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Knockdown of EPHA1 by CRISPR/CAS9 promotes adhesion and motility of HRT18 colorectal carcinoma cells

Wu, Bo, Jiang, Wen Guo, Zhou, D. and Cui, Yuxin 2016. Knockdown of EPHA1 by CRISPR/CAS9 promotes adhesion and motility of HRT18 colorectal carcinoma cells. Anticancer Research 36 (3) , pp. 1211-1220.

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BACKGROUND: Erythropoietin-producing hepatocellular A1 (EPHA1) is the first member of the EPH superfamily. Its abnormal expression has been reported in various cancer types. However, the contribution of EPHA1 to the regulation of colorectal cancer cell behaviour remains unknown. MATERIALS AND METHODS: In this study, we investigated the expression profile of EPHA1 in human colorectal cancer and its effect on the adhesion and motility of colorectal cancer cells. We used human colorectal cancer specimens and the colorectal adenocarcinoma cell line HRT18 for this purpose. RESULTS: Our cohort screening data showed that in patients with colorectal cancer, low expression of EPHA1 gene is correlated with a remarkably reduced survival. After EPHA1 is knocked-down in colorectal cancer cells using a clustered regularly interspaced short palindromic repeats-associated nuclease 9 (CRISPR-CAS9) genomic editing system, we observed an increase in the spreading and adhesion of HRT18 cells. Moreover, protein array data indicated that the extracellular-regulated kinase (ERK) and c-Jun NH2-terminal kinase (JNK) signaling pathways were activated as a consequence. Inhibition of ERK and JNK proteins with specific inhibitors led to suppression of migration of the colorectal cancer cells. CONCLUSION: EPHA1 suppresses spreading and adhesion of HRT18 colorectal cancer cells through deactivation of ERK and JNK signaling pathways.

Item Type: Article
Date Type: Published Online
Status: Published
Schools: Medicine
Subjects: R Medicine > RC Internal medicine > RC0254 Neoplasms. Tumors. Oncology (including Cancer)
Publisher: International Institute of Anticancer Research
ISSN: 0250-7005
Funders: Cardiff China Medical Scholarship and Cancer Research Wales
Date of First Compliant Deposit: 11 April 2016
Date of Acceptance: 14 February 2016
Last Modified: 09 Jan 2018 13:15

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