中国组织工程研究 ›› 2018, Vol. 22 ›› Issue (8): 1205-1210.doi: 10.3969/j.issn.2095-4344.0138

• 皮肤粘膜组织构建 skin and mucosal tissue construction • 上一篇    下一篇

比较两种酶消化法对真皮成纤维细胞的影响

郭吉安,余丕军,王露萍,石莹莹,柳  逸,陈  炜   

  1. 江苏大学附属上海市第八人民医院医学美容科,上海市  200235
  • 收稿日期:2017-10-17 出版日期:2018-03-18 发布日期:2018-03-18
  • 通讯作者: 陈炜,博士,教授,主任医师,硕士生导师,江苏大学附属上海市第八人民医院医学美容科,上海市 200235
  • 作者简介:郭吉安,男,1989年生,上海市人,汉族,江苏大学医学院在读硕士,主要从事脂肪干细胞、组织工程方面的研究。
  • 基金资助:

    上海市卫生计划和生育委员会科研项目[20154Y0198];上海市徐汇区医学科研项目[SHXH201606];江苏大学医学临床科技发展基金项目[JLY20160077]

Human dermal fibroblast isolation using two enzyme digestion methods: a comparative study

Guo Ji-an, Yu Pi-jun, Wang Lu-ping, Shi Ying-ying, Liu Yi, Chen Wei   

  1. Department of Plastic Surgery, Shanghai Eighth People’s Hospital Affiliated to Jiangsu University, Shanghai 200235, China
  • Received:2017-10-17 Online:2018-03-18 Published:2018-03-18
  • Contact: Chen Wei, M.D., Professor, Chief physician, Master’s supervisor, Department of Plastic Surgery, Shanghai Eighth People’s Hospital Affiliated to Jiangsu University, Shanghai 200235, China
  • About author:Guo Ji-an, Master candidate, Department of Plastic Surgery, Shanghai Eighth People’s Hospital Affiliated to Jiangsu University, Shanghai 200235, China
  • Supported by:

    the Shanghai Municipal Commission of Health and Family Planning, No. 20154Y0198; Xuhui District Medical Research Project of Shanghai, No. SHXH201606; the Clinical Medical Science and Technology Development Foundation of Jiangsu University, No. JLY20160077

摘要:

文章快速阅读:

文题释义:
胶原酶:按其存在的方式不同可分为人体内源性胶原酶和药用胶原酶两种。人体内源性胶原酶是指人体内部本身所具有的胶原酶,如牙龈、触膜等上皮组织和关节滑膜、椎间盘内都不同程度的存在着这种胶原酶,它在体内胶原蛋白的分解过程中发挥着不可或缺的作用。药用胶原酶是指利用生物制药的高科技手段从溶组织梭状芽孢杆菌的发酵液中提取、纯化并精制而得的白色或类白色无菌冻干粉针生物制剂。 
酶消化法:酶消化法是指利用蛋白酶,通过消化分解组织块,从而得到单个细胞的方法,是目前科学研究中最常用的提取原代细胞和将融合细胞分离为单个细胞的方法。
摘要
背景:
目前真皮成纤维细胞研究应用广泛、需求量大、分离方法多,但是用于细胞分离培养的酶消化法尚未有对比研究。
目的:比较两种酶消化方法分离的真皮成纤维细胞的细胞产量、形态、迁移、增殖4个方面的差异。
方法:分别使用中性蛋白酶+胶原酶或胰蛋白酶分离消化真皮成纤维细胞,并进行细胞计数,原代培养并观察细胞形态学差异,采用细胞划痕实验观察细胞迁移能力并使用CCK-8检测细胞增殖活力。
结果与结论:①采用中性蛋白酶+胶原酶消化的成纤维细胞在接种后六七天后融合,通过胰蛋白酶消化分离的成纤维细胞在八九天后融合,两种酶消化法都可获得真皮成纤维细胞;②与胰蛋白酶消化组相比,中性蛋白酶+胶原酶消化组的细胞产量显著增加;③划痕实验结果显示,胰蛋白酶消化的真皮成纤维细胞迁移速度较中性蛋白酶+胶原酶消化的细胞显著减慢;④两种酶消化方法分离的真皮成纤维细胞生长曲线均显示细胞数与培养时间呈正相关关系,在第3,4和5天,中性蛋白酶+胶原酶组的成纤维细胞的吸光度均显着高于胰蛋白酶组细胞的吸光度;⑤结果表明,与胰蛋白酶消化相比,用中性蛋白酶+胶原酶消化的细胞产量、迁移、增殖能力均更高;提示中性蛋白酶+胶原酶消化法优于胰蛋白酶消化法。

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
ORCID:0000-0002-8730-6816(郭吉安)

关键词: 真皮成纤维细胞, 细胞培养, 组织工程, 中性蛋白酶, 胶原酶, 胰蛋白酶, 消化, 组织构建, 培养

Abstract:

BACKGROUND: Dermal fibroblasts are widely used and demanded, and there are various isolation methods, but no comparative studies on enzyme digestion methods are reported.
OBJECTIVE: To compare the cell count, morphology, migration and proliferation of human dermal fibroblasts isolated by two enzyme digestion methods.
METHODS: Human dermal fibroblasts were isolated using either dispase-collagenase or trypsin, and their cell yield and viability were assessed by morphology, cell count and proliferation curve by cell counting-kit 8 assay. The ability of migration was observed by cell scratch test.
RESULTS AND CONCLUSION: The fibroblasts digested with dispase-collagenase were fused at 6-7 days after inoculation, and the cells isolated by trypsin digestion were fused at 8-9 days after inoculation. Fibroblasts could be obtained by both two digestion methods. The production in the dispase-collagenase group was significantly higher than that in the trypsin group. The migration rate in the dispase-collagenase group was significantly faster than that in the trypsin group. The growth cures of the human dermal fibroblasts in the two groups revealed that the cell count was positively correlated with time, and the absorbance values of the dermal fibroblasts in the dispase-collagenase group were significantly higher than those in the trypsin group at 3, 4 and 5 days after incubation. To conclude, the cell yields, migration and proliferation of dermal fibroblasts digested with dispase-collagenase are significantly higher than those of the cells digested by trypsin, indicating that dispase-collagenase digestion results in better isolation and viability of dermal fibroblasts from the dermis.

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

Key words: Fibroblasts, Dermis, Collagenases, Tissue Engineering

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