H 型血管在骨发育及骨疾病中作用研究进展
Research progress on H⁃Type blood vessel in bone development and bone diseases
  
DOI:10.3969/j.issn.1006-7108.2023.05.025
中文关键词:  H 型血管  骨发育  骨疾病  成骨细胞  VEGF  PDGF⁃BB
英文关键词:H⁃type blood vessel  bone development  bone disease  osteoblast  VEGF  PDGF⁃BB
基金项目:国家自然科学基金重点项目(81830079)
作者单位
刘晓南 余斌∗ 南方医科大学附属南方医院创伤骨科广东广州510515 
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中文摘要:
      骨髓中的H 型血管是与成骨活动高度耦联的骨髓血管亚型,特点是EMCN 和CD31 的高表达。H 型血管在长骨发育的 过程中在松质骨区形成,为生长板附近的细胞提供充足的营养支持,并通过旁分泌的方式影响前成骨细胞及破骨细胞的增殖 及分化,提供适宜的微环境从而有利于新生骨的形成。由于H 型血管与成骨活动有十分密切的关系,在骨折愈合、骨质疏松、 骨关节炎、骨坏死以及肿瘤骨转移等骨疾病生理和病理过程中均有H 型血管的参与,而针对H 型血管的治疗可以改善上述疾 病的进程。本文对H 型血管与其耦联的成骨活动的机制进行了综述,有利于进一步了解H 型血管在骨代谢中的作用,为从血 管的角度理解骨疾病提供理论基础和思路。
英文摘要:
      H?type blood vessel is a specialized bone marrow blood vessels that is highly coupled to osteogenic activity, characterized by high expression of EMCN and CD31. Type H vessels are formed in the cancellous bone area during long bone development to provide adequate nutritional support for cells near the growth plate and influencing the proliferation and differentiation of osteoprogenitors and osteoclasts in a paracrine manner, thus providing a suitable microenvironment to facilitate new bone formation. Because of the close relationship between H?type vessels and osteogenic activity, it has been found that H?type vessels are involved in the physiological and pathological processes of bone diseases such as fracture healing, osteoporosis, osteoarthritis, osteonecrosis, and tumor bone metastasis. Moreover, experimental treatments targeting H?type vessels can improve the outcome of these diseases. Here, we reviewed the molecular mechanisms related to H?type vessels and their coupled osteogenic activities. which are helpful to further understand the role of H?type vessels in bone metabolism and hopefully provide theoretical basis and ideas for understanding bone diseases from a vascular perspective.
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