中国组织工程研究 ›› 2019, Vol. 23 ›› Issue (33): 5328-5333.doi: 10.3969/j.issn.2095-4344.1831

• 骨髓干细胞 bone marrow stem cells • 上一篇    下一篇

白细胞介素1β联合肝细胞生长因子体外培养骨髓间充质干细胞向肝细胞样细胞的分化

潘丽娟,王荣丽   

  1. 西南医科大学附属医院,四川省泸州市  646000
  • 修回日期:2019-06-17 出版日期:2019-11-28 发布日期:2019-11-28
  • 通讯作者: 王荣丽,教授,西南医科大学附属医院,四川省泸州市 646000
  • 作者简介:潘丽娟,女,1989年生,四川省乐山市人,西南医科大学毕业,硕士,医师,主要从事感染及感染管理方向研究。
  • 基金资助:

    四川省卫生厅科研项目(110358),项目参与人:潘丽娟

Differentiation of bone marrow mesenchymal stem cells into hepatocytes under induction by interleukin-1 beta combined with hepatocyte growth factor in vitro

Pan Lijuan, Wang Rongli   

  1. Affiliated Hospital of Southwest Medical University, Luzhou 646000, Sichuan Province, China
  • Revised:2019-06-17 Online:2019-11-28 Published:2019-11-28
  • Contact: Wang Rongli, Professor, Affiliated Hospital of Southwest Medical University, Luzhou 646000, Sichuan Province, China
  • About author:Pan Lijuan, Master, Physician, Affiliated Hospital of Southwest Medical University, Luzhou 646000, Sichuan Province, China
  • Supported by:

    the Scientific Research Project of Sichuan Provincial Health Department, No. 110358 (to PLJ [project participant])

摘要:

文章快速阅读:

文题释义:
白细胞介素1β:
在细胞合成及增殖过程中有促进作用,其中白细胞介素1β是白细胞介素1的主要形式。关于白细胞介素1β与肝细胞关系的研究很少。白细胞介素1β主要存在于血液中,能够发挥出与肿瘤坏死因子α类似的生理及代谢作用,并能与肿瘤坏死因子α一起产生协同作用。
肝细胞生长因子:是作为一种能刺激肝细胞增殖的物质而发现的,后来发现肝细胞生长因子还能作用于上皮细胞、造血细胞、血管内皮细胞等多种细胞,是一种可调节多种细胞生长、运动和形态发生的多功能因子。通过旁分泌或自分泌机制,借助上皮间质的相互作用,在胚胎发生、创伤愈合、血管发生、组织器官再生、形态发生和致癌作用等方面发挥重要作用。

 

摘要
背景
:骨髓间充质干细胞具有多系分化潜能,能够分化为多种细胞谱系,目前认为骨髓间充质干细胞是治疗包括肝衰竭在内的各种终末期肝病最有前景的种子细胞。如何对其进行诱导分化是研究的焦点。
目的:探讨肝细胞生长因子联合白细胞介素1β诱导骨髓间充质干细胞分化为肝细胞样细胞的能力,寻找适宜的诱导分化方法。
方法:将第3代骨髓间充质干细胞分为5组,分别为空白对照组、肝细胞生长因子组、肝细胞生长因子+白细胞介素1β低、中、高质量浓度组,其中肝细胞生长因子质量浓度为20 μg/L,白细胞介素1β质量浓度为5,10,20 μg/L。在倒置显微镜下观察细胞形态学变化,采用免疫组化方法于诱导第7,14,21天检测细胞角蛋白18和白蛋白的表达。
结果与结论:①空白对照组细胞无形态学改变,其他4组细胞形态由梭形、棱形逐渐向多角形、类圆形发展,与肝细胞相似;②空白对照组始终未见白蛋白和细胞角蛋白18表达,其他4组均有白蛋白、细胞角蛋白18阳性表达,随着诱导时间延长逐渐增加(P均< 0.05);同一时间点随着白细胞介素1β质量浓度的增加白蛋白及细胞角蛋白18表达增加(P均< 0.05);③白细胞介素1β联合肝细胞生长因子的诱导效果强于单一肝细胞生长因子。在0-20 μg/L范围内,随着白细胞介素1β质量浓度增加,诱导能力加强。


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
ORCID: 0000-0003-1026-562X(潘丽娟)

关键词: 肝衰竭, 骨髓间充质干细胞, 白细胞介素1β, 肝细胞生长因子, 诱导分化, 肝细胞

Abstract:

BACKGROUND: Bone marrow mesenchymal stem cells have multi-lineage differentiation potential and can differentiate into a variety of cell lineages. It is currently considered that bone marrow mesenchymal stem cells are the most promising seed cells for the treatment of various end-stage liver diseases including liver failure. How to induce cell differentiation is the focus of research.
OBJECTIVE: To explore the ability of hepatocyte growth factor combined with interleukin-1β to induce bone marrow mesenchymal stem cells to differentiate into hepatocytes, and to find a suitable induction method.
METHODS: Passage 3 bone marrow mesenchymal stem cells were divided into control group, hepatocyte growth factor group, and low-, middle- and high-dose combined induction group (20 μg/L hepatocyte growth factor+5, 10, 20 μg/L interleukin-1β respectively). Morphological changes of the cells in each group were observed under inverted microscope. Immunohistochemical methods were used to detect expression of cytokeratin 18 and albumin at 7, 14, and 21 days of induction.
RESULTS AND CONCLUSION: There was no morphological change in the control group, whereas in the other four groups, the cells gradually developed from fusiform and prismatic to polygonal and round, similar to the morphology of hepatocytes. No cytokeratin 18 and albumin expression was observed in the control group, while cytokeratin 18 and albumin positively expressed in the other four groups, and the expression levels were gradually increased with the extension of induction time (P < 0.05). At each time point, the expression of albumin and CK18 upregulated with the increase of interleukin-1β concentration (P < 0.05). Therefore, combined use of hepatocyte growth factor and interleukin-1β has better induction effect than hepatocyte growth factor used alone. Moreover, the induction ability of the combined use is strengthened with the increase of interleukin 1β concentration between 0-20 μg/L.

Key words: liver failure, bone marrow mesenchymal stem cells, interleukin 1β, hepatocyte growth factor, induced differentiation, hepatocytes

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