TY - JOUR A1 - Kostic, Aleksandar D. A1 - Gevers, Dirk A1 - Pedamallu, Chandra Sekhar A1 - Michaud, Monia A1 - Duke, Fujiko A1 - Earl, Ashlee M. A1 - Ojesina, Akinyemi I. A1 - Jung, Joonil A1 - Bass, Adam J. A1 - Tabernero, Josep A1 - Baselga, José A1 - Liu, Chen A1 - Shivdasani, Ramesh A. A1 - Ogino, Shuji A1 - Birren, Bruce W. A1 - Huttenhower, Curtis A1 - Garrett, Wendy S. A1 - Meyerson, Matthew T1 - Genomic analysis identifies association of Fusobacterium with colorectal carcinoma Y1 - 2011/10/18 JF - Genome Research JO - Genome Research DO - 10.1101/gr.126573.111 UR - http://genome.cshlp.org/content/early/2011/10/04/gr.126573.111.abstract N2 - The tumor microenvironment of colorectal carcinoma is a complex community of genomically altered cancer cells, nonneoplastic cells, and a diverse collection of microorganisms. Each of these components may contribute to carcinogenesis; however, the role of the microbiota is the least well understood. We have characterized the composition of the microbiota in colorectal carcinoma using whole genome sequences from nine tumor/normal pairs. Fusobacterium sequences were enriched in carcinomas, confirmed by quantitative PCR and 16S rDNA sequence analysis of 95 carcinoma/normal DNA pairs, while the Bacteroidetes and Firmicutes phyla were depleted in tumors. Fusobacteria were also visualized within colorectal tumors using FISH. These findings reveal alterations in the colorectal cancer microbiota; however, the precise role of Fusobacteria in colorectal carcinoma pathogenesis requires further investigation. ER -