准BMI-1以耗尽自身免疫中的抗体分泌细胞
Jack Polmear1,2, Lauren Hailes1,2, Moshe Olshansky1,2
1Department of Biochemistry and Molecular Biology Monash University Clayton VIC Australia.
Clinical & translational immunology
|October 6, 2023
概括
在自身免疫模型中,准表观遗传调节器BMI-1有效地消耗了自身反应性抗体分泌细胞 (ASC). 这项研究表明,BMI-1抑制是抗体介导自身免疫性疾病的有前途的治疗策略.
科学领域:
- 免疫学 免疫学 免疫学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 自免疫性疾病 自免疫性疾病
背景情况:
- 像SLE和Sjögren综合征这样的自身免疫性疾病涉及自身反应性抗体分泌细胞 (ASC).
- 目前针对B细胞或免疫抑制的治疗方法不足以对抗长期存在的ASC.
- 针对ASC的新型治疗策略对于改善患者的治疗结果至关重要.
研究的目的:
- 调查针对表观遗传调节器BMI-1的潜力,以耗尽ASCs.
- 评估BMI-1抑制在体内和体外自身免疫模型中的有效性.
主要方法:
- 用BMI-1抑制剂 (PTC-028) 对Lyn小鼠 (SLE模型) 的治疗.
- 在接受治疗的小鼠中评估ASC,血清抗体和免疫复合体.
- 评估PTC-028对Sjögren综合征患者ASC的影响,使用基于人类纤维细胞的新型试验.
主要成果:
- 在小鼠中,BMI-1抑制显著降低了脏和骨髓ASC.
- 减少ASC与细胞周期基因表达的改变相关,血清IgG3降低,免疫复合体和抗DNAIgG降低.
- 在Sjögren综合征患者和健康捐赠者中,PTC-028有效降低了活体细胞存活率.
结论:
- 抑制BMI-1在各种情况下证明了在减少ASC的有效性.
- BMI-1代表了抗体介导的自身免疫性疾病的可行的治疗标.
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