中国组织工程研究 ›› 2023, Vol. 27 ›› Issue (8): 1199-1204.doi: 10.12307/2023.061

• 组织构建临床实践 clinical practice in tissue construction • 上一篇    下一篇

全血及不同方式制备富血小板血浆对髓核细胞的干预效应

练诗林1,2,张  燕2,蒋  强2,张晗硕2,李土胜2,丁  宇1,2   

  1. 1华南理工大学医学院,广东省广州市  510006;2解放军总医院第六医学中心中医医学部骨伤科,北京市  100048
  • 收稿日期:2022-02-07 接受日期:2022-03-17 出版日期:2023-03-18 发布日期:2022-07-28
  • 通讯作者: 丁宇,教授,主任医师,博士生导师,解放军总医院第六医学中心中医医学部骨伤科,北京市 100048;华南理工大学医学院,广东省广州市 510006
  • 作者简介:练诗林,男,1995年生,四川省宜宾市人,汉族,华南理工大学医学院在读硕士,主要从事脊柱外科方面的研究。
  • 基金资助:
    首都临床诊疗技术研究及示范应用项目“富血小板血浆椎间盘注射联合椎间孔镜技术治疗腰椎间盘突出症及术后康复的临床研究”(Z191100006619028),项目负责人:丁宇

Interventional effects of whole blood and platelet-rich plasma with different preparation methods on nucleus pulposus cells

Lian Shilin1, 2, Zhang Yan2, Jiang Qiang2, Zhang Hanshuo2, Li Tusheng2, Ding Yu1, 2   

  1. 1School of Medicine, South China University of Technology, Guangzhou 510006, Guangdong Province, China; 2Orthopedics of TCM Senior Department, the Sixth Medical Center of PLA General Hospital, Beijing 100048, China
  • Received:2022-02-07 Accepted:2022-03-17 Online:2023-03-18 Published:2022-07-28
  • Contact: Ding Yu, Professor, Chief physician, Doctoral supervisor, School of Medicine, South China University of Technology, Guangzhou 510006, Guangdong Province, China; Orthopedics of TCM Senior Department, the Sixth Medical Center of PLA General Hospital, Beijing 100048, China
  • About author:Lian Shilin, Master candidate, School of Medicine, South China University of Technology, Guangzhou 510006, Guangdong Province, China; Orthopedics of TCM Senior Department, the Sixth Medical Center of PLA General Hospital, Beijing 100048, China
  • Supported by:
    Capital Clinical Diagnosis and Treatment Technology Research and Demonstration Application Project, No. Z191100006619028 (to DY)

摘要:

文题释义:
富血小板血浆:是利用全血中各组分的沉降系数不同,而通过离心纯化得到的血小板富集的血浆。因其高浓度血小板能够释放多种生物活性因子,加快细胞增殖和组织修复再生,当前已经被应用于多领域的组织再生治疗中。
髓核细胞:是由脊索细胞演变而来的类软骨细胞,具有类似于软骨细胞的表型。髓核细胞分泌的Ⅱ型胶原和聚蛋白聚糖是髓核组织的重要细胞外基质,在椎间盘退变过程中,细胞外基质成分的含量失衡是影响椎间盘稳定的重要因素。

背景:目前椎间盘退变的富血小板血浆修复疗法受到越来越多的关注,临床应用中椎间盘修复的富血小板血浆常用的制备方法包括手工制备一次离心和套装制备二次离心法,不同制备方法的优劣证据不足。
目的:通过手工制备、套装制备富血小板血浆以及全血干预猪的原代髓核细胞,对比其效应差异,探讨更适合椎间盘退变修复的富血小板血浆制备方式。
方法:提取分离猪的静脉血,按照手工制备一次离心法及OSP套装制备二次离心法分别制备富血小板血浆,同时留取全血对比,并设立空白对照组PBS。检测制备富血小板血浆的血小板浓度、白细胞浓度,计算富集倍数。富血小板血浆激活后获得激活物并利用ELISA法检测其中转化生长因子β1、血小板源性生长因子BB、肿瘤坏死因子α、白细胞介素1β浓度。培养猪的髓核细胞至P3代,利用制备的富血小板血浆以及全血进行干预,CCK-8法检测富血小板血浆对髓核细胞的促增殖作用,Western-blot法检测富血小板血浆对髓核细胞Ⅱ型胶原、聚蛋白聚糖的促合成代谢作用。
结果与结论:①OSP组的富血小板血浆在制备耗时、血小板浓度、白细胞浓度方面均显著高于手工组,OSP组与手工组血小板富集倍数分别为5.6倍、3.0倍,白细胞富集倍数分别为2.21倍、1.36倍;②转化生长因子β1浓度、血小板源性生长因子BB浓度、肿瘤坏死因子α、白细胞介素1β水平OSP组均高于手工组,差异有显著性意义(P < 0.05);③CCK-8检测细胞增殖情况中,OSP组的A450 nm值高于其余各组,差异有显著性意义(P < 0.000 1);手工组的A450 nm值与全血组和对照组相比,差异无显著性意义(P=0.192 7);④Western-blot检测Ⅱ型胶原合成情况,OSP组的相对表达量显著高于其他组(P < 0.000 1);聚蛋白聚糖的合成情况,手工组的相对表达量低于其余各组(P=0.040 5);⑤结果说明,相对于手工制备方式,以OSP为代表的套装制备法制备耗时更长,所得富血小板血浆的白细胞浓度显著高于手工组,并且促炎因子浓度更高;但同时套装制备法能够获得更高浓度的血小板和生长因子,并且有更好的促细胞增殖效果和促细胞外基质合成效果。为取得更好的套装制备富血小板血浆疗效,应在套装制备操作中加强对白细胞的分离。
缩略语:血小板源性生长因子:platelet-derived growth factor,PDGF

https://orcid.org/0000-0002-6978-0872(练诗林)

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: 髓核细胞, 富血小板血浆, 手工制备, 套装制备, 椎间盘退变, 组织修复

Abstract: BACKGROUND: Platelet-rich plasma therapy for disc degeneration has received increasing attention. Platelet-rich plasma preparation methods for intervertebral disc repair include manual preparation using one-spin centrifugation and kit preparation using two-spin centrifugation. There was insufficient evidence of which preparation method is better.
OBJECTIVE: To compare the effects of intervention of porine nucleus pulposus cells with manually prepared platelet-rich plasma, kit-prepared platelet-rich plasma and whole blood and to explore the better preparation method of platelet-rich plasma for intervertebral disc repair.
METHODS: The porcine venous blood was extracted to prepare platelet-rich plasma using the manual preparation method of one-spin centrifugation and OSP kit preparation method of two-spin centrifugation. Some whole blood was reserved as control. And PBS was used to be blank control. The concentration of platelets and leukocytes in platelet-rich plasma was detected to calculate fold enrichment. ELISA was used to detect the concentration of transforming growth factor-β1, platelet-derived growth factor-BB, tumor necrosis factor-α and interleukin-1β in platelet-rich plasma lysate. Porcine nucleus pulposus cells were cultivated to P3 and intervened with prepared platelet-rich plasma and whole blood lysate. Cell counting kit-8 was used to detect the proliferation of nucleus pulposus cells after intervention with platelet-rich plasma and whole blood lysate. Western blot was used to detect the anabolic effects of platelet-rich plasma on type II collagen and aggrecan in nucleus pulposus cells.
RESULTS AND CONCLUSION: Compared with the manual group, the OSP group showed significantly longer preparation time and higher platelet and leukocyte concentrations in the preparation of platelet-rich plasma. The fold enrichment of platelet-rich plasma was 5.6 in the OSP group and 3.0 in the manual group, while the fold enrichment of leukocytes was 2.21 and 1.36 respectively. The concentrations of transforming growth factor-β1, platelet-derived growth factor-BB, tumor necrosis factor-α and interleukin-1β of the OSP group were significantly higher than those of the manual group (P < 0.05). In the cell counting kit-8 detection of cell proliferation, the absorbance value at 450 nm of the OSP group was significantly higher than that of the other groups (P < 0.000 1); there was no significant difference in the absorbance value at 450 nm of the manual group compared with the whole blood and control groups (P=0.192 7). The relative expression of type II collagen in the OSP group was significantly higher than that in the other groups (P < 0.000 1). As for the synthesis of aggrecan, the relative expression of aggrecan in the manual group was lower than that in the remaining groups (P=0.040 5). These findings indicate that compared with the manual preparation method, the kit preparation method represented by OSP consumes more time and can acquire significantly higher concentration of leukocytes and proinflammatory cytokines. However, the kit preparation method can obtain higher concentrations of platelets and growth factors and has better cell proliferation effect and synthesis effect of extracellular matrix. For a better therapeutic effect of platelet-rich plasma, it is suggested to enhance the isolation of leukocytes when using the kit preparation method.

Key words: nucleus pulposus cell, platelet-rich plasma, manual preparation, OSP kit preparation, intervertebral disc degeneration, tissue repair

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