Notch‑regulated ankyrin‑repeat protein is a novel tissue biomarker that predicts poor prognosis in non‑small cell lung cancer

Liao,Yufeng; Chen,Junfeng; Ma,Jianbo; Mao,Qifeng; Wei,Renxiong; Zheng,Jianjun

doi:10.3892/ol.2018.8826

Notch‑regulated ankyrin‑repeat protein is a novel tissue biomarker that predicts poor prognosis in non‑small cell lung cancer

Authors:
- Yufeng Liao
- Junfeng Chen
- Jianbo Ma
- Qifeng Mao
- Renxiong Wei
- Jianjun Zheng
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Affiliations: Department of Laboratory Medicine, Ningbo No. 2 Hospital, Ningbo, Zhejiang 315010, P.R. China, Department of Clinical Medicine, Ningbo Municipal Hospital of Traditional Chinese Medicine, Ningbo, Zhejiang 315010, P.R. China, Department of Radiology, Ningbo No. 2 Hospital, Ningbo, Zhejiang 315010, P.R. China
Published online on: May 30, 2018 https://doi.org/10.3892/ol.2018.8826
Pages: 1885-1891

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Abstract

Notch‑regulated ankyrin‑repeat protein (NRARP) has recently been reported to be involved in a number of malignant cancers; however, its role in non‑small lung cancer (NSCLC) remains unclear. The present study aimed to identify whether NRARP could be applied as a novel prognostic marker for NSCLC. A total of 108 NSCLC patients were enrolled in the present study and their lung tissues were collected. Reverse‑transcription quantitative polymerase chain reaction and immunohistochemical staining were used to assess the mRNA and protein levels of NRARP. Appropriate statistical tests were performed to evaluate the associations between NRARP protein expression and clinicopathological features and prognosis in NSCLC patients. The results revealed that NRARP expression was significantly associated with tumor differentiation (P=0.001), Tumor‑Node‑Metastasis stage (P=0.004) and cigarette smoking (P<0.001). Furthermore, patients with higher NRARP protein expression had significantly shorter overall survival times (P<0.001). Multivariate analysis indicated that overexpression of NRARP protein could be applied as an independent prognostic biomarker for NSCLC. In summary, the present study demonstrated that NRARP protein is overexpressed in NSCLC and that high NRARP expression is correlated with tumor progression and overall survival time. These data indicated the potential value of NRARP as a novel therapeutic target for the treatment of NSCLC.

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