Chinese Journal of Tissue Engineering Research ›› 2015, Vol. 19 ›› Issue (32): 5215-5219.doi: 10.3969/j.issn.2095-4344.2015.32.024

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Application of bone marrow mesenchymal stem cells in hematopoietic stem cell transplantation for sensitized and non-sensitized BALB/c mice

Guo Xiao-wei1, Guan Chen-xia2   

  1. 1Orthopedics Hospital of Zhengzhou, Zhengzhou 450052, Henan Province, China; 
    2Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, Henan Province, China
  • Online:2015-08-06 Published:2015-08-06
  • About author:Guo Xiao-wei, Master, Associate chief physician, Orthopedics Hospital of Zhengzhou, Zhengzhou 450052, Henan Province, China
  • Supported by:

    the Medical Science Key Project of Henan Province in 2011, No. 2011030026

Abstract:

BACKGROUND: Hematopoietic stem cell transplantation has therapeutic effects on many diseases, but its application has some limitations, such as cell harvesting and age-limited number of cells.
OBJECTIVE: To investigate the application value of bone marrow mesenchymal stem cells in hematopoietic stem cell transplantation for sensitized and non-sensitized BALB/c mice.
METHODS: Bone marrow cells derived from BALB/c mice were isolated and cultured in vitro to harvest mesenchymal stem cells using adherent method. The cell surface markers were detected by flow cytometry. A murine model of sensitization was established by transfusion of allogeneic spleen cells. Mesenchymal stem cells labeled with green fluorescent dye were transplanted into non-sensitized and sensitized recipient mice, and the homing of mesenchymal stem cells in vivo was monitored at different time points post transplantation. Additionally, under irradiation pretreatment, sensitized BALB/c mice under irradiation were subjected to combined transplantation of allogeneic bone marrow cells and syngeneic mesenchymal stem cells. Survival rate of BALB/c mice was monitored daily.
RESULTS AND CONCLUSION: At 48 hours after transplantation, mesenchymal stem cells in sensitized and non-sensitized recipients were homing to the spleen and bone marrow, respectively. In the experiment of hematopoietic stem cell transplantation, the sensitized recipients died at 12-15 days after combined 
transplantation, with a median of 14 days; however, the sensitized recipients only undergoing allogeneic bone marrow cell transplantation had a survival median of 13 days. These findings indicate that the transplanted mesenchymal stem cells in sensitized recipients are mainly homing to the spleen and bone marrow, but the combination transplantation cannot enhance the transplantation of allogeneic hematopoietic stem/progenitor cells in sensitized recipients.

 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

Key words: Immunization, Hematopoietic Stem Cell Transplantation, Spleen, Cell Transplantation

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