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Inferring genomic loss and location of tumor suppressor genes from high density genotypes
Hui Wang, Department of Statistics, UCLA
Yohan Lee, Department of Human Genetics, UCLA
Stanley Nelson, Department of Human Genetics, UCLA
Chiara Sabatti, Department of Statistics, UCLA
ABSTRACT: Novel technologies, such as the 10k Affymetrix genotyping array, allow scoring of genetic
polymorphisms at a very high density across the genome. This allows researchers to conduct
traditional inquiries at an unprecedented resolution, while simutaneously motivates novel types
of analysis, aimed at exploiting the increased information contained in these datasets. We
consider how genotypes of cancer cell lines can be used to reconstruct genomic loss events
and map putative tumor suppressor genes (TSG). Using a hidden Markov model framework,
we adapt a previously described model for genomic instability in cancers to the current data
structure. Simulations indicate that our procedure can be powerful and accurate and initial
application to real data leads to encouraging results.
SUGGESTED CITATION: Hui Wang, Yohan Lee, Stanley Nelson, and Chiara Sabatti,
"Inferring genomic loss and location of tumor suppressor genes from high density genotypes"
(April 12, 2005).
Department of Statistics, UCLA.
Department of Statistics Papers.
Paper 2005041201.
http://repositories.cdlib.org/uclastat/papers/2005041201
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