College of Pharmacy, Fujian Key Laboratory of Chinese Materia Medica, Fujian University of Traditional Chinese Medicine, Fuzhou 350100, China.
NICM Health Research Institute, Western Sydney University, Westmead, NSW 2145, Australia.
Biomed Pharmacother. 2023 Sep;165:115279. doi: 10.1016/j.biopha.2023.115279. Epub 2023 Aug 4.
Metabolic associated fatty liver disease (MAFLD) is the most common chronic liver disease that has no viable treatment. Curcumin (Cur) and resveratrol (Res) are two natural products that have been studied for their potential to ameliorate MAFLD. However, while these compounds have been investigated individually, their combined use and the potential for a synergistic or augmented effect remain unexplored. This study aims to investigate the effect of curcumin (Cur) and resveratrol (Res) as a potential combination therapy on MAFLD. Cur, Res and Cur+Res were tested in palmitic acid (PA)-induced-HepG2 cells. MAFLD model was established using Goto-Kakizaki rats. The animals were treated with vehicle control (model group), Cur (150 mg/kg), Res (150 mg/kg), Cur+Res (150 mg/kg, 8:2, w/w), or metformin (Met, positive control, 400 mg/kg/day) via oral gavage for 4 weeks. Wistar rats were used as the control group. Network pharmacology was conducted to elucidate the molecular actions of Cur and Res, followed by q-PCR and immunoblotting in vivo. Cur+Res exhibited synergistic effects in reducing triglyceride, total cholesterol and lipid accumulation in PA-induced HepG2 cells. The combination also markedly attenuated hepatic steatosis in the MAFLD rats. Network pharmacology illustrated that the interaction of Cur and Res was associated with the modulation of multiple molecular targets associated with the PI3K/AKT/mTOR and HIF-1 signaling pathways. Experimental results confirmed that Cur+Res nomalised the gene targets and protein expressions in the PI3K/AKT/mTOR and HIF-1 signaling pathways, including PI3K, mTOR, STAT-3, HIF-1α, and VEGF. The present study demonstrated an advanced effect of Cur and Res in combination to attenuate MAFLD, and the mechanism is at least partly associated with the modulation of the PI3K/AKT/mTOR and HIF-1 signaling pathways.
代谢相关脂肪性肝病(MAFLD)是最常见的慢性肝病,目前尚无可行的治疗方法。姜黄素(Cur)和白藜芦醇(Res)是两种已被研究用于改善 MAFLD 的天然产物。然而,虽然这些化合物已被单独研究,但它们的联合使用以及协同或增强作用的潜力仍未得到探索。本研究旨在探讨姜黄素(Cur)和白藜芦醇(Res)作为一种潜在联合治疗方法对 MAFLD 的影响。在棕榈酸(PA)诱导的 HepG2 细胞中测试 Cur、Res 和 Cur+Res。使用 Goto-Kakizaki 大鼠建立 MAFLD 模型。动物通过口服灌胃用载体对照(模型组)、Cur(150mg/kg)、Res(150mg/kg)、Cur+Res(150mg/kg,8:2,w/w)或二甲双胍(Met,阳性对照,400mg/kg/天)治疗 4 周。Wistar 大鼠作为对照组。进行网络药理学以阐明 Cur 和 Res 的分子作用,然后在体内进行 q-PCR 和免疫印迹。Cur+Res 表现出协同作用,可降低 PA 诱导的 HepG2 细胞中的甘油三酯、总胆固醇和脂质积累。该组合还显著减轻了 MAFLD 大鼠的肝脂肪变性。网络药理学表明,Cur 和 Res 的相互作用与调节与 PI3K/AKT/mTOR 和 HIF-1 信号通路相关的多个分子靶标有关。实验结果证实,Cur+Res 使 PI3K/AKT/mTOR 和 HIF-1 信号通路中的基因靶标和蛋白表达正常化,包括 PI3K、mTOR、STAT-3、HIF-1α 和 VEGF。本研究表明 Cur 和 Res 的联合使用具有改善 MAFLD 的增效作用,其机制至少部分与调节 PI3K/AKT/mTOR 和 HIF-1 信号通路有关。
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