Evidence map›Paper›PMID 12529664›Full record

ArticleLeukemia2003

Methylation of the hMLH1 promoter and its association with microsatellite instability in acute myeloid leukemia.

C H Seedhouse, E P Das-Gupta, N H Russell

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Leukemia, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 12% 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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 55 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Review
  5. Review
  6. Review
  7. National Institutes of Health Hematopoietic Cell Transplantation Late Effects Initiative: The Subsequent Neoplasms Working Group Report.Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation · 2017
    Article
  8. Review
  9. Novel agents for the treatment of childhood acute leukemia.Therapeutic advances in hematology · 2015
    Review
  10. Review
  11. Article
  12. DNA methyltransferases, DNA damage repair, and cancer.Advances in experimental medicine and biology · 2013
    Review
  13. Subsequent malignant neoplasms after hematopoietic cell transplantation.Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation · 2012
    Review
  14. Role of genetic susceptibility in development of treatment-related adverse outcomes in cancer survivors.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2011
    Review
  15. Epigenetic changes of DNA repair genes in cancer.Journal of molecular cell biology · 2011
    Review
  16. Article
  17. Epigenetics in acute myeloid leukemia.Seminars in oncology · 2008
    Review
  18. Review
  19. Article
  20. Review
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

3 authors at 2 institutions in 1 country.

C H SeedhouseDivision of Haematology, School of Clinical Laboratory Sciences, University of Nottingham, and Nottingham City Hospital, Nottingham, UK. seedhouse@nottingham.ac.uk
E P Das-Gupta
N H Russell
Nottingham City Hospital · GBUniversity of Nottingham · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The hMLH1 and hMSH2 genes are involved in the DNA mismatch repair (MMR) pathway. Defects in either of these genes have been associated with genetic instability in a wide variety of malignancies. A molecular mechanism involved in aberrant MMR gene expression is the epigenetic silencing of transcription by promoter methylation. The importance of MMR promoter methylation in leukemia is presently unclear and we have therefore undertaken a detailed analysis of the promoter regions of hMLH1 and hMSH2 using the technique of bisulfite genomic sequencing. DNA from 55 patients with acute myeloid leukemia (AML) including 23 patients with therapy-related AML (t-AML) have been analyzed. Two patients with de novo AML demonstrated extensive methylation throughout the whole hMLH1 region sequenced, one of whom had previously shown widespread genetic instability, measured as microsatellite instability (MSI). However methylation of hMLH1 was not found in t-AML which has previously been associated with MSI. In addition, methylation was seen at a restricted region of the hMLH1 promoter in both AML patients and healthy controls. The significance of this methylated region of the hMLH1 promoter is uncertain, however, our results confirm that in some patients with AML extensive methylation of hMLH1, but not of hMSH2 may occur, and as is the case in solid tumors this can be associated with the presence of a defective DNA mismatch repair pathway resulting in MSI.

Indexed as

DNA-Binding ProteinsDNA MethylationMicrosatellite RepeatsPromoter Regions, GeneticAcute DiseaseAdaptor Proteins, Signal TransducingAdolescentAgedBase Pair MismatchCarrier ProteinsCase-Control StudiesCpG IslandsDNA, NeoplasmDNA PrimersDNA RepairFemaleAdaptor Proteins, Signal TransducingCarrier ProteinsDNA-Binding ProteinsDNA, NeoplasmDNA PrimersMLH1 protein, humanMSH2 protein, humanMutL Protein Homolog 1MutS Homolog 2 ProteinNeoplasm ProteinsNuclear ProteinsProto-Oncogene Proteins

Identifiers

PMID12529664
OpenAlexW2055031213

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.