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Evidence for complex multigenic inheritance of radiation AML susceptibility in mice revealed using a surrogate phenotypic assay

Darakhshan, F., Badie, C., Moody, J., Coster, M., Finnon, R., Finnon, P., Edwards, A. A., Szluinska, M., Skidmore, C. J., Yoshida, K., Ullrich, R., Cox, R. and Bouffler, S. D. (2006) Evidence for complex multigenic inheritance of radiation AML susceptibility in mice revealed using a surrogate phenotypic assay. Carcinogenesis, 27 (2). pp. 311-318. ISSN 0143-3334

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To link to this item DOI: 10.1093/carcin/bgi207

Abstract/Summary

The mapping of genes which affect individual cancer risk is an important but complex challenge. A surrogate assay of susceptibility to radiation-induced acute myeloid leukaemia (AML) in the mouse based on chromosomal radiosensitivity has been developed and validated. This assay was applied to the mapping of radiation-induced AML risk modifier loci by association with microsatellite markers. A region on chromosome (chr) 18 with strong association is identified and confirmed by backcross analysis. Additional loci on chrs 8 and 13 show significant association. A key candidate gene Rbbp8 on chr18 is identified. Rbbp8 is shown to be upregulated in response to X-irradiation in the AML sensitive CBA strain but not AML resistant C57BL/6 strain. This study demonstrates the strength of utilizing surrogate endpoints of cancer susceptibility in the mapping of mouse loci and identifies additional loci that may affect radiation cancer risk.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Biological Sciences
ID Code:10143
Uncontrolled Keywords:ACUTE MYELOID-LEUKEMIA, TERMINAL BINDING-PROTEIN, BREAST-CANCER, TUMOR-SUSCEPTIBILITY, GENE-EXPRESSION, CBA/H MICE, SJL/J MICE, MOUSE, INDUCTION, REGION

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