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  • Immunity, Innate  (2)
  • American Association for the Advancement of Science (AAAS)  (2)
  • 1
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    TLR11 activation of dendritic cells by a protozoan profilin-like protein (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2005-04-30
    Description: Mammalian Toll-like receptors (TLRs) play an important role in the innate recognition of pathogens by dendritic cells (DCs). Although TLRs are clearly involved in the detection of bacteria and viruses, relatively little is known about their function in the innate response to eukaryotic microorganisms. Here we identify a profilin-like molecule from the protozoan parasite Toxoplasma gondii that generates a potent interleukin-12 (IL-12) response in murine DCs that is dependent on myeloid differentiation factor 88. T. gondii profilin activates DCs through TLR11 and is the first chemically defined ligand for this TLR. Moreover, TLR11 is required in vivo for parasite-induced IL-12 production and optimal resistance to infection, thereby establishing a role for the receptor in host recognition of protozoan pathogens.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yarovinsky, Felix -- Zhang, Dekai -- Andersen, John F -- Bannenberg, Gerard L -- Serhan, Charles N -- Hayden, Matthew S -- Hieny, Sara -- Sutterwala, Fayyaz S -- Flavell, Richard A -- Ghosh, Sankar -- Sher, Alan -- 1R01AI045806-01A1/AI/NIAID NIH HHS/ -- AI05093/AI/NIAID NIH HHS/ -- R01-AI59440/AI/NIAID NIH HHS/ -- R01-GM38765/GM/NIGMS NIH HHS/ -- Intramural NIH HHS/ -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2005 Jun 10;308(5728):1626-9. Epub 2005 Apr 28.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Immunobiology Section, Laboratory of Parasitic Diseases; National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA. fyarovinsky@niaid.nih.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15860593" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing ; Amino Acid Motifs ; Amino Acid Sequence ; Animals ; Antigens, Differentiation/genetics/metabolism ; Contractile Proteins/chemistry/*immunology/isolation & purification/metabolism ; Dendritic Cells/*immunology ; Genes, Protozoan ; Immunity, Innate ; Interleukin-12/biosynthesis/blood ; Ligands ; Membrane Glycoproteins/metabolism ; Mice ; Mice, Inbred C57BL ; Microfilament Proteins/chemistry/*immunology/isolation & purification/metabolism ; Molecular Sequence Data ; Myeloid Differentiation Factor 88 ; NF-kappa B/metabolism ; Profilins ; Protozoan Proteins/chemistry/*immunology/isolation & purification/metabolism ; Receptors, Cell Surface/*metabolism ; Receptors, Immunologic/genetics/metabolism ; Recombinant Proteins/immunology ; Signal Transduction ; Toll-Like Receptors ; Toxoplasma/genetics/*immunology ; Toxoplasmosis, Animal/*immunology ; Transfection
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    A toll-like receptor that prevents infection by uropathogenic bacteria (2004)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2004-03-06
    Description: Toll-like receptors (TLRs) recognize molecular patterns displayed by microorganisms, and their subsequent activation leads to the transcription of appropriate host-defense genes. Here we report the cloning and characterization of a member of the mammalian TLR family, TLR11, that displays a distinct pattern of expression in macrophages and liver, kidney, and bladder epithelial cells. Cells expressing TLR11 fail to respond to known TLR ligands but instead respond specifically to uropathogenic bacteria. Mice lacking TLR11 are highly susceptible to infection of the kidneys by uropathogenic bacteria, indicating a potentially important role for TLR11 in preventing infection of internal organs of the urogenital system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhang, Dekai -- Zhang, Guolong -- Hayden, Matthew S -- Greenblatt, Matthew B -- Bussey, Crystal -- Flavell, Richard A -- Ghosh, Sankar -- GM07205/GM/NIGMS NIH HHS/ -- R01-AI59440/AI/NIAID NIH HHS/ -- R37-AI33443/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2004 Mar 5;303(5663):1522-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section of Immunobiology and Department of Molecular Biophysics and Biochemistry, Howard Hughes Medical Institute, Yale University School of Medicine, New Haven, CT 06520, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15001781" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cell Line ; Cloning, Molecular ; Codon, Terminator ; Colony Count, Microbial ; Disease Susceptibility ; Epithelial Cells/metabolism ; Escherichia coli/growth & development/immunology/*pathogenicity ; Escherichia coli Infections/*immunology/microbiology ; Gene Expression Profiling ; Humans ; Immunity, Innate ; Kidney/immunology/*metabolism/microbiology ; Ligands ; Liver/metabolism ; Macrophages/metabolism ; Mice ; Mice, Knockout ; Molecular Sequence Data ; NF-kappa B/metabolism ; Polymorphism, Genetic ; Receptors, Cell Surface/chemistry/genetics/*metabolism ; Recombinant Fusion Proteins/metabolism ; Signal Transduction ; Toll-Like Receptors ; Transfection ; Tumor Necrosis Factor-alpha/metabolism ; Urinary Bladder/immunology/*metabolism/microbiology ; Urinary Tract Infections/*immunology/microbiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
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