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2018大肠癌患者血清中硫氧还蛋白样蛋白―2表达水平及临床意义

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发表于 2018-8-15 20:21:33 | 显示全部楼层 |阅读模式
  【摘要】目的:探讨大肠癌患者血清中硫氧还蛋白样蛋白-2(Txl-2)的表达及临床意义。方法:采用酶联免疫吸附法(ELISA)检测82例大肠癌患者和25例健康对照者外周静脉血清中Txl-2含量。结果:大肠癌患者血清中Txl-2含量明显高于健康对照者(P0.05)。结论:Txl-2表达与大肠癌生物学行为存在联系,与大肠癌病情变化及预后密切相关(P http://
  【关键词】 大肠癌;血清Txl-2;酶联免疫吸附法
  【中图分类号】R446.11 【文献标志码】 A 【文章编号】1007-8517(2016)16-0093-03
  Abstract:Objective To investigate the serum of patients with colorectal thioredoxin-like protein -2 (Txl-2) expression and clinical significance. Methods Using enzyme-linked immunosorbent assay (ELISA) to detect 82 cases of colorectal cancer patients and 25 healthy controls peripheral vein serum Txl-2 content. Results The serum of patients with colorectal Txl-2 were significantly higher than healthy controls (P0.05). Conclusion Txl-2 expression and the biological behavior of colorectal cancer there is a link, is closely related to changes in condition and prognosis of colorectal cancer, the expression levels of serum Txl-2 for diagnosis, degree of malignancy and prognosis of colorectal cancer have a good clinical application value.
  Keywords:Colorectal Cancer; Serum Txl-2; ELISA
  结肠癌为全球高发的恶性肿瘤,发病危险因素主要包括肥胖、吸烟、运动量少和膳食中缺乏蔬果等,西方发达国家如欧洲和北美是大肠癌高发地区,大肠癌在欧美国家位居致死恶性肿瘤第二位[1-2]。在我国,大肠癌发病率也呈现逐渐上升的趋势,筛选和鉴定大肠癌敏感标志物,对于早期诊断和准确判断预后具有重要意义[3]。硫氧还蛋白样蛋白2(Thioredoxin-like protein 2, Txl-2)是同时属于硫氧还蛋白家族和核苷二磷酸激酶家族成员的蛋白[4],有研究报道Txl-2在大肠癌组织中存在高表达,且促进大肠癌的恶性进展,调控结肠癌细胞增殖、侵袭和凋亡抵抗等多种恶性生物学行为[5],但Txl-2在大肠癌患者血清中的表达情况及其与临床特征间的关系尚未见明确报道。本研究则通过检测大肠癌患者外周血中Txl-2的表达水平,分析其表达与大肠癌患者临床病理参数的关系,探讨其在大肠癌诊断及预后中的作用。
  1 资料与方法
  1.1 一般资料 选取2010年11月至2014年2月82例经病理学检查确诊为大肠癌的患者进入本研究,其中男性49例,女性33例;>60岁45例,≤60岁37例;肿瘤直径>4cm 38例,≤4cm 44例;高分化8例,中分化53例,低分化21例;Dukes分期:A+B期40例,C+D期42例;有淋巴结转移者45例,无淋巴结转移者37例;有远处器官转移者33例,未见远处器官转移者49例;术后复查患者29例,其中3年内复发者16例,未复发者13例。选择25例健康体检者作为对照组。所有患者术前均未接受化疗和放疗,患者及健康对照组均签署知情同意书。患者一般资料差异无统计学意义(P>0.05),具有可比性。
  1.2 检测方法 采集试验对象外周静脉血3mL,自然凝固后,3000rpm 离心5min,收集上层血清置-20℃储存备用。Txl-2 ELISA检测试剂盒购自上海联世生物科技有限公司,具体检测方法按试剂盒说明书进行。
  1.3 统计学分析 用SPSS 19.0软件进行统计分析,计量资料以均数加减标准差(x[TX-*3]±s)表示,组间比较采用t检验,以P    2.2 Txl-2表达与大肠癌临床病理特征的关系 Txl-2在大肠癌患者血清中的表达水平与患者性别、年龄及肿瘤大小均无明显相关(P>0.05);低分化大肠癌患者和Dukes C+D期患者血清中Txl-2的表达分别为(182.41 ± 11.65)pg/mL和(167.56±20.50)pg/mL,显著高于中、高分化组(139.08±20.92)pg/mL及Dukes A+B组(133.62 ± 21.13)pg/mL,Txl-2在有淋巴结和远处器官转移组大肠癌患者血清中的表达均高于无淋巴结和远处器官转移者(P参考文献
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  (编辑:程鹏飞)
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