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  • 1
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    Chemical genetics of Plasmodium falciparum (2010)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2010-05-21
    Description: Malaria caused by Plasmodium falciparum is a disease that is responsible for 880,000 deaths per year worldwide. Vaccine development has proved difficult and resistance has emerged for most antimalarial drugs. To discover new antimalarial chemotypes, we have used a phenotypic forward chemical genetic approach to assay 309,474 chemicals. Here we disclose structures and biological activity of the entire library-many of which showed potent in vitro activity against drug-resistant P. falciparum strains-and detailed profiling of 172 representative candidates. A reverse chemical genetic study identified 19 new inhibitors of 4 validated drug targets and 15 novel binders among 61 malarial proteins. Phylochemogenetic profiling in several organisms revealed similarities between Toxoplasma gondii and mammalian cell lines and dissimilarities between P. falciparum and related protozoans. One exemplar compound displayed efficacy in a murine model. Our findings provide the scientific community with new starting points for malaria drug discovery.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2874979/" 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/PMC2874979/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Guiguemde, W Armand -- Shelat, Anang A -- Bouck, David -- Duffy, Sandra -- Crowther, Gregory J -- Davis, Paul H -- Smithson, David C -- Connelly, Michele -- Clark, Julie -- Zhu, Fangyi -- Jimenez-Diaz, Maria B -- Martinez, Maria S -- Wilson, Emily B -- Tripathi, Abhai K -- Gut, Jiri -- Sharlow, Elizabeth R -- Bathurst, Ian -- El Mazouni, Farah -- Fowble, Joseph W -- Forquer, Isaac -- McGinley, Paula L -- Castro, Steve -- Angulo-Barturen, Inigo -- Ferrer, Santiago -- Rosenthal, Philip J -- Derisi, Joseph L -- Sullivan, David J -- Lazo, John S -- Roos, David S -- Riscoe, Michael K -- Phillips, Margaret A -- Rathod, Pradipsinh K -- Van Voorhis, Wesley C -- Avery, Vicky M -- Guy, R Kiplin -- AI045774/AI/NIAID NIH HHS/ -- AI053680/AI/NIAID NIH HHS/ -- AI067921/AI/NIAID NIH HHS/ -- AI075517/AI/NIAID NIH HHS/ -- AI075594/AI/NIAID NIH HHS/ -- AI080625/AI/NIAID NIH HHS/ -- AI082617/AI/NIAID NIH HHS/ -- AI28724/AI/NIAID NIH HHS/ -- AI35707/AI/NIAID NIH HHS/ -- AI53862/AI/NIAID NIH HHS/ -- AI772682/AI/NIAID NIH HHS/ -- CA78039/CA/NCI NIH HHS/ -- F32 AI077268/AI/NIAID NIH HHS/ -- F32 AI077268-03/AI/NIAID NIH HHS/ -- P01 AI035707/AI/NIAID NIH HHS/ -- P01 AI035707-140007/AI/NIAID NIH HHS/ -- P01 CA078039-10/CA/NCI NIH HHS/ -- P41 RR001614/RR/NCRR NIH HHS/ -- P41 RR001614-246970/RR/NCRR NIH HHS/ -- R01 AI045774/AI/NIAID NIH HHS/ -- R01 AI045774-09/AI/NIAID NIH HHS/ -- R37 AI028724/AI/NIAID NIH HHS/ -- R37 AI028724-17/AI/NIAID NIH HHS/ -- R56 AI082617/AI/NIAID NIH HHS/ -- R56 AI082617-01/AI/NIAID NIH HHS/ -- U01 AI053862/AI/NIAID NIH HHS/ -- U01 AI053862-05/AI/NIAID NIH HHS/ -- U01 AI075594-03/AI/NIAID NIH HHS/ -- UL1 TR000005/TR/NCATS NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2010 May 20;465(7296):311-5. doi: 10.1038/nature09099.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemical Biology and Therapeutics, St Jude Children's Research Hospital, Memphis, Tennessee 38105, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20485428" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antimalarials/*analysis/isolation & purification/*pharmacology ; Cell Line ; *Drug Discovery ; Drug Evaluation, Preclinical ; Drug Resistance/drug effects ; Drug Therapy, Combination ; Erythrocytes/drug effects/parasitology ; Humans ; Malaria, Falciparum/drug therapy/parasitology ; Mice ; Phenotype ; Phylogeny ; Plasmodium falciparum/*drug effects/*genetics/metabolism ; Reproducibility of Results ; Small Molecule Libraries/chemistry/pharmacology
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 2
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    The zinc transporter ZIP12 regulates the pulmonary vascular response to chronic hypoxia (2015)
    Nature Publishing Group (NPG)
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    Publication Date: 2015-08-11
    Description: The typical response of the adult mammalian pulmonary circulation to a low oxygen environment is vasoconstriction and structural remodelling of pulmonary arterioles, leading to chronic elevation of pulmonary artery pressure (pulmonary hypertension) and right ventricular hypertrophy. Some mammals, however, exhibit genetic resistance to hypoxia-induced pulmonary hypertension. We used a congenic breeding program and comparative genomics to exploit this variation in the rat and identified the gene Slc39a12 as a major regulator of hypoxia-induced pulmonary vascular remodelling. Slc39a12 encodes the zinc transporter ZIP12. Here we report that ZIP12 expression is increased in many cell types, including endothelial, smooth muscle and interstitial cells, in the remodelled pulmonary arterioles of rats, cows and humans susceptible to hypoxia-induced pulmonary hypertension. We show that ZIP12 expression in pulmonary vascular smooth muscle cells is hypoxia dependent and that targeted inhibition of ZIP12 inhibits the rise in intracellular labile zinc in hypoxia-exposed pulmonary vascular smooth muscle cells and their proliferation in culture. We demonstrate that genetic disruption of ZIP12 expression attenuates the development of pulmonary hypertension in rats housed in a hypoxic atmosphere. This new and unexpected insight into the fundamental role of a zinc transporter in mammalian pulmonary vascular homeostasis suggests a new drug target for the pharmacological management of pulmonary hypertension.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhao, Lan -- Oliver, Eduardo -- Maratou, Klio -- Atanur, Santosh S -- Dubois, Olivier D -- Cotroneo, Emanuele -- Chen, Chien-Nien -- Wang, Lei -- Arce, Cristina -- Chabosseau, Pauline L -- Ponsa-Cobas, Joan -- Frid, Maria G -- Moyon, Benjamin -- Webster, Zoe -- Aldashev, Almaz -- Ferrer, Jorge -- Rutter, Guy A -- Stenmark, Kurt R -- Aitman, Timothy J -- Wilkins, Martin R -- 098424/Wellcome Trust/United Kingdom -- 101033/Wellcome Trust/United Kingdom -- MR/J0003042/1/Medical Research Council/United Kingdom -- P01 HL014985/HL/NHLBI NIH HHS/ -- PG/04/035/16912/British Heart Foundation/United Kingdom -- PG/10/59/28478/British Heart Foundation/United Kingdom -- PG/12/61/29818/British Heart Foundation/United Kingdom -- PG/2000137/British Heart Foundation/United Kingdom -- PG/95170/British Heart Foundation/United Kingdom -- PG/98018/British Heart Foundation/United Kingdom -- RG/10/16/28575/British Heart Foundation/United Kingdom -- WT098424AIA/Wellcome Trust/United Kingdom -- England -- Nature. 2015 Aug 20;524(7565):356-60. doi: 10.1038/nature14620. Epub 2015 Aug 10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for Pharmacology and Therapeutics, Division of Experimental Medicine, Imperial College London, Hammersmith Hospital, London W12 0NN, UK. ; Physiological Genomics and Medicine Group, Medical Research Council Clinical Sciences Centre, Hammersmith Hospital, London W12 0NN, UK. ; Section of Epigenomics and Disease, Department of Medicine, Faculty of Medicine, Imperial College London, Hammersmith Hospital, London W12 0NN, UK. ; Department of Pediatrics and Medicine, Division of Critical Care Medicine and Cardiovascular Pulmonary Research Laboratories, University of Colorado Denver, Denver, Colorado 80045, USA. ; Transgenics and Embryonic Stem Cell Laboratory, Medical Research Council Clinical Sciences Centre, Hammersmith Hospital, London W12 0NN, UK. ; Institute of Molecular Biology and Medicine, 3 Togolok Moldo Street, Bishkek 720040, Kyrgyzstan. ; Section of Cell Biology and Functional Genomics, Division of Diabetes, Endocrinology and Metabolism, Imperial College London, Hammersmith Hospital, London W12 0NN, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26258299" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Congenic ; Anoxia/genetics/*metabolism ; Arterioles/metabolism ; Cation Transport Proteins/deficiency/genetics/*metabolism ; Cattle ; Cell Hypoxia ; Cell Proliferation ; Cells, Cultured ; Chromosomes, Mammalian/genetics ; Chronic Disease ; Female ; Gene Knockdown Techniques ; Homeostasis ; Humans ; Hypertension, Pulmonary/genetics/*metabolism ; Intracellular Space/metabolism ; Male ; Muscle, Smooth, Vascular/cytology/*metabolism ; Rats ; Rats, Inbred F344 ; Rats, Inbred WKY ; Zinc/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 3
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    Differences between tight and loose cultures: a 33-nation study (2011)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2011-05-28
    Description: With data from 33 nations, we illustrate the differences between cultures that are tight (have many strong norms and a low tolerance of deviant behavior) versus loose (have weak social norms and a high tolerance of deviant behavior). Tightness-looseness is part of a complex, loosely integrated multilevel system that comprises distal ecological and historical threats (e.g., high population density, resource scarcity, a history of territorial conflict, and disease and environmental threats), broad versus narrow socialization in societal institutions (e.g., autocracy, media regulations), the strength of everyday recurring situations, and micro-level psychological affordances (e.g., prevention self-guides, high regulatory strength, need for structure). This research advances knowledge that can foster cross-cultural understanding in a world of increasing global interdependence and has implications for modeling cultural change.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gelfand, Michele J -- Raver, Jana L -- Nishii, Lisa -- Leslie, Lisa M -- Lun, Janetta -- Lim, Beng Chong -- Duan, Lili -- Almaliach, Assaf -- Ang, Soon -- Arnadottir, Jakobina -- Aycan, Zeynep -- Boehnke, Klaus -- Boski, Pawel -- Cabecinhas, Rosa -- Chan, Darius -- Chhokar, Jagdeep -- D'Amato, Alessia -- Ferrer, Montse -- Fischlmayr, Iris C -- Fischer, Ronald -- Fulop, Marta -- Georgas, James -- Kashima, Emiko S -- Kashima, Yoshishima -- Kim, Kibum -- Lempereur, Alain -- Marquez, Patricia -- Othman, Rozhan -- Overlaet, Bert -- Panagiotopoulou, Penny -- Peltzer, Karl -- Perez-Florizno, Lorena R -- Ponomarenko, Larisa -- Realo, Anu -- Schei, Vidar -- Schmitt, Manfred -- Smith, Peter B -- Soomro, Nazar -- Szabo, Erna -- Taveesin, Nalinee -- Toyama, Midori -- Van de Vliert, Evert -- Vohra, Naharika -- Ward, Colleen -- Yamaguchi, Susumu -- New York, N.Y. -- Science. 2011 May 27;332(6033):1100-4. doi: 10.1126/science.1197754.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychology, University of Maryland, College Park, MD 20742, USA. mgelfand@psyc.umd.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21617077" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; *Behavior ; *Cross-Cultural Comparison ; *Cultural Characteristics ; Female ; Government ; Humans ; Male ; Permissiveness ; Political Systems ; Population Density ; *Social Behavior ; *Social Conformity ; Social Control, Formal ; *Social Values ; Young Adult
    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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    Has the Earth's sixth mass extinction already arrived? (2011)
    Nature Publishing Group (NPG)
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    Publication Date: 2011-03-04
    Description: Palaeontologists characterize mass extinctions as times when the Earth loses more than three-quarters of its species in a geologically short interval, as has happened only five times in the past 540 million years or so. Biologists now suggest that a sixth mass extinction may be under way, given the known species losses over the past few centuries and millennia. Here we review how differences between fossil and modern data and the addition of recently available palaeontological information influence our understanding of the current extinction crisis. Our results confirm that current extinction rates are higher than would be expected from the fossil record, highlighting the need for effective conservation measures.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barnosky, Anthony D -- Matzke, Nicholas -- Tomiya, Susumu -- Wogan, Guinevere O U -- Swartz, Brian -- Quental, Tiago B -- Marshall, Charles -- McGuire, Jenny L -- Lindsey, Emily L -- Maguire, Kaitlin C -- Mersey, Ben -- Ferrer, Elizabeth A -- R01 GM069801/GM/NIGMS NIH HHS/ -- England -- Nature. 2011 Mar 3;471(7336):51-7. doi: 10.1038/nature09678.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Integrative Biology, University of California, Berkeley, California 94720, USA. barnosky@berkeley.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21368823" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biodiversity ; Conservation of Natural Resources/methods/trends ; Earth (Planet) ; Endangered Species/history/*statistics & numerical data/trends ; *Extinction, Biological ; Fossils ; History, 21st Century ; History, Ancient ; Human Activities ; Humans
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 5
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    Novel role of PKR in inflammasome activation and HMGB1 release (2012)
    Nature Publishing Group (NPG)
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    Publication Date: 2012-07-18
    Description: The inflammasome regulates the release of caspase activation-dependent cytokines, including interleukin (IL)-1beta, IL-18 and high-mobility group box 1 (HMGB1). By studying HMGB1 release mechanisms, here we identify a role for double-stranded RNA-dependent protein kinase (PKR, also known as EIF2AK2) in inflammasome activation. Exposure of macrophages to inflammasome agonists induced PKR autophosphorylation. PKR inactivation by genetic deletion or pharmacological inhibition severely impaired inflammasome activation in response to double-stranded RNA, ATP, monosodium urate, adjuvant aluminium, rotenone, live Escherichia coli, anthrax lethal toxin, DNA transfection and Salmonella typhimurium infection. PKR deficiency significantly inhibited the secretion of IL-1beta, IL-18 and HMGB1 in E. coli-induced peritonitis. PKR physically interacts with several inflammasome components, including NOD-like receptor (NLR) family pyrin domain-containing 3 (NLRP3), NLRP1, NLR family CARD domain-containing protein 4 (NLRC4), absent in melanoma 2 (AIM2), and broadly regulates inflammasome activation. PKR autophosphorylation in a cell-free system with recombinant NLRP3, apoptosis-associated speck-like protein containing a CARD (ASC, also known as PYCARD) and pro-caspase-1 reconstitutes inflammasome activity. These results show a crucial role for PKR in inflammasome activation, and indicate that it should be possible to pharmacologically target this molecule to treat inflammation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4163918/" 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/PMC4163918/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lu, Ben -- Nakamura, Takahisa -- Inouye, Karen -- Li, Jianhua -- Tang, Yiting -- Lundback, Peter -- Valdes-Ferrer, Sergio I -- Olofsson, Peder S -- Kalb, Thomas -- Roth, Jesse -- Zou, Yongrui -- Erlandsson-Harris, Helena -- Yang, Huan -- Ting, Jenny P-Y -- Wang, Haichao -- Andersson, Ulf -- Antoine, Daniel J -- Chavan, Sangeeta S -- Hotamisligil, Gokhan S -- Tracey, Kevin J -- DK052539/DK/NIDDK NIH HHS/ -- G0700654/Medical Research Council/United Kingdom -- R01 DK052539/DK/NIDDK NIH HHS/ -- R01 GM057226/GM/NIGMS NIH HHS/ -- R01 GM062508/GM/NIGMS NIH HHS/ -- R01 GM62508/GM/NIGMS NIH HHS/ -- England -- Nature. 2012 Aug 30;488(7413):670-4. doi: 10.1038/nature11290.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Biomedical Science, The Feinstein Institute for Medical Research, 350 Community Drive, Manhasset, New York 11030, USA. blu@nshs.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22801494" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing/metabolism ; Adenosine Triphosphate/pharmacology ; Animals ; Antigens, Bacterial/pharmacology ; Apoptosis Regulatory Proteins/metabolism ; Bacterial Toxins/pharmacology ; CARD Signaling Adaptor Proteins/metabolism ; Calcium-Binding Proteins/metabolism ; Carrier Proteins/metabolism ; Cell Line ; Cells, Cultured ; Crystallins/metabolism ; Escherichia coli/immunology/physiology ; Escherichia coli Infections/immunology/metabolism ; Female ; HMGB1 Protein/blood/*secretion ; Humans ; Inflammasomes/agonists/*metabolism ; Interleukin-18/blood ; Interleukin-1beta/blood ; Interleukin-6/analysis/blood ; Macrophages, Peritoneal/drug effects/metabolism ; Male ; Membrane Proteins/metabolism ; Mice ; Mice, Inbred C57BL ; Peritonitis/metabolism ; Phosphorylation ; RNA, Double-Stranded/immunology/pharmacology ; Rotenone/pharmacology ; Salmonella Infections/immunology/metabolism ; Salmonella typhimurium/immunology/physiology ; Transfection ; Uric Acid/pharmacology ; eIF-2 Kinase/antagonists & inhibitors/deficiency/genetics/*metabolism
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 6
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    Neuropathy of haematopoietic stem cell niche is essential for myeloproliferative neoplasms (2014)
    Nature Publishing Group (NPG)
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    Publication Date: 2014-07-22
    Description: Myeloproliferative neoplasms (MPNs) are diseases caused by mutations in the haematopoietic stem cell (HSC) compartment. Most MPN patients have a common acquired mutation of Janus kinase 2 (JAK2) gene in HSCs that renders this kinase constitutively active, leading to uncontrolled cell expansion. The bone marrow microenvironment might contribute to the clinical outcomes of this common event. We previously showed that bone marrow nestin(+) mesenchymal stem cells (MSCs) innervated by sympathetic nerve fibres regulate normal HSCs. Here we demonstrate that abrogation of this regulatory circuit is essential for MPN pathogenesis. Sympathetic nerve fibres, supporting Schwann cells and nestin(+) MSCs are consistently reduced in the bone marrow of MPN patients and mice expressing the human JAK2(V617F) mutation in HSCs. Unexpectedly, MSC reduction is not due to differentiation but is caused by bone marrow neural damage and Schwann cell death triggered by interleukin-1beta produced by mutant HSCs. In turn, in vivo depletion of nestin(+) cells or their production of CXCL12 expanded mutant HSC number and accelerated MPN progression. In contrast, administration of neuroprotective or sympathomimetic drugs prevented mutant HSC expansion. Treatment with beta3-adrenergic agonists that restored the sympathetic regulation of nestin(+) MSCs prevented the loss of these cells and blocked MPN progression by indirectly reducing the number of leukaemic stem cells. Our results demonstrate that mutant-HSC-driven niche damage critically contributes to disease manifestation in MPN and identify niche-forming MSCs and their neural regulation as promising therapeutic targets.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Arranz, Lorena -- Sanchez-Aguilera, Abel -- Martin-Perez, Daniel -- Isern, Joan -- Langa, Xavier -- Tzankov, Alexandar -- Lundberg, Pontus -- Muntion, Sandra -- Tzeng, Yi-Shiuan -- Lai, Dar-Ming -- Schwaller, Jurg -- Skoda, Radek C -- Mendez-Ferrer, Simon -- Howard Hughes Medical Institute/ -- England -- Nature. 2014 Aug 7;512(7512):78-81. doi: 10.1038/nature13383. Epub 2014 Jun 22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Stem Cell Niche Pathophysiology Group, Centro Nacional de Investigaciones Cardiovasculares (CNIC), 28029 Madrid, Spain. ; University Hospital Basel, CH-4031 Basel, Switzerland. ; Department of Haematology, IBSAL-Hospital Universitario de Salamanca, 37007 Salamanca, Spain. ; National Taiwan University, Taipei 10002, Taiwan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25043017" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenergic beta-3 Receptor Agonists/pharmacology/therapeutic use ; Animals ; Apoptosis/drug effects ; Disease Progression ; Female ; Hematopoietic Stem Cells/drug effects/*pathology ; Humans ; Interleukin-1beta/metabolism ; Janus Kinase 2/genetics ; Mesenchymal Stromal Cells/drug effects/pathology ; Mice ; Myeloproliferative Disorders/drug therapy/*pathology ; Neoplasms/drug therapy/*pathology ; Neoplastic Stem Cells/drug effects/pathology ; Nerve Fibers/drug effects/*pathology ; Nestin/metabolism ; Neuroprotective Agents/pharmacology/therapeutic use ; Receptors, Adrenergic, beta-3/metabolism ; Schwann Cells/drug effects/pathology ; *Stem Cell Niche ; Sympathetic Nervous System/drug effects/*pathology/physiopathology
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 7
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    Long non-coding antisense RNA controls Uchl1 translation through an embedded SINEB2 repeat (2012)
    Nature Publishing Group (NPG)
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    Publication Date: 2012-10-16
    Description: Most of the mammalian genome is transcribed. This generates a vast repertoire of transcripts that includes protein-coding messenger RNAs, long non-coding RNAs (lncRNAs) and repetitive sequences, such as SINEs (short interspersed nuclear elements). A large percentage of ncRNAs are nuclear-enriched with unknown function. Antisense lncRNAs may form sense-antisense pairs by pairing with a protein-coding gene on the opposite strand to regulate epigenetic silencing, transcription and mRNA stability. Here we identify a nuclear-enriched lncRNA antisense to mouse ubiquitin carboxy-terminal hydrolase L1 (Uchl1), a gene involved in brain function and neurodegenerative diseases. Antisense Uchl1 increases UCHL1 protein synthesis at a post-transcriptional level, hereby identifying a new functional class of lncRNAs. Antisense Uchl1 activity depends on the presence of a 5' overlapping sequence and an embedded inverted SINEB2 element. These features are shared by other natural antisense transcripts and can confer regulatory activity to an artificial antisense to green fluorescent protein. Antisense Uchl1 function is under the control of stress signalling pathways, as mTORC1 inhibition by rapamycin causes an increase in UCHL1 protein that is associated to the shuttling of antisense Uchl1 RNA from the nucleus to the cytoplasm. Antisense Uchl1 RNA is then required for the association of the overlapping sense protein-coding mRNA to active polysomes for translation. These data reveal another layer of gene expression control at the post-transcriptional level.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carrieri, Claudia -- Cimatti, Laura -- Biagioli, Marta -- Beugnet, Anne -- Zucchelli, Silvia -- Fedele, Stefania -- Pesce, Elisa -- Ferrer, Isidre -- Collavin, Licio -- Santoro, Claudio -- Forrest, Alistair R R -- Carninci, Piero -- Biffo, Stefano -- Stupka, Elia -- Gustincich, Stefano -- England -- Nature. 2012 Nov 15;491(7424):454-7. doi: 10.1038/nature11508. Epub 2012 Oct 14.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Area of Neuroscience, International School for Advanced Studies (SISSA), via Bonomea 265, 34136 Trieste, Italy.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23064229" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anti-Bacterial Agents/pharmacology ; Cell Line ; Humans ; Male ; Mice ; Protein Biosynthesis/drug effects/*genetics ; RNA, Antisense/genetics/*metabolism ; Sequence Inversion ; Short Interspersed Nucleotide Elements/*genetics ; Sirolimus/pharmacology ; Ubiquitin Thiolesterase/*genetics/*metabolism
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 8
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    Comment on "Unique in the shopping mall: On the reidentifiability of credit card metadata" (2016)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2016-03-19
    Description: De Montjoye et al. (Reports, 30 January 2015, p. 536) claimed that most individuals can be reidentified from a deidentified transaction database and that anonymization mechanisms are not effective against reidentification. We demonstrate that anonymization can be performed by techniques well established in the literature.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sanchez, David -- Martinez, Sergio -- Domingo-Ferrer, Josep -- New York, N.Y. -- Science. 2016 Mar 18;351(6279):1274. doi: 10.1126/science.aad9295.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉United Nations Educational, Scientific, and Cultural Organization (UNESCO) Chair in Data Privacy, Department of Computer Engineering and Mathematics, Universitat Rovira i Virgili (URV), Avenue Paisos Catalans, 26, E-43007, Tarragona, Catalonia. david.sanchez@urv.cat. ; United Nations Educational, Scientific, and Cultural Organization (UNESCO) Chair in Data Privacy, Department of Computer Engineering and Mathematics, Universitat Rovira i Virgili (URV), Avenue Paisos Catalans, 26, E-43007, Tarragona, Catalonia.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26989243" target="_blank"〉PubMed〈/a〉
    Keywords: *Commerce ; *Data Collection ; Female ; Humans ; *Information Dissemination ; Male ; *Privacy
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