不同的B细胞消耗策略对淋巴组织的影响
Carlo Tur1, Markus Eckstein2, Laura Bucci3
1Department of Medicine 3 - Rheumatology and Immunology, Friedrich-Alexander-Universität Erlangen-Nürnberg and Uniklinikum Erlangen, Erlangen, Germany; Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander-Universität Erlangen-Nürnberg and Uniklinikum Erlangen, Erlangen, Germany; Division of Rheumatology-Fondazione Policlinico Universitario A. Gemelli IRCCS - Università Cattolica del Sacro Cuore, Rome, Italy.
Annals of the rheumatic diseases
|July 12, 2025
概括
基于蛋白质的B细胞枯竭疗法,包括奥比努祖马布和布利纳图莫马布,在自身免疫性疾病的淋巴结内枯竭B细胞方面表现出有限的疗效. 完全的B细胞枯竭和卵泡结构破坏主要观察到CD19仿真抗原受体T细胞治疗.
科学领域:
- 免疫学 免疫学 免疫学
- 自免疫性疾病 自免疫性疾病
- 细胞疗法细胞疗法
背景情况:
- 自身免疫性疾病 (AIDs) 涉及免疫系统的调节失调.
- B细胞枯竭是艾滋病的治疗策略.
- 新型B细胞消耗剂包括糖基工程抗CD20抗体奥比努祖马布 (OBI) 和CD19/CD3T细胞参与者布利纳图莫马布 (BLI).
研究的目的:
- 为了比较OBI和BLI对艾滋病患者B细胞枯竭的疗效.
- 评估这些疗法与rituximab (RTX) 和CD19化学抗原受体 (CAR) T细胞疗法对比.
- 评估对淋巴结B细胞,血细胞和卵泡结构的影响.
主要方法:
- 在治疗前后对连续的淋巴结活检进行分析.
- 对CD19+B细胞,CD20+B细胞,血细胞,T细胞和巨细胞的免疫组合化学评估.
- 评估毛囊架构,包括毛囊树突细胞,T毛囊辅助细胞和繁殖.
主要成果:
- CD19-CAR T细胞实现了100%的B细胞枯竭和毛囊破坏.
- 基于蛋白质的疗法 (OBI,RTX,BLI) 显示了可变的B细胞枯竭 (分别为92%,86%,69%) 和有限的毛囊影响.
- 大多数疗法都发生了外围B细胞枯竭,但淋巴结枯竭与基于蛋白质的药物不一致.
结论:
- 基于蛋白质的B细胞耗尽疗法部分减少,但通常不会耗尽淋巴结B细胞.
- 完整的毛囊架构与基于蛋白质的疗法可能与疾病复发有关.
- 在AID中,CD19-CAR T细胞表现出优质B细胞枯竭和毛囊破坏.
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