Oncotarget

Research Papers:

Metastasis-associated protein 3 in colorectal cancer determines tumor recurrence and prognosis

Yi Huang, Yunlong Li, Fenfei He, Shiqi Wang, Yaohui Li, Gang Ji, Xiaonan Liu, Qingchuan Zhao and Jipeng Li _

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Oncotarget. 2017; 8:37164-37171. https://doi.org/10.18632/oncotarget.16332

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Abstract

Yi Huang2,*, Yunlong Li1,*, Fenfei He1,*, Shiqi Wang1, Yaohui Li1, Gang Ji1, Xiaonan Liu1, Qingchuan Zhao1, Jipeng Li1

1State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi’an, China

2Department of Anesthesiology, Xijing Hospital, Fourth Military Medical University. Xi’an, China

*These authors contributed equally to this work

Correspondence to:

Jipeng Li, email: [email protected]

Qingchuan Zhao, email: [email protected]

Keywords: MTA3, colorectal cancer, immunohistochemistry, recurrence, prognosis

Received: June 11, 2016     Accepted: February 14, 2017     Published: March 17, 2017

ABSTRACT

Metastasis-associated protein family (MTA) promotes tumor cell invasion and metastasis of human malignancies. However, the novel component of MTA family, MTA3 was found to play conflicting roles in human malignancies. While the expression pattern and potential function of MTA3 in colorectal cancer has not been addressed yet. In the present study, we investigated the protein expression of MTA3 by immunohistochemistry assay, analyzed its association with tumor progression, recurrence and prognosis in239 cases of patients. Results showed that MTA3 expression in colorectal cancer was significantly decreased in colorectal cancer compared with normal specimens. Its expression was found to be correlated with tumor differentiation, metastases and TNM stage. Kaplan–Meier analysis proved that MTA3 was associated with both disease-free survival and overall survival of patients with colorectal cancer that patients with negative MTA3 expression tend to have unfavorable outcome. Moreover, cox’s proportional hazards analysis showed that negative MTA3 expression was an independent prognostic marker of poor outcome. These results provided the first evidence that MTA3 level was decreased in colorectal cancer and significantly correlated with tumor cell invasion and metastasis. It also demonstrated that MTA3 might serve as a potential marker of tumor recurrence and prognosis of colorectal cancer.


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