Evidence map›Paper›PMID 19346169›Full record

ArticleDNA repair2009

Targeted deletion of the genes encoding NTH1 and NEIL1 DNA N-glycosylases reveals the existence of novel carcinogenic oxidative damage to DNA.

Michael K Chan, Maria T Ocampo-Hafalla, Vladimir Vartanian, Pawel Jaruga, Güldal Kirkali, Karen L Koenig, Stuart Brown, R Stephen Lloyd, Miral Dizdaroglu, George W Teebor

Abstract read
In one paragraph

Article in DNA repair, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed
5.0field-weighted citation impact, top 4% 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

66 citing papers in PubMed, 122 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. Research progress on the role of the NEIL family in cancer.Frontiers in cell and developmental biology · 2025
    Review
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. DNA glycosylase NEIL2 functions in multiple cellular processes.Progress in biophysics and molecular biology · 2021
    Review
  12. Review
  13. Review
  14. Review
  15. Article
  16. Article
  17. Review
  18. Review
  19. Article
  20. Review

6 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

10 authors at 4 institutions in 3 countries.

Michael K ChanDepartment of Pathology and Cancer Institute, New York University School of Medicine, New York, NY, United States.
Maria T Ocampo-Hafalla
Vladimir Vartanian
Pawel Jaruga
Güldal Kirkali
Karen L Koenig
Stuart Brown
R Stephen Lloyd
Miral Dizdaroglu
George W Teebor
New York University · USNational Institute of Standards and Technology · USOregon Health & Science University · USDokuz Eylül University · TR

Funding

DNA Repair Deficiency Associated with Obesity and the Metabolic SyndromeR01DK075974 · NIDDK · OREGON HEALTH & SCIENCE UNIVERSITY · PI LLOYD, R. STEPHEN · 2009 to 2013
$1.7M
DNA Repair Deficiency Associated with Obesity and the Meatbolic SyndromeR56DK075974 · NIDDK · OREGON HEALTH & SCIENCE UNIVERSITY · PI LLOYD, R STEPHEN · 2007 to 2007
$115k
NIDDK NIH HHS DK075974NIDDK NIH HHS R01 DK075974NIDDK NIH HHS R56 DK075974
6 · The paper itself

Abstract

We have generated a strain of mice lacking two DNA N-glycosylases of base excision repair (BER), NTH1 and NEIL1, homologs of bacterial Nth (endonuclease three) and Nei (endonuclease eight). Although these enzymes remove several oxidized bases from DNA, they do not remove the well-known carcinogenic oxidation product of guanine: 7,8-dihydro-8-oxoguanine (8-OH-Gua), which is removed by another DNA N-glycosylase, OGG1. The Nth1-/-Neil1-/- mice developed pulmonary and hepatocellular tumors in much higher incidence than either of the single knockouts, Nth1-/- and Neil1-/-. The pulmonary tumors contained, exclusively, activating GGT-->GAT transitions in codon 12 of K-ras of their DNA. Such transitions contrast sharply with the activating GGT-->GTT transversions in codon 12 of K-ras of the pathologically similar pulmonary tumors, which arose in mice lacking OGG1 and a second DNA N-glycosylase, MUTY. To characterize the biochemical phenotype of the knockout mice, the content of oxidative DNA base damage was analyzed from three tissues isolated from control, single and double knockout mice. The content of 8-OH-Gua was indistinguishable among all genotypes. In contrast, the content of 4,6-diamino-5-formamidopyrimidine (FapyAde) and 2,6-diamino-4-hydroxy-5-formamidopyrimidine (FapyGua) derived from adenine and guanine, respectively, were increased in some but not all tissues of Neil1-/- and Neil1-/-Nth1-/- mice. The high incidence of tumors in our Nth1-/-Neil1-/- mice together with the nature of the activating mutation in the K-ras gene of their pulmonary tumors, reveal for the first time, the existence of mutagenic and carcinogenic oxidative damage to DNA which is not 8-OH-Gua.

Indexed as

DNA DamageGene DeletionAnimalsBase SequenceBrainDeoxyribonuclease (Pyrimidine Dimer)DNA GlycosylasesDNA Mutational AnalysisFemaleGas Chromatography-Mass SpectrometryGenes, rasGuanineKidneyLiverLiver NeoplasmsLung Neoplasms2,6-diamino-4-hydroxy-5-formamidopyrimidine4,6-diamino-5-N-formamidopyrimidine7,8-dihydro-8-oxoguanineDeoxyribonuclease (Pyrimidine Dimer)DNA GlycosylasesGuanineNeil1 protein, mouseNthl1 protein, mousePyrimidines

Identifiers

PMID19346169
PMCPMC4894318
OpenAlexW2031027111

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.