中国组织工程研究 ›› 2021, Vol. 25 ›› Issue (32): 5116-5122.doi: 10.12307/2021.213

• 骨组织构建 bone tissue construction • 上一篇    下一篇

骨碎补总黄酮干预Notch信号通路影响骨重建过程中成血管-成骨耦联

黄敏玲1,卢赵琦2,申  震3,林海雄1,冯骏杰1,黄  枫4,姜自伟4,蔡群斌4   

  1. 1广州中医药大学第一临床医学院,广东省广州市   510405;2广州中医药大学第四临床医学院,广东省广州市  510405;3昆明市中医院,云南省昆明市    650000;4广州中医药大学第一附属医院,广东省广州市    510405

  • 收稿日期:2020-08-25 修回日期:2020-08-28 接受日期:2020-10-24 出版日期:2021-11-18 发布日期:2021-07-26
  • 通讯作者: 蔡群斌,硕士,主治医师,广州中医药大学第一附属医院,广东省广州市 510405
  • 作者简介:黄敏玲,女,1994年生,广东省云浮市人,汉族,广州中医药大学在读硕士,主要从事中医药治疗骨与关节损伤方面的研究。
  • 基金资助:
    国家自然科学基金面上项目(81974575),项目负责人:姜自伟;广州中医药大学第一附属医院创新强院青年科研基金项目(2019QN27),项目负责人:蔡群斌

Effects of total flavone of Rhizoma Drynariae on the coupling of angiogenesis and osteogenesis in bone remodeling through notch signaling pathway

Huang Minling1, Lu Zhaoqi2, Shen Zhen3, Lin Haixiong1, Feng Junjie1, Huang Feng4, Jiang Ziwei4, Cai Qunbin4   

  1. 1First Clinical School of Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong Province, China; 2Fourth Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong Province, China; 3Kunming Hospital of Traditional Chinese Medicine, Kunming 650000, Yunnan Province, China; 4The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong Province, China

  • Received:2020-08-25 Revised:2020-08-28 Accepted:2020-10-24 Online:2021-11-18 Published:2021-07-26
  • Contact: Cai Qunbin, Master, Attending physician, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong Province, China
  • About author:Huang Minling, Master candidate, First Clinical School of Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong Province, China
  • Supported by:
    the National Natural Science Foundation of China, No. 81974575 (to JZW); The Youth Scientific Research Fund of the First Affiliated Hospital of Guangzhou University of Chinese Medicine, No. 2019QN27 (to CQB) 

摘要:

文题释义:
骨缺损:是指骨质缺损到达一定程度使其不能在自然状态下达到骨愈合。由于创伤、骨肿瘤、肢体畸形及骨感染等导致的大段骨缺损不仅会造成严重的社会、经济负担,也是骨科临床面临的重大挑战,成为近年来骨科领域的研究热点。
Notch信号通路:Notch信号通路由受体(Notch1、Notch2、Notch3、Notch4)和配体(GLL1、DLL3、DLL4、Jagged1、Jagged2)、细胞内效应分子(Hes1、Hes5)以及相关的酶组成。在新生血管形成过程中,Notch信号通路是目前已知的最重要信号通路之一。

背景:骨缺损是骨科临床的难题,骨碎补总黄酮对骨缺损治疗有确切疗效,但是其具体机制尚不明确。
目的:基于Notch信号通路探讨骨碎补总黄酮在骨重建过程中对血管生成和骨形成的影响。
方法:48只SD大鼠随机分为模型组、中药组、中药+DAPT组、DAPT组,每组12只。构建大鼠股骨缺损模型,分别给予中药骨碎补总黄酮和Notch通路阻滞剂DAPT干预,干预12周后通过X射线片、Micro-CT和苏木精-伊红染色观察骨缺损的成骨情况,免疫组化检测骨组织中血管内皮生长因子、CD31、Hes1、骨形态发生蛋白2、Notch1蛋白的表达。
结果与结论:①X射线片、Micro-CT和苏木精-伊红染色显示中药组的成骨效果明显优于其他3组;②免疫组化检测显示中药组骨形态发生蛋白2、血管内皮生长因子、CD31、Hes1、Notch1平均吸光度值较模型组明显增多(P < 0.05);中药+DAPT组血管内皮生长因子、Hes1、骨形态发生蛋白2的平均吸光度值大于DAPT组(P < 0.05),但CD31和Notch1表达组间差异无显著性意义;③结果表明,骨碎补总黄酮通过激活Notch通路促进骨重建过程中成血管-成骨耦联,从而促进骨修复。 

https://orcid.org/0000-0003-2885-6196 (黄敏玲) 
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: 骨缺损, 骨碎补总黄酮, 血管生成, 成骨效能, Notch, 信号通路, 大鼠

Abstract: BACKGROUND: Bone defect is a clinical difficulty in orthopedics. Total flavone Rhizoma Drynariae has a definite therapeutic effect on bone defects, but the specific mechanism is not clear. 
OBJECTIVE: To explore the effects of the total flavone of Rhizoma Drynariae on angiogenesis and bone formation during bone remodeling.
METHODS: Forty-eight Sprague-Dawley rats were divided into four groups, 12 in each group, including model group, traditional Chinese medicine (TCM) group, TCM + DAPT group, and DAPT group. femoral bone defect model was established in each rat and interventions with the total flavone of Rhizoma Drynariae and the Notch signaling pathway blocker DAPT were given in corresponding groups. Osteogenesis was evaluated by X-ray, Micro-CT, and hematoxylin-eosin staining at 12 weeks of interventions. The levels of vascular endothelial growth factor, CD31, Hes1, bone morphogenetic protein 2, and Notch1 in bone tissue were detected by immunohistochemistry. 
RESULTS AND CONCLUSION: X-ray, Micro-CT and hematoxylin-eosin staining showed that TCM group showed significantly better osteogenesis than the other three groups. Immunohistochemistry detection indicated that compared with the model group, the average absorbance values of vascular endothelial growth factor, CD31, Hes1, bone morphogenetic protein 2, and Notch1 were significantly higher in the TCM group (P < 0.05). Compared with the DAPT group, the average absorbance values of vascular endothelial growth factor, Hes1, and bone morphogenetic protein 2 were significantly increased in the TCM+DAPT group, while there was no significant difference in the expression of CD31 and Notch1 between the two groups. These findings indicate that the total flavone of Rhizoma Drynariae can promote the coupling of angiogenesis-osteogenesis in bone remodeling by activating the Notch pathway, thereby promoting bone repair.

Key words: bone defect, total flavone of Rhizoma Drynariae, angiogenesis, osteogenesis, Notch, signaling pathway, rat

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