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Upregulation of NETO2 expression correlates with tumor progression and poor prognosis in colorectal carcinoma
BACKGROUND: Neuropilin and tolloid-like 2 (NETO2) has been found to be overexpressed in different human cancers, but its expression pattern and clinical relevance in colorectal carcinoma (CRC) remains unknown. METHODS: Real-time quantitative PCR, western blot and immunohistochemistry analyses were u...
Autores principales: | , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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BioMed Central
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4690429/ https://www.ncbi.nlm.nih.gov/pubmed/26699544 http://dx.doi.org/10.1186/s12885-015-2018-y |
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author | Hu, Liang Chen, Hai-Yang Cai, Jian Yang, Guang-Zhen Feng, Dan Zhai, Yan-Xia Gong, Hui Qi, Chen-Ye Zhang, Yu Fu, Hao Cai, Qing-Ping Gao, Chun-Fang |
author_facet | Hu, Liang Chen, Hai-Yang Cai, Jian Yang, Guang-Zhen Feng, Dan Zhai, Yan-Xia Gong, Hui Qi, Chen-Ye Zhang, Yu Fu, Hao Cai, Qing-Ping Gao, Chun-Fang |
author_sort | Hu, Liang |
collection | PubMed |
description | BACKGROUND: Neuropilin and tolloid-like 2 (NETO2) has been found to be overexpressed in different human cancers, but its expression pattern and clinical relevance in colorectal carcinoma (CRC) remains unknown. METHODS: Real-time quantitative PCR, western blot and immunohistochemistry analyses were used to analyze the expression of NETO2 in CRC clinical samples. The correlation of NETO2 expression with clinicopathologic features was estimated in a cohort containing 292 patients with primary CRC. Kaplan-Meier and Cox proportional hazards regression analyses were used to assess the prognostic value of NETO2 expression in CRC. RESULTS: The expression of NETO2 was frequently upregulated in CRC clinical samples at both the mRNA and protein levels, and its upregulation was significantly correlated with poor tumor differentiation (p = 0.013), advanced local invasion (p = 0.049), increased lymph node metastasis (p = 0.009), advanced TNM stage (p = 0.041) and increased patient death (p = 0.001). Kaplan-Meier analysis of the complete study cohort revealed that patients with high-NETO2 tumors had a significantly shorter disease-specific survival (DSS) than those with low-NETO2 tumors (p < 0.001). Importantly, high levels of NETO2 protein predicted poor DSS for patients with early stage tumors (p = 0.027) and for those with advanced stage tumors (p = 0.020). Furthermore, multivariate analyses indicated that increased NETO2 expression was an independent unfavorable prognostic factor for patients with early stage tumors (hazard ratio [HR] = 1.937, 95 % CI = 1.107-3.390, p = 0.021) as well as patients with advanced stage tumors (HR = 2.241, 95 % CI = 1.245-4.035, p = 0.007). CONCLUSIONS: Our findings suggest that NETO2 upregulation could serve as a potential biomarker for the prediction of advanced tumor progression and unfavorable prognosis in patients with CRC. |
format | Online Article Text |
id | pubmed-4690429 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-46904292015-12-25 Upregulation of NETO2 expression correlates with tumor progression and poor prognosis in colorectal carcinoma Hu, Liang Chen, Hai-Yang Cai, Jian Yang, Guang-Zhen Feng, Dan Zhai, Yan-Xia Gong, Hui Qi, Chen-Ye Zhang, Yu Fu, Hao Cai, Qing-Ping Gao, Chun-Fang BMC Cancer Research Article BACKGROUND: Neuropilin and tolloid-like 2 (NETO2) has been found to be overexpressed in different human cancers, but its expression pattern and clinical relevance in colorectal carcinoma (CRC) remains unknown. METHODS: Real-time quantitative PCR, western blot and immunohistochemistry analyses were used to analyze the expression of NETO2 in CRC clinical samples. The correlation of NETO2 expression with clinicopathologic features was estimated in a cohort containing 292 patients with primary CRC. Kaplan-Meier and Cox proportional hazards regression analyses were used to assess the prognostic value of NETO2 expression in CRC. RESULTS: The expression of NETO2 was frequently upregulated in CRC clinical samples at both the mRNA and protein levels, and its upregulation was significantly correlated with poor tumor differentiation (p = 0.013), advanced local invasion (p = 0.049), increased lymph node metastasis (p = 0.009), advanced TNM stage (p = 0.041) and increased patient death (p = 0.001). Kaplan-Meier analysis of the complete study cohort revealed that patients with high-NETO2 tumors had a significantly shorter disease-specific survival (DSS) than those with low-NETO2 tumors (p < 0.001). Importantly, high levels of NETO2 protein predicted poor DSS for patients with early stage tumors (p = 0.027) and for those with advanced stage tumors (p = 0.020). Furthermore, multivariate analyses indicated that increased NETO2 expression was an independent unfavorable prognostic factor for patients with early stage tumors (hazard ratio [HR] = 1.937, 95 % CI = 1.107-3.390, p = 0.021) as well as patients with advanced stage tumors (HR = 2.241, 95 % CI = 1.245-4.035, p = 0.007). CONCLUSIONS: Our findings suggest that NETO2 upregulation could serve as a potential biomarker for the prediction of advanced tumor progression and unfavorable prognosis in patients with CRC. BioMed Central 2015-12-23 /pmc/articles/PMC4690429/ /pubmed/26699544 http://dx.doi.org/10.1186/s12885-015-2018-y Text en © Hu et al. 2015 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated. |
spellingShingle | Research Article Hu, Liang Chen, Hai-Yang Cai, Jian Yang, Guang-Zhen Feng, Dan Zhai, Yan-Xia Gong, Hui Qi, Chen-Ye Zhang, Yu Fu, Hao Cai, Qing-Ping Gao, Chun-Fang Upregulation of NETO2 expression correlates with tumor progression and poor prognosis in colorectal carcinoma |
title | Upregulation of NETO2 expression correlates with tumor progression and poor prognosis in colorectal carcinoma |
title_full | Upregulation of NETO2 expression correlates with tumor progression and poor prognosis in colorectal carcinoma |
title_fullStr | Upregulation of NETO2 expression correlates with tumor progression and poor prognosis in colorectal carcinoma |
title_full_unstemmed | Upregulation of NETO2 expression correlates with tumor progression and poor prognosis in colorectal carcinoma |
title_short | Upregulation of NETO2 expression correlates with tumor progression and poor prognosis in colorectal carcinoma |
title_sort | upregulation of neto2 expression correlates with tumor progression and poor prognosis in colorectal carcinoma |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4690429/ https://www.ncbi.nlm.nih.gov/pubmed/26699544 http://dx.doi.org/10.1186/s12885-015-2018-y |
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