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  • 1
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    Constitutive activation of toll-mediated antifungal defense in serpin-deficient Drosophila (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-09-18
    Description: The antifungal defense of Drosophila is controlled by the spaetzle/Toll/cactus gene cassette. Here, a loss-of-function mutation in the gene encoding a blood serine protease inhibitor, Spn43Ac, was shown to lead to constitutive expression of the antifungal peptide drosomycin, and this effect was mediated by the spaetzle and Toll gene products. Spaetzle was cleaved by proteolytic enzymes to its active ligand form shortly after immune challenge, and cleaved Spaetzle was constitutively present in Spn43Ac-deficient flies. Hence, Spn43Ac negatively regulates the Toll signaling pathway, and Toll does not function as a pattern recognition receptor in the Drosophila host defense.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Levashina, E A -- Langley, E -- Green, C -- Gubb, D -- Ashburner, M -- Hoffmann, J A -- Reichhart, J M -- New York, N.Y. -- Science. 1999 Sep 17;285(5435):1917-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉UPR 9022 CNRS, Institut de Biologie Moleculaire et Cellulaire, 15 Rue Rene Descartes, Strasbourg 67084, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10489372" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antifungal Agents/*metabolism ; *Antimicrobial Cationic Peptides ; Body Patterning ; Drosophila/embryology/genetics/*immunology ; *Drosophila Proteins ; Escherichia coli/genetics/immunology ; Genes, Insect ; Hemolymph/metabolism ; Insect Proteins/*biosynthesis/genetics/metabolism/*physiology ; Membrane Glycoproteins/genetics/*physiology ; Micrococcus luteus/immunology ; Molecular Sequence Data ; Mutagenesis ; Peptides/genetics/metabolism ; *Receptors, Cell Surface ; Recombinant Fusion Proteins/genetics/metabolism ; Serine Proteinase Inhibitors/genetics/*metabolism ; Serpins/genetics/*metabolism ; Signal Transduction ; Toll-Like Receptors ; Up-Regulation
    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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    Evolutionary dynamics of immune-related genes and pathways in disease-vector mosquitoes (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-06-26
    Description: Mosquitoes are vectors of parasitic and viral diseases of immense importance for public health. The acquisition of the genome sequence of the yellow fever and Dengue vector, Aedes aegypti (Aa), has enabled a comparative phylogenomic analysis of the insect immune repertoire: in Aa, the malaria vector Anopheles gambiae (Ag), and the fruit fly Drosophila melanogaster (Dm). Analysis of immune signaling pathways and response modules reveals both conservative and rapidly evolving features associated with different functional gene categories and particular aspects of immune reactions. These dynamics reflect in part continuous readjustment between accommodation and rejection of pathogens and suggest how innate immunity may have evolved.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2042107/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2042107/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Waterhouse, Robert M -- Kriventseva, Evgenia V -- Meister, Stephan -- Xi, Zhiyong -- Alvarez, Kanwal S -- Bartholomay, Lyric C -- Barillas-Mury, Carolina -- Bian, Guowu -- Blandin, Stephanie -- Christensen, Bruce M -- Dong, Yuemei -- Jiang, Haobo -- Kanost, Michael R -- Koutsos, Anastasios C -- Levashina, Elena A -- Li, Jianyong -- Ligoxygakis, Petros -- Maccallum, Robert M -- Mayhew, George F -- Mendes, Antonio -- Michel, Kristin -- Osta, Mike A -- Paskewitz, Susan -- Shin, Sang Woon -- Vlachou, Dina -- Wang, Lihui -- Wei, Weiqi -- Zheng, Liangbiao -- Zou, Zhen -- Severson, David W -- Raikhel, Alexander S -- Kafatos, Fotis C -- Dimopoulos, George -- Zdobnov, Evgeny M -- Christophides, George K -- 1 R01 AI059492-01A1/AI/NIAID NIH HHS/ -- 5 R01 AI61576-2/AI/NIAID NIH HHS/ -- G0300170/Medical Research Council/United Kingdom -- GM41247/GM/NIGMS NIH HHS/ -- GR077229MA/Wellcome Trust/United Kingdom -- P01 AI044220-06A1/AI/NIAID NIH HHS/ -- R01 AI037083/AI/NIAID NIH HHS/ -- R01 GM058634/GM/NIGMS NIH HHS/ -- R01 GM058634-09/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2007 Jun 22;316(5832):1738-43.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Cell and Molecular Biology, Faculty of Natural Sciences, Imperial College London, London SW7 2AZ, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17588928" target="_blank"〉PubMed〈/a〉
    Keywords: Aedes/*genetics/immunology ; Animals ; Anopheles/*genetics/immunology ; Antimicrobial Cationic Peptides/physiology ; Carrier Proteins/genetics/physiology ; Drosophila melanogaster/genetics/immunology ; *Evolution, Molecular ; Genes, Insect ; Immunity, Innate/*genetics ; Insect Proteins/genetics/physiology ; Insect Vectors/*genetics/immunology ; Malaria/transmission ; Melanins/metabolism ; Multigene Family ; Signal Transduction ; Species Specificity
    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
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    PAPER CURRENT
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