检验医学 ›› 2017, Vol. 32 ›› Issue (8): 733-737.DOI: 10.3969/j.issn.1673-8640.2017.08.017

• 实验室管理·论著 • 上一篇    下一篇

重组人胱抑素C质控品的制备及其性能分析

李江峰, 冯敏仪, 钱伟, 赵晓妮, 陈梓彤, 矫丽媛, 王继华, 才蕾   

  1. 国家地方联合自检型快速诊断工程实验室 广州万孚生物技术股份有限公司研发中心质控品实验室,广东 广州 510641
  • 收稿日期:2016-07-11 出版日期:2017-08-30 发布日期:2017-09-01
  • 作者简介:null

    作者简介:李江峰,男,1987年生,硕士,主要从事体外诊断工作。

Preparation and performance of recombinant human cystatin C quality control material

LI Jiangfeng, FENG Minyi, QIAN Wei, ZHAO Xiaoni, CHEN Zitong, JIAO Liyuan, WANG Jihua, CAI Lei   

  1. National and Local United Engineering Laboratory of High-Efficiency Self-Testing Reagents,Quality Control Laboratory of Research and Development Center of Guangzhou Wondfo Biotech Co.,Ltd.,Guangzhou 510641,Guangdong,China
  • Received:2016-07-11 Online:2017-08-30 Published:2017-09-01

摘要:

目的 以大肠埃希菌BL21表达的重组人胱抑素C(Cys C)蛋白作为原材料制备Cys C质控品,并对制备的质控品的各项性能进行分析。方法 通过基因工程手段,利用表达载体pCold1及宿主大肠埃希菌BL21表达重组人Cys C蛋白,纯化后对其进行冷冻干燥。结果 成功表达出重组人Cys C蛋白包涵体,透析复性后得到具有免疫学活性的可溶性Cys C重组蛋白。利用原核表达的Cys C蛋白制备Cys C质控品,并经过HITACHI及Roche平台进行检测,Cys C质控品在这2个平台都适用。结论 利用重组人Cys C蛋白制备的Cys C质控品具有良好的稳定性及可靠性,可以作为质控品用于不同的体外检测平台。

关键词: 胱抑素C, 重组蛋白, 质控品, 稳定性

Abstract:

Objective To prepare cystatin C(Cys C) quality control material by using recombinant human Cys C protein expressed in Escherichia coli BL21 as basic material. Methods By gene engineering method,recombinant human Cys C protein was expressed through pCold1 and BL21. Freeze drying was performed after purification. Results Inclusion bodies of recombinant human Cys C protein was expressed successfully. After renaturation by dialysis method,soluble recombinant human Cys C protein with immunological activity had been prepared. Cys C quality control material was prepared by using the recombinant human Cys C protein and determined by HITACHI and ROCHE analysis systems. Cys C quality control was suitable for the 2 analysis systems. Conclusions Cys C quality control material prepared by recombinant human Cys C protein has good stability and reliability,it could be used in various analysis platforms of in vitro diagnosis.

Key words: Cystatin C, Recombinant protein, Quality control material, Stability

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