普尼卡拉因通过Sirtuin 1/FoxO3a轴增强自,以抑制细胞内微细菌疹感染
Kefan Bi1,2, Bihan Xu1,2, Dan Cao1,2
1State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, China-Singapore Belt and Road Joint Laboratory on Infection Research and Drug Development, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hang Zhou, Zhe Jiang, 310003, China.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|October 14, 2025
概括
榴中的一种化合物Punicalagin通过增强自,而不是直接杀死,增强了对Mycobacterium abscessus (MAB) 的巨体防御. 这种宿主导策略在治疗具有挑战性的MAB感染方面表现有前途.
科学领域:
- 传染性疾病 传染性疾病
- 免疫学 免疫学 免疫学
- 药理学 药理学是指药理学的学科.
背景情况:
- 由于抗生素耐药性,Mycobacterium (MAB) 感染很难治疗.
- 需要新的治疗策略来对抗MAB持久性.
研究的目的:
- 为了研究punicalagin的潜力,一个石榴衍生的化合物,作为对MAB的宿主导疗法.
- 阐明punicalagin影响巨细胞活动和MAB感染的机制.
主要方法:
- 在体外研究中使用感染MAB的THP-1巨细胞.
- 对自标记物的分析 (LC3-II/LC3-I比率,p62降解).
- 在MAB肺部感染的体内小鼠模型.
- 对排序的巨细胞群体进行转录基因分析.
主要成果:
- 普尼卡拉金 (40微米) 在THP-1巨细胞中将细胞内MAB降低了47%.
- 普尼卡拉通过SIRT1/FoxO3轴促进了自,抑制了PI3K/Akt/mTOR通路.
- 在体内,punicalagin降低了小鼠的MAB负担和肺炎.
- 普尼卡拉金在间歇性巨细胞中表现出优越的疗效.
结论:
- 普尼卡拉增强了巨细胞的自,提供了针对MAB的新型宿主导治疗方法.
- 这种SIRT1/FoxO3通路对于punicalagin的抗MAB作用至关重要.
- 尼卡拉金作用的细胞选择性需要进一步研究.
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