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01-12-2017 | Original Article

HCRP1 downregulation confers poor prognosis and induces chemoresistance through regulation of EGFR-AKT pathway in human gastric cancer

Authors: Hao Xu, Zhi-Feng Miao, Zhen-Ning Wang, Ting-Ting Zhao, Ying-Ying Xu, Yong-Xi Song, Jin-Yu Huang, Jun-Yan Zhang, Xing-Yu Liu, Jian-Hua Wu, Hui-Mian Xu

Published in: Virchows Archiv | Issue 6/2017

Abstract

The current study aims to investigate the biological roles and clinical significance of HCRP1 in human gastric cancer. The expression pattern of HCRP1 in gastric cancer tissue and adjacent non-cancerous tissue was detected by immunohistochemistry. HCRP1 downregulation was found in 57 of 137 human gastric cancer samples and correlated with advanced TNM stage, positive nodal status, and relapse. Log-rank test showed that HCRP1 downregulation also correlated with poor overall survival and reduced relapse-free survival. In addition, we found that HCRP1 overexpression inhibited proliferation, colony formation, and invasion in HGC-27 cells. On the other hand, HCRP1 depletion by small interfering RNA promoted proliferation, colony formation, and invasion in SGC-7901 cells. We also treated gastric cancer cells with cisplatin. MTT and Annexin V/PI analysis were carried out to examine change of chemoresistance. We found that HCRP1 overexpression sensitized HGC-27 cells to cisplatin while its depletion reduced sensitivity in SGC-7901 cells. Moreover, we found that HCRP1 overexpression negatively regulated cyclin D1, MMP-2, p-EGFR, p-ERK, and p-AKT. HCRP1 depletion showed the opposite effects. In conclusion, our results suggest that HCRP1 downregulation might serve as an indicator for poor prognosis in gastric cancer patients. HCRP1 reduces drug resistance through regulation of EGFR-AKT signaling.

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Title: HCRP1 downregulation confers poor prognosis and induces chemoresistance through regulation of EGFR-AKT pathway in human gastric cancer
Authors: Hao Xu
Zhi-Feng Miao
Zhen-Ning Wang
Ting-Ting Zhao
Ying-Ying Xu
Yong-Xi Song
Jin-Yu Huang
Jun-Yan Zhang
Xing-Yu Liu
Jian-Hua Wu
Hui-Mian Xu
Publication date: 01-12-2017
Publisher: Springer Berlin Heidelberg
Published in: Virchows Archiv / Issue 6/2017
Print ISSN: 0945-6317
Electronic ISSN: 1432-2307
DOI: https://doi.org/10.1007/s00428-017-2237-5

At a glance: The STEP trials

Springer Medicine

HCRP1 downregulation confers poor prognosis and induces chemoresistance through regulation of EGFR-AKT pathway in human gastric cancer

Abstract

At a glance: The STEP trials

Springer Medicine

Abstract

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