The mannose receptor mediates dengue virus infection of macrophages

被引：331

作者：

Miller, Joanna L. ^{[1
]}

Dewet, Barend J. M. ^{[1
]}

Martinez-Pomares, Luisa ^{[2
]}

Radcliffe, Catherine M. ^{[3
]}

Dwek, Raymond A. ^{[3
]}

Rudd, Pauline M. ^{[3
]}

Gordon, Siamon ^{[1
]}

机构：

[1] Univ Oxford, Sir William Dunn Sch Pathol, Oxford OX1 3RE, England

[2] Univ Nottingham, Queens Med Ctr, Inst Infect Immun & Inflammat, Sch Mol Med Sci, Nottingham NG7 2RD, England

[3] Univ Oxford, Dept Biochem, Glycobiol Inst, Oxford, England

来源：

PLOS PATHOGENS | 2008年 / 4卷 / 02期

关键词：

D O I：

10.1371/journal.ppat.0040017

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

Macrophages ( MO) and mononuclear phagocytes are major targets of infection by dengue virus ( DV), a mosquito-borne flavivirus that can cause haemorrhagic fever in humans. To our knowledge, we show for the first time that the MO mannose receptor ( MR) binds to all four serotypes of DV and specifically to the envelope glycoprotein. Glycan analysis, ELISA, and blot overlay assays demonstrate that MR binds via its carbohydrate recognition domains to mosquito and human cell - produced DV antigen. This binding is abrogated by deglycosylation of the DV envelope glycoprotein. Surface expression of recombinant MR on NIH3T3 cells confers DV binding. Furthermore, DV infection of primary human MO can be blocked by anti-MR antibodies. MR is a prototypic marker of alternatively activated MO, and pre-treatment of human monocytes or MO with type 2 cytokines ( IL-4 or IL-13) enhances their susceptibility to productive DV infection. Our findings indicate a new functional role for the MR in DV infection.

引用

页数：11

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