中国组织工程研究 ›› 2019, Vol. 23 ›› Issue (21): 3378-3385.doi: 10.3969/j.issn.2095-4344.1750

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

碱性成纤维细胞生长因子转染骨髓间充质干细胞移植治疗慢性阻塞性肺疾病的作用及机制

吴华拉,周湘乡,钟玉兰,淦 鑫   

  1. 南昌大学第一附属医院呼吸内科,江西省南昌市 330006
  • 修回日期:2019-02-13 出版日期:2019-07-28 发布日期:2019-07-28
  • 通讯作者: 淦鑫,博士,主任医师,南昌大学第一附属医院呼吸内科,江西省南昌市 330006
  • 作者简介:吴华拉,女,1988年生,江西省新建县人,汉族,2016年南昌大学毕业,硕士,医师,主要从事慢性阻塞性肺疾病及干细胞的研究。
  • 基金资助:

    国家自然科学基金项目(81660009),项目负责人:淦鑫;国家自然科学基金项目(81260004),项目负责人:淦鑫;江西省自然科学基金(20161ACB20012),项目负责人:淦鑫

Basic fibroblast growth factor-transfected bone marrow mesenchymal stem cell transplantation for chronic obstructive pulmonary disease

Wu Huala, Zhou Xiangxiang, Zhong Yulan, Gan Xin   

  1. Department of Respiration, the First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, China
  • Revised:2019-02-13 Online:2019-07-28 Published:2019-07-28
  • Contact: Gan Xin, MD, Chief physician, Department of Respiration, the First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, China
  • About author:Wu Huala, Master, Physician, Department of Respiration, the First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81660009 (to GX) and 81260004 (to GX); the Natural Science Foundation of Jiangxi Province, No. 20161ACB20012 (to GX)

摘要:

文章快速阅读:

文题释义:
CC16:
Clara细胞蛋白,由肺部Clara细胞分泌的一种特异性蛋白。Clara细胞是一种无纤毛上皮细胞,主要分布于终末细支气管和呼吸性细支气管上皮;Clara细胞具有活跃的增殖分化特性,参与支气管上皮损伤的修复过程。Clara细胞蛋白具有抗炎、抗纤维化的生物学特性。
肺表面活性物质:指由肺泡Ⅱ型上皮细胞分泌的一种复杂的脂蛋白,其主要成分为二棕榈酰卵磷脂和表面活性物质结合蛋白,前者约占60%以上,后者约占10%。肺表面活性物质分布于肺泡液体分子层表面,具有降低肺泡表面张力的作用,能维持大小肺泡容量的相对稳定,阻止肺泡毛细血管中液体向肺泡内滤出。

 

摘要
背景:
促炎与抗炎反应失衡在慢性阻塞性肺疾病发病过程中起到关键作用。课题组设想通过减轻肺内炎症反应、促进肺泡上皮或支气管上皮细胞再生修复,减轻或逆转慢性阻塞性肺疾病的病理过程,从而达到治愈疾病的目的。
目的:观察碱性成纤维细胞生长因子(basic fibroblast growth factor,bFGF)转染骨髓间充质干细胞(bone marrow mesenchymal stem cells,BMSCs)移植慢性阻塞性肺疾病大鼠白细胞介素10、白细胞介素4的表达及其在体内的分化。
方法:采用全骨髓贴壁法提取、培养骨髓间充质干细胞,以脂质体转染法导入bFGF-pcDNA3.1质粒。选取健康SD大鼠150只,随机取30只大鼠为正常对照组,其余120只大鼠采用脂多糖联合熏烟的复合刺激法制备成慢性阻塞性肺疾病模型,然后随机分为慢性阻塞性肺疾病组、骨髓间充质干细胞组、pcDNA3.1-BMSCs组、bFGF-pcDNA3.1-BMSCs组,每组30只。各组大鼠分别在第7,14,28天处死,苏木精-伊红染色观察肺组织病理学改变,ELISA检测外周血白细胞介素10、白细胞介素4水平,qRT-PCR法检测肺组织中白细胞介素10、白细胞介素4 mRNA的表达;冰冻切片免疫荧光染色法检测骨髓间充质干细胞在肺组织中的分化情况。
结果与结论:①第28天,3个骨髓间充质干细胞治疗组均较慢性阻塞性肺疾病组病理改变明显改善;②在相同时间节点,3个骨髓间充质干细胞治疗组外周血及肺组织中的白细胞介素10、白细胞介素4表达高于慢性阻塞性肺疾病组(P < 0.05),骨髓间充质干细胞组、pcDNA3.1-BMSCs组差别不大,但bFGF-pcDNA3.1- BMSCs组较之二者相对较高,差异有显著性意义(P < 0.05);③第28天,在3个骨髓间充质干细胞治疗组的肺组织切片中观察到有部分 CM-Dil 阳性细胞,同时SPC或CC16表达阳性,bFGF-pcDNA3.1-BMSCs组阳性细胞相对较多;④结果表明,携带碱性成纤维细胞生长因子基因的骨髓间充质干细胞移植入慢性阻塞性肺疾病大鼠,可减轻病理改变,增强抗炎效果,并可促进骨髓间充质干细胞分化为肺泡上皮细胞和支气管上皮细胞。


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
ORCID:
0000-0002-2459-7150(钟玉兰)

关键词: 慢性阻塞性肺疾病, 骨髓间充质干细胞, 碱性成纤维细胞生长因子, 基因转染, 抗炎细胞因子, 肺泡上皮细胞, 支气管上皮细胞, 国家自然科学基金

Abstract:

BACKGROUND: The imbalance between pro-inflammatory and anti-inflammatory responses plays a key role in the pathogenesis of chronic obstructive pulmonary disease. The research team attempted to cure the chronic obstructive pulmonary disease by reducing the intrapulmonary inflammatory response, promoting the regeneration and repair of alveolar epithelial or bronchial epithelial cells, and alleviating or reversing the pathological procession of the disease.
OBJECTIVE: To observe the expression of interleukin-10 and interleukin-4 after transplantation of basic fibroblast growth factor (bFGF)-transfected bone marrow mesenchymal stem cells (BMSCs) and cell differentiation in rats with chronic obstructive pulmonary disease.
METHODS: BMSCs were isolated and cultured using the whole bone marrow adhesion method. 150 healthy Sprague-Dawley rats were randomly selected, 30 of which were randomly selected as normal controls and the remaining rats were used to make a chronic obstructive pulmonary disease model by lipopolysaccharide combined with fumigation. Model rats were then randomly divided into chronic obstructive pulmonary disease group (model group), BMSCs group, pcDNA3.1-BMSCs group, and bFGF-pcDNA3.1-BMSCs group (n=30 per group). The rats in each group were sacrificed at 7, 14 and 28 days. The pathological changes of the lung tissues were observed by hematoxylin-eosin staining. The levels of interleukin-10 and interleukin-4 in the peripheral blood were detected by ELISA. The mRNA levels of interleukin-10 and interleukin-4 in the lung tissues were detected by qRT-PCR. The differentiation of BMSCs in the lung tissues was detected by immunofluorescence staining.
RESULTS AND CONCLUSION: On the 28th day after modeling, the pathological changes of the lung tissues were significantly improved in the three BMSCs groups relative to the model group. The expressions of interleukin-10 and interleukin-4 in peripheral blood and lung tissues at the same observation time point were significantly higher in the three BMSCs groups than the model group (P < 0.05). Although there was no significant difference between the BMSCs and pcDNA3.1-BMSCs group, higher levels of interleukin-10 and interleukin-4 were detected in the bFGF-pcDNA3.1-BMSCs group than the other BMSCs groups (P < 0.05). On the 28th day after modeling, some cells in the lung tissues in the three BMSCs groups were concurrently positive for CM-Dil and SPC or CC16. Moreover, there were more positive cells in the bFGF-pcDNA3.1-BMSCs group as compared with the other BMSCs groups. In conclusion, transplantation of bFGF-transfected BMSCs for chronic obstructive pulmonary disease in rats can reduce pathological changes of the lung tissue, enhance anti-inflammatory effects, and promote differentiation of BMSCs into alveolar epithelial cells and bronchial epithelial cells.

Key words: chronic obstructive pulmonary disease, bone marrow mesenchymal stem cells, basic fibroblast growth factor, gene transfection, anti-inflammatory cytokines, alveolar epithelial cells, bronchial epithelial cells, National Natural Science Foundation of China

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