中国组织工程研究 ›› 2024, Vol. 28 ›› Issue (34): 5458-5466.doi: 10.12307/2024.808

• 组织构建实验造模 experimental modeling in tissue construction • 上一篇    下一篇

斯赤列提取物抑制骨关节炎模型大鼠的异常血管新生

江自鲜1,陆玉春1,李朝梦1,郑梅梅2,李秀芳1,王文静1   

  1. 1云南中医药大学,云南省昆明市  650500;2南京宁丹新药技术有限公司,江苏省南京市  210000
  • 收稿日期:2023-11-20 接受日期:2023-12-27 出版日期:2024-12-08 发布日期:2024-03-14
  • 通讯作者: 王文静,博士,教授,博士生导师,云南中医药大学,云南省昆明市 650500 李秀芳,博士,教授,博士生导师,云南中医药大学,云南省昆明市 650500
  • 作者简介:江自鲜,女,云南省保山市人,云南中医药大学在读硕士,主要从事天然产物提取分离及应用研究。
  • 基金资助:
    国家自然科学基金资助项目(82160744),项目负责人:王文静;云南省宋少江专家工作站(202305AF150030),项目负责人:王文静

Extracts of Sambucus adnata Wall. inhibit abnormal angiogenesis in a rat model of osteoarthritis

Jiang Zixian1, Lu Yuchun1, Li Chaomeng1, Zheng Meimei2, Li Xiufang1, Wang Wenjing1   

  1. 1Yunnan University of Chinese Medicine, Kunming 650500, Yunnan Province, China; 2NeuroDawn Pharmaceutical, Nanjing 210000, Jiangsu Province, China
  • Received:2023-11-20 Accepted:2023-12-27 Online:2024-12-08 Published:2024-03-14
  • Contact: Corresponding author: Wang Wenjing, MD, Professor, Doctoral supervisor, Yunnan University of Chinese Medicine, Kunming 650500, Yunnan Province, China Li Xiufang, MD, Professor, Doctoral supervisor, Yunnan University of Chinese Medicine, Kunming 650500, Yunnan Province, China
  • About author:Jiang Zixian, Master candidate, Yunnan University of Chinese Medicine, Kunming 650500, Yunnan Province, China
  • Supported by:
    the National Natural Science Foundation of China, No. 82160744 (to WWJ); Song Shaojiang Expert Workstation in Yunnan Province, No. 202305AF150030 (to WWJ)

摘要:


文题释义:

斯赤列:是忍冬科接骨木属植物血满草 (Sambucus adnata Wall.),云南彝、藏、佤、哈尼等少数民族多将该药用于治疗风湿疼痛、风湿性关节炎、骨折等疾病,药用历史悠久。
血管新生:也称血管生成,即从现有血管形成新血管。在许多病理状况下,例如癌症、关节炎等疾病,都会出现血管生成过程。血管生成是关节炎的早期关键特征,由炎症细胞因子开启并由关节缺氧诱导。由于新血管的形成可以促进更多炎症浸润,并为滑膜细胞提供氧气和营养,因此它可以加剧疾病进展。


背景:课题组前期研究表明,斯赤列提取物具有促进成骨细胞增殖分化,促进骨折愈合、抗炎、抗氧化等作用,可有效缓解骨关节炎的发展。血管内皮生长因子则为骨关节炎严重程度评价的生物标记物。

目的:探讨斯赤列两种提取物 (甲醇提取物SAW-ME、二氯甲烷提取物SAW-DCE)对抗骨关节炎血管新生的作用及机制。
方法:①采用前交叉韧带切断法复制大鼠骨关节炎模型(模型组),分别给予SAW-ME、SAW-DCE干预,并设假手术组为对照。运用免疫组化、免疫荧光等方法检测大鼠关节中血管内皮生长因子A、血清中血管内皮生长因子和软骨下骨H型血管的变化。②以血管内皮细胞EA.hy926为研究对象,给予SAW-ME、SAW-DCE干预,MTT法检测对细胞增殖的影响;采用血管内皮生长因子诱导EA.hy926细胞,复制血管新生模型,进行划痕实验、成管实验研究其作用和机制。③采用EA.hy926细胞进行转录组测序,分析给予SAW-DCE干预后细胞差异基因及相关功能的特征变化。

结果与结论:①SAW-ME、SAW-DCE可下调骨关节炎大鼠膝关节软骨中血管内皮生长因子A的表达,减少关节中H型血管的生成;SAW-ME可显著降低骨关节炎大鼠血清中血管内皮生长因子水平(P < 0.05);SAW-DCE可降低骨关节炎大鼠血清中血管内皮生长因子水平,但差异无显著性意义。②SAW-ME、SAW-DCE均可显著抑制血管内皮细胞迁移和成管,下调Ang1和Tie2蛋白的表达。③转录组测序分析发现骨关节炎血管异常新生与PI3K/AKT信号通路有关。④结果表明SAW-ME、SAW-DCE能够抑制骨关节炎模型大鼠异常血管新生,其作用机制可能与调控Ang1/Tie2、PI3K/AKT信号通路有关。 

https://orcid.org/0009-0001-1297-8044(江自鲜)

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: 斯赤列, 甲醇提取物, 二氯甲烷提取物, 血管新生, 骨关节炎, 血管内皮生长因子, PI3K/AKT, 转录组学

Abstract: BACKGROUND: Previous studies showed that extracts of Sambucus adnata Wall. have the ability to promote the proliferation and differentiation of osteoblasts, fracture healing, anti-inflammatory and antioxidant effects, which can effectively alleviate the development of osteoarthritis. Vascular endothelial growth factor, on the other hand, is a biomarker for the evaluation of osteoarthritis severity.
OBJECTIVE: To investigate the effect and mechanism of two extracts of Sambucus adnata Wall. (methanol extract SAW-ME and dichloromethane extract SAW-DCE) on angiogenesis in osteoarthritis. 
METHODS: (1) Rat models of osteoarthritis were established using anterior cruciate ligament transection and given SAW-ME and SAW-DCE. A sham group was set as a control. Immunohistochemistry and immunofluorescence were used to detect the changes of articular vascular endothelial growth factor A in joint tissue and vascular endothelial growth factor and “H” type blood vessels in serum of osteoarthritis rats. (2) Vascular endothelial cells EA.hy926 were used as the research object and intervened with SAW-ME and SAW-DCE. Cell proliferation was then detected by MTT assay. Vascular endothelial growth factor was used to induce EA.hy926 cells, and the model of angiogenesis was replicated. Cell scratch assay and tube formation assay were performed to study the role and mechanism. (3) EA.hy926 cells were used for transcriptome sequencing to analyze the characteristic changes of cell differential genes and related functions after SAW-DCE intervention. 
RESULTS AND CONCLUSION: (1) SAW-ME and SAW-DCE downregulated the expression of vascular endothelial growth factor A in the rat knee cartilage and reduced the formation of “H” type vessels in osteoarthritis rats. SAW-ME could significantly decrease the level of vascular endothelial growth factor in serum of osteoarthritis rats (P < 0.05). SAW-DCE could also decrease the level of vascular endothelial growth factor in serum of osteoarthritis rats, but there was no significant change. (2) Both SAW-ME and SAW-DCE significantly inhibited vascular endothelial cell migration and tube formation, and downregulated the expression of Ang1 and Tie2 proteins. (3) Transcriptome sequencing analysis found that abnormal angiogenesis in osteoarthritis was related to the PI3K/AKT signaling pathway. (4) To conclude, SAW-ME and SAW-DCE can inhibit angiogenesis in the rat model of osteoarthritis, and the mechanism may be related to the Ang1/Tie2 and PI3K/AKT signaling pathways.

Key words: Sambucus adnata Wall., methanol extract, dichloromethane extract, angiogenesis, osteoarthritis, vascular endothelial growth factor, PI3K/AKT, transcriptomics

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