在三级淋巴体结构内的皮肤免疫-介质酶相互作用促进了hidradenitis suppurativa的自身免疫病原发生
Wei-Wen Yu1, Joy N P Barrett1, Jie Tong1
1The Hansjörg Wyss Department of Plastic Surgery, New York University Grossman School of Medicine, New York, NY, USA.
Immunity
|December 11, 2024
概括
研究人员发现了三级淋巴状结构 (TLSs) 在 hidradenitis suppurativa (HS) 皮肤病变中. 这些由纤维细胞信号驱动的结构涉及免疫细胞和抗体生产,为HS和相关的自身免疫性疾病提供了新的治疗点.
科学领域:
- 皮肤病学 皮肤病学
- 免疫学 免疫学 免疫学
- 病理学 病理学 病理学
背景情况:
- 补腺炎 (HS) 是一种慢性炎症性皮肤疾病.
- HS的特征是深层皮肤炎症道.
- 在HS病变中的免疫微环境仍然不完全理解.
研究的目的:
- 为了研究人类HS病变中的免疫微环境.
- 确定HS病变发生的关键细胞和分子参与者.
- 探索HS的潜在治疗点.
主要方法:
- 对HS病变的多omics分析.
- 多复合成像可视化免疫细胞分布.
- 开发一个微流体"TLS on a chip"模型.
- 纤维细胞-淋巴细胞相互作用的分析.
主要成果:
- 在HS道附近确定了三级淋巴体结构 (TLS).
- 这些TLS中含有增殖性T细胞 (Tfh,Treg,IL17A+,IFNG+) 和克隆性血细胞.
- HS纤维细胞分泌CXCL13/CCL19,通过TNF-α反循环协调淋巴细胞聚合.
- 早期的TNF-α阻断在微流体模型中抑制了TLS的形成.
结论:
- TLS是HS免疫微环境的一个关键特征.
- 纤维细胞驱动的细胞因子信号传递对于HS中TLS形成至关重要.
- 准TNF-α可能是HS的可行的治疗策略.
- 这些发现可能会为其他自身免疫性疾病 (如克罗恩病) 的治疗提供信息.
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