合成生物学 ›› 2023, Vol. 4 ›› Issue (4): 808-823.DOI: 10.12211/2096-8280.2023-020

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重组胶原蛋白表达体系研究进展

潘家豪1, 潘炜松2, 邱健3, 谢东玲2, 邹奇4, 吴川1   

  1. 1.中南大学冶金与环境学院,湖南 长沙 410083
    2.湖南诺合新生物科技有限公司,湖南 长沙 410001
    3.中南大学湘雅医院,湖南 长沙 410008
    4.华南师范大学生命科学学院,广东 广州 510631
  • 收稿日期:2023-03-06 修回日期:2023-05-17 出版日期:2023-08-31 发布日期:2023-09-14
  • 通讯作者: 吴川
  • 作者简介:潘家豪(2000—),男,硕士研究生。研究方向为重组胶原蛋白在植物表达及其应用。E-mail:thekid123go@163.com
    吴川(1983—),女,教授,博士生导师,湖湘青年英才,香港裘槎访问学者。研究方向为植物生物反应器、重金属污染生物修复等方面的研究。E-mail:wuchuan@csu.edu.cn
  • 基金资助:
    国家自然科学基金(31670955);中南大学前沿交叉项目(2023QYJC035)

Research progress on recombinant collagen expression system

Jiahao PAN1, Weisong PAN2, Jian QIU3, Donling XIE2, Qi ZOU4, Chuan WU1   

  1. 1.School of Metallurgy and Environment,Central South University,Changsha 410083,Hunan,China
    2.Hunan Novomore Biotechnology Corporation,Changsha 410001,Hunan,China
    3.Xiangya Hospital of Central South University,Changsha 410008,Hunan,China
    4.School of Life Sciences,South China Normal University,Guangzhou 510631,Guangdong,China
  • Received:2023-03-06 Revised:2023-05-17 Online:2023-08-31 Published:2023-09-14
  • Contact: Chuan WU

摘要:

胶原蛋白是哺乳动物中含量最多的蛋白质,至今已发现28种类型,主要分为纤维性胶原蛋白、网状胶原蛋白、珠状丝状胶原蛋白、锚定纤维蛋白、膜蛋白以及multiplexins胶原蛋白,其中纤维性胶原蛋白中Ⅰ型、Ⅱ型、Ⅲ型胶原蛋白占人体胶原蛋白的80%~90%。目前,根据来源,胶原蛋白大致分为动物源胶原蛋白和重组胶原蛋白。动物源胶原蛋白主要来源于陆生动物以及海洋动物,而重组胶原蛋白是指将人胶原蛋白基因克隆到选定的表达载体并转化到表达细胞内,最后通过纯化技术所获得的蛋白质。本文简述了胶原蛋白的结构、类别和生物合成机制,重点阐述了重组胶原蛋白表达体系及特点,包括原核生物、酵母、植物、杆状病毒以及哺乳动物细胞等表达体系及其优势与局限性,介绍了重组胶原蛋白市场前景及在眼科、软骨工程、皮肤治疗等生物医药方面的实际应用,并对重组胶原蛋白的研究和产业发展进行了展望。

关键词: 胶原蛋白, 基因工程, 重组胶原蛋白表达体系

Abstract:

Collagen is the most abundant protein in mammals, and its production has been widely used in biomedicine, cosmetics, leather, biotechnology, etc. At present, collagen is generally divided into animal collagen and recombinant collagen. Although animal collagen is the main source of collagen, most of it comes from animal carcasses, and its collagen has been cross-linked and embedded in native tissues, which is more demanding on extraction and purification technology. In addition, pathogen contamination and allergy risks have become unavoidable problems for animal collagen. Recombinant collagen is a protein obtained by using human collagen cDNA fragments as the backbone gene, cloning the gene to the selected expression vector and converting it into an expression cell, and finally achieved by purification technology. Due to its single molecule, clear structure and easy control, recombinant collagen is the best alternative to replace animal collagen in biomedicine and tissue engineering. In this paper, the structure, category, biosynthesis mechanism and market scale of collagen are briefly described. Emphasis is placed on the construction strategies, advantages and limitations of different expression systems of recombinant collagen, including prokaryotic, yeast, plant, baculovirus and mammalian or human cell expression systems. Prokaryotes and yeast have a short cycle of producing recombinant collagen, but do not have a triple helix structure. The plant expression system produces recombinant collagen with a moderate cycle and a certain triple helix structure. The baculovirus-insect expression system and the mammalian expression system have a long cycle of recombinant collagen production and a complete triple helix structure. The practical application of recombinant collagen in ophthalmology, cartilage engineering, skin treatment and other biological medicine is described. Currently, the most commercially valuable use of collagen is subcutaneous injection of soluble protein to repair damaged skin. At the same time, collagen, as the main component of animal skin, can cross-link collagen in raw hides through chemical processes such as tanning, so that collagen becomes harder, more durable, and corrosion-resistant leather. By designing collagen scaffolds that are familiar with the natural cytoplasmic matrix environment, it can effectively reveal the pathogenesis of cell behavior and disease etiology. It is expected to provide suggestions on the research of recombinant collagen and future industrial development.

Key words: collagen, gene engineering, recombinant collagen expression system

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