LAPTM5通过稳定粉红中的STING加剧LL-37引起的STING介导炎症
Wenyue Huang1,2, Hailun He3, Haien Wu4
1Department of Dermatology, Shengjing Hospital of China Medical University, Shenyang, China.
Communications biology
|October 14, 2025
概括
LAPTM5稳定了STING,一种与疹等皮肤炎症有关的蛋白质. 抑制LAPTM5或STING可以减少粉红病症状,这表明这种慢性炎症性皮肤疾病的新治疗点.
科学领域:
- 免疫学 免疫学 免疫学
- 皮肤病学 皮肤病学
- 分子生物学分子生物学
背景情况:
- 红是一种慢性炎症性皮肤疾病.
- LL-37和STING信号传递与疹病变发生有关.
- STING (干扰素基因刺激器) 是先天免疫系统中关键的DNA传感器.
研究的目的:
- 研究LAPTM5,一种与STING相互作用的蛋白质在疹中所起的作用.
- 确定LAPTM5在调节STING活动中的机制.
- 评估LAPTM5和STING抑制作为粉红病的治疗策略.
主要方法:
- 在病患者病变和小鼠模型中核DNA碎片化的分析.
- 在巨细胞中量化LAPTM5和STING表达.
- 在LAPTM5中断时评估STING信号和炎症性细胞因子的产生.
- 共同免疫沉以研究LAPTM5-STING相互作用和无处不在.
- 在粉红病样小鼠模型中对STING抗剂H-151和LAPTM5敲击的评估.
主要成果:
- 在疹病变和模型中增加核DNA碎片化,LAPTM5和STING水平.
- 通过LAPTM5 Knockdown,可以降低STING水平,信号和炎症.
- 通过抑制其降解,LAPTM5稳定了STING.
- 无论是STING抑制还是LAPTM5敲击都能改善类似于粉红病的表型.
结论:
- LAPTM5充当了刺痛稳定剂,加剧了粉红病中刺痛驱动的炎症.
- 准LAPTM5或STING为粉红治疗提供了潜在的治疗途径.
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