摘要目的 检测PI3K、AKT、MRP蛋白在胰腺癌组织中的表达,探讨它们的临床病理学意义及三者之间的相关性.方法 采用免疫组织化学法检测43例胰腺癌组织、9例CP组织和8例正常胰腺组织中PI3K、AKT、MRP蛋白的表达.结果 PI3K、AKT、MRP在胰腺癌组织中的阳性表达率分别为46.51%、55.81%和39.53%,均高于CP和正常胰腺组织中的表达(P<0.01和P<0.05).PI3K、AKT蛋白表达与胰腺癌的淋巴结转移和TNM分期相关(P<0.05).胰腺癌组织中MRP与PBK均异常表达者为32.56%,均正常表达者为46.51%,两者呈显著正相关(r=0.581,P<0.01);MRP与AKT均异常表达者为32.56%,均正常表达者为37.21%,两者呈显著正相关(r=0.432,P<0.05);PI3K与AKT均异常表达者为37.21%,均正常表达者32.56%,两者呈显著正相关(r=0.306,P<0.05).结论 胰腺癌组织PI3K、AKT和MRP蛋白表达上调,三者呈正相关.P13K和AKT的表达与淋巴结转移及TNM分期有关.

abstractsObjective To investigate the expressions of PI3K, AKT and MRP protein in pancreatic carcinoma and to determine the clinicopathological significance and the correlation among three protein expressions. Methods The immunohistochemical method was used to detect the expressions of PI3K, AKT and MRP in forty three pancreatic carcinoma, nine chronic pancreatitis and eight normal pancreatic tissue samples. Results The positive expression rates of PI3K, AKT and MRP were 46.51%, 55.81% and 39.53%, respectively in pancreatic carcinoma, which were remarkably higher than those in normal pancreatic tissue and in chronic pancreatitis (P<0.01 and P<0.05, respectively). The aberrant expression of PI3K, AKT and MRP were associated with lymph node metastasis and TNM stages (P<0.05). The abnormal expression rate in both MRP and PI3K was 32.56%, the normal expression rate of both MRP and PI3K was 46.51%, and there was positive correlation between the expression of MRP and PI3K(r=0.581, P<0.01). The abnormal expression rate of both MRP and AKT was 32.56%, the normal expression rate was 37.21%, and there was a positive correlation between MRP and PI3K (r=0.432,P<0.05). The abnormal expression rate of both MRP and PI3K was 37.21%, the normal expression rate of both MRP and PI3K was 32.56%, there was also a positive correlation between MRP and PI3K (r=0.306,P<0.05). Conclusions The expressions of PI3K, AKT and MRP were up-regulated in pancreatic carcinoma. The expressions of PI3K and AKT may be related to the lymph node metastasis and TNM staging.