N Wang1, W Liu. 1. Department of Gastroenterology, Fourth Hospital of Hebei Medical University, Shijiazhuang, China. ww66167@163.com.
Abstract
OBJECTIVE: MiR-552 has recently been identified to be involved in tumorigenesis of colorectal cancer (CRC). The aim of this study was to determine if miR-552 could serve as a prognosis indicator for patients with CRC. PATIENTS AND METHODS: MiR-552 expression levels were detected in 183 pairs of primary CRC and their matched non-tumor tissues by qPCR. The association between miR-552 expression and clinicopathological parameters was analyzed. The survival curves were calculated by the Kaplan-Meier method. Univariate and multivariate analyses were performed to explore the prognostic significance of miR-552 expression. RESULTS: We found that miR-552 expression was upregulated in CRC tumor tissues compared to their adjacent normal tissues (p < 0.01). Increased miR-552 expression was significantly associated with histological grade (p = 0.000), lymph nodes metastasis (p = 0.022) and TNM stage (p = 0.002). In addition, the patients with high miR-552 expression had a significantly worse 5-year overall survival rate than those with low miR-552 expression (p = 0.0036). Furthermore, according to univariate and multivariate analysis, elevated miR-552 was confirmed to be an independent prognostic factor for worse survival. CONCLUSIONS: The current results demonstrated that high miR-552 expression was associated with poor outcomes in patients with CRC. MiR-552 may be a potential prognostic biomarker and therapeutic target in CRC patients.
OBJECTIVE:MiR-552 has recently been identified to be involved in tumorigenesis of colorectal cancer (CRC). The aim of this study was to determine if miR-552 could serve as a prognosis indicator for patients with CRC. PATIENTS AND METHODS: MiR-552 expression levels were detected in 183 pairs of primary CRC and their matched non-tumor tissues by qPCR. The association between miR-552 expression and clinicopathological parameters was analyzed. The survival curves were calculated by the Kaplan-Meier method. Univariate and multivariate analyses were performed to explore the prognostic significance of miR-552 expression. RESULTS: We found that miR-552 expression was upregulated in CRC tumor tissues compared to their adjacent normal tissues (p < 0.01). Increased miR-552 expression was significantly associated with histological grade (p = 0.000), lymph nodes metastasis (p = 0.022) and TNM stage (p = 0.002). In addition, the patients with high miR-552 expression had a significantly worse 5-year overall survival rate than those with low miR-552 expression (p = 0.0036). Furthermore, according to univariate and multivariate analysis, elevated miR-552 was confirmed to be an independent prognostic factor for worse survival. CONCLUSIONS: The current results demonstrated that high miR-552 expression was associated with poor outcomes in patients with CRC. MiR-552 may be a potential prognostic biomarker and therapeutic target in CRC patients.
Authors: Igor Lopes Dos Santos; Karlla Greick Batista Dias Penna; Megmar Aparecida Dos Santos Carneiro; Larisse Silva Dalla Libera; Jéssica Enocencio Porto Ramos; Vera Aparecida Saddi Journal: Mol Biol Rep Date: 2021-02-17 Impact factor: 2.316