Chinese Journal of Tissue Engineering Research ›› 2017, Vol. 21 ›› Issue (17): 2690-2695.doi: 10.3969/j.issn.2095-4344.2017.17.011

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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

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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