Evidence map›Paper›PMID 8430068›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America1993

Benzo[a]pyrene-induced murine skin tumors exhibit frequent and characteristic G to T mutations in the p53 gene.

B Ruggeri, M DiRado, S Y Zhang, B Bauer, T Goodrow, A J Klein-Szanto

Open access · greenAbstract readComparative Study
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 1993. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
5.4field-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

34 citing papers in PubMed, 154 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Oncotarget · 2018
    Article
  6. Article
  7. Macrophage migration inhibitory factor protects from nonmelanoma epidermal tumors by regulating the number of antigen-presenting cells in skin.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2017
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  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

6 authors at 1 institution in 1 country.

B RuggeriDepartment of Pathology, Fox Chase Cancer Center, Philadelphia, PA 19111.
M DiRado
S Y Zhang
B Bauer
T Goodrow
A J Klein-Szanto
Fox Chase Cancer Center · US

Funding

WORD PROCESSING CENTER--COREP30CA006927 · NCI · RESEARCH INST OF FOX CHASE CAN CTR · PI Margaret von Mehren · 1985 to 2026
$138.8M
TUMOR SUPPRESSOR GENES IN CHEMICALLY INDUCED SKIN TUMORSR01CA053713 · NCI · FOX CHASE CANCER CENTER · PI KLEIN-SZANTO, ANDRES J · 1991 to 1995
–
NCI NIH HHS CA-06927NCI NIH HHS CA-09035-16NCI NIH HHS CA-53713
6 · The paper itself

Abstract

Human tobacco-related cancers exhibit a high frequency of G to T transversions in the mutation hot spot region of the p53 tumor suppressor gene, possibly the result of specific mutagens in tobacco smoke, most notably benzo[a]pyrene (B[a]P). No in vivo animal model of B[a]P-induced tumorigenesis has been used, however, to substantiate these molecular epidemiological data experimentally. Direct DNA sequence analysis of the hot spot region (exons 5-8 inclusive) of murine p53 was performed in 20 skin tumors induced by a complete carcinogenesis protocol with B[a]P. Sequence analyses revealed numerous heterozygous missense mutations in carcinomas, specifically in exons 7 and 8 of the p53 gene, and targeting exclusively guanine residues. Moreover, 70% (5/7) of the mutations characterized were G to T transversions. In contrast, direct DNA sequence analysis of 36 skin tumors induced by 7,12-dimethylbenz[a]anthracene (DMBA) in either a complete carcinogenesis protocol or in a two-stage carcinogenesis protocol revealed a 30% frequency of heterozygous p53 mutations, with the majority of mutations found in carcinomas, but only a single G to T transversion (1/8). Thus, while mutation frequencies are similar, the pattern and type of p53 mutations in B[a]P-induced skin tumors differs significantly from the mutation spectra in DMBA-induced squamous neoplasias. These in vivo findings in B[a]P-induced tumors lend support to in vitro and molecular epidemiological evidence, suggesting that the p53 tumor suppressor gene may be a selective target of metabolically activated B[a]P species etiologically associated with human tobacco-related cancers.

Indexed as

9,10-Dimethyl-1,2-benzanthraceneAnimalsBenzo(a)pyreneCarcinoma, Squamous CellGenes, Tumor SuppressorHeterozygoteImmunohistochemistryMiceMutationNeoplasms, ExperimentalPapillomaPoint MutationPolymerase Chain ReactionSkin NeoplasmsTumor Suppressor Protein p539,10-Dimethyl-1,2-benzanthraceneBenzo(a)pyreneTumor Suppressor Protein p53

Identifiers

PMID8430068
PMCPMC45801
OpenAlexW1978880592

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.