中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (32): 4792-4797.doi: 10.3969/j.issn.2095-4344.2016.32.012

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

骨髓间充质干细胞修复急性呼吸窘迫综合征

张  蕾   

  1. 南阳医学高等专科学校,河南省南阳市  473000
  • 修回日期:2016-05-23 出版日期:2016-08-05 发布日期:2016-08-05
  • 作者简介:张蕾,女,1982年生,河南省南阳市人,汉族,2008年华中科技大学毕业,硕士,讲师,主要从事内科学研究。
  • 基金资助:

    河南省科技攻关项目(132102310176)

Bone marrow mesenchymal stem cells for repairing acute respiratory distress syndrome

Zhang Lei   

  1. Nanyang Medical College, Nanyang 473000, Henan Province, China
  • Revised:2016-05-23 Online:2016-08-05 Published:2016-08-05
  • About author:Zhang Lei, Master, Lecturer, Nanyang Medical College, Nanyang 473000, Henan Province, China
  • Supported by:

    the Science and Technology Project of Henan Province, No. 132102310176

摘要:

文章快速阅读:

文题释义:
急性呼吸窘迫综合征:
是指由心源性以外的各种肺内外致病因素导致的急性、进行性缺氧性呼吸衰竭。早在1950年首先由Tenkin提出休克肺概念,随着发现存在多种原因导致该种疾患,1967年Ashbaugh提出“呼吸窘迫综合征”。为区别婴儿因缺乏表面活性物质导致的肺泡表面张力增加,致使部分肺泡萎陷而引起的呼吸困难,人们将由其他因素导致的在成人多发的呼吸窘迫综合征统一命名为成人呼吸窘迫综合征(adult respiratory distress syndrom),此命名的采用的确曾经对此类疾病的准确诊断和治疗起到过积极的作用。随着人们对其病理生理认识的不断深入,发现急性呼吸窘迫综合征主要是各种急性、严重的肺内或肺外疾病发展到一定程度时,各种炎性递质导致肺内皮和上皮同时受损的结果,不但在成人而且在儿童也可以有此并发症。因此,在1992年欧洲和美国呼吸协会一致将原来“adult respiratory distress syndrome”的adult改为acute,即急性呼吸窘迫综合征。

 

摘要
背景:
临床上骨髓间充质干细胞运用于急性呼吸窘迫综合征尚缺乏报道。
目的:验证骨髓间充质干细胞在大鼠急性呼吸窘迫综合征中的修复效果。
方法:63只SD大鼠随机对照方法分为正常对照组、损伤对照组和骨髓间充质干细胞组,每组21只,另一只用于取干细胞。建立SD大鼠急性呼吸窘迫综合征模型。损伤对照组待其苏醒后不作处理,骨髓间充质干细胞组经尾静脉注入氟尿嘧啶标记的骨髓间充质干细胞。对肺组织切片进行苏木精-伊红染色,采用ELISA检测大鼠肺组织匀浆中白细胞介素1β水平,比较3组SD大鼠肺损伤修复效果。
结果与结论:①苏木精-伊红染色显示:骨髓间充质干细胞组大鼠肺部炎症细胞消退,肺部组织水肿、充血开始消退,并未发生实变情况;损伤对照组肺部组织炎症变化明显,存在明显的水肿和充血情况;对照组大鼠肺部组织正常,未见炎症,未见实变;②骨髓间充质干细胞组肺水肿指数、肺组织匀浆白细胞介素1β含量,显著低于损伤对照组(P < 0.05),损伤组显著高于正常对照组(P < 0.05);③结果提示,全骨髓培养法能获得骨髓间充质干细胞,用于大鼠急性呼吸窘迫综合征效果理想,吸入脂多糖后大鼠出现典型的急性呼吸窘迫综合征改变,骨髓间充质干细胞可减少炎症因子释放,直接参与损伤肺上皮修复。

 

 

关键词: 干细胞, 移植, 急性呼吸窘迫综合征, 骨髓间充质干细胞, 脂多糖, 氟尿嘧啶, 组织水肿, ;肺水肿指数, 白细胞介素1β

Abstract:

BACKGROUND: To date little is reported clinically on bone marrow mesenchymal stem cells (BMSCs) for acute respiratory distress syndrome (ARDS).
OBJECTIVE: To study the effect of BMSCs in ARDS rats.
METHODS: Sixty-three Sprague-Dawley rats were randomly assigned into normal control group, model and BMSCs groups (n=21 per group), followed by establishment of ARDS models. After awakening, rats in the model group were given no treatment, while those in the BMSCs group given tail vein injection of fluorouracil-labeled BMSCs. Then, pathological observation of the lung tissue was conducted using hematoxylin-eosin staining, and ELISA method was employed to detect interleukin-1β level in the rat lung tissue homogenates. Repair effects on lung injury were compared between two groups.
RESULTS AND CONCLUSION: Hematoxylin-eosin staining showed that inflammation, edema and congestion in the rat lung tissue were vanished gradually, but no consolidation was found in the BMSCs group, while there was visible edema and congestion in the lung tissue of rats in the model group. Compared with the model group, pulmonary edema and interleukin-1β level in the lung tissue were significantly reduced in the BMSCs group (P < 0.05). Therefore, the whole bone marrow culture method is suitable to obtain BMSCs that have desired effects on ARDS in rats. In ARDS rats, due to inhalation of lipopolysaccharide, BMSCs can be directly involved in lung epithelial repair by reducing the release of inflammatory factors.

 

 

Key words: Stem Cells, Mesenchymal Stem Cells, Respiratory Distress Syndrome, Adult, Tissue Engineering

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