Chinese Journal of Tissue Engineering Research ›› 2016, Vol. 20 ›› Issue (28): 4189-4195.doi: 10.3969/j.issn.2095-4344.2016.28.013

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Protective effect of bone marrow stromal stem cells against acute lung injury after hip fracture in aged rats with chronic obstructive pulmonary disease

Zhang Gui-tong1, 2, Feng Jie-yang2, Liu Jia2, Zhang Yan-jin2, Xiang Zi-min2, Meng Fan-xing2,Sun Tian-sheng1, 2   

  1. 1Chinese PLA General Hospital, Beijing 100853, China
    2Beijing Army General Hospital, Beijing 100700, China
  • Revised:2016-05-19 Online:2016-07-01 Published:2016-07-01
  • Contact: Sun Tian-sheng, M.D., Chief physician, Professor, Beijing Army General Hospital, Beijing 100700, China
  • About author:Zhang Gui-tong, Studying for master’s degree, Physician, Chinese PLA General Hospital, Beijing 100853, China
  • Supported by:

    the International Science and Technology Cooperation Project, No. 2010DFA31250

Abstract:

BACKGROUND: The elderly hip fracture patients with chronic obstructive pulmonary disease (COPD) have a higher postoperative mortality than those only with hip fractures. In recent years, it has become an issue of concerns. Because the mechanism is unknown, however, there are no effective clinical interventions for these patients.
OBJECTIVE: To observe the effect of bone marrow stromal stem cells (BMSCs) on the level of pulmonary inflammation in aged rats with chronic obstructive pulmonary disease (COPD) after hip fractures.
METHODS: Thirty male Sprague-Dawley rats, 12 months old, were exposed to smoking for 4 months and randomized into three groups, smoking, smoking+hip fracture+normal saline, smoking+hip fracture+ BMSCs groups. Animal models of hip fracture were made in the latter two groups. Twenty-four hours after hip fracture, the lower lobe and peripheral blood samples were taken from all rats in the three groups, to evaluate the pathological changes of lung tissue and detect levels of inflammatory factors in the lung tissue and peripheral blood.
RESULTS AND CONCLUSION: After closed hip fracture, aged COPD rats exhibited inflammatory cell infiltration, mucus secretion, airway stenosis or occlusion; the levels of interleukin-6, tumor necrosis factor-α and interleukin-10 in the lung tissue and peripheral blood were increased. After intravenous injection of BMSCs, the pathological changes of the lung tissue were reduced, and the levels of pro-inflammatory factors, tumor necrosis factor-α and interleukin-6, decreased, but the level of anti-inflammatory factor interleukin-10 further increased, which were significantly different from those in the normal saline group (P < 0.05). These findings indicate that BMSCs can relieve acute lung injury in aged COPD rats with hip fractures.

 

 

Key words: Pulmonary Disease, Chronic Obstructive, Hip Fractures, Acute Lung Injury, Bone Marrow, Mesenchymal Stem Cell Transplantation, Tissue Engineering

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