Mouse Tumor Biology Database (MTB)
MTB Home   Help
Search for Help
 
in these sections
Search Forms
Tumor
Strain
Genetics
Pathology Images
Reference
Advanced
Search MTB Using Human Genes
Gene Expression Data Sets

Additional Resources
new PDX Like Me
PDX Finder
PDX Model Search
Faceted Tumor Search
Dynamic Tumor Frequency Grid
Other Cancer Websites
Immunohistochemistry
Lymphoma Pathology

Mouse Genome Informatics
The Jackson Laboratory
Citing These Resources
Warranty Disclaimer
& Copyright Notice

Send Questions and
Comments to User Support.

Last Database Update
2019-12-08
MTB 3.0
 
HelpHelp and Documentation Reference Detail  
Reference
Title: Allele-specific activation and expression of the K-ras gene in hybrid mouse lung tumors induced by chemical carcinogens.
Authors: Chen B; You L; Wang Y; Stoner GD; You M
Journal: Carcinogenesis
Volume: 15
Issue: 9
Year: 1994
Pages: 2031-5
Abstract: A mouse hybrid, (C3H x A/J)F1 or C3A, was developed by crossing male A/J mice (high lung tumor susceptibility) with female C3H mice (low lung tumor susceptibility). The lung tumor responses of the C3A mice to dimethylnitrosamine (DMN) or benzo[a]pyrene (B[a]P) were found to be intermediate between those of the two parental strains. Mutational activation of the K-ras gene was found at a high frequency in both the B[a]P- and DMN-induced C3A lung tumors. To explore the genetic basis of the K-ras gene involvement in mouse lung tumor susceptibility, the parental origin of the K-ras oncogene in the chemically induced C3A lung tumors was determined. K-ras oncogenes were found on the allele inherited from the susceptible A/J parent in 14/16 of DMN-induced tumors and 15/17 of B[a]P-induced tumors from C3A mice. Furthermore, the K-ras mRNA transcribed from the A/J allele was 5-20 times more than C3H K-ras transcripts in 10/10 DMN-induced and 10/10 B[a]P-induced C3A lung tumors. These data suggest that an activated A/J K-ras allele could be more tumorigenic than an activated C3H allele due to the differential expression of the two alleles in lung cells.
Additional
Information
in MTB
Tumor Records (10)
Strains (3)
Other
Accession
IDs
J:20674  Mouse Genome Informatics
7923598  National Library of Medicine/PubMed