Human cytomegalovirus-infected cells have unstable assembly of major histocompatibility complex class I complexes and are resistant to lysis by cytotoxic T lymphocytes

Human cytomegalovirus-infected cells have unstable assembly of major histocompatibility complex class I complexes and are resistant to lysis by cytotoxic T lymphocytes
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人巨细胞病毒感染的细胞具有不稳定的主要组织相容性复合物 I 类复合物的组装,并且能够抵抗细胞毒性 T 淋巴细胞的裂解

DOI:
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发表时间:
1994
影响因子:
5.4
通讯作者:
L. Borysiewicz
L. Borysiewicz
中科院分区:
医学2区
文献类型:
--
作者:
A. P. Warren;D. Ducroq;P. Lehner;L. Borysiewicz

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在自然感染的宿主中引起持久性的病毒被预测具有进化的免疫逃避机制。人巨细胞病毒(HCMV)在免疫功能低下的患者中引起显著的发病率和死亡率,但在具有正常免疫功能的血清阳性个体中持续存在而无临床表现。我们报告,HCMV感染在体外损害主要组织相容性复合物I类(MHC-I)的装配伴随着抵抗杀伤细胞毒性CD 8 + T淋巴细胞。脉冲追踪代谢标记实验表明,MHC-I复合物继续由未感染和HCMV感染的细胞组装。然而,MHC-I分子在HCMV感染的细胞中是不稳定的,并且被迅速分解。免疫沉淀物的糖苷内切酶H处理表明,HCMV感染细胞中MHC-I复合物的分解主要发生在前高尔基体区室。干扰正常的MHC-I组装和表达,如果在体内相关,可能会影响针对HCMV抗原的CD 8+细胞毒性T淋巴细胞库的多样性的限制,并可能是病毒持续存在的重要机制。
Viruses which cause persistence in the naturally infected host are predicted to have evolved immune evasion mechanisms. Human cytomegalovirus (HCMV) causes significant morbidity and mortality in immunocompromised patients yet persists without clinical manifestations in seropositive individuals who have normal immune function. We report that HCMV infection in vitro impairs major histocompatibility complex class I (MHC-I) assembly accompanied by resistance to killing by cytotoxic CD8+ T lymphocytes. Pulse-chase metabolic labelling experiments show that MHC-I complexes continue to be assembled by both uninfected and HCMV-infected cells. However, MHC-I molecules are unstable in HCMV-infected cells and are rapidly broken down. Endoglycosidase H treatment of immunoprecipitates indicates that the breakdown of MHC-I complexes in HCMV-infected cells occurs primarily in a pre-Golgi compartment. Interference with normal MHC-I assembly and expression, if relevant in vivo, may have implications for the restriction of the diversity of the CD8+ cytotoxic T lymphocyte repertoire directed against HCMV antigens and may be an important mechanism of viral persistence.
腺病毒 2 E3/19K 糖蛋白对 H-2Kb 和 H-2Db I 类抗原的表达以及 H-2Kb 和 H-2Db 限制性 SV40 特异性 CTL 介导的裂解的差异作用。
DOI: 10.1016/0042-6822(88)90580-6
发表时间: 1988
期刊: Virology
影响因子: 3.7
作者:
Tanaka,Y;Tevethia,SS
通讯作者: Tevethia,SS
DOI: 10.1089/dna.1983.2.329
发表时间: 1983-01-01
期刊: DNA-A JOURNAL OF MOLECULAR & CELLULAR BIOLOGY
影响因子: --
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I 类 MHC 限制性细胞毒性 T 淋巴细胞识别感染人巨细胞病毒的细胞不需要内源病毒基因表达。
DOI: --
发表时间: 1991
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Riddell,SR;Rabin,M;Geballe,AP;Britt,WJ;Greenberg,PD
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人类成纤维细胞和角质形成细胞的单纯疱疹病毒感染抑制克隆的 CD8 细胞毒性 T 淋巴细胞的识别。
DOI: 10.1172/jci116317
发表时间: 1993
期刊: The Journal of clinical investigation
影响因子: --
作者:
Koelle,DM;Tigges,MA;Burke,RL;Symington,FW;Riddell,SR;Abbo,H;Corey,L
通讯作者: Corey,L