Virus Name | Hantaan virus |
Virus Short Name | HTNV |
Order | Bunyavirales |
Virus Family | Hantaviridae |
Virus Subfamily | N.A. |
Genus | Orthohantavirus |
Species | Hantaan virus |
Host | Rodents and human |
Cell Tropism | N.A. |
Associated Disease | Hantavirus pulmonary syndrome and hemorrhagic fever with renal syndrome |
Mode of Transmission | By urine and saliva |
VIPR DB link | http://www.viprbrc.org/brc/vipr_allSpecies_search.do?method=SubmitForm&decorator=bunya |
ICTV DB link | N.A. |
Virus Host DB link | N.A. |
Paper Title | Hantaan Virus Triggers TLR4-Dependent Innate Immune Responses |
Author's Name | Hai-Tao Yu , Hong Jiang, Ye Zhang, Xue-Ping Nan, Yu Li, Wei Wang, Wei Jiang, Dong-Qiang Yang, Wen-Jing Su, Jiu-Ping Wang, Ping-Zhong Wang , and Xue-Fan Bai |
Journal Name | Viral Immunology |
Pubmed ID | 22775464 |
Abstract | The innate immune response induced by Hantavirus is responsible for endothelial cell dysfunction and viral pathogenicity. Recent studies demonstrate that TLR4 expression is upregulated and mediates the secretion of several cytokines in Hantaan virus (HTNV)-infected endothelial cells. To examine viral interactions with host endothelial cells and characterize the innate antiviral responses associated with Toll-like receptors, we selected TLR4 as the target molecule to investigate anti-hantavirus immunity. TLR4 mRNA-silenced EVC-304 (EVC-304 TLR4–) cells and EVC-304 cells were used to investigate signaling molecules downstream of TLR4. The expression of the adaptor protein TRIF was higher in HTNV-infected EVC-304 cells than in EVC-304 TLR4– cells. However, there was no apparent difference in the expression of MyD88 in either cell line. The transcription factors for NF-κB and IRF-3 were translocated from the cytoplasm into the nucleus in HTNV-infected EVC-304 cells, but not in HTNV-infected EVC-304 TLR4– cells. Our results demonstrate that TLR4 may play an important role in the antiviral immunity of the host against HTNV infection through an MyD88-independent signaling pathway. |
Used Model | Vero E6 cells |
DOI | 10.1089/vim.2012.0005 |