中国组织工程研究 ›› 2022, Vol. 26 ›› Issue (21): 3312-3318.doi: 10.12307/2022.637

• 材料生物相容性 material biocompatibility • 上一篇    下一篇

蛋白芯片筛选用于培养Muse细胞的纤维蛋白原和明胶组合基质

李秀亚1,盛  扬1,王圣依2,黎  悦2,张汝芝2,潘  艳3,孙一新1,邓林红3,Mark Bradley4,张  嵘1   

  1. 1常州大学材料科学与工程学院,江苏省常州市  213164;2苏州大学附属第三医院皮肤性病科,江苏省常州市  213000;3常州大学生物医学工程与健康科学研究院,江苏省常州市  213164;4爱丁堡大学化学学院,苏格兰爱丁堡市  EH93 JJ1
  • 收稿日期:2021-03-18 接受日期:2021-04-28 出版日期:2022-07-28 发布日期:2022-01-27
  • 通讯作者: 张嵘,教授,常州大学材料科学与工程学院,江苏省常州市 21316
  • 作者简介:李秀亚,女,1997年生,江苏省南通市人,汉族,常州大学材料科学与工程学院在读硕士,主要从事生物医用材料研究。
  • 基金资助:
    江苏省六大人才高峰创新团队项目(SWYY-CXTD-001),项目负责人:张嵘;常州市科技局国际合作项目(CZ20190019),项目负责人:张嵘

Preparation of protein chips for screening matrix for Muse cell culture based on fibrinogen and gelatin

Li Xiuya1, Sheng Yang1, Wang Shengyi2, Li Yue2, Zhang Ruzhi2, Pan Yan3, Sun Yixin1, Deng Linhong3, Mark Bradley4, Zhang Rong1    

  1. 1School of Materials Science and Engineering, Changzhou University, Changzhou 213164, Jiangsu Province, China; 2Department of Dermatology and Venereology, Third Affiliated Hospital of Soochow University, Changzhou 213000, Jiangsu Province, China; 3Institute of Biomedical Engineering and Health Sciences, Changzhou University, Changzhou 213164, Jiangsu Province, China; 4School of Chemistry, University of Edinburgh, Edinburgh EH93 JJ1, Scotland
  • Received:2021-03-18 Accepted:2021-04-28 Online:2022-07-28 Published:2022-01-27
  • Contact: Zhang Rong, Professor, School of Materials Science and Engineering, Changzhou University, Changzhou 213164, Jiangsu Province, China
  • About author:Li Xiuya, Master candidate, School of Materials Science and Engineering, Changzhou University, Changzhou 213164, Jiangsu Province, China
  • Supported by:
    the Six Talent Peak Innovation Team Project of Jiangsu Province, No. SWYY-CXTD-001 (to ZR); Changzhou Science and Technology Bureau International Cooperation Project, No. CZ20190019 (to ZR)

摘要:

文题释义:
蛋白基质:表面用蛋白质修饰的用于细胞体外培养的基质材料,该文中用于Muse细胞的培养。
Muse细胞:为应激耐受多系分化细胞,是在人骨髓与皮肤中发现的新型干细胞,具有多能性、低端粒酶活性及非致瘤性,在再生医疗方面有很大的应用潜力。

背景:Muse细胞在再生医学中具有巨大的医疗潜力,但目前其体外培养需要通过细胞簇悬浮的方法,不利于大规模扩增和应用。蛋白质是细胞外基质的重要组成部分之一,不同的蛋白质在细胞生长过程中起着不同的作用,因此可以通过高通量的方法快速筛选有利于Muse细胞在二维表面黏附扩增的蛋白质基质材料。
目的:选出合适的蛋白质基材,用于Muse细胞的表面黏附培养和传代。
方法:以牛血清白蛋白、牛血纤维蛋白原和明胶为原料,通过喷墨打印进行点样和蛋白质两两物理混合,制备成蛋白微点阵列芯片,利用高通量筛选方法选出适合Muse细胞黏附的最佳蛋白质组合。采用常规方法在蛋白基材表面进行Muse细胞传代培养并进行表征。
结果与结论:①由高通量筛选出两种有利于原代Muse细胞黏附的蛋白组合,两种组合分别为:牛血清白蛋白与明胶、牛血纤维蛋白原与明胶,组合比例均为7/17;②利用CCK8法测试原代Muse细胞在两种组合蛋白包被板的生长状况,各组细胞都呈现正常的增殖情况;经过6 d的培养,在牛血纤维蛋白原与明胶组合包被板上培养的细胞呈现较好的增殖状态;③通过对在蛋白包被板上传代培养的1代及3代Muse细胞的免疫荧光染色结果进行分析,结果显示,由牛血纤维蛋白原和明胶按7/17比例混合制备的基材能支持Muse细胞至少3代的黏附培养与扩增,并且维持较好的干细胞特性。

https://orcid.org/0000-0001-7295-3116 (李秀亚) 

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: Muse细胞, 细胞医疗, 细胞扩增, 牛血清白蛋白, 牛血纤维蛋白原, 明胶, 高通量筛选, 干细胞特性

Abstract: BACKGROUND: Stress-tolerant multilineage differentiated (Muse) cells have excellent medical potential for regenerative medicine. However, at present, Muse cells need to be cultured and proliferated in vitro by suspension of cell aggregation, which is not conducive to large-scale expansion and application. Protein is one of the important components of extracellular matrix. Different proteins play different roles in cell growth. Therefore, the high-throughput method can be used to rapidly screen protein matrix that is conducive to the adhesion and proliferation of Muse cells on a two-dimensional surface. 
OBJECTIVE: To identify suitable protein substrates for surface adhesion and passaging of Muse cells.
METHODS: Bovine serum albumin, bovine blood fibrin, and gelatin were used as raw materials, and their solutions were printed on glass slides by an ink jet printer and mixed on site to prepare protein microarray chips. The optimal protein combination for the adhesion of Muse cells was identified by using high-throughput screening approach. The Muse cells were cultured and passaged on the identified protein substrates for characterization. 
RESULTS AND CONCLUSION: (1) Two protein combinations were obtained by high-throughput screening, which were beneficial to the adhesion of primary Muse cells. They were bovine serum albumin/gelatin and bovine blood fibrinogen/gelatin, with combination ratios of 7/17 for both. (2) CCK-8 assay showed that Muse cells proliferated well in all groups. Among them, cells cultured on plates coated with bovine blood fibrinogen/gelatin proliferated well in 6 days. (3) By analyzing the immunofluorescence staining results of passages 1 and 3 of Muse cells cultured on the protein-coated plate, it was found that the combination of bovine blood fibrinogen and gelatin with a ratio of 7/17 in weight supported the adhesion and proliferation of Muse cells for at least 3 passages, maintaining good stem cell characteristics. 

Key words: Muse cell, cell therapy, cell amplification, bovine serum albumin, bovine blood fibrinogen, gelatin, high-throughput screening, stem cell characteristics

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