IL-11 是心血管纤维化的关键决定因素
Sebastian Schafer1,2, Sivakumar Viswanathan2, Anissa A Widjaja2
1National Heart Centre Singapore, Singapore.
Nature
|November 22, 2017
概括
通过激活纤维细胞来驱动纤维化. 抑制IL-11为纤维化疾病提供了潜在的治疗策略,绕过向转化生长因子β1 (TGFβ1) 的副作用.
科学领域:
- 心血管生物学
- 脏病理学
- 细胞信号传输
背景情况:
- 纤维化是导致心血管和脏疾病的主要原因.
- 转化生长因子β1 (TGFβ1) 促进纤维化,但具有性作用.
- 针对TGFβ1的下游因子可能提供更安全的治疗策略.
研究的目的:
- 在纤维细胞中识别TGFβ1的下游因子.
- 研究介导TGFβ1诱导纤维化中的IL-11.
- 评估IL-11抑制作为纤维化疾病的治疗策略.
主要方法:
- 人体纤维细胞的综合成像基因组分析.
- 研究IL-11和IL11RA的表达和功能.
- 使用心脏和纤维化的小鼠模型.
主要成果:
- 在纤维细胞中,IL-11是对TGFβ1的主要转录反应.
- IL-11驱动纤维生殖所需的自克林ERK依赖信号.
- 纤维细胞特异性IL-11激活会导致器官纤维化;IL-11受体阻塞会阻止它.
结论:
- IL-11是纤维细胞激活和纤维化的主要媒介.
- 抑制IL-11是一种有前途的治疗方法.
- 向IL-11可以避免与TGFβ1抑制相关的毒性.
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