肝肠钙黏蛋白在胃癌中的表达及其与患者预后的关系

目的 探讨肝肠钙黏蛋白(CDH17)在胃癌中的表达及其与预后的关系.方法 应用组织芯片和免疫组织化学方法检测264例胃癌、正常黏膜及104例转移淋巴结中CDH17的表达.结果 CDH17在胃癌中的表达率高于正常黏膜(63.26%比9.85%,P＜0.001),与临床分期(P＜0.01)、浸润深度(P＜0.01)、淋巴结转移(P＜0.01)和远处转移(P＜0.05)相关.转移淋巴结的CDH17表达率(81.73%)高于原发癌和正常黏膜(P＜0.001).CDH17表达与术后总体生存率和无瘤生存率负相关,CDH17是影响总体生存[风险比(HR)3.97;95%可信区间(CI)1.39～10.28;P＜0.05]和无瘤生存(HR 2.32;95%CI 1.17～4.52;P＜0.05)的独立预后因素.结论 CDH17在胃癌进展中起重要作用,可作为预测术后转移复发的标记物.

Abstract：

Objective To explore the expressiom of liver-intestine (CDH17) in gastric cancer and its correlation with prognosis. Methods CDH17 protein expression was detected by immunohistochemistry on tissue microarray, which containing 264 samples of primary gastric cancer and the corresponding paracancerous tissue,and 104 paired lymph node metastases (LNM). Results CDH17 was up-regulated in gastric cancer compared with paired nomal gastric mucosa and correlated with clinical stage,invasion depth,LNM,distant metastasis. Immnoreactivity of CDH17 was significantly higher in LNM than in primary gastric cancer and normal mucosa. There was a negative correlation between the high expression of CDH17 and overall survival (OS) or disease free survival (DFS) of gastric cancer patients. CDH17 was an independent prognostic factor for OS [hazard ratio ( HR) 3. 97 ; 95% confidence interval ( CI) 1. 39-10. 28; P ＜ 0. 05] and DFS (HR 2. 32 ;95% CI 1.17-4. 52; P ＜ 0. 05). Conclusion CDH17 may play an important role in gastric cancer progression and could serve as a biomarker to identify patients at risk of metastasis or recurrence after gastrectomy.

Expression of liver-intestine cadherin in gastric cancer and its relationship with progonsis

Objective To explore the expressiom of liver-intestine (CDH17) in gastric cancer and its correlation with prognosis. Methods CDH17 protein expression was detected by immunohistochemistry on tissue microarray, which containing 264 samples of primary gastric cancer and the corresponding paracancerous tissue,and 104 paired lymph node metastases (LNM). Results CDH17 was up-regulated in gastric cancer compared with paired nomal gastric mucosa and correlated with clinical stage,invasion depth,LNM,distant metastasis. Immnoreactivity of CDH17 was significantly higher in LNM than in primary gastric cancer and normal mucosa. There was a negative correlation between the high expression of CDH17 and overall survival (OS) or disease free survival (DFS) of gastric cancer patients. CDH17 was an independent prognostic factor for OS [hazard ratio ( HR) 3. 97 ; 95% confidence interval ( CI) 1. 39-10. 28; P ＜ 0. 05] and DFS (HR 2. 32 ;95% CI 1.17-4. 52; P ＜ 0. 05). Conclusion CDH17 may play an important role in gastric cancer progression and could serve as a biomarker to identify patients at risk of metastasis or recurrence after gastrectomy.