中国组织工程研究 ›› 2013, Vol. 17 ›› Issue (16): 2981-2988.doi: 10.3969/j.issn.2095-4344.2013.16.019

• 细胞外基质材料 extracellular matrix materials • 上一篇    下一篇

富白细胞-血小板血浆凝胶释放的炎性生长因子

温天杨1,王爱红2,许樟荣2   

  1. 1 北京大学解放军306医院教学医院内分泌科,北京市  100101
    2 解放军306医院内分泌科、全军糖尿病诊治中心,北京市  100101
  • 收稿日期:2013-02-04 修回日期:2013-03-26 出版日期:2013-04-16 发布日期:2013-04-16
  • 通讯作者: 许樟荣,硕士,主任医师。解放军306医院内分泌科、全军糖尿病诊治中心,北京市 100101 xzr1021@vip.sina.com
  • 作者简介:温天杨★,女,1986年生,山东省烟台市人,汉族,北京大学医学部在读硕士,主要从事糖尿病及其并发症的防治。 pekingkw@163.com
  • 基金资助:

    2010年度军队临床高新技术重大项目(编号:2010gxjs054)。

Inflammatory factor release from leukocyte- and platelet-rich plasma gel

Wen Tian-yang1, Wang Ai-hong2, Xu Zhang-rong2   

  1. 1 Department of Endocrinology, the 306th Teaching Hospital of PLA, Peking University, Beijing  100101, China
    2 Department of Endocrinology, Diabetes Center, the 306th Hospital of PLA, Beijing  100101, China
  • Received:2013-02-04 Revised:2013-03-26 Online:2013-04-16 Published:2013-04-16
  • Contact: Xu Zhang-rong, Master, Chief physician, Department of Endocrinology, Diabetes Center, the 306th Hospital of PLA, Beijing 100101, China xzr1021@vip.sina.com
  • About author:Wen Tian-yang★, Studying for master’s degree, Department of Endocrinology, the 306th Teaching Hospital of PLA, Peking University, Beijing 100101, China pekingkw@163.com
  • Supported by:

    the Military Clinical High and New Technology in 2010, No. 2010gxjs054*

摘要:

背景:目前对富白细胞-血小板血浆凝胶的研究主要集中在生长因子的释放及其促进组织和创面生长的作用机制方面。
目的:通过测定富白细胞-血小板血浆凝胶中释放的白细胞介素1,4,6和血小板源性生长因子BB、转化生长因子β、血管内皮生长因子的水平,观察富白细胞-血小板血浆凝胶超微结构,对其抗菌作用和促进溃疡愈合的作用机制进行进一步探讨。
方法:取健康志愿者空腹静脉血离心、分离得到富白细胞-血小板血浆,再以10∶1 的比例加入激活剂后混匀得富白细胞-血小板血浆凝胶。将凝胶保存在DMEM培养基中,分别于培养1,3,7,14,21 d后收集含有渗出液的培养基进行实验。
结果与结论:酶联免疫吸附法检测结果显示,健康志愿者富白细胞-血小板血浆凝胶中各类白细胞所占比例与全血有所不同,淋巴细胞所占比例最大。白细胞介素1在培养0-1 d达到峰值(P < 0.05),之后逐渐下降。白细胞介素4各时间段释放量无差异。白细胞介素6的释放量在培养0-1 d,2-3 d和4-7 d保持较高水平,培养8-14 d和15-21 d释放量明显下降(P < 0.05)。血小板源性生长因子BB和转化生长因子β在培养1 d释放量最大(P < 0.05),之后迅速下降。血管内皮生长因子表现为培养7 d逐渐上升,培养8-21 d缓慢下降。扫描电镜观察可见,凝胶中绝大部分白细胞为淋巴细胞。结果证实,富白细胞-血小板血浆凝胶的促进创面愈合的机制除与血小板源性生长因子BB、转化生长因子β、血管内皮生长因子的释放有关外,可能与富集更多的淋巴细胞及白细胞介素1,4,6的释放有关。

关键词: 生物材料, 细胞外基质材料, 富白细胞-血小板血浆, 凝胶, 白细胞, 炎性因子, 其他基金

Abstract:

BACKGROUND: Current studies about leukocyte- and platelet-rich plasma gel mainly focus on growth factor release and the mechanism underlying promoting tissue growth and wound healing.
OBJECTIVE: To investigate the mechanism of leukocyte- and platelet-rich plasma gel by measuring the levels of interleukin-1, interleukin-4, interleukin-6, platelet-derived growth factor-BB, transforming growth factor-β1, and vascular endothelial growth factor released from leukocyte- and platelet-rich plasma gel and observing the ultrastructure of leukocyte- and platelet-rich plasma gel.
METHODS: Blood samples were collected from 12 healthy volunteers. Leukocyte- and platelet-rich plasma was produced by two-step centrifugation, and leukocyte- and platelet-rich plasma gel was obtained by combining the leukocyte- and platelet-rich plasma with thrombin and calcium gluconate (10:1). The leukocyte- and platelet-rich plasma gel was preserved in Dulbecco’s modified Eagle’s medium, and the Dulbecco’s modified Eagle’s medium including exudates of leukocyte- and platelet-rich plasma gel was collected at days 1, 3, 7, 14, 21.
RESULTS AND CONCLUSION: Enzyme linked immunoabsorbent assay showed that the leukocyte formula in the leukocyte- and platelet-rich plasma gel was different from that in the whole blood, and lymphocytes shared the largest proportion. Interleukin-1 level peaked at 0-1 day of culture (P < 0.05), and then gradually decreased. Interleukin-4 level showed no changes at different periods. Interleukin-6 maintained a higher release at 0-1, 2-3, and 4-7 days, but dramatically reduced at 8-14 and 15-21 days of culture (P < 0.05). The release amount of platelet-derived growth factor-BB, transforming growth factor-β1 reached the peak at 1 day of culture (P < 0.05), and then exhibited a raped decline. The release amount of vascular endothelial growth factor gradually increased at 7 days of culture, and then gradually declined at 8-21 days of culture. Under the scanning electron microscope, vast majority of leukocytes in the leukocyte- and platelet-rich plasma gel were confirmed as lymphocytes. Results showed that besides the expression of growth factors such as platelet-derived growth factor-BB, transforming growth factor-β1, and vascular endothelial growth factor, the concentrations and components change of lymphocytes and expression of inflammatory factors such as interleukin-1, interleukin-4, and interleukin-6 might be one of the mechanisms by which leukocyte- and platelet-rich plasma gel can promote wound healing.

Key words: biomaterials, extracellular matrix materials, leukocyte-and platelet-rich plasma, gel, leukocytes, inflammatory factors, other grants-supported paper

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