恒古骨伤愈合剂调节 AGEs-RAGE 通路抑制铁死亡改善膝骨关节炎
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1.昆明医科大学康复学院,昆明 650500;2.云南省医疗器械检验研究院,昆明 650000;3.红河哈尼族彝族自治州第三人民医院,云南 个旧 661000

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R684. 3

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Osteoking regulates AGEs-RAGE pathway to inhibit ferroptosis and improve knee osteoarthritis
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1. Rehabilitation College of Kunming Medical University, Kunming 650500, China. 2. Yunnan Medical Device Inspection and Research Institute, Kunming 650000. 3. the Third People’s Hospital of Honghe Hani and Yi Autonomous Prefecture, Gejiu 661000

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    摘要:

    目的 探究恒古骨伤愈合剂(OK)调节铁死亡,改善膝骨关节炎(KOA)的机制。 方法 通过网络药理学分析 OK、KOA 和铁死亡相关的靶基因,进行 KEGG 通路富集分析。 采用 10 mg / L 的白细胞介素(IL)-1β 诱导人 C28 / I2 细胞模拟关节炎体外模型,分为对照(Control)组、模型( IL-1β)组、恒古骨伤愈合剂(IL-1β+OK)组、晚期糖基化终末产物(IL-1β+OK+AGEs)组、铁死亡抑制剂(IL-1β+Fer-1)组、联合治疗(IL-1β+OK+Fer-1)组。 ELISA 试剂盒检测细胞上清液炎性因子 IL-6 和氧化应激因子丙二醛(MDA)、超氧化物歧化酶(SOD)、谷胱甘肽(GSH);细胞专用 Fe2+试剂盒检测各组细胞的含量;Western blot 检测细胞外基质降解蛋白(MMP13)、软骨基质合成蛋白 2(COLA2)、谷胱甘肽过氧化物酶 4(GPX4)、溶质载体家族 7 成员( SLC)蛋白;体内实验使用内侧半月板失稳术构建大鼠 KOA 模型,设置假手术(sham)组、造模(DMM)组和给药(OK)组,按照分组情况灌胃相应的药物 8 周;用热板仪、压力测痛仪分别记录各组大鼠的缩爪反应时间(s)和所承受的砝码重量(g);ELISA 试剂盒检测大鼠血清炎性因子肿瘤坏死因子 α(TNF-α)、血管内皮细胞生长因子(VEGF)、IL-6 和氧化应激因子 MDA、SOD、GSH、活性氧(ROS);伊红-苏木精、番红-固绿和甲苯胺蓝染色大鼠膝关节,并依 OARSI 标准对软骨组织退变程度评分;Western blot 检测大鼠细骨关节软骨 MMP13、COLA2、GPX4、SLC、晚期糖基化终末产物(AGEs)及其受体(RAGE)蛋白的表达。 结果 网络药理学分析发现 AGEsRAGE 信号通路等可能是 OK 作用于 KOA 和铁死亡的关键通路。 细胞实验中,IL-1β 组的 MDA、IL-6 和 Fe2+升高(P<0. 05,P<0. 01),GSH 和 SOD 水平降低( P<0. 05,P<0. 01);MMP13 蛋白水平升高( P< 0. 05),而COLA2、GPX4 和 SLC 蛋白水平降低(P<0. 01)。 OK 干预逆转以上结果,而 AGEs 消弱 OK 的作用。 此外,OK进一步增强铁死亡抑制剂 Fer-1 对 C28 / I2 细胞的抗炎、抗氧化应激,改善代谢平衡的作用。 动物实验中,DMM 组大鼠压痛、热痛值和 OARSI 评分显著升高(P<0. 01,P<0. 001),膝关节软骨面和软骨基质损伤。 与DMM 组比较,OK 显著降低大鼠的压痛、热痛和 OARSI 评分值(P<0. 01),缓解膝关节软骨面和软骨基质损伤;OK 组关节软骨 COLA2、GPX4、SLC 蛋白的表达显著增加(P<0. 05),而 MMP13、AGEs 及受体 RAGE 的表 达降低(P<0. 05,P<0. 01);OK 组血清 TNF-α、VEGF、IL-6、MDA、ROS 显著降低(P<0. 01),SOD 和 GSH 升高(P<0. 01)。 结论 OK 能够通过 AGEs-RAGE 轴抑制铁死亡,保护关节软骨,进而发挥抗关节炎的作用。

    Abstract:

    Objective To explore the mechanism by which osteoking ( OK) regulates ferroptosis and improves knee osteoarthritis (KOA). Methods We performed Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis by analyzing target genes related to OK, KOA, and ferroptosis through network pharmacology. Human C28 / I2 cells were used to simulate an in vitro arthritis model. Cells were divided into Control, model (interleukin ( IL)-1β 10 mg / L), IL-1β + OK, IL-1β + OK+ advanced glycation end products ( AGEs), IL-1β + Ferrostatin-1( Fer-1) and IL-1β + OK + Fer-1 groups. The inflammatory factor IL-6 and oxidative stress factors malondialdehyde (MDA), superoxide dismutase ( SOD), and glutathione ( GSH) in the cell supernatant were detected by enzyme-linked immunosorbent assay (ELISA). Fe 2+levels in each group were detected using cell-specific assay kits. Matrix metalloproteinase ( MMP13 ), cartilage matrix synthesis protein 2 ( COLA2 ), glutathione peroxidase 4 (GPX4), and solute carrier family 7 (SLC) proteins were detected by western blot. A rat model of KOA was created by medial meniscus instability surgery. Rats were divided into sham surgery, model and osteoking groups and treated with the corresponding drugs orally for 8 weeks. Paw-contraction reaction time and weight were measured in each group using a hot plate apparatus and pressure pain gauge, respectively. Serum inflammatory factors tumor necrosis factor (TNF)-α, vascular endothelial growth factor (VEGF), IL-6, and the oxidative stress factors MDA,SOD, GSH, and reactive oxygen species (ROS) were detected by ELISA. Knee joints were stained with hematoxylin /eosin, safranin turquoise, and toluidine blue, and the degree of cartilage tissue degeneration was scored according to the OARSI standard. MMP13, COLA2, GPX4, SLC, AGEs, and their receptor (RAGE) proteins were detected in rat cartilage by Western blot. Results Network pharmacology analysis identified the AGEs-RAGE and other signaling pathways as potential key pathways by which OK may act on KOA and ferroptosis. In vitro, MDA, IL-6, and Fe2+levels increased in the IL-1 β group ( P<0. 05,P<0. 01), while GSH and SOD levels decreased ( P<0. 05,P<0. 01). MMP13 levels increased ( P<0. 05), while COLA2, GPX4, and SLC levels decreased ( P<0. 01). OK intervention reversed the above result and AGEs weakened the effect of OK, with significant effects on the relevant indicators. OK also enhanced the anti-inflammatory and antioxidant stress effects of the ferroptosis inhibitor Fer-1 on C28 / I2 cells, and improved the metabolic balance. DMM group rats showed significantly increased tenderness,thermal pain, and OARSI score (P<0. 01,P<0. 001), and damage to the cartilage surface and matrix of the knee joint. Compared with the DMM group, OK significantly reduced tenderness, thermal pain, and OARSI scores (P<0. 01), and alleviated damage to the cartilage surface and matrix of the knee joint. COLA2, GPX4, and SLC levels in the articular cartilage were significantly increased in the OK group compared with the DMM group ( P<0. 05), while MMP13, AGEs, and RAGE were decreased ( P<0. 05,P<0. 01). Serum levels of TNF-α, VEGF, IL-6,MDA, and ROS were significantly reduced in the OK group (P<0. 01), while SOD and GSH were increased (P<0. 01). Conclusions OK can inhibit ferroptosis and protect articular cartilage via the AGEs-RAGE axis, thereby exerting anti-arthritis effects.

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王佩锦,李 蓉,李进涛,角建林,蔡 绮,郑 红.恒古骨伤愈合剂调节 AGEs-RAGE 通路抑制铁死亡改善膝骨关节炎[J].中国比较医学杂志,2026,35(2):30~41.

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  • 收稿日期:2025-06-18
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  • 在线发布日期: 2025-05-06
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