中国组织工程研究 ›› 2022, Vol. 26 ›› Issue (13): 2040-2044.doi: 10.12307/2022.330

• 干细胞培养与分化 stem cell culture and differentiation • 上一篇    下一篇

植物源神经导管与鼻黏膜外胚层间充质干细胞的生物相容性

郑又菲1,2,史文涛2,刘效谷2,庄  琴2,吕德民1,2,张佳音2,袁依雯2,张志坚2,徐晓峰1,2   

  1. 1江苏大学附属医院脊柱一科,江苏省镇江市  212000;2江苏大学医学院,江苏省镇江市  212000
  • 收稿日期:2020-12-07 修回日期:2020-12-11 接受日期:2021-01-27 出版日期:2022-05-08 发布日期:2021-12-20
  • 通讯作者: 徐晓峰,主任医师,江苏大学附属医院骨科,江苏省镇江市 212000;江苏大学医学院,江苏省镇江市 212000
  • 作者简介:郑又菲,男,1994年生,汉族,江苏大学在读硕士,医师,主要从事外周神经损伤及生物工程方向的研究。
  • 基金资助:
    国家自然科学基金地区科学基金项目(81571830),项目负责人:张志坚;江苏大学临床医学科技发展基金项目(JLY20180040),项目负责人:史文涛

Biocompatibility of plant-derived nerve conduits to nasal ectomesenchymal stem cells

Zheng Youfei1, 2, Shi Wentao2, Liu Xiaogu2, Zhuang Qin2, Lü Demin1, 2, Zhang Jiayin2, Yuan Yiwen2, Zhang Zhijian2, Xu Xiaofeng1, 2   

  1. 1First Department of Orthopedics, Affiliated Hospital of Jiangsu University, Zhenjiang 212000, Jiangsu Province, China; 2Medical School, Jiangsu University, Zhenjiang 212000, Jiangsu Province, China
  • Received:2020-12-07 Revised:2020-12-11 Accepted:2021-01-27 Online:2022-05-08 Published:2021-12-20
  • Contact: Xu Xiaofeng, Chief physician, First Department of Orthopedics, Affiliated Hospital of Jiangsu University, Zhenjiang 212000, Jiangsu Province, China; Medical School, Jiangsu University, Zhenjiang 212000, Jiangsu Province, China
  • About author:Zheng Youfei, Master candidate, Physician, First Department of Orthopedics, Affiliated Hospital of Jiangsu University, Zhenjiang 212000, Jiangsu Province, China; Medical School, Jiangsu University, Zhenjiang 212000, Jiangsu Province, China
  • Supported by:
    the National Natural Science Foundation of China, No. 81571830 (to ZZJ); the Clinical Medicine Science and Technology Development Project of Jiangsu University, No. JLY20180040 (to SWT)

摘要:

文题释义:
植物源神经导管:选取植物管状茎秆,去除植物蛋白,保留其纤维性管状外形,并在其表面修饰细胞外基质制成的神经导管,可通过进一步研究,尝试用于桥接周围神经缺损断端。
生物相容性:文章对培养的鼻黏膜来源外胚层间充质干细胞与植物源神经导管进行生物相容性研究,在提取SD大鼠鼻黏膜来源外胚层间充质干细胞并培养和鉴定后,将细胞种植于神经导管表面,通过蛋白免疫印迹、免疫荧光及MTT细胞活性检测等方法综合评估该神经导管与鼻黏膜来源外胚层间充质干细胞的生物相容性。

背景:神经导管桥接神经间隙替代自体神经移植修复周围神经损伤的报道很多,鼻黏膜来源外胚层间充质干细胞是移植治疗周围神经损伤的重要种子细胞。
目的:研究鼻黏膜来源外胚层间充质干细胞与植物源神经导管的生物相容性及其在导管表面的自发分化生长情况。
方法:取自然界内径为0.2 cm的植物管状茎秆,用物理和化学方法去除茎秆的肉质,保留其纤维性管状外形,用层粘连蛋白以京尼平交联修饰植物导管表面;体外分离和培养鼻黏膜来源外胚层间充质干细胞,并分为3组,分别种植于空白培养板、未修饰导管及修饰导管表面,于1,3,5,7,14 d以MTT法检测细胞活性,体外评估二者的生物相容性;细胞种植并培养2周后以细胞蛋白免疫印迹及免疫荧光实验观察该导管对鼻黏膜来源外胚层间充质干细胞自发分化的影响。
结果与结论:①鼻黏膜来源外胚层间充质干细胞在植物导管纤维表面生长良好且成定向排列,植物导管与鼻黏膜来源外胚层间充质干细胞具有良好的生物相容性;②经层粘连蛋白修饰的导管表面的鼻黏膜来源外胚层间充质干细胞表达MBP和S100,且均高于空白组及未修饰导管组;③结果表明,层粘连蛋白修饰的植物源神经导管可促进鼻黏膜来源外胚层间充质干细胞向许旺细胞分化,可为天然植物源神经导管负载种子细胞移植修复周围神经缺损提供新的理论依据。

https://orcid.org/0000-0001-7059-8384(郑又菲);https://orcid.org/0000-0001-6120-0530 (徐晓峰)

中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程


关键词: 干细胞, 移植, 鼻黏膜, 外胚层间充质干细胞, 植物纤维, 神经导管, 生物相容性, 周围神经损伤

Abstract: BACKGROUND: There are many reports on the repair of peripheral nerve injury by nerve conduit bridging nerve gap instead of autogenous nerve graft. The nasal ectomesenchymal stem cell is an important seed cell for the transplantation of peripheral nerve injury.
OBJECTIVE: To investigate the biocompatibility of nasal ectomesenchymal stem cells and plant-derived neural conduits and the spontaneous differentiation and growth of nasal ectomesenchymal stem cells on the surface of the conduit.
METHODS: Tube culms with an inner diameter of 0.2 cm were selected in nature. After physical and chemical removal of pulp, their fibrous tubular shape was retained. The extracellular matrix protein laminin was modified by genipin. Nasal ectomesenchymal stem cells were isolated and cultured in vitro, and divided into three groups: the blank group (blank culture plate), the unmodified group (unmodified conduit) and the modified group (modified conduit). MTT assay was performed at 1, 3, 5, 7, and 14 days to evaluate cell viability. Biocompatibility was assessed in vitro. The effect of the conduit on the spontaneous differentiation of nasal mucosa-derived ectodermal mesenchymal stem cell was observed by immunoblotting and immunofluorescence two weeks after cell implantation and culture. 
RESULTS AND CONCLUSION: (1) Nasal ectomesenchymal stem cells grow well and were oriented on the surface of plant duct fibers, and plant conduits were biocompatible with nasal ectomesenchymal stem cells. (2) The expression levels of MBP and S100 in nasal ectomesenchymal stem cells implanted on the surface of the catheter were higher than those in the blank and unmodified groups. (3) It is concluded that the differentiation of nasal ectomesenchymal stem cells into Schwann cells can be promoted by laminin-modified plant-derived nerve conduits, which may provide a new theoretical basis for the transplantation and repair of peripheral nerve cells loaded with natural plant-derived nerve conduits.

Key words: stem cells, transplantation, nasal mucosa, ectodermal mesenchymal stem cell, fiber plants, nerve conduit, biocompatibility, peripheral nerve injury

中图分类号: