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  • Title: High expression of GPR116 indicates poor survival outcome and promotes tumor progression in colorectal carcinoma.
    Author: Yang L, Lin XL, Liang W, Fu SW, Lin WF, Tian XQ, Gao YJ, Chen HY, Dai J, Ge ZZ.
    Journal: Oncotarget; 2017 Jul 18; 8(29):47943-47956. PubMed ID: 28624786.
    Abstract:
    Previous studies have found that G-protein-coupled receptor 116 (GPR116) is a regulator of breast cancer metastasis. However, the role of GPR116 in colorectal carcinoma (CRC) carcinogenesis and progression is unknown. In this study, We found GPR116 expression was significantly up-regulated in CRC specimens compared with corresponding non-cancerous tissues. Increased GPR116 expression in CRC was correlated with histological differentiation and distant metastasis. In addition, high expression of GPR116 was significantly associated with poor overall survival of CRC patients, which was also confirmed by GSE14333, GSE17536 and GSE33113 datasets from the Gene Expression Omnibus (GEO). Furthermore, we demonstrated that the ability of proliferation and invasion of CRC cell lines HCT116 and LOVO was markedly reduced after transfected with siRNA-GPR116. Meanwhile, GPR116 may drive EMT in CRC cells through AKT/EKR signaling pathway, resulting in metastasis. Thus, GPR116 may be a novel reliable prognostic indicator and a risk factor in CRC progression.
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