中国组织工程研究 ›› 2025, Vol. 29 ›› Issue (10): 2091-2096.doi: 10.12307/2025.410

• 生物材料基础实验 basic experiments of biomaterials • 上一篇    下一篇

基于微流控芯片评估富血小板血浆促进子宫内膜细胞的增殖

闻哲嘉,吕  芳   

  1. 苏州大学附属第二医院生殖中心,江苏省苏州市   215004
  • 收稿日期:2024-01-11 接受日期:2024-03-06 出版日期:2025-04-08 发布日期:2024-08-22
  • 通讯作者: 吕芳,博士,研究员,副教授,硕士生导师,苏州大学附属第二医院生殖医学中心,江苏省苏州市 215004
  • 作者简介:闻哲嘉,女,1993年生,江苏省苏州市人,汉族,苏州大学附属第二医院在读硕士,主要从事微流控芯片和子宫内膜间质细胞的生物学行为方面的研究。
  • 基金资助:
    苏州市医疗卫生科技创新应用基础研究(SKJY2021096),项目负责人:吕芳;苏州大学附属第二医院科教兴院人才托举项目A类(XKTJ-RC202002),项目负责人:吕芳;国家卫生健康委员会生殖健康药具重点实验室开放课题(KF2023-2),项目负责人:吕芳

Promotion of endometrial cell proliferation evaluated by platelet-rich plasma based on microfluidic chips

Wen Zhejia, Lyu Fang   

  1. Reproductive Medicine Center, Second Affiliated Hospital of Soochow University, Suzhou 215004, Jiangsu Province, China
  • Received:2024-01-11 Accepted:2024-03-06 Online:2025-04-08 Published:2024-08-22
  • Contact: Lyu Fang, PhD, Researcher, Associate professor, Master’s supervisor, Reproductive Medicine Center, Second Affiliated Hospital of Soochow University, Suzhou 215004, Jiangsu Province, China
  • About author:Wen Zhejia, Master candidate, Reproductive Medicine Center, Second Affiliated Hospital of Soochow University, Suzhou 215004, Jiangsu Province, China
  • Supported by:
    Basic Research on Innovative Application of Medical and Health Technology in Suzhou City, No. SKJY2021096 (to LF); Class A Talent Support Project for Science and Education Revitalization of Affiliated Second Hospital of Suzhou University, No. XKTJ-RC202002 (to LF); Open Project of Key Laboratory of Reproductive Health Pharmaceuticals of National Health Commission, No. KF2023-2 (to LF)

摘要:

文题释义:
微流控芯片:通过将样品制备、反应、分离、检测、细胞培养、分选、裂解等基本操作单元集成或基本集成到一块几平方厘米甚至更小的芯片上,由微通道形成网络,实现控制流体贯穿整个体外培养系统。
富血小板血浆:通过离心自体全血并从中提取出的血小板浓缩物。富血小板血浆中含有大量的生长因子(如血小板源性生长因子、转化生长因子β、胰岛素样生长因子1等)以及蛋白质和其他生物活性成分。

背景:富血小板血浆可促进薄型子宫内膜细胞的增殖,但存在剂量难以控制、取样困难等问题。微流控芯片具有高通量、低消耗、操作简便等优点,为模拟子宫内膜细胞在体微环境提供了新途径。
目的:利用三通道微流控芯片构建富血小板血浆促进子宫内膜细胞增殖的研究模型。
方法:从1名女性外周静脉血中提取富血小板血浆。采用含不同浓度[0%(对照),0.5%,1%,2%]富血小板血浆的无血清细胞培养基培养人子宫内膜间质细胞,采用划痕实验检测细胞迁移,CCK-8法检测细胞增殖。利用聚二甲基硅氧烷胶制备微流控芯片,该微流控芯片设计有3个通道,中间通道为细胞外基质水凝胶通道,左右两侧分别为人子宫内膜间质细胞及富血小板血浆通道,3个通道之间保存有可以相互沟通以及实现物质交换的面积,实验组两侧通道分别加入人子宫内膜间质细胞(绿色荧光蛋白GFP标记)和含0.5%富血小板血浆的无血清培养基,对照组两侧通道分别加入人子宫内膜间质细胞(绿色荧光蛋白GFP标记)和无血清细胞培养基,共培养48 h后,采用Ki67免疫荧光染色观察细胞增殖与迁移。
结果与结论:①细胞划痕实验和CCK-8检测结果显示,与对照组相比,0.5%,1%,2%浓度的富血小板血浆可促进人子宫内膜间质细胞的迁移与增殖(P < 0.05),并且0.5%浓度富血小板血浆的促进细胞迁移与增殖作用强于其他2个浓度(P < 0.05);②Ki67免疫荧光染色结果显示,与对照组相比,实验组人子宫内膜间质细胞的增殖和迁移能力更强;③实验证实通过三通道微流控芯片可以模拟子宫内膜细胞的微环境,同时利用该系统验证了富血小板血浆可显著促进子宫内膜间质细胞的增殖与迁移。
https://orcid.org/0009-0001-5881-7561 (闻哲嘉) 

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: 微流控芯片, 富血小板血浆, 子宫内膜间质细胞, 子宫内膜增殖, 迁移, 细胞外基质, 薄型子宫内膜, 子宫内膜相关疾病

Abstract: BACKGROUND: Platelet-rich plasma is used to promote the proliferation of thin endometrial cells, but there are problems with difficult dose control and sampling. Microfluidic-chips have the advantages of high throughput, low consumption, and simplified operation, providing a new approach to simulate the in vivo microenvironment of endometrial cells. 
OBJECTIVE: To establish a model of promoting endometrial cell proliferation with platelet-rich plasma by the three-channel microfluidic-chip.
METHODS: Platelet-rich plasma was extracted from peripheral venous blood of a female. Human endometrial stromal cells were cultured in serum-free cell media with different concentrations of platelet-rich plasma [0%(control), 0.5%, 1%, and 2%]. Cell migration was detected by scratch test. Cell proliferation was
detected by CCK-8 assay. A microfluidic chip was prepared by using polydimethylsiloxane adhesive. The microfluidic chip was designed with three channels. The middle channel was the extracellular matrix hydrogel channel. Human endometrial stromal cells and platelet-rich plasma channels were found on the left and right sides. There was an area between the three channels that could communicate with each other and realize material exchange. Human endometrial stromal cells (labeled with green fluorescent protein GFP) and serum-free medium containing 0.5% platelet-rich plasma were added to both sides of the experimental group. Human endometrial stromal cells (labeled with green fluorescent protein GFP) and serum-free cell media were added to both sides of the control group. After co-culture for 48 hours, the cell proliferation and migration were observed by Ki67 immunofluorescence staining. 
RESLUTS AND CONCLUSION: (1) The results of cell scratch test and CCK-8 assay showed that compared with the control group, platelet-rich plasma at 0.5%, 1%, and 2% concentrations could promote the migration and proliferation of human endometrial stromal cells (P < 0.05). In addition, the promotion of cell migration and proliferation of platelet-rich plasma with 0.5% concentration was stronger than that of the other two concentrations (P < 0.05). (2) Ki67 immunofluorescence staining showed that compared with the control group, the proliferation and migration abilities of endometrial stromal cells were stronger in the experimental group. (3) The experiment proves that the microenvironment of endometrial cells can be simulated by the three-channel microfluidic chip. At the same time, the system has proven that platelet-rich plasma can significantly promote the proliferation and migration of endometrial stromal cells. 

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

Key words: microfluidic-chip, platelet-rich plasma, endometrial stromal cell, endometrium proliferation, migration, extracellular matrix, thin endometrium, endometrial-related disease

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