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  • 1
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    Protection against malaria by intravenous immunization with a nonreplicating sporozoite vaccine (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-08-10
    Description: Consistent, high-level, vaccine-induced protection against human malaria has only been achieved by inoculation of Plasmodium falciparum (Pf) sporozoites (SPZ) by mosquito bites. We report that the PfSPZ Vaccine--composed of attenuated, aseptic, purified, cryopreserved PfSPZ--was safe and well tolerated when administered four to six times intravenously (IV) to 40 adults. Zero of six subjects receiving five doses and three of nine subjects receiving four doses of 1.35 x 10(5) PfSPZ Vaccine and five of six nonvaccinated controls developed malaria after controlled human malaria infection (P = 0.015 in the five-dose group and P = 0.028 for overall, both versus controls). PfSPZ-specific antibody and T cell responses were dose-dependent. These data indicate that there is a dose-dependent immunological threshold for establishing high-level protection against malaria that can be achieved with IV administration of a vaccine that is safe and meets regulatory standards.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Seder, Robert A -- Chang, Lee-Jah -- Enama, Mary E -- Zephir, Kathryn L -- Sarwar, Uzma N -- Gordon, Ingelise J -- Holman, LaSonji A -- James, Eric R -- Billingsley, Peter F -- Gunasekera, Anusha -- Richman, Adam -- Chakravarty, Sumana -- Manoj, Anita -- Velmurugan, Soundarapandian -- Li, MingLin -- Ruben, Adam J -- Li, Tao -- Eappen, Abraham G -- Stafford, Richard E -- Plummer, Sarah H -- Hendel, Cynthia S -- Novik, Laura -- Costner, Pamela J M -- Mendoza, Floreliz H -- Saunders, Jamie G -- Nason, Martha C -- Richardson, Jason H -- Murphy, Jittawadee -- Davidson, Silas A -- Richie, Thomas L -- Sedegah, Martha -- Sutamihardja, Awalludin -- Fahle, Gary A -- Lyke, Kirsten E -- Laurens, Matthew B -- Roederer, Mario -- Tewari, Kavita -- Epstein, Judith E -- Sim, B Kim Lee -- Ledgerwood, Julie E -- Graham, Barney S -- Hoffman, Stephen L -- VRC 312 Study Team -- 3R44AI055229-06S1/AI/NIAID NIH HHS/ -- 4R44AI055229-08/AI/NIAID NIH HHS/ -- 5R44AI058499-05/AI/NIAID NIH HHS/ -- N01-AI-40096/AI/NIAID NIH HHS/ -- Intramural NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2013 Sep 20;341(6152):1359-65. doi: 10.1126/science.1241800. Epub 2013 Aug 8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20852, USA. rseder@mail.nih.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23929949" target="_blank"〉PubMed〈/a〉
    Keywords: Administration, Intravenous ; Adult ; Animals ; Cytokines/immunology ; Female ; Humans ; Immunity, Cellular ; Malaria Vaccines/*administration & dosage/adverse effects/*immunology ; Malaria, Falciparum/*prevention & control ; Male ; Mice ; Plasmodium falciparum/*immunology ; Sporozoites/immunology ; T-Lymphocytes/immunology ; Vaccination/adverse effects/methods
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
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    Targeting Bcr-Abl by combining allosteric with ATP-binding-site inhibitors (2010)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2010-01-15
    Description: In an effort to find new pharmacological modalities to overcome resistance to ATP-binding-site inhibitors of Bcr-Abl, we recently reported the discovery of GNF-2, a selective allosteric Bcr-Abl inhibitor. Here, using solution NMR, X-ray crystallography, mutagenesis and hydrogen exchange mass spectrometry, we show that GNF-2 binds to the myristate-binding site of Abl, leading to changes in the structural dynamics of the ATP-binding site. GNF-5, an analogue of GNF-2 with improved pharmacokinetic properties, when used in combination with the ATP-competitive inhibitors imatinib or nilotinib, suppressed the emergence of resistance mutations in vitro, displayed additive inhibitory activity in biochemical and cellular assays against T315I mutant human Bcr-Abl and displayed in vivo efficacy against this recalcitrant mutant in a murine bone-marrow transplantation model. These results show that therapeutically relevant inhibition of Bcr-Abl activity can be achieved with inhibitors that bind to the myristate-binding site and that combining allosteric and ATP-competitive inhibitors can overcome resistance to either agent alone.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2901986/" 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/PMC2901986/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhang, Jianming -- Adrian, Francisco J -- Jahnke, Wolfgang -- Cowan-Jacob, Sandra W -- Li, Allen G -- Iacob, Roxana E -- Sim, Taebo -- Powers, John -- Dierks, Christine -- Sun, Fangxian -- Guo, Gui-Rong -- Ding, Qiang -- Okram, Barun -- Choi, Yongmun -- Wojciechowski, Amy -- Deng, Xianming -- Liu, Guoxun -- Fendrich, Gabriele -- Strauss, Andre -- Vajpai, Navratna -- Grzesiek, Stephan -- Tuntland, Tove -- Liu, Yi -- Bursulaya, Badry -- Azam, Mohammad -- Manley, Paul W -- Engen, John R -- Daley, George Q -- Warmuth, Markus -- Gray, Nathanael S -- R01 CA130876/CA/NCI NIH HHS/ -- R01 CA130876-03/CA/NCI NIH HHS/ -- England -- Nature. 2010 Jan 28;463(7280):501-6. doi: 10.1038/nature08675. Epub 2010 Jan 13.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Dana-Farber Cancer Institute, Harvard Medical School, Department of Cancer Biology, Seeley G. Mudd Building 628, Boston, Massachusetts 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20072125" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antineoplastic Agents/*chemistry/metabolism/*pharmacology ; Antineoplastic Combined Chemotherapy Protocols ; Benzamides ; Binding Sites ; Bone Marrow Transplantation ; Cell Line, Tumor ; Crystallization ; Disease Models, Animal ; Drug Resistance, Neoplasm/*drug effects ; Female ; Fusion Proteins, bcr-abl/*chemistry/genetics/metabolism ; Humans ; Imatinib Mesylate ; Inhibitory Concentration 50 ; Leukemia, Myelogenous, Chronic, BCR-ABL Positive/drug ; therapy/enzymology/*metabolism ; Male ; Mass Spectrometry ; Mice ; Models, Molecular ; Mutation/genetics ; Piperazines/chemistry/pharmacology ; Protein Structure, Tertiary ; Pyrimidines/chemistry/metabolism/pharmacology ; Transplantation, Heterologous
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 3
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    Metabolic syndrome and altered gut microbiota in mice lacking Toll-like receptor 5 (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-03-06
    Description: Metabolic syndrome is a group of obesity-related metabolic abnormalities that increase an individual's risk of developing type 2 diabetes and cardiovascular disease. Here, we show that mice genetically deficient in Toll-like receptor 5 (TLR5), a component of the innate immune system that is expressed in the gut mucosa and that helps defend against infection, exhibit hyperphagia and develop hallmark features of metabolic syndrome, including hyperlipidemia, hypertension, insulin resistance, and increased adiposity. These metabolic changes correlated with changes in the composition of the gut microbiota, and transfer of the gut microbiota from TLR5-deficient mice to wild-type germ-free mice conferred many features of metabolic syndrome to the recipients. Food restriction prevented obesity, but not insulin resistance, in the TLR5-deficient mice. These results support the emerging view that the gut microbiota contributes to metabolic disease and suggest that malfunction of the innate immune system may promote the development of metabolic syndrome.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4714868/" 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/PMC4714868/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vijay-Kumar, Matam -- Aitken, Jesse D -- Carvalho, Frederic A -- Cullender, Tyler C -- Mwangi, Simon -- Srinivasan, Shanthi -- Sitaraman, Shanthi V -- Knight, Rob -- Ley, Ruth E -- Gewirtz, Andrew T -- DK061417/DK/NIDDK NIH HHS/ -- DK06439/DK/NIDDK NIH HHS/ -- DK083275/DK/NIDDK NIH HHS/ -- K01 DK083275/DK/NIDDK NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2010 Apr 9;328(5975):228-31. doi: 10.1126/science.1179721. Epub 2010 Mar 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, Emory University, Atlanta, GA 30322, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20203013" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Bacterial Physiological Phenomena ; Blood Glucose/analysis ; Body Fat Distribution ; Body Weight ; Caloric Restriction ; Dietary Fats/administration & dosage ; Female ; Germ-Free Life ; Hyperphagia/etiology ; *Immunity, Innate ; Insulin Resistance ; Intestinal Mucosa/immunology ; Intestines/*microbiology ; Male ; Metabolic Syndrome X/*etiology/immunology/microbiology ; Mice ; Mice, Knockout ; Obesity/etiology/immunology/microbiology/prevention & control ; Toll-Like Receptor 5/deficiency/genetics/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    Germ cell migration across Sertoli cell tight junctions (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-09-22
    Description: The blood-testis barrier includes strands of tight junctions between somatic Sertoli cells that restricts solutes from crossing the paracellular space, creating a microenvironment within seminiferous tubules and providing immune privilege to meiotic and postmeiotic cells. Large cysts of germ cells transit the Sertoli cell tight junctions (SCTJs) without compromising their integrity. We used confocal microscopy to visualize SCTJ components during germ cell cyst migration across the SCTJs. Cysts become enclosed within a network of transient compartments fully bounded by old and new tight junctions. Dissolution of the old tight junctions releases the germ cells into the adluminal compartment, thus completing transit across the blood-testis barrier. Claudin 3, a tight junction protein, is transiently incorporated into new tight junctions and then replaced by claudin 11.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3694388/" 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/PMC3694388/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Smith, Benjamin E -- Braun, Robert E -- CA34196/CA/NCI NIH HHS/ -- HD12629/HD/NICHD NIH HHS/ -- P30 CA034196/CA/NCI NIH HHS/ -- U54 HD012629/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 2012 Nov 9;338(6108):798-802. doi: 10.1126/science.1219969. Epub 2012 Sep 20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genome Sciences, University of Washington School of Medicine, Seattle, WA 98195, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22997133" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blood-Testis Barrier/*ultrastructure ; *Cell Movement ; Claudin-3/analysis/metabolism ; Claudins/analysis/metabolism ; Male ; Mice ; Mice, Inbred C57BL ; Microscopy, Confocal ; Models, Biological ; Seminiferous Tubules/chemistry/ultrastructure ; Sertoli Cells/chemistry/physiology/*ultrastructure ; Spermatocytes/*physiology/ultrastructure ; Spermatogenesis ; Tight Junctions/chemistry/physiology/*ultrastructure
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
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    Caspase-11 protects against bacteria that escape the vacuole (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-01-26
    Description: Caspases are either apoptotic or inflammatory. Among inflammatory caspases, caspase-1 and -11 trigger pyroptosis, a form of programmed cell death. Whereas both can be detrimental in inflammatory disease, only caspase-1 has an established protective role during infection. Here, we report that caspase-11 is required for innate immunity to cytosolic, but not vacuolar, bacteria. Although Salmonella typhimurium and Legionella pneumophila normally reside in the vacuole, specific mutants (sifA and sdhA, respectively) aberrantly enter the cytosol. These mutants triggered caspase-11, which enhanced clearance of S. typhimurium sifA in vivo. This response did not require NLRP3, NLRC4, or ASC inflammasome pathways. Burkholderia species that naturally invade the cytosol also triggered caspase-11, which protected mice from lethal challenge with B. thailandensis and B. pseudomallei. Thus, caspase-11 is critical for surviving exposure to ubiquitous environmental pathogens.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3697099/" 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/PMC3697099/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Aachoui, Youssef -- Leaf, Irina A -- Hagar, Jon A -- Fontana, Mary F -- Campos, Cristine G -- Zak, Daniel E -- Tan, Michael H -- Cotter, Peggy A -- Vance, Russell E -- Aderem, Alan -- Miao, Edward A -- AI057141/AI/NIAID NIH HHS/ -- AI063302/AI/NIAID NIH HHS/ -- AI065359/AI/NIAID NIH HHS/ -- AI075039/AI/NIAID NIH HHS/ -- AI080749/AI/NIAID NIH HHS/ -- AI097518/AI/NIAID NIH HHS/ -- P01 AI063302/AI/NIAID NIH HHS/ -- P30 CA016086/CA/NCI NIH HHS/ -- R01 AI075039/AI/NIAID NIH HHS/ -- R01 AI080749/AI/NIAID NIH HHS/ -- R01 AI097518/AI/NIAID NIH HHS/ -- U19 AI100627/AI/NIAID NIH HHS/ -- U54 AI057141/AI/NIAID NIH HHS/ -- U54 AI065359/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2013 Feb 22;339(6122):975-8. doi: 10.1126/science.1230751. Epub 2013 Jan 24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23348507" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Burkholderia/pathogenicity/physiology ; Burkholderia Infections/enzymology/immunology/metabolism ; Burkholderia pseudomallei/pathogenicity/physiology ; Caspases/*metabolism ; *Cell Death ; Cytosol/*microbiology ; Gram-Negative Bacterial Infections/enzymology/*immunology/microbiology ; Immunity, Innate ; Inflammasomes/metabolism ; Macrophages/immunology/*microbiology ; Mice ; Mice, Inbred C57BL ; Phagosomes/microbiology ; Salmonella Infections, Animal/enzymology/immunology/microbiology ; Salmonella typhimurium/pathogenicity/physiology ; Vacuoles/*microbiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    Functional lysine modification by an intrinsically reactive primary glycolytic metabolite (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-08-03
    Description: The posttranslational modification of proteins and their regulation by metabolites represent conserved mechanisms in biology. At the confluence of these two processes, we report that the primary glycolytic intermediate 1,3-bisphosphoglycerate (1,3-BPG) reacts with select lysine residues in proteins to form 3-phosphoglyceryl-lysine (pgK). This reaction, which does not require enzyme catalysis, but rather exploits the electrophilicity of 1,3-BPG, was found by proteomic profiling to be enriched on diverse classes of proteins and prominently in or around the active sites of glycolytic enzymes. pgK modifications inhibit glycolytic enzymes and, in cells exposed to high glucose, accumulate on these enzymes to create a potential feedback mechanism that contributes to the buildup and redirection of glycolytic intermediates to alternate biosynthetic pathways.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4005992/" 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/PMC4005992/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Moellering, Raymond E -- Cravatt, Benjamin F -- CA087660/CA/NCI NIH HHS/ -- R37 CA087660/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2013 Aug 2;341(6145):549-53. doi: 10.1126/science.1238327.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Skaggs Institute for Chemical Biology and Department of Chemical Physiology, The Scripps Research Institute, La Jolla, CA 92037, USA. rmoeller@scripps.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23908237" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Biomarkers, Tumor/chemistry/metabolism ; Catalysis ; Cell Line ; DNA-Binding Proteins/chemistry/metabolism ; Diphosphoglyceric Acids/*metabolism ; Glucose/metabolism ; Glyceraldehyde-3-Phosphate Dehydrogenase (Phosphorylating)/chemistry/metabolism ; Glycerophosphates/*metabolism ; *Glycolysis ; Humans ; Lysine/*analogs & derivatives/*metabolism ; Mice ; Molecular Sequence Data ; Phosphopyruvate Hydratase/chemistry/metabolism ; *Protein Processing, Post-Translational ; Proteins/chemistry/*metabolism ; Tumor Suppressor Proteins/chemistry/metabolism
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
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    DICER1 deficit induces Alu RNA toxicity in age-related macular degeneration (2011)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2011-02-08
    Description: Geographic atrophy (GA), an untreatable advanced form of age-related macular degeneration, results from retinal pigmented epithelium (RPE) cell degeneration. Here we show that the microRNA (miRNA)-processing enzyme DICER1 is reduced in the RPE of humans with GA, and that conditional ablation of Dicer1, but not seven other miRNA-processing enzymes, induces RPE degeneration in mice. DICER1 knockdown induces accumulation of Alu RNA in human RPE cells and Alu-like B1 and B2 RNAs in mouse RPE. Alu RNA is increased in the RPE of humans with GA, and this pathogenic RNA induces human RPE cytotoxicity and RPE degeneration in mice. Antisense oligonucleotides targeting Alu/B1/B2 RNAs prevent DICER1 depletion-induced RPE degeneration despite global miRNA downregulation. DICER1 degrades Alu RNA, and this digested Alu RNA cannot induce RPE degeneration in mice. These findings reveal a miRNA-independent cell survival function for DICER1 involving retrotransposon transcript degradation, show that Alu RNA can directly cause human pathology, and identify new targets for a major cause of blindness.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3077055/" 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/PMC3077055/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaneko, Hiroki -- Dridi, Sami -- Tarallo, Valeria -- Gelfand, Bradley D -- Fowler, Benjamin J -- Cho, Won Gil -- Kleinman, Mark E -- Ponicsan, Steven L -- Hauswirth, William W -- Chiodo, Vince A -- Kariko, Katalin -- Yoo, Jae Wook -- Lee, Dong-ki -- Hadziahmetovic, Majda -- Song, Ying -- Misra, Smita -- Chaudhuri, Gautam -- Buaas, Frank W -- Braun, Robert E -- Hinton, David R -- Zhang, Qing -- Grossniklaus, Hans E -- Provis, Jan M -- Madigan, Michele C -- Milam, Ann H -- Justice, Nikki L -- Albuquerque, Romulo J C -- Blandford, Alexander D -- Bogdanovich, Sasha -- Hirano, Yoshio -- Witta, Jassir -- Fuchs, Elaine -- Littman, Dan R -- Ambati, Balamurali K -- Rudin, Charles M -- Chong, Mark M W -- Provost, Patrick -- Kugel, Jennifer F -- Goodrich, James A -- Dunaief, Joshua L -- Baffi, Judit Z -- Ambati, Jayakrishna -- NIHU10EY013729/EY/NEI NIH HHS/ -- P30 EY006360/EY/NEI NIH HHS/ -- P30 EY014800/EY/NEI NIH HHS/ -- P30 EY014800-07/EY/NEI NIH HHS/ -- P30 EY021721/EY/NEI NIH HHS/ -- P30EY003040/EY/NEI NIH HHS/ -- P30EY008571/EY/NEI NIH HHS/ -- P30EY06360/EY/NEI NIH HHS/ -- R01 EY018350/EY/NEI NIH HHS/ -- R01 EY018350-05/EY/NEI NIH HHS/ -- R01 EY018836/EY/NEI NIH HHS/ -- R01 EY018836-04/EY/NEI NIH HHS/ -- R01 EY020672/EY/NEI NIH HHS/ -- R01 EY020672-02/EY/NEI NIH HHS/ -- R01 GM068414/GM/NIGMS NIH HHS/ -- R01EY001545/EY/NEI NIH HHS/ -- R01EY011123/EY/NEI NIH HHS/ -- R01EY015240/EY/NEI NIH HHS/ -- R01EY015422/EY/NEI NIH HHS/ -- R01EY017182/EY/NEI NIH HHS/ -- R01EY017950/EY/NEI NIH HHS/ -- R01EY018350/EY/NEI NIH HHS/ -- R01EY018836/EY/NEI NIH HHS/ -- R01EY020672/EY/NEI NIH HHS/ -- R01GM068414/GM/NIGMS NIH HHS/ -- R01HD027215/HD/NICHD NIH HHS/ -- R21 EY019778/EY/NEI NIH HHS/ -- R21 EY019778-02/EY/NEI NIH HHS/ -- R21AI076757/AI/NIAID NIH HHS/ -- R21EY019778/EY/NEI NIH HHS/ -- RC1 EY020442/EY/NEI NIH HHS/ -- RC1 EY020442-02/EY/NEI NIH HHS/ -- RC1EY020442/EY/NEI NIH HHS/ -- T32HL091812/HL/NHLBI NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2011 Mar 17;471(7338):325-30. doi: 10.1038/nature09830. Epub 2011 Feb 6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Ophthalmology & Visual Sciences, University of Kentucky, Lexington, Kentucky 40506, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21297615" target="_blank"〉PubMed〈/a〉
    Keywords: Alu Elements/*genetics ; Animals ; Cell Death ; Cell Survival ; Cells, Cultured ; DEAD-box RNA Helicases/*deficiency/genetics/metabolism ; Gene Knockdown Techniques ; Humans ; Macular Degeneration/*genetics/*pathology ; Mice ; MicroRNAs/metabolism ; Molecular Sequence Data ; Oligonucleotides, Antisense ; Phenotype ; RNA/*genetics/*metabolism ; Retinal Pigment Epithelium/enzymology/metabolism/pathology ; Ribonuclease III/*deficiency/genetics/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 8
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    Extrathymically generated regulatory T cells control mucosal TH2 inflammation (2012)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2012-02-10
    Description: A balance between pro- and anti-inflammatory mechanisms at mucosal interfaces, which are sites of constitutive exposure to microbes and non-microbial foreign substances, allows for efficient protection against pathogens yet prevents adverse inflammatory responses associated with allergy, asthma and intestinal inflammation. Regulatory T (T(reg)) cells prevent systemic and tissue-specific autoimmunity and inflammatory lesions at mucosal interfaces. These cells are generated in the thymus (tT(reg) cells) and in the periphery (induced (i)T(reg) cells), and their dual origin implies a division of labour between tT(reg) and iT(reg) cells in immune homeostasis. Here we show that a highly selective blockage in differentiation of iT(reg) cells in mice did not lead to unprovoked multi-organ autoimmunity, exacerbation of induced tissue-specific autoimmune pathology, or increased pro-inflammatory responses of T helper 1 (T(H)1) and T(H)17 cells. However, mice deficient in iT(reg) cells spontaneously developed pronounced T(H)2-type pathologies at mucosal sites--in the gastrointestinal tract and lungs--with hallmarks of allergic inflammation and asthma. Furthermore, iT(reg)-cell deficiency altered gut microbial communities. These results suggest that whereas T(reg) cells generated in the thymus appear sufficient for control of systemic and tissue-specific autoimmunity, extrathymic differentiation of T(reg) cells affects commensal microbiota composition and serves a distinct, essential function in restraint of allergic-type inflammation at mucosal interfaces.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3485072/" 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/PMC3485072/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Josefowicz, Steven Z -- Niec, Rachel E -- Kim, Hye Young -- Treuting, Piper -- Chinen, Takatoshi -- Zheng, Ye -- Umetsu, Dale T -- Rudensky, Alexander Y -- 1F31NS073203-01/NS/NINDS NIH HHS/ -- F31 NS073203/NS/NINDS NIH HHS/ -- GM07739/GM/NIGMS NIH HHS/ -- R37 AI034206/AI/NIAID NIH HHS/ -- T32 GM007739/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2012 Feb 8;482(7385):395-9. doi: 10.1038/nature10772.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Immunology Program, Sloan Kettering Institute, New York, New York 10021, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22318520" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Asthma/immunology/pathology ; Cell Differentiation ; Enhancer Elements, Genetic/genetics ; Female ; Forkhead Transcription Factors/genetics ; Immunity, Mucosal/*immunology ; Inflammation/*immunology/pathology ; Intestines/immunology/microbiology/pathology ; Lung/immunology/pathology ; Male ; Mice ; Organ Specificity ; Stomach/immunology/microbiology/pathology ; T-Lymphocytes, Regulatory/*cytology/*immunology ; Th2 Cells/*immunology ; Thymus Gland
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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    Nutrition: When guests turn hostile (2013)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2013-03-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ley, Ruth E -- England -- Nature. 2013 Feb 28;494(7438):437-8. doi: 10.1038/494437a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23446414" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anti-Bacterial Agents/pharmacology/*therapeutic use ; Case-Control Studies ; Child, Preschool ; *Diet Therapy ; Feces/microbiology ; Germ-Free Life ; Health ; Humans ; Infant ; Infant, Newborn ; Kwashiorkor/diet therapy/epidemiology/etiology/microbiology ; Malawi/epidemiology ; Malnutrition/etiology/*microbiology/physiopathology/*therapy ; Mice ; Nutrition Processes/drug effects ; Probiotics/therapeutic use ; Risk Factors ; Survival Rate ; Symbiosis ; Twin Studies as Topic ; Weight Loss/drug effects
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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    Non-vesicular trafficking by a ceramide-1-phosphate transfer protein regulates eicosanoids (2013)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2013-07-19
    Description: Phosphorylated sphingolipids ceramide-1-phosphate (C1P) and sphingosine-1-phosphate (S1P) have emerged as key regulators of cell growth, survival, migration and inflammation. C1P produced by ceramide kinase is an activator of group IVA cytosolic phospholipase A2alpha (cPLA2alpha), the rate-limiting releaser of arachidonic acid used for pro-inflammatory eicosanoid production, which contributes to disease pathogenesis in asthma or airway hyper-responsiveness, cancer, atherosclerosis and thrombosis. To modulate eicosanoid action and avoid the damaging effects of chronic inflammation, cells require efficient targeting, trafficking and presentation of C1P to specific cellular sites. Vesicular trafficking is likely but non-vesicular mechanisms for C1P sensing, transfer and presentation remain unexplored. Moreover, the molecular basis for selective recognition and binding among signalling lipids with phosphate headgroups, namely C1P, phosphatidic acid or their lyso-derivatives, remains unclear. Here, a ubiquitously expressed lipid transfer protein, human GLTPD1, named here CPTP, is shown to specifically transfer C1P between membranes. Crystal structures establish C1P binding through a novel surface-localized, phosphate headgroup recognition centre connected to an interior hydrophobic pocket that adaptively expands to ensheath differing-length lipid chains using a cleft-like gating mechanism. The two-layer, alpha-helically-dominated 'sandwich' topology identifies CPTP as the prototype for a new glycolipid transfer protein fold subfamily. CPTP resides in the cell cytosol but associates with the trans-Golgi network, nucleus and plasma membrane. RNA interference-induced CPTP depletion elevates C1P steady-state levels and alters Golgi cisternae stack morphology. The resulting C1P decrease in plasma membranes and increase in the Golgi complex stimulates cPLA2alpha release of arachidonic acid, triggering pro-inflammatory eicosanoid generation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3951269/" 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/PMC3951269/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Simanshu, Dhirendra K -- Kamlekar, Ravi Kanth -- Wijesinghe, Dayanjan S -- Zou, Xianqiong -- Zhai, Xiuhong -- Mishra, Shrawan K -- Molotkovsky, Julian G -- Malinina, Lucy -- Hinchcliffe, Edward H -- Chalfant, Charles E -- Brown, Rhoderick E -- Patel, Dinshaw J -- CA121493/CA/NCI NIH HHS/ -- CA154314/CA/NCI NIH HHS/ -- GM072754/GM/NIGMS NIH HHS/ -- GM45928/GM/NIGMS NIH HHS/ -- I01 BX001792/BX/BLRD VA/ -- R01 CA121493/CA/NCI NIH HHS/ -- R01 CA154314/CA/NCI NIH HHS/ -- R01 GM045928/GM/NIGMS NIH HHS/ -- R01 GM072754/GM/NIGMS NIH HHS/ -- R01 HL072925/HL/NHLBI NIH HHS/ -- S10 OD010641/OD/NIH HHS/ -- T32 008695/PHS HHS/ -- England -- Nature. 2013 Aug 22;500(7463):463-7. doi: 10.1038/nature12332. Epub 2013 Jul 17.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Structural Biology Program, Memorial Sloan-Kettering Cancer Center, New York, New York 10065, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23863933" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Apoproteins/chemistry ; Arachidonic Acid/metabolism ; Biological Transport ; Carrier Proteins/chemistry/genetics/*metabolism ; Cell Membrane/metabolism ; Cell Nucleus/metabolism ; Ceramides/chemistry/*metabolism ; Crystallography, X-Ray ; Cytosol/metabolism ; Eicosanoids/*metabolism ; Humans ; Hydrophobic and Hydrophilic Interactions ; Mice ; Models, Molecular ; Phosphatidic Acids/chemistry/metabolism ; Protein Conformation ; Protein Folding ; Substrate Specificity ; trans-Golgi Network/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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