI LINDOR, NORALANE MOREY · 1997 to 2007
$9.1M
AUSTRALASIAN COLORECTAL CANCER FAMILY REGISTRYU01CA097735 · NCI · UNIVERSITY OF MELBOURNE · PI HOPPER, JOHN L · 2002 to 2007
$6.9M
Redox Regulation of Metastasis by Sod2K22CA095011 · NCI · ALBANY MEDICAL COLLEGE · PI MELENDEZ, JUAN ANDRES · 2002 to 2004
$446k
NCI NIH HHS CA-95-011NCI NIH HHS U01 CA074800NCI NIH HHS U01 CA097735
6 · The paper itself

Abstract

Debate continues as to the usefulness of assessing adenomas for loss of mismatch repair protein expression to identify individuals with suspected Lynch syndrome. We tested 109 polyps from 69 proven mutation carriers (35 females and 34 males) belonging to 49 Lynch syndrome families. All polyps were tested by immunohistochemistry for four mismatch repair proteins MLH1, MSH2, MSH6 and PMS2. Detailed pathology review was performed by specialist gastrointestinal pathologists. The majority of polyps (86%) were conventional adenomas (n=94), with 65 tubular and 28 tubulovillous adenomas and a single villous adenoma. The remaining 15 lesions (14%) were serrated polyps. Overall, loss of mismatch repair expression was noted for 78/109 (72%) of polyps. Loss of mismatch repair expression was seen in 74 of 94 (79%) conventional adenomas, and 4 of 15 (27%) serrated polyps from mismatch repair gene mutation carriers. In all instances, loss of expression was consistent with the underlying germline mutation. Mismatch repair protein expression was lost in 27 of 29 adenomas with a villous component compared with 47 of 65 adenomas without this feature (93 vs 73%; P=0.028). A strong trend was observed for high-grade dysplasia. Mismatch repair deficiency was observed in 12 of 12 conventional adenomas with high-grade dysplasia compared with 60 of 79 with low-grade dysplasia (100 vs 76%; P=0.065). We were unable to demonstrate a significant association between conventional adenoma size or site and mismatch repair deficiency. All (4/4 or 100%) of the serrated polyps demonstrating mismatch repair deficiency were traditional serrated adenomas from a single family. Diagnostic testing of adenomas in suspected Lynch syndrome families is a useful alternative in cases where cancers are unavailable. The overwhelming majority of conventional adenomas from mutation carriers show loss of mismatch repair protein expression concordant with the underlying germline mutation.

Indexed as

DNA Mismatch RepairAdenomatous PolypsAdultAgedAged, 80 and overBiomarkers, TumorColonic NeoplasmsColorectal Neoplasms, Hereditary NonpolyposisDNA-Binding ProteinsDNA Mutational AnalysisDNA, NeoplasmFamily HealthFemaleGenetic Predisposition to DiseaseGerm-Line MutationHeterozygoteBiomarkers, TumorDNA-Binding ProteinsDNA, Neoplasm

Identifiers

PMID22322191
PMCPMC3477239
OpenAlexW2058438744

What OpenQuestion holds

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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.