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Upregulation of AKIP1 contributes to metastasis and progression and predicts poor prognosis of patients with colorectal cancer

Authors Jiang W, Yang W, Yuan L, Liu F

Received 18 September 2017

Accepted for publication 9 July 2018

Published 11 October 2018 Volume 2018:11 Pages 6795—6801


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 4

Editor who approved publication: Prof. Dr. Geoffrey Pietersz

Weifang Jiang,1,* Weiji Yang,2,* Li Yuan,3 Fanlong Liu3

1Department of Surgery, The Hospital of Zhejiang University, Hangzhou 310016, China; 2Graduate Student Department, Zhejiang Chinese Medical University, Hangzhou 310053, China; 3Department of Anorectal Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China

*These authors contributed equally to this work

Background: A kinase-interacting protein 1 (AKIP1) has been reported to play an important role in the development and progression of cancer. However, the clinicopathological and biological roles of AKIP1 in colorectal cancer (CRC) remain largely unknown. The aim of this study was to investigate AKIP1 protein expression in CRC and determine the correlation between AKIP1 protein expression and clinicopathological features, as well as prognosis in CRC patients.
Materials and methods: AKIP1 protein expression was determined by immunohistochemical analysis using tissue microarrays of CRC. We also used an siRNA approach to knock down AKIP1 expression and determine the effect of AKIP1 on CRC cell migration by transwell analysis.
Results: AKIP1 expression in CRC tissue was significantly higher compared with that of noncancerous colorectal mucosa (P<0.001). Further analysis showed that AKIP1 expression was significantly associated with tumor diameter, TNM stage, and lymph node metastasis (P<0.05). Kaplan–Meier survival analysis demonstrated that patients with a positive AKIP1 expression had significantly poorer overall survival rates when compared with those with negative AKIP1 expression (P=0.031). Multivariate analysis using the Cox proportional hazard model, however, revealed that AKIP1 expression was not a significant independent prognostic factor for CRC. Transwell assay showed that the migration potential of si-AKIP1-transfected cells was significantly reduced when compared with control cells.
Conclusion: Elevated AKIP1 expression may contribute to metastasis and progression of CRC. Moreover, high AKIP1 expression in CRC significantly correlated with a patient’s shorter survival time. Therefore, AKIP1 may be a useful prognostic marker for CRC and a promising novel target for the treatment of CRC.

Keywords: AKIP1, colorectal cancer, metastasis, prognosis

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