Chinese Journal of Tissue Engineering Research ›› 2016, Vol. 20 ›› Issue (6): 868-875.doi: 10.3969/j.issn.2095-4344.2016.06.016

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Bone marrow mesenchymal stem cell transplantation combined with lithium chloride treatment for avascular necrosis of the femoral head in rabbits

Li Wei1, Lu Xiao-wei2, Xian Cheng1, Lao Shan1   

  1. 1Department of Bone and Joint Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China; 2Department of Surgery, Third People’s Hospital of Anyang, Anyang 455000, Henan Province, China
  • Received:2016-01-02 Online:2016-02-05 Published:2016-02-05
  • Contact: Lao Shan, M.D., Master’s supervisor, Chief physician, Department of Bone and Joint Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China
  • About author:Li Wei, Master, Attending physician, Department of Bone and Joint Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China
  • Supported by:

    the Medical Treatment and Public Health Project of Guangxi Province, No. 2010014

Abstract:

BACKGROUND: Lithium chloride can promote the proliferation and osteogenic capacity of bone marrow mesenchymal stem cells in the necrotic region after avascular necrosis of the femoral head, which has become an issue of concern.
OBJECTIVE: To compare the advantages and disadvantages of bone marrow stem cell transplantation combined with lithium chloride in the treatment of rabbit femoral head necrosis.
METHODS: Passage 2 bone marrow mesenchymal stem cells from 1-week-old New Zealand rabbits were cultured in 0, 5, 10, 20, 40 mmol/L lithium chloride. Forty-eight healthy adult New Zealand rabbits were selected to make femoral head necrosis models in the right femoral head using liquid nitrogen freezing method and then randomized into four groups: model group with no implantation; lithium chloride group given lithium chloride treatment at 3 days after modeling; cell transplantation group given gelatin sponge implantation and bone marrow mesenchymal stem cell suspension injection into the femoral head after modeling; combined group given bone marrow mesenchymal stem cell suspension injection and lithium chloride treatment. Intraperitoneal injection of lithium chloride (45.2 mg/kg) was given daily beginning at the postoperative 3rd day, and the treatment duration was 4 weeks.
RESULTS AND CONCLUSION: Lithium chloride at 10 mmol/L had the maximum effect on the proliferation of rabbit bone marrow mesenchymal stem cells, and if the concentration of lithium chloride was > 10 mmol/L, the promotion role of lithium chloride began to decline. After combined treatment, the morphology of the femoral head was restored a little, with increased bone density and thickened trabecular bone; the level of β-catenin in the femoral head was significantly increased in the combined group compared with the cell transplantation group or the lithium chloride group. These findings show that bone marrow stem cell transplantation combined with lithium chloride treatment can promote the recovery from femoral head necrosis by increasing bone mass of the trabecular bone and bone density of the femoral head in the necrotic region.