Abstract
Toll-like receptors (Tlrs) are transmembrane proteins that have recently been shown to play a critical role in the innate immune recognition of microbial constituents. Among this family, Tlr4 is a crucial signal transducer for lipopolysaccharide (LPS), the major component of the Gram-negative bacteria outer cell membrane. In this paper, we report that C57BL/6.KB2-mnd mice, a model of neuronal ceroid lipofuscinosis, do not respond to LPS. This defect is associated with a spontaneous mutation in Tlr4 consisting of a large insertion within exon 2 predicting a frameshift mutation and a truncated protein.
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DM is a Scholar of Fonds de la Recherche en Santé du Québec (FRSQ) and a Scientist from the Canadian Institutes for Health Research. STQ is a recipient of a Clinician Scientist Award from MRC and a Career Award in the Biomedical Sciences from the Burroughs Wellcome Fund. This work was supported by research grant from the Medical Research Council of Canada.
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Bihl, F., Larivière, L., Qureshi, S. et al. LPS-hyporesponsiveness of mnd mice is associated with a mutation in Toll-like receptor 4. Genes Immun 2, 56–59 (2001). https://doi.org/10.1038/sj.gene.6363732
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DOI: https://doi.org/10.1038/sj.gene.6363732
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