银化物Rb1通过促进NRF2/QKI/SMAD7轴来缓解细胞衰老和肺纤维化
Qing Zheng1, Feng-Ping Lei1, Shan Hui1
1Department of Geriatrics, Hunan Provincial People's Hospital, (The First Affiliated Hospital of Hunan Normal University), Changsha 410005, Hunan Province, P. R. China.
The American journal of Chinese medicine
|January 5, 2025
概括
银化物Rb1通过激活NRF2/QKI/SMAD7通路来抑制肺纤维化,减少细胞衰老和纤维化. 这为治疗肺纤维化提供了潜在的治疗策略.
科学领域:
- 肺部医学 肺部医学
- 细胞生物学 细胞生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 细胞衰老是肺纤维化 (PF) 进展的关键因素.
- 金色化物Rb1对细胞衰老和PF都表现出抑制作用.
- 了解PF中的金色化物Rb1的分子机制对于治疗开发至关重要.
研究的目的:
- 阐明基因化物Rb1调节细胞衰老和肺纤维化背后的分子机制.
- 调查NRF2/QKI/SMAD7轴在Ginsenoside Rb1对PF的治疗作用中的作用.
主要方法:
- 在MRC-5细胞中建立了使用Bleomycin (BLM) 的肺纤维化小鼠模型和使用Adriamycin RD (ARD) 的细胞衰老模型.
- 使用血素和 (HE) 染色,马森染色,RT-qPCR,西部斑点和ELISA来评估纤维化和基因/蛋白质表达.
- 使用SA-β-gal染色来量化细胞衰老.
主要成果:
- 银化物Rb1在小鼠中显著抑制了BLM诱导的PF,在MRC-5细胞中抑制了ARD诱导的衰老和纤维化.
- ARD诱导的衰老减少了NRF2,QKI和SMAD7的表达;NRF2过度表达减轻了这些影响.
- 银化物Rb1激活了NRF2/QKI/SMAD7轴,NRF2通过QKI增强了SMAD7mRNA的稳定性.
结论:
- 银化物Rb1通过激活NRF2/QKI/SMAD7信号通路来缓解PF中的细胞衰老和纤维化.
- 本研究确定了PF治疗的潜在治疗策略,并阐明了其潜在的分子机制.
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