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  • Title: [Study on miR-490-5p and miR-363 as novel biomarkers for the diagnosis of colorectal cancer].
    Author: Xu X, Wu X, Wu S, Jiang Q, Liu H, Chen R, Sun Y.
    Journal: Zhonghua Wei Chang Wai Ke Za Zhi; 2014 Jan; 17(1):45-50. PubMed ID: 24519049.
    Abstract:
    OBJECTIVE: To identify dysregulated microRNA(miRNA) that can act as novel biomarker for colorectal cancer screening. METHODS: Real time-polymerase chain reaction was used to detect the expression profile of miRNA in tumor and paired normal tissues, and the significant dysregulated miRNA was examined by non-paired t-test. Receiver operating characteristic(ROC) curve was performed to evaluate the specificity and sensitivity of miR-363 and miR-490-5p as biomarkers to discriminate colorectal cancer patients from normal person. RESULTS: Seven-three dysregulated miRNAs were found in male samples, of which 6 miRNAs were up-regulated and other 67 miRNAs were down-regulated, while 42 dysregulated miRNAs were found in female samples, of which 5 were up-regulated and 37 were down-regulated in tumor tissues compared with normal tissues. Among above dysregulated miRNAs, 33 miRNAs had significant differences, besides, dysregulated expression level of 10 of 33 miRNAs was over 5 folds in male and female as well as mixed samples. CONCLUSIONS: The expression pattern in female is different from that in male. miR-363 and miR-490-5p possess the potential in screening colorectal cancer patients from healthy people.
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