中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (29): 4593-4598.doi: 10.3969/j.issn.2095-4344.2014.29.001

• 组织构建细胞学实验 cytology experiments in tissue construction •    下一篇

脂氧素受体激动剂对巨细胞病毒复制增殖的影响

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
  • 修回日期:2014-05-26 出版日期:2014-07-09 发布日期:2014-07-09
  • 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
  • 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,湖北省武汉市儿童医院副主任医师,主要从事儿科感染方面的研究。
  • 基金资助:

    高等学校博士学科点专项科研基金(20090142110076)

Effect of lipoxin receptor agonist on human cytomegalovirus replication and proliferation

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

  1. 1Department of Pediatrics, Tongji Hospital Affiliated to Tongji Medical College, Huazhong University of Science & Technology, Wuhan 430030, Hubei Province, China; 2Wuhan Children’s Hospital, Wuhan 430016, Hubei Province, China
  • Revised:2014-05-26 Online:2014-07-09 Published:2014-07-09
  • Contact: Fang Feng, M.D., Professor, Department of Pediatrics, Tongji Hospital Affiliated to Tongji Medical College, Huazhong University of Science & Technology, Wuhan 430030, Hubei Province, China
  • About author:Chen Xiao-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
  • Supported by:

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

摘要:

背景:脂氧素的抗炎及保护效应已经在多种免疫相关疾病模型中被验证,课题组前期研究结果亦显示,脂氧素受体激动剂BML-111对巨细胞病毒诱导的免疫损伤有负调节作用,那么,它对病毒的复制将产生怎样的影响呢?

目的:观察脂氧素受体激动剂BML-111对人巨细胞病毒在THP-1源巨噬细胞及人胚肺成纤维细胞中复制增殖的影响。
方法:用HCMV AD169毒株感染THP-1源巨噬细胞(MOI=0.5),设立模拟感染组、人巨细胞病毒感染组及人巨细胞病毒+BML-111组,BML-111的终浓度为100 nmol/L;于感染后0,1,2,4,12,24,36,48 h收集各组细胞,用RT-PCR法检测细胞中IE86和pp65 mRNA的水平;人巨细胞病毒感染人胚肺成纤维细胞(MOI=0.1),设立人巨细胞病毒感染组与人巨细胞病毒+BML-111组,逐日光镜观察人胚肺成纤维细胞病变并计数其比率;蚀斑法测定人胚肺成纤维细胞内感染性人巨细胞病毒滴度。

结果与结论:人巨细胞病毒感染巨噬细胞后,与模拟感染组相比,人巨细胞病毒感染组和人巨细胞病毒+ BML-111组IE86 mRNA及pp65 mRNA表达明显升高;与人巨细胞病毒感染组相比,人巨细胞病        毒+BML-111组IE86 mRNA及pp65 mRNA在细胞感染早期(4 h内)表达明显升高,但在感染中晚期 (24-72 h),pp65 mRNA的表达明显降低。人巨细胞病毒感染人胚肺成纤维细胞后,与人巨细胞病毒感染组相比,人巨细胞病毒+BML-111组细胞提前2 d达到100%细胞病变;感染性病毒滴度提前2 d达到峰值,但两组病毒滴度峰值差异无显著性意义。结果显示BML-111在感染早期加快人巨细胞病毒在细胞内的复制速度,在感染晚期抑制pp65基因表达;BML-111在体外对人巨细胞病毒的感染性病毒增殖量无影响。



中国组织工程研究
杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程


全文链接:

关键词: 组织构建, 组织工程, 巨细胞病毒, 巨噬细胞, 胚肺成纤维细胞, 脂氧素, 病毒复制

Abstract:

BACKGROUND: The anti-inflammation and protective effects of lipoxin have been verified in several immunity-related disease models. Preliminary studies of our research group have shown that, lipoxin receptor agonist BML-111 has negative regulation effects on the human cytomegalovirus (HCMV)-induced immunological injury. However, the effect of BML-111 on the HCMV replication remains unclear.

OBJECTIVE: To observe the influence of lipoxin receptor agonist BML-111 on HCMV replication and proliferation in THP-1 macrophages and human embryonic lung fibroblasts.
METHODS: THP-1 macrophages were infected by HCMV AD169 strain, and were divided into three groups: mock infection, HCMV infection, HCMV+BML-111. The final concentration of BML-111 was 100 nmol/L. Cells in each group were collected at 0, 1, 2, 4, 12, 36, 48 hours, the mRNA levels of IE86 and pp65 in the THP-1 macrophages were tested by RT-PCR method. Human embryonic lung fibroblasts were infected with HCMV (MOI=0.1), and were divided into two groups: HCMV infection and HCMV+BML-111. The patho-morphous changes of human embryonic lung fibroblasts were observed under light microscope, and the cell number was measured. The infective virus titer changes in human embryonic lung fibroblasts were examined by plaque assay.
RESULTS AND CONCLUSION: After the macrophages were infected by HCMV, compared with the mock infection group, the mRNA levels of IE86 and pp65 in the HCMV group and HCMV+BML-111 group were increased significantly; compared with the HCMV infection group, the mRNA levels of IE86 and pp65 in the HCMV+BML-111 group were increased significantly in the early stage (within 4 hours) after infection, but the pp65 mRNA levels were decreased significantly in the medium and late stages (24-72 hours) after infection. After human embryonic lung fibroblasts were infected by HCMV, the degree of the patho-morphous in the HCMV+BML-111 group reached 100% 2 days earlier than the of HCMV infection group. The infective virus titer reached the peak 2 days earlier than the HCMV infection group, but no significant difference was found between the two groups. BML-111 accelerates the replication of HCMV in the early stage of infection, but inhibits the expression of pp65 gene in the late stage. BML-111 has no impact on the proliferation of the infective HCMV titer in vitro.


中国组织工程研究
杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程


全文链接:

Key words: cytomegalovirus, cytomegalovirus infections, macrophages, lipoxins, virus replication

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