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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2010-8-5
pubmed:abstractText
Cross-talk between NK cells and dendritic cells (DCs) is critical for the potent therapeutic response to dsRNA, but the receptors involved remained controversial. We show in this paper that two dsRNAs, polyadenylic-polyuridylic acid and polyinosinic-polycytidylic acid [poly(I:C)], similarly engaged human TLR3, whereas only poly(I:C) triggered human RIG-I and MDA5. Both dsRNA enhanced NK cell activation within PBMCs but only poly(I:C) induced IFN-gamma. Although myeloid DCs (mDCs) were required for NK cell activation, induction of cytolytic potential and IFN-gamma production did not require contact with mDCs but was dependent on type I IFN and IL-12, respectively. Poly(I:C) but not polyadenylic-polyuridylic acid synergized with mDC-derived IL-12 for IFN-gamma production by acting directly on NK cells. Finally, the requirement of both TLR3 and Rig-like receptor (RLR) on mDCs and RLRs but not TLR3 on NK cells for IFN-gamma production was demonstrated using TLR3- and Cardif-deficient mice and human RIG-I-specific activator. Thus, we report the requirement of cotriggering TLR3 and RLR on mDCs and RLRs on NK cells for a pathogen product to induce potent innate cell activation.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
1550-6606
pubmed:author
pubmed:issnType
Electronic
pubmed:day
15
pubmed:volume
185
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2080-8
pubmed:meshHeading
pubmed-meshheading:20639488-Adaptor Proteins, Signal Transducing, pubmed-meshheading:20639488-Animals, pubmed-meshheading:20639488-Cell Line, pubmed-meshheading:20639488-Cells, Cultured, pubmed-meshheading:20639488-DEAD-box RNA Helicases, pubmed-meshheading:20639488-Dendritic Cells, pubmed-meshheading:20639488-Dose-Response Relationship, Drug, pubmed-meshheading:20639488-Humans, pubmed-meshheading:20639488-Interferon-gamma, pubmed-meshheading:20639488-Killer Cells, Natural, pubmed-meshheading:20639488-Lymphocyte Activation, pubmed-meshheading:20639488-Mice, pubmed-meshheading:20639488-Mice, Inbred C57BL, pubmed-meshheading:20639488-Mice, Knockout, pubmed-meshheading:20639488-Myeloid Cells, pubmed-meshheading:20639488-Poly A-U, pubmed-meshheading:20639488-Poly I-C, pubmed-meshheading:20639488-RNA, Double-Stranded, pubmed-meshheading:20639488-Toll-Like Receptor 3, pubmed-meshheading:20639488-Transfection
pubmed:year
2010
pubmed:articleTitle
TLR3 and Rig-like receptor on myeloid dendritic cells and Rig-like receptor on human NK cells are both mandatory for production of IFN-gamma in response to double-stranded RNA.
pubmed:affiliation
Innate-Pharma, Marseille, France.
pubmed:publicationType
Journal Article