A novel CpG-methylation-based nomogram predicts survival in colorectal cancer

Autor: Xiaokang Wang, Danwen Wang, Jinfeng Liu, Maohui Feng, Xiongzhi Wu
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Epigenetics, Vol 15, Iss 11, Pp 1213-1227 (2020)
Druh dokumentu: article
ISSN: 1559-2294
1559-2308
15592294
DOI: 10.1080/15592294.2020.1762368
Popis: Aberrant DNA methylation is significantly associated with the prognosis of patients with colorectal cancer (CRC). Therefore, the aim of this study was to develop a CpG-methylation-based nomogram for prognostic prediction in CRC. First, 378 CRC patients with methylation data from The Cancer Genome Atlas were randomly divided into training cohort (n = 249) and test cohort (n = 129). A multistep screening strategy was performed to identify six CpG sites that were significantly associated with overall survival in the training cohort. Then, Cox regression modelling was performed to construct a prognostic signature based on the candidate CpG sites. The six-CpG signature successfully separated patients into high-risk and low-risk groups in both training and test cohorts, and its performance was superior to that of previously published methylation markers (P
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