在CD45-ADC之后的移植可以在先天性和单独的环境中纠正Rag1免疫缺陷
Francesca Pala1, Cristina Corsino1, Enrica Calzoni1
1Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Md.
The Journal of allergy and clinical immunology
|August 11, 2023
概括
使用CD45-抗体药物合物 (CD45-ADC) 的新调节方法使得在免疫缺陷与免疫失调 (CID-ID) 联合免疫缺陷模型中,即使是与单一的捐赠者,也能够成功地移植造血细胞.
科学领域:
- 免疫学 免疫学 免疫学
- 血液学 血液学 血液学
- 移植科学 移植科学
背景情况:
- 重组酶激活基因 (RAG1,RAG2) 的突变会导致免疫缺陷,包括免疫失调的综合免疫缺陷 (CID-ID).
- 造血细胞移植 (HCT) 对CID-ID有治愈作用,但调节方案可能有毒.
- 在CID-ID患者中,哈普洛同一性HCT的结果很差.
研究的目的:
- 在CID-ID的小鼠模型中,评估CD45-抗体药物合物 (CD45-ADC) 作为单一的HCT调节剂.
- 评估CD45-ADC条件化后与先天性和单基因相同的捐赠者进行多系植入和免疫复合.
主要方法:
- Rag1-F971L小鼠 (CID-ID的一个模型) 接受了CD45-ADC,全身辐射或同型ADC调节.
- 进行了来自先天性或单独的捐赠者的骨髓细胞移植.
- 流细胞计和组织学被用来分析嵌合体,免疫重构和胸膜结构.
主要成果:
- 仅仅通过CD45-ADC调节,就实现了强大的移植和免疫复合,恢复了胸腺,骨髓和外围部位.
- 最佳的CD45-ADC剂量为先天性移植的1.5mg/kg,并为随机移植的5mg/kg.
- 没有观察到移植对宿主疾病.
结论:
- 单剂CD45-ADC调节使Rag1低形态小鼠的完整的捐赠者合体和免疫复合成为可能.
- 这种方法即使在平分异构移植中也是有效的,这表明了人类的潜在应用.
关键词:
在CD45-ADC中使用CD45-ADC.在RAG RAG的基础上.条件调节方案的调节方案.植入方式 植入方式 engraftment造血细胞移植 造血细胞移植免疫调节失调 免疫调节失调免疫复合 免疫复合 免疫复合免疫缺陷是一种免疫缺陷.更多相关视频
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