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  • Articles  (118)
  • Cell Line  (55)
  • Protein Structure, Tertiary  (40)
  • Cells, Cultured  (39)
  • Nature Publishing Group (NPG)  (118)
  • 2010-2014  (118)
  • 2014  (47)
  • 2010  (71)
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  • Articles  (118)
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  • 2010-2014  (118)
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  • 1
    Publication Date: 2014-03-29
    Description: Regulated transcription controls the diversity, developmental pathways and spatial organization of the hundreds of cell types that make up a mammal. Using single-molecule cDNA sequencing, we mapped transcription start sites (TSSs) and their usage in human and mouse primary cells, cell lines and tissues to produce a comprehensive overview of mammalian gene expression across the human body. We find that few genes are truly 'housekeeping', whereas many mammalian promoters are composite entities composed of several closely separated TSSs, with independent cell-type-specific expression profiles. TSSs specific to different cell types evolve at different rates, whereas promoters of broadly expressed genes are the most conserved. Promoter-based expression analysis reveals key transcription factors defining cell states and links them to binding-site motifs. The functions of identified novel transcripts can be predicted by coexpression and sample ontology enrichment analyses. The functional annotation of the mammalian genome 5 (FANTOM5) project provides comprehensive expression profiles and functional annotation of mammalian cell-type-specific transcriptomes with wide applications in biomedical research.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4529748/" 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/PMC4529748/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉FANTOM Consortium and the RIKEN PMI and CLST (DGT) -- Forrest, Alistair R R -- Kawaji, Hideya -- Rehli, Michael -- Baillie, J Kenneth -- de Hoon, Michiel J L -- Haberle, Vanja -- Lassmann, Timo -- Kulakovskiy, Ivan V -- Lizio, Marina -- Itoh, Masayoshi -- Andersson, Robin -- Mungall, Christopher J -- Meehan, Terrence F -- Schmeier, Sebastian -- Bertin, Nicolas -- Jorgensen, Mette -- Dimont, Emmanuel -- Arner, Erik -- Schmidl, Christian -- Schaefer, Ulf -- Medvedeva, Yulia A -- Plessy, Charles -- Vitezic, Morana -- Severin, Jessica -- Semple, Colin A -- Ishizu, Yuri -- Young, Robert S -- Francescatto, Margherita -- Alam, Intikhab -- Albanese, Davide -- Altschuler, Gabriel M -- Arakawa, Takahiro -- Archer, John A C -- Arner, Peter -- Babina, Magda -- Rennie, Sarah -- Balwierz, Piotr J -- Beckhouse, Anthony G -- Pradhan-Bhatt, Swati -- Blake, Judith A -- Blumenthal, Antje -- Bodega, Beatrice -- Bonetti, Alessandro -- Briggs, James -- Brombacher, Frank -- Burroughs, A Maxwell -- Califano, Andrea -- Cannistraci, Carlo V -- Carbajo, Daniel -- Chen, Yun -- Chierici, Marco -- Ciani, Yari -- Clevers, Hans C -- Dalla, Emiliano -- Davis, Carrie A -- Detmar, Michael -- Diehl, Alexander D -- Dohi, Taeko -- Drablos, Finn -- Edge, Albert S B -- Edinger, Matthias -- Ekwall, Karl -- Endoh, Mitsuhiro -- Enomoto, Hideki -- Fagiolini, Michela -- Fairbairn, Lynsey -- Fang, Hai -- Farach-Carson, Mary C -- Faulkner, Geoffrey J -- Favorov, Alexander V -- Fisher, Malcolm E -- Frith, Martin C -- Fujita, Rie -- Fukuda, Shiro -- Furlanello, Cesare -- Furino, Masaaki -- Furusawa, Jun-ichi -- Geijtenbeek, Teunis B -- Gibson, Andrew P -- Gingeras, Thomas -- Goldowitz, Daniel -- Gough, Julian -- Guhl, Sven -- Guler, Reto -- Gustincich, Stefano -- Ha, Thomas J -- Hamaguchi, Masahide -- Hara, Mitsuko -- Harbers, Matthias -- Harshbarger, Jayson -- Hasegawa, Akira -- Hasegawa, Yuki -- Hashimoto, Takehiro -- Herlyn, Meenhard -- Hitchens, Kelly J -- Ho Sui, Shannan J -- Hofmann, Oliver M -- Hoof, Ilka -- Hori, Furni -- Huminiecki, Lukasz -- Iida, Kei -- Ikawa, Tomokatsu -- Jankovic, Boris R -- Jia, Hui -- Joshi, Anagha -- Jurman, Giuseppe -- Kaczkowski, Bogumil -- Kai, Chieko -- Kaida, Kaoru -- Kaiho, Ai -- Kajiyama, Kazuhiro -- Kanamori-Katayama, Mutsumi -- Kasianov, Artem S -- Kasukawa, Takeya -- Katayama, Shintaro -- Kato, Sachi -- Kawaguchi, Shuji -- Kawamoto, Hiroshi -- Kawamura, Yuki I -- Kawashima, Tsugumi -- Kempfle, Judith S -- Kenna, Tony J -- Kere, Juha -- Khachigian, Levon M -- Kitamura, Toshio -- Klinken, S Peter -- Knox, Alan J -- Kojima, Miki -- Kojima, Soichi -- Kondo, Naoto -- Koseki, Haruhiko -- Koyasu, Shigeo -- Krampitz, Sarah -- Kubosaki, Atsutaka -- Kwon, Andrew T -- Laros, Jeroen F J -- Lee, Weonju -- Lennartsson, Andreas -- Li, Kang -- Lilje, Berit -- Lipovich, Leonard -- Mackay-Sim, Alan -- Manabe, Ri-ichiroh -- Mar, Jessica C -- Marchand, Benoit -- Mathelier, Anthony -- Mejhert, Niklas -- Meynert, Alison -- Mizuno, Yosuke -- de Lima Morais, David A -- Morikawa, Hiromasa -- Morimoto, Mitsuru -- Moro, Kazuyo -- Motakis, Efthymios -- Motohashi, Hozumi -- Mummery, Christine L -- Murata, Mitsuyoshi -- Nagao-Sato, Sayaka -- Nakachi, Yutaka -- Nakahara, Fumio -- Nakamura, Toshiyuki -- Nakamura, Yukio -- Nakazato, Kenichi -- van Nimwegen, Erik -- Ninomiya, Noriko -- Nishiyori, Hiromi -- Noma, Shohei -- Noazaki, Tadasuke -- Ogishima, Soichi -- Ohkura, Naganari -- Ohimiya, Hiroko -- Ohno, Hiroshi -- Ohshima, Mitsuhiro -- Okada-Hatakeyama, Mariko -- Okazaki, Yasushi -- Orlando, Valerio -- Ovchinnikov, Dmitry A -- Pain, Arnab -- Passier, Robert -- Patrikakis, Margaret -- Persson, Helena -- Piazza, Silvano -- Prendergast, James G D -- Rackham, Owen J L -- Ramilowski, Jordan A -- Rashid, Mamoon -- Ravasi, Timothy -- Rizzu, Patrizia -- Roncador, Marco -- Roy, Sugata -- Rye, Morten B -- Saijyo, Eri -- Sajantila, Antti -- Saka, Akiko -- Sakaguchi, Shimon -- Sakai, Mizuho -- Sato, Hiroki -- Savvi, Suzana -- Saxena, Alka -- Schneider, Claudio -- Schultes, Erik A -- Schulze-Tanzil, Gundula G -- Schwegmann, Anita -- Sengstag, Thierry -- Sheng, Guojun -- Shimoji, Hisashi -- Shimoni, Yishai -- Shin, Jay W -- Simon, Christophe -- Sugiyama, Daisuke -- Sugiyama, Takaai -- Suzuki, Masanori -- Suzuki, Naoko -- Swoboda, Rolf K -- 't Hoen, Peter A C -- Tagami, Michihira -- Takahashi, Naoko -- Takai, Jun -- Tanaka, Hiroshi -- Tatsukawa, Hideki -- Tatum, Zuotian -- Thompson, Mark -- Toyodo, Hiroo -- Toyoda, Tetsuro -- Valen, Elvind -- van de Wetering, Marc -- van den Berg, Linda M -- Verado, Roberto -- Vijayan, Dipti -- Vorontsov, Ilya E -- Wasserman, Wyeth W -- Watanabe, Shoko -- Wells, Christine A -- Winteringham, Louise N -- Wolvetang, Ernst -- Wood, Emily J -- Yamaguchi, Yoko -- Yamamoto, Masayuki -- Yoneda, Misako -- Yonekura, Yohei -- Yoshida, Shigehiro -- Zabierowski, Susan E -- Zhang, Peter G -- Zhao, Xiaobei -- Zucchelli, Silvia -- Summers, Kim M -- Suzuki, Harukazu -- Daub, Carsten O -- Kawai, Jun -- Heutink, Peter -- Hide, Winston -- Freeman, Tom C -- Lenhard, Boris -- Bajic, Vladimir B -- Taylor, Martin S -- Makeev, Vsevolod J -- Sandelin, Albin -- Hume, David A -- Carninci, Piero -- Hayashizaki, Yoshihide -- BB/F003722/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- BB/G022771/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- BB/I001107/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- MC_PC_U127597124/Medical Research Council/United Kingdom -- MC_UP_1102/1/Medical Research Council/United Kingdom -- R01 DE022969/DE/NIDCR NIH HHS/ -- R01 GM084875/GM/NIGMS NIH HHS/ -- England -- Nature. 2014 Mar 27;507(7493):462-70. doi: 10.1038/nature13182.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24670764" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Atlases as Topic ; Cell Line ; Cells, Cultured ; Cluster Analysis ; Conserved Sequence/genetics ; Gene Expression Regulation/genetics ; Gene Regulatory Networks/genetics ; Genes, Essential/genetics ; Genome/genetics ; Humans ; Mice ; *Molecular Sequence Annotation ; Open Reading Frames/genetics ; Organ Specificity ; Promoter Regions, Genetic/*genetics ; RNA, Messenger/analysis/genetics ; Transcription Factors/metabolism ; Transcription Initiation Site ; Transcription, Genetic/genetics ; Transcriptome/*genetics
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 2
    Publication Date: 2014-07-22
    Description: Photosynthesis, a process catalysed by plants, algae and cyanobacteria converts sunlight to energy thus sustaining all higher life on Earth. Two large membrane protein complexes, photosystem I and II (PSI and PSII), act in series to catalyse the light-driven reactions in photosynthesis. PSII catalyses the light-driven water splitting process, which maintains the Earth's oxygenic atmosphere. In this process, the oxygen-evolving complex (OEC) of PSII cycles through five states, S0 to S4, in which four electrons are sequentially extracted from the OEC in four light-driven charge-separation events. Here we describe time resolved experiments on PSII nano/microcrystals from Thermosynechococcus elongatus performed with the recently developed technique of serial femtosecond crystallography. Structures have been determined from PSII in the dark S1 state and after double laser excitation (putative S3 state) at 5 and 5.5 A resolution, respectively. The results provide evidence that PSII undergoes significant conformational changes at the electron acceptor side and at the Mn4CaO5 core of the OEC. These include an elongation of the metal cluster, accompanied by changes in the protein environment, which could allow for binding of the second substrate water molecule between the more distant protruding Mn (referred to as the 'dangler' Mn) and the Mn3CaOx cubane in the S2 to S3 transition, as predicted by spectroscopic and computational studies. This work shows the great potential for time-resolved serial femtosecond crystallography for investigation of catalytic processes in biomolecules.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kupitz, Christopher -- Basu, Shibom -- Grotjohann, Ingo -- Fromme, Raimund -- Zatsepin, Nadia A -- Rendek, Kimberly N -- Hunter, Mark S -- Shoeman, Robert L -- White, Thomas A -- Wang, Dingjie -- James, Daniel -- Yang, Jay-How -- Cobb, Danielle E -- Reeder, Brenda -- Sierra, Raymond G -- Liu, Haiguang -- Barty, Anton -- Aquila, Andrew L -- Deponte, Daniel -- Kirian, Richard A -- Bari, Sadia -- Bergkamp, Jesse J -- Beyerlein, Kenneth R -- Bogan, Michael J -- Caleman, Carl -- Chao, Tzu-Chiao -- Conrad, Chelsie E -- Davis, Katherine M -- Fleckenstein, Holger -- Galli, Lorenzo -- Hau-Riege, Stefan P -- Kassemeyer, Stephan -- Laksmono, Hartawan -- Liang, Mengning -- Lomb, Lukas -- Marchesini, Stefano -- Martin, Andrew V -- Messerschmidt, Marc -- Milathianaki, Despina -- Nass, Karol -- Ros, Alexandra -- Roy-Chowdhury, Shatabdi -- Schmidt, Kevin -- Seibert, Marvin -- Steinbrener, Jan -- Stellato, Francesco -- Yan, Lifen -- Yoon, Chunhong -- Moore, Thomas A -- Moore, Ana L -- Pushkar, Yulia -- Williams, Garth J -- Boutet, Sebastien -- Doak, R Bruce -- Weierstall, Uwe -- Frank, Matthias -- Chapman, Henry N -- Spence, John C H -- Fromme, Petra -- 1R01GM095583/GM/NIGMS NIH HHS/ -- R01 GM095583/GM/NIGMS NIH HHS/ -- England -- Nature. 2014 Sep 11;513(7517):261-5. doi: 10.1038/nature13453. Epub 2014 Jul 9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287-1604, USA [2]. ; Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287-1604, USA. ; Department of Physics, Arizona State University, Tempe, Arizona 85287, USA. ; 1] Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287-1604, USA [2] Lawrence Livermore National Laboratory, Livermore, California 94550, USA. ; Max-Planck-Institut fur medizinische Forschung, Jahnstrasse 29, 69120 Heidelberg, Germany. ; Center for Free-Electron Laser Science, DESY, Notkestrasse 85, 22607 Hamburg, Germany. ; Stanford PULSE Institute, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA. ; 1] Center for Free-Electron Laser Science, DESY, Notkestrasse 85, 22607 Hamburg, Germany [2] European XFEL GmbH, Notkestrasse 85, 22607 Hamburg, Germany. ; 1] Center for Free-Electron Laser Science, DESY, Notkestrasse 85, 22607 Hamburg, Germany [2] Linac Coherent Light Source, Stanford Linear Accelerator Center (SLAC) National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA. ; 1] Department of Physics, Arizona State University, Tempe, Arizona 85287, USA [2] Center for Free-Electron Laser Science, DESY, Notkestrasse 85, 22607 Hamburg, Germany. ; 1] Max Planck Advanced Study Group, Center for Free-Electron Laser Science (CFEL), Notkestrasse 85, 22607 Hamburg, Germany [2] Max-Planck-Institut fur Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany. ; 1] Center for Free-Electron Laser Science, DESY, Notkestrasse 85, 22607 Hamburg, Germany [2] Department of Physics and Astronomy, Uppsala University, Regementsvagen 1, SE-752 37 Uppsala, Sweden. ; 1] Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287-1604, USA [2] University of Regina, 3737 Wascana Pkwy Regina, Saskatchewan S4S 0A2, Canada. ; Department of Physics, Purdue University, 525 Northwestern Avenue, West Lafayette, Indiana 47907, USA. ; 1] Center for Free-Electron Laser Science, DESY, Notkestrasse 85, 22607 Hamburg, Germany [2] University of Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany. ; Lawrence Livermore National Laboratory, Livermore, California 94550, USA. ; 1] Max-Planck-Institut fur medizinische Forschung, Jahnstrasse 29, 69120 Heidelberg, Germany [2] Max Planck Advanced Study Group, Center for Free-Electron Laser Science (CFEL), Notkestrasse 85, 22607 Hamburg, Germany. ; Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA. ; 1] Center for Free-Electron Laser Science, DESY, Notkestrasse 85, 22607 Hamburg, Germany [2] Department ARC Centre of Excellence for Coherent X-ray Science, Department of Physics, University of Melbourne, Parkville VIC 3010, Australia. ; Linac Coherent Light Source, Stanford Linear Accelerator Center (SLAC) National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA. ; 1] Max-Planck-Institut fur medizinische Forschung, Jahnstrasse 29, 69120 Heidelberg, Germany [2] Center for Free-Electron Laser Science, DESY, Notkestrasse 85, 22607 Hamburg, Germany [3] University of Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany. ; 1] Linac Coherent Light Source, Stanford Linear Accelerator Center (SLAC) National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA [2] Uppsala University, Sankt Olofsgatan 10B, 753 12 Uppsala, Sweden. ; 1] Center for Free-Electron Laser Science, DESY, Notkestrasse 85, 22607 Hamburg, Germany [2] University of Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany [3] Center for Ultrafast Imaging, Luruper Chaussee 149, 22761 Hamburg, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25043005" target="_blank"〉PubMed〈/a〉
    Keywords: *Crystallography, X-Ray ; Cyanobacteria/*chemistry ; *Models, Molecular ; Photosystem II Protein Complex/*chemistry ; Protein Structure, Tertiary
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    Electronic ISSN: 1476-4687
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  • 3
    Publication Date: 2010-12-24
    Description: Impulsivity, describing action without foresight, is an important feature of several psychiatric diseases, suicidality and violent behaviour. The complex origins of impulsivity hinder identification of the genes influencing it and the diseases with which it is associated. Here we perform exon-focused sequencing of impulsive individuals in a founder population, targeting fourteen genes belonging to the serotonin and dopamine domain. A stop codon in HTR2B was identified that is common (minor allele frequency 〉 1%) but exclusive to Finnish people. Expression of the gene in the human brain was assessed, as well as the molecular functionality of the stop codon, which was associated with psychiatric diseases marked by impulsivity in both population and family-based analyses. Knockout of Htr2b increased impulsive behaviours in mice, indicative of predictive validity. Our study shows the potential for identifying and tracing effects of rare alleles in complex behavioural phenotypes using founder populations, and indicates a role for HTR2B in impulsivity.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3183507/" 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/PMC3183507/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bevilacqua, Laura -- Doly, Stephane -- Kaprio, Jaakko -- Yuan, Qiaoping -- Tikkanen, Roope -- Paunio, Tiina -- Zhou, Zhifeng -- Wedenoja, Juho -- Maroteaux, Luc -- Diaz, Silvina -- Belmer, Arnaud -- Hodgkinson, Colin A -- Dell'osso, Liliana -- Suvisaari, Jaana -- Coccaro, Emil -- Rose, Richard J -- Peltonen, Leena -- Virkkunen, Matti -- Goldman, David -- AA-09203/AA/NIAAA NIH HHS/ -- AA-12502/AA/NIAAA NIH HHS/ -- Z01 AA000301-09/Intramural NIH HHS/ -- Z01 AA000301-10/Intramural NIH HHS/ -- Z99 AA999999/Intramural NIH HHS/ -- England -- Nature. 2010 Dec 23;468(7327):1061-6. doi: 10.1038/nature09629.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Neurogenetics, National Institute on Alcohol Abuse and Alcoholism, NIH, Rockville, Maryland 20852, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21179162" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/metabolism ; Case-Control Studies ; Cell Line ; Female ; Finland ; Founder Effect ; Gene Expression Regulation ; Gene Knockout Techniques ; Genotype ; Humans ; Impulsive Behavior/*genetics ; Male ; Mental Disorders/genetics ; Mice ; Mice, 129 Strain ; Mice, Knockout ; Pedigree ; Polymorphism, Single Nucleotide/genetics ; Receptor, Serotonin, 5-HT2B/*genetics/*metabolism ; Testosterone/blood/cerebrospinal fluid
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  • 4
    Publication Date: 2014-02-21
    Description: Members of the nuclear factor-kappaB (NF-kappaB) family of transcriptional regulators are central mediators of the cellular inflammatory response. Although constitutive NF-kappaB signalling is present in most human tumours, mutations in pathway members are rare, complicating efforts to understand and block aberrant NF-kappaB activity in cancer. Here we show that more than two-thirds of supratentorial ependymomas contain oncogenic fusions between RELA, the principal effector of canonical NF-kappaB signalling, and an uncharacterized gene, C11orf95. In each case, C11orf95-RELA fusions resulted from chromothripsis involving chromosome 11q13.1. C11orf95-RELA fusion proteins translocated spontaneously to the nucleus to activate NF-kappaB target genes, and rapidly transformed neural stem cells--the cell of origin of ependymoma--to form these tumours in mice. Our data identify a highly recurrent genetic alteration of RELA in human cancer, and the C11orf95-RELA fusion protein as a potential therapeutic target in supratentorial ependymoma.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4050669/" 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/PMC4050669/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Parker, Matthew -- Mohankumar, Kumarasamypet M -- Punchihewa, Chandanamali -- Weinlich, Ricardo -- Dalton, James D -- Li, Yongjin -- Lee, Ryan -- Tatevossian, Ruth G -- Phoenix, Timothy N -- Thiruvenkatam, Radhika -- White, Elsie -- Tang, Bo -- Orisme, Wilda -- Gupta, Kirti -- Rusch, Michael -- Chen, Xiang -- Li, Yuxin -- Nagahawhatte, Panduka -- Hedlund, Erin -- Finkelstein, David -- Wu, Gang -- Shurtleff, Sheila -- Easton, John -- Boggs, Kristy -- Yergeau, Donald -- Vadodaria, Bhavin -- Mulder, Heather L -- Becksfort, Jared -- Gupta, Pankaj -- Huether, Robert -- Ma, Jing -- Song, Guangchun -- Gajjar, Amar -- Merchant, Thomas -- Boop, Frederick -- Smith, Amy A -- Ding, Li -- Lu, Charles -- Ochoa, Kerri -- Zhao, David -- Fulton, Robert S -- Fulton, Lucinda L -- Mardis, Elaine R -- Wilson, Richard K -- Downing, James R -- Green, Douglas R -- Zhang, Jinghui -- Ellison, David W -- Gilbertson, Richard J -- P01 CA096832/CA/NCI NIH HHS/ -- P01CA96832/CA/NCI NIH HHS/ -- P30 CA021765/CA/NCI NIH HHS/ -- P30CA021765/CA/NCI NIH HHS/ -- R01 CA129541/CA/NCI NIH HHS/ -- R01CA129541/CA/NCI NIH HHS/ -- England -- Nature. 2014 Feb 27;506(7489):451-5. doi: 10.1038/nature13109. Epub 2014 Feb 19.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] St. Jude Children's Research Hospital - Washington University Pediatric Cancer Genome Project, Memphis, Tennessee 38105, USA [2] Department of Computational Biology and Bioinformatics, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA [3]. ; 1] Department of Developmental Neurobiology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA [2]. ; 1] Department of Pathology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA [2]. ; 1] Department of Immunology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA [2]. ; 1] St. Jude Children's Research Hospital - Washington University Pediatric Cancer Genome Project, Memphis, Tennessee 38105, USA [2] Department of Pathology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA. ; 1] St. Jude Children's Research Hospital - Washington University Pediatric Cancer Genome Project, Memphis, Tennessee 38105, USA [2] Department of Computational Biology and Bioinformatics, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA. ; Department of Pathology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA. ; Department of Developmental Neurobiology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA. ; Department of Computational Biology and Bioinformatics, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA. ; 1] Department of Computational Biology and Bioinformatics, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA [2] Structural Biology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA. ; St. Jude Children's Research Hospital - Washington University Pediatric Cancer Genome Project, Memphis, Tennessee 38105, USA. ; Structural Biology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA. ; 1] St. Jude Children's Research Hospital - Washington University Pediatric Cancer Genome Project, Memphis, Tennessee 38105, USA [2] Department of Oncology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA. ; Department of Radiological Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA. ; Department of Surgery, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA. ; MD Anderson Cancer Center Orlando, Pediatric Hematology/Oncology, 92 West Miller MP 318, Orlando, Florida 32806, USA. ; 1] St. Jude Children's Research Hospital - Washington University Pediatric Cancer Genome Project, Memphis, Tennessee 38105, USA [2] The Genome Institute, Washington University School of Medicine in St Louis, St Louis, Missouri 63108, USA [3] Department of Genetics, Washington University School of Medicine in St Louis, St Louis, Missouri 63108, USA. ; 1] St. Jude Children's Research Hospital - Washington University Pediatric Cancer Genome Project, Memphis, Tennessee 38105, USA [2] The Genome Institute, Washington University School of Medicine in St Louis, St Louis, Missouri 63108, USA. ; 1] St. Jude Children's Research Hospital - Washington University Pediatric Cancer Genome Project, Memphis, Tennessee 38105, USA [2] The Genome Institute, Washington University School of Medicine in St Louis, St Louis, Missouri 63108, USA [3] Department of Genetics, Washington University School of Medicine in St Louis, St Louis, Missouri 63108, USA [4] Siteman Cancer Center, Washington University School of Medicine in St Louis, St Louis, Missouri 63108, USA. ; Department of Immunology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA. ; 1] St. Jude Children's Research Hospital - Washington University Pediatric Cancer Genome Project, Memphis, Tennessee 38105, USA [2] Department of Developmental Neurobiology, 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/24553141" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing/genetics/metabolism ; Animals ; Base Sequence ; Brain Neoplasms/genetics/metabolism/pathology ; Cell Line ; Cell Nucleus/metabolism ; *Cell Transformation, Neoplastic/genetics ; Chromosomes, Human, Pair 11/genetics ; Ependymoma/*genetics/*metabolism/pathology ; Female ; Humans ; Mice ; Models, Genetic ; Molecular Sequence Data ; NF-kappa B/genetics/*metabolism ; Neural Stem Cells/metabolism/pathology ; Oncogene Proteins, Fusion/genetics/metabolism ; Phosphoproteins/genetics/metabolism ; Proteins/genetics/*metabolism ; *Signal Transduction ; Transcription Factor RelA/genetics/*metabolism ; Translocation, Genetic/genetics
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  • 5
    Publication Date: 2010-08-20
    Description: Epigenetic modifications must underlie lineage-specific differentiation as terminally differentiated cells express tissue-specific genes, but their DNA sequence is unchanged. Haematopoiesis provides a well-defined model to study epigenetic modifications during cell-fate decisions, as multipotent progenitors (MPPs) differentiate into progressively restricted myeloid or lymphoid progenitors. Although DNA methylation is critical for myeloid versus lymphoid differentiation, as demonstrated by the myeloerythroid bias in Dnmt1 hypomorphs, a comprehensive DNA methylation map of haematopoietic progenitors, or of any multipotent/oligopotent lineage, does not exist. Here we examined 4.6 million CpG sites throughout the genome for MPPs, common lymphoid progenitors (CLPs), common myeloid progenitors (CMPs), granulocyte/macrophage progenitors (GMPs), and thymocyte progenitors (DN1, DN2, DN3). Marked epigenetic plasticity accompanied both lymphoid and myeloid restriction. Myeloid commitment involved less global DNA methylation than lymphoid commitment, supported functionally by myeloid skewing of progenitors following treatment with a DNA methyltransferase inhibitor. Differential DNA methylation correlated with gene expression more strongly at CpG island shores than CpG islands. Many examples of genes and pathways not previously known to be involved in choice between lymphoid/myeloid differentiation have been identified, such as Arl4c and Jdp2. Several transcription factors, including Meis1, were methylated and silenced during differentiation, indicating a role in maintaining an undifferentiated state. Additionally, epigenetic modification of modifiers of the epigenome seems to be important in haematopoietic differentiation. Our results directly demonstrate that modulation of DNA methylation occurs during lineage-specific differentiation and defines a comprehensive map of the methylation and transcriptional changes that accompany myeloid versus lymphoid fate decisions.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2956609/" 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/PMC2956609/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ji, Hong -- Ehrlich, Lauren I R -- Seita, Jun -- Murakami, Peter -- Doi, Akiko -- Lindau, Paul -- Lee, Hwajin -- Aryee, Martin J -- Irizarry, Rafael A -- Kim, Kitai -- Rossi, Derrick J -- Inlay, Matthew A -- Serwold, Thomas -- Karsunky, Holger -- Ho, Lena -- Daley, George Q -- Weissman, Irving L -- Feinberg, Andrew P -- CA09151/CA/NCI NIH HHS/ -- F32 AI058521/AI/NIAID NIH HHS/ -- F32 AI058521-02/AI/NIAID NIH HHS/ -- F32AI058521/AI/NIAID NIH HHS/ -- P50 HG003233/HG/NHGRI NIH HHS/ -- P50 HG003233-07/HG/NHGRI NIH HHS/ -- P50 HG003233-08/HG/NHGRI NIH HHS/ -- P50HG003233/HG/NHGRI NIH HHS/ -- R00 AG029760/AG/NIA NIH HHS/ -- R00 AG029760-04/AG/NIA NIH HHS/ -- R00AGO29760/PHS HHS/ -- R01 AI047457/AI/NIAID NIH HHS/ -- R01 AI047457-04/AI/NIAID NIH HHS/ -- R01 AI047457-05/AI/NIAID NIH HHS/ -- R01 AI047458/AI/NIAID NIH HHS/ -- R01 CA086065/CA/NCI NIH HHS/ -- R01 GM083084/GM/NIGMS NIH HHS/ -- R01 GM083084-04/GM/NIGMS NIH HHS/ -- R01AI047457/AI/NIAID NIH HHS/ -- R01AI047458/AI/NIAID NIH HHS/ -- R37 CA054358/CA/NCI NIH HHS/ -- R37 CA054358-18/CA/NCI NIH HHS/ -- R37 CA054358-19/CA/NCI NIH HHS/ -- R37CA053458/CA/NCI NIH HHS/ -- England -- Nature. 2010 Sep 16;467(7313):338-42. doi: 10.1038/nature09367. Epub 2010 Aug 15.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Epigenetics and Department of Medicine, Johns Hopkins University School of Medicine, 570 Rangos, 725 N. Wolfe St., Baltimore, Maryland 21205, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20720541" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; *Cell Lineage/genetics ; CpG Islands/genetics ; *DNA Methylation/genetics ; Epigenesis, Genetic ; Gene Expression Profiling ; Genome/genetics ; *Hematopoiesis/genetics ; Hematopoietic Stem Cells/*cytology/*metabolism ; Lymphocytes/cytology/metabolism ; Metabolome ; Metabolomics ; Mice ; Myeloid Cells/cytology/metabolism ; Pluripotent Stem Cells/cytology/metabolism
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  • 6
    Publication Date: 2010-11-12
    Description: Photoreceptors for visual perception, phototaxis or light avoidance are typically clustered in eyes or related structures such as the Bolwig organ of Drosophila larvae. Unexpectedly, we found that the class IV dendritic arborization neurons of Drosophila melanogaster larvae respond to ultraviolet, violet and blue light, and are major mediators of light avoidance, particularly at high intensities. These class IV dendritic arborization neurons, which are present in every body segment, have dendrites tiling the larval body wall nearly completely without redundancy. Dendritic illumination activates class IV dendritic arborization neurons. These novel photoreceptors use phototransduction machinery distinct from other photoreceptors in Drosophila and enable larvae to sense light exposure over their entire bodies and move out of danger.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3026603/" 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/PMC3026603/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Xiang, Yang -- Yuan, Quan -- Vogt, Nina -- Looger, Loren L -- Jan, Lily Yeh -- Jan, Yuh Nung -- R01 MH084234/MH/NIMH NIH HHS/ -- R37 NS040929/NS/NINDS NIH HHS/ -- R37 NS040929-11/NS/NINDS NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2010 Dec 16;468(7326):921-6. doi: 10.1038/nature09576. Epub 2010 Nov 10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Departments of Physiology, Biochemistry, and Biophysics, University of California San Francisco, San Francisco, California 94158, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21068723" target="_blank"〉PubMed〈/a〉
    Keywords: Animal Structures/cytology/metabolism/radiation effects ; Animals ; Avoidance Learning/physiology/radiation effects ; Cells, Cultured ; Dermis/metabolism/radiation effects ; Drosophila Proteins/metabolism ; Drosophila melanogaster/*anatomy & histology/cytology/physiology/*radiation ; effects ; Larva/anatomy & histology/cytology/radiation effects ; *Light ; Light Signal Transduction/radiation effects ; Neurons/physiology/radiation effects ; Photoreceptor Cells, Invertebrate/*metabolism/*radiation effects ; Receptors, Cell Surface/metabolism ; TRPC Cation Channels/metabolism
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 7
    Publication Date: 2010-10-22
    Description: Aberrant expression of microRNAs (miRNAs) and the enzymes that control their processing have been reported in multiple biological processes including primary and metastatic tumours, but the mechanisms governing this are not clearly understood. Here we show that TAp63, a p53 family member, suppresses tumorigenesis and metastasis, and coordinately regulates Dicer and miR-130b to suppress metastasis. Metastatic mouse and human tumours deficient in TAp63 express Dicer at very low levels, and we found that modulation of expression of Dicer and miR-130b markedly affected the metastatic potential of cells lacking TAp63. TAp63 binds to and transactivates the Dicer promoter, demonstrating direct transcriptional regulation of Dicer by TAp63. These data provide a novel understanding of the roles of TAp63 in tumour and metastasis suppression through the coordinate transcriptional regulation of Dicer and miR-130b and may have implications for the many processes regulated by miRNAs.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3055799/" 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/PMC3055799/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Su, Xiaohua -- Chakravarti, Deepavali -- Cho, Min Soon -- Liu, Lingzhi -- Gi, Young Jin -- Lin, Yu-Li -- Leung, Marco L -- El-Naggar, Adel -- Creighton, Chad J -- Suraokar, Milind B -- Wistuba, Ignacio -- Flores, Elsa R -- 01DE019765/DE/NIDCR NIH HHS/ -- CA16672/CA/NCI NIH HHS/ -- P30 CA016672-27/CA/NCI NIH HHS/ -- P50 CA070907/CA/NCI NIH HHS/ -- P50 CA070907-10/CA/NCI NIH HHS/ -- P50 CA091846/CA/NCI NIH HHS/ -- P50 CA091846-10/CA/NCI NIH HHS/ -- P50CA070907/CA/NCI NIH HHS/ -- P50CA091846/CA/NCI NIH HHS/ -- U01 DE019765/DE/NIDCR NIH HHS/ -- U01 DE019765-03/DE/NIDCR NIH HHS/ -- England -- Nature. 2010 Oct 21;467(7318):986-90. doi: 10.1038/nature09459.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cellular Oncology, The University of Texas M. D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, Texas 77030, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20962848" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Aging ; Cell Line ; Cell Line, Tumor ; DEAD-box RNA Helicases/biosynthesis/deficiency/genetics/*metabolism ; Endoribonucleases/genetics/*metabolism ; Female ; *Gene Expression Regulation, Neoplastic ; Genes, Tumor Suppressor/physiology ; Genomic Instability ; Humans ; Male ; Mice ; Mice, Inbred C57BL ; MicroRNAs/*biosynthesis/genetics/metabolism ; Neoplasm Metastasis/*genetics ; Neoplasms/genetics/pathology/secretion ; Phosphoproteins/deficiency/genetics/*metabolism ; Promoter Regions, Genetic/genetics ; Ribonuclease III/biosynthesis/deficiency/genetics/*metabolism ; Trans-Activators/deficiency/genetics/*metabolism ; Transcription Factors ; Transcriptional Activation ; Tumor Suppressor Proteins/deficiency/genetics/*metabolism
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 8
    Publication Date: 2010-06-11
    Description: The generation of reprogrammed induced pluripotent stem cells (iPSCs) from patients with defined genetic disorders holds the promise of increased understanding of the aetiologies of complex diseases and may also facilitate the development of novel therapeutic interventions. We have generated iPSCs from patients with LEOPARD syndrome (an acronym formed from its main features; that is, lentigines, electrocardiographic abnormalities, ocular hypertelorism, pulmonary valve stenosis, abnormal genitalia, retardation of growth and deafness), an autosomal-dominant developmental disorder belonging to a relatively prevalent class of inherited RAS-mitogen-activated protein kinase signalling diseases, which also includes Noonan syndrome, with pleomorphic effects on several tissues and organ systems. The patient-derived cells have a mutation in the PTPN11 gene, which encodes the SHP2 phosphatase. The iPSCs have been extensively characterized and produce multiple differentiated cell lineages. A major disease phenotype in patients with LEOPARD syndrome is hypertrophic cardiomyopathy. We show that in vitro-derived cardiomyocytes from LEOPARD syndrome iPSCs are larger, have a higher degree of sarcomeric organization and preferential localization of NFATC4 in the nucleus when compared with cardiomyocytes derived from human embryonic stem cells or wild-type iPSCs derived from a healthy brother of one of the LEOPARD syndrome patients. These features correlate with a potential hypertrophic state. We also provide molecular insights into signalling pathways that may promote the disease phenotype.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2885001/" 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/PMC2885001/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carvajal-Vergara, Xonia -- Sevilla, Ana -- D'Souza, Sunita L -- Ang, Yen-Sin -- Schaniel, Christoph -- Lee, Dung-Fang -- Yang, Lei -- Kaplan, Aaron D -- Adler, Eric D -- Rozov, Roye -- Ge, Yongchao -- Cohen, Ninette -- Edelmann, Lisa J -- Chang, Betty -- Waghray, Avinash -- Su, Jie -- Pardo, Sherly -- Lichtenbelt, Klaske D -- Tartaglia, Marco -- Gelb, Bruce D -- Lemischka, Ihor R -- 5R01GM078465/GM/NIGMS NIH HHS/ -- R01 GM078465/GM/NIGMS NIH HHS/ -- R01 GM078465-03/GM/NIGMS NIH HHS/ -- England -- Nature. 2010 Jun 10;465(7299):808-12. doi: 10.1038/nature09005.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Gene and Cell Medicine, Black Family Stem Cell Institute, Mount Sinai School of Medicine, New York, New York 10029, USA. xcarvajal@gmail.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20535210" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Cell Differentiation ; Cell Line ; Cell Lineage ; Cells, Cultured ; Embryonic Stem Cells/metabolism ; Enzyme Activation ; Female ; Fibroblasts/metabolism/pathology ; Gene Expression Profiling ; Homeodomain Proteins/genetics ; Humans ; Induced Pluripotent Stem Cells/enzymology/metabolism/*pathology ; LEOPARD Syndrome/drug therapy/metabolism/*pathology ; Male ; Mitogen-Activated Protein Kinases/metabolism ; *Models, Biological ; Myocytes, Cardiac/metabolism/pathology ; NFATC Transcription Factors/genetics/metabolism ; Octamer Transcription Factor-3/genetics ; Phosphoproteins/analysis ; Polymerase Chain Reaction ; *Precision Medicine ; Protein Tyrosine Phosphatase, Non-Receptor Type 11/genetics/metabolism ; SOXB1 Transcription Factors/genetics
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  • 9
    Publication Date: 2010-12-24
    Description: Endothelial nitric oxide synthase (eNOS) is critical in the regulation of vascular function, and can generate both nitric oxide (NO) and superoxide (O(2)(*-)), which are key mediators of cellular signalling. In the presence of Ca(2+)/calmodulin, eNOS produces NO, endothelial-derived relaxing factor, from l-arginine (l-Arg) by means of electron transfer from NADPH through a flavin containing reductase domain to oxygen bound at the haem of an oxygenase domain, which also contains binding sites for tetrahydrobiopterin (BH(4)) and l-Arg. In the absence of BH(4), NO synthesis is abrogated and instead O(2)(*-) is generated. While NOS dysfunction occurs in diseases with redox stress, BH(4) repletion only partly restores NOS activity and NOS-dependent vasodilation. This suggests that there is an as yet unidentified redox-regulated mechanism controlling NOS function. Protein thiols can undergo S-glutathionylation, a reversible protein modification involved in cellular signalling and adaptation. Under oxidative stress, S-glutathionylation occurs through thiol-disulphide exchange with oxidized glutathione or reaction of oxidant-induced protein thiyl radicals with reduced glutathione. Cysteine residues are critical for the maintenance of eNOS function; we therefore speculated that oxidative stress could alter eNOS activity through S-glutathionylation. Here we show that S-glutathionylation of eNOS reversibly decreases NOS activity with an increase in O(2)(*-) generation primarily from the reductase, in which two highly conserved cysteine residues are identified as sites of S-glutathionylation and found to be critical for redox-regulation of eNOS function. We show that eNOS S-glutathionylation in endothelial cells, with loss of NO and gain of O(2)(*-) generation, is associated with impaired endothelium-dependent vasodilation. In hypertensive vessels, eNOS S-glutathionylation is increased with impaired endothelium-dependent vasodilation that is restored by thiol-specific reducing agents, which reverse this S-glutathionylation. Thus, S-glutathionylation of eNOS is a pivotal switch providing redox regulation of cellular signalling, endothelial function and vascular tone.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3370391/" 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/PMC3370391/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, Chun-An -- Wang, Tse-Yao -- Varadharaj, Saradhadevi -- Reyes, Levy A -- Hemann, Craig -- Talukder, M A Hassan -- Chen, Yeong-Renn -- Druhan, Lawrence J -- Zweier, Jay L -- K99 HL103846/HL/NHLBI NIH HHS/ -- K99 HL103846-02/HL/NHLBI NIH HHS/ -- R01 HL038324/HL/NHLBI NIH HHS/ -- R01 HL038324-20/HL/NHLBI NIH HHS/ -- R01 HL063744/HL/NHLBI NIH HHS/ -- R01 HL063744-09/HL/NHLBI NIH HHS/ -- R01HL103846/HL/NHLBI NIH HHS/ -- R01HL38324/HL/NHLBI NIH HHS/ -- R01HL63744/HL/NHLBI NIH HHS/ -- R01HL65608/HL/NHLBI NIH HHS/ -- R01HL83237/HL/NHLBI NIH HHS/ -- England -- Nature. 2010 Dec 23;468(7327):1115-8. doi: 10.1038/nature09599.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Davis Heart and Lung Research Institute and Division of Cardiovascular Medicine, Department of Internal Medicine, College of Medicine, Ohio State University, Columbus, Ohio 43210, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21179168" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cattle ; Cells, Cultured ; Dithiothreitol/pharmacology ; Endothelial Cells/metabolism ; Endothelium, Vascular/*metabolism ; Glutathione/*metabolism ; Humans ; Male ; Mercaptoethanol/pharmacology ; Mutation ; Nitric Oxide Synthase Type III/genetics/*metabolism ; Oxidation-Reduction ; Rats ; Rats, Inbred SHR ; Rats, Inbred WKY ; Rats, Sprague-Dawley ; Reducing Agents/pharmacology ; Signal Transduction ; Vasodilation/physiology
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  • 10
    Publication Date: 2014-10-09
    Description: The neutralizing antibody response to influenza virus is dominated by antibodies that bind to the globular head of haemagglutinin, which undergoes a continuous antigenic drift, necessitating the re-formulation of influenza vaccines on an annual basis. Recently, several laboratories have described a new class of rare influenza-neutralizing antibodies that target a conserved site in the haemagglutinin stem. Most of these antibodies use the heavy-chain variable region VH1-69 gene, and structural data demonstrate that they bind to the haemagglutinin stem through conserved heavy-chain complementarity determining region (HCDR) residues. However, the VH1-69 antibodies are highly mutated and are produced by some but not all individuals, suggesting that several somatic mutations may be required for their development. To address this, here we characterize 197 anti-stem antibodies from a single donor, reconstruct the developmental pathways of several VH1-69 clones and identify two key elements that are required for the initial development of most VH1-69 antibodies: a polymorphic germline-encoded phenylalanine at position 54 and a conserved tyrosine at position 98 in HCDR3. Strikingly, in most cases a single proline to alanine mutation at position 52a in HCDR2 is sufficient to confer high affinity binding to the selecting H1 antigen, consistent with rapid affinity maturation. Surprisingly, additional favourable mutations continue to accumulate, increasing the breadth of reactivity and making both the initial mutations and phenylalanine at position 54 functionally redundant. These results define VH1-69 allele polymorphism, rearrangement of the VDJ gene segments and single somatic mutations as the three requirements for generating broadly neutralizing VH1-69 antibodies and reveal an unexpected redundancy in the affinity maturation process.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pappas, Leontios -- Foglierini, Mathilde -- Piccoli, Luca -- Kallewaard, Nicole L -- Turrini, Filippo -- Silacci, Chiara -- Fernandez-Rodriguez, Blanca -- Agatic, Gloria -- Giacchetto-Sasselli, Isabella -- Pellicciotta, Gabriele -- Sallusto, Federica -- Zhu, Qing -- Vicenzi, Elisa -- Corti, Davide -- Lanzavecchia, Antonio -- U19 AI-057266/AI/NIAID NIH HHS/ -- England -- Nature. 2014 Dec 18;516(7531):418-22. doi: 10.1038/nature13764. Epub 2014 Oct 5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Insitute for Research in Biomedicine, Universita della Svizzera Italiana, Via Vincenzo Vela 6, 6500 Bellinzona, Switzerland. ; Department of Infectious Diseases and Vaccines MedImmune LLC, One MedImmune Way, Gaithersburg, Maryland 20878, USA. ; Viral Pathogens and Biosafety Unit, San Raffaele Scientific Institute, Via Olgettina 58, 20132 Milan, Italy. ; Humabs BioMed SA, Via Mirasole 1, 6500 Bellinzona, Switzerland. ; Unit of Preventive Medicine, San Raffaele Scientific Institute, Via Olgettina 58, 20132 Milan, Italy. ; 1] Insitute for Research in Biomedicine, Universita della Svizzera Italiana, Via Vincenzo Vela 6, 6500 Bellinzona, Switzerland [2] Humabs BioMed SA, Via Mirasole 1, 6500 Bellinzona, Switzerland [3]. ; 1] Insitute for Research in Biomedicine, Universita della Svizzera Italiana, Via Vincenzo Vela 6, 6500 Bellinzona, Switzerland [2] Insitute for Microbiology, ETH Zurich, Wolfgang-Pauli-Strasse 10, 8093 Zurich, Switzerland [3].〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25296253" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Amino Acid Sequence ; Antibodies, Neutralizing/*genetics ; Cells, Cultured ; Complementarity Determining Regions/chemistry/*genetics ; Female ; Hemagglutinin Glycoproteins, Influenza Virus/immunology ; Humans ; Immunoglobulin Heavy Chains/genetics ; Influenza, Human/*immunology/virology ; Male ; Middle Aged ; Models, Molecular ; Mutation/*genetics ; Orthomyxoviridae/*immunology/metabolism ; Polymorphism, Genetic ; Protein Binding/genetics ; Protein Structure, Tertiary ; Young Adult
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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