中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (25): 4051-4056.doi: 10.3969/j.issn.2095-4344.2014.25.020

• 生物材料综述 biomaterial review • 上一篇    下一篇

α-Gal抗原与动物源性医疗器械免疫原性风险控制

柯林楠1,方  玉1,单永强1,2,冯晓明1,徐丽明1,2,王春仁1   

  1. 1中国食品药品检定研究院,北京市  100050;2温州医科大学,浙江省温州市  352035
  • 收稿日期:2014-05-17 出版日期:2014-06-18 发布日期:2014-06-18
  • 通讯作者: 柯林楠,副主任技师,中国食品药品检定研究院医疗器械所生物材料与组织工程室,北京市 100050
  • 作者简介:柯林楠,女,1977年生,北京市人,汉族,2004年中国科学院生态环境研究中心毕业,硕士,副主任技师,主要从事医疗器械质量控制与评价研究。
  • 基金资助:

    再生型医用植入器械国家工程实验室PI项目“动物源性生物材料免疫原性检测与评价技术研究”(2012NELRMD002);中国食品药品检定研究院中青年研究发展基金“动物源性脱细胞生物材料中残留免疫原性因子检测方法研究”(2011C2)

Alpha-Gal antigen and immunity risk control of animal-derived medical devices

Ke Lin-nan1, Fang Yu1, Shan Yong-qiang1, 2, Feng Xiao-ming1, Xu Li-ming1, 2, Wang Chun-ren1   

  1. 1National Institutes for Food and Drug Control, Beijing 100050, China; 2Wenzhou Medical University, Wenzhou 352035, Zhejiang Province, China
  • Received:2014-05-17 Online:2014-06-18 Published:2014-06-18
  • Contact: Ke Lin-nan, National Institutes for Food and Drug Control, Beijing 100050, China
  • About author:Ke Lin-nan, Master, Associate chief physician, National Institutes for Food and Drug Control, Beijing 100050, China
  • Supported by:

    Regenerative Medical Implants National Engineering Laboratory PI Program, No. 2012NELRMD002; Young and Middle-aged Research Development Foundation of National Institutes for Food and Drug Control, No. 2011C2

摘要:

背景:目前动物源性医疗器械被广泛应用于临床,尽管它的有效性得到了认可,但它的安全性特别是免疫原性日益受到人们的关注。
目的:为了保证动物源性医疗器械的质量安全,研究其免疫原性风险控制。
方法:作者应用计算机检索Sciencedirect数据库、Wiley-Blackewell电子期刊数据库和万方数据库中1985年1月至2013年6月的文章,在标题和摘要中以“α-Gal抗原,免疫原性,异种移植”或“α-Gal antigen, immunity, xenotransplantation”为检索词进行检索。
结果与结论:目前对异种植入物抗原中Galα1-3Gal抗原(即α-Gal抗原)的研究较多。α-Gal抗原存在于大量非灵长类哺乳动物、新世纪猴体内糖基化合物中,在人类及旧世纪猴体内不表达,但在人体中存在抗α-Gal抗体。α-Gal抗原与抗α-Gal抗体的结合形成了异种移植的免疫屏障。为了保证动物源性医疗器械的使用安全有效,应对动物源性材料进行选择,采用适当的工艺减少或去除α-Gal抗原,同时还应建立灵敏度高、重复性好的α-Gal抗原检测方法。


中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程


全文链接:

关键词: 生物材料, 材料相容性, α-Gal抗原, 免疫原性, 异种移植

Abstract:

BACKGROUND: Medical devices from animals are commonly used in clinical application. Despite their efficiency is widely accepted, their safety, especially immunity has been concerned.
OBJECTIVE: To investigate immunity risk control to medical devices from animals for safety consideration.
METHODS: Using “α-Gal antigen, immunity, xenotransplantation” in Chinese and English as the key words, the first author conducted a computer search of Science direct database (www.sciencedirect.com), Wiley-Blackewell database (http://onlinelibrary.wiley.com) and Wanfang database (www.wanfang.com.cn) through screening the titles and abstracts.
RESULTS AND CONCLUSION: Increasing evidence shows that, Gal α1-3Gal antigen (α-Gal antigen) is recognized as the major antigen and abundantly expressed on glycoconjugates of non-primate mammals and New World monkeys. In contrast, the α-gal epitope is not expressed on glycoconjugates of humans and Old World monkeys. Instead, they produce a very large amount of natural anti-α-Gal antibody that specifically binds the α-gal epitope. The binding of human natural anti-α-Gal to α-gal epitopes expressed on non-primate mammal animals was expected to be unique immunological barrier in xenotransplantation. Therefore, it is important to choose raw materials, reduce or eliminate the α-Ggal epitope, establish highα-Ggal epitope detection methods with high sensitivity and good repeatability for achieving a greater safety and efficiency of medical devices from animals.


中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程


全文链接:

Key words: antigen, transplantation, heterologous, review

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