中国组织工程研究 ›› 2022, Vol. 26 ›› Issue (4): 579-584.doi: 10.12307/2022.095

• 材料生物相容性 material biocompatibility • 上一篇    下一篇

雷帕霉素联合CD133抗体支架预防血管再狭窄的有效性和安全性

杨  峰1,赵  骞1,张世轩2,赵铁男1,冯  博3   

  1. 1沈阳医学院附属中心医院,辽宁省沈阳市   110024;2大连理工大学,辽宁省大连市   116024;3中国医科大学附属第一医院,辽宁省沈阳市 110001
  • 收稿日期:2020-11-18 修回日期:2020-11-27 接受日期:2021-01-30 出版日期:2022-02-08 发布日期:2021-12-06
  • 通讯作者: 冯博,博士,教授,博士生导师,中国医科大学附属第一医院,辽宁省沈阳市 110001
  • 作者简介:杨峰,女,1983年生,辽宁省沈阳市人,汉族,2014年中国医科大学毕业,博士,副主任医师,主要从事医学影像诊断学及相关基础研究。
  • 基金资助:
    沈阳市科技计划项目(18-014-4-35) ,项目负责人:杨峰;辽宁省自然科学基金项目(2013021024),项目负责人:冯博;辽宁省博士启动基金项目(201501048),项目负责人:杨峰;沈阳医学院科技基金项目(20132039),项目负责人:赵骞

Effectiveness and safety of rapamycin combined with CD133 antibody stent in preventing vascular restenosis

Yang Feng1, Zhao Qian1, Zhang Shixuan2, Zhao Tienan1, Feng Bo3   

  1. 1Central Hospital Affiliated to Shenyang Medical College, Shenyang 110024, Liaoning Province, China; 2Dalian University of Technology, Dalian 116024, Liaoning Province, China; 3First Affiliated Hospital of China Medical University, Shenyang 110001, Liaoning Province, China 
  • Received:2020-11-18 Revised:2020-11-27 Accepted:2021-01-30 Online:2022-02-08 Published:2021-12-06
  • Contact: Feng Bo, MD, Professor, Doctoral supervisor, First Affiliated Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
  • About author:Yang Feng, MD, Associate chief physician, Central Hospital Affiliated to Shenyang Medical College, Shenyang 110024, Liaoning Province, China
  • Supported by:
    Science and Technology Fund Project of Shenyang, No. 18-014-4-35 (to YF); Natural Science Foundation of Liaoning, No. 2013021024 (to FB); Doctoral Startup Fund Project of Liaoning Province, No. 201501048 (to YF); Science and Technology Fund Project of Shenyang Medical College, No. 20132039 (to ZQ) 

摘要:

文题释义:
雷帕霉素:是一种大环内脂类抗生素,作为药物涂层支架表面药物,针对损伤后血管,可显著抑制血管平滑肌细胞和内皮细胞的迁移和增殖,达到抗支架植入后再狭窄的疗效,有效减低再狭窄率,治疗范围广泛。
CD133抗体支架:将CD133抗体涂布支架表面,血管内膜受损后,利用抗原抗体反应捕获循环血液中的内皮细胞,使其在受损部位聚集并迅速修复受损内皮,进而修复损伤血管,达到预防再狭窄的目的。


背景:药物洗脱支架和单纯内皮修复型支架在治疗血管狭窄疾病时可见内皮化延迟以及植入后再狭窄的问题。作者既往的体外研究显示雷帕霉素联合CD133抗体支架可协同抵消抗增殖药物的内皮化延迟和内膜的过度增生。
目的:在小型猪冠状动脉损伤模型中,分析雷帕霉素联合CD133抗体复合支架预防血管再狭窄的效果。
方法:将冠状动脉损伤小型猪模型随机分为雷帕霉素组、CD133抗体组以及雷帕霉素/CD133抗体组,分别在损伤冠状动脉置入雷帕霉素支架、CD133抗体支架和雷帕霉素联合CD133抗体支架。动物实验于2019-03-15经沈阳医学院附属中心医院实验动物伦理委员会审批,审批号20190017。
结果与结论:①3组支架植入后14 d和1个月时,内皮化程度存在差异,其中雷帕霉素组支架内皮覆盖程度低于CD133抗体组及雷帕霉素/CD133抗体组。②置入后3和6个月,雷帕霉素组和雷帕霉素联合CD133抗体组管腔狭窄率较低,但雷帕霉素支架周围组织存在明显的炎症反应,且CD133抗体支架可引起明显内膜增生及管腔狭窄。③提示雷帕霉素联合CD133抗体支架可在体内实现早期内皮化,促进内皮细胞修复,并在置入后降低周围组织炎症反应,且其6个月内抗增殖效果与雷帕霉素支架接近。

https://orcid.org/0000-0002-9844-8182 (杨峰) 

中国组织工程研究杂志出版内容重点:生物材料;骨生物材料口腔生物材料纳米材料缓释材料材料相容性;组织工程

关键词: 生物材料, 涂层支架, 雷帕霉素, CD133抗体, 内皮祖细胞, 内皮化, 再狭窄, 血管损伤

Abstract: BACKGROUND: Drug eluting stents and endothelium stents for clinical treatment of vascular stenosis can lead to delayed endothelialization and restenosis. The authors’ previous in vitro studies have shown a rapamycin eluting stent combined with CD133 antibody can play a synergistic role to offset delayed endothelialization and intimal hyperplasia due to antiproliferative drugs.
OBJECTIVE: To observe the efficacy of anti-CD133 antibody applied on a rapamycin eluting stent in the minipig coronary artery injury model.
METHODS: Rapamycin-eluting stents, anti-CD133 antibody stents, and anti-CD133 antibody applied on rapamycin-eluting stents were implanted in minipig coronary arteries in the rapamycin group, CD133 antibody group, and rapamycin/CD133 antibody group, respectively. Animal experiments were approved by the Laboratory Animal Ethics Committee of Central Hospital Affiliated to Shenyang Medical College (approval No. 20190017) on March 15, 2019.  
RESULTS AND CONCLUSION: (1) There were differences in the endothelialization extent in the three groups at 14 days and 1 month after implantation. The stent endothelial coverage of the rapamycin group was lower than that of the CD133 antibody group and the rapamycin/CD133 antibody group. (2) At 3 and 6 months after implantation, the luminal stenosis rate of the rapamycin group and the rapamycin/CD133 antibody group was lower, but there was obvious inflammation in the surrounding tissues of the rapamycin stent, and the CD133 antibody stent could cause obvious intimal hyperplasia and lumen stenosis. (3) It is suggested that rapamycin combined with CD133 antibody stent can achieve early endothelialization in vivo, promote endothelial cell repair, and reduce the inflammation of surrounding tissues after implantation, and its anti-proliferative effect is similar to that of rapamycin stent within 6 months. 

Key words: biomaterials, coated stents, rapamycin, CD133 antibody, endothelial progenitor cells, endothelialization, restenosis, vascular injury

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