生物学杂志

• 技术方法 • 上一篇    下一篇

混合培养基模式培养杂交瘤细胞表达单克隆抗体

  

  1. 1. 汕头大学 医学院, 汕头 515041;2. 中国科学院过程工程研究所 生化工程国家重点实验室, 北京 100190
  • 出版日期:2016-12-18 发布日期:2016-12-18
  • 通讯作者: 谢波,博士,研究方向生物制药,E-mail: bxie@ipe.ac.cn; 刘道军,研究员,研究方向生物医用高分子材料,E-mail: liudj@stu.edu.cn
  • 作者简介:黄亚杰,硕士,研究方向生物制药,E-mail: 1848836411@qq.com
  • 基金资助:
    国家863课题资助(2012AA02A406)

Monoclonal antibodies production by hybridoma cell culture based on mixed medium model

  1. 1. Medical College, Shantou University, Shantou 515041; 2. National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Science, Beijing 100190, China.
  • Online:2016-12-18 Published:2016-12-18

摘要: 采用混合培养基模式将杂交瘤细胞进行减血清悬浮驯化培养,通过优化提高单克隆抗体的表达量,并进行抗体的分离纯化。在杂交瘤细胞悬浮培养优化过程中,最终确定的血清浓度为2%胎牛血清,培养基配比为RPM1640∶ SFM4CHO∶ OptiCHO(4.5∶ 4.5∶ 1),接种密度为3×105cells/mL,采用批次补料流加培养,每2 d流加1次,每次流加量为初始体积的3%,抗体的表达量从原始的84 mg/L提高到168 mg/L。将其进一步在5 L搅拌式生物反应器中进行培养,离心后上清经protein A亲和层析纯化,确定抗体的产量为240 mg/L。

关键词: 杂交瘤细胞培养, 单克隆抗体, 悬浮驯化, 亲和层析

Abstract: In this study, hybridoma cell was adapted to the mixed medium containing less fetal bovine serum through suspension domestication, and the antibody concentration increased largely. The components of mixed medium were RPM1640∶ SFM4CHO∶ OptiCHO(4.5∶ 4.5∶ 1) with 2% FBS and the fed-batch fermentation process was carried out, in which the initial inoculation concentration was 3×105 cells/mL, and 3% (initial volume) chemical-defined feed medium was added every other day during cultivation. The antibody concentration increased to 168 mg/L from 84 mg/L. The hybridoma cells were further cultured in a 5 L stirred-bioreactor, and the products were purified by protein A affinity chromatography and the purified antibody concentration was 240 mg/L.

Key words: hybridoma cell culture, monoclonal antibody, suspension domestication, affinity chromatography