Musashi-2 is a prognostic marker for the survival of patients with cervical cancer

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Abstract

Cervical cancer is one of the most common gynecological malignancies. Mousasi 2 (Msi2) is a RNA-binding protein that regulates various key cellular functions and has emerged as a crucial regulator of cancer development. However, the clinical significance and biological functions of Msi2 in cervical cancer remain unknown. The current study assessed the expression of Msi2 mRNA using reverse transcription-quantitative polymerase chain reaction. Furthermore, the expression of Msi2 was examined in 162 cervical cancer samples using immunohistochemistry and the association between Msi2 expression and patient clinicopathological features was analyzed. The overall survival (OS) and progression-free survival (PFS) of patients were estimated using the Kaplan-Meier method and Cox regression analysis was performed to investigate the clinicopathological significance of Msi2 expression. In vitro migration and invasion assays were performed in Sinha and Caskie cells. The results demonstrated that, compared with normal cervical tissues, the expression of Msi2 was increased in cervical cancer tissues. The expression of Msi2 was significantly correlated with International Federation of Gynaecology and Obstetrics (FIGO) stage (P=0.049) and lymph node metastasis (P=0.036). Furthermore, patients with higher Msi2 expression exhibited significantly poorer OS (P=0.013) and PFS (P=0.006) than patients with low Msi2 expression. Notably, high Msi2 expression was correlated with poorer OS in patients with a FIGO stage ≤I (P=0.015), a smaller tumor size (P=0.043) and grade 3 tumor (P=0.002). High Msi2 expression was also correlated with a poorer PFS in patients with a FIGO stage ≤I (P=0.016) and grade 3 tumor (P=0.001). Multivariate analysis suggested that Msi2 expression was an independent prognostic marker of the OS (P=0.027) and PFS (P=0.013) of patients with cervical cancer. Furthermore, Msi2 knockdown significantly (P<0.05) inhibited the invasion and migration of cervical cancer cells. The results of the current study demonstrate that Msi2 may act as a prognostic biomarker in patients with cervical cancer. Targeting Msi2 may therefore offer a promising therapeutic strategy for the treatment of patients with cervical cancer.

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APA

Liu, Y., Fan, Y., Wang, X., Huang, Z., Shi, K., & Zhou, B. (2018). Musashi-2 is a prognostic marker for the survival of patients with cervical cancer. Oncology Letters, 15(4), 5425–5432. https://doi.org/10.3892/ol.2018.8077

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