ALBERT

Description: Autism spectrum disorder (ASD) is a group of conditions characterized by impaired social interaction and communication, and restricted and repetitive behaviours. ASD is a highly heritable disorder involving various genetic determinants. Shank2 (also known as ProSAP1) is a multi-domain scaffolding protein and signalling adaptor enriched at excitatory neuronal synapses, and mutations in the human SHANK2 gene have recently been associated with ASD and intellectual disability. Although ASD-associated genes are being increasingly identified and studied using various approaches, including mouse genetics, further efforts are required to delineate important causal mechanisms with the potential for therapeutic application. Here we show that Shank2-mutant (Shank2(-/-)) mice carrying a mutation identical to the ASD-associated microdeletion in the human SHANK2 gene exhibit ASD-like behaviours including reduced social interaction, reduced social communication by ultrasonic vocalizations, and repetitive jumping. These mice show a marked decrease in NMDA (N-methyl-D-aspartate) glutamate receptor (NMDAR) function. Direct stimulation of NMDARs with D-cycloserine, a partial agonist of NMDARs, normalizes NMDAR function and improves social interaction in Shank2(-/-) mice. Furthermore, treatment of Shank2(-/-) mice with a positive allosteric modulator of metabotropic glutamate receptor 5 (mGluR5), which enhances NMDAR function via mGluR5 activation, also normalizes NMDAR function and markedly enhances social interaction. These results suggest that reduced NMDAR function may contribute to the development of ASD-like phenotypes in Shank2(-/-) mice, and mGluR modulation of NMDARs offers a potential strategy to treat ASD.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Won, Hyejung -- Lee, Hye-Ryeon -- Gee, Heon Yung -- Mah, Won -- Kim, Jae-Ick -- Lee, Jiseok -- Ha, Seungmin -- Chung, Changuk -- Jung, Eun Suk -- Cho, Yi Sul -- Park, Sae-Geun -- Lee, Jung-Soo -- Lee, Kyungmin -- Kim, Daesoo -- Bae, Yong Chul -- Kaang, Bong-Kiun -- Lee, Min Goo -- Kim, Eunjoon -- England -- Nature. 2012 Jun 13;486(7402):261-5. doi: 10.1038/nature11208.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Sciences, KAIST, Daejeon 305-701, Korea.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22699620" target="_blank"〉PubMed〈/a〉

Description: Plasma concentrations of total cholesterol, low-density lipoprotein cholesterol, high-density lipoprotein cholesterol and triglycerides are among the most important risk factors for coronary artery disease (CAD) and are targets for therapeutic intervention. We screened the genome for common variants associated with plasma lipids in 〉100,000 individuals of European ancestry. Here we report 95 significantly associated loci (P 〈 5 x 10(-8)), with 59 showing genome-wide significant association with lipid traits for the first time. The newly reported associations include single nucleotide polymorphisms (SNPs) near known lipid regulators (for example, CYP7A1, NPC1L1 and SCARB1) as well as in scores of loci not previously implicated in lipoprotein metabolism. The 95 loci contribute not only to normal variation in lipid traits but also to extreme lipid phenotypes and have an impact on lipid traits in three non-European populations (East Asians, South Asians and African Americans). Our results identify several novel loci associated with plasma lipids that are also associated with CAD. Finally, we validated three of the novel genes-GALNT2, PPP1R3B and TTC39B-with experiments in mouse models. Taken together, our findings provide the foundation to develop a broader biological understanding of lipoprotein metabolism and to identify new therapeutic opportunities for the prevention of CAD.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3039276/" 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/PMC3039276/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Teslovich, Tanya M -- Musunuru, Kiran -- Smith, Albert V -- Edmondson, Andrew C -- Stylianou, Ioannis M -- Koseki, Masahiro -- Pirruccello, James P -- Ripatti, Samuli -- Chasman, Daniel I -- Willer, Cristen J -- Johansen, Christopher T -- Fouchier, Sigrid W -- Isaacs, Aaron -- Peloso, Gina M -- Barbalic, Maja -- Ricketts, Sally L -- Bis, Joshua C -- Aulchenko, Yurii S -- Thorleifsson, Gudmar -- Feitosa, Mary F -- Chambers, John -- Orho-Melander, Marju -- Melander, Olle -- Johnson, Toby -- Li, Xiaohui -- Guo, Xiuqing -- Li, Mingyao -- Shin Cho, Yoon -- Jin Go, Min -- Jin Kim, Young -- Lee, Jong-Young -- Park, Taesung -- Kim, Kyunga -- Sim, Xueling -- Twee-Hee Ong, Rick -- Croteau-Chonka, Damien C -- Lange, Leslie A -- Smith, Joshua D -- Song, Kijoung -- Hua Zhao, Jing -- Yuan, Xin -- Luan, Jian'an -- Lamina, Claudia -- Ziegler, Andreas -- Zhang, Weihua -- Zee, Robert Y L -- Wright, Alan F -- Witteman, Jacqueline C M -- Wilson, James F -- Willemsen, Gonneke -- Wichmann, H-Erich -- Whitfield, John B -- Waterworth, Dawn M -- Wareham, Nicholas J -- Waeber, Gerard -- Vollenweider, Peter -- Voight, Benjamin F -- Vitart, Veronique -- Uitterlinden, Andre G -- Uda, Manuela -- Tuomilehto, Jaakko -- Thompson, John R -- Tanaka, Toshiko -- Surakka, Ida -- Stringham, Heather M -- Spector, Tim D -- Soranzo, Nicole -- Smit, Johannes H -- Sinisalo, Juha -- Silander, Kaisa -- Sijbrands, Eric J G -- Scuteri, Angelo -- Scott, James -- Schlessinger, David -- Sanna, Serena -- Salomaa, Veikko -- Saharinen, Juha -- Sabatti, Chiara -- Ruokonen, Aimo -- Rudan, Igor -- Rose, Lynda M -- Roberts, Robert -- Rieder, Mark -- Psaty, Bruce M -- Pramstaller, Peter P -- Pichler, Irene -- Perola, Markus -- Penninx, Brenda W J H -- Pedersen, Nancy L -- Pattaro, Cristian -- Parker, Alex N -- Pare, Guillaume -- Oostra, Ben A -- O'Donnell, Christopher J -- Nieminen, Markku S -- Nickerson, Deborah A -- Montgomery, Grant W -- Meitinger, Thomas -- McPherson, Ruth -- McCarthy, Mark I -- McArdle, Wendy -- Masson, David -- Martin, Nicholas G -- Marroni, Fabio -- Mangino, Massimo -- Magnusson, Patrik K E -- Lucas, Gavin -- Luben, Robert -- Loos, Ruth J F -- Lokki, Marja-Liisa -- Lettre, Guillaume -- Langenberg, Claudia -- Launer, Lenore J -- Lakatta, Edward G -- Laaksonen, Reijo -- Kyvik, Kirsten O -- Kronenberg, Florian -- Konig, Inke R -- Khaw, Kay-Tee -- Kaprio, Jaakko -- Kaplan, Lee M -- Johansson, Asa -- Jarvelin, Marjo-Riitta -- Janssens, A Cecile J W -- Ingelsson, Erik -- Igl, Wilmar -- Kees Hovingh, G -- Hottenga, Jouke-Jan -- Hofman, Albert -- Hicks, Andrew A -- Hengstenberg, Christian -- Heid, Iris M -- Hayward, Caroline -- Havulinna, Aki S -- Hastie, Nicholas D -- Harris, Tamara B -- Haritunians, Talin -- Hall, Alistair S -- Gyllensten, Ulf -- Guiducci, Candace -- Groop, Leif C -- Gonzalez, Elena -- Gieger, Christian -- Freimer, Nelson B -- Ferrucci, Luigi -- Erdmann, Jeanette -- Elliott, Paul -- Ejebe, Kenechi G -- Doring, Angela -- Dominiczak, Anna F -- Demissie, Serkalem -- Deloukas, Panagiotis -- de Geus, Eco J C -- de Faire, Ulf -- Crawford, Gabriel -- Collins, Francis S -- Chen, Yii-der I -- Caulfield, Mark J -- Campbell, Harry -- Burtt, Noel P -- Bonnycastle, Lori L -- Boomsma, Dorret I -- Boekholdt, S Matthijs -- Bergman, Richard N -- Barroso, Ines -- Bandinelli, Stefania -- Ballantyne, Christie M -- Assimes, Themistocles L -- Quertermous, Thomas -- Altshuler, David -- Seielstad, Mark -- Wong, Tien Y -- Tai, E-Shyong -- Feranil, Alan B -- Kuzawa, Christopher W -- Adair, Linda S -- Taylor, Herman A Jr -- Borecki, Ingrid B -- Gabriel, Stacey B -- Wilson, James G -- Holm, Hilma -- Thorsteinsdottir, Unnur -- Gudnason, Vilmundur -- Krauss, Ronald M -- Mohlke, Karen L -- Ordovas, Jose M -- Munroe, Patricia B -- Kooner, Jaspal S -- Tall, Alan R -- Hegele, Robert A -- Kastelein, John J P -- Schadt, Eric E -- Rotter, Jerome I -- Boerwinkle, Eric -- Strachan, David P -- Mooser, Vincent -- Stefansson, Kari -- Reilly, Muredach P -- Samani, Nilesh J -- Schunkert, Heribert -- Cupples, L Adrienne -- Sandhu, Manjinder S -- Ridker, Paul M -- Rader, Daniel J -- van Duijn, Cornelia M -- Peltonen, Leena -- Abecasis, Goncalo R -- Boehnke, Michael -- Kathiresan, Sekar -- 068545/Z/02/Wellcome Trust/United Kingdom -- 076113/B/04/Z/Wellcome Trust/United Kingdom -- 077016/Z/05/Z/Wellcome Trust/United Kingdom -- 079895/Wellcome Trust/United Kingdom -- 1Z01 HG000024/HG/NHGRI NIH HHS/ -- 5R01DK06833603/DK/NIDDK NIH HHS/ -- 5R01DK07568102/DK/NIDDK NIH HHS/ -- 5R01HL087679-02/HL/NHLBI NIH HHS/ -- 5R01HL08770003/HL/NHLBI NIH HHS/ -- 5R01HL08821502/HL/NHLBI NIH HHS/ -- CA 047988/CA/NCI NIH HHS/ -- CZB/4/710/Chief Scientist Office/United Kingdom -- DK062370/DK/NIDDK NIH HHS/ -- DK063491/DK/NIDDK NIH HHS/ -- DK072193/DK/NIDDK NIH HHS/ -- DK078150/DK/NIDDK NIH HHS/ -- DK56350/DK/NIDDK NIH HHS/ -- ES10126/ES/NIEHS NIH HHS/ -- G0000934/Medical Research Council/United Kingdom -- G0401527/Medical Research Council/United Kingdom -- G0601966/Medical Research Council/United Kingdom -- G0700931/Medical Research Council/United Kingdom -- G0701863/Medical Research Council/United Kingdom -- G0801056/Medical Research Council/United Kingdom -- G0801566/Medical Research Council/United Kingdom -- G9521010/Medical Research Council/United Kingdom -- G9521010D/Medical Research Council/United Kingdom -- HHSN268200625226C/PHS HHS/ -- HL 04381/HL/NHLBI NIH HHS/ -- HL 080467/HL/NHLBI NIH HHS/ -- HL-54776/HL/NHLBI NIH HHS/ -- HL085144/HL/NHLBI NIH HHS/ -- K99 HL098364/HL/NHLBI NIH HHS/ -- K99 HL098364-01/HL/NHLBI NIH HHS/ -- K99HL094535/HL/NHLBI NIH HHS/ -- M01-RR00425/RR/NCRR NIH HHS/ -- MC_QA137934/Medical Research Council/United Kingdom -- MC_U106179471/Medical Research Council/United Kingdom -- MC_U106188470/Medical Research Council/United Kingdom -- MC_U127561128/Medical Research Council/United Kingdom -- N01 HC-15103/HC/NHLBI NIH HHS/ -- N01 HC-55222/HC/NHLBI NIH HHS/ -- N01-AG-12100/AG/NIA NIH HHS/ -- N01-HC-25195/HC/NHLBI NIH HHS/ -- N01-HC-35129/HC/NHLBI NIH HHS/ -- N01-HC-45133/HC/NHLBI NIH HHS/ -- N01-HC-55015/HC/NHLBI NIH HHS/ -- N01-HC-55016/HC/NHLBI NIH HHS/ -- N01-HC-55018/HC/NHLBI NIH HHS/ -- N01-HC-55019/HC/NHLBI NIH HHS/ -- N01-HC-55020/HC/NHLBI NIH HHS/ -- N01-HC-55021/HC/NHLBI NIH HHS/ -- N01-HC-55022/HC/NHLBI NIH HHS/ -- N01-HC-75150/HC/NHLBI NIH HHS/ -- N01-HC-85079/HC/NHLBI NIH HHS/ -- N01-HC-85080/HC/NHLBI NIH HHS/ -- N01-HC-85081/HC/NHLBI NIH HHS/ -- N01-HC-85082/HC/NHLBI NIH HHS/ -- N01-HC-85083/HC/NHLBI NIH HHS/ -- N01-HC-85084/HC/NHLBI NIH HHS/ -- N01-HC-85085/HC/NHLBI NIH HHS/ -- N01-HC-85086/HC/NHLBI NIH HHS/ -- N01-HG-65403/HG/NHGRI NIH HHS/ -- N02-HL-6-4278/HL/NHLBI NIH HHS/ -- PG/02/128/British Heart Foundation/United Kingdom -- PG/08/094/British Heart Foundation/United Kingdom -- PG/08/094/26019/British Heart Foundation/United Kingdom -- R01 DK072193/DK/NIDDK NIH HHS/ -- R01 DK078150/DK/NIDDK NIH HHS/ -- R01 HL087647/HL/NHLBI NIH HHS/ -- R01 HL087676/HL/NHLBI NIH HHS/ -- R01 HL089650/HL/NHLBI NIH HHS/ -- R01HL086694/HL/NHLBI NIH HHS/ -- R01HL087641/HL/NHLBI NIH HHS/ -- R01HL087652/HL/NHLBI NIH HHS/ -- R01HL59367/HL/NHLBI NIH HHS/ -- R24 HD050924/HD/NICHD NIH HHS/ -- RC1 HL099634/HL/NHLBI NIH HHS/ -- RC1 HL099634-02/HL/NHLBI NIH HHS/ -- RC1 HL099793/HL/NHLBI NIH HHS/ -- RC2 HL101864,/HL/NHLBI NIH HHS/ -- RC2 HL102419/HL/NHLBI NIH HHS/ -- RG/07/005/23633/British Heart Foundation/United Kingdom -- RR20649/RR/NCRR NIH HHS/ -- SP/08/005/25115/British Heart Foundation/United Kingdom -- T32 GM007092/GM/NIGMS NIH HHS/ -- T32 HG00040/HG/NHGRI NIH HHS/ -- T32HL007208/HL/NHLBI NIH HHS/ -- TW05596/TW/FIC NIH HHS/ -- U01 DK062370/DK/NIDDK NIH HHS/ -- U01 DK062418/DK/NIDDK NIH HHS/ -- U01 HL069757/HL/NHLBI NIH HHS/ -- U01 HL080295/HL/NHLBI NIH HHS/ -- U01HG004402/HG/NHGRI NIH HHS/ -- U54 RR020278/RR/NCRR NIH HHS/ -- UL1RR025005/RR/NCRR NIH HHS/ -- Intramural NIH HHS/ -- England -- Nature. 2010 Aug 5;466(7307):707-13. doi: 10.1038/nature09270.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Statistical Genetics, Department of Biostatistics, University of Michigan, Ann Arbor, Michigan 48109, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20686565" target="_blank"〉PubMed〈/a〉

Description: Hypothalamic pro-opiomelanocortin (POMC) neurons promote satiety. Cannabinoid receptor 1 (CB1R) is critical for the central regulation of food intake. Here we test whether CB1R-controlled feeding in sated mice is paralleled by decreased activity of POMC neurons. We show that chemical promotion of CB1R activity increases feeding, and notably, CB1R activation also promotes neuronal activity of POMC cells. This paradoxical increase in POMC activity was crucial for CB1R-induced feeding, because designer-receptors-exclusively-activated-by-designer-drugs (DREADD)-mediated inhibition of POMC neurons diminishes, whereas DREADD-mediated activation of POMC neurons enhances CB1R-driven feeding. The Pomc gene encodes both the anorexigenic peptide alpha-melanocyte-stimulating hormone, and the opioid peptide beta-endorphin. CB1R activation selectively increases beta-endorphin but not alpha-melanocyte-stimulating hormone release in the hypothalamus, and systemic or hypothalamic administration of the opioid receptor antagonist naloxone blocks acute CB1R-induced feeding. These processes involve mitochondrial adaptations that, when blocked, abolish CB1R-induced cellular responses and feeding. Together, these results uncover a previously unsuspected role of POMC neurons in the promotion of feeding by cannabinoids.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4496586/" 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/PMC4496586/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Koch, Marco -- Varela, Luis -- Kim, Jae Geun -- Kim, Jung Dae -- Hernandez-Nuno, Francisco -- Simonds, Stephanie E -- Castorena, Carlos M -- Vianna, Claudia R -- Elmquist, Joel K -- Morozov, Yury M -- Rakic, Pasko -- Bechmann, Ingo -- Cowley, Michael A -- Szigeti-Buck, Klara -- Dietrich, Marcelo O -- Gao, Xiao-Bing -- Diano, Sabrina -- Horvath, Tamas L -- DP1 DK098058/DK/NIDDK NIH HHS/ -- DP1DK098058/DK/NIDDK NIH HHS/ -- P01 NS062686/NS/NINDS NIH HHS/ -- R01 AG040236/AG/NIA NIH HHS/ -- R01 DA023999/DA/NIDA NIH HHS/ -- R01AG040236/AG/NIA NIH HHS/ -- R01DK097566/DK/NIDDK NIH HHS/ -- R37 DK053301/DK/NIDDK NIH HHS/ -- England -- Nature. 2015 Mar 5;519(7541):45-50. doi: 10.1038/nature14260. Epub 2015 Feb 18.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Program in Integrative Cell Signaling and Neurobiology of Metabolism, Section of Comparative Medicine, Yale University School of Medicine, New Haven, Connecticut 06520, USA [2] Institute of Anatomy, University of Leipzig, 04103 Leipzig, Germany. ; Program in Integrative Cell Signaling and Neurobiology of Metabolism, Section of Comparative Medicine, Yale University School of Medicine, New Haven, Connecticut 06520, USA. ; 1] Program in Integrative Cell Signaling and Neurobiology of Metabolism, Section of Comparative Medicine, Yale University School of Medicine, New Haven, Connecticut 06520, USA [2] Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, Connecticut 06520, USA. ; Obesity &Diabetes Institute, Department of Physiology, Monash University, Clayton, Victoria 3800, Australia. ; Division of Endocrinology &Metabolism, Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA. ; Department of Neurobiology, Yale University School of Medicine, New Haven, Connecticut 06520, USA. ; 1] Department of Neurobiology, Yale University School of Medicine, New Haven, Connecticut 06520, USA [2] Kavli Institute for Neuroscience, Yale University School of Medicine, New Haven, Connecticut 06520, USA. ; Institute of Anatomy, University of Leipzig, 04103 Leipzig, Germany. ; 1] Program in Integrative Cell Signaling and Neurobiology of Metabolism, Section of Comparative Medicine, Yale University School of Medicine, New Haven, Connecticut 06520, USA [2] Department of Neurobiology, Yale University School of Medicine, New Haven, Connecticut 06520, USA. ; 1] Program in Integrative Cell Signaling and Neurobiology of Metabolism, Section of Comparative Medicine, Yale University School of Medicine, New Haven, Connecticut 06520, USA [2] Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, Connecticut 06520, USA [3] Department of Neurobiology, Yale University School of Medicine, New Haven, Connecticut 06520, USA. ; 1] Program in Integrative Cell Signaling and Neurobiology of Metabolism, Section of Comparative Medicine, Yale University School of Medicine, New Haven, Connecticut 06520, USA [2] Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, Connecticut 06520, USA [3] Department of Neurobiology, Yale University School of Medicine, New Haven, Connecticut 06520, USA [4] Kavli Institute for Neuroscience, Yale University School of Medicine, New Haven, Connecticut 06520, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25707796" target="_blank"〉PubMed〈/a〉

Description: The GGGGCC (G4C2) repeat expansion in a noncoding region of C9orf72 is the most common cause of sporadic and familial forms of amyotrophic lateral sclerosis and frontotemporal dementia. The basis for pathogenesis is unknown. To elucidate the consequences of G4C2 repeat expansion in a tractable genetic system, we generated transgenic fly lines expressing 8, 28 or 58 G4C2-repeat-containing transcripts that do not have a translation start site (AUG) but contain an open-reading frame for green fluorescent protein to detect repeat-associated non-AUG (RAN) translation. We show that these transgenic animals display dosage-dependent, repeat-length-dependent degeneration in neuronal tissues and RAN translation of dipeptide repeat (DPR) proteins, as observed in patients with C9orf72-related disease. This model was used in a large-scale, unbiased genetic screen, ultimately leading to the identification of 18 genetic modifiers that encode components of the nuclear pore complex (NPC), as well as the machinery that coordinates the export of nuclear RNA and the import of nuclear proteins. Consistent with these results, we found morphological abnormalities in the architecture of the nuclear envelope in cells expressing expanded G4C2 repeats in vitro and in vivo. Moreover, we identified a substantial defect in RNA export resulting in retention of RNA in the nuclei of Drosophila cells expressing expanded G4C2 repeats and also in mammalian cells, including aged induced pluripotent stem-cell-derived neurons from patients with C9orf72-related disease. These studies show that a primary consequence of G4C2 repeat expansion is the compromise of nucleocytoplasmic transport through the nuclear pore, revealing a novel mechanism of neurodegeneration.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4631399/" 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/PMC4631399/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Freibaum, Brian D -- Lu, Yubing -- Lopez-Gonzalez, Rodrigo -- Kim, Nam Chul -- Almeida, Sandra -- Lee, Kyung-Ha -- Badders, Nisha -- Valentine, Marc -- Miller, Bruce L -- Wong, Philip C -- Petrucelli, Leonard -- Kim, Hong Joo -- Gao, Fen-Biao -- Taylor, J Paul -- AG019724/AG/NIA NIH HHS/ -- N079725/PHS HHS/ -- NS079725/NS/NINDS NIH HHS/ -- P01 AG019724/AG/NIA NIH HHS/ -- R01 NS057553/NS/NINDS NIH HHS/ -- R01 NS079725/NS/NINDS NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2015 Sep 3;525(7567):129-33. doi: 10.1038/nature14974. Epub 2015 Aug 26.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell and Molecular Biology, St Jude Children's Research Hospital, Memphis, Tennessee 38105, USA. ; Department of Neurology, University of Massachusetts Medical School, Worcester, Massachusetts 01605, USA. ; Memory and Aging Center, Department of Neurology, University of California San Francisco, San Francisco, California 94158, USA. ; Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA. ; Department of Neuroscience, Mayo Clinic Florida, Jacksonville, Florida 32224, USA. ; Howard Hughes Medical Institute, Department of Cell and Molecular Biology, 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/26308899" target="_blank"〉PubMed〈/a〉

Description: Algorithms designed to identify canonical yeast prions predict that around 250 human proteins, including several RNA-binding proteins associated with neurodegenerative disease, harbour a distinctive prion-like domain (PrLD) enriched in uncharged polar amino acids and glycine. PrLDs in RNA-binding proteins are essential for the assembly of ribonucleoprotein granules. However, the interplay between human PrLD function and disease is not understood. Here we define pathogenic mutations in PrLDs of heterogeneous nuclear ribonucleoproteins (hnRNPs) A2B1 and A1 in families with inherited degeneration affecting muscle, brain, motor neuron and bone, and in one case of familial amyotrophic lateral sclerosis. Wild-type hnRNPA2 (the most abundant isoform of hnRNPA2B1) and hnRNPA1 show an intrinsic tendency to assemble into self-seeding fibrils, which is exacerbated by the disease mutations. Indeed, the pathogenic mutations strengthen a 'steric zipper' motif in the PrLD, which accelerates the formation of self-seeding fibrils that cross-seed polymerization of wild-type hnRNP. Notably, the disease mutations promote excess incorporation of hnRNPA2 and hnRNPA1 into stress granules and drive the formation of cytoplasmic inclusions in animal models that recapitulate the human pathology. Thus, dysregulated polymerization caused by a potent mutant steric zipper motif in a PrLD can initiate degenerative disease. Related proteins with PrLDs should therefore be considered candidates for initiating and perhaps propagating proteinopathies of muscle, brain, motor neuron and bone.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3756911/" 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/PMC3756911/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kim, Hong Joo -- Kim, Nam Chul -- Wang, Yong-Dong -- Scarborough, Emily A -- Moore, Jennifer -- Diaz, Zamia -- MacLea, Kyle S -- Freibaum, Brian -- Li, Songqing -- Molliex, Amandine -- Kanagaraj, Anderson P -- Carter, Robert -- Boylan, Kevin B -- Wojtas, Aleksandra M -- Rademakers, Rosa -- Pinkus, Jack L -- Greenberg, Steven A -- Trojanowski, John Q -- Traynor, Bryan J -- Smith, Bradley N -- Topp, Simon -- Gkazi, Athina-Soragia -- Miller, Jack -- Shaw, Christopher E -- Kottlors, Michael -- Kirschner, Janbernd -- Pestronk, Alan -- Li, Yun R -- Ford, Alice Flynn -- Gitler, Aaron D -- Benatar, Michael -- King, Oliver D -- Kimonis, Virginia E -- Ross, Eric D -- Weihl, Conrad C -- Shorter, James -- Taylor, J Paul -- 089701/Wellcome Trust/United Kingdom -- AG031867/AG/NIA NIH HHS/ -- AG032953/AG/NIA NIH HHS/ -- DP2OD002177/OD/NIH HHS/ -- G0900688/Medical Research Council/United Kingdom -- K02 AG042095/AG/NIA NIH HHS/ -- MC_G1000733/Medical Research Council/United Kingdom -- NS053825/NS/NINDS NIH HHS/ -- NS067354/NS/NINDS NIH HHS/ -- P01 AG032953/AG/NIA NIH HHS/ -- R01 AG031867/AG/NIA NIH HHS/ -- R01 NS053825/NS/NINDS NIH HHS/ -- England -- Nature. 2013 Mar 28;495(7442):467-73. doi: 10.1038/nature11922. Epub 2013 Mar 3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Developmental Neurobiology, St Jude Children's Research Hospital, Memphis, Tennessee 38120, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23455423" target="_blank"〉PubMed〈/a〉

Description: Many procedures in modern clinical medicine rely on the use of electronic implants in treating conditions that range from acute coronary events to traumatic injury. However, standard permanent electronic hardware acts as a nidus for infection: bacteria form biofilms along percutaneous wires, or seed haematogenously, with the potential to migrate within the body and to provoke immune-mediated pathological tissue reactions. The associated surgical retrieval procedures, meanwhile, subject patients to the distress associated with re-operation and expose them to additional complications. Here, we report materials, device architectures, integration strategies, and in vivo demonstrations in rats of implantable, multifunctional silicon sensors for the brain, for which all of the constituent materials naturally resorb via hydrolysis and/or metabolic action, eliminating the need for extraction. Continuous monitoring of intracranial pressure and temperature illustrates functionality essential to the treatment of traumatic brain injury; the measurement performance of our resorbable devices compares favourably with that of non-resorbable clinical standards. In our experiments, insulated percutaneous wires connect to an externally mounted, miniaturized wireless potentiostat for data transmission. In a separate set-up, we connect a sensor to an implanted (but only partially resorbable) data-communication system, proving the principle that there is no need for any percutaneous wiring. The devices can be adapted to sense fluid flow, motion, pH or thermal characteristics, in formats that are compatible with the body's abdomen and extremities, as well as the deep brain, suggesting that the sensors might meet many needs in clinical medicine.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kang, Seung-Kyun -- Murphy, Rory K J -- Hwang, Suk-Won -- Lee, Seung Min -- Harburg, Daniel V -- Krueger, Neil A -- Shin, Jiho -- Gamble, Paul -- Cheng, Huanyu -- Yu, Sooyoun -- Liu, Zhuangjian -- McCall, Jordan G -- Stephen, Manu -- Ying, Hanze -- Kim, Jeonghyun -- Park, Gayoung -- Webb, R Chad -- Lee, Chi Hwan -- Chung, Sangjin -- Wie, Dae Seung -- Gujar, Amit D -- Vemulapalli, Bharat -- Kim, Albert H -- Lee, Kyung-Mi -- Cheng, Jianjun -- Huang, Younggang -- Lee, Sang Hoon -- Braun, Paul V -- Ray, Wilson Z -- Rogers, John A -- F31MH101956/MH/NIMH NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2016 Feb 4;530(7588):71-6. doi: 10.1038/nature16492. Epub 2016 Jan 18.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA. ; Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA. ; Department of Neurological Surgery, Washington University School of Medicine, St Louis, Missouri 63110, USA. ; KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 136-701, Republic of Korea. ; Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA. ; Department of Engineering Science and Mechanics, Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802, USA. ; Institute of High Performance Computing, Singapore 138632, Singapore. ; Department of Anesthesiology, Washington University School of Medicine, St Louis, Missouri 63110, USA. ; Department of Biomicrosystem Technology, Korea University, Seoul 136-701, South Korea. ; Department of Biochemistry and Molecular Biology, Korea University College of Medicine, Seoul 136-713, South Korea. ; Weldon School of Biomedical Engineering, School of Mechanical Engineering, The Center for Implantable Devices, Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907, USA. ; School of Mechanical Engineering, Purdue University, West Lafayette, Indiana 47907, USA. ; Department of Mechanical Engineering, Civil and Environmental Engineering, Materials Science and Engineering, and Skin Disease Research Center, Northwestern University, Evanston, Illinois 60208, USA. ; Department of Biomedical Engineering, College of Health Science, Korea University, Seoul 136-703, South Korea. ; Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26779949" target="_blank"〉PubMed〈/a〉

Description: The NAD-dependent deacetylase Sir2 was initially identified as a mediator of replicative lifespan in budding yeast and was subsequently shown to modulate longevity in worms and flies. Its mammalian homologue, SIRT1, seems to have evolved complex systemic roles in cardiac function, DNA repair and genomic stability. Recent studies suggest a functional relevance of SIRT1 in normal brain physiology and neurological disorders. However, it is unknown if SIRT1 has a role in higher-order brain functions. We report that SIRT1 modulates synaptic plasticity and memory formation via a microRNA-mediated mechanism. Activation of SIRT1 enhances, whereas its loss-of-function impairs, synaptic plasticity. Surprisingly, these effects were mediated via post-transcriptional regulation of cAMP response binding protein (CREB) expression by a brain-specific microRNA, miR-134. SIRT1 normally functions to limit expression of miR-134 via a repressor complex containing the transcription factor YY1, and unchecked miR-134 expression following SIRT1 deficiency results in the downregulated expression of CREB and brain-derived neurotrophic factor (BDNF), thereby impairing synaptic plasticity. These findings demonstrate a new role for SIRT1 in cognition and a previously unknown microRNA-based mechanism by which SIRT1 regulates these processes. Furthermore, these results describe a separate branch of SIRT1 signalling, in which SIRT1 has a direct role in regulating normal brain function in a manner that is disparate from its cell survival functions, demonstrating its value as a potential therapeutic target for the treatment of central nervous system disorders.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2928875/" 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/PMC2928875/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gao, Jun -- Wang, Wen-Yuan -- Mao, Ying-Wei -- Graff, Johannes -- Guan, Ji-Song -- Pan, Ling -- Mak, Gloria -- Kim, Dohoon -- Su, Susan C -- Tsai, Li-Huei -- P01 AG027916/AG/NIA NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2010 Aug 26;466(7310):1105-9. doi: 10.1038/nature09271. Epub 2010 Jul 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Picower Institute for Learning and Memory, Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20622856" target="_blank"〉PubMed〈/a〉

Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kim, Alison M -- Tingen, Candace M -- Woodruff, Teresa K -- England -- Nature. 2010 Jun 10;465(7299):688-9. doi: 10.1038/465688a.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20535184" target="_blank"〉PubMed〈/a〉

Description: Monozygotic or 'identical' twins have been widely studied to dissect the relative contributions of genetics and environment in human diseases. In multiple sclerosis (MS), an autoimmune demyelinating disease and common cause of neurodegeneration and disability in young adults, disease discordance in monozygotic twins has been interpreted to indicate environmental importance in its pathogenesis. However, genetic and epigenetic differences between monozygotic twins have been described, challenging the accepted experimental model in disambiguating the effects of nature and nurture. Here we report the genome sequences of one MS-discordant monozygotic twin pair, and messenger RNA transcriptome and epigenome sequences of CD4(+) lymphocytes from three MS-discordant, monozygotic twin pairs. No reproducible differences were detected between co-twins among approximately 3.6 million single nucleotide polymorphisms (SNPs) or approximately 0.2 million insertion-deletion polymorphisms. Nor were any reproducible differences observed between siblings of the three twin pairs in HLA haplotypes, confirmed MS-susceptibility SNPs, copy number variations, mRNA and genomic SNP and insertion-deletion genotypes, or the expression of approximately 19,000 genes in CD4(+) T cells. Only 2 to 176 differences in the methylation of approximately 2 million CpG dinucleotides were detected between siblings of the three twin pairs, in contrast to approximately 800 methylation differences between T cells of unrelated individuals and several thousand differences between tissues or between normal and cancerous tissues. In the first systematic effort to estimate sequence variation among monozygotic co-twins, we did not find evidence for genetic, epigenetic or transcriptome differences that explained disease discordance. These are the first, to our knowledge, female, twin and autoimmune disease individual genome sequences reported.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2862593/" 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/PMC2862593/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baranzini, Sergio E -- Mudge, Joann -- van Velkinburgh, Jennifer C -- Khankhanian, Pouya -- Khrebtukova, Irina -- Miller, Neil A -- Zhang, Lu -- Farmer, Andrew D -- Bell, Callum J -- Kim, Ryan W -- May, Gregory D -- Woodward, Jimmy E -- Caillier, Stacy J -- McElroy, Joseph P -- Gomez, Refujia -- Pando, Marcelo J -- Clendenen, Leonda E -- Ganusova, Elena E -- Schilkey, Faye D -- Ramaraj, Thiruvarangan -- Khan, Omar A -- Huntley, Jim J -- Luo, Shujun -- Kwok, Pui-Yan -- Wu, Thomas D -- Schroth, Gary P -- Oksenberg, Jorge R -- Hauser, Stephen L -- Kingsmore, Stephen F -- P20 RR016480/RR/NCRR NIH HHS/ -- P20 RR016480-09/RR/NCRR NIH HHS/ -- R01 NS026799/NS/NINDS NIH HHS/ -- R01 NS026799-20A1/NS/NINDS NIH HHS/ -- R01 NS046297/NS/NINDS NIH HHS/ -- R01 NS046297-06/NS/NINDS NIH HHS/ -- R01NS26799/NS/NINDS NIH HHS/ -- R01NS46297/NS/NINDS NIH HHS/ -- RR016480/RR/NCRR NIH HHS/ -- U01 AI066569/AI/NIAID NIH HHS/ -- U01 AI066569-05/AI/NIAID NIH HHS/ -- U19 HD077693/HD/NICHD NIH HHS/ -- England -- Nature. 2010 Apr 29;464(7293):1351-6. doi: 10.1038/nature08990.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology, University of California at San Francisco, San Francisco, California 94143, USA. sebaran@cgl.ucsf.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20428171" target="_blank"〉PubMed〈/a〉

Description: Reprogramming of somatic cells is a valuable tool to understand the mechanisms of regaining pluripotency and further opens up the possibility of generating patient-specific pluripotent stem cells. Reprogramming of mouse and human somatic cells into pluripotent stem cells, designated as induced pluripotent stem (iPS) cells, has been possible with the expression of the transcription factor quartet Oct4 (also known as Pou5f1), Sox2, c-Myc and Klf4 (refs 1-11). Considering that ectopic expression of c-Myc causes tumorigenicity in offspring and that retroviruses themselves can cause insertional mutagenesis, the generation of iPS cells with a minimal number of factors may hasten the clinical application of this approach. Here we show that adult mouse neural stem cells express higher endogenous levels of Sox2 and c-Myc than embryonic stem cells, and that exogenous Oct4 together with either Klf4 or c-Myc is sufficient to generate iPS cells from neural stem cells. These two-factor iPS cells are similar to embryonic stem cells at the molecular level, contribute to development of the germ line, and form chimaeras. We propose that, in inducing pluripotency, the number of reprogramming factors can be reduced when using somatic cells that endogenously express appropriate levels of complementing factors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kim, Jeong Beom -- Zaehres, Holm -- Wu, Guangming -- Gentile, Luca -- Ko, Kinarm -- Sebastiano, Vittorio -- Arauzo-Bravo, Marcos J -- Ruau, David -- Han, Dong Wook -- Zenke, Martin -- Scholer, Hans R -- England -- Nature. 2008 Jul 31;454(7204):646-50. doi: 10.1038/nature07061. Epub 2008 Jun 29.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell and Developmental Biology, Max Planck Institute for Molecular Biomedicine, Rontgenstrasse 20, 48149 Munster, NRW, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18594515" target="_blank"〉PubMed〈/a〉