中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (28): 4189-4195.doi: 10.3969/j.issn.2095-4344.2016.28.013

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

骨髓基质干细胞对熏烟暴露老年大鼠髋部骨折后急性肺损伤的保护作用

张桂通1,2,冯杰扬2,刘  佳2,张艳金2,相子民2,孟繁星2,孙天胜1,2   

  1. 1解放军医学院,北京市  100853
    2解放军北京军区总医院,北京市  100700
  • 修回日期:2016-05-19 出版日期:2016-07-01 发布日期:2016-07-01
  • 通讯作者: 孙天胜,博士,主任医师,教授,解放军医学院,北京市 100853;解放军北京军区总医院,北京市 100700
  • 作者简介:张桂通,男,1989年生,河北省沧州市人,汉族,解放军医学院在读硕士,医师,主要从事脊柱脊髓损伤方面的研究。
  • 基金资助:

    国际科技合作项目(2010DFA31250);创伤后炎性反应与全身病发症的关系及预防策略研究

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

摘要:

文章快速阅读:

文题释义:
急性肺损伤:
是各种直接和间接致伤因素导致的肺泡上皮细胞及毛细血管内皮细胞损伤,造成弥漫性肺间质及肺泡水肿,导致的急性低氧性呼吸功能不全。
骨髓基质干细胞:通过众多实验研究发现其具有来源广泛、易分离、扩增迅速、多向分化、适合自体移植等特点,临床中将是被广泛运用于骨修复的种子细胞。骨髓基质干细胞具有自身免疫、肿瘤监控等免疫调节特性,可运用于全身炎症反应综合征、脓毒血症的治疗。

 

摘要
背景:
老年慢性阻塞性肺疾病患者髋部骨折术后死亡率明显高于单纯髋部骨折患者。近年来,这一问题受到越来越多的关注,但是由于机制不明,目前临床对于此类患者尚无有效的干预手段。
目的:观察骨髓基质干细胞对老年慢性阻塞性肺疾病大鼠髋部骨折后急性期肺部炎症水平的影响。
方法:12月龄雄性SD大鼠30只,暴露香烟箱4个月后,按随机数字表随机分为3组:熏烟组,熏烟+ 髋部骨折+生理盐水组,熏烟+髋部骨折+骨髓基质干细胞组,后2组制备髋部骨折模型。骨折后24 h,3组大鼠取相同肺下叶组织和外周血,进行病理切片与炎症指标分析。
结果与结论:①老年慢性阻塞性肺疾病大鼠闭合性髋部骨折后,肺组织炎细胞浸润、黏液分泌、气管腔狭窄或闭塞;②骨折后肺组织与血清中白细胞介素6、肿瘤坏死因子α、白细胞介素10水平均有所增高;③静脉注射骨髓基质干细胞后,肺组织病理改变较生理盐水组减轻,促炎因子白细胞介素6、肿瘤坏死因子α水平低于生理盐水组,抗炎因子白细胞介素10水平高于生理盐水组,差异有显著性意义(P < 0.05),血浆中炎症因子水平变化与肺组织相似;④结果表明,长期暴露香烟箱中的老年大鼠肺组织病理学有所改变,骨髓基质干细胞能缓解老年慢性阻塞性肺疾病大鼠髋部骨折后的急性肺损伤。

 

 

关键词: 干细胞, 移植, 慢性阻塞性肺疾病, 骨髓间充质干细胞, 髋部骨折, 炎症反应, 急性肺损伤, 白细胞介素 6, 肿瘤坏死因子 α, 白细胞介素10

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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