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  • Cells, Cultured  (5)
  • American Association for the Advancement of Science (AAAS)  (5)
  • International Union of Crystallography (IUC)
Collection
Keywords
Publisher
  • American Association for the Advancement of Science (AAAS)  (5)
  • International Union of Crystallography (IUC)
Years
  • 1
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    The nature of the principal type 1 interferon-producing cells in human blood (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-06-12
    Description: Interferons (IFNs) are the most important cytokines in antiviral immune responses. "Natural IFN-producing cells" (IPCs) in human blood express CD4 and major histocompatibility complex class II proteins, but have not been isolated and further characterized because of their rarity, rapid apoptosis, and lack of lineage markers. Purified IPCs are here shown to be the CD4(+)CD11c- type 2 dendritic cell precursors (pDC2s), which produce 200 to 1000 times more IFN than other blood cells after microbial challenge. pDC2s are thus an effector cell type of the immune system, critical for antiviral and antitumor immune responses.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Siegal, F P -- Kadowaki, N -- Shodell, M -- Fitzgerald-Bocarsly, P A -- Shah, K -- Ho, S -- Antonenko, S -- Liu, Y J -- New York, N.Y. -- Science. 1999 Jun 11;284(5421):1835-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Saint Vincents Hospital and Medical Center, New York, NY 10011, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10364556" target="_blank"〉PubMed〈/a〉
    Keywords: CD40 Ligand ; Cell Lineage ; Cell Separation ; Cells, Cultured ; Dendritic Cells/cytology/*immunology/ultrastructure ; Humans ; Interferon Type I/*biosynthesis ; Interferon-alpha/*biosynthesis/genetics ; Interferon-beta/biosynthesis/genetics ; Interleukin-3/pharmacology ; Leukocytes, Mononuclear/immunology ; Membrane Glycoproteins/pharmacology ; Organelles/ultrastructure ; RNA, Messenger/genetics/metabolism ; Simplexvirus/immunology ; Stem Cells/cytology/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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    Reciprocal control of T helper cell and dendritic cell differentiation (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-02-19
    Description: It is not known whether subsets of dendritic cells provide different cytokine microenvironments that determine the differentiation of either type-1 T helper (TH1) or TH2 cells. Human monocyte (pDC1)-derived dendritic cells (DC1) were found to induce TH1 differentiation, whereas dendritic cells (DC2) derived from CD4+CD3-CD11c- plasmacytoid cells (pDC2) induced TH2 differentiation by use of a mechanism unaffected by interleukin-4 (IL-4) or IL-12. The TH2 cytokine IL-4 enhanced DC1 maturation and killed pDC2, an effect potentiated by IL-10 but blocked by CD40 ligand and interferon-gamma. Thus, a negative feedback loop from the mature T helper cells may selectively inhibit prolonged TH1 or TH2 responses by regulating survival of the appropriate dendritic cell subset.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rissoan, M C -- Soumelis, V -- Kadowaki, N -- Grouard, G -- Briere, F -- de Waal Malefyt, R -- Liu, Y J -- New York, N.Y. -- Science. 1999 Feb 19;283(5405):1183-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Schering-Plough, Laboratory for Immunological Research, 27 chemin des Peupliers, Boite Postale 11, 69571, Dardilly, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10024247" target="_blank"〉PubMed〈/a〉
    Keywords: Antigens, CD40 ; Apoptosis ; CD40 Ligand ; Cell Differentiation ; Cell Lineage ; Cell Survival ; Cells, Cultured ; Coculture Techniques ; Dendritic Cells/*cytology/immunology ; Feedback ; Humans ; Interferon-gamma/biosynthesis/pharmacology ; Interleukin-12/biosynthesis/pharmacology/physiology ; Interleukin-4/biosynthesis/pharmacology/*physiology ; Interleukins/biosynthesis/pharmacology ; Lymphocyte Activation ; Membrane Glycoproteins/pharmacology ; Stem Cells/cytology ; Th1 Cells/*cytology/immunology ; Th2 Cells/*cytology/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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  • 3
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    Toxicity of ALS-linked SOD1 mutants (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-05-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Williamson, T L -- Corson, L B -- Huang, L -- Burlingame, A -- Liu, J -- Bruijn, L I -- Cleveland, D W -- New York, N.Y. -- Science. 2000 Apr 21;288(5465):399.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Ludwig Institute for Cancer Research, University of California at San Diego, La Jolla, CA 92093, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10798964" target="_blank"〉PubMed〈/a〉
    Keywords: Amyotrophic Lateral Sclerosis/*enzymology/genetics/pathology ; Animals ; Apoptosis ; Cells, Cultured ; Copper/metabolism ; Humans ; Mice ; Motor Neurons/metabolism/*pathology ; Mutation ; Neurofilament Proteins/metabolism ; Nitrates/metabolism ; Superoxide Dismutase/*genetics/*metabolism ; Yeasts/cytology/metabolism ; Zinc/*metabolism/toxicity
    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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    Argonaute2 is the catalytic engine of mammalian RNAi (2004)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2004-07-31
    Description: Gene silencing through RNA interference (RNAi) is carried out by RISC, the RNA-induced silencing complex. RISC contains two signature components, small interfering RNAs (siRNAs) and Argonaute family proteins. Here, we show that the multiple Argonaute proteins present in mammals are both biologically and biochemically distinct, with a single mammalian family member, Argonaute2, being responsible for messenger RNA cleavage activity. This protein is essential for mouse development, and cells lacking Argonaute2 are unable to mount an experimental response to siRNAs. Mutations within a cryptic ribonuclease H domain within Argonaute2, as identified by comparison with the structure of an archeal Argonaute protein, inactivate RISC. Thus, our evidence supports a model in which Argonaute contributes "Slicer" activity to RISC, providing the catalytic engine for RNAi.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, Jidong -- Carmell, Michelle A -- Rivas, Fabiola V -- Marsden, Carolyn G -- Thomson, J Michael -- Song, Ji-Joon -- Hammond, Scott M -- Joshua-Tor, Leemor -- Hannon, Gregory J -- New York, N.Y. -- Science. 2004 Sep 3;305(5689):1437-41. Epub 2004 Jul 29.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cold Spring Harbor Laboratory, Watson School of Biological Sciences, 1 Bungtown Road, Cold Spring Harbor, NY 11724, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15284456" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Argonaute Proteins ; Catalysis ; Cell Line ; Cells, Cultured ; Central Nervous System/embryology ; Embryonic and Fetal Development ; Eukaryotic Initiation Factor-2 ; Gene Expression Profiling ; Gene Expression Regulation, Developmental ; Humans ; In Situ Hybridization ; Mice ; MicroRNAs/metabolism ; Molecular Sequence Data ; Mutagenesis, Insertional ; Oligonucleotide Array Sequence Analysis ; Peptide Initiation Factors/chemistry/*metabolism ; Point Mutation ; *RNA Interference ; RNA, Double-Stranded ; RNA, Messenger/*metabolism ; RNA, Small Interfering/metabolism ; RNA-Induced Silencing Complex/chemistry/*metabolism
    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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    Generation of memory B cells and plasma cells in vitro (1995)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1995-05-05
    Description: After germinal center B cells undergo somatic mutation and antigen selection, they become either memory B cells or plasma cells, but the signal requirements that control entry into either pathway have been unclear. When purified human germinal center cells were cultured with interleukin-2, interleukin-10, and cells expressing CD40 ligand, cells with characteristics of memory B cells were generated. Removal of CD40 ligand from the system resulted in terminal differentiation of germinal center B cells into cells with the characteristics of plasma cells. These results indicate that CD40 ligand directs the differentiation of germinal center B cells toward memory B cells rather than toward plasma cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Arpin, C -- Dechanet, J -- Van Kooten, C -- Merville, P -- Grouard, G -- Briere, F -- Banchereau, J -- Liu, Y J -- New York, N.Y. -- Science. 1995 May 5;268(5211):720-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Schering-Plough, Laboratory for Immunological Research, Dardilly, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7537388" target="_blank"〉PubMed〈/a〉
    Keywords: ADP-ribosyl Cyclase ; Antigens, CD/analysis ; Antigens, CD20 ; Antigens, CD38 ; Antigens, Differentiation/analysis ; Antigens, Differentiation, B-Lymphocyte/analysis ; B-Lymphocyte Subsets/*immunology ; CD40 Ligand ; Cell Differentiation/*immunology ; Cell Division/immunology ; Cells, Cultured ; Humans ; Immunoglobulin Isotypes/analysis ; Immunologic Memory/immunology ; Immunophenotyping ; Lymph Nodes/cytology ; Membrane Glycoproteins/immunology ; Plasma Cells/*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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