Abstract:
:Co-expression analysis is widely used to predict gene function and to identify functionally related gene sets. However, co-expression analysis using human cancer transcriptomic data is confounded by somatic copy number alterations (SCNA), which produce co-expression signatures based on physical proximity rather than biological function. To better understand gene-gene co-expression based on biological regulation but not SCNA, we describe a method termed "Genomic Regression Analysis of Coordinated Expression" (GRACE) to adjust for the effect of SCNA in co-expression analysis. The results from analyses of TCGA, CCLE, and NCI60 data sets show that GRACE can improve our understanding of how a transcriptional network is re-wired in cancer. A user-friendly web database populated with data sets from The Cancer Genome Atlas (TCGA) is provided to allow customized query.
journal_name
Nat Communjournal_title
Nature communicationsauthors
Cai L,Li Q,Du Y,Yun J,Xie Y,DeBerardinis RJ,Xiao Gdoi
10.1038/s41467-017-02181-0subject
Has Abstractpub_date
2017-12-19 00:00:00pages
2187issue
1issn
2041-1723pii
10.1038/s41467-017-02181-0journal_volume
8pub_type
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