中国组织工程研究 ›› 2024, Vol. 28 ›› Issue (32): 5167-5171.doi: 10.12307/2024.511

• 软骨组织构建 cartilage tissue construction • 上一篇    下一篇

富血小板纤维蛋白调控细胞凋亡修复大鼠膝骨关节炎损伤软骨

侯增涛1,董志伟1,张金锋1,杨晓慧2,范  筱2   

  1. 1青岛市中医医院(青岛市海慈医院),青岛大学附属青岛市海慈医院,骨关节外科与创伤外科中心,山东省青岛市  266033;2康复大学青岛医院(青岛市市立医院)骨关节外科,山东省青岛市  266011
  • 收稿日期:2023-08-26 接受日期:2023-10-14 出版日期:2024-11-18 发布日期:2023-12-29
  • 通讯作者: 范筱,博士,主治医生,康复大学青岛医院(青岛市市立医院)骨关节外科,山东省青岛市 266011 杨晓慧,护师,康复大学青岛医院(青岛市市立医院)骨关节外科,山东省青岛市 266011
  • 作者简介:侯增涛,男,1978年生,山东省桓台县人,汉族,2014年青岛大学毕业,博士,副主任医师,主要从事骨与关节损伤的相关研究。
  • 基金资助:
    国家自然科学基金项目(82205149),项目负责人:范筱;山东省医药卫生科技发展计划(202104070089),项目负责人:侯增涛

Platelet-rich fibrin regulates apoptosis to promote cartilage repair in rats with knee osteoarthritis

Hou Zengtao1, Dong Zhiwei1, Zhang Jinfeng1, Yang Xiaohui2, Fan Xiao2   

  1. 1Bone and Joint Surgery and Trauma Surgery Center, Qingdao Traditional Chinese Medicine Hospital (Qingdao Hiser Hospital), Qingdao Hiser Hospital Affiliated to Qingdao University, Qingdao 266033, Shandong Province, China; 2Department of Bone and Joint Surgery, Qingdao Hospital (Qingdao Municipal Hospital), University of Health and Rehabilitation Sciences, Qingdao 266011, Shandong Province, China
  • Received:2023-08-26 Accepted:2023-10-14 Online:2024-11-18 Published:2023-12-29
  • Contact: Fan Xiao, MD, Attending physician, Department of Bone and Joint Surgery, Qingdao Hospital (Qingdao Municipal Hospital), University of Health and Rehabilitation Sciences, Qingdao 266011, Shandong Province, China Yang Xiaohui, Senior nurse, Department of Bone and Joint Surgery, Qingdao Hospital (Qingdao Municipal Hospital), University of Health and Rehabilitation Sciences, Qingdao 266011, Shandong Province, China
  • About author:Hou Zengtao, MD, Associate chief physician, Bone and Joint Surgery and Trauma Surgery Center, Qingdao Traditional Chinese Medicine Hospital (Qingdao Hiser Hospital), Qingdao Hiser Hospital Affiliated to Qingdao University, Qingdao 266033, Shandong Province, China
  • Supported by:
    National Natural Science Foundation of China, No. 82205149 (to FX); Shandong Province Medical and Health Technology Development Plan, No. 202104070089 (to HZT)

摘要:


文题释义:

富血小板纤维蛋白(platelet-rich fibrin,PRF):在2001年由法国科学家Choukroun等发现,是继富血小板血浆后第2代血小板浓缩制品,被定义为自体白细胞和富血小板纤维生物材料。其制备过程中未使用任何外源性添加物,避免了免疫排斥反应、交叉感染现象以及凝血功能障碍出现的风险,且其制备技术简化为一步离心。
富血小板血浆(platelet-rich plasma,PRP):是自体全血经离心后得到的血小板浓缩物。PRP中含有大量生长因子及蛋白质。


背景:富血小板纤维蛋白作为第2代血小板浓缩物具有操作简单、无抗凝剂、生物活性高等优点,已在创面修复、骨缺损修复、肌腱软组织修复等领域应用,并被证实具有一定的组织修复促进作用。

目的:研究富血小板纤维蛋白对膝骨关节炎大鼠关节软骨组织的修复作用。
方法:36只SD大鼠随机分为正常组、模型组和富血小板纤维蛋白组,每组12只;正常组大鼠不做任何处理;模型组大鼠制备膝骨关节炎模型,术后每周给予生理盐水关节腔注射1次;富血小板纤维蛋白组大鼠制备膝骨关节炎模型,术后每周给予自体富血小板纤维蛋白关节腔注射1次;连续治疗5周后取材。采用苏木精-伊红染色观察软骨组织形态,采用Tunel染色检测软骨细胞凋亡,采用ELISA检测炎性因子含量,采用Western blot及RT-PCR检测Bcl-2、Bax和Caspase-3蛋白和mRNA的表达。

结果与结论:①模型组软骨组织受损严重,富血小板纤维蛋白组软骨组织形态较模型组有显著改善;②模型组软骨细胞凋亡较多;富血小板纤维蛋白组Tunel染色阳性染色平均吸光度值显著降低(P < 0.01);③与正常组比较,模型组和富血小板纤维蛋白组的白细胞介素1β、白细胞介素6和肿瘤坏死因子α含量显著增加(P < 0.01);与模型组比较,富血小板纤维蛋白组的白细胞介素1β、白细胞介素6和肿瘤坏死因子α含量显著减少(P < 0.01);④与正常组比较,模型组和富血小板纤维蛋白组Bax和Caspase-3蛋白和mRNA的相对表达量显著增加(P < 0.01),而Bcl-2蛋白和mRNA的相对表达量显著减少(P < 0.01);与模型组比较,富血小板纤维蛋白组Bax和Caspase-3蛋白和mRNA的相对表达量显著减少(P < 0.01),而Bcl-2蛋白和mRNA的相对表达量显著增加(P < 0.01);⑤结果说明,富血小板纤维蛋白可通过抑制促炎因子表达而抑制软骨细胞凋亡,从而促进膝骨关节炎大鼠软骨组织修复。

https://orcid.org/0009-0000-6164-4887(侯增涛)

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: 膝骨关节炎, 富血小板纤维蛋白, 炎症, 凋亡, 血小板浓缩物

Abstract: BACKGROUND: Platelet-rich fibrin (PRF) is a second generation platelet concentrate with the advantages of simple operation, no anticoagulant, and high bioactivity, which has been applied in the fields of trauma repair, bone defect repair, and tendon soft tissue repair, and has been proved to have a certain tissue repair-promoting effect.
OBJECTIVE: To study the repair effect of PRF on articular cartilage tissue in rats with knee osteoarthritis. 
METHODS: Thirty-six Sprague-Dawley rats were randomly divided into normal group, model group, and PRF group, with 12 rats in each group. Rats in the normal group did not undergo any treatment. In the model group, animal models of knee osteoarthritis were prepared and rat models were then given physiological saline into the joint cavity once a week after surgery. Rat models of knee osteoarthritis were also prepared in the PRF group, and autologous PRF was injected into the joint cavity once a week after surgery. After 5 weeks of continuous treatment, tissue samples were taken. Hematoxylin-eosin staining was used to observe the morphology of cartilage tissue. Tunel staining was used to detect chondrocyte apoptosis, ELISA was used to detect inflammatory factor levels. Western blot and RT-PCR were used to detect Bcl-2, Bax, and Caspase-3 expression in protein and mRNA levels, respectively. 
RESULTS AND CONCLUSION: The model group had severe cartilage tissue damage, while the PRF group had significantly improved cartilage tissue morphology compared with the model group. The model group had more apoptotic chondrocytes. Compared with the model group, the mean absorbance of Tunel positive staining in the PRF group significantly decreased (P < 0.01). The levels of interleukin-1β, interleukin-6 and tumor necrosis factor-α were significantly increased in the model group and PRF group compared with the normal group (P < 0.01) and were significantly decreased in the PRF group compared with the model group (P < 0.01). The relative expressions of Bax and Caspase-3 at protein and mRNA levels were significantly increased in the model group and PRF group compared with the normal group (P < 0.01), while the relative expressions of Bcl-2 at protein and mRNA were significantly decreased (P < 0.01). Compared with the model group, the relative expression of Bax and Caspase-3 at protein and mRNA levels were significantly decreased in the PRF group (P < 0.01), while the relative expressions of Bcl-2 at protein and mRNA levels were significantly increased (P < 0.01). To conclude, PRF can inhibit chondrocyte apoptosis by inhibiting the expression of pro-inflammatory factors, thereby promoting cartilage tissue repair in knee osteoarthritis rats. 

Key words: knee osteoarthritis, platelet-rich fibrin, inflammation, apoptosis, platelet concentrate

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