Petagine Lucy, Zariwala Mohammed G, Somavarapu Satyanarayana, Chan Stefanie Ho Yi, Kaya Evrim A, Patel Vinood B
Centre for Nutraceuticals, School of Life Sciences, University of Westminster, 115 New Cavendish Street, London, W1W 6UW, UK.
Department of Pharmaceutics, UCL School of Pharmacy, London, UK.
Sci Rep. 2025 Mar 5;15(1):7752. doi: 10.1038/s41598-025-91139-0.
Alcohol-related liver disease (ARLD) is a global health issue causing significant morbidity and mortality, due to lack of suitable therapeutic options. ARLD induces a spectrum of biochemical and cellular alterations, including chronic oxidative stress, mitochondrial dysfunction, and cell death, resulting in hepatic injury. Natural antioxidant compounds such as curcumin have generated interest in ARLD due to their ability to scavenge reactive oxygen species (ROS), however, therapy using these compounds is limited due to poor bioavailability and stability. Therefore, the aim of this study was to assess the antioxidant potential of free antioxidants and curcumin entrapped formulations against oxidative damage in an ARLD cell model. HepG2 (VL-17A) cells were treated with varying concentrations of alcohol (from 200 to 350 mM) and parameters of oxidative stress and mitochondrial function were assessed over 72 h. Data indicated 350 mM of ethanol led to a significant decrease in cell viability at 72 h, and a significant increase in ROS at 30 min. A substantial number of cells were in late apoptosis at 72 h, and a reduction in the mitochondrial membrane potential was also found. Pre-treatment with curcumin nanoformulations increased viability, as well as, reducing ROS at 2 h, 48 h and 72 h. In summary, antioxidants and entrapped nanoformulations of curcumin were able to ameliorate reduced cell viability and increased ROS caused by ethanol treatment. This demonstrates their potential at mitigating oxidative damage and warrants further investigation to evaluate their efficacy for ARLD therapy.
酒精性肝病(ARLD)是一个全球性的健康问题,由于缺乏合适的治疗选择,导致了很高的发病率和死亡率。ARLD会引发一系列生化和细胞变化,包括慢性氧化应激、线粒体功能障碍和细胞死亡,从而导致肝损伤。姜黄素等天然抗氧化化合物因其清除活性氧(ROS)的能力而引起了人们对ARLD的关注,然而,由于生物利用度和稳定性差,使用这些化合物进行治疗受到限制。因此,本研究的目的是评估游离抗氧化剂和包载姜黄素制剂在ARLD细胞模型中对抗氧化损伤的抗氧化潜力。用不同浓度的酒精(200至350 mM)处理HepG2(VL-17A)细胞,并在72小时内评估氧化应激和线粒体功能参数。数据表明,350 mM乙醇在72小时时导致细胞活力显著下降,在30分钟时ROS显著增加。在72小时时,大量细胞处于晚期凋亡状态,同时还发现线粒体膜电位降低。用姜黄素纳米制剂预处理可提高细胞活力,并在2小时、48小时和72小时时降低ROS水平。总之,抗氧化剂和包载姜黄素的纳米制剂能够改善乙醇处理导致的细胞活力降低和ROS增加。这证明了它们在减轻氧化损伤方面的潜力,值得进一步研究以评估它们在ARLD治疗中的疗效。
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