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使用菌体库对人类CD93进行查和构建纳米体,并研究它们的抗血管生成作用

Hui Miao¹, Yiling Wu¹, Hao Ouyang²

¹State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, China.

Frontiers in bioengineering and biotechnology

|May 16, 2024

概括

确定了针对Cluster of Differentiation 93 (CD93) 的鱼衍生的新型纳米体 (Nbs). 这些纳米体有效地抑制血管生成并增加血管透性,显示出临床应用的潜力.

科学领域:

生物技术是生物技术.
免疫学免疫学免疫学
分子生物学分子生物学

背景情况:

差异化集群93 (CD93) 是血管生成的关键调节剂,也是抑制瘤血管生成的潜在治疗标.
目前,临床上没有针对CD93的治疗抗体.

研究的目的:

选和识别针对人类CD93.93的新型纳米体 (Nbs).
评估已识别的Nbs.的结合亲和力,稳定性和抗血管性潜力.

主要方法:

使用ELISA对来自鱼的纳米体菌体库进行选.
使用大肠杆菌表达的抗CD93 Nbs的净化.
通过流细胞计和ELISA评估结合亲和力.
通过体外测试 (MTT,伤口愈合,管形成) 评估抗血管性活性.
通过Western Blot和通过分子对接的结合部位进行蛋白质表达的分析.

主要成果:

两种新型抗CD93纳米体NC81和NC89成功分离和净化.
NC81和NC89在人静脉内皮细胞 (HUVEC) 上显著结合CD93.
这些纳米体表现出高热稳定性,并在体外有效抑制HUVEC的增殖,迁移和管形成.
分子对接揭示了CD93上NC81和NC89的独特结合点,由键和盐桥介导.

结论:

已识别的纳米体NC81和NC89有效地与CD93结合,并抑制血管生成.
这些纳米体还增加了血管透性,这表明血管生成相关疾病的治疗潜力.

关键词:

CD93 CD93 CD93 CD93 CD93 CD93 CD93 CD93 CD93 CD93 CD93 CD93 血管新生是因为血管新生.纳米体是一个纳米体.菌体显示器可以显示菌体.血管透性的血管透性

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