Induction of feline immunodeficiency virus-specific cytolytic T-cell responses from experimentally infected cats

Induction of feline immunodeficiency virus-specific cytolytic T-cell responses from experimentally infected cats
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从实验感染的猫中诱导猫免疫缺陷病毒特异性溶细胞 T 细胞反应

DOI:
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发表时间:
1992
影响因子:
5.4
通讯作者:
W. Brown
W. Brown
中科院分区:
医学2区
文献类型:
--
作者:
W. Song;E. Collisson;P. Billingsley;W. Brown

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我们研究了猫免疫缺陷病毒(FIV)特异性细胞溶解T细胞的体外诱导和活性,这些细胞来自被FIV Petaluma分离物感染7至17周或20至22个月的猫。使用正常或fiv感染的自体和异体T淋巴母细胞样细胞作为靶细胞进行铬-51或铟-111释放试验。当效应细胞由新鲜的外周血单个核细胞或豆豆蛋白A和白细胞介素2刺激的细胞组成时,只观察到低水平的细胞毒性。然而,两组猫在体外用辐照的、fiv感染的自体T淋巴母细胞样细胞和白细胞介素-2刺激效应细胞后,fiv特异性细胞毒性水平始终较高。效应细胞能裂解自体而非异体fiv感染的靶细胞,并且主要由CD8+ T细胞组成,这表明在该系统中测量的fiv特异性细胞毒性是由CD8+介导的,主要组织相容性复合体i类限制性T细胞。这些研究表明,fiv特异性的细胞溶解T细胞可以在感染后7至9周被检测到,并且它们定义了一个系统来识别在诱导针对慢病毒的保护性免疫中重要的病毒编码表位。
We have examined the in vitro induction and activity of feline immunodeficiency virus (FIV)-specific cytolytic T cells obtained from cats experimentally infected for 7 to 17 weeks or 20 to 22 months with the Petaluma isolate of FIV. Normal or FIV-infected autologous and allogeneic T lymphoblastoid cells were used as target cells in chromium-51 or indium-111 release assays. When effector cells consisted of either fresh peripheral blood mononuclear cells or concanavalin A- and interleukin-2-stimulated cells, only low levels of cytotoxicity were observed. However, the levels of FIV-specific cytotoxicity were consistently higher in both groups of cats following in vitro stimulation of the effector cells with irradiated, FIV-infected autologous T lymphoblastoid cells and interleukin-2. The effector cells lysed autologous but not allogeneic FIV-infected target cells and were composed predominantly of CD8+ T cells, indicating that the FIV-specific cytotoxicity measured in this system is mediated by CD8+, major histocompatibility complex class I-restricted T cells. These studies show that FIV-specific cytolytic T cells can be detected as early as 7 to 9 weeks postinfection, and they define a system to identify virus-encoded epitopes important in the induction of protective immunity against lentiviruses.
由单克隆抗体 (FT2) 定义的猫胸腺细胞抗原可识别具有特定细胞毒性的非辅助细胞亚群。
DOI: --
发表时间: 1986
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Klotz,FW;Cooper,MD
通讯作者: Cooper,MD
感染猕猴猿免疫缺陷病毒的恒河猴体内的 gag 特异性细胞毒性 T 淋巴细胞。
DOI: --
发表时间: 1990
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Miller,MD;Lord,CI;Stallard,V;Mazzara,GP;Letvin,NL
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CD8 淋巴细胞抑制猴免疫缺陷病毒体外复制。
DOI: --
发表时间: 1988
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Kannagi,M;Chalifoux,LV;Lord,CI;Letvin,NL
通讯作者: Letvin,NL
DOI: --
发表时间: 1989-01
期刊: Journal of the American Veterinary Medical Association
影响因子: --
作者:
J. Yamamoto;H. Hansen;E. Ho;T. Morishita;T. Okuda;T. Sawa;R. Nakamura;N. Pedersen
通讯作者: J. Yamamoto;H. Hansen;E. Ho;T. Morishita;T. Okuda;T. Sawa;R. Nakamura;N. Pedersen
在用表达艾滋病病毒包膜糖蛋白的重组痘苗病毒免疫的黑猩猩中,T细胞对艾滋病病毒糖蛋白具有增殖性和细胞毒性。
DOI: --
发表时间: 1987
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Zarling,JM;Eichberg,JW;Moran,PA;McClure,J;Sridhar,P;Hu,SL
通讯作者: Hu,SL