布鲁素A通过巨分化改善性结肠炎:向HSP90介导的IL-17信号和NF-κB激活
Jiazhen Wu1, Huiyuan Zeng2, Chi Zhang2
1Shenzhen Bao'an Authentic TCM Therapy Hospital, Shenzhen 518101, PR China; Shenzhen Key Laboratory of Hospital Chinese Medicine Preparation, Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen 518033, China.
布鲁素A (BA) 通过IL- 17/ NF- kB途径抑制M1巨分化,以热冲击蛋白90 (HSP90) 为目标,有效治疗性结肠炎 (UC). 这种天然化合物对UC治疗具有前景.
科学领域:
- 药理学
- 免疫学
- 胃肠病学
背景情况:
- 性结肠炎是一种慢性炎症性肠病,治疗选择有限.
- 布鲁塞因A (BA) 是来自Brucea javanica的一种类型,具有药理作用,但其在UC中的有效性和机制尚不清楚.
- 研究BA的抗炎作用,特别是其对巨分化和IL-17/NF-κB通路的影响,对于UC治疗的发展至关重要.
研究的目的:
- 在性结肠炎 (UC) 的小鼠模型中评估 Bruceine A (BA) 的治疗效果.
- 阐明BA作用的潜在机制,重点是通过IL-17/NF-κB信号通路抑制M1巨分化.
- 在UC治疗中确定BA的潜在分子点.
主要方法:
- 建立并使用BA治疗的小鼠UC模型.
- 治疗功效的评估包括结肠长度,组织病理学,炎症标志物和上皮屏障完整性.
- 在体外研究中评估了THP-1细胞中的细胞活力和巨分极标记物 (iNOS,TNF-α);网络药理学和西部斑点分析被用于识别和验证BA的分子标和信号通路 (IL-17/NF-κB,HSP90).
主要成果:
- 通过恢复结肠长度,减少炎症,并通过紧结蛋白上调增强上皮屏障功能,BA治疗显著改善了DSS诱导的UC.
- 在体外,BA抑制了M1巨分化,因 iNOS和TNF-α的表达减少而显现,而不会影响IEC-6细胞的活力.
- 在机理上,BA向热冲击蛋白90 (HSP90),导致IL-17和NF-κB通路激活,这一过程因HSP90过度表达而被废除.
结论:
- 布鲁素A通过有效抑制M1巨分化,对性结肠炎 (UC) 具有显著的治疗潜力.
- BA的抗炎作用通过向HSP90,随后抑制IL-17和NF- kB信号通路.
- BA代表了一种有前途的天然化合物,用于开发针对UC的新疗法.
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