α-甲酰辅酶A消旋酶、核基质蛋白在前列腺
癌初期诊断灵敏性的比较
刘志明,李泽惠,李志鹏
【摘要】 目的 检测前列腺癌和非前列腺癌患者前列腺液中α-甲酰辅酶A消旋酶(AMACR)、核基质蛋白(NMP)的含量,分析比较各指标对初期诊断的特异性和灵敏性。方式 64例前列腺癌标本(年龄在50岁以上)和24例对照组标本均来自泌尿外科住院患者和门诊患者。用前列腺按摩的方式获取前列腺癌患者前列腺液64例,非前列腺癌患者共24例作为对照组。标本放于-70 ℃冰箱保留,在同一时刻内用双抗体夹心酶联免疫反映(ELISA)检测标本。结果 α-甲酰辅酶A消旋酶在64例前列腺癌患者的前列腺液里有很高灵敏性,灵敏性为%(62/64),而且是非前列腺癌患者的20倍以上,具有显著统计学意义(P<),仅有2例α-甲酰辅酶A消旋酶浓度和对照组没有区别(P>),64例前列腺癌患者的核基质蛋白是对照组的4倍,灵敏性为%。结论 AMACR具有很高的灵敏性和特异性,比NMP具有更高的灵敏性和特异性。
【关键词】 前列腺癌;诊断;α-甲酰辅酶A消旋酶;核基质蛋白
[Abstract] Objective To detect α-methylacyl-CoA racemase(AMACR),nuclear matrix protein(NMP)of prostate cancer and non-prostate cancer in prostatic analyze and compare various
indicators on early diagnosis specific and 64 example of prostate cancer specimen(aged over 50 years old)and 24 example of control group specimen came from urology in-patient and the method of prostate massage to get the prostatic fluid of prostate cancer patients of 64 cases,non-prostate cancer patients were with a total of 24 patients as a control group, in-70 ℃ refrigerator,at the same time using enzyme-linked immune response(ELISA)to test α-methylacyl coenzyme A racemase in 64 cases of prostate cancer in prostate fluid had a high sensitivity,and the sensitivity was %(62/64),20 times higher than non-prostate cancer with significant significance(P<).Only two cases of α-methylacyl coenzyme A racemase levels in the control group had no difference(P>).64 cases with prostate cancer of the prostatic nuclear matrix proteins level closed to 4 times higher than the control group,the sensitivity was 92%.Conclusion α-methylacyl-CoA racemase(AMACR)has a higher degree of sensitivity and specificity,than nuclear matrix protein(NMP).
[Key words] prostate cancer;diagnosis;α-methylacyl-CoA racemase;nuclear matrix protein
为检测前列腺癌和非前列腺癌患者前列腺液中α-甲酰辅酶A消旋酶(α-methylacyl-coenzyme A racemase,AMACR)、核基质蛋白(nuclear matrix protein,NMP)的含量,咱们对64例前列腺癌标本和24例非前列腺癌标本进行对照研究,现将结果总结如下。
1 资料与方式
一样资料 64例前列腺癌标本(实验组)和24例非前列腺癌标本(对照组)来自我院泌尿外科住院患者和门诊患者。
要紧的设备和试剂盒 温箱,酶标仪,自动洗板机,-70 ℃冰箱,可调微量移液器,离心机。试剂盒:鼠抗人α-甲酰辅酶A消旋酶、鼠抗人核基质蛋白,均购买于ADL公司。
实验步骤 (1)掏出酶标板,依照顺序别离加入100 μl标准品于空白微孔中。(2)别离标记样品编号,加入100 μl样品于空白微孔中。(3)在标准品孔和样品孔中加入50 μl的酶标记液,轻微震荡15 s。(4)(36±2)℃孵育反映60 min。(5)洗涤液用蒸馏水稀释20倍,洗板机清洗5次,每次均用吸水纸拍干,每次静置10~20 s。(6)每孔加入呈色剂A、B各50 μl,轻微震荡5 s。(7)(36±2)℃下避光孵育反映15 min。(8)每孔加入50 μl终止液,终止反映。(9)轻微混匀30 s,使蓝色充分变成黄色。(10)在30 min内放于波长450 nm