中国组织工程研究 ›› 2017, Vol. 21 ›› Issue (17): 2690-2695.doi: 10.3969/j.issn.2095-4344.2017.17.011

• 干细胞移植 stem cell transplantation • 上一篇    下一篇

脂肪间充质干细胞移植上调肝脏增殖细胞核抗原表达促进肝细胞的再生

史光军1,张亚东2,胡音音3,谭雪莹1   

  1. 1青岛大学附属青岛市市立医院,山东省青岛市  266000;2青岛大学医学院,山东省青岛市  266071;3温州医科大学,浙江省温州市  325000
  • 修回日期:2017-01-13 出版日期:2017-06-18 发布日期:2017-06-29
  • 通讯作者: 谭雪莹,博士,主管技师,青岛大学附属青岛市市立医院,山东省青岛市 266000
  • 作者简介:史光军,男,1966年生,山东省潍坊市人,汉族,2005年华中科技大学同济医学院毕业,博士,主任医师,硕士生导师,主要从事肝胆胰腺外科专业及相关研究。
  • 基金资助:

    山东省医药卫生科技发展计划(2015WS0324)

Human adipose-derived mesenchymal stem cells promote liver cell regeneration by up-regulating the expression of proliferating cell nuclear antigen

Shi Guang-jun1, Zhang Ya-dong2, Hu Yin-yin3, Tan Xue-ying1   

  1. 1Qingdao Municipal Hospital, Qingdao University, Qingdao 266000, Shandong Province, China; 2Medical School of Qingdao University, Qingdao 266071, Shandong Province, China; 3Wenzhou Medical University, Wenzhou 325000, Zhejiang Province, China
  • Revised:2017-01-13 Online:2017-06-18 Published:2017-06-29
  • Contact: Tan Xue-ying, M.D., Technician in charge, Qingdao Municipal Hospital, Qingdao University, Qingdao 266000, Shandong Province, China
  • About author:Shi Guang-jun, M.D., Chief physician, Master’s supervisor, Qingdao Municipal Hospital, Qingdao University, Qingdao 266000, Shandong Province, China
  • Supported by:

    the Medicine & Health Science and Technology Development Plan of Shandong Province, No. 2015WS0324

摘要:

文章快速阅读:

文题释义:
脂肪间充质干细胞:
是一类具有多向分化潜能、免疫调控功能和自主更新能力的干细胞,其取材方便、来源广泛、免疫原性较低,而且增殖速度快、血清选择性较低,近来有研究发现脂肪间充质干细胞移植可明显改善肝衰竭大鼠的肝功能,降低病死率,说明其在肝组织再生领域中具有巨大潜能。
增殖细胞核抗原:是一种分子质量为36 ku的酸性胞核蛋白,其作为DNA聚合酶的推动因子,能与多种蛋白结合,参与细胞凋亡、增殖周期调控、DNA修复等过程,是DNA复制复合体的重要成分,研究发现在变性或衰老细胞中增殖细胞核抗原表达明显降低。因此,增殖细胞核抗原表达可作为反映细胞增殖情况的良好指标。

 

摘要
背景:
脂肪间充质干细胞能够改善肝衰竭大鼠肝功能,在组织工程和细胞移植领域具有重要研究价值。
目的:通过观察人脂肪间充质干细胞治疗肝衰竭大鼠的疗效,探讨其可能的相关生物学机制。
方法:将肝衰竭模型大鼠随机分为模型组、脂肪间充质干细胞组,分别通过尾静脉注射生理盐水或DAPI标记的人脂肪间充质干细胞(3.0×106个)。细胞移植后1,3,7 d,生化法检测各组大鼠血清肝功能,细胞移植后3 d,ELISA法检测血清肿瘤坏死因子α、白细胞介素10水平,苏木精-伊红染色观察肝组织病理学变化,Western blot检测大鼠肝组织内增殖细胞核抗原表达。
结果与结论:①人脂肪间充质干细胞经尾静脉途径移植后可迁移至大鼠肝、肺组织;②细胞移植后1,3 d,脂肪间充质干细胞组大鼠血清谷丙转氨酶、谷草转氨酶水平较模型组显著降低(P < 0.05);③细胞移植后3 d,脂肪间充质干细胞组大鼠血清白细胞介素10、肿瘤坏死因子α水平较模型组显著降低(P < 0.05);④脂肪间充质干细胞组大鼠肝组织变性、坏死减轻;⑤脂肪间充质干细胞组增殖细胞核抗原蛋白表达较模型组显著上调;⑥结果表明,人脂肪间充质干细胞可明显抑制炎性反应,上调增殖细胞核抗原蛋白表达,促进肝细胞再生及肝功能恢复。

 

 

ORCID: 0000-0002-6926-2354(史光军)

关键词: 干细胞, 移植, 人脂肪间充质干细胞, 肝衰竭, 炎性反应, 肝再生, 增殖细胞核抗原

Abstract:

BACKGROUND: Adipose-derived mesenchymal stem cells (ADMSCs) can improve the liver function of rats with liver failure, which illustrates the important research value in the field of tissue engineering and cell transplantation.
OBJECTIVE: To evaluate the therapeutic potential of human ADMSCs in heart failure rats and to discuss the possible biological mechanisms involved.
METHODS: Heart failure rats were randomized into model and ADMSCs groups, which were given normal saline or DAPI-labeled human ADMSCs (3.0×106) via the tail vein. At 1, 3, 7 days after transplantation, we detected the biochemical indexes for liver function in rats. At 3 days after transplantation, the serum levels of cytokines, such as tumor necrosis factor α and interleukin-10, were detected, the histomorphological changes in the liver were observed by hematoxylin-eosin staining, and the protein expression of proliferating cell nuclear antigen was detected by western blot.
RESULTS AND CONCLUSION: We found that human ADMSCs could migrate to the liver and lung tissues in rats after the transplantation via the tail vein. At 1 and 3 days after transplantation, the levels of serum alanine aminotransferase and aspartate aminotransferase were significantly reduced in the ADMSCs group as compared with the model group (P < 0.05); furthermore, the secretion of tumor necrosis factor α and interleukin-10 was significantly suppressed at 3 days after cell transplantation (P < 0.05). The results of hematoxylin-eosin staining indicated a significant improvement in liver degeneration and necrosis. The expression of proliferating cell nuclear antigen protein in the ADMSCs group was significantly up-regulated compared with the model group. To conclude, human ADMSCs can inhibit the inflammatory reaction and up-regulate the expression of proliferating cell nuclear antigen, to promote the regeneration of liver cells and the recovery of liver function.

 

 

Key words: Adipose Tissue, Mesenchymal Stem Cell Transplantation, Liver Failure, Acute, Proliferating Cell Nuclear Antigen, Tissue Engineering

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