DESCRIPTION:

QTL associated with osteosarcoma susceptibility 1. This interval was obtained by using a fixed interval width of 25 Mbp around the peak marker (58658647)

LABEL:

QTL-Ossc1-Mouse-Chr 7

SCORE TYPE:

Binary

DATE ADDED:

2012-04-02

DATE UPDATED:

2020-05-06

SPECIES:

URI:

http://www.informatics.jax.org/searches/accession_report.cgi?id=MGI:3577289

AUTHORS:

Rosemann M, Lintrop M, Favor J, Atkinson MJ

TITLE:

Bone tumorigenesis induced by alpha-particle radiation: mapping of genetic loci influencing predisposition in mice.

JOURNAL:

Radiation research Apr 2002, Vol 157, pp. 426-34

ABSTRACT:

The present study was carried out to determine the extent to which genetic factors modify the incidence of radiation-induced bone tumorigenesis in mice, and to map putative susceptibility genes. We conducted a genome-wide linkage analysis in a cohort of 47 interstrain backcrossed mice. After the mice were injected with the bone-seeking alpha-particle-emitting radionuclide (227)Th, 21 of the mice developed osteosarcomas. Two loci, one on chromosome 7 close to D7Mit145 and a second on chromosome 14 (D14Mit125), exhibited suggestive linkage to osteosarcoma predisposition, with LOD scores of 1.37 and 1.05, respectively. The LOD score increased considerably when interaction between these two loci was taken into account (LOD = 3.48). Nine of 12 mice inheriting a susceptibility allele at both loci developed osteosarcomas after (227)Th injection, compared to only four osteosarcomas in 18 animals that did not inherit either of the susceptibility alleles. Variance component analysis revealed that these genetic factors determine approximately one-fifth of the total incidence of osteosarcomas. This study demonstrates the presence of a genetic component that modulates predisposition to radiation-induced osteosarcoma. PUBMED: 11893245
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