A human T-cell line resistant to cytopathic effects of the human immunodeficiency virus (HIV).

A human T-cell line resistant to cytopathic effects of the human immunodeficiency virus (HIV).
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一种能够抵抗人类免疫缺陷病毒 (HIV) 细胞病变效应的人类 T 细胞系。

DOI:
10.1016/0042-6822(87)90434-x
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发表时间:
1987
期刊:
影响因子:
3.7
通讯作者:
Volsky,DJ
Volsky,DJ
中科院分区:
医学3区
文献类型:
--
作者:
Casareale,D;Stevenson,M;Sakai,K;Volsky,DJ

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人类免疫缺陷病毒(HIV)感染人类辅助性T淋巴细胞可导致细胞病变效应和细胞溶解的快速诱导。我们分离出一种人类T淋巴母细胞样细胞系CEM的变体,该细胞系对HIV感染完全敏感,但对病毒诱导的细胞病变效应具有抗性。将命名为CR 10的细胞暴露于HIV导致在6-9天内在100%的细胞中表达病毒抗原。病毒感染的细胞保持完全存活,并且可以在标准培养条件下培养期望的时间段。亲代CEM细胞在HIV感染后9-12天内死亡。感染后4- 5d,用Southern印迹和分子杂交技术检测到CR-10细胞中的前病毒DNA,在第6-10 d达到高峰,并在8个月的随访期内保持稳定。通过电子显微镜和检测细胞培养上清液中的逆转录酶活性来记录HIV感染的CR-10细胞的病毒产生。HIV感染的CR-10细胞表现出OKT-3、OKT-4、OKT-4A、OKT-8和OKT-11 T细胞表面标志物的下调,但OKT-9(转铁蛋白受体)没有下调。其中一个HIV持续感染的CR-10细胞克隆已连续培养8个月以上。在此期间,细胞保持完全存活,HIV抗原100%阳性,大多数T细胞表面标志物检测呈阴性,并继续产生具有生物活性的HIV。CR-10和HIV感染的CR-10细胞系将用于HIV生物学的研究以及这种病毒的分离和大规模繁殖。
Infection of human helper T lymphocytes with the human immunodeficiency virus (HIV) results in a rapid induction of cytopathic effects and cell lysis. We isolated a variant of the human T-lymphoblastoid cell line, CEM, that is fully susceptible to HIV infection but resistant to virally induced cytopathic effects. Exposure of the cells, designated CR10, to HIV resulted in the expression of viral antigens in 100% of cells within 6–9 days. Virus-infected cells remained fully viable and could be cultivated under standard culture conditions for a desired period of time. Parental CEM cells died within 9–12 days after HIV infection. Proviral DNA could be detected in the HIV-infected CR-10 cells by Southern blot and molecular hybridization 4–5 days after infection; the relative amount of proviral DNA reached maximum at Days 6–10 and remained stable during an 8-month follow-up period. Virus production by HIV-infected CR-10 cells was documented by electron microscopy and detection of reverse transcriptase activity in cell culture supernatants. HIV-infected CR-10 cells exhibited a down modulation of the OKT-3, OKT-4, OKT-4A, OKT-8, and OKT-11 T-cell surface markers, but not of the OKT-9 (transferrin receptor). One of the HIV persistently infected CR-10 cell clones has been kept in continuous culture for over 8 months. During this period, the cells remained fully viable, 100% positive for HIV antigens, and negative for most of the T-cell surface markers tested and continued to produce biologically active HIV. The CR-10 and HIV-infected CR-10 cell lines will be useful in studies on the biology of HIV and in the isolation and large-scale propagation of this virus.
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DOI: --
发表时间: 1982
影响因子: 39.2
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发表时间: 1985
影响因子: 4.4
作者:
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DOI: 10.1126/science.3001934
发表时间: 1986-01-24
期刊: SCIENCE
影响因子: 56.9
作者:
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通讯作者: NICHOLSON, JKA
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DOI: --
发表时间: 1986
期刊: Science
影响因子: 56.9
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通讯作者: William C. Sanchez