中国组织工程研究 ›› 2025, Vol. 29 ›› Issue (31): 6656-6660.doi: 10.12307/2025.546

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

C57BL/6新生乳鼠肠神经胶质细胞的提取与培养

赵  楠1,丁  勇1,修  航2,刘鹏飞2,梁国刚2   

  1. 大连医科大学附属第一医院,1中西医结合临床国家重点学科实验室,2普外三科,辽宁省大连市   116000
  • 收稿日期:2024-06-27 接受日期:2024-08-31 出版日期:2025-11-08 发布日期:2025-02-20
  • 通讯作者: 梁国刚,博士,主任医师,大连医科大学附属第一医院普外三科,辽宁省大连市 116000
  • 作者简介:赵楠,女,1996年生,山西省运城市人,汉族,大连医科大学在读硕士,主要从事中西医结合胃肠动力障碍方面的研究。
  • 基金资助:
    国家自然科学基金项目(81873164),项目负责人:梁国刚

Extraction and culture of enteric glial cells from C57BL/6 newborn neonatal mice

Zhao Nan1, Ding Yong1, Xiu Hang2, Liu Pengfei2, Liang Guogang2   

  1. 1National Key Laboratory of Clinical Integration of Traditional Chinese and Western Medicine, First Affiliated Hospital of Dalian Medical University, Dalian 116000, Liaoning Province, China; 2Third Department of General Surgery, First Affiliated Hospital of Dalian Medical University, Dalian 116000, Liaoning Province, China
  • Received:2024-06-27 Accepted:2024-08-31 Online:2025-11-08 Published:2025-02-20
  • Contact: Liang Guogang, MD, Chief physician, Third Department of General Surgery, First Affiliated Hospital of Dalian Medical University, Dalian 116000, Liaoning Province, China
  • About author:Zhao Nan, Master candidate, National Key Laboratory of Clinical Integration of Traditional Chinese and Western Medicine, First Affiliated Hospital of Dalian Medical University, Dalian 116000, Liaoning Province, China
  • Supported by:
    National Natural Science Foundation of China, No. 81873164 (to LGG)

摘要:

文题释义:

肠神经胶质细胞:是肠神经系统内固有的免疫效应细胞,其分泌的激素、神经递质或蛋白等细胞外信号可与肠神经元上特异性受体结合,促进肠神经元的存活或启动神经元发生程序性细胞死亡,从而对肠神经系统内肠神经元的数量进行调控。 
肠神经系统:中枢神经系统外最大的神经元和胶质细胞的集合体,主要由肌间神经丛和黏膜下神经丛两大神经丛组成神经网络结构,是胃肠道功能和神经反射通路的主要调节器,被称为“第二大脑”或“肠脑”,可独立于中枢神经系统控制肠道运动,协调黏膜的液体交换、局部血流和运动模式以及内分泌功能,并调控对感觉刺激做出反应的上皮细胞活动。

摘要
背景:炎症性肠病的发病机制涉及炎症、免疫激活、内脏高敏感、肠道菌群失调等,其中炎症促使免疫细胞释放炎症递质,损伤肠神经系统。肠神经胶质细胞是肠神经系统的重要组成部分,是研究肠道神经炎症的良好细胞。原代肠神经胶质细胞对于探索肠神经系统疾病的细胞疗法具有至关重要的作用,而目前获得该细胞的方法大多较繁琐,因此找到一种便捷、快速提取该细胞的方法十分关键。
目的:建立优化分离培养及鉴定小鼠肠神经胶质细胞的方法。
方法:通过过量吸入异氟烷处死0-7 d龄C57BL/6乳鼠,将其浸泡于体积分数75%乙醇消毒后腹正中线开腹取出十二指肠(幽门下1 cm至屈氏韧带上1 cm),用1 mL注射器充满DPBS反复冲洗肠内容物至肠道半透明,剥离肠系膜及血管。将十二指肠剪至1 mm大小,放入含0.25%EDTA胰酶中消化20 min后加入等量DMEM/F12完全培养基终止消化,用100 μm细胞滤器过滤后离心,加入1 mL DMEM/F12完全培养基重悬后培养细胞,细胞贴壁生长密度至80%时消化传代。细胞培养至第3代时用标记肠神经胶质细胞的胶质纤维酸性蛋白进行免疫荧光鉴定。
结果与结论:分离培养的细胞胶体饱满,突起向外延展,可以传代,胶质纤维酸性蛋白染色阳性。该方法可成功分离培养肠神经胶质细胞,且操作简便,为肠神经系统的病理生理学研究提供稳定的模型。

关键词: 肠神经胶质细胞, 乳鼠, 细胞培养, 炎症性肠病, 肠神经系统, 胶质纤维酸性蛋白, 工程化细胞

Abstract: BACKGROUND: The pathogenesis of inflammatory bowel disease involves inflammation, immune activation, visceral hypersensitivity, and dysbiosis of the gut microbiota. Inflammation promotes the release of inflammatory mediators by immune cells, damaging the enteric nervous system. Enteric glial cells are an important component of the intestinal nervous system and are excellent cells for studying intestinal neuroinflammation. Primary enteric glial cells play a crucial role in exploring cell therapies for intestinal nervous system diseases. Currently, the methods for obtaining these cells are mostly cumbersome. Therefore, finding a convenient and fast method for extracting this cell is crucial. 
OBJECTIVE: To establish a method for optimizing the isolation, culture, and identification of mouse enteric glial cells. 
METHODS: 0-7-day-old C57BL/6 neonatal mice were euthanized by excessive inhalation of isoflurane. After soaking in 75% alcohol for disinfection, the duodenum (1 cm below the pylorus to 1 cm above the Qu's ligament) was removed by laparotomy at the midline of the abdomen. A 1 mL syringe was filled with DPBS and the intestinal contents were repeatedly rinsed until the intestine became translucent, and the mesentery and blood vessels were peeled off. The duodenum was cut to a size of 1 mm and digested in 0.25% EDTA trypsin for 20 minutes. Then an equal amount of DMEM/F12 complete culture medium was added to terminate digestion. The liquid was filtered through a 100 μm cell filter, centrifuged, and the cells were resuspended in 1 mL of DMEM/F12 complete culture medium. When the cell adhesion growth density reached 80%, cells were digested for subculture. When cells were cultured to the third generation, glial fibrillary acid protein labeled with enteric glial cells was used for identification by immunofluorescence method.
RESULTS AND CONCLUSION: The isolated and cultured cells were full of colloids, with protrusions extending outward and passable. Glial fibrillary acid protein staining was positive. This method can successfully isolate and culture enteric glial cells and is easy to operate, providing a stable model for the study of the pathophysiology of the enteric nervous system.

Key words: enteric glial cell, neonatal mouse, cell culture, inflammatory bowel disease, enteric nervous system, glial fibrillary acidic protein, engineered cell

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