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用一种天然的小分子成本化物对HSP90进行向,以抑制亡和性结肠炎
Shan Yang1, Yunsen Zhang2, Yuying Shi3
1College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; TCM Prevention and Treatment of Metabolic and Chronic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China; Institute of High Altitude Multimorbidity/TCM-Integrated High-Altitude Medicine Center, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China.
在性结肠炎 (UC) 模型中,costunolide (CTL) 通过准热冲击蛋白90 (HSP90) 来抑制亡. 这种新的治疗方法有效减少炎症和肠道损伤,为UC治疗提供了一个有前途的策略.
科学领域:
- 生物化学 生物化学
- 分子生物学分子生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 亡有助于性结肠炎 (UC) 通过破坏肠道屏障并引起炎症.
- 热冲击蛋白90 (HSP90) 是亡的关键调节剂,也是UC的潜在治疗标.
- 在UC治疗中,自然化合物costunolide (CTL) 的作用机制尚不清楚.
研究的目的:
- 研究CTL在抑制亡中的作用及其在UC中的治疗潜力.
- 阐明CTL针对HSP90抑制死的机制.
主要方法:
- 细胞模型被用来评估CTL对死和死炎的影响.
- 西方涂抹,共免疫沉 (Co-IP),药物亲和度响应目标稳定性 (DARTS),质谱和细胞热转移试验 (CETSA) 用于分析信号通路和识别CTL目标.
- 进行了分子动力学模拟和使用硫酸 (DSS) 诱导的大肠炎小鼠的体内研究.
主要成果:
- 在实验室中,CTL被确定为一种新型亡抑制剂,可以抑制RIPK1/3-MLKL信号传递,并减少亡炎症.
- 在HSP90中,CTL与Cys572/564有共性结合,以全性抑制其功能,并破坏HSP90-RIPK1相互作用,从而阻断亡.
- 通过抑制RIPK1/3-MLKL通路,CTL有效地缓解了小鼠的DSS诱导的大肠炎.
结论:
- 在HSP90上的Cys572/564代表了用于全抑制的可用药物的部位.
- CTL作为一个有前途的化学支架,用于开发新的治疗方法,以向死和与HSP90相关的疾病,如UC.
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