Oncotarget

Research Papers:

Overexpressed LAPTM4B-35 is a risk factor for cancer recurrence and poor prognosis in non-small-cell lung cancer

Fanming Kong, Fangfang Gao, Jun Chen, Yiyu Sun, Ying Zhang, Honggen Liu, Xiaojiang Li, PeiYing Yang, Rongxiu Zheng, Geli Liu and Yingjie Jia _

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Oncotarget. 2016; 7:56193-56199. https://doi.org/10.18632/oncotarget.10907

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Abstract

Fanming Kong1, Fangfang Gao2, Jun Chen1, Yiyu Sun1, Ying Zhang1, Honggen Liu1, Xiaojiang Li1, PeiYing Yang1, Rongxiu Zheng2, Geli Liu2 and Yingjie Jia1

1 Department of Oncology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China

2 Department of Pediatrics, Tianjin Medical University General Hospital, Tianjin, China

Correspondence to:

Yingjie Jia, email:

Keywords: lung cancer, non-small-cell lung cancer, LAPTM4B-35, cancer recurrence, prognosis

Received: April 16, 2016 Accepted: June 13, 2016 Published: July 28, 2016

Abstract

Background: The expression levels and clinical significances of Lysosomal-associated protein transmembrane-4β-35 (LAPTM4B-35) protein are unknown in the non-small-cell lung cancer (NSCLC). This study aimed to explore the expression and prognostic value of LAPTM4B-35 in NSCLC patients. Methods: The clinicopathological and survival data of 107 NSCLC patients who received radical surgery from 2007 and 2011 were reviewed. The LAPTM4B-35 expression of the paired tumors and adjacent normal specimens were detected, and the association between LAPTM4B-35 and clinical variables was explored. Kaplan-Meier analysis and Cox regression (Proportional hazard model) were performed to investigate the prognostic significance for NSCLC. Results: LAPTM4B-35 was over expressed in NSCLC tissues. The elevated LAPTM4B-35 expression was associated with cancer recurrence (P = 0.031). The 5-year median OS and PFS were significantly worse in the LAPTM4B-35 overexpressed group. Multivariate Cox analysis showed that LAPTM4B-35 over-expression was an independent factor for OS and PFS in NSCLC(P = 0.018, P = 0.026, respectively). Conclusions: The overexpressed LAPTM4B-35 was an independent prognostic biomarker for NSCLC, which could predict cancer recurrence and poor over survival. And that may be applied as potential target for NSCLC treatment.


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