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Found 37173 matches. Displaying 4721-4730
Takai H, Jenkinson E, Kabir S, Babul-Hirji R, Najm-Tehrani N, Chitayat DA, Crow YJ, de Lange T
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A POT1 mutation implicates defective telomere end fill-in and telomere truncations in Coats plus
GENES & DEVELOPMENT 2016 APR 1; 30(7):812-826
Coats plus (CP) can be caused by mutations in the CTC1 component of CST, which promotes polymerase a (pola)/primase- dependent fill-in throughout the genome and at telomeres. The cellular pathology relating to CP has not been established. We identified a homozygous POT1 S322L substitution (POT1(CP)) in two siblings with CP. POT1(CP) induced a proliferative arrest that could be bypassed by telomerase. POT1CP was expressed at normal levels, bound TPP1 and telomeres, and blocked ATR signaling. POT1(CP) was defective in regulating telomerase, leading to telomere elongation rather than the telomere shortening observed in other telomeropathies. POT1(CP) was also defective in the maintenance of the telomeric C strand, causing extended 3' overhangs and stochastic telomere truncations that could be healed by telomerase. Consistent with shortening of the telomeric C strand, metaphase chromosomes showed loss of telomeres synthesized by leading strand DNA synthesis. We propose that CP is caused by a defect in POT1/CST-dependent telomere fill-in. We further propose that deficiency in the fill-in step generates truncated telomeres that halt proliferation in cells lacking telomerase, whereas, in tissues expressing telomerase (e.g., bone marrow), the truncations are healed. The proposed etiology can explain why CP presents with features distinct from those associated with telomerase defects (e.g., dyskeratosis congenita).
Winblad B, Amouyel P, Andrieu S, Ballard C, Brayne C, Brodaty H, Cedazo-Minguez A, Dubois B, Edvardsson D, Feldman H, Fratiglioni L, Frisoni GB, Gauthier S, Georges J, Graff C, Iqbal K, Jessen F, Johansson G, Jonsson L, Kivipelto M, Knapp M, Mangialasche F, Melis R, Nordberg A, Rikkert MO, Qiu CX, Sakmar TP, Scheltens P, Schneider LS, Sperling R, Tjernberg LO, Waldemar G, Wimo A, Zetterberg H
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Defeating Alzheimer's disease and other dementias: a priority for European science and society
LANCET NEUROLOGY 2016 APR; 15(5):455-532
Touhara KK, Wang WW, MacKinnon R
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The GIRK1 subunit potentiates G protein activation of cardiac GIRK1/4 hetero-tetramers
ELIFE 2016 APR 13; 5(?):? Article e15750
G protein gated inward rectifier potassium (GIRK) channels are gated by direct binding of G protein beta-gamma subunits (Gb gamma), signaling lipids, and intracellular Na+. In cardiac pacemaker cells, hetero-tetramer GIRK1/4 channels and homo-tetramer GIRK4 channels play a central role in parasympathetic slowing of heart rate. It is known that the Na+ binding site of the GIRK1 subunit is defective, but the functional difference between GIRK1/4 hetero-tetramers and GIRK4 homo-tetramers remains unclear. Here, using purified proteins and the lipid bilayer system, we characterize Gb gamma and Na+ regulation of GIRK1/4 hetero-tetramers and GIRK4 homo-tetramers. We find in GIRK4 homo-tetramers that Na+ binding increases Gb gamma affinity and thereby increases the GIRK4 responsiveness to G protein stimulation. GIRK1/4 hetero-tetramers are not activated by Na+, but rather are in a permanent state of high responsiveness to Gb gamma, suggesting that the GIRK1 subunit functions like a GIRK4 subunit with Na+ permanently bound.
Sarkar S, Bi DP, Zhang J, Ren J, Behringer RP, Chakraborty B
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Shear-induced rigidity of frictional particles: Analysis of emergent order in stress space
PHYSICAL REVIEW E 2016 APR 4; 93(4):? Article 042901
Solids are distinguished from fluids by their ability to resist shear. In equilibrium systems, the resistance to shear is associated with the emergence of broken translational symmetry as exhibited by a nonuniform density pattern that is persistent, which in turn results from minimizing the free energy. In this work, we focus on a class of systems where this paradigm is challenged. We show that shear-driven jamming in dry granular materials is a collective process controlled by the constraints of mechanical equilibrium. We argue that these constraints can lead to a persistent pattern in a dual space that encodes the statistics of contact forces and the topology of the contact network. The shear-jamming transition is marked by the appearance of this persistent pattern. We investigate the structure and behavior of patterns both in real space and the dual space as the system evolves through the rigidity transition for a range of packing fractions and in two different shear protocols. We show that, in the protocol that creates homogeneous jammed states without shear bands, measures of shear jamming do not depend on strain and packing fraction independently but obey a scaling form with a packing-fraction-dependent characteristic strain that goes to zero at the isotropic jamming point phi(J). We demonstrate that it is possible to define a protocol-independent order parameter in this dual space, which provides a quantitative measure of the rigidity of shear-jammed states.
Khachatryan V, Sirunyan AM, Tumasyan A, Adam W, Asilar E, Bergauer T, Brandstetter J, Brondolin E, Dragicevic M, Ero J, Flechl M, Friedl M, Fruhwirth R, Ghete VM, Hartl C, Hormann N, Hrubec J, Jeitler M, Knunz V, Konig A, Krammer M, Kratschmer I, Liko D, Matsushita T, Mikulec I, Rabady D, Rahbaran B, Rohringer H, Schieck J, Schofbeck R, Strauss J, Treberer-Treberspurg W, Waltenberger W, Wulz CE, Mossolov V, Shumeiko N, Gonzalez JS, Alderweireldt S, Cornelis T, De Wolf EA, Janssen X, Knutsson A, Lauwers J, Luyckx S, Ochesanu S, Rougny R, De Klundert MV, Van Haevermaet H, Van Mechelen P, Van Remortel N, Van Spilbeeck A, Abu Zeid S, Blekman F, D'Hondt J, Daci N, De Bruyn I, Deroover K, Heracleous N, Keaveney J, Lowette S, Moreels L, Olbrechts A, Python Q, Strom D, Tavernier S, Van Doninck W, Van Mulders P, Van Onsem GP, Van Parijs I, Barria P, Caillol C, Clerbaux B, De Lentdecker G, Delannoy H, Fasanella G, Favart L, Gay APR, Grebenyuk A, Lenzi T, Leonard A, Maerschalk T, Marinov A, Pernie L, Randle-conde A, Reis T, Seva T, Velde CV, Vanlaer P, Yonamine R, Zenoni F, Zhang F, Beernaert K, Benucci L, Cimmino A, Crucy S, Dobur D, Fagot A, Garcia G, Gul M, Mccartin J, Rios AAO, Poyraz D, Ryckbosch D, Salva S, Sigamani M, Strobbe N, Tytgat M, Van Driessche W, Yazgan E, Zaganidis N, Basegmez S, Beluffi C, Bondu O, Brochet S, Bruno G, Castello R, Caudron A, Ceard L, Da Silveira GG, Delaere C, Favart D, Forthomme L, Giammanco A, Hollar J, Jafari A, Jez P, Komm M, Lemaitre V, Mertens A, Nuttens C, Perrini L, Pin A, Piotrzkowski K, Popov A, Quertenmont L, Selvaggi M, Marono MV, Beliy N, Hammad GH, Alda WL, Alves GA, Brito L, Martins MCM, Hensel C, Herrera CM, Moraes A, Pol ME, Teles PR, Das Chagas EBB, Carvalho W, Chinellato J, Custodio A, Da Costa EM, Damiao DD, Martins CD, De Souza SF, Guativa LMH, Malbouisson H, Figueiredo DM, Mundim L, Nogima H, Da Silva WLP, Santoro A, Sznajder A, Manganote EJT, Pereira AV, Ahuja S, Bernardes A, Santos ADS, Dogra S, Tomei TRFP, Gregores EM, Mercadante PG, Moon CS, Novaes SF, Padula SS, Abad DR, Vargas JCR, Aleksandrov A, Genchev V, Hadjiiska R, Iaydjiev P, Piperov S, Rodozov M, Stoykova S, Sultanov G, Vutova M, Dimitrov A, Glushkov I, Litov L, Pavlov B, Petkov P, Ahmad M, Bian JG, Chen GM, Chen HS, Chen M, Cheng T, Du R, Jiang CH, Plestina R, Romeo F, Shaheen SM, Tao J, Wang C, Wang Z, Zhang H, Asawatangtrakuldee C, Ban Y, Li Q, Liu S, Mao Y, Qian SJ, Wang D, Xu Z, Zou W, Avila C, Cabrera A, Sierra LFC, Florez C, Gomez JP, Moreno BG, Sanabria JC, Godinovic N, Lelas D, Polic D, Puljak I, Cipriano PMR, Antunovic Z, Kovac M, Brigljevic V, Kadija K, Luetic J, Micanovic S, Sudic L, Attikis A, Mavromanolakis G, Mousa J, Nicolaou C, Ptochos F, Razis PA, Rykaczewski H, Bodlak M, Finger M, Finger M, Assran Y, Elgammal S, Mahmoud MA, Calpas B, Kadastik M, Murumaa M, Raidal M, Tiko A, Veelken C, Eerola P, Pekkanen J, Voutilainen M, Harkonen J, Karimaki V, Kinnunen R, Lampen T, Lassila-Perini K, Lehti S, Linden T, Luukka P, Maenpaa T, Peltola T, Tuominen E, Tuominiemi J, Tuovinen E, Wendland L, Talvitie J, Tuuva T, Besancon M, Couderc F, Dejardin M, Denegri D, Fabbro B, Faure JL, Favaro C, Ferri F, Ganjour S, Givernaud A, Gras P, de Monchenault GH, Jarry P, Locci E, Machet M, Malcles J, Rander J, Rosowsky A, Titov M, Zghiche A, Antropov I, Baffioni S, Beaudette F, Busson P, Cadamuro L, Chapon E, Charlot C, Dahms T, Davignon O, Filipovic N, Florent A, Granier de Cassagnac R, Lisniak S, Mastrolorenzo L, Mine P, Naranjo IN, Nguyen M, Ochando C, Ortona G, Paganini P, Regnard S, Salerno R, Sauvan JB, Sirois Y, Strebler T, Yilmaz Y, Zabi A, Agram JL, Andrea J, Aubin A, Bloch D, Brom JM, Buttignol M, Chabert EC, Chanon N, Collard C, Conte E, Coubez X, Fontaine JC, Gele D, Goerlach U, Goetzmann C, Le Bihan AC, Merlin JA, Skovpen K, Van Hove P, Gadrat S, Beauceron S, Bernet C, Boudoul G, Bouvier E, Montoya CAC, Chasserat J, Chierici R, Contardo D, Courbon B, Depasse P, El Mamouni H, Fan J, Fay J, Gascon S, Gouzevitch M, Ille B, Lagarde F, Laktineh IB, Lethuillier M, Mirabito L, Pequegnot AL, Perries S, Alvarez JDR, Sabes D, Sgandurra L, Sordini V, Donckt MV, Verdier P, Viret S, Xiao H, Toriashvili T, Tsamalaidze Z, Autermann C, Beranek S, Edelhoff M, Feld L, Heister A, Kiesel MK, Klein K, Lipinski M, Ostapchuk A, Preuten M, Raupach F, Schael S, Schulte JF, Verlage T, Weber H, Wittmer B, Zhukov V, Ata M, Brodski M, Dietz-Laursonn E, Duchardt D, Edelhauser L, Endres M, Erdmann M, Erdweg S, Esch T, Fischer R, Guth A, Hebbeker T, Heidemann C, Hoepfner K, Klingebiel D, Knochel A, Knutzen S, Kreuzer P, Merschmeyer M, Meyer A, Millet P, Olschewski M, Padeken K, Papacz P, Pook T, Radziej M, Reithler H, Rieger M, Scheuch F, Sonnenschein L, Teyssier D, Thuer S, Cherepanov V, Erdogan Y, Flugge G, Geenen H, Geisler M, Hoehle F, Kargoll B, Kress T, Kuessel Y, Kunsken A, Lingemann J, Nehrkorn A, Nowack A, Nugent IM, Pistone C, Pooth O, Stahl A, Martin MA, Asin I, Bartosik N, Behnke O, Behrens U, Bell AJ, Borras K, Burgmeier A, Cakir A, Calligaris L, Campbell A, Choudhury S, Costanza F, Pardos CD, Dolinska G, Dooling S, Dorland T, Eckerlin G, Eckstein D, Eichhorn T, Flucke G, Gallo E, Garcia JG, Geiser A, Gizhko A, Gunnellini P, Hauk J, Hempel M, Jung H, Kalogeropoulos A, Karacheban O, Kasemann M, Katsas P, Kieseler J, Kleinwort C, Korol I, Lange W, Leonard J, Lipka K, Lobanov A, Lohmann W, Mankel R, Marfin I, Melzer-Pellmann IA, Meyer AB, Mittag G, Mnich J, Mussgiller A, Naumann-Emme S, Nayak A, Ntomari E, Perrey H, Pitzl D, Placakyte R, Raspereza A, Roland B, Sahin MO, Saxena P, Schoerner-Sadenius T, Schroder M, Seitz C, Spannagel S, Trippkewitz KD, Walsh R, Wissing C, Blobel V, Vignali MC, Draeger AR, Erfle J, Garutti E, Goebel K, Gonzalez D, Gorner M, Haller J, Hoffmann M, Hoing RS, Junkes A, Klanner R, Kogler R, Lapsien T, Lenz T, Marchesini I, Marconi D, Nowatschin D, Ott J, Pantaleo F, Peiffer T, Perieanu A, Pietsch N, Poehlsen J, Rathjens D, Sander C, Schettler H, Schleper P, Schlieckau E, Schmidt A, Schwandt J, Seidel M, Sola V, Stadie H, Steinbruck G, Tholen H, Troendle D, Usai E, Vanelderen L, Vanhoefer A, Akbiyik M, Barth C, Baus C, Berger J, Boser C, Butz E, Chwalek T, Colombo F, De Boer W, Descroix A, Dierlamm A, Fink S, Frensch F, Giffels M, Gilbert A, Hartmann F, Heindl SM, Husemann U, Kassel F, Katkov I, Kornmayer A, Pardo PL, Maier B, Mildner H, Mozer MU, Muller T, Muller T, Plagge M, Quast G, Rabbertz K, Rocker S, Roscher F, Simonis HJ, Stober FM, Ulrich R, Wagner-Kuhr J, Wayand S, Weber M, Weiler T, Wohrmann C, Wolf R, Anagnostou G, Daskalakis G, Geralis T, Giakoumopoulou VA, Kyriakis A, Loukas D, Psallidas A, Topsis-Giotis I, Agapitos A, Kesisoglou S, Panagiotou A, Saoulidou N, Tziaferi E, Evangelou I, Flouris G, Foudas C, Kokkas P, Loukas N, Manthos N, Papadopoulos I, Paradas E, Strologas J, Bencze G, Hajdu C, Hazi A, Hidas P, Horvath D, Sikler F, Veszpremi V, Vesztergombi G, Zsigmond AJ, Beni N, Czellar S, Karancsi J, Molnar J, Szillasi Z, Bartok M, Makovec A, Raics P, Trocsanyi ZL, Ujvari B, Mal P, Mandal K, Sahoo N, Swain SK, Bansal S, Beri SB, Bhatnagar V, Chawla R, Gupta R, Bhawandeep U, Kalsi AK, Kaur A, Kaur M, Kumar R, Mehta A, Mittal M, Singh JB, Walia G, Kumar A, Kumar A, Bhardwaj A, Choudhary BC, Garg RB, Kumar A, Malhotra S, Naimuddin M, Nishu N, Ranjan K, Sharma R, Sharma V, Banerjee S, Bhattacharya S, Chatterjee K, Dey S, Dutta S, Jain S, Majumdar N, Modak A, Mondal K, Mukherjee S, Mukhopadhyay S, Roy A, Roy D, Chowdhury SR, Sarkar S, Sharan M, Abdulsalam A, Chudasama R, Dutta D, Jha V, Kumar V, Mohanty AK, Pant LM, Shukla P, Topkar A, Aziz T, Banerjee S, Bhowmik S, Chatterjee RM, Dewanjee RK, Dugad S, Ganguly S, Ghosh S, Guchait M, Gurtu A, Kole G, Kumar S, Mahakud B, Maity M, Majumder G, Mazumdar K, Mitra S, Mohanty GB, Parida B, Sarkar T, Sudhakar K, Sur N, Sutar B, Wickramage N, Chauhan S, Dube S, Sharma S, Bakhshiansohi H, Behnamian H, Etesami SM, Fahim A, Goldouzian R, Khakzad M, Najafabadi MM, Naseri M, Mehdiabadi SP, Hosseinabadi FR, Safarzadeh B, Zeinali M, Felcini M, Grunewald M, Abbrescia M, Calabria C, Caputo C, Chhibra SS, Colaleo A, Creanza D, Cristella L, De Filippis N, De Palma M, Fiore L, Iaselli G, Maggi G, Maggi M, Miniello G, My S, Nuzzo S, Pompili A, Pugliese G, Radogna R, Ranieri A, Selvaggi G, Silvestris L, Venditti R, Verwilligen P, Abbiendi G, Battilana C, Benvenuti AC, Bonacorsi D, Braibant-Giacomelli S, Brigliadori L, Campanini R, Capiluppi P, Castro A, Cavallo FR, Codispoti G, Cuffiani M, Dallavalle GM, Fabbri F, Fanfani A, Fasanella D, Giacomelli P, Grandi C, Guiducci L, Marcellini S, Masetti G, Montanari A, Navarria FL, Perrotta A, Rossi AM, Rovelli T, Siroli GP, Tosi N, Travaglini R, Cappello G, Chiorboli M, Costa S, Giordano F, Potenza R, Tricomi A, Tuve C, Barbagli G, Ciulli V, Civinini C, D'Alessandro R, Focardi E, Gonzi S, Gori V, Lenzi P, Meschini M, Paoletti S, Sguazzoni G, Tropiano A, Viliani L, Benussi L, Bianco S, Fabbri F, Piccolo D, Calvelli V, Ferro F, Lo Vetere M, Monge MR, Robutti E, Tosi S, Brianza L, Dinardo ME, Fiorendi S, Gennai S, Gerosa R, Ghezzi A, Govoni P, Malvezzi S, Manzoni RA, Marzocchi B, Menasce D, Moroni L, Paganoni M, Pedrini D, Ragazzi S, Redaelli N, de Fatis TT, Buontempo S, Cavallo N, Di Guida S, Esposito M, Fabozzi F, Iorio AOM, Lanza G, Lista L, Meola S, Merola M, Paolucci P, Sciacca C, Thyssen F, Azzi P, Bacchetta N, Benato L, Bisello D, Boletti A, Branca A, Carlin R, Checchia P, Dall'Osso M, Dorigo T, Gasparini F, Gasparini U, Gozzelino A, Kanishchev K, Lacaprara S, Margoni M, Meneguzzo AT, Montecassiano F, Passaseo M, Pazzini J, Pozzobon N, Ronchese P, Simonetto F, Torassa E, Tosi M, Zanetti M, Zotto P, Zucchetta A, Zumerle G, Braghieri A, Magnani A, Montagna P, Ratti SP, Re V, Riccardi C, Salvini P, Vai I, Vitulo P, Solestizi LA, Biasini M, Bilei GM, Ciangottini D, Fano L, Lariccia P, Mantovani G, Menichelli M, Saha A, Santocchia A, Spiezia A, Androsov K, Azzurri P, Bagliesi G, Bernardini J, Boccali T, Broccolo G, Castaldi R, Ciocci MA, Dell'Orso R, Donato S, Fedi G, Foa L, Giassi A, Grippo MT, Ligabue F, Lomtadze T, Martini L, Messineo A, Palla F, Rizzi A, Savoy-Navarro A, Serban AT, Spagnolo P, Squillacioti P, Tenchini R, Tonelli G, Venturi A, Verdini PG, Barone L, Cavallari F, D'imperio G, Del Re D, Diemoz M, Gelli S, Jorda C, Longo E, Margaroli F, Meridiani P, Micheli F, Organtini G, Paramatti R, Preiato F, Rahatlou S, Rovelli C, Santanastasio F, Traczyk P, Amapane N, Arcidiacono R, Argiro S, Arneodo M, Bellan R, Biino C, Cartiglia N, Costa M, Covarelli R, De Remigis P, Degano A, Demaria N, Finco L, Mariotti C, Maselli S, Migliore E, Monaco V, Monteil E, Musich M, Obertino MM, Pacher L, Pastrone N, Pelliccioni M, Angioni GLP, Ravera F, Romero A, Ruspa M, Sacchi R, Solano A, Staiano A, Tamponi U, Belforte S, Candelise V, Casarsa M, Cossutti F, Della Ricca G, Gobbo B, La Licata C, Marone M, Schizzi A, Umer T, Zanetti A, Chang S, Kropivnitskaya A, Nam SK, Kim DH, Kim GN, Kim MS, Kong DJ, Lee S, Oh YD, Sakharov A, Son DC, Cifuentes JAB, Kim H, Kim TJ, Ryu MS, Song S, Choi S, Go Y, Gyun D, Hong B, Jo M, Kim H, Kim Y, Lee B, Lee K, Lee KS, Lee S, Park SK, Roh Y, Yoo HD, Choi M, Kim H, Kim JH, Lee JSH, Park IC, Ryu G, Choi Y, Choi YK, Goh J, Kim D, Kwon E, Lee J, Yu I, Juodagalvis A, Vaitkus J, Ahmed I, Ibrahim ZA, Komaragiri JR, Ali MABM, Idris FM, Abdullah WATW, Yusli MN, Linares EC, Castilla-Valdez H, De La Cruz-Burelo E, Heredia-de La Cruz I, Hernandez-Almada A, Lopez-Fernandez R, Sanchez-Hernandez A, Moreno SC, Valencia FV, Carpinteyro S, Pedraza I, Ibarguen HAS, Pineda AM, Krofcheck D, Butler PH, Reucroft S, Ahmad A, Ahmad M, Hassan Q, Hoorani HR, Khan WA, Khurshid T, Shoaib M, Bialkowska H, Bluj M, Boimska B, Frueboes T, Gorski M, Kazana M, Nawrocki K, Romanowska-Rybinska K, Szleper M, Zalewski P, Brona G, Bunkowski K, Doroba K, Kalinowski A, Konecki M, Krolikowski J, Misiura M, Olszewski M, Walczak M, Bargassa P, Silva CBDE, Di Francesco A, Faccioli P, Parracho PGF, Gallinaro M, Leonardo N, Iglesias LL, Nguyen F, Antunes JR, Seixas J, Toldaiev O, Vadruccio D, Varela J, Vischia P, Afanasiev S, Bunin P, Gavrilenko M, Golutvin I, Gorbunov I, Kamenev A, Karjavin V, Konoplyanikov V, Lanev A, Malakhov A, Matveev V, Moisenz P, Palichik V, Perelygin V, Shmatov S, Shulha S, Skatchkov N, Smirnov V, Zarubin A, Golovtsov V, Ivanov Y, Kim V, Kuznetsova E, Levchenko P, Murzin V, Oreshkin V, Smirnov I, Sulimov V, Uvarov L, Vavilov S, Vorobyev A, Andreev Y, Dermenev A, Gninenko S, Golubev N, Karneyeu A, Kirsanov M, Krasnikov N, Pashenkov A, Tlisov D, Toropin A, Epshteyn V, Gavrilov V, Lychkovskaya N, Popov V, Pozdnyakov I, Safronov G, Spiridonov A, Vlasov E, Zhokin A, Bylinkin A, Andreev V, Azarkin M, Dremin I, Kirakosyan M, Leonidov A, Mesyats G, Rusakov SV, Vinogradov A, Baskakov A, Belyaev A, Boos E, Bunichev V, Dubinin M, Dudko L, Ershov A, Gribushin A, Klyukhin V, Kodolova O, Lokhtin I, Myagkov I, Obraztsov S, Perfilov M, Savrin V, Azhgirey I, Bayshev I, Bitioukov S, Kachanov V, Kalinin A, Konstantinov D, Krychkine V, Petrov V, Ryutin R, Sobol A, Tourtchanovitch L, Troshin S, Tyurin N, Uzunian A, Volkov A, Adzic P, Ekmedzic M, Milosevic J, Rekovic V, Maestre JA, Calvo E, Cerrada M, Llatas MC, Colino N, De La Cruz B, Peris AD, Vazquez DD, Del Valle AE, Bedoya CF, Ramos JPF, Flix J, Fouz MC, Garcia-Abia P, Lopez OG, Lopez SG, Hernandez JM, Josa MI, De Martino EN, Yzquierdo APC, Pelayo JP, Olmeda AQ, Redondo I, Romero L, Soares MS, Albajar C, de Troconiz JF, Missiroli M, Moran D, Brun H, Cuevas J, Menendez JF, Folgueras S, Caballero IG, Cortezon EP, Garcia JMV, Cabrillo IJ, Calderon A, De Saa JRC, Manzano PD, Campderros JD, Fernandez M, Gomez G, Graziano A, Virto AL, Marco J, Marco R, Rivero CM, Matorras F, Sanchez FJM, Gomez JP, Rodrigo T, Rodriguez-Marrero AY, Ruiz-Jimeno A, Scodellaro L, Vila I, Cortabitarte RV, Abbaneo D, Auffray E, Auzinger G, Bachtis M, Baillon P, Ball AH, Barney D, Benaglia A, Bendavid J, Benhabib L, Benitez JF, Berruti GM, Bloch P, Bocci A, Bonato A, Botta C, Breuker H, Camporesi T, Cerminara G, Colafranceschi S, D'Alfonso M, d'Enterria D, Dabrowski A, Daponte V, David A, De Gruttola M, De Guio F, De Roeck A, De Visscher S, Di Marco E, Dobson M, Dordevic M, du Pree T, Dupont N, Elliott-Peisert A, Franzoni G, Funk W, Gigi D, Gill K, Giordano D, Girone M, Glege F, Guida R, Gundacker S, Guthoff M, Hammer J, Hansen M, Harris P, Hegeman J, Innocente V, Janot P, Kirschenmann H, Kortelainen MJ, Kousouris K, Krajczar K, Lecoq P, Lourenco C, Lucchini MT, Magini N, Malgeri L, Mannelli M, Martelli A, Masetti L, Meijers F, Mersi S, Meschi E, Moortgat F, Morovic S, Mulders M, Nemallapudi MV, Neugebauer H, Orfanelli S, Orsini L, Pape L, Perez E, Petrilli A, Petrucciani G, Pfeiffer A, Piparo D, Racz A, Rolandi G, Rovere M, Ruan M, Sakulin H, Schafer C, Schwick C, Sharma A, Silva P, Simon M, Sphicas P, Spiga D, Steggemann J, Stieger B, Stoye M, Takahashi Y, Treille D, Triossi A, Tsirou A, Veres GI, Wardle N, Wohri HK, Zagozdzinska A, Zeuner WD, Bertl W, Deiters K, Erdmann W, Horisberger R, Ingram Q, Kaestli HC, Kotlinski D, Langenegger U, Renker D, Rohe T, Bachmair F, Bani L, Bianchini L, Buchmann MA, Casal B, Dissertori G, Dittmar M, Donega M, Dunser M, Eller P, Grab C, Heidegger C, Hits D, Hoss J, Kasieczka G, Lustermann W, Mangano B, Marini AC, Marionneau M, del Arbol PMR, Masciovecchio M, Meister D, Musella P, Nessi-Tedaldi F, Pandolfi F, Pata J, Pauss F, Perrozzi L, Peruzzi M, Quittnat M, Rossini M, Starodumov A, Takahashi M, Tavolaro VR, Theofilatos K, Wallny R, Aarrestad TK, Amsler C, Caminada L, Canelli MF, Chiochia V, De Cosa A, Galloni C, Hinzmann A, Hreus T, Kilminster B, Lange C, Ngadiuba J, Pinna D, Robmann P, Ronga FJ, Salerno D, Yang Y, Cardaci M, Chen KH, Doan TH, Ferro C, Jain S, Khurana R, Konyushikhin M, Kuo CM, Lin W, Lu YJ, Volpe R, Yu SS, Bartek R, Chang P, Chang YH, Chang YW, Chao Y, Chen KF, Chen PH, Dietz C, Fiori F, Grundler U, Hou WS, Hsiung Y, Liu YF, Lu RS, Moya MM, Petrakou E, Tsai JF, Tzeng YM, Asavapibhop B, Kovitanggoon K, Singh G, Srimanobhas N, Suwonjandee N, Adiguzel A, Bakirci MN, Dozen C, Dumanoglu I, Eskut E, Girgis S, Gokbulut G, Guler Y, Gurpinar E, Hos I, Kangal EE, Onengut G, Ozdemir K, Ozturk S, Polatoz A, Cerci DS, Vergili M, Zorbilmez C, Akin IV, Bilin B, Bilmis S, Isildak B, Karapinar G, Surat UE, Yalvac M, Zeyrek M, Albayrak EA, Gulmez E, Kaya M, Kaya O, Yetkin T, Cankocak K, Sen S, Vardarli FI, Grynyov B, Levchuk L, Sorokin P, Aggleton R, Ball F, Beck L, Brooke JJ, Clement E, Cussans D, Flacher H, Goldstein J, Grimes M, Heath GP, Heath HF, Jacob J, Kreczko L, Lucas C, Meng Z, Newbold DM, Paramesvaran S, Poll A, Sakuma T, El Nasr-Storey SS, Senkin S, Smith D, Smith VJ, Bell KW, Belyaev A, Brew C, Brown RM, Cockerill DJA, Coughlan JA, Harder K, Harper S, Olaiya E, Petyt D, Shepherd-Themistocleous CH, Thea A, Thomas L, Tomalin IR, Williams T, Womersley WJ, Worm SD, Baber M, Bainbridge R, Buchmuller O, Bundock A, Burton D, Casasso S, Citron M, Colling D, Corpe L, Cripps N, Dauncey P, Davies G, De Wit A, Della Negra M, Dunne P, Elwood A, Ferguson W, Fulcher J, Futyan D, Hall G, Iles G, Karapostoli G, Kenzie M, Lane R, Lucas R, Lyons L, Magnan AM, Malik S, Nash J, Nikitenko A, Pela J, Pesaresi M, Petridis K, Raymond DM, Richards A, Rose A, Seez C, Tapper A, Uchida K, Acosta MV, Virdee T, Zenz SC, Cole JE, Hobson PR, Khan A, Kyberd P, Leggat D, Leslie D, Reid ID, Symonds P, Teodorescu L, Turner M, Borzou A, Call K, Dittmann J, Hatakeyama K, Kasmi A, Liu H, Pastika N, Charaf O, Cooper SI, Henderson C, Rumerio P, Avetisyan A, Bose T, Fantasia C, Gastler D, Lawson P, Rankin D, Richardson C, Rohlf J, St John J, Sulak L, Zou D, Alimena J, Berry E, Bhattacharya S, Cutts D, Dhingra N, Ferapontov A, Garabedian A, Heintz U, Laird E, Landsberg G, Mao Z, Narain M, Sagir S, Sinthuprasith T, Breedon R, Breto G, Sanchez MCD, Chauhan S, Chertok M, Conway J, Conway R, Cox PT, Erbacher R, Gardner M, Ko W, Lander R, Mulhearn M, Pellett D, Pilot J, Ricci-Tam F, Shalhout S, Smith J, Squires M, Stolp D, Tripathi M, Wilbur S, Yohay R, Cousins R, Everaerts P, Farrell C, Hauser J, Ignatenko M, Saltzberg D, Takasugi E, Valuev V, Weber M, Burt K, Clare R, Ellison J, Gary JW, Hanson G, Heilman J, Paneva MI, Jandir P, Kennedy E, Lacroix F, Long OR, Luthra A, Malberti M, Negrete MO, Shrinivas A, Wei H, Wimpenny S, Branson JG, Cerati GB, Cittolin S, D'Agnolo RT, Holzner A, Kelley R, Klein D, Letts J, Macneill I, Olivito D, Padhi S, Pieri M, Sani M, Sharma V, Simon S, Tadel M, Vartak A, Wasserbaech S, Welke C, Wurthwein F, Yagil A, Della Porta GZ, Barge D, Bradmiller-Feld J, Campagnari C, Dishaw A, Dutta V, Flowers K, Sevilla MF, Geffert P, George C, Golf F, Gouskos L, Gran J, Incandela J, Justus C, Mccoll N, Mullin SD, Richman J, Stuart D, Suarez I, To W, West C, Yoo J, Anderson D, Apresyan A, Bornheim A, Bunn J, Chen Y, Duarte J, Mott A, Newman HB, Pena C, Pierini M, Spiropulu M, Vlimant JR, Xie S, Zhu RY, Azzolini V, Calamba A, Carlson B, Ferguson T, Iiyama Y, Paulini M, Russ J, Sun M, Vogel H, Vorobiev I, Cumalat JP, Ford WT, Gaz A, Jensen F, Johnson A, Krohn M, Mulholland T, Nauenberg U, Smith JG, Stenson K, Wagner SR, Alexander J, Chatterjee A, Chaves J, Chu J, Dittmer S, Eggert N, Mirman N, Kaufman GN, Patterson JR, Rinkevicius A, Ryd A, Skinnari L, Soffi L, Sun W, Tan SM, Teo WD, Thom J, Thompson J, Tucker J, Weng Y, Wittich P, Abdullin S, Albrow M, Anderson J, Apollinari G, Bauerdick LAT, Beretvas A, Berryhill J, Bhat PC, Bolla G, Burkett K, Butler JN, Cheung HWK, Chlebana F, Cihangir S, Elvira VD, Fisk I, Freeman J, Gottschalk E, Gray L, Green D, Grunendahl S, Gutsche O, Hanlon J, Hare D, Harris M, Hirschauer J, Hooberman B, Hu Z, Jindariani S, Johnson M, Joshi U, Jung AW, Klima B, Kreis B, Kwan S, Lammel S, Linacre J, Lincoln D, Lipton R, Liu T, De Sa RL, Lykken J, Maeshima K, Marraffino JM, Outschoorn VIM, Maruyama S, Mason D, McBride P, Merkel P, Mishra K, Mrenna S, Nahn S, Newman-Holmes C, O'Dell V, Pedro K, Prokofyev O, Rakness G, Sexton-Kennedy E, Soha A, Spalding WJ, Spiegel L, Taylor L, Tkaczyk S, Tran NV, Uplegger L, Vaandering EW, Vernieri C, Verzocchi M, Vidal R, Weber HA, Whitbeck A, Yang F, Yin H, Acosta D, Avery P, Bortignon P, Bourilkov D, Carnes A, Carver M, Curry D, Das S, Di Giovanni GP, Field RD, Fisher M, Furic IK, Hugon J, Konigsberg J, Korytov A, Low JF, Ma P, Matchev K, Mei H, Milenovic P, Mitselmakher G, Muniz L, Rank D, Rossin R, Shchutska L, Snowball M, Sperka D, Wang J, Wang S, Yelton J, Hewamanage S, Linn S, Markowitz P, Martinez G, Rodriguez JL, Ackert A, Adams JR, Adams T, Askew A, Bochenek J, Diamond B, Haas J, Hagopian S, Hagopian V, Johnson KF, Khatiwada A, Prosper H, Veeraraghavan V, Weinberg M, Bhopatkar V, Hohlmann M, Kalakhety H, Mareskas-palcek D, Roy T, Yumiceva F, Adams MR, Apanasevich L, Berry D, Betts RR, Bucinskaite I, Cavanaugh R, Evdokimov O, Gauthier L, Gerber CE, Hofman DJ, Kurt P, O'Brien C, Gonzalez IDS, Silkworth C, Turner P, Varelas N, Wu Z, Zakaria M, Bilki B, Clarida W, Dilsiz K, Durgut S, Gandrajula RP, Haytmyradov M, Khristenko V, Merlo JP, Mermerkaya H, Mestvirishvili A, Moeller A, Nachtman J, Ogul H, Onel Y, Ozok F, Penzo A, Snyder C, Tan P, Tiras E, Wetzel J, Yi K, Anderson I, Barnett BA, Blumenfeld B, Fehling D, Feng L, Gritsan AV, Maksimovic P, Martin C, Nash K, Osherson M, Swartz M, Xiao M, Xin Y, Baringer P, Bean A, Benelli G, Bruner C, Gray J, Kenny RP, Majumder D, Malek M, Murray M, Noonan D, Sanders S, Stringer R, Wang Q, Wood JS, Chakaberia I, Ivanov A, Kaadze K, Khalil S, Makouski M, Maravin Y, Mohammadi A, Saini LK, Skhirtladze N, Svintradze I, Toda S, Lange D, Rebassoo F, Wright D, Anelli C, Baden A, Baron O, Belloni A, Calvert B, Eno SC, Ferraioli C, Gomez JA, Hadley NJ, Jabeen S, Kellogg RG, Kolberg T, Kunkle J, Lu Y, Mignerey AC, Shin YH, Skuja A, Tonjes MB, Tonwar SC, Apyan A, Barbieri R, Baty A, Bierwagen K, Brandt S, Busza W, Cali IA, Demiragli Z, Di Matteo L, Ceballos GG, Goncharov M, Gulhan D, Innocenti GM, Klute M, Kovalskyi D, Lai YS, Lee YJ, Levin A, Luckey PD, Mcginn C, Mironov C, Niu X, Paus C, Ralph D, Roland C, Roland G, Salfeld-Nebgen J, Stephans GSF, Sumorok K, Varma M, Velicanu D, Veverka J, Wang J, Wang TW, Wyslouch B, Yang M, Zhukova V, Dahmes B, Finkel A, Gude A, Hansen P, Kalafut S, Kao SC, Klapoetke K, Kubota Y, Lesko Z, Mans J, Nourbakhsh S, Ruckstuhl N, Rusack R, Tambe N, Turkewitz J, Acosta JG, Oliveros S, Avdeeva E, Bloom K, Bose S, Claes DR, Dominguez A, Fangmeier C, Suarez RG, Kamalieddin R, Keller J, Knowlton D, Kravchenko I, Lazo-Flores J, Meier F, Monroy J, Ratnikov F, Siado JE, Snow GR, Alyari M, Dolen J, George J, Godshalk A, Iashvili I, Kaisen J, Kharchilava A, Kumar A, Rappoccio S, Alverson G, Barberis E, Baumgartel D, Chasco M, Hortiangtham A, Massironi A, Morse DM, Nash D, Orimoto T, De Lima RT, Trocino D, Wang RJ, Wood D, Zhang J, Hahn KA, Kubik A, Mucia N, Odell N, Pollack B, Pozdnyakov A, Schmitt M, Stoynev S, Sung K, Trovato M, Velasco M, Won S, Brinkerhoff A, Dev N, Hildreth M, Jessop C, Karmgard DJ, Kellams N, Lannon K, Lynch S, Marinelli N, Meng F, Mueller C, Musienko Y, Pearson T, Planer M, Reinsvold A, Ruchti R, Smith G, Taroni S, Valls N, Wayne M, Wolf M, Woodard A, Antonelli L, Brinson J, Bylsma B, Durkin LS, Flowers S, Hart A, Hill C, Hughes R, Kotov K, Ling TY, Liu B, Luo W, Puigh D, Rodenburg M, Winer BL, Wulsin HW, Driga O, Elmer P, Hardenbrook J, Hebda P, Koay SA, Lujan P, Marlow D, Medvedeva T, Mooney M, Olsen J, Palmer C, Piroue P, Quan X, Saka H, Stickland D, Tully C, Werner JS, Zuranski A, Malik S, Barnes VE, Benedetti D, Bortoletto D, Gutay L, Jha MK, Jones M, Jung K, Kress M, Miller DH, Neumeister N, Primavera F, Radburn-Smith BC, Shi X, Shipsey I, Silvers D, Sun J, Svyatkovskiy A, Wang F, Xie W, Xu L, Zablocki J, Parashar N, Stupak J, Adair A, Akgun B, Chen Z, Ecklund KM, Geurts FJM, Guilbaud M, Li W, Michlin B, Northup M, Padley BP, Redjimi R, Roberts J, Rorie J, Tu Z, Zabel J, Betchart B, Bodek A, de Barbaro P, Demina R, Eshaq Y, Ferbel T, Galanti M, Garcia-Bellido A, Goldenzweig P, Han J, Harel A, Hindrichs O, Khukhunaishvili A, Petrillo G, Verzetti M, Demortier L, Arora S, Barker A, Chou JP, Contreras-Campana C, Contreras-Campana E, Duggan D, Ferencek D, Gershtein Y, Gray R, Halkiadakis E, Hidas D, Hughes E, Kaplan S, Elayavalli RK, Lath A, Panwalkar S, Park M, Salur S, Schnetzer S, Sheffield D, Somalwar S, Stone R, Thomas S, Thomassen P, Walker M, Foerster M, Riley G, Rose K, Spanier S, York A, Bouhali O, Hernandez AC, Dalchenko M, De Mattia M, Delgado A, Dildick S, Eusebi R, Flanagan W, Gilmore J, Kamon T, Krutelyov V, Montalvo R, Mueller R, Osipenkov I, Pakhotin Y, Patel R, Perloff A, Roe J, Rose A, Safonov A, Tatarinov A, Ulmer KA, Akchurin N, Cowden C, Damgov J, Dragoiu C, Dudero PR, Faulkner J, Kunori S, Lamichhane K, Lee SW, Libeiro T, Undleeb S, Volobouev I, Appelt E, Delannoy AG, Greene S, Gurrola A, Janjam R, Johns W, Maguire C, Mao Y, Melo A, Sheldon P, Snook B, Tuo S, Velkovska J, Xu Q, Arenton MW, Boutle S, Cox B, Francis B, Goodell J, Hirosky R, Ledovskoy A, Li H, Lin C, Neu C, Wolfe E, Wood J, Xia F, Clarke C, Harr R, Karchin PE, Don CKK, Lamichhane P, Sturdy J, Belknap DA, Carlsmith D, Cepeda M, Christian A, Dasu S, Dodd L, Duric S, Friis E, Gomber B, Hall-Wilton R, Herndon M, Herve A, Klabbers P, Lanaro A, Levine A, Long K, Loveless R, Mohapatra A, Ojalvo I, Perry T, Pierro GA, Polese G, Ross I, Ruggles T, Sarangi T, Savin A, Sharma A, Smith N, Smith WH, Taylor D, Woods N
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Search for W ' decaying to tau lepton and neutrino in proton-proton collisions at root s=8 TeV
PHYSICS LETTERS B 2016 APR 10; 755(?):196-216
The first search for a heavy charged vector boson in the final state with a tau lepton and a neutrino is reported, using 19.7 fb(-1) of LHC data at root s = 8 TeV. A signal would appear as an excess of events with high transverse mass, where the standard model background is low. No excess is observed. Limits are set on a model in which the W' decays preferentially to fermions of the third generation. These results substantially extend previous constraints on this model. Masses below 2.0 to 2.7 TeV are excluded, depending on the model parameters. In addition, the existence of a W' boson with universal fermion couplings is excluded at 95% confidence level, for W' masses below 2.7 TeV. For further reinterpretation a model-independent limit on potential signals for various transverse mass thresholds is also presented. (C) 2016 CERN for the benefit of the CMS Collaboration. Published by Elsevier B.V. This is an open access article under the CC BY license.
Lee EM, Alsagheir A, Wu XF, Hammack C, McLauchlan J, Watanabe N, Wakita T, Kneteman NM, Douglas DN, Tang HL
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Hepatitis C Virus-Induced Degradation of Cell Death-Inducing DFFA-Like Effector B Leads to Hepatic Lipid Dysregulation
JOURNAL OF VIROLOGY 2016 APR; 90(8):4174-4185
Individuals chronically infected with hepatitis C virus (HCV) commonly exhibit hepatic intracellular lipid accumulation, termed steatosis. HCV infection perturbs host lipid metabolism through both cellular and virus-induced mechanisms, with the viral core protein playing an important role in steatosis development. We have recently identified a liver protein, the cell death-inducing DFFA-like effector B (CIDEB), as an HCV entry host dependence factor that is downregulated by HCV infection in a cell culture model. In this study, we investigated the biological significance and molecular mechanism of this downregulation. HCV infection in a mouse model downregulated CIDEB in the liver tissue, and knockout of the CIDEB gene in a hepatoma cell line results in multiple aspects of lipid dysregulation that can contribute to hepatic steatosis, including reduced triglyceride secretion, lower lipidation of very-low-density lipoproteins, and increased lipid droplet (LD) stability. The potential link between CIDEB downregulation and steatosis is further supported by the requirement of the HCV core and its LD localization for CIDEB downregulation, which utilize a proteolytic cleavage event that is independent of the cellular proteasomal degradation of CIDEB. IMPORTANCE Our data demonstrate that HCV infection of human hepatocytes in vitro and in vivo results in CIDEB downregulation via a proteolytic cleavage event. Reduction of CIDEB protein levels by HCV or gene editing, in turn, leads to multiple aspects of lipid dysregulation, including LD stabilization. Consequently, CIDEB downregulation may contribute to HCV-induced hepatic steatosis.
Yapici N, Cohn R, Schusterreiter C, Ruta V, Vosshall LB
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A Taste Circuit that Regulates Ingestion by Integrating Food and Hunger Signals
CELL 2016 APR 21; 165(3):715-729
Ingestion is a highly regulated behavior that integrates taste and hunger cues to balance food intake with metabolic needs. To study the dynamics of ingestion in the vinegar fly Drosophila melanogaster, we developed Expresso, an automated feeding assay that measures individual meal-bouts with high temporal resolution at nanoliter scale. Flies showed discrete, temporally precise ingestion that was regulated by hunger state and sucrose concentration. We identify 12 cholinergic local interneurons (IN1, for "ingestion neurons'') necessary for this behavior. Sucrose ingestion caused a rapid and persistent increase in IN1 interneuron activity in fasted flies that decreased proportionally in response to subsequent feeding bouts. Sucrose responses of IN1 interneurons in fed flies were significantly smaller and lacked persistent activity. We propose that IN1 neurons monitor ingestion by connecting sugar-sensitive taste neurons in the pharynx to neural circuits that control the drive to ingest. Similar mechanisms for monitoring and regulating ingestion may exist in vertebrates.
Hartnett J, Thom B, Kline N
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Caregiver Burden in End-Stage Ovarian Cancer
CLINICAL JOURNAL OF ONCOLOGY NURSING 2016 APR; 20(2):169-173
Background: Caregiver burden associated with caring for women with ovarian cancer has received limited focus. However, these patients often have complex needs, requiring a high level of care at home and imposing substantial burdens on caregivers. Objectives: This pilot study assessed the level of caregiver burden experienced by the primary caregivers of patients with end-stage ovarian cancer and identified variables associated with caregiver burden. Methods: Caregiver burden was assessed using the Caregiver Reaction Assessment. Fifty caregivers completed an anonymous and voluntary survey. Pearson correlations and independent samples t tests were used to analyze data. Findings: Most participants were Caucasian, married or living with a partner, and college graduates, with an annual household income of less than $90,000. Caregiver ages ranged from 29-81 years. Participants agreed most with the self-esteem scale, indicating they had pride in caring for their loved ones. Disrupted schedules and financial problems were the most burdensome factors in providing care. Because financial issues affected caregiver burden, nurses should facilitate interdisciplinary support. Future research is needed to determine the impact of nurse-led interventions to reduce caregiver burden.
Jia MX, Lu H, Markowitz M, Cheng-Mayer C, Wu XL
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Development of Broadly Neutralizing Antibodies and Their Mapping by Monomeric gp120 in Human Immunodeficiency Virus Type 1-Infected Humans and Simian-Human Immunodeficiency Virus SHIVSF162P3N-Infected Macaques
JOURNAL OF VIROLOGY 2016 APR; 90(8):4017-4031
To improve our understanding of the similarities and differences between neutralizing antibodies elicited by simian-human immunodeficiency virus (SHIV)-infected rhesus macaques and human immunodeficiency virus type 1 (HIV-1)-infected humans, we examined the plasma of 13 viremic macaques infected with SHIVSF162P3N and 85 HIV-1-infected humans with known times of infection. We identified 5 macaques (38%) from 1 to 2 years postinfection (p.i.) with broadly neutralizing antibodies (bnAbs) against tier 2 HIV-1. In comparison, only 2 out of 42 (5%) human plasma samples collected in a similar time frame of 1 to 3 years p.i. exhibited comparable neutralizing breadths and potencies, with the number increasing to 7 out of 21 (30%) after 3 years p.i. Plasma mapping with monomeric gp120 identified only 2 out of 9 humans and 2 out of 4 macaques that contained gp120-reactive neutralizing antibodies, indicating distinct specificities in these plasma samples, with most of them recognizing the envelope trimer (including gp41) rather than the gp120 monomer. Indeed, a total of 20 gp120-directed monoclonal antibodies (MAbs) isolated from a human subject (AD358) and a Chinese rhesus macaque (GB40) displayed no or limited neutralizing activity against tier 2 strains. These isolated MAbs, mapped to the CD4-binding site, the V3 loop, the inner domain, and the C5 region of gp120, revealed genetic similarity between the human and macaque immunoglobulin genes used to encode some V3-directed MAbs. These results also support the use of envelope trimer probes for efficient isolation of HIV-1 bnAbs. IMPORTANCE HIV-1 vaccine research can benefit from understanding the development of broadly neutralizing antibodies (bnAbs) in rhesus macaques, commonly used to assess vaccine immunogenicity and efficacy. Here, we examined 85 HIV-1-infected humans and 13 SHIVSF162P3N-infected macaques for bnAbs and found that, similar to HIV-1-infected humans, bnAbs in SHIV-infected macaques are also rare, but their development might have been faster in some of the studied macaques. Plasma mapping with monomeric gp120 indicated that most bnAbs bind to the envelope trimer rather than the gp120 monomer. In support of this, none of the isolated gp120-reactive monoclonal antibodies (MAbs) displayed the neutralization breadth observed in the corresponding plasma. However, the MAb sequences revealed similarity between human and macaque genes used to encode some V3-directed MAbs. Our study sheds light on the timing and development of bnAbs in SHIV-infected macaques in comparison to HIV-1-infected humans and highlights the use of envelope trimer probes for efficient recovery of bnAbs.
Liu Y, Giannopoulou EG, Wen DC, Falciatori I, Elemento O, Allis CD, Rafii S, Seandel M
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Epigenetic profiles signify cell fate plasticity in unipotent spermatogonial stem and progenitor cells
NATURE COMMUNICATIONS 2016 APR; 7(?):? Article 11275
Spermatogonial stem and progenitor cells (SSCs) generate adult male gametes. During in vitro expansion, these unipotent murine cells spontaneously convert to multipotent adult spermatogonial-derived stem cells (MASCs). Here we investigate this conversion process through integrative transcriptomic and epigenomic analyses. We find in SSCs that promoters essential to maintenance and differentiation of embryonic stem cells (ESCs) are enriched with histone H3-lysine4 and -lysine 27 trimethylations. These bivalent modifications are maintained at most somatic promoters after conversion, bestowing MASCs an ESC-like promoter chromatin. At enhancers, the core pluripotency circuitry is activated partially in SSCs and completely in MASCs, concomitant with loss of germ cell-specific gene expression and initiation of embryonic-like programs. Furthermore, SSCs in vitro maintain the epigenomic characteristics of germ cells in vivo. Our observations suggest that SSCs encode innate plasticity through the epigenome and that both conversion of promoter chromatin states and activation of cell type-specific enhancers are prominent features of reprogramming.