中国组织工程研究 ›› 2025, Vol. 29 ›› Issue (6): 1144-1151.doi: 10.12307/2025.300

• 组织工程骨及软骨材料 tissue-engineered bone and cartilage materials • 上一篇    下一篇

肉苁蓉苷A通过JNK/MAPK通路抑制破骨细胞活性

李岳尧1,张  民2,杨家驹2   

  1. 1山西中医药大学,山西省晋中市  030619;2山西医科大学第二医院,山西省太原市  030001


  • 收稿日期:2024-01-29 接受日期:2024-03-06 出版日期:2025-02-28 发布日期:2024-06-20
  • 通讯作者: 张民,博士,主任医师,山西医科大学第二医院,山西省太原市 030001
  • 作者简介:李岳尧,男,1999年生,山东省招远市人,汉族,山西中医药大学在读硕士,主要从事骨质疏松与骨关节疾病的研究。
  • 基金资助:
    山西省中医药管理局省中医药科研课题,项目负责人:张民

Cistanoside A mediates p38/MAPK pathway to inhibit osteoclast activity 

Li Yueyao1, Zhang Min2, Yang Jiaju2   

  1. 1Shanxi University of Chinese Medicine, Jinzhong 030619, Shanxi Province, China; 2Second Hospital of Shanxi University, Taiyuan 030001, Shanxi Province, China
  • Received:2024-01-29 Accepted:2024-03-06 Online:2025-02-28 Published:2024-06-20
  • Contact: Zhang Min, MD, Chief physician, Second Hospital of Shanxi University, Taiyuan 030001, Shanxi Province, China
  • About author:Li Yueyao, Master candidate, Shanxi University of Chinese Medicine, Jinzhong 030619, Shanxi Province, China
  • Supported by:
    Chinese Medicine Scientific Research Project of Shanxi Provincial Administration of Traditional Chinese Medicine (to ZM) 

摘要:




文题释义:
肉苁蓉苷A(Cistanoside A,CisA):是从肉苁蓉中提取的一类苯乙醇苷类化合物,具有抗炎、抗氧化和抗骨质疏松的生物活性。
丝裂原活化蛋白激酶(mitogen-activated protein kinase,MAPK)通路:是细胞中的一条重要的信息传递链条,能够通过促进细胞凋亡和细胞增殖以及调节各种细胞因子的功能参与神经元发育、破骨细胞分化、细胞迁移和癌症等过程。

背景:研究证实肉苁蓉苷A具有抗炎、抗氧化和抗骨质疏松的作用,但其对破骨细胞分化和功能的影响及潜在的机制尚缺少研究。
目的:探讨肉苁蓉苷A对核因子κB受体活化因子配体诱导的体外破骨细胞分化和骨吸收功能的影响及作用机制。 
方法:提取与培养4-6周龄C57BL/6小鼠股骨和胫骨中的骨髓巨噬细胞,采用CCK-8毒性实验检验不同浓度的肉苁蓉苷A(5,10,20,40,80,160 μmol/L)对骨髓巨噬细胞的毒性,抗酒石酸酸性磷酸酶染色观察不同浓度的肉苁蓉苷A干预破骨细胞的分化情况,确定药物的有效干预浓度。将实验分为阳性对照组、肉苁蓉苷A低、中、高剂量组(40,80,160 μmol/L),细胞贴壁后各组均加入50 ng/mL的核因子κB受体活化因子配体诱导破骨细胞分化,肉苁蓉苷A低、中、高剂量组分别加入相应剂量的肉苁蓉苷A进行干预。采用肌动蛋白环鬼笔环肽染色和DAPI染色检测肉苁蓉苷A对破骨细胞形成的影响;骨磨片甲苯胺蓝染色观察肉苁蓉苷A对破骨细胞骨吸收功能的影响;Western blot检测JNK/MAPK通路上下游蛋白的表达情况;RT-qPCR检测抗酒石酸酸性磷酸酶、DC-STAMP、Nfatc-1、Ctsk和c-Fos等破骨细胞分化和骨吸收功能相关基因的表达情况。
结果与结论:①抗酒石酸酸性磷酸酶染色、肌动蛋白环染色和骨陷窝甲苯胺蓝染色结果表明,与阳性对照组相比,肉苁蓉苷A对核因子κB受体活化因子配体诱导的体外破骨细胞的分化和骨吸收功能具有呈剂量依赖性的显著抑制作用;②RT-qPCR结果表明,与阳性对照组相比,肉苁蓉苷A高剂量组和低剂量组的抗酒石酸酸性磷酸酶、DC-STAMP、Nfatc-1、Ctsk和c-Fos等的mRNA表达量均显著降低,且肉苁蓉苷A高剂量组的降低效果更加显著;③Western blot结果显示,高剂量肉苁蓉苷A干预10,20,30和60 min时显著抑制p-JNK蛋白的表达;与阳性对照组相比,肉苁蓉苷A低、中、高剂量组显著抑制Nfatc1和c-Fos蛋白的表达,且呈剂量依赖性;④结果说明,肉苁蓉苷A能够通过降低p-JNK蛋白水平,抑制MAPK通路的激活和破骨细胞关键基因的表达,进而抑制破骨细胞的形成和骨吸收功能。
http://orcid.org/0009-0001-3172-3776(李岳尧)

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松;组织工程

关键词: 肉苁蓉苷A, 破骨细胞, MAPK, JNK, RANKL, RANK, 骨质疏松, 苯乙醇苷

Abstract:
BACKGROUND:
Cistanoside A has the effects of anti-inflammation, antioxidation, antioxidation, reducing renal damage and anti-osteoporosis, but its effect on osteoclast differentiation, function and its underlying molecular mechanisms remain unclear.
OBJECTIVE: To investigate the effect of Cistanoside A on osteoclast differentiation and bone resorption induced by receptor activator of nuclear factor kappa-B ligand (RANKL) in vitro and its mechanism.
METHODS: Bone marrow macrophages were obtained from the femur and tibia of 4-6-week-old C57BL/6 mice. The cytotoxic effect of Cistanoside A (5, 10, 20, 40, 80, and 160 μmol/L) on bone marrow macrophage viability was examined using the cell counting kit-8 assay kit. Tartrate-resistant acid phosphatase staining was performed to observe the effect of different concentrations of Cistanoside A on osteoblast differentiation and its effective intervention concentration was determined. There was positive control group, Cistanoside A low, medium, and high dose groups (40, 80, and 160 μmol/L). After cell attachment, 50 ng/mL RANKL was added to induce osteoblast differentiation, and the corresponding dose of Cistanoside A was added to the Cistanoside A low, medium, and high dose groups, respectively. F-actin ring and 2-(4-Amidinophenyl)-6-indolecarbamidine dihydrochloride staining were performed to detect the effects of Cistanoside A on the formation of osteoclasts. Toluidine blue staining of bone abrasion slices was used to observe the effects of Cistanoside A on bone resorption function of osteoclasts. The expression of upstream and downstream proteins of the JNK/MAPK pathway was detected by Western blot. The expression of genes related to osteoclast differentiation and bone resorption function such as tartrate-resistant acid phosphatase, DC-STAMP, Nfatc-1, Ctsk and c-Fos was detected by RT-qPCR. 
RESULTS AND CONCLUSION: Tartrate-resistant acid phosphatase staining, F-actin ring staining and resorption pit assay showed that Cistanoside A significantly inhibited RANKL-induced osteoclast differentiation and bone resorption in a dose-dependent manner compared with the positive control group. The results of RT-qPCR showed that compared with the positive control group, both high and low dose groups of Cistanoside A could significantly downregulate the mRNA expression of tartrate-resistant acid phosphatase, DC-STAMP, Nfatc-1, Ctsk and c-Fos in a dose‐dependent manner. The results of western blot assay showed that the high dose group of Cistanoside A significantly inhibited the expression of p-JNK protein at 10, 20, 30 and 60 minutes of intervention; compared with the positive control group, Cistanoside A significantly inhibited the expression of Nfatc1 and c-Fos proteins in a dose-dependent manner. To conclude, Cistanoside A could inhibit the formation and bone resorption of osteoclasts by reducing the level of p-JNK protein, inhibiting the activation of MAPK pathway and the expression of key genes in osteoclasts.

Key words: Cistanoside A, osteoclast, MAPK, JNK, RANKL, RANK, osteoporosis, phenylethanoid glycosides

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