检验医学 ›› 2015, Vol. 30 ›› Issue (3): 280-283.DOI: 10.3969/j.issn.1673-8640.2015.03.019

• 基础研究·论著 • 上一篇    下一篇

β-葡聚糖对单核细胞释放TNF-α、IL-8和IL-12的影响

吴荣强1, 王苏建1, 王仕忠2, 周海俊2, 戚春建2   

  1. 1.南京医科大学附属常州第二人民医院检验科,江苏 常州 213003
    2.南京医科大学附属常州第二人民医院肿瘤研究所,江苏 常州 213003
  • 收稿日期:2014-06-06 出版日期:2015-03-30 发布日期:2015-04-16
  • 作者简介:null

    作者简介:吴荣强,男,1982年生,学士,主管技师,主要从事临床生物化学检验研究。

  • 基金资助:
    国家自然科学基金资助项目(81272323);江苏省自然科学基金资助项目(BK2011244);教育部第46批留学回国人员科研启动基金资助项目

The influence of beta-glucan on TNF-α,IL-8 and IL-12 in monocytes

WU Rongqiang1, WANG Sujian1, WANG Shizhong2, ZHOU Haijun2, QI Chunjian2   

  1. 1.Department of Clinical Laboratory, Changzhou Second People's Hospital, Nanjing Medical University, Jiangsu Changzhou 213003, China
    2.Oncology Institute, Changzhou Second People's Hospital, Nanjing Medical University, Jiangsu Changzhou 213003, China
  • Received:2014-06-06 Online:2015-03-30 Published:2015-04-16

摘要: 目的

研究β-葡聚糖对单核细胞释放动脉粥样硬化致病因子[肿瘤坏死因子α(TNF-α)、白细胞介素18(IL-8)和白细胞介素12(IL-12)]的影响。

方法

用密度梯度离心法分离健康志愿者新鲜血液中的单核细胞,使用佛波醇酯(PMA)诱导单核细胞分化为巨噬细胞,进一步利用氧化低密度脂蛋白(ox-LDL)诱导巨噬细胞为泡沫细胞,将实验分为无药对照组、ox-LDL组、颗粒性β-葡聚糖(WGP)组和WGP+ox-LDL组,提取总RNA,扩增TNF-α、IL-8和IL-12 cDNA,并采用酶联免疫吸附试验(ELISA)测定细胞上清液中的浓度。

结果

与无药对照组比较,ox-LDL诱导单核细胞TNF-α、IL-8和IL-12蛋白水平的表达显著升高(P<0.05),而WGP可以显著抑制 ox-LDL 诱导的上述细胞因子在蛋白水平和TNF-α、IL-8在mRNA水平的表达(P<0.05)。

结论

β-葡聚糖可能通过抑制单核细胞促炎因子的分泌减缓动脉粥样硬化形成。

关键词: β-葡聚糖, 低密度脂蛋白, 单核细胞

Abstract: Objective

To study the influence of beta-glucan on tumor necrosis factor alpha (TNF-α), interleukin 8 (IL-8) and interleukin 12 (IL-12) in atherosclerosis pathogenesis monocytes.

Methods

The monocytes of healthy subjects were separated by density gradient centrifugation. The monocytes were induced into macrophages by phorbol myristate acetate (PMA), and the macrophages were induced into foam cells by oxidized low-density lipoprotein (ox-LDL). There were control group, ox-LDL group, whole beta-glucan particle (WGP) group and WGP + ox-LDL group, the total RNA was extracted, and the TNF-α, IL-8 and IL-12 cDNA was amplified. The concentrations in supernates were determined by enzyme-linked immunosorbent assay(ELISA).

Results

Compared with control group,the protein expression of TNF-α ,IL-8 and IL-12 in monocytes were significantly up-regulated by ox-LDL (P<0.05). After pretreated with WGP,the protein expressions of TNF-α, IL-8 and IL-12 and the mRNA expressions of TNF-α and IL-8 were inhibited significantly (P<0.05).

Conclusions

beta-glucan may inhibited ox-LDL-induced pro-inflammatory effects in macrophages,which attenuates the development of atherosclerosis.

Key words: Beta-glucan, Low-density lipoprotein, Monocytes

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