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01-12-2013 | Research Article

Low expression of cyclic amp response element modulator-1 can increase the migration and invasion of esophageal squamous cell carcinoma

Authors: Yuchan Wang, Shuhui Zhou, Xiaojing Yang, Hui Shi, Mei Li, Qun Xue, Xianting Huang, Xinxiu Wang, Huijie Wang, Jianguo Zhang

Published in: Tumor Biology | Issue 6/2013

Abstract

Cyclic AMP response element-binding protein (CREB) family can regulate biological functions of various types of cells and has relation with esophageal cancer cell migration and invasion. Cyclic AMP response element modulator-1 (CREM-1) is one member of the family with limited acquaintance. This study was conducted to investigate the effect of CREM-1 on migration and invasion in human esophageal squamous cell carcinoma (ESCC). The expression of CREM-1 protein in ESCC tissues with or without lymph nodes metastasis was determined by western blot. Immunohistochemical analysis of CREM-1 expression were carried out in paraffin-embedded sections of ESCC and correlated with clinical features. The roles of CREM-1 in migration and invasion were studied in TE1 cells through knocking CREM-1 down with siRNA or overexpression of CREM-1 in ECA109 cells. The regulations of CREM-1 on invasion and migration were determined by transwell and wounding healing assay. The effect of CREM-1 on chemotherapy drug was analyzed by Cell counting kit-8 assay. We found that the expression of CREM-1 was significantly downregulated in ESCC tissues with lymph nodes metastasis compared with the tissues without lymph nodes metastasis and was correlated with the clinical features of pathological grade, tumor stage and lymph node metastasis. Moreover, knocking CREM-1 down with siRNA increased cell migration and invasion in human ESCC cell lines TE1 while upregulation of CREM-1 inhibited the motility. Our data suggested that CREM-1 might play an important role in the regulation of tumor metastasis and invasion and serve as a tumor suppressor in human ESCC. We proposed that CREM-1 might be used as a potential therapeutic agent for human ESCC.

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Title: Low expression of cyclic amp response element modulator-1 can increase the migration and invasion of esophageal squamous cell carcinoma
Authors: Yuchan Wang
Shuhui Zhou
Xiaojing Yang
Hui Shi
Mei Li
Qun Xue
Xianting Huang
Xinxiu Wang
Huijie Wang
Jianguo Zhang
Publication date: 01-12-2013
Publisher: Springer Netherlands
Published in: Tumor Biology / Issue 6/2013
Print ISSN: 1010-4283
Electronic ISSN: 1423-0380
DOI: https://doi.org/10.1007/s13277-013-0946-1

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