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G protein-coupled receptor LGR6 is an independent risk factor for colon adenocarcinoma |
Wenjing Wang1, Shigang Ding1(), Hejun Zhang1, Jun Li1, Jun Zhan2(), Hongquan Zhang2() |
1. Department of Gastroenterology, Peking University Third Hospital, Beijing 100191, China 2. Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), and State Key Laboratory of Natural and Biomimetic Drugs, and Department of Anatomy, Histology and Embryology, Peking University Health Science Center, Beijing 100191, China |
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Abstract LGR6 is a member of the G protein-coupled receptor family that plays a tumor-suppressive role in colon cancer. However, the relationship between LGR6 expression in patients and clinicopathological factors remains unclear. This study aimed to clarify whether the expression level of LGR6 is correlated with colon adenocarcinoma progression. Immunohistochemistry was used to detect LGR6 expression in colon adenoma tissues (n = 21), colon adenocarcinoma tissues (n = 156), and adjacent normal tissues (n = 124). The expression levels of LGR6 in colon adenoma and adenocarcinoma were significantly higher than those in normal colon epithelial tissues (P<0.001). Low LGR6 expression predicted a short overall survival in patients with colon adenocarcinoma (log-rank test, P = 0.016). Univariate and multivariate survival analyses showed that, in addition to N and M classification, LGR6 expression served as an independent prognostic factor. Thus, low expression of LGR6 can be used as an independent prognostic parameter in patients with colon adenocarcinoma.
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Keywords
LGR6
colon adenocarcinoma
immunohistochemistry
prognosis
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Corresponding Author(s):
Shigang Ding,Jun Zhan,Hongquan Zhang
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Just Accepted Date: 28 April 2018
Online First Date: 02 July 2018
Issue Date: 02 August 2019
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