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  • 1
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    Defective CD8 T cell memory following acute infection without CD4 T cell help (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-04-12
    Description: The CD8+ cytotoxic T cell response to pathogens is thought to be CD4+ helper T cell independent because infectious agents provide their own inflammatory signals. Mice that lack CD4+ T cells mount a primary CD8 response to Listeria monocytogenes equal to that of wild-type mice and rapidly clear the infection. However, protective memory to a challenge is gradually lost in the former animals. Memory CD8+ T cells from normal mice can respond rapidly, but memory CD8+ T cells that are generated without CD4 help are defective in their ability to respond to secondary encounters with antigen. The results highlight a previously undescribed role for CD4 help in promoting protective CD8 memory development.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2778341/" 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/PMC2778341/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sun, Joseph C -- Bevan, Michael J -- AI 19335/AI/NIAID NIH HHS/ -- R01 AI019335/AI/NIAID NIH HHS/ -- R01 AI019335-19/AI/NIAID NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2003 Apr 11;300(5617):339-42.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immunology and the Howard Hughes Medical Institute, University of Washington, Seattle, WA 98195, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12690202" target="_blank"〉PubMed〈/a〉
    Keywords: Adoptive Transfer ; Animals ; CD8-Positive T-Lymphocytes/*immunology/transplantation ; Cytotoxicity, Immunologic ; Genes, MHC Class II ; Immunization ; *Immunologic Memory ; Interferon-gamma/biosynthesis ; Listeria monocytogenes/genetics/immunology ; Listeriosis/*immunology ; Mice ; Mice, Inbred C57BL ; Ovalbumin/biosynthesis/genetics/immunology ; T-Lymphocyte Subsets/immunology ; T-Lymphocytes, Helper-Inducer/*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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    Genetic definition and sequence analysis of Arabidopsis centromeres (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-01-05
    Description: High-precision genetic mapping was used to define the regions that contain centromere functions on each natural chromosome in Arabidopsis thaliana. These regions exhibited dramatic recombinational repression and contained complex DNA surrounding large arrays of 180-base pair repeats. Unexpectedly, the DNA within the centromeres was not merely structural but also encoded several expressed genes. The regions flanking the centromeres were densely populated by repetitive elements yet experienced normal levels of recombination. The genetically defined centromeres were well conserved among Arabidopsis ecotypes but displayed limited sequence homology between different chromosomes, excluding repetitive DNA. This investigation provides a platform for dissecting the role of individual sequences in centromeres in higher eukaryotes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Copenhaver, G P -- Nickel, K -- Kuromori, T -- Benito, M I -- Kaul, S -- Lin, X -- Bevan, M -- Murphy, G -- Harris, B -- Parnell, L D -- McCombie, W R -- Martienssen, R A -- Marra, M -- Preuss, D -- New York, N.Y. -- Science. 1999 Dec 24;286(5449):2468-74.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉University of Chicago, Department of Molecular Genetics and Cell Biology, 1103 East 57 Street, Chicago, IL 60637, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10617454" target="_blank"〉PubMed〈/a〉
    Keywords: Arabidopsis/chemistry/*genetics ; Base Composition ; Base Sequence ; Centromere/*genetics/physiology ; Conserved Sequence ; Contig Mapping ; Crosses, Genetic ; Crossing Over, Genetic ; DNA, Plant/chemistry/*genetics ; Gene Expression ; *Genes, Plant ; Meiosis ; Models, Genetic ; *Recombination, Genetic ; *Repetitive Sequences, Nucleic Acid ; Retroelements ; Sequence Analysis, DNA
    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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    A heat-sensitive TRP channel expressed in keratinocytes (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-05-23
    Description: Mechanical and thermal cues stimulate a specialized group of sensory neurons that terminate in the skin. Three members of the transient receptor potential (TRP) family of channels are expressed in subsets of these neurons and are activated at distinct physiological temperatures. Here, we describe the cloning and characterization of a novel thermosensitive TRP channel. TRPV3 has a unique threshold: It is activated at innocuous (warm) temperatures and shows an increased response at noxious temperatures. TRPV3 is specifically expressed in keratinocytes; hence, skin cells are capable of detecting heat via molecules similar to those in heat-sensing neurons.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Peier, Andrea M -- Reeve, Alison J -- Andersson, David A -- Moqrich, Aziz -- Earley, Taryn J -- Hergarden, Anne C -- Story, Gina M -- Colley, Sian -- Hogenesch, John B -- McIntyre, Peter -- Bevan, Stuart -- Patapoutian, Ardem -- New York, N.Y. -- Science. 2002 Jun 14;296(5575):2046-9. Epub 2002 May 16.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Genomics Institute of the Novartis Research Foundation, San Diego, CA 92121, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12016205" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Animals, Newborn ; Blotting, Northern ; CHO Cells ; Capsaicin/*analogs & derivatives/pharmacology ; *Cation Transport Proteins ; Cell Line ; Cells, Cultured ; Cloning, Molecular ; Cricetinae ; Epidermis/cytology/innervation/metabolism ; Ganglia, Spinal/metabolism ; *Hot Temperature ; Humans ; In Situ Hybridization ; Ion Channels/chemistry/genetics/*metabolism ; Keratinocytes/*metabolism ; Membrane Potentials ; Mice ; Molecular Sequence Data ; Nerve Endings/physiology ; Neurons/physiology ; Patch-Clamp Techniques ; RNA, Messenger/genetics/metabolism ; Ruthenium Red/pharmacology ; Signal Transduction ; Spinal Cord/metabolism ; TRPV Cation Channels ; Temperature
    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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