Mefenamic Acid-Upregulated Nrf2/SQSTM1 Protects Hepatocytes against Oxidative Stress-Induced Cell Damage

被引:2
作者
Lee, Wonseok
Mun, Yewon
Lee, Kang-Yo
Park, Jung-Min
Chang, Tong-Shin
Choi, You-Jin [1 ]
Lee, Byung-Hoon [1 ]
机构
[1] Seoul Natl Univ, Coll Pharm, Seoul 08826, South Korea
基金
新加坡国家研究基金会;
关键词
mefenamic acid; SQSTM1; Nrf2; pathway; oxidative stress; cytoprotective effect; TRANSCRIPTION FACTOR NRF2; SELECTIVE AUTOPHAGY; KEAP1-NRF2; PATHWAY; P62; HEPATOTOXICITY; APOPTOSIS; DISEASE; INJURY; GENE; ROS;
D O I
10.3390/toxics11090735
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Mefenamic acid (MFA) is a commonly prescribed non-steroidal anti-inflammatory drug (NSAID) with anti-inflammatory and analgesic properties. MFA is known to have potent antioxidant properties and a neuroprotective effect against oxidative stress. However, its impact on the liver is unclear. This study aimed to elucidate the antioxidative effects of MFA and their underlying mechanisms. We observed that MFA treatment upregulated the nuclear factor erythroid 2-related factor 2 (Nrf2) pathway. Treatment with various anthranilic acid derivative-class NSAIDs, including MFA, increased the expression of sequestosome 1 (SQSTM1) in HepG2 cells. MFA disrupted the interaction between Kelch-like ECH-associated protein 1 (Keap1) and Nrf2, activating the Nrf2 signaling pathway. SQTM1 knockdown experiments revealed that the effect of MFA on the Nrf2 pathway was masked in the absence of SQSTM1. To assess the cytoprotective effect of MFA, we employed tert-Butyl hydroperoxide (tBHP) as a ROS inducer. Notably, MFA exhibited a protective effect against tBHP-induced cytotoxicity in HepG2 cells. This cytoprotective effect was abolished when SQSTM1 was knocked down, suggesting the involvement of SQSTM1 in mediating the protective effect of MFA against tBHP-induced toxicity. In conclusion, this study demonstrated that MFA exhibits cytoprotective effects by upregulating SQSTM1 and activating the Nrf2 pathway. These findings improve our understanding of the pharmacological actions of MFA and highlight its potential as a therapeutic agent for oxidative stress-related conditions.
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页数:13
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