Diagnostic Value of miR-142-5p and Tiam-1 in Colon Cancer Patients.
2019
BACKGROUND: The current study aims to detect the expression of miR-142-5p and T-cell lymphoma invasion and metastasis 1 (Tiam1) in colon cancer tissues and adjacent normal tissues, thereby exploring their association with clinical stage and lymph node metastasis of colon cancer. METHODS: Thirty specimens of colon cancer tissues and adjacent tissues were collected. The expressions of miR-142-5p and Tiam1 were detected by RT-PCR. The correlation between them and clinical pathology was analyzed using person correlation assay. RESULTS: The expression of miR-142-5p in colon cancer tissues (0.46 +/- 0.25) was lower than that in adjacent tissues (1.00 +/- 0.23), and the difference was statistically significant. The expression of Tiam1 gene in colon cancer tissues (5.46 +/- 2.34) was higher than that in adjacent tissues (1.00 +/- 0.43). There was a significant negative correlation between miR-142-5p and Tiam1 (r = -0.873, p < 0.01). The expression level of miR-142-5p (0.22 +/- 0.07) in stage III and IV colon cancer tissues was significantly lower than that in stage I and II colon cancer tissues (0.71 +/- 0.21, p < 0.05), while the expression level of Tiam1 mRNA (6.37 +/- 1.98) in stage III and IV colon cancer tissues was significantly higher than that in stage I and II colon cancer tissues (2.86 +/- 1.32, p < 0.05). Furthermore, the expression of miR-142-5p in colon cancer with lymph node metastasis was significantly lower than that in colon cancer without lymph node metastasis, while the expression of Tiam1 was contrary to that in colon cancer without lymph node metastasis. CONCLUSIONS: In summary, miR-142-5p and Tiam-1 may be potential diagnostic markers for colon cancer.
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