Abstract

To explore the expression profile of KCNQ1OT1 and its prognostic value in colon and rectal adenocarcinoma (COAD and READ) separately. clinicopathological, genomic and survival data from The Cancer Genome Atlas and GSE39582 were obtained for a secondary analysis. KCNQ1OT1 was significantly up-regulated in both COAD and READ compared with adjacent normal tissues. However, its up-regulation was only independently associated with shorter overall survival (hazard ratio: 2.02; 95% CI: 1.18-3.46; p =0.01) and recurrence-free survival (hazard ratio: 2.79, 95% CI: 1.54-5.07; p < 0.01) in COAD, but not in READ. KCNQ1OT1 up-regulation might serve as a valuable independent prognostic indicator of shorter overall survival and recurrence-free survival of COAD, but not READ.

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