CPE-ΔN的高表达预示结直肠癌患者预后不良
杜月娟;刘凤琴;周坤
【期刊名称】《实用肿瘤学杂志》 【年(卷),期】2014(000)002
【摘要】目的：羧肽酶E的剪接变异体（ Carboxypeptidase E ，CPE-ΔN）在多种不同类型的肿瘤中表达，本研究的目的是检测CPE-ΔN在人类结直肠癌组织（ CRC）中的表达，并评估其可能作为潜在的预后生物标志物。方法应用qRT-PCR和Western blot两种方法分析了CPE-ΔN在219例结直肠癌患者中的表达情况。结果 CPE-ΔN在结直肠癌组织中高表达，并且CPE-ΔN mRNA的高表达与肿瘤分化程度，pT分期，pN分期，肿瘤复发及淋巴结转移密切相关；Cox风险比例模型多因素分析结果显示，CPE-ΔN的高表达是结直肠癌患者一个独立的预后因素（ P＝0．011）。结论 CPE-ΔN可能是结直肠癌患者一个潜在的预后生物标志物。%Objective Carboxypeptidase E ( CPE) is one of the most important carboxypeptidases in-volved in the biosynthesis of numerous peptide hormones and neurotransmitters and plays an important role in en -docrine regulation .A splice variant of CPE ( CPE-ΔN) has been detected and the mechanism of CPE -ΔN action in tumorigenesis has been studied in many different cancers .The aim of this study is to examine CPE -ΔN ex-pression in human colorectal cancer ( CRC) and to evaluate its possible application as a potential prognostic mark-er.Methods In the present study ,we have analyzed isoform expression of CPE -ΔN by qRT-PCR and West-ern blot in 219
CPE-ΔN的高表达预示结直肠癌患者预后不良
