Abstract
Purpose
To explore the regulatory relationship between Chloride intracellular channel 1 (CLIC1) and Angiomotin (AMOT)-p130, and reveal the role of AMOT-p130 in gastric cancer (GC).
Methods
Immunohistochemistry was performed to analyze the expression of CLIC1 and AMOT-p130 in GC tissues and adjacent tissues. The expression of AMOT-p130 upon CLIC1 silencing was analyzed using RT-PCR, western blot, and immunofluorescence in GC cells. Transwell and wound-healing assays were performed to detect migration and invasion in GC cells. The changes in EMT-related proteins were detected using western blot.
Results
Our study found that high CLIC1 expression was significantly associated with low AMOT-p130 expression in GC tissues. Silencing CLIC1 expression in MGC-803 cells (MGC-803 CLIC1 KO) and AGS cells (AGS CLIC1 KO) decreased the invasive and migratory abilities of tumor cells, which were induced by the upregulation of AMOT-p130. Subsequently, we demonstrated that AMOT-p130 inhibits the invasive and migratory abilities of GC cells by inhibiting epithelial–mesenchymal transition.
Conclusions
Our study suggests that AMOT-p130 could inhibit epithelial–mesenchymal transition in GC cells. CLIC1 may participate in the metastatic progression of GC by downregulating the expression of AMOT-p130.
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Change history
16 September 2020
A Correction to this paper has been published: https://doi.org/10.1007/s12094-020-02495-4
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Acknowledgements
The study was supported by the Guangxi Medical and Health Fund-funded Project (No. Z2015526); the Science Foundation for Young Scientists of Guangxi Medical University (No. GXMUYSF201502); the Natural Science Foundation of Guangxi (No. 2016GXNSFAA380180); the Guangxi Medical University College Students Innovation and Entrepreneurship Training Program Project 2019 (No. 201910598091); the National Natural Science Foundation of China (No. 81360370); the Guangxi Scientific Research and Technology Development Project (No. AB18126058) and the Education Department Foundation for Innovation Team of Guangxi Zhuang Autonomous Region.
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Qiu, Y., Mao, Yt., Zhu, Jh. et al. CLIC1 knockout inhibits invasion and migration of gastric cancer by upregulating AMOT-p130 expression. Clin Transl Oncol 23, 514–525 (2021). https://doi.org/10.1007/s12094-020-02445-0
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DOI: https://doi.org/10.1007/s12094-020-02445-0