TY - JOUR A1 - Yoon, Kwiyeom A1 - Lee, Sunghoon A1 - Han, Tae-Su A1 - Moon, So Yeon A1 - Yun, Sun Mi A1 - Kong, Seong-Ho A1 - Jho, Sungwoong A1 - Choe, Jinny A1 - Yu, Jieun A1 - Lee, Hyuk-Joon A1 - Park, Ji Hyun A1 - Kim, Hak-Min A1 - Lee, So Yeun A1 - Park, Jongsun A1 - Kim, Woo-Ho A1 - Bhak, Jong A1 - Yang, Han-Kwang A1 - Kim, Seong-Jin T1 - Comprehensive genome- and transcriptome-wide analyses of mutations associated with microsatellite instability in Korean gastric cancers Y1 - 2013/07/01 JF - Genome Research JO - Genome Research SP - 1109 EP - 1117 DO - 10.1101/gr.145706.112 VL - 23 IS - 7 UR - http://genome.cshlp.org/content/23/7/1109.abstract N2 - Microsatellite instability (MSI) is a critical mechanism that drives genetic aberrations in cancer. To identify the entire MS mutation, we performed the first comprehensive genome- and transcriptome-wide analyses of mutations associated with MSI in Korean gastric cancer cell lines and primary tissues. We identified 18,377 MS mutations of five or more repeat nucleotides in coding sequences and untranslated regions of genes, and discovered 139 individual genes whose expression was down-regulated in association with UTR MS mutation. In addition, we found that 90.5% of MS mutations with deletions in gene regions occurred in UTRs. This analysis emphasizes the genetic diversity of MSI-H gastric tumors and provides clues to the mechanistic basis of instability in microsatellite unstable gastric cancers. ER -