Human herpesvirus 6 envelope cholesterol is required for virus entry

被引:52
作者
Huang, HL
Li, YM
Sadaoka, T
Tang, HM
Yamamoto, T
Yamanishi, K
Mori, Y
机构
[1] Osaka Univ, Grad Sch Med, Dept Microbiol, Suita, Osaka 5650871, Japan
[2] Natl Inst Biomed Innovat, Div Biomed Res, Lab Virol & Vaccinol, Ibaraki, Osaka 5670085, Japan
[3] Osaka Univ, Res Fdn Microbial Dis, Kagawa 7680061, Japan
关键词
D O I
10.1099/vir.0.81551-0
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 [微生物学]; 0836 [生物工程]; 090102 [作物遗传育种]; 100705 [微生物与生化药学];
摘要
In this study, the role of cholesterol in the envelope of human herpesvirus 6 (HHV-6) was examined by using methyl-beta-cyclodextrin (M beta CD) depletion. When cholesterol was removed from HHV-6 virions with M beta CD, infectivity was abolished, but it could be rescued by the addition of exogenous cholesterol. HHV-6 binding was affected slightly by M beta CD treatment, In contrast, envelope cholesterol depletion markedly affected HHV-6 infectivity and HHV-6-induced cell fusion. These results suggest that the cholesterol present in the HHV-6 envelope plays a prominent role in the fusion process and is a key component in viral entry.
引用
收藏
页码:277 / 285
页数:9
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