用于ABO独立血细胞输血的固定酶
Christina Möller1, Fabian Pohlschröder2, Jan Wesche2
1Department of Biotechnology and Enzyme Catalysis Institute of Biochemistry, University of Greifswald, Felix-Hausdorff-Straße 4, 17487, Greifswald, Germany.
Chembiochem : a European journal of chemical biology
|November 24, 2025
概括
研究人员开发了一种方法,通过酶去除A和B抗原来制造通用红细胞缩物 (RCC) 和血小板缩物 (PC). 这项创新解决了血液供应方面的挑战,并降低了输血不兼容性风险.
科学领域:
- 生物技术是生物技术.
- 血液学 血液学 血液学
- 酶学 是一种酶学.
背景情况:
- 由于A和B抗原,ABO兼容性对于输血至关重要.
- 供体数量的减少和需求的增加使红细胞缩剂 (RCC) 和血小板缩剂 (PC) 的供应受到压力.
研究的目的:
- 开发一种产生ABO-通用RCC和PC的方法,以克服供应限制.
- 通过酶去除血液产品中的A和B抗原,同时保持其质量.
主要方法:
- 使用来自Flavonifractor plautii的酶来酶去除A抗原.
- 使用Pedobacter panaciterrae和Akkermansia muciniphila的银河酶去除B抗原.
- 在微粒上固定糖化酶,以便通过输血套过器轻松移除.
主要成果:
- 在RCC中的B阳性红细胞在48小时内在2-6°C下降到4%以下.
- 在20-24°C下4小时后,聚合的PC显示B阳性细胞减少了34%,剩余的A阳性血小板数量减少了4%.
- 该方法有效地产生ABO-通用血液产品,保持质量并减少不兼容性.
结论:
- 酶性抗原去除是生产通用RCC和PC的可行策略.
- 固定酶为血液制品中的ABO抗原修饰提供了一种安全的方法.
- 这种方法提高了血液供应和输血安全.
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