在衰老过程中抑制Nrf2通路促进了白醇抗炎作用的减弱
Filipe Nogueira Franco1, Brenda Evangelista Peixoto1, Glaucy Rodrigues de Araújo1
1Biochemistry Laboratory of Aging and Correlated Diseases, Department of Biochemistry and Immunology, Biological Sciences Institute, Federal University of Minas Gerais, Av. Antônio Carlos 6627, 30161-970, Belo Horizonte MG Brazil.
Archives of gerontology and geriatrics
|November 14, 2024
概括
复星可以减少衰老细胞中的TNF和IL-6等炎症和氧化应激标志物,特别是通过Nrf2通路. 这种多在通过调节这些关键的炎症反应来对抗与年龄相关的疾病方面表现有前途.
科学领域:
- 老年学是一门学科.
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
背景情况:
- 衰老的特点是氧化应激增加和慢性低度炎症,称为"炎症".
- 炎症有助于与年龄相关的疾病.
- 复星是一种多,具有已知的抗氧化和抗炎性质.
- 转录因子 Nrf2 调节细胞防御氧化应激.
研究的目的:
- 研究复星对不同年龄组白细胞中细胞因子产生的影响.
- 评估Nrf2通路在白醇抗炎作用中的作用.
- 评估年龄如何影响复星对氧化应激和炎症的影响.
主要方法:
- 从三个年龄组 (20-39岁,40-59岁,60-80岁) 中分离出白细胞.
- 细胞被用白醇 (5μm) 和/或过氧化物 (150μM) 治疗了24小时,有或没有Nrf2抑制剂ML385.
- 使用ELISA测量了细胞因子水平 (TNF,IL-6,IL-10).
主要成果:
- 过氧化物刺激增加了所有年龄组的TNF和IL-6水平.
- 复星降低了TNF和IL-6水平,无论是在基底和过氧化物诱导的条件下.
- 复星增强了IL-10的产生,主要是在最年轻的年龄组.
- 不管ML385.5对Nrf2通路的抑制,这些效应都被观察到.
结论:
- 复星显示出与衰老相关的显著抗氧化和抗炎作用.
- Nrf2通路与白醇减轻氧化应激和炎症的能力有关.
- 复星可能是一个有价值的治疗剂,用于预防与年龄有关的炎症状况,其有效性可能取决于年龄.
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