Ginseng Saponin Rb1 Attenuates Cigarette Smoke Exposure-Induced Inflammation, Apoptosis and Oxidative Stress via Activating Nrf2 and Inhibiting NF-κB Signaling Pathways

被引:5
|
作者
Li, Zhizheng [1 ]
Li, Li [1 ]
Lv, Xiaohui [1 ]
Hu, Yingqian [1 ]
Cui, Kun [2 ]
机构
[1] Tangshan Gongren Hosp, Dept Resp & Crit Care Med, Tangshan, Peoples R China
[2] Tangshan Gongren Hosp, Resp Med, Tangshan, Peoples R China
来源
INTERNATIONAL JOURNAL OF CHRONIC OBSTRUCTIVE PULMONARY DISEASE | 2023年 / 18卷
关键词
ginseng saponin Rb1; cigarette smoking exposure; inflammation; oxidative stress; NF-kappa B; Nrf2;
D O I
10.2147/COPD.S418421
中图分类号
R56 [呼吸系及胸部疾病];
学科分类号
摘要
Objective: Cigarette smoke exposure is one of the major risk factors for the development of chronic obstructive pulmonary disease (COPD). Ginseng saponin Rb1 (Rb1) is a natural extract from ginseng root with anti-inflammatory and anti-oxidant effects. However, the underlying mechanism of the Rb1 in COPD remains unknown. Therefore, we sought to explore the role of Rb1 in cigarette smokeinduced damage and to reveal the potential mechanism. Methods: The cell viability and lactose dehydrogenase (LDH) activity were analyzed using cell counting kit-8 (CCK-8) and LDH release assays. We further investigated the inflammation, apoptosis and oxidative stress markers and analyzed the nuclear factor-kappa B (NF-kappa B) and nuclear factor erythroid-2-related factor 2 (Nrf2) pathways in BEAS-2B cells and COPD rat model following cigarette smoke extract (CSE) exposure. Results: Our results showed that CSE promoted inflammation, apoptosis and oxidative stress in BEAS-2B cells. Rb1 suppressed the inflammatory response by inhibiting expression of pro-inflammatory cytokines such as tumor necrosis factor-a (TNF-alpha), interleukin-6 (IL-6) and IL-1 beta and inhibiting the NF-kappa B signaling pathway. Rb1 possessed the ability to hinder cell apoptosis induced by CSE. In addition, Rb1 concurrently reduced CSE-induced oxidative reactions and promoted Nrf2 translocation to nucleus. For in vivo study, Rb1 treatment alleviated CSE-induced lung injury, apoptosis, reactive oxygen species (ROS) release and inflammatory reactions. Also, Rb1 treatment activated Nrf2 signaling and inactivated NF-kappa B signaling in COPD rats. Conclusion: Rb1 attenuates CSE-induced inflammation, apoptosis and oxidative stress by suppressing NF-kappa B and activating Nrf2 signaling pathways, which provides novel insights into the mechanism underlying CSE-induced COPD.
引用
收藏
页码:1883 / 1897
页数:15
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