畸胎瘤衍生生长因子1在胰腺癌中的表达及其预后价值

Expression and Prognostic Value of Cripto-1 in Pancreatic Cancer

目的研究畸胎瘤衍生生长因子1(Cripto-1)在胰腺癌中的表达情况,明确Cripto-1表达水平的临床意义。方法以免疫组织化学染色的方法检测正常胰腺组织、胰腺癌及相应癌旁组织、慢性胰腺炎等相关组织中Cripto-1的表达水平,探讨胰腺癌组织中Cripto-1表达水平与临床病理参数之间的关系及预后价值。结果Cripto-1在慢性胰腺炎、胰腺癌组织及其转移灶中的表达水平显著高于正常胰腺组织(P=0.019,P=0.025,P=0.018)。Cripto-1在低分化胰腺癌组织中高表达。Cripto-1高表达的胰腺癌患者生存期短于Cripto-1低表达的患者(8个月比16个月,χ^(2)=4.787,P=0.029),但多因素分析提示Cripto-1表达水平与胰腺癌患者预后无相关性(HR=1.341,95%CI=0.800~2.248,P=0.266)。结论Cripto-1可能在胰腺癌的早期发生和发展过程中发挥重要作用,Cripto-1表达水平可能对胰腺癌患者预后有一定指导意义。

Objective To investigate the expression of Cripto-1 in pancreatic cancer and to analyze its clinical significance.Methods Cripto-1 expression in normal pancreas,pancreatic cancer and adjacent non-tumor tissues,chronic pancreatitis tissues and other related tissues was evaluated using immunohistochemistry.The association of Cripto-1 expression with the clinicopathological characteristics and the prognostic value of Cripto-1 in patients with pancreatic cancer were analyzed.Results The expression of Cripto-1 was higher in chronic pancreatitis tissues,pancreatic cancer and its metastases than in normal pancreas(P=0.019,P=0.025,and P=0.018,respectively).Cripto-1 overexpression was correlated with poorly differentiated pancreatic cancer.The patients with Cripto-1 upregulation had shorter median survival time(8 months vs.16 months,χ^(2)=4.787,P=0.029).However,multivariate analysis failed to demonstrate overexpression of Cripto-1 an independent prognostic indicator in patients with pancreatic cancer(HR=1.341,95%CI=0.800-2.248,P=0.266).Conclusions Cripto-1 may play an important role in the development and progression of pancreatic cancer.It can be a potential prognostic biomarker for patients with pancreatic cancer.