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- W1973284965 abstract "Toll is a cell surface receptor with well described roles in the developmental patterning of invertebrates and innate immunity in adult Drosophila . Mammalian toll-like receptors represent a family of Toll orthologs that function in innate immunity by recognizing molecular motifs unique to pathogens or injured tissue. One member in this family of pattern recognition receptors, toll-like receptor 3 (TLR3), recognizes viral double-stranded RNA and host mRNA. We examined the expression and function of TLRs in the nervous system and found that TLR3 is expressed in the mouse central and peripheral nervous systems and is concentrated in the growth cones of neurons. Activation of TLR3 by the synthetic ligand polyinosine:polycytidylic acid (poly I:C) or by mRNA rapidly causes growth cone collapse and irreversibly inhibits neurite extension independent of nuclear factor κB. Mice lacking functional TLR3 were resistant to the neurodegenerative effects of poly I:C. Neonatal mice injected with poly I:C were found to have fewer axons exiting dorsal root ganglia and displayed related sensorimotor deficits. No effect of poly I:C was observed in mice lacking functional TLR3. Together, these findings provide evidence that an innate immune pattern recognition receptor functions autonomously in neurons to regulate axonal growth and advances a novel hypothesis that this class of receptors may contribute to injury and limited CNS regeneration." @default.
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- W1973284965 date "2007-11-21" @default.
- W1973284965 modified "2023-10-07" @default.
- W1973284965 title "Toll-Like Receptor 3 Is a Potent Negative Regulator of Axonal Growth in Mammals" @default.
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- W1973284965 doi "https://doi.org/10.1523/jneurosci.4290-06.2007" @default.
- W1973284965 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/4313565" @default.
- W1973284965 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/18032677" @default.
- W1973284965 hasPublicationYear "2007" @default.
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