Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1988-2-17
pubmed:abstractText
An Eco-RI restriction fragment length polymorphism occurring in a DNA fragment containing the first exon of the murine KRAS2 gene was shown to correlate with the inherited susceptibility of inbred strains of mice to urethan (CAS: 51-79-6)-induced pulmonary adenomas. Eco-RI digestion of murine DNA yielded four KRAS2-specific fragments. Polymorphic variation occurred in the smallest molecular-weight fragment with alleles of either 0.70 or 0.55 kb in size. Genotyping of 14 inbred strains of mice revealed a correlation between KRAS2 Eco-RI polymorphic variation and the differential susceptibility among inbred strains to development of pulmonary adenomas. Strains with a high incidence of pulmonary adenomas, either spontaneously occurring or in response to carcinogen induction, had the 0.55-kb KRAS2 allele whereas adenoma-resistant strains had the 0.70-kb allele. Analysis of a series of recombinant inbred strains (AXB, BXA) that developed from reciprocal crosses between a highly susceptible strain (A/J) and a highly resistant strain (C57BL/6J) revealed a statistically significant threefold difference in lung tumor susceptibility on the basis of KRAS2 genotype. Further analysis of individual F2 mice of a C57BL/6 female X A/J male cross also demonstrated a threefold difference in tumor susceptibility on the basis of KRAS2 allelic variation.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0027-8874
pubmed:author
pubmed:issnType
Print
pubmed:volume
79
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1351-7
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1987
pubmed:articleTitle
KRAS2 as a genetic marker for lung tumor susceptibility in inbred mice.
pubmed:affiliation
Department of Biology, Yale University, New Haven, CT 06510.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.