[关键词]
[摘要]
目的: 探讨胰腺癌细胞Wnt 通路中核心分子β-catenin 的mRNA 表达水平与其化疗耐药的相关性。
方法: 使用Real-time PCR及Taqman 探针法检测其β-catenin mRNA 表达水平,胰腺癌细胞株AsPC-1,MIAPaCa
-2,T3M4,BxPC-3 与COLO357 的化疗耐药检测使用CCK-8 试剂盒。结果: Wnt 通路中β-catenin 在不同类型的
胰腺癌细胞中表达mRNA 水平差异明显,细胞株T3M4,AsPC-1 与MIAPaCa-2 中β-catenin mRNA 水平低( 低β
-catenin 表达组) ,而COLO357 与BxPC-3 中β-catenin mRNA 表达水平较高( 高β-catenin 表达组) ,胰腺癌细胞
T3M4,AsPC-1 与MIAPaCa-2 作为β-catenin 低mRNA 表达组的5-FU 抑制率3 个差异药物浓度高中低各自是
( 0.891±0.076) 、( 0.812±0.098) 和( 0.724±0.093) 。相同化疗浓度下胰腺癌细胞COLO357 与BxPC-3 作为β-
catenin 高mRNA 表达组对5-FU 抑制率分别是( 0.625± 0.038) 、( 0.536± 0.033) 和( 0.368± 0.057) 。β-catenin
mRNA 表达低的细胞对5-FU 化疗敏感性明显高于β-catenin 表达高的细胞,差异有统计学意义( P<0.05) 。结
论: 胰腺癌细胞5-FU 的化疗敏感性与β-catenin 的mRNA 表达水平对关系紧密。
[Key word]
[Abstract]
Objective: To investigate the relationship expression of beta-catenin mRNA and chemoresistance
in pancreatic cancer cells to 5-FU.Methods: The chemosensitivity of five pancreatic carcinoma
cell lines to 5-FU in vitro was evaluated with CCK-8 kit.β-catenin mRNA expression of pancreatic
carcinoma cells was analyzed by Real-time PCR.Results: Pancreatic carcinoma cells T3M4,As-
PC-1,MIAPaCa-2 expressed low amounts of β-catenin mRNA( Low β-catenin group) .Cells of COLO357
and BxPC-3 expressed high amounts of β-catenin mRNA( High β-catenin group) in five cell
lines.The inhibition rates( IRs) of Low β-catenin group cells for high,middle and low dose to 5-FU
were( 0.891±0.076) ,( 0.812±0.098) and( 0.724±0.093) respectively.The IRs of High β-catenin group
for high,middle and low dose to 5-FU were( 0.625±0.038) ,( 0.536±0.033) and( 0.368±0.057) respectively.
IRs of 5-FU tended to be lower in the cells with high β-catenin mRNA expression than
those with low β-catenin mRNA expression.The difference reached statistical significance( P<0.05) .
Conclusion: β-catenin mRNA expression levels were significantly correlated to 5-FU sensitivity in five
pancreatic carcinoma cell lines.
[中图分类号]
R 657.5
[基金项目]
收稿日期: 2017-02-20; 修回日期: 2017-05-06
基金项目: 国家自然科学基金( 81360339) ,内蒙古医科大学附属医院一般项目( 2017)
作者简介: 张强( 1981-) ,男,内蒙古医科大学附属医院普外科副主任医师,医学博士。
通讯作者: 张彤,主任医师,E-mail: zhan.sk@ qq.com 内蒙古医科大学附属医院普外科, 010050