多样化的巨细胞种群有助于人类皮肤移植与宿主疾病的明显表现
Johanna Strobl1,2,3, Laura M Gail1,3, Laura Krecu1
1Department of Dermatology, Medical University of Vienna, 1090 Vienna, Austria.
The British journal of dermatology
|November 27, 2023
概括
单核细胞 (MNPs) 在干细胞移植后在移植与宿主疾病 (GvHD) 中发挥着动态作用. 准这些细胞可能提供一种新的策略来对抗GvHD皮肤炎症.
科学领域:
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
- 移植科学 移植科学
背景情况:
- 移植与宿主疾病 (GvHD) 是异构血造干细胞移植 (HSCT) 的危及生命的并发症,阻碍其广泛用于血液恶性瘤.
- 皮肤GvHD涉及供体T细胞和受体记忆T细胞,但单核细胞 (MNP) 的作用越来越被认可.
研究的目的:
- 在患有急性皮肤GvHD的患者中描述MNP的身份,起源和功能.
- 研究GvHD皮肤病变中MNP的细胞动态和功能状态.
主要方法:
- 在36名急性皮肤GvHD患者的皮肤和血液样本上采用单细胞RNA测序和多重组织免疫光学.
- 在性别不匹配的移植中利用X链接基因表达来追踪捐赠者MNP适应和转录与宿主巨细胞的相似性.
主要成果:
- 在皮肤GvHD病变中鉴定出扩展的CD163+组织寄居巨细胞群,表现出抗炎和组织重塑的特性,包括IL-10的产生.
- 细胞与细胞相互作用分析表明,信号通路增强了调控性T细胞反应.
- 在慢性GvHD中观察到明显的益炎性巨细胞分化,与急性GvHD显著不同,表明亚型特定的细胞参与.
结论:
- 单核细胞在HSCT之后表现出动态和复杂的作用,特别是在GvHD病原体中.
- 具体的,时间解决的向策略来重聚MNP代表了管理GvHD皮肤炎症的有希望的治疗途径.
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