期刊
BMC CANCER
卷 16, 期 -, 页码 -出版社
BIOMED CENTRAL LTD
DOI: 10.1186/s12885-016-2815-y
关键词
Apelin; Prognosis; Gastric cancer
类别
资金
- National Natural Science Funds of China [81302058]
- Harbin applied technology research and development projects [2015RAXYJ059]
- Haiyan Research Fund of The Affiliated Tumor Hospital of Harbin Medical University [JJZD2016-02]
Background: To study the association between Apelin expression and the clinical features and postoperative prognosis in patients with gastric cancer (Int J Cancer 136: 2388-2401, 2015). Methods: Tumor samples and matched adjacent normal tissues were collected from 270 patients with GC receiving surgical resection. The tumor and serum Apelin levels were determined by immunohistochemistry and ELISA methods, respectively. GC cell lines were cultured for migration and invasive assays. Results: Our data showed that tumor Apelin expression status, instead of serum Apelin level, was closely associated with more advance clinical features including tumor differentiation, lymph node and distant metastases. Moreover, patients with high tumor Apelin level had a significantly shorter overall survival period compared to those with low Apelin expression and those with or negative Apelin staining. Our in vitro study revealed that the Apelin regulated the migration and invasion abilities of GC cell lines, accompanied by up-regulations of a variety of cytokines associated with tumor invasiveness. Conclusion: Our data suggest that tumor Apelin can be used as a marker to evaluate clinical characteristics and predict prognosis in GC patients.
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