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  • Animals  (2)
  • American Association for the Advancement of Science (AAAS)  (2)
  • 1
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    Innate immune activation through Nalp3 inflammasome sensing of asbestos and silica (2008)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2008-04-12
    Description: The inhalation of airborne pollutants, such as asbestos or silica, is linked to inflammation of the lung, fibrosis, and lung cancer. How the presence of pathogenic dust is recognized and how chronic inflammatory diseases are triggered are poorly understood. Here, we show that asbestos and silica are sensed by the Nalp3 inflammasome, whose subsequent activation leads to interleukin-1beta secretion. Inflammasome activation is triggered by reactive oxygen species, which are generated by a NADPH oxidase upon particle phagocytosis. (NADPH is the reduced form of nicotinamide adenine dinucleotide phosphate.) In a model of asbestos inhalation, Nalp3-/- mice showed diminished recruitment of inflammatory cells to the lungs, paralleled by lower cytokine production. Our findings implicate the Nalp3 inflammasome in particulate matter-related pulmonary diseases and support its role as a major proinflammatory "danger" receptor.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2396588/" 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/PMC2396588/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dostert, Catherine -- Petrilli, Virginie -- Van Bruggen, Robin -- Steele, Chad -- Mossman, Brooke T -- Tschopp, Jurg -- P01 CA114047/CA/NCI NIH HHS/ -- P01 CA114047-01A10002/CA/NCI NIH HHS/ -- P01HL67004/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2008 May 2;320(5876):674-7. doi: 10.1126/science.1156995. Epub 2008 Apr 10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, University of Lausanne, Chemin des Boveresses 155, 1066 Epalinges, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18403674" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Asbestos/*immunology ; Carrier Proteins/*physiology ; Humans ; Immunity ; Inflammation/*immunology ; Inflammation Mediators/*physiology ; Interleukin-1beta/secretion ; Macrophages/immunology/secretion ; Mice ; Silicon Dioxide/*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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  • 2
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    An antigenic peptide produced by peptide splicing in the proteasome (2004)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2004-03-06
    Description: CD8 T lymphocytes recognize peptides of 8 to 10 amino acids presented by class I molecules of the major histocompatibility complex. Here, CD8 T lymphocytes were found to recognize a nonameric peptide on melanoma cells that comprises two noncontiguous segments of melanocytic glycoprotein gp100(PMEL17). The production of this peptide involves the excision of four amino acids and splicing of the fragments. This process was reproduced in vitro by incubating a precursor peptide of 13 amino acids with highly purified proteasomes. Splicing appears to occur by transpeptidation involving an acyl-enzyme intermediate. Our results reveal an unanticipated aspect of the proteasome function of producing antigenic peptides.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vigneron, Nathalie -- Stroobant, Vincent -- Chapiro, Jacques -- Ooms, Annie -- Degiovanni, Gerard -- Morel, Sandra -- van der Bruggen, Pierre -- Boon, Thierry -- Van den Eynde, Benoit J -- New York, N.Y. -- Science. 2004 Apr 23;304(5670):587-90. Epub 2004 Mar 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Ludwig Institute for Cancer Research and Cellular Genetics Unit, Universite de Louvain, B-1200 Brussels, Belgium.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15001714" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Antigen Presentation ; COS Cells ; Cell Line, Tumor ; Cysteine Endopeptidases/*metabolism ; Electroporation ; HLA-A Antigens/immunology ; Humans ; Interferon-gamma/biosynthesis ; Melanoma ; Membrane Glycoproteins/chemistry/*immunology/metabolism ; Models, Chemical ; Multienzyme Complexes/*metabolism ; Neoplasm Proteins/chemistry/*immunology/metabolism ; Peptide Fragments/*immunology/metabolism ; Proteasome Endopeptidase Complex ; Protein Precursors/metabolism ; *Protein Splicing ; T-Lymphocytes, Cytotoxic/chemistry/*immunology ; Transfection ; gp100 Melanoma Antigen
    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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