Evidence map›Paper›PMID 8633014›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America1996

Increased cytosine DNA-methyltransferase activity is target-cell-specific and an early event in lung cancer.

S A Belinsky, K J Nikula, S B Baylin, J P Issa

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 1996. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
70citing papers in PubMed, 2 pooled it
5.6field-weighted citation impact, top 3% 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

70 citing papers in PubMed, 2 syntheses or guidelines pooled it, 238 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Insights into the Inhibitory Mechanisms of the Covalent Drugs for DNMT3A.International journal of molecular sciences · 2023
    Article
  5. Article
  6. Targeting Epigenetics in Lung Cancer.Cold Spring Harbor perspectives in medicine · 2021
    Review
  7. Article
  8. Article
  9. Article
  10. Epigenetics of lung cancer: a translational perspective.Cellular oncology (Dordrecht, Netherlands) · 2019
    Review
  11. Article
  12. Article
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  14. Article
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  16. Article
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  18. Review
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  20. Article

10 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

4 authors at 1 institution in 1 country.

S A BelinskyInhalation Toxicology Research Institute, Albuquerque, NM 87185, USA.
K J Nikula
S B Baylin
J P Issa
Johns Hopkins University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The association between increased DNA-methyltransferase (DNA-MTase) activity and tumor development suggest a fundamental role for this enzyme in the initiation and progression of cancer. A true functional role for DNA-MTase in the neoplastic process would be further substantiated if the target cells affected by the initiating carcinogen exhibit changes in enzyme activity. This hypothesis was addressed by examining DNA-MTase activity in alveolar type II (target) and Clara (nontarget) cells from A/J and C3H mice that exhibit high and low susceptibility, respectively, for lung tumor formation. Increased DNA-MTase activity was found only in the target alveolar type II cells of the susceptible A/J mouse and caused a marked increase in overall DNA methylation in these cells. Both DNA-MTase and DNA methylation changes were detected 7 days after carcinogen exposure and, thus, were early events in neoplastic evolution. Increased gene expression was also detected by RNA in situ hybridization in hypertrophic alveolar type II cells of carcinogen-treated A/J mice, indicating that elevated levels of expression may be a biomarker for premalignancy. Enzyme activity increased incrementally during lung cancer progression and coincided with increased expression of the DNA-MTase activity are strongly associated with neoplastic development and constitute a key step in carcinogenesis. The detection of premalignant lung disease through increased DNA-MTase expression and the possibility of blocking the deleterious effects of this change with specific inhibitors will offer new intervention strategies for lung cancer.

Indexed as

Cell Transformation, NeoplasticGene ExpressionAnimalsCarcinogensDNA-Cytosine MethylasesDNA Modification MethylasesHyperplasiaLungLung NeoplasmsMethylationMiceMice, Inbred AMice, Inbred C3HNitrosaminesSpecies Specificity4-(N-methyl-N-nitrosamino)-1-(3-pyridyl)-1-butanoneCarcinogensDNA-Cytosine MethylasesDNA Modification MethylasesNitrosamines

Identifiers

PMID8633014
PMCPMC39484
OpenAlexW2049662309

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.