中国组织工程研究 ›› 2026, Vol. 30 ›› Issue (32): 8335-8344.doi: 10.12307/2026.417

• 组织工程软骨材料 tissue-engineered cartilage • 上一篇    下一篇

胶原蛋白与纤维蛋白粘合剂修复兔关节软骨损伤的有效性

严炎刘星,邓欣欣, 邹  杰,李鉴墨   

  1. 康膝生物医疗(深圳)有限公司,广东省深圳市   518057
  • 接受日期:2026-01-06 出版日期:2026-11-18 发布日期:2026-04-23
  • 通讯作者: 李鉴墨,博士,高级工程师,康膝生物医疗(深圳)有限公司,广东省深圳市 518057
  • 作者简介:严炎刘星,女,1987年生,江西省吉安市人,汉族,博士,主要从事骨科医疗器械研发、组织修复与再生等研究。
  • 基金资助:
    深圳市科技计划资助项目(KQTD20190929172501638),项目负责人:李鉴墨

Effectiveness of collagen and fibrin sealant in repairing articular cartilage damage in rabbits

Yan Yanliuxing, Deng Xinxin, Zou Jie, Li Jianmo   

  1. Konee Co., Ltd., Shenzhen 518057, Guangdong Province, China
  • Accepted:2026-01-06 Online:2026-11-18 Published:2026-04-23
  • Contact: Li Jianmo, PhD, Senior engineer, Konee Co., Ltd., Shenzhen 518057, Guangdong Province, China
  • About author:Yan Yanliuxing, PhD, Konee Co., Ltd., Shenzhen 518057, Guangdong Province, China
  • Supported by:
    Shenzhen Science and Technology Program, Grant No. KQTD20190929172501638 (to LJM) 

摘要:

文题释义:
关节软骨损伤修复:根据组织工程理论和方法,在损伤关节软骨部位植入活性生物支架材料,结合自体骨髓间充质干细胞实现损伤软骨组织的再生,完成对受损关节软骨的修复。
生物支架材料:取自于天然材料(如蛋白质类、多糖类)的组织工程支架,它们的重要特征是具有三维结构,为细胞的生长、代谢和基质产生提供结构支撑,促进细胞的黏附和生长,同时必须满足生物相容性、生物降解性、机械稳定性和孔隙结构等要求。

背景:关节软骨的主要成分为胶原蛋白,使用胶原蛋白作为支架材料,结合自体骨髓间充质干细胞原位修复成为治疗关节软骨损伤新的手段。
目的:评估胶原蛋白联合纤维蛋白粘合剂修复兔关节软骨损伤的有效性。
方法:取48只新西兰兔,在左后肢股骨内髁滑车面制作直径4.5 mm、深3 mm的全层软骨缺损,随机分4组干预:微骨折组(n=12)进行微骨折术,胶原蛋白组(n=12)进行微骨折术后将国产胶原蛋白注射至软骨缺损处,CartiRegen组(n=12)进行微骨折术后将进口胶原蛋白与纤维蛋白粘合剂混合物注射至软骨缺损处,实验组(n=12)进行微骨折术后将国产胶原蛋白与纤维蛋白粘合剂混合物注射至软骨缺损处。术后12,24周,进行膝关节MRI检查以及膝关节软骨修复组织苏木精-伊红、甲苯胺蓝、番红O-固绿染色、Ⅱ型胶原免疫组化染色与ICRS评分、Mankin评分,术后24周进行膝关节软骨修复组织压缩模量和硬度检测。
结果与结论:①MRI检查显示,术后24周,微骨折组软骨缺损基本填充完全,软骨修复组织与周围正常软骨组织的整合性较差;胶原蛋白组软骨缺损基本填充完全,与周围正常软骨组织基本完全整合,略有差异;CartiRegen组和实验组软骨缺损填充完全,与周围健康软骨组织的整合、平面等未见明显差异。②组织学染色显示,微骨折组软骨组织染色较浅且不均匀,软骨形态欠佳;胶原蛋白组软骨组织染色较均匀,软骨修复面平整,与周围正常软骨组织基本整合,但存在裂隙;CartiRegen组和实验组软骨组织染色均匀,表面光滑,组织致密,与周围组织整合良好,填充程度好。③CartiRegen组和实验组术后24周的软骨修复ICRS评分、Mankin评分低于微骨折组、胶原蛋白组(P < 0.05),胶原蛋白组、CartiRegen组和实验组术后24周的软骨硬度大于微骨折组(P < 0.05)。④结果表明,胶原蛋白、纤维蛋白粘合剂联合微骨折术治疗软骨损伤具有良好的修复效果。
https://orcid.org/0009-0001-8362-7452 (严炎刘星) 

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: 关节软骨修复, Ⅰ型胶原蛋白, 微骨折, 纤维蛋白粘合剂, 生物支架材料, 软骨损伤

Abstract: BACKGROUND: Articular cartilage is primarily composed of collagen. Using collagen as a scaffold material,  combined with autologous bone marrow mesenchymal stem cells for in situ repair, has become a new method for treating articular cartilage damage.
OBJECTIVE: To evaluate the effectiveness of collagen combined with fibrin sealant in repairing articular cartilage defects in rabbits.
METHODS: Forty-eight New Zealand rabbits were used. Full-thickness cartilage defects of 4.5 mm in diameter and 3 mm in depth were created on the trochlear surface of the medial femoral condyle of the left hind limbs. The rabbits were randomly divided into four groups: microfracture group (n=12) underwent microfracture surgery. Collagen group (n=12) underwent microfracture surgery followed by injection of domestically produced collagen into the cartilage defect. CartiRegen group (n=12) underwent microfracture surgery followed by injection of a mixture of imported collagen and fibrin sealant into the cartilage defect. Experimental group (n=12) underwent microfracture surgery followed by injection of a mixture of domestically produced collagen and fibrin sealant into the cartilage defect. At 12 and 24 weeks post-surgery, knee joint MRI examinations were performed, and the knee joint cartilage repair tissue was subjected to hematoxylin-eosin, toluidine blue, safranin O-fast green staining, type II collagen immunohistochemical staining, ICRS scoring, and Mankin scoring. The compression modulus and hardness of the knee joint cartilage repair tissue were measured at 24 weeks post-surgery.
RESULTS AND CONCLUSION: (1) MRI examinations showed that at 24 weeks post-surgery, the cartilage defect in the microfracture group was almost completely filled, but the integration of the cartilage repair tissue with the surrounding normal cartilage tissue was poor. The cartilage defect in the collagen group was almost completely filled, and the integration with the surrounding normal cartilage tissue was almost complete, with slight differences. The cartilage defects in the CartiRegen group and the experimental group were completely filled, and there were no significant differences in integration and surface level compared with the surrounding healthy cartilage tissue. (2) Histological staining showed that the cartilage tissue in the microfracture group was lightly and unevenly stained, with poor cartilage morphology. The cartilage tissue in the collagen group was more evenly stained, with a smooth cartilage repair surface and good integration with the surrounding normal cartilage tissue, but with some fissures. The cartilage tissue in the CartiRegen group and the experimental group showed uniform staining, a smooth surface, dense tissue, good integration with the surrounding tissue, and good filling. (3) The ICRS score and Mankin score of cartilage repair at 24 weeks post-operation in the CartiRegen group and the experimental group were lower than those in the microfracture group and the collagen group (P < 0.05), and the cartilage hardness at 24 weeks post-operation in the collagen group, CartiRegen group, and experimental group was greater than that in the microfracture group (P < 0.05). (4) The results exhibit that the combination of collagen and fibrin sealant with microfracture surgery has a good repair effect on cartilage damage.


Key words: articular cartilage repair, type I collagen, microfracture, fibrin sealant, biomaterial scaffold, cartilage injury

中图分类号: