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三峡大学中医医院/宜昌市中医医院骨伤科,湖北 宜昌 443000
何鹏,E-mail:495166595@qq.com
纸质出版日期:2024-09-25,
收稿日期:2023-11-21,
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何鹏,李秀成,何争珍等.鹰嘴豆素A对骨关节炎的体外作用机制研究[J].局解手术学杂志,2024,33(09):753-758.
HE Peng,LI Xiu-cheng,HE Zheng-zhen,et al.Study on mechanism of action of biochanin A on osteoarthritis in vitro[J].JOURNAL OF REGIONAL ANATOMY AND OPERATIVE SURGERY,2024,33(09):753-758.
何鹏,李秀成,何争珍等.鹰嘴豆素A对骨关节炎的体外作用机制研究[J].局解手术学杂志,2024,33(09):753-758. DOI: 10.11659/jjssx.11E023093.
HE Peng,LI Xiu-cheng,HE Zheng-zhen,et al.Study on mechanism of action of biochanin A on osteoarthritis in vitro[J].JOURNAL OF REGIONAL ANATOMY AND OPERATIVE SURGERY,2024,33(09):753-758. DOI: 10.11659/jjssx.11E023093.
目的
2
通过体外实验探讨鹰嘴豆素A(BCA)对骨关节炎的作用机制。
方法
2
提取大鼠原代软骨细胞进行培养,随后将其分为对照组(不加诱导剂及干扰剂)、模型组[10 ng/mL白细胞介素-1β(IL-1β)诱导]和BCA组(10 ng/mL IL-1β诱导+0、3、6、12、24、48 μmol/L BCA干预)。采用四甲基偶氮唑蓝(MTT)法进行细胞活性评估,衰老β-半乳糖苷酶(SA-β-gal)染色观察细胞衰老情况,酶联免疫吸附(ELISA)法检测细胞内炎症因子和氧化应激指标,蛋白免疫印迹法检测相关蛋白水平,运用分子对接技术验证BCA与Nrf2之间的亲和力。
结果
2
MTT法筛选BCA浓度后,选择6、12、24 μmol/L BCA进行后续实验。与对照组相比,模型组软骨细胞活性及过氧化氢酶(CAT)、超氧化物歧化酶(SOD)活性明显减弱(
P
<
0.05),SA-β-gal阳性细胞数显著增加,肿瘤坏死因子-α(TNF-α)、白细胞介素-6(IL-6)、丙二醛(MDA)表达水平明显升高(
P
<
0.05),细胞内Ⅱ型胶原蛋白(COL2A1)、蛋白多糖(ACAN)表达水平明显降低(
P
<
0.05)。与模型组相比,BCA组上述情况均出现明显逆转(
P
<
0.05)。此外,BCA可以显著减弱核因子κB抑制因子α(IκB-α)的降解和NF-κBp65的核转位,并促进Nrf2在细胞核中的表达和人血红素氧化酶1(HO-1)在全细胞中的表达(
P
<
0.05)。分子对接研究结果则进一步证实BCA与Nrf2具有极高的亲和力。
结论
2
BCA可通过调控Nrf2/NF-κB信号通路体外抑制骨关节炎软骨细胞氧化应激及炎症反应,缓解关节损伤。
Objective
2
To investigate the mechanism of action of biochanin A (BCA) on osteoarthritis through in vitro experiments.
Methods
2
Primary rat chondrocytes were extracted and cultured,and then divided into the control group(without inducer or interferant),the model group [10 ng/mL interleukin-1β (IL-1β) induction],and the BCA group (10 ng/mL IL-1β induction+0,3,6,12,24,48 μmol/L BCA intervention).Cell activity was detected by methyl thiazolyl tetrazolium (MTT) method.Senescence-associated β-galactosidase (SA-β-gal) staining was used to observe cell senescence.Intracellular inflammatory factors and oxidative stress indexes were detected by enzyme-linked immunosorbent assay (ELISA),the levels of related proteins were detected by Western blot,and the affinity between BCA and Nrf2 was verified by molecular docking technology.
Results
2
After screening the concentration of BCA with MTT,6,12 and 24 μmol/L BCA were selected for subsequent experiments.Compared with the control group,the chondrocyte activity and the activities of catalase (CAT) and superoxide dismutase (SOD) in the model group were significantly decreased (
P
<
0.05).The number of SA-β-gal positive cells and expression levels of tumor necrosis factor-α (TNF-α),interleukin-6 (IL-6),and malondialdehyde (MDA) increased significantly (
P
<
0.05).The expression levels of type II collagen (COL2A1) and aggrecan (ACAN) were significantly decreased (
P
<
0.05).Compared with the model group,the above conditions were significantly reversed in the BCA group (
P
<
0.05).In addition,BCA could significantly reduce the degradation of inhibitor kappa B alpha (IκB-α) and nuclear translocation of NF-κBp65,and promote the expression of Nrf2 in the nucleus and the expression of human heme oxygenase-1 (HO-1) in whole cells (
P
<
0.05).The results of molecular docking further confirmed that BCA had the highest affinity with Nrf2.
Conclusion
2
BCA can inhibit oxidative stress and inflammation of osteoarthritis chondrocytes by regulating Nrf2/NF-κB signaling pathway in vitro,and alleviate joint injury.
鹰嘴豆素A核因子-E2相关因子2NF-κB信号通路氧化应激炎症反应
biochanin Anuclear factor erythroid derived 2-like 2NF-κB signaling pathwayoxidative stressinflammatory response
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