J Clin Invest:约伯综合征患者的血管生成和细胞外基质代谢受损

2021-06-25 MedSci原创 MedSci原创

目前有超过7000种罕见疾病,大多数缺乏具体的治疗方案。常染色体显性高IgE综合征(AD-HIES,又称约伯综合征)是由STAT3的突变导致,患者表现为免疫缺陷,并伴有严重的非免疫学特征,包括骨骼、结

目前有超过7000种罕见疾病,大多数缺乏具体的治疗方案。常染色体显性高IgE综合征(AD-HIES,又称约伯综合征)是由STAT3的突变导致,患者表现为免疫缺陷,并伴有严重的非免疫学特征,包括骨骼、结缔组织和血管异常,感染后肺部愈合不良,以及随后的肺衰竭。目前还没有针对这些异常的具体治疗方法。本文中,研究人员调查了潜在的机制,以确定治疗目标,研究已发表于J Clin Invest。

皮肤伤口组织学分析表明,AD-HIES患者在皮肤伤口愈合过程中肉芽组织形成和血管化延迟。AD-HIES患者皮肤成纤维细胞的全基因表达分析发现,调节细胞外基质(ECM)重塑和血管生成的STAT3控制的转录网络存在缺陷,其中缺氧诱导因子1α(HIF-1α)是一个重要因素。与此相一致的是,对AD-HIES患者的皮肤伤口和冠状动脉的组织学分析显示HIF-1α表达减少,并显示出ECM的异常组织和冠状动脉血管的形成改变。使用细胞培养和小鼠血管生成和伤口愈合模型的疾病模型证实了这些预测的缺陷,并证明了HIF-1α稳定药物的治疗效果。

综上,该研究为AD-HIES的病理生理学提供了机理上的见解,并为这种罕见疾病提出了潜在的治疗方案。

 

原始出处:

 

Natalia I Dmitrieva, Avram D Walts, et al., Impaired angiogenesis and extracellular matrix metabolism in autosomal-dominant hyper-IgE syndrome. J Clin Invest. 2020 Aug 3;130(8):4167-4181. doi: 10.1172/JCI135490.

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