中国组织工程研究 ›› 2013, Vol. 17 ›› Issue (5): 886-893.doi: 10.3969/j.issn.2095-4344.2013.05.019

• 移植与免疫 transplantation and Immunology • 上一篇    下一篇

脂氧素受体激动剂对巨细胞病毒感染巨噬细胞的免疫负调节

陈晓红1,2,舒赛男1,刘兴楼1,王 慧1,张 菊1,杜小弋1,2,李 革1,方 峰1   

  1. 1 华中科技大学同济医学院附属同济医院儿科系,湖北省武汉市  430030
    2 武汉市儿童医院,湖北省武汉市  430016
  • 收稿日期:2012-05-27 修回日期:2012-06-20 出版日期:2013-01-29 发布日期:2013-01-29
  • 通讯作者: 方峰,博士,教授,华中科技大学同济医学院附属同济医院儿科系,湖北省武汉市430030 ffang@tjh.tjmu.edu.cn
  • 作者简介:陈晓红☆,女,1971年生,湖北省黄梅县人,汉族,华中科技大学同济医学院附属同济医院儿科在读博士,副主任医师,主要从事儿科感染方面的研究。chenxiaohong2007d@hotmail.com
  • 基金资助:

    高等学校博士学科点专项科研基金(20090142110076)。

Negative immunomodulatory effect of lipoxin receptor stimulating agent on macrophages infected by human cytomegalovirus

Chen Xiao-hong1, 2, Shu Sai-nan1, Liu Xing-lou1, Wang Hui1, Zhang Ju1, Du Xiao-yi1, 2, Li Ge1,
Fang Feng1   

  1. 1 Department of Pediatrics, Tongji Hospital Affiliated to Tongji Medical College, Huazhong University of Science & Technology, Wuhan  430030, Hubei Province, China
    2 Wuhan Children’s Hospital, Wuhan  430016, Hubei Province, China
  • Received:2012-05-27 Revised:2012-06-20 Online:2013-01-29 Published:2013-01-29
  • Contact: Fang Feng, Doctor, Professor, Department of Pediatrics, Tongji Hospital Affiliated to Tongji Medical College, Huazhong University of Science & Technology, Wuhan 430030, Hubei Province, China ffang@tjh.tjmu.edu.cn
  • About author:Chen Xia-hong☆, studying for doctorate, Associate chief physician, Department of Pediatrics, Tongji Hospital Affiliated to Tongji Medical College, Huazhong University of Science & Technology, Wuhan 430030, Hubei Province, China; Wuhan Children’s Hospital, Wuhan 430016, Hubei Province, China chenxiaohong2007d@hotmail.com
  • Supported by:

    Special Research Fund for the Doctoral Program of Higher Education, No.20090142110076

摘要:

背景:脂氧素可以抑制炎症细胞、内皮细胞、小鼠脾脏树突状细胞等合成细胞因子,还可以抑制炎性细胞因子对细胞的生物效应。
目的:分析脂氧素受体激动剂BML-111对人巨细胞病毒感染THP-1源巨噬细胞的免疫调节作用。
方法:用人巨细胞病毒 AD169毒株感染THP-1源巨噬细胞(MOI=0.5),细胞培养后设立对照组、人巨细胞病毒感染组及人巨细胞病毒+BML-111组。在感染后0,1,2,4,12,24,48,72 h收集各组细胞培养上清液,以ELISA检测各组细胞因子的表达水平; RT-PCR检测各指标mRNA的表达强度;Western blot检测感染4 h的细胞核内p65亚基蛋白表达。
结果与结论:与对照组相比,其他两组各细胞因子蛋白及mRNA表达明显升高(P < 0.05)。与人巨细胞病毒感染组相比,人巨细胞病毒+BML-111组白细胞介素1β和肿瘤坏死因子α显著降低,转化生长因子β显著升高(P < 0.05),白细胞介素10差异无显著性意义(P > 0.05);人巨细胞病毒+BML-111组各细胞因子mRNA均明显降低(P < 0.05)。与对照组相比,其他两组细胞核内NF-κB p65亚基蛋白浓度明显升高(P < 0.05);人巨细胞病毒+BML-111组显著低于人巨细胞病毒感染组(P < 0.05)。说明BML-111可能通过抑制NF-κB的p65亚基核转位,减少白细胞介素1β、肿瘤坏死因子α的表达,促进转化生长因子β的表达,从而对人巨细胞病毒感染的THP-1源巨噬细胞发挥其免疫负调节作用。

关键词: 器官移植, 移植与免疫, 巨细胞病毒, 巨噬细胞, 脂氧素, 脂氧素受体激动剂, 免疫调节, 肿瘤细胞坏死因子, 其他基金

Abstract:

BACKGROUND: Lipoxin can inhibit the synthesis of inflammatory cells, endothelial cells and mouse spleen dendritic cells into the cytokines, and it can also inhibit the biological effects of inflammatory cytokines on cells.
OBJECTIVE: To investigate the negative immunomodulatory effect of lipoxin receptor stimulating agent BML-111 on THP-1 macrophages infected by human cytomegalovirus.
METHODS: THP-1 derived macrophages were infected with human cytomegalovirus AD169 (multiplicity of infection=0.5), and the cultured cells were randomly divided into control group, human cytomegalovirus group and human cytomegalovirus+BML-111 group. Then the cell culture supernatant was collected at 0, 1, 2, 4, 12, 24, 48 and 72 hours after infection, and the expression levels of cytokines in each group were detected with enzyme-linked immunosorbent assay; mRNA levels of the factors were tested with real-time PCR; Western blot was used to detect the expression of p65 subunit protein in the nucleus after infection for 4 hours.
RESULTS AND CONCLUSION: Compared with the control group, the cytokine protein and mRNA expression both in human cytomegalovirus group and human cytomegalovirus+BML-111 group were increased significantly (P < 0.05). Compared with human cytomegalovirus group, the levels of interleukin-1β and tumor necrosis factor α in human cytomegalovirus+BML-111 group were decreased significantly, and thus the level of transforming growth factor-β was increased greatly (P < 0.05). There was no significant difference of the level of interleukin-10 between the two groups (P > 0.05) mRNA expression. mRNA expression of all the cytokines in human cytomegalovirus+BML-111 group was lower than that in human cytomegalovirus group (P < 0.05). Compared with the control group, the level of p65 subunit protein in the nucleus of human cytomegalovirus group and human cytomegalovirus+BML-111 group was increased significantly (P < 0.05). The level of p65 subunit protein in the nucleus of human cytomegalovirus+BML-111 group was lower than that of human cytomegalovirus group (P < 0.05). BML-111 may decrease the expression of interleukin-1β and tumor necrosis factor α, and promote the expression of transforming growth factor-β by inhibiting the nuclear translocation of nuclear factor-κB p65. Thus it plays negative immunoregulation effect on THP-1 macrophages infected by human cytomegalovirus.

Key words: organ transplantation, transplantation and immunology, cytomegalovirus, macrophages, lipoxin, lipoxin receptor stimulating agent, immunomodulatory, tumor necrosis factor, other grants-supported paper

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