中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (10): 1532-1538.doi: 10.3969/j.issn.2095-4344.2014.10.009

• 脂肪干细胞 adipose-derived stem cells • 上一篇    下一篇

脂肪间充质干细胞对J774.1细胞的免疫调控

白  力1,张  伟1,庞春艳1,魏斐菲2,王永福1   

  1. 1包头医学院第一附属医院风湿免疫研究所,内蒙古自治区包头市  014000;2包头医学院,内蒙古自治区包头市  014000
  • 出版日期:2014-03-05 发布日期:2014-03-05
  • 通讯作者: 王永福,教授,主任医师,博士,硕士生导师,享受国务院政府特殊津贴专家,包头医学院第一附属医院风湿免疫研究所,内蒙古自治区包头市 014000
  • 作者简介:白力,男,1986年生,内蒙古自治区包头市人,汉族,助教,主要从事脂肪间充质干细胞和表观遗传学方面的基础研究。
  • 基金资助:

    国家自然科学基金项目(81360464),项目名称:去乙酰化酶抑剂VPA对脂肪间充质干细胞免疫调控能力的影响;内蒙古包头医学院自治区重大基础研究开放课题;教育部“春晖计划”项目(Z2007-1-01019);内蒙古青年科技英才支持计划,项目名称:脂肪间充质干细胞对自身免疫性疾病的基础研究工作;内蒙教育厅重点项目(NJZZ12216),项目名称:脂肪间充质干细胞诱导分化的成骨细胞治疗骨质疏松大鼠的实验研究

Immunoregulation role of adipose mesenchymal stem cells in J774.1 cells

Bai Li1, Zhang Wei1, Pang Chun-yan1, Wei Fei-fei2, Wang Yong-fu1   

  1. 1 Institute of Rheumatology, First Affiliated Hospital of Baotou Medical College, Baotou 014000, Inner Mongolia Autonomous Region, China; 2 Baotou Medical College, Baotou 014000, Inner Mongolia Autonomous Region, China
  • Online:2014-03-05 Published:2014-03-05
  • Contact: Wang Yong-fu, M.D., Professor, Chief physician, Master’s supervisor, Institute of Rheumatology, First Affiliated Hospital of Baotou Medical College, Baotou 014000, Inner Mongolia Autonomous Region, China
  • About author:Bai Li, Assistant teacher, Institute of Rheumatology, First Affiliated Hospital of Baotou Medical College, Baotou 014000, Inner Mongolia Autonomous Region, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81360464; the Major Basic Research of Inner Mongolia Autonomous Region in Baotou Medical College; “Chunhui Plan” of the Ministry of Education, No. Z2007-1-01019; the Young Talent Supporting Plan of Inner Mongolia Autonomous Region; the Key Program of the Educational Bureau of Inner Mongolia Autonomous Region, No. NJZZ12216

摘要:

背景:近期研究发现脂肪间充质干细胞针对T细胞、B细胞和树突状细胞均有抑制免疫反应的能力,但对于其是否可以对巨噬细胞起到相应的免疫调控能力还不清楚。
目的:观察脂肪间充质干细胞与J774.1细胞共培养后白细胞介素6和肿瘤坏死因子α的表达。
方法:将脂肪间充质干细胞按照2×107/孔分别接种于transwell的上层小室和24孔板中,再利用含1 mg/L脂多糖的培养液重悬J774.1细胞,将J774.1细胞接种到含脂肪间充质干细胞的transwell下层小室和24孔板中,同时设立未激活J774.1细胞阴性对照组和脂多糖激活J774.1阳性对照组。培养48 h收集细胞样,提取RNA样本,荧光定量PCR法检测白细胞介素6、肿瘤坏死因子α mRNA 水平。
结果与结论:相对于单纯脂多糖激活的阳性对照组J774.1细胞,脂肪间充质干细胞与J774.1细胞的接触型混合培养可以明显降低J774.1细胞的白细胞介素6和肿瘤坏死因子α的表达量,而非接触共培养组中,只有白细胞介素6 mRNA水平发生了明显的降低。以上结果表明脂肪间充质干细胞具有抑制脂多糖激活J774.1细胞的免疫反应的能力。


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


全文链接:

关键词: 干细胞, 脂肪干细胞, 脂肪间充质干细胞, J774.1细胞, 免疫调控, 混合培养, 荧光定量PCR, 脂多糖, Transwell, 巨噬细胞, 免疫反应, 细胞因子, 国家自然科学基金

Abstract:

BACKGROUND: Recent studies have found that adipose mesenchymal stem cells can inhibit immune responses of T cells, B cells and dendritic cells. But it is unclear whether adipose mesenchymal stem cells are able to regulate the immune responses of macrophages.
OBJECTIVE: To observe the expression of interleukin-6 and tumor necrosis factor α in J774.1 cells co-cultured with adipose mesenchymal stem cells co-cultured.
METHODS: Adipose mesenchymal stem cells at a density of 2×107 per well were inoculated into the upper chamber of the transwell and 24-well plates. Then, J774.1 cells were suspended with cell culture medium containing 1 mg/L lipopolysaccharide and planted into the lower chamber of the transwell and 24-well plates containing adipose mesenchymal stem cells as co-culture group. Meanwhile, inactive J774.1 cells to lipopolysaccharide-activat J774.1 cells served as negative and positive control groups, respectively. After 48 hours, the J774.1 cells were collected to extract the RNA samples. Then, mRNA expressions of interleukin-6 and tumor necrosis factor α were measured by real-time quantitative PCR.
RESULTS AND CONCLUSION: Compared with the positive control group, direct-contact co-culture of 
adipose mesenchymal stem cells and J774.1 cells significantly reduced expressions of interleukin-6 and tumor necrosis factor α in J774.1 cells, but non-contact co-culture only reduced interleukin-6 expression. These findings indicate that adipose mesenchymal stem cells can inhibit the immune response of J774.1 cells activated by lipopolysaccharide.


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


全文链接:

Key words: adipose tissue, mesenchymal stem cells, macrophages, coculture techniques, immunomodulation, interleukin-6, tumor necrosis factor-alpha 

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