Nuciferine inhibits osteoclast formation through suppressing glycolysis metabolic programming and ROS production.

The Kaohsiung journal of medical sciences Pub Date : 2024-12-01 Epub Date: 2024-11-16 DOI:10.1002/kjm2.12906
Wen-Hui Guo, Guan-Qi Zhen, Feng Wu, Yun-Peng Lv, Jing-Long Yan, Jia-Ning Zu, Cheng-Chao Song
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Abstract

Nuciferine (NCF) is a bioactive compound from lotus leaves and has been proven to prevent osteoclastogenesis and ovariectomy-induced osteoporosis by our previous research. However, the underlying mechanism is still unclear. In this research, Raw264.7 cells were induced into osteoclast with or without NCF. CCK-8 and Edu assays were performed to detect the effects of 30 μM NCF on cell viability and proliferation. TRAP staining and bone resorption assays were performed to observe the role of NCF in osteoclastogenesis and bone resorption. RT-PCR and Western blot were performed to detect the effects of NCF on osteoclast-related genes, glycolysis-related genes, and reactive oxygen species (ROS)-related genes. Seahorse assays, lactate concentration and glucose consumption were performed to observe cell metabolism change. DCFH-DA fluorescent probe was used to detect ROS level. In this work, 30 μM NCF could not influence cell viability and cell proliferation. Osteoclast differentiation could be inhibited by 30 μM NCF. Bone resorption assay could also observe that bone resorption ability was successfully inhibited by 30 μM NCF. In seahorse assay, we discovered that NCF could decrease extracellular acid rate and increase oxygen consumption. RT-PCR and Western blot results showed that NCF could decrease the expression of hexokinase2, pyruvate kinase muscle 2, and lactate dehydrogenase A and that NCF could also weaken the concentration of lactate. However, pyruvate kinase muscle 2 activator (GC69716) and lactate addition could promote osteoclastogenesis and bone resorption and promote the expression of c-Fos and nuclear factor of activated T cells c1. Besides, NCF could also inhibit the production of ROS. In conclusion, NCF might inhibit osteoclast formation through inhibiting glycolysis metabolism and ROS production.

Nuciferine 可通过抑制糖酵解代谢程序和 ROS 的产生来抑制破骨细胞的形成。
荷叶碱(NCF)是从荷叶中提取的一种生物活性化合物,我们之前的研究已证明它能防止破骨细胞生成和卵巢切除术诱发的骨质疏松症。然而,其潜在机制仍不清楚。本研究使用或不使用 NCF 将 Raw264.7 细胞诱导成破骨细胞。采用 CCK-8 和 Edu 试验检测 30 μM NCF 对细胞活力和增殖的影响。通过TRAP染色和骨吸收实验观察NCF在破骨细胞生成和骨吸收中的作用。通过 RT-PCR 和 Western 印迹检测 NCF 对破骨细胞相关基因、糖酵解相关基因和活性氧(ROS)相关基因的影响。通过海马试验、乳酸浓度和葡萄糖消耗来观察细胞代谢的变化。DCFH-DA 荧光探针用于检测 ROS 水平。在这项研究中,30 μM NCF 不会影响细胞活力和细胞增殖。30 μM NCF可抑制破骨细胞的分化。骨吸收试验也表明,30 μM NCF 成功抑制了骨吸收能力。在海马试验中,我们发现NCF能降低细胞外酸速率并增加耗氧量。RT-PCR和Western blot结果显示,NCF能降低己糖激酶2、丙酮酸激酶肌2和乳酸脱氢酶A的表达,并能降低乳酸的浓度。然而,丙酮酸激酶肌 2 激活剂(GC69716)和乳酸盐的添加可促进破骨细胞生成和骨吸收,并促进 c-Fos 和活化 T 细胞核因子 c1 的表达。此外,NCF 还能抑制 ROS 的产生。总之,NCF 可通过抑制糖酵解代谢和 ROS 的产生来抑制破骨细胞的形成。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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