T cells overexpressing interferon-gamma and interleukin-10 are found in both the thymus and secondary lymphoid tissues of feline immunodeficiency virus-infected cats.

T cells overexpressing interferon-gamma and interleukin-10 are found in both the thymus and secondary lymphoid tissues of feline immunodeficiency virus-infected cats.
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在猫免疫缺陷病毒感染的猫的胸腺和次级淋巴组织中都发现了过度表达干扰素 γ 和白细胞介素 10 的 T 细胞。

DOI:
10.1086/315226
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发表时间:
2000
期刊:
The Journal of infectious diseases.
影响因子:
--
通讯作者:
Tompkins,MB
Tompkins,MB
中科院分区:
--
文献类型:
--
作者:
Liang,Y;Hudson,LC;Levy,JK;Ritchey,JW;Tompkins,WA;Tompkins,MB

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与人类免疫缺陷病毒1型类似,猫免疫缺陷病毒(FIV)在感染动物的胸腺中复制,引起胸腺淋巴细胞亚群的明显改变。研究了fiv感染猫胸腺和次级淋巴组织的免疫表型和细胞因子模式。FIV感染引起急性期CD4CD8双阳性胸腺细胞一过性减少,CD8单阳性胸腺细胞显著增加,胸腺B细胞淋巴滤泡形成。fiv感染猫胸腺和淋巴结中干扰素(IFN)-γ和白细胞介素(IL)-10 mRNA均上调。纯化的CD4和CD8细胞分析显示,CD4细胞产生大部分IL-10,而IFN-γ由两个亚群产生。定量竞争反转录聚合酶链反应分析显示,胸腺细胞,特别是CD4CD8胸腺细胞,比淋巴结T细胞具有更高水平的gagmrna。因此,IFN-γ和IL-10的过表达是感染fiv的猫胸腺和次级淋巴组织的一个特征。
Similar to human immunodeficiency virus type 1, feline immunodeficiency virus (FIV) replicates in the thymus of infected animals, causing marked alteration in thymic lymphocyte subpopulations. The immune phenotype and cytokine patterns in the thymus and secondary lymphoid tissues of FIV-infected cats were investigated. FIV infection caused an acute-stage transient reduction in CD4CD8 double-positive thymocytes, a marked increase in CD8 single-positive thymocytes, and formation of thymic B cell lymphoid follicles. Interferon (IFN)-γand interleukin (IL)-10 mRNA were up-regulated in both the thymus and lymph nodes of FIV-infected cats. Analysis of purified CD4 and CD8 cells revealed that CD4 cells produced most of the IL-10, whereas IFN-γwas produced by both subsets. Quantitative-competitive reverse-transcription polymerase chain reaction analysis revealed that thymocytes, especially CD4CD8 thymocytes, had much greater levels ofgagmRNA than did lymph node T cells. Thus, overexpression of IFN-γand IL-10 is a feature of the thymus and secondary lymphoid tissues of FIV-infected cats.
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