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  • 1
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    A family of IFN-gamma-inducible 65-kD GTPases protects against bacterial infection (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-05-10
    Description: Immune interferon gamma (IFN-gamma) is essential for mammalian host defense against intracellular pathogens. IFN-gamma induces nearly 2000 host genes, yet few have any assigned function. Here, we examined a complete mouse 65-kilodalton (kD) guanylate-binding protein (Gbp) gene family as part of a 43-member IFN-gamma-inducible guanosine triphosphatase (GTPase) superfamily in mouse and human genomes. Family-wide loss-of-function analysis found that at least four Gbps--Gbp1, Gbp6, Gbp7, and Gbp10--conferred cell-autonomous immunity to listerial or mycobacterial infection within macrophages and gene-deficient animals. These Gbps solicited host defense proteins, including the phagocyte oxidase, antimicrobial peptides, and autophagy effectors, to kill intracellular bacteria. Thus, specific 65-kD Gbps coordinate a potent oxidative and vesicular trafficking program to protect the host from infection.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kim, Bae-Hoon -- Shenoy, Avinash R -- Kumar, Pradeep -- Das, Rituparna -- Tiwari, Sangeeta -- MacMicking, John D -- R01 AI068041-01A1/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2011 May 6;332(6030):717-21. doi: 10.1126/science.1201711.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section of Microbial Pathogenesis, Boyer Centre for Molecular Medicine, Yale University School of Medicine, New Haven, CT 06510, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21551061" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Autophagy ; Cell Line ; GTP-Binding Proteins/chemistry/genetics/*metabolism ; Humans ; Immunity, Innate ; Interferon-gamma/*immunology ; Listeria monocytogenes/growth & development/immunology/pathogenicity ; Listeriosis/*immunology/metabolism/microbiology ; Lysosomes/metabolism ; Macrophages/*immunology/metabolism/*microbiology ; Mice ; Mycobacterium bovis/growth & development/immunology/pathogenicity ; NADPH Oxidase/metabolism ; Oxidation-Reduction ; Peptides/metabolism ; Phagocytosis ; Phagosomes/metabolism ; RNA Interference ; Tuberculosis/*immunology/metabolism/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)
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  • 2
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    Immune control of tuberculosis by IFN-gamma-inducible LRG-47 (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-10-25
    Description: Interferon-gamma (IFN-gamma) provides an essential component of immunity to tuberculosis by activating infected host macrophages to directly inhibit the replication of Mycobacterium tuberculosis (Mtb). IFN-gamma-inducible nitric oxide synthase 2 (NOS2) is considered a principal effector mechanism, although other pathways may also exist. Here, we identify one member of a newly emerging 47-kilodalton (p47) guanosine triphosphatase family, LRG-47, that acts independently of NOS2 to protect against disease. Mice lacking LRG-47 failed to control Mtb replication, unlike those missing the related p47 guanosine triphosphatases IRG-47 or IGTP. Defective bacterial killing in IFN-gamma-activated LRG-47-/- macrophages was associated with impaired maturation of Mtb-containing phagosomes, vesicles that otherwise recruited LRG-47 in wild-type cells. Thus, LRG-47 may serve as a critical vacuolar trafficking component used to dispose of intracellular pathogens like Mtb.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉MacMicking, John D -- Taylor, Gregory A -- McKinney, John D -- R01 A1051702/PHS HHS/ -- New York, N.Y. -- Science. 2003 Oct 24;302(5645):654-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Infection Biology, Rockefeller University, 1230 York Avenue, New York, NY 10021, USA. macmicj@mail.rockefeller.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14576437" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cells, Cultured ; Computational Biology ; Disease Susceptibility ; Female ; GTP Phosphohydrolases/genetics/physiology ; GTP-Binding Proteins/genetics/*physiology ; Hydrogen-Ion Concentration ; Immunity, Innate ; Interferon-gamma/*immunology ; Macrophage Activation ; Macrophages/immunology/metabolism ; Macrophages, Alveolar/immunology/metabolism ; Male ; Mice ; Mice, Inbred C57BL ; Mutation ; Mycobacterium tuberculosis/*growth & development ; Nitric Oxide Synthase/genetics/metabolism ; Nitric Oxide Synthase Type II ; Oligonucleotide Array Sequence Analysis ; Phagosomes/microbiology/physiology ; Reverse Transcriptase Polymerase Chain Reaction ; Signal Transduction ; Tuberculosis/*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)
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  • 3
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    Inhibition of viral replication by interferon-gamma-induced nitric oxide synthase (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-09-10
    Description: Interferons (IFNs) induce antiviral activity in many cell types. The ability of IFN-gamma to inhibit replication of ectromelia, vaccinia, and herpes simplex-1 viruses in mouse macrophages correlated with the cells' production of nitric oxide (NO). Viral replication was restored in IFN-gamma-treated macrophages exposed to inhibitors of NO synthase. Conversely, epithelial cells with no detectable NO synthesis restricted viral replication when transfected with a complementary DNA encoding inducible NO synthase or treated with organic compounds that generate NO. In mice, an inhibitor of NO synthase converted resolving ectromelia virus infection into fulminant mousepox. Thus, induction of NO synthase can be necessary and sufficient for a substantial antiviral effect of IFN-gamma.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Karupiah, G -- Xie, Q W -- Buller, R M -- Nathan, C -- Duarte, C -- MacMicking, J D -- CA43610/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1993 Sep 10;261(5127):1445-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7690156" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Oxidoreductases/*biosynthesis/metabolism ; Animals ; Arginine/analogs & derivatives/pharmacology ; Cell Line ; Cells, Cultured ; Ectromelia virus/drug effects/*physiology ; Ectromelia, Infectious/microbiology ; Enzyme Induction ; Female ; Humans ; Interferon-gamma/*pharmacology ; Macrophages/*microbiology ; Mice ; Mice, Inbred C57BL ; Nitric Oxide/metabolism/pharmacology ; Nitric Oxide Synthase ; Simplexvirus/drug effects/physiology ; Transfection ; Vaccinia virus/drug effects/physiology ; *Virus Replication/drug effects ; omega-N-Methylarginine
    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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  • 4
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    GBP5 promotes NLRP3 inflammasome assembly and immunity in mammals (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-03-31
    Description: Inflammasomes are sensory complexes that alert the immune system to the presence of infection or tissue damage. These complexes assemble NLR (nucleotide binding and oligomerization, leucine-rich repeat) or ALR (absent in melanoma 2-like receptor) proteins to activate caspase-1 cleavage and interleukin (IL)-1beta/IL-18 secretion. Here, we identified a non-NLR/ALR human protein that stimulates inflammasome assembly: guanylate binding protein 5 (GBP5). GBP5 promoted selective NLRP3 inflammasome responses to pathogenic bacteria and soluble but not crystalline inflammasome priming agents. Generation of Gbp5(-/-) mice revealed pronounced caspase-1 and IL-1beta/IL-18 cleavage defects in vitro and impaired host defense and Nlrp3-dependent inflammatory responses in vivo. Thus, GBP5 serves as a unique rheostat for NLRP3 inflammasome activation and extends our understanding of the inflammasome complex beyond its core machinery.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shenoy, Avinash R -- Wellington, David A -- Kumar, Pradeep -- Kassa, Hilina -- Booth, Carmen J -- Cresswell, Peter -- MacMicking, John D -- R01 AI068041-06/AI/NIAID NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2012 Apr 27;336(6080):481-5. doi: 10.1126/science.1217141. Epub 2012 Mar 29.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Boyer Center for Molecular Medicine, Yale University School of Medicine, New Haven, CT 06510, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22461501" target="_blank"〉PubMed〈/a〉
    Keywords: Alum Compounds ; Animals ; Apoptosis Regulatory Proteins ; Carrier Proteins/genetics/*metabolism ; Caspase 1/metabolism ; Cell Line ; Cytoskeletal Proteins/metabolism ; GTP-Binding Proteins/chemistry/genetics/*metabolism ; Humans ; Inflammasomes/*metabolism ; Interferon-gamma/immunology ; Interleukin-1beta/secretion ; Lipopolysaccharides/immunology ; Listeria monocytogenes ; Listeriosis/immunology ; Macrophages/immunology/*metabolism ; Mice ; Protein Multimerization ; RNA Interference ; Salmonella typhimurium/immunology ; Uric Acid
    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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  • 5
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    Cellular self-defense: how cell-autonomous immunity protects against pathogens (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-05-11
    Description: Our prevailing view of vertebrate host defense is strongly shaped by the notion of a specialized set of immune cells as sole guardians of antimicrobial resistance. Yet this view greatly underestimates a capacity for most cell lineages-the majority of which fall outside the traditional province of the immune system-to defend themselves against infection. This ancient and ubiquitous form of host protection is termed cell-autonomous immunity and operates across all three domains of life. Here, we discuss the organizing principles that govern cellular self-defense and how intracellular compartmentalization has shaped its activities to provide effective protection against a wide variety of microbial pathogens.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3863583/" 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/PMC3863583/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Randow, Felix -- MacMicking, John D -- James, Leo C -- 281627/European Research Council/International -- AI068041-06/AI/NIAID NIH HHS/ -- MC_U105170648/Medical Research Council/United Kingdom -- MC_U105181010/Medical Research Council/United Kingdom -- R01 AI068041/AI/NIAID NIH HHS/ -- U105170648/Medical Research Council/United Kingdom -- U105181010/Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2013 May 10;340(6133):701-6. doi: 10.1126/science.1233028.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Research Council Laboratory of Molecular Biology, Division of Protein and Nucleic Acid Chemistry, Cambridge, UK. randow@mrc-lmb.cam.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23661752" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Lineage ; Host-Pathogen Interactions/*immunology ; Humans ; *Immunity, Cellular ; Infection/*immunology/*microbiology/virology ; Ribonucleoproteins/immunology ; Toxoplasma/immunology
    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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  • 6
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    Identification of nitric oxide synthase as a protective locus against tuberculosis (1997)
    National Academy of Sciences
    Details
    Publication Date: 1997-05-13
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
    Published by National Academy of Sciences
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  • 7
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    Macrophage migration inhibitory factor (MIF) is a critical mediator of the innate immune response to Mycobacterium tuberculosis (2013)
    National Academy of Sciences
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    Publication Date: 2013-07-23
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
    Published by National Academy of Sciences
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  • 8
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    Cellular Self-Defense: How Cell-Autonomous Immunity Protects Against Pathogens (2013)
    American Association for the Advancement of Science
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    Publication Date: 2013-05-09
    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
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