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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2010-7-20
pubmed:abstractText
Having recently characterized a CD-1 outbred mouse model of pathogenesis for Western equine encephalitis virus, we examined the possible protective effects of cationic liposome-DNA complexes (CLDCs) against encephalitic arboviral infection. In this investigation, mice were pre-treated, co-treated, or post-treated with CLDC then challenged with a subcutaneous or aerosol dose of the highly virulent WEEV-McMillan strain, lethal in mice 4-5 days after inoculation. Pre-treatment with CLDCs provided a significant protective effect in mice, which was reflected in significantly increased survival rates. Further, in some instances a therapeutic effect of CLDC administration up to 12h after WEEV challenge was observed. Mice treated with CLDC had significantly increased serum IFN-gamma, TNF-alpha, and IL-12, suggesting a strong Th1-biased antiviral activation of the innate immune system. In virus-infected animals, large increases in production of IFN-gamma, TNF-alpha, MCP-1, IL-12, and IL-10 in the brain were observed by 72h after infection, consistent with neuroinvasion and viral replication in the CNS. These results indicate that strong non-specific activation of innate immunity with an immune therapeutic such as CLDC is capable of eliciting significant protective immunity against a rapidly lethal strain of WEEV and suggest a possible prophylactic option for exposed individuals.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
1872-9096
pubmed:author
pubmed:copyrightInfo
Copyright 2010 Elsevier B.V. All rights reserved.
pubmed:issnType
Electronic
pubmed:volume
87
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
195-203
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Treatment with cationic liposome-DNA complexes (CLDCs) protects mice from lethal Western equine encephalitis virus (WEEV) challenge.
pubmed:affiliation
Division of Vector-Borne Infectious Diseases, Centers for Disease Control, Fort Collins, CO 80521, USA.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't