Human cytomegalovirus microRNA miR-US4-1 inhibits CD8(+) T cell responses by targeting the aminopeptidase ERAP1.
Human cytomegalovirus microRNA miR-US4-1 inhibits CD8(+) T cell responses by targeting the aminopeptidase ERAP1.
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DOI:
10.1038/ni.2097
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发表时间:
2011-09-04
影响因子:
30.5
通讯作者:
中科院分区:
文献类型:
--
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The major histocompatibility complex (MHC) class I molecules present peptides on the cell surface by CD8+ T cells, which is critical for killing of virally infected or transformed cells. Precursors of MHC class I-presented peptides are trimmed to mature epitopes by endoplasmic reticulum aminopeptidase 1 (ERAP1). The US2-US11 genomic region of human cytomegalovirus (HCMV) is dispensable for viral replication and harbors 3 microRNAs (miRNAs). We show here the HCMV miR-US4-1 specifically down-regulates ERAP1 expression during viral infection. Accordingly, the trimming of HCMV-derived peptides is inhibited, leading to reduced susceptibility of infected cells to HCMV-specific cytotoxic T lymphocytes (CTLs). Our findings reveal a novel viral miRNA-based CTL evasion mechanism that targets a key step in the MHC class I antigen-processing pathway.
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影响因子:
15.3
作者:
Machold, R P;Wiertz, E J;Jones, T R;Ploegh, H L
通讯作者:
Ploegh, H L
影响因子:
64.8
作者:
Cullen, Bryan R.
通讯作者:
Cullen, Bryan R.
DOI:
10.1126/science.1185350
发表时间:
2010-04-02
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Hansen SG;Powers CJ;Richards R;Ventura AB;Ford JC;Siess D;Axthelm MK;Nelson JA;Jarvis MA;Picker LJ;Früh K
通讯作者:
Früh K
影响因子:
20.3
作者:
Manley, TJ;Luy, L;Riddell, SR
通讯作者:
Riddell, SR
影响因子:
7.5
作者:
Chekulaeva, Marina;Filipowicz, Witold
通讯作者:
Filipowicz, Witold