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Expression of stromal cell-derived factor 1 and CXCR7 ligand receptor system in pancreatic adenocarcinoma
- 作者:Zhen Liu (2) r> Xu-Yong Teng (2) r> Xiang-Peng Meng (2) r> Bao-Sheng Wang (2) r>r>2. Department of General Surgery ; Shengjing Hospital ; China Medical University ; No. 36 Sanhao Street ; Shenyang ; 110004 ; China r>
- 关键词:chemokine ; chemokine receptors ; CXCR7 ; pancreatic neoplasms ; SDF ; 1
- 刊名:World Journal of Surgical Oncology
- 出版年:2014
- 出版时间:December 2014
- 年:2014
- 卷:12
- 期:1
- 全文大小:653 KB
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- 刊物主题:Surgical Oncology;
- 出版者:BioMed Central
- ISSN:1477-7819
文摘
Background Stromal cell-derived factor 1 (SDF-1) is a chemokine that is expressed in some cancer cells and is involved in tumor cell migration and metastasis. CXCR7, a novel receptor for SDF-1, has been identified recently. Research has demonstrated that SDF-1/CXCR7 interaction could play an important role in cancer progression. In this study, we aimed to investigate the expression of the SDF-1/CXCR7 ligand receptor system and the relationship between this expressions and clinicopathological characteristics in pancreatic adenocarcinoma. Methods Expressions of SDF-1 and CXCR7 in 64 cases of pancreatic adenocarcinoma tissue and 24 cases of normal pancreatic tissue were detected immunohistochemically. Results Expressions of SDF-1 and CXCR7 were negative in normal pancreatic tissues. Respectively, positive expression rates of SDF-1 and CXCR7 in pancreatic adenocarcinoma were 45.3% and 51.6%. The expression of SDF-1 correlated with histological grades; the expression rate in moderate to low differentiation was higher than in high differentiation (P P SDF-1+/CXCR7+ correlated with poor prognosis (P Conclusions The SDF-1/CXCR7 receptor ligand system may take part in invasive progression and metastasis of pancreatic adenocarcinoma, and might be useful as an index for evaluating invasiveness and prognosis.
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