Estimation of tumor heterogeneity using CGH array data |
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Authors: | Kai Wang Jian Li Shengting Li Lars Bolund Carsten Wiuf |
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Institution: | (1) Institute of Human Genetics, University of Aarhus, Aarhus, Denmark;(2) BiRC – Bioinformatics Research Center, University of Aarhus, Aarhus, Denmark |
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Abstract: | Background Array-based comparative genomic hybridization (CGH) is a commonly-used approach to detect DNA copy number variation in whole
genome-wide screens. Several statistical methods have been proposed to define genomic segments with different copy numbers
in cancer tumors. However, most tumors are heterogeneous and show variation in DNA copy numbers across tumor cells. The challenge
is to reveal the copy number profiles of the subpopulations in a tumor and to estimate the percentage of each subpopulation. |
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