Hsa_circ_0004831 serves as a blood-based prognostic biomarker for colorectal cancer and its potentially circRNA-miRNA-mR
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PRIMARY RESEARCH
Cancer Cell International Open Access
Hsa_circ_0004831 serves as a blood‑based prognostic biomarker for colorectal cancer and its potentially circRNA‑miRNA‑mRNA regulatory network construction Linlin Xing1 , Mengyan Xia1, Xin Jiao1 and Ling Fan2*
Abstract Background: Colorectal cancer (CRC) is a common malignant tumor with unsatisfactory overall prognosis. CircRNAs could be promising prognostic biomarkers in cancers, and play important role in the process of tumorigenesis and progression. Here, we explored the role of hsa_circ_0004831 in blood extracellular vesicles and its prognostic value in CRC. Methods: The circRNA and mRNA expression level matrix in extracellular vesicles of CRC and normal samples were obtained from the exoRBase database. The corresponding miRNA expression level matrix in extracellular vesicles was downloaded from the BBCancer database. Differentially expressed circRNAs, miRNAs and mRNAs were identified using the limma package of R software at the cut-off criteria of fold change (FC) > 2 and adj. p 0.3 and p 1 and adj. P value 0.3 and p value
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