Temporal patterns of feline immunodeficiency virus transcripts in peripheral blood cells during the latent stage of infection.

Temporal patterns of feline immunodeficiency virus transcripts in peripheral blood cells during the latent stage of infection.
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感染潜伏期外周血细胞中猫免疫缺陷病毒转录物的时间模式。

DOI:
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发表时间:
1995
影响因子:
3.8
通讯作者:
T. Mikami
T. Mikami
中科院分区:
医学3区
文献类型:
--
作者:
K. Tomonaga;Y. Inoshima;Y. Ikeda;T. Mikami

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我们已经调查了猫免疫缺陷病毒(FIV)的转录在外周血单核细胞(PBMC)的慢性FIV感染,无症状的猫在体内状态。在这些猫的外周血单个核细胞中检测到了高比例的FIV,但在血浆中未检测到。通过定量逆转录-PCR(RT-PCR)分析。PBMC中的FIV转录状态的特征在于极低或不可检测水平的未剪接或单剪接的mRNA和主要是多剪接的mRNA。然而,在体外刺激后,在PBMC中迅速诱导较大的mRNA种类和感染性病毒产生。此外,我们证明了病毒的产生与编码FIV调节蛋白的每个多剪接mRNA水平的差异增加相关。从这些结果中,我们认为,复制FIV在体内的基因表达的早期阶段被阻止,如无症状的人类免疫缺陷病毒(HIV)感染的患者中所描述的,和FIV感染的猫可能是一个有用的模型HIV感染的临床潜伏期在man. Fine,我们建议,在体内的复制FIV可能是由每个多剪接mRNA的差异表达控制。
We have investigated the in vivo state of feline immunodeficiency virus (FIV) transcription in peripheral blood mononuclear cells (PBMC) of chronically FIV-infected, asymptomatic cats. FIV was detected in a high percentage of PBMC but not in the plasma of these cats. By quantitative reverse transcription-PCR (RT-PCR) analysis. FIV transcriptional status in the PBMC was characterized by extremely low or undetectable levels of unspliced or singly spliced mRNAs and predominantly multiply spliced mRNAs. Upon stimulation in vitro, however, the larger mRNA species and infectious virus production were rapidly induced in the PBMC. Furthermore, we demonstrated that viral production was induced in association with differential increases in the levels of each multiply spliced mRNA coding for FIV regulatory proteins. From these results, we suggest that replication of FIV is blocked at an early stage of gene expression in vivo, as described in asymptomatic human immunodeficiency virus (HIV) -infected patients, and that FIV infection in cats may be a useful model for clinical latency of HIV infection in man. Moreover, we propose that the replication of FIV in vivo may be controlled by the differential expression of each multiply spliced mRNA.
人类免疫缺陷病毒 1 型的增强表达与艾滋病的发展相关。
DOI: 10.1006/viro.1993.1514
发表时间: 1993
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影响因子: 3.7
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发表时间: 1994
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发表时间: 1994-04-26
影响因子: 11.1
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通讯作者: EMERMAN, M
DOI: --
发表时间: 1988-08
影响因子: 1
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通讯作者: J. Yamamoto;E. Sparger;E. Ho;P. Andersen;T. O'connor;C. P. Mandell;L. Lowenstine;R. Munn;N. Pedersen