PMCC PMCC

Search tips
Search criteria

Advanced
Results 1-25 (82)
 

Clipboard (0)
None

Select a Filter Below

Journals
more »
Year of Publication
more »
2.  Association of RNA Biosignatures With Bacterial Infections in Febrile Infants Aged 60 Days or Younger 
JAMA  2016;316(8):846-857.
IMPORTANCE
Young febrile infants are at substantial risk of serious bacterial infections; however, the current culture-based diagnosis has limitations. Analysis of host expression patterns (“RNA biosignatures”) in response to infections may provide an alternative diagnostic approach.
OBJECTIVE
To assess whether RNA biosignatures can distinguish febrile infants aged 60 days or younger with and without serious bacterial infections.
DESIGN, SETTING, AND PARTICIPANTS
Prospective observational study involving a convenience sample of febrile infants 60 days or younger evaluated for fever (temperature >38° C) in 22 emergency departments from December 2008 to December 2010 who underwent laboratory evaluations including blood cultures. A random sample of infants with and without bacterial infections was selected for RNA biosignature analysis. Afebrile healthy infants served as controls. Blood samples were collected for cultures and RNA biosignatures. Bioinformatics tools were applied to define RNA biosignatures to classify febrile infants by infection type.
EXPOSURE
RNA biosignatures compared with cultures for discriminating febrile infants with and without bacterial infections and infants with bacteremia from those without bacterial infections.
MAIN OUTCOMES AND MEASURES
Bacterial infection confirmed by culture. Performance of RNA biosignatures was compared with routine laboratory screening tests and Yale Observation Scale (YOS) scores.
RESULTS
Of 1883 febrile infants (median age, 37 days; 55.7%boys), RNA biosignatures were measured in 279 randomly selected infants (89 with bacterial infections—including 32 with bacteremia and 15 with urinary tract infections—and 190 without bacterial infections), and 19 afebrile healthy infants. Sixty-six classifier genes were identified that distinguished infants with and without bacterial infections in the test set with 87%(95%CI, 73%-95%) sensitivity and 89% (95%CI, 81%-93%) specificity. Ten classifier genes distinguished infants with bacteremia from those without bacterial infections in the test set with 94%(95%CI, 70%-100%) sensitivity and 95%(95%CI, 88%-98%) specificity. The incremental C statistic for the RNA biosignatures over the YOS score was 0.37 (95%CI, 0.30–0.43).
CONCLUSIONS AND RELEVANCE
In this preliminary study, RNA biosignatures were defined to distinguish febrile infants aged 60 days or younger with vs without bacterial infections. Further research with larger populations is needed to refine and validate the estimates of test accuracy and to assess the clinical utility of RNA biosignatures in practice.
doi:10.1001/jama.2016.9207
PMCID: PMC5122927  PMID: 27552618
3.  31st Annual Meeting and Associated Programs of the Society for Immunotherapy of Cancer (SITC 2016): part two 
Ager, Casey | Reilley, Matthew | Nicholas, Courtney | Bartkowiak, Todd | Jaiswal, Ashvin | Curran, Michael | Albershardt, Tina C. | Bajaj, Anshika | Archer, Jacob F. | Reeves, Rebecca S. | Ngo, Lisa Y. | Berglund, Peter | ter Meulen, Jan | Denis, Caroline | Ghadially, Hormas | Arnoux, Thomas | Chanuc, Fabien | Fuseri, Nicolas | Wilkinson, Robert W. | Wagtmann, Nicolai | Morel, Yannis | Andre, Pascale | Atkins, Michael B. | Carlino, Matteo S. | Ribas, Antoni | Thompson, John A. | Choueiri, Toni K. | Hodi, F. Stephen | Hwu, Wen-Jen | McDermott, David F. | Atkinson, Victoria | Cebon, Jonathan S. | Fitzharris, Bernie | Jameson, Michael B. | McNeil, Catriona | Hill, Andrew G. | Mangin, Eric | Ahamadi, Malidi | van Vugt, Marianne | van Zutphen, Mariëlle | Ibrahim, Nageatte | Long, Georgina V. | Gartrell, Robyn | Blake, Zoe | Simoes, Ines | Fu, Yichun | Saito, Takuro | Qian, Yingzhi | Lu, Yan | Saenger, Yvonne M. | Budhu, Sadna | De Henau, Olivier | Zappasodi, Roberta | Schlunegger, Kyle | Freimark, Bruce | Hutchins, Jeff | Barker, Christopher A. | Wolchok, Jedd D. | Merghoub, Taha | Burova, Elena | Allbritton, Omaira | Hong, Peter | Dai, Jie | Pei, Jerry | Liu, Matt | Kantrowitz, Joel | Lai, Venus | Poueymirou, William | MacDonald, Douglas | Ioffe, Ella | Mohrs, Markus | Olson, William | Thurston, Gavin | Capasso, Cristian | Frascaro, Federica | Carpi, Sara | Tähtinen, Siri | Feola, Sara | Fusciello, Manlio | Peltonen, Karita | Martins, Beatriz | Sjöberg, Madeleine | Pesonen, Sari | Ranki, Tuuli | Kyruk, Lukasz | Ylösmäki, Erkko | Cerullo, Vincenzo | Cerignoli, Fabio | Xi, Biao | Guenther, Garret | Yu, Naichen | Muir, Lincoln | Zhao, Leyna | Abassi, Yama | Cervera-Carrascón, Víctor | Siurala, Mikko | Santos, João | Havunen, Riikka | Parviainen, Suvi | Hemminki, Akseli | Dalgleish, Angus | Mudan, Satvinder | DeBenedette, Mark | Plachco, Ana | Gamble, Alicia | Grogan, Elizabeth W. | Krisko, John | Tcherepanova, Irina | Nicolette, Charles | Dhupkar, Pooja | Yu, Ling | Kleinerman, Eugenie S. | Gordon, Nancy | Grenga, Italia | Lepone, Lauren | Gameiro, Sofia | Knudson, Karin M. | Fantini, Massimo | Tsang, Kwong | Hodge, James | Donahue, Renee | Schlom, Jeffrey | Evans, Elizabeth | Bussler, Holm | Mallow, Crystal | Reilly, Christine | Torno, Sebold | Scrivens, Maria | Foster, Cathie | Howell, Alan | Balch, Leslie | Knapp, Alyssa | Leonard, John E. | Paris, Mark | Fisher, Terry | Hu-Lieskovan, Siwen | Ribas, Antoni | Smith, Ernest | Zauderer, Maurice | Fogler, William | Franklin, Marilyn | Thayer, Matt | Saims, Dan | Magnani, John L. | Gong, Jian | Gray, Michael | Hutchins, Jeff | Freimark, Bruce | Fromm, George | de Silva, Suresh | Giffin, Louise | Xu, Xin | Rose, Jason | Schreiber, Taylor H. | Fantini, Massimo | Gameiro, Sofia R. | Knudson, Karin M. | Clavijo, Paul E. | Allen, Clint T. | Donahue, Renee | Lepone, Lauren | Grenga, Italia | Hodge, James W. | Tsang, Kwong Y. | Schlom, Jeffrey | Gray, Michael | Gong, Jian | Hutchins, Jeff | Freimark, Bruce | Grogan, Jane | Manieri, Nicholas | Chiang, Eugene | Caplazi, Patrick | Yadav, Mahesh | Hagner, Patrick | Chiu, Hsiling | Waldman, Michelle | Klippel, Anke | Thakurta, Anjan | Pourdehnad, Michael | Gandhi, Anita | Henrich, Ian | Quick, Laura | Young, Rob | Chou, Margaret | Hotson, Andrew | Willingham, Stephen | Ho, Po | Choy, Carmen | Laport, Ginna | McCaffery, Ian | Miller, Richard | Tipton, Kimberly A. | Wong, Kenneth R. | Singson, Victoria | Wong, Chihunt | Chan, Chanty | Huang, Yuanhiu | Liu, Shouchun | Richardson, Jennifer H. | Kavanaugh, W. Michael | West, James | Irving, Bryan A. | Tipton, Kimberly A. | Wong, Kenneth R. | Singson, Victoria | Wong, Chihunt | Chan, Chanty | Huang, Yuanhiu | Liu, Shouchun | Richardson, Jennifer H. | Kavanaugh, W. Michael | West, James | Irving, Bryan A. | Jaini, Ritika | Loya, Matthew | Eng, Charis | Johnson, Melissa L. | Adjei, Alex A. | Opyrchal, Mateusz | Ramalingam, Suresh | Janne, Pasi A. | Dominguez, George | Gabrilovich, Dmitry | de Leon, Laura | Hasapidis, Jeannette | Diede, Scott J. | Ordentlich, Peter | Cruickshank, Scott | Meyers, Michael L. | Hellmann, Matthew D. | Kalinski, Pawel | Zureikat, Amer | Edwards, Robert | Muthuswamy, Ravi | Obermajer, Nataša | Urban, Julie | Butterfield, Lisa H. | Gooding, William | Zeh, Herbert | Bartlett, David | Zubkova, Olga | Agapova, Larissa | Kapralova, Marina | Krasovskaia, Liudmila | Ovsepyan, Armen | Lykov, Maxim | Eremeev, Artem | Bokovanov, Vladimir | Grigoryeva, Olga | Karpov, Andrey | Ruchko, Sergey | Nicolette, Charles | Shuster, Alexandr | Khalil, Danny N. | Campesato, Luis Felipe | Li, Yanyun | Merghoub, Taha | Wolchok, Jedd D. | Lazorchak, Adam S. | Patterson, Troy D. | Ding, Yueyun | Sasikumar, Pottayil | Sudarshan, Naremaddepalli | Gowda, Nagaraj | Ramachandra, Raghuveer | Samiulla, Dodheri | Giri, Sanjeev | Eswarappa, Rajesh | Ramachandra, Murali | Tuck, David | Wyant, Timothy | Leshem, Jasmin | Liu, Xiu-fen | Bera, Tapan | Terabe, Masaki | Bossenmaier, Birgit | Niederfellner, Gerhard | Reiter, Yoram | Pastan, Ira | Xia, Leiming | Xia, Yang | Hu, Yangyang | Wang, Yi | Bao, Yangyi | Dai, Fu | Huang, Shiang | Hurt, Elaine | Hollingsworth, Robert E. | Lum, Lawrence G. | Chang, Alfred E. | Wicha, Max S. | Li, Qiao | Mace, Thomas | Makhijani, Neil | Talbert, Erin | Young, Gregory | Guttridge, Denis | Conwell, Darwin | Lesinski, Gregory B. | Gonzales, Rodney JM Macedo | Huffman, Austin P. | Wang, Ximi K. | Reshef, Ran | MacKinnon, Andy | Chen, Jason | Gross, Matt | Marguier, Gisele | Shwonek, Peter | Sotirovska, Natalija | Steggerda, Susanne | Parlati, Francesco | Makkouk, Amani | Bennett, Mark K. | Chen, Jason | Emberley, Ethan | Gross, Matt | Huang, Tony | Li, Weiqun | MacKinnon, Andy | Marguier, Gisele | Neou, Silinda | Pan, Alison | Zhang, Jing | Zhang, Winter | Parlati, Francesco | Marshall, Netonia | Marron, Thomas U. | Agudo, Judith | Brown, Brian | Brody, Joshua | McQuinn, Christopher | Mace, Thomas | Farren, Matthew | Komar, Hannah | Shakya, Reena | Young, Gregory | Ludwug, Thomas | Lesinski, Gregory B. | Morillon, Y. Maurice | Hammond, Scott A. | Schlom, Jeffrey | Greiner, John W. | Nath, Pulak R. | Schwartz, Anthony L. | Maric, Dragan | Roberts, David D. | Obermajer, Nataša | Bartlett, David | Kalinski, Pawel | Naing, Aung | Papadopoulos, Kyriakos P. | Autio, Karen A. | Wong, Deborah J. | Patel, Manish | Falchook, Gerald | Pant, Shubham | Ott, Patrick A. | Whiteside, Melinda | Patnaik, Amita | Mumm, John | Janku, Filip | Chan, Ivan | Bauer, Todd | Colen, Rivka | VanVlasselaer, Peter | Brown, Gail L. | Tannir, Nizar M. | Oft, Martin | Infante, Jeffrey | Lipson, Evan | Gopal, Ajay | Neelapu, Sattva S. | Armand, Philippe | Spurgeon, Stephen | Leonard, John P. | Hodi, F. Stephen | Sanborn, Rachel E. | Melero, Ignacio | Gajewski, Thomas F. | Maurer, Matthew | Perna, Serena | Gutierrez, Andres A. | Clynes, Raphael | Mitra, Priyam | Suryawanshi, Satyendra | Gladstone, Douglas | Callahan, Margaret K. | Crooks, James | Brown, Sheila | Gauthier, Audrey | de Boisferon, Marc Hillairet | MacDonald, Andrew | Brunet, Laura Rosa | Rothwell, William T. | Bell, Peter | Wilson, James M. | Sato-Kaneko, Fumi | Yao, Shiyin | Zhang, Shannon S. | Carson, Dennis A. | Guiducci, Cristina | Coffman, Robert L. | Kitaura, Kazutaka | Matsutani, Takaji | Suzuki, Ryuji | Hayashi, Tomoko | Cohen, Ezra E. W. | Schaer, David | Li, Yanxia | Dobkin, Julie | Amatulli, Michael | Hall, Gerald | Doman, Thompson | Manro, Jason | Dorsey, Frank Charles | Sams, Lillian | Holmgaard, Rikke | Persaud, Krishnadatt | Ludwig, Dale | Surguladze, David | Kauh, John S. | Novosiadly, Ruslan | Kalos, Michael | Driscoll, Kyla | Pandha, Hardev | Ralph, Christy | Harrington, Kevin | Curti, Brendan | Sanborn, Rachel E. | Akerley, Wallace | Gupta, Sumati | Melcher, Alan | Mansfield, David | Kaufman, David R. | Schmidt, Emmett | Grose, Mark | Davies, Bronwyn | Karpathy, Roberta | Shafren, Darren | Shamalov, Katerina | Cohen, Cyrille | Sharma, Naveen | Allison, James | Shekarian, Tala | Valsesia-Wittmann, Sandrine | Caux, Christophe | Marabelle, Aurelien | Slomovitz, Brian M. | Moore, Kathleen M. | Youssoufian, Hagop | Posner, Marshall | Tewary, Poonam | Brooks, Alan D. | Xu, Ya-Ming | Wijeratne, Kithsiri | Gunatilaka, Leslie A. A. | Sayers, Thomas J. | Vasilakos, John P. | Alston, Tesha | Dovedi, Simon | Elvecrog, James | Grigsby, Iwen | Herbst, Ronald | Johnson, Karen | Moeckly, Craig | Mullins, Stefanie | Siebenaler, Kristen | SternJohn, Julius | Tilahun, Ashenafi | Tomai, Mark A. | Vogel, Katharina | Wilkinson, Robert W. | Vietsch, Eveline E. | Wellstein, Anton | Wythes, Martin | Crosignani, Stefano | Tumang, Joseph | Alekar, Shilpa | Bingham, Patrick | Cauwenberghs, Sandra | Chaplin, Jenny | Dalvie, Deepak | Denies, Sofie | De Maeseneire, Coraline | Feng, JunLi | Frederix, Kim | Greasley, Samantha | Guo, Jie | Hardwick, James | Kaiser, Stephen | Jessen, Katti | Kindt, Erick | Letellier, Marie-Claire | Li, Wenlin | Maegley, Karen | Marillier, Reece | Miller, Nichol | Murray, Brion | Pirson, Romain | Preillon, Julie | Rabolli, Virginie | Ray, Chad | Ryan, Kevin | Scales, Stephanie | Srirangam, Jay | Solowiej, Jim | Stewart, Al | Streiner, Nicole | Torti, Vince | Tsaparikos, Konstantinos | Zheng, Xianxian | Driessens, Gregory | Gomes, Bruno | Kraus, Manfred | Xu, Chunxiao | Zhang, Yanping | Kradjian, Giorgio | Qin, Guozhong | Qi, Jin | Xu, Xiaomei | Marelli, Bo | Yu, Huakui | Guzman, Wilson | Tighe, Rober | Salazar, Rachel | Lo, Kin-Ming | English, Jessie | Radvanyi, Laszlo | Lan, Yan | Zappasodi, Roberta | Budhu, Sadna | Hellmann, Matthew D. | Postow, Michael | Senbabaoglu, Yasin | Gasmi, Billel | Zhong, Hong | Li, Yanyun | Liu, Cailian | Hirschhorhn-Cymerman, Daniel | Wolchok, Jedd D. | Merghoub, Taha | Zha, Yuanyuan | Malnassy, Gregory | Fulton, Noreen | Park, Jae-Hyun | Stock, Wendy | Nakamura, Yusuke | Gajewski, Thomas F. | Liu, Hongtao | Ju, Xiaoming | Kosoff, Rachelle | Ramos, Kimberly | Coder, Brandon | Petit, Robert | Princiotta, Michael | Perry, Kyle | Zou, Jun | Arina, Ainhoa | Fernandez, Christian | Zheng, Wenxin | Beckett, Michael A. | Mauceri, Helena J. | Fu, Yang-Xin | Weichselbaum, Ralph R. | DeBenedette, Mark | Lewis, Whitney | Gamble, Alicia | Nicolette, Charles | Han, Yanyan | Wu, Yeting | Yang, Chou | Huang, Jing | Wu, Dongyun | Li, Jin | Liang, Xiaoling | Zhou, Xiangjun | Hou, Jinlin | Hassan, Raffit | Jahan, Thierry | Antonia, Scott J. | Kindler, Hedy L. | Alley, Evan W. | Honarmand, Somayeh | Liu, Weiqun | Leong, Meredith L. | Whiting, Chan C. | Nair, Nitya | Enstrom, Amanda | Lemmens, Edward E. | Tsujikawa, Takahiro | Kumar, Sushil | Coussens, Lisa M. | Murphy, Aimee L. | Brockstedt, Dirk G. | Koch, Sven D. | Sebastian, Martin | Weiss, Christian | Früh, Martin | Pless, Miklos | Cathomas, Richard | Hilbe, Wolfgang | Pall, Georg | Wehler, Thomas | Alt, Jürgen | Bischoff, Helge | Geissler, Michael | Griesinger, Frank | Kollmeier, Jens | Papachristofilou, Alexandros | Doener, Fatma | Fotin-Mleczek, Mariola | Hipp, Madeleine | Hong, Henoch S. | Kallen, Karl-Josef | Klinkhardt, Ute | Stosnach, Claudia | Scheel, Birgit | Schroeder, Andreas | Seibel, Tobias | Gnad-Vogt, Ulrike | Zippelius, Alfred | Park, Ha-Ram | Ahn, Yong-Oon | Kim, Tae Min | Kim, Soyeon | Kim, Seulki | Lee, Yu Soo | Keam, Bhumsuk | Kim, Dong-Wan | Heo, Dae Seog | Pilon-Thomas, Shari | Weber, Amy | Morse, Jennifer | Kodumudi, Krithika | Liu, Hao | Mullinax, John | Sarnaik, Amod A. | Pike, Luke | Bang, Andrew | Ott, Patrick A. | Balboni, Tracy | Taylor, Allison | Spektor, Alexander | Wilhite, Tyler | Krishnan, Monica | Cagney, Daniel | Alexander, Brian | Aizer, Ayal | Buchbinder, Elizabeth | Awad, Mark | Ghandi, Leena | Hodi, F. Stephen | Schoenfeld, Jonathan | Schwartz, Anthony L. | Nath, Pulak R. | Lessey-Morillon, Elizabeth | Ridnour, Lisa | Roberts, David D. | Segal, Neil H. | Sharma, Manish | Le, Dung T. | Ott, Patrick A. | Ferris, Robert L. | Zelenetz, Andrew D. | Neelapu, Sattva S. | Levy, Ronald | Lossos, Izidore S. | Jacobson, Caron | Ramchandren, Radhakrishnan | Godwin, John | Colevas, A. Dimitrios | Meier, Roland | Krishnan, Suba | Gu, Xuemin | Neely, Jaclyn | Suryawanshi, Satyendra | Timmerman, John | Vanpouille-Box, Claire I. | Formenti, Silvia C. | Demaria, Sandra | Wennerberg, Erik | Mediero, Aranzazu | Cronstein, Bruce N. | Formenti, Silvia C. | Demaria, Sandra | Gustafson, Michael P. | DiCostanzo, AriCeli | Wheatley, Courtney | Kim, Chul-Ho | Bornschlegl, Svetlana | Gastineau, Dennis A. | Johnson, Bruce D. | Dietz, Allan B. | MacDonald, Cameron | Bucsek, Mark | Qiao, Guanxi | Hylander, Bonnie | Repasky, Elizabeth | Turbitt, William J. | Xu, Yitong | Mastro, Andrea | Rogers, Connie J. | Withers, Sita | Wang, Ziming | Khuat, Lam T. | Dunai, Cordelia | Blazar, Bruce R. | Longo, Dan | Rebhun, Robert | Grossenbacher, Steven K. | Monjazeb, Arta | Murphy, William J. | Rowlinson, Scott | Agnello, Giulia | Alters, Susan | Lowe, David | Scharping, Nicole | Menk, Ashley V. | Whetstone, Ryan | Zeng, Xue | Delgoffe, Greg M. | Santos, Patricia M. | Menk, Ashley V. | Shi, Jian | Delgoffe, Greg M. | Butterfield, Lisa H. | Whetstone, Ryan | Menk, Ashley V. | Scharping, Nicole | Delgoffe, Greg | Nagasaka, Misako | Sukari, Ammar | Byrne-Steele, Miranda | Pan, Wenjing | Hou, Xiaohong | Brown, Brittany | Eisenhower, Mary | Han, Jian | Collins, Natalie | Manguso, Robert | Pope, Hans | Shrestha, Yashaswi | Boehm, Jesse | Haining, W. Nicholas | Cron, Kyle R. | Sivan, Ayelet | Aquino-Michaels, Keston | Gajewski, Thomas F. | Orecchioni, Marco | Bedognetti, Davide | Hendrickx, Wouter | Fuoco, Claudia | Spada, Filomena | Sgarrella, Francesco | Cesareni, Gianni | Marincola, Francesco | Kostarelos, Kostas | Bianco, Alberto | Delogu, Lucia | Hendrickx, Wouter | Roelands, Jessica | Boughorbel, Sabri | Decock, Julie | Presnell, Scott | Wang, Ena | Marincola, Franco M. | Kuppen, Peter | Ceccarelli, Michele | Rinchai, Darawan | Chaussabel, Damien | Miller, Lance | Bedognetti, Davide | Nguyen, Andrew | Sanborn, J. Zachary | Vaske, Charles | Rabizadeh, Shahrooz | Niazi, Kayvan | Benz, Steven | Patel, Shashank | Restifo, Nicholas | White, James | Angiuoli, Sam | Sausen, Mark | Jones, Sian | Sevdali, Maria | Simmons, John | Velculescu, Victor | Diaz, Luis | Zhang, Theresa | Sims, Jennifer S. | Barton, Sunjay M. | Gartrell, Robyn | Kadenhe-Chiweshe, Angela | Dela Cruz, Filemon | Turk, Andrew T. | Lu, Yan | Mazzeo, Christopher F. | Kung, Andrew L. | Bruce, Jeffrey N. | Saenger, Yvonne M. | Yamashiro, Darrell J. | Connolly, Eileen P. | Baird, Jason | Crittenden, Marka | Friedman, David | Xiao, Hong | Leidner, Rom | Bell, Bryan | Young, Kristina | Gough, Michael | Bian, Zhen | Kidder, Koby | Liu, Yuan | Curran, Emily | Chen, Xiufen | Corrales, Leticia P. | Kline, Justin | Dunai, Cordelia | Aguilar, Ethan G. | Khuat, Lam T. | Murphy, William J. | Guerriero, Jennifer | Sotayo, Alaba | Ponichtera, Holly | Pourzia, Alexandra | Schad, Sara | Carrasco, Ruben | Lazo, Suzan | Bronson, Roderick | Letai, Anthony | Kornbluth, Richard S. | Gupta, Sachin | Termini, James | Guirado, Elizabeth | Stone, Geoffrey W. | Meyer, Christina | Helming, Laura | Tumang, Joseph | Wilson, Nicholas | Hofmeister, Robert | Radvanyi, Laszlo | Neubert, Natalie J. | Tillé, Laure | Barras, David | Soneson, Charlotte | Baumgaertner, Petra | Rimoldi, Donata | Gfeller, David | Delorenzi, Mauro | Fuertes Marraco, Silvia A. | Speiser, Daniel E. | Abraham, Tara S. | Xiang, Bo | Magee, Michael S. | Waldman, Scott A. | Snook, Adam E. | Blogowski, Wojciech | Zuba-Surma, Ewa | Budkowska, Marta | Salata, Daria | Dolegowska, Barbara | Starzynska, Teresa | Chan, Leo | Somanchi, Srinivas | McCulley, Kelsey | Lee, Dean | Buettner, Nico | Shi, Feng | Myers, Paisley T. | Curbishley, Stuart | Penny, Sarah A. | Steadman, Lora | Millar, David | Speers, Ellen | Ruth, Nicola | Wong, Gabriel | Thimme, Robert | Adams, David | Cobbold, Mark | Thomas, Remy | Hendrickx, Wouter | Al-Muftah, Mariam | Decock, Julie | Wong, Michael KK | Morse, Michael | McDermott, David F. | Clark, Joseph I. | Kaufman, Howard L. | Daniels, Gregory A. | Hua, Hong | Rao, Tharak | Dutcher, Janice P. | Kang, Kai | Saunthararajah, Yogen | Velcheti, Vamsidhar | Kumar, Vikas | Anwar, Firoz | Verma, Amita | Chheda, Zinal | Kohanbash, Gary | Sidney, John | Okada, Kaori | Shrivastav, Shruti | Carrera, Diego A. | Liu, Shuming | Jahan, Naznin | Mueller, Sabine | Pollack, Ian F. | Carcaboso, Angel M. | Sette, Alessandro | Hou, Yafei | Okada, Hideho | Field, Jessica J. | Zeng, Weiping | Shih, Vincent FS | Law, Che-Leung | Senter, Peter D. | Gardai, Shyra J. | Okeley, Nicole M. | Penny, Sarah A. | Abelin, Jennifer G. | Saeed, Abu Z. | Malaker, Stacy A. | Myers, Paisley T. | Shabanowitz, Jeffrey | Ward, Stephen T. | Hunt, Donald F. | Cobbold, Mark | Profusek, Pam | Wood, Laura | Shepard, Dale | Grivas, Petros | Kapp, Kerstin | Volz, Barbara | Oswald, Detlef | Wittig, Burghardt | Schmidt, Manuel | Sefrin, Julian P. | Hillringhaus, Lars | Lifke, Valeria | Lifke, Alexander | Skaletskaya, Anna | Ponte, Jose | Chittenden, Thomas | Setiady, Yulius | Valsesia-Wittmann, Sandrine | Sivado, Eva | Thomas, Vincent | El Alaoui, Meddy | Papot, Sébastien | Dumontet, Charles | Dyson, Mike | McCafferty, John | El Alaoui, Said | Verma, Amita | Kumar, Vikas | Bommareddy, Praveen K. | Kaufman, Howard L. | Zloza, Andrew | Kohlhapp, Frederick | Silk, Ann W. | Jhawar, Sachin | Paneque, Tomas | Bommareddy, Praveen K. | Kohlhapp, Frederick | Newman, Jenna | Beltran, Pedro | Zloza, Andrew | Kaufman, Howard L. | Cao, Felicia | Hong, Bang-Xing | Rodriguez-Cruz, Tania | Song, Xiao-Tong | Gottschalk, Stephen | Calderon, Hugo | Illingworth, Sam | Brown, Alice | Fisher, Kerry | Seymour, Len | Champion, Brian | Eriksson, Emma | Wenthe, Jessica | Hellström, Ann-Charlotte | Paul-Wetterberg, Gabriella | Loskog, Angelica | Eriksson, Emma | Milenova, Ioanna | Wenthe, Jessica | Ståhle, Magnus | Jarblad-Leja, Justyna | Ullenhag, Gustav | Dimberg, Anna | Moreno, Rafael | Alemany, Ramon | Loskog, Angelica | Eriksson, Emma | Milenova, Ioanna | Moreno, Rafael | Alemany, Ramon
Journal for Immunotherapy of Cancer  2016;4(Suppl 1):107-221.
doi:10.1186/s40425-016-0173-6
PMCID: PMC5123381
4.  Increased abundance of ADAM9 transcripts in the blood is associated with tissue damage 
F1000Research  2016;4:89.
Background: Members of the ADAM (a disintegrin and metalloprotease domain) family have emerged as critical regulators of cell-cell signaling during development and homeostasis. ADAM9 is consistently overexpressed in various human cancers, and has been shown to play an important role in tumorigenesis. However, little is known about the involvement of ADAM9 during immune-mediated processes.
Results: Mining of an extensive compendium of transcriptomic datasets identified important gaps in knowledge regarding the possible role of ADAM9 in immunological homeostasis and inflammation: 1) The abundance of ADAM9 transcripts in the blood was increased in patients with acute infection but, 2) changed very little after in vitro exposure to a wide range of pathogen-associated molecular patterns (PAMPs). 3) Furthermore it was found to increase significantly in subjects as a result of tissue injury or tissue remodeling, in absence of infectious processes.
Conclusions: Our findings indicate that ADAM9 may constitute a valuable biomarker for the assessment of tissue damage, especially in clinical situations where other inflammatory markers are confounded by infectious processes.
doi:10.12688/f1000research.6241.2
PMCID: PMC5130078  PMID: 27990250
ADAM9; Data mining; Transcriptomics; RNAseq; Microarray
5.  The Transcriptional Signature of Active Tuberculosis Reflects Symptom Status in Extra-Pulmonary and Pulmonary Tuberculosis 
PLoS ONE  2016;11(10):e0162220.
Background
Mycobacterium tuberculosis infection is a leading cause of infectious death worldwide. Gene-expression microarray studies profiling the blood transcriptional response of tuberculosis (TB) patients have been undertaken in order to better understand the host immune response as well as to identify potential biomarkers of disease. To date most of these studies have focused on pulmonary TB patients with gene-expression profiles of extra-pulmonary TB patients yet to be compared to those of patients with pulmonary TB or sarcoidosis.
Methods
A novel cohort of patients with extra-pulmonary TB and sarcoidosis was recruited and the transcriptional response of these patients compared to those with pulmonary TB using a variety of transcriptomic approaches including testing a previously defined 380 gene meta-signature of active TB.
Results
The 380 meta-signature broadly differentiated active TB from healthy controls in this new dataset consisting of pulmonary and extra-pulmonary TB. The top 15 genes from this meta-signature had a lower sensitivity for differentiating extra-pulmonary TB from healthy controls as compared to pulmonary TB. We found the blood transcriptional responses in pulmonary and extra-pulmonary TB to be heterogeneous and to reflect the extent of symptoms of disease.
Conclusions
The transcriptional signature in extra-pulmonary TB demonstrated heterogeneity of gene expression reflective of symptom status, while the signature of pulmonary TB was distinct, based on a higher proportion of symptomatic individuals. These findings are of importance for the rational design and implementation of mRNA based TB diagnostics.
doi:10.1371/journal.pone.0162220
PMCID: PMC5051928  PMID: 27706152
6.  Transcriptomic evidence for modulation of host inflammatory responses during febrile Plasmodium falciparum malaria 
Scientific Reports  2016;6:31291.
Identifying molecular predictors and mechanisms of malaria disease is important for understanding how Plasmodium falciparum malaria is controlled. Transcriptomic studies in humans have so far been limited to retrospective analysis of blood samples from clinical cases. In this prospective, proof-of-principle study, we compared whole-blood RNA-seq profiles at pre-and post-infection time points from Malian adults who were either asymptomatic (n = 5) or febrile (n = 3) during their first seasonal PCR-positive P. falciparum infection with those from malaria-naïve Dutch adults after a single controlled human malaria infection (n = 5). Our data show a graded activation of pathways downstream of pro-inflammatory cytokines, with the highest activation in malaria-naïve Dutch individuals and significantly reduced activation in malaria-experienced Malians. Newly febrile and asymptomatic infections in Malians were statistically indistinguishable except for genes activated by pro-inflammatory cytokines. The combined data provide a molecular basis for the development of a pyrogenic threshold as individuals acquire immunity to clinical malaria.
doi:10.1038/srep31291
PMCID: PMC4978957  PMID: 27506615
8.  A curated transcriptome dataset collection to investigate the development and differentiation of the human placenta and its associated pathologies 
F1000Research  2016;5:305.
Compendia of large-scale datasets made available in public repositories provide a precious opportunity to discover new biomedical phenomena and to fill gaps in our current knowledge. In order to foster novel insights it is necessary to ensure that these data are made readily accessible to research investigators in an interpretable format. Here we make a curated, public, collection of transcriptome datasets relevant to human placenta biology available for further analysis and interpretation via an interactive data browsing interface. We identified and retrieved a total of 24 datasets encompassing 759 transcriptome profiles associated with the development of the human placenta and associated pathologies from the NCBI Gene Expression Omnibus (GEO) and present them in a custom web-based application designed for interactive query and visualization of integrated large-scale datasets ( http://placentalendocrinology.gxbsidra.org/dm3/landing.gsp). We also performed quality control checks using relevant biological markers. Multiple sample groupings and rank lists were subsequently created to facilitate data query and interpretation. Via this interface, users can create web-links to customized graphical views which may be inserted into manuscripts for further dissemination, or e-mailed to collaborators for discussion. The tool also enables users to browse a single gene across different projects, providing a mechanism for  developing new perspectives on the role of a molecule of interest across multiple biological states. The dataset collection we created here is available at: http://placentalendocrinology.gxbsidra.org/dm3.
doi:10.12688/f1000research.8210.2
PMCID: PMC4897750  PMID: 27303626
Transcriptomics; Bioinformatics; Placenta; Trophoblast; Diabetes; Pre-eclampsia; IUGR; trophoblast differentiation
9.  A curated compendium of monocyte transcriptome datasets of relevance to human monocyte immunobiology research 
F1000Research  2016;5:291.
Systems-scale profiling approaches have become widely used in translational research settings. The resulting accumulation of large-scale datasets in public repositories represents a critical opportunity to promote insight and foster knowledge discovery. However, resources that can serve as an interface between biomedical researchers and such vast and heterogeneous dataset collections are needed in order to fulfill this potential. Recently, we have developed an interactive data browsing and visualization web application, the Gene Expression Browser (GXB). This tool can be used to overlay deep molecular phenotyping data with rich contextual information about analytes, samples and studies along with ancillary clinical or immunological profiling data. In this note, we describe a curated compendium of 93 public datasets generated in the context of human monocyte immunological studies, representing a total of 4,516 transcriptome profiles. Datasets were uploaded to an instance of GXB along with study description and sample annotations. Study samples were arranged in different groups. Ranked gene lists were generated based on relevant group comparisons. This resource is publicly available online at http://monocyte.gxbsidra.org/dm3/landing.gsp.
doi:10.12688/f1000research.8182.2
PMCID: PMC4856113  PMID: 27158452
Monocyte; Transcriptomics; Gene Expression Browser; Immunology; Bioinformatics
10.  Life-threatening influenza and impaired interferon amplification in human IRF7 deficiency 
Science (New York, N.Y.)  2015;348(6233):448-453.
Severe influenza disease strikes otherwise healthy children and remains unexplained. We report compound heterozygous null mutations in IRF7, which encodes the transcription factor interferon regulatory factor 7, in an otherwise healthy child who suffered life-threatening influenza during primary infection. In response to influenza virus, the patient’s leukocytes and plasmacytoid dendritic cells produced very little type I and III interferons (IFNs). Moreover, the patient’s dermal fibroblasts and induced pluripotent stem cell (iPSC)–derived pulmonary epithelial cells produced reduced amounts of type I IFN and displayed increased influenza virus replication. These findings suggest that IRF7-dependent amplification of type I and III IFNs is required for protection against primary infection by influenza virus in humans. They also show that severe influenza may result from single-gene inborn errors of immunity.
doi:10.1126/science.aaa1578
PMCID: PMC4431581  PMID: 25814066
11.  The Blood Transcriptome of Experimental Melioidosis Reflects Disease Severity and Shows Considerable Similarity with the Human Disease 
Melioidosis, a severe human disease caused by the bacterium Burkholderia pseudomallei, has a wide spectrum of clinical manifestations ranging from acute septicaemia to chronic localized illness or latent infection. Murine models have been widely used to study the pathogenesis of infection and to evaluate novel therapies or vaccines, but how faithfully they recapitulate the biology of human melioidosis at a molecular level is not known. Here, mice were intranasally infected with either high or low doses of B. pseudomallei to generate either acute, chronic or latent infection and host blood and tissue transcriptional profiles were generated. Acute infection was accompanied by a homogeneous signature associated with induction of multiple innate immune response pathways, such as IL10, TREM1 and IFN-signaling, largely found in both blood and tissue. The transcriptional profile in blood reflected the heterogeneity of chronic infection and quantitatively reflected the severity of disease. Genes associated with fibrosis and tissue remodelling, including MMPs and collagen, were upregulated in chronically infected mice with severe disease. Transcriptional signatures of both acute and chronic melioidosis revealed upregulation of iNOS in tissue, consistent with the expression of IFN-γ, but also Arginase-1, a functional antagonist of the iNOS pathway, and was confirmed by immunohistochemistry. Comparison of these mouse blood datasets by pathway and modular analysis with the blood transcriptional signature of patients with melioidosis showed that many genes were similarly perturbed, including Arginase-1, IL10, TREM1 and IFN-signaling, revealing the common immune response occurring in both mice and humans.
doi:10.4049/jimmunol.1500641
PMCID: PMC4576736  PMID: 26311902
12.  A curated transcriptome dataset collection to investigate the functional programming of human hematopoietic cells in early life 
F1000Research  2016;5:414.
Compendia of large-scale datasets made available in public repositories provide an opportunity to identify and fill gaps in biomedical knowledge. But first, these data need to be made readily accessible to research investigators for interpretation. Here we make available a collection of transcriptome datasets to investigate the functional programming of human hematopoietic cells in early life. Thirty two datasets were retrieved from the NCBI Gene Expression Omnibus (GEO) and loaded in a custom web application called the Gene Expression Browser (GXB), which was designed for interactive query and visualization of integrated large-scale data. Quality control checks were performed. Multiple sample groupings and gene rank lists were created allowing users to reveal age-related differences in transcriptome profiles, changes in the gene expression of neonatal hematopoietic cells to a variety of immune stimulators and modulators, as well as during cell differentiation. Available demographic, clinical, and cell phenotypic information can be overlaid with the gene expression data and used to sort samples. Web links to customized graphical views can be generated and subsequently inserted in manuscripts to report novel findings. GXB also enables browsing of a single gene across projects, thereby providing new perspectives on age- and developmental stage-specific expression of a given gene across the human hematopoietic system. This dataset collection is available at: http://developmentalimmunology.gxbsidra.org/dm3/geneBrowser/list.
doi:10.12688/f1000research.8375.1
PMCID: PMC4916988  PMID: 27347375
transcriptomics; fetal; peripheral blood; umbilical cord blood; immune ontogeny; hematopoietic cells; PBMC; T cells; Tregs; B cells;
13.  HIV-Tuberculosis-Associated Immune Reconstitution Inflammatory Syndrome Is Characterized by Toll-Like-Receptor And Inflammasome Signaling 
Nature communications  2015;6:8451.
Patients with HIV-associated tuberculosis (TB) initiating antiretroviral therapy (ART) may develop immune reconstitution inflammatory syndrome (TB-IRIS). No biomarkers for TB-IRIS have been identified and the underlying mechanisms are unclear. Here we perform transcriptomic profiling of the blood samples of patients with HIV-associated TB. We identify differentially abundant transcripts as early as week 0.5 post-ART initiation that predict downstream activation of proinflammatory cytokines in patients who progress to TB-IRIS. At the characteristic time of TB-IRIS onset (week 2), the signature is characterized by overrepresentation of innate immune mediators including TLR signaling and TREM-1 activation of the inflammasome. In keeping with the transcriptional data, concentrations of plasma cytokines and Caspase-1/5 are elevated in TB-IRIS. Inhibition of MyD88 adaptor and group 1 caspases reduces secretion of cytokines including IL-1 in TB-IRIS patients. These data provide insight on the pathogenesis of TB-IRIS and may assist the development of specific therapies.
doi:10.1038/ncomms9451
PMCID: PMC4595995  PMID: 26399326
14.  Human TYK2 deficiency: Mycobacterial and viral infections without hyper-IgE syndrome 
The Journal of Experimental Medicine  2015;212(10):1641-1662.
Kreins et al. report the identification and immunological characterization of a group of TYK2-deficient patients.
Autosomal recessive, complete TYK2 deficiency was previously described in a patient (P1) with intracellular bacterial and viral infections and features of hyper-IgE syndrome (HIES), including atopic dermatitis, high serum IgE levels, and staphylococcal abscesses. We identified seven other TYK2-deficient patients from five families and four different ethnic groups. These patients were homozygous for one of five null mutations, different from that seen in P1. They displayed mycobacterial and/or viral infections, but no HIES. All eight TYK2-deficient patients displayed impaired but not abolished cellular responses to (a) IL-12 and IFN-α/β, accounting for mycobacterial and viral infections, respectively; (b) IL-23, with normal proportions of circulating IL-17+ T cells, accounting for their apparent lack of mucocutaneous candidiasis; and (c) IL-10, with no overt clinical consequences, including a lack of inflammatory bowel disease. Cellular responses to IL-21, IL-27, IFN-γ, IL-28/29 (IFN-λ), and leukemia inhibitory factor (LIF) were normal. The leukocytes and fibroblasts of all seven newly identified TYK2-deficient patients, unlike those of P1, responded normally to IL-6, possibly accounting for the lack of HIES in these patients. The expression of exogenous wild-type TYK2 or the silencing of endogenous TYK2 did not rescue IL-6 hyporesponsiveness, suggesting that this phenotype was not a consequence of the TYK2 genotype. The core clinical phenotype of TYK2 deficiency is mycobacterial and/or viral infections, caused by impaired responses to IL-12 and IFN-α/β. Moreover, impaired IL-6 responses and HIES do not appear to be intrinsic features of TYK2 deficiency in humans.
doi:10.1084/jem.20140280
PMCID: PMC4577846  PMID: 26304966
15.  A curated transcriptome dataset collection to investigate the immunobiology of HIV infection 
F1000Research  2016;5:327.
Compendia of large-scale datasets available in public repositories provide an opportunity to identify and fill current gaps in biomedical knowledge. But first, these data need to be readily accessible to research investigators for interpretation. Here, we make available a collection of transcriptome datasets relevant to HIV infection. A total of 2717 unique transcriptional profiles distributed among 34 datasets were identified, retrieved from the NCBI Gene Expression Omnibus (GEO), and loaded in a custom web application, the Gene Expression Browser (GXB), designed for interactive query and visualization of integrated large-scale data. Multiple sample groupings and rank lists were created to facilitate dataset query and interpretation via this interface. Web links to customized graphical views can be generated by users and subsequently inserted in manuscripts reporting novel findings, such as discovery notes. The tool also enables browsing of a single gene across projects, which can provide new perspectives on the role of a given molecule across biological systems. This curated dataset collection is available at: http://hiv.gxbsidra.org/dm3/geneBrowser/list.
doi:10.12688/f1000research.8204.1
PMCID: PMC4838008  PMID: 27134731
Transcriptomics; Bioinformatics; Software; HIV; Immune Response; Big Data
16.  A curated transcriptome dataset collection to investigate the development and differentiation of the human placenta and its associated pathologies 
F1000Research  2016;5:305.
Compendia of large-scale datasets made available in public repositories provide a precious opportunity to discover new biomedical phenomena and to fill gaps in our current knowledge. In order to foster novel insights it is necessary to ensure that these data are made readily accessible to research investigators in an interpretable format. Here we make a curated, public, collection of transcriptome datasets relevant to human placenta biology available for further analysis and interpretation via an interactive data browsing interface. We identified and retrieved a total of 24 datasets encompassing 759 transcriptome profiles associated with the development of the human placenta and associated pathologies from the NCBI Gene Expression Omnibus (GEO) and present them in a custom web-based application designed for interactive query and visualization of integrated large-scale datasets ( http://placentalendocrinology.gxbsidra.org/dm3/landing.gsp). We also performed quality control checks using relevant biological markers. Multiple sample groupings and rank lists were subsequently created to facilitate data query and interpretation. Via this interface, users can create web-links to customized graphical views which may be inserted into manuscripts for further dissemination, or e-mailed to collaborators for discussion. The tool also enables users to browse a single gene across different projects, providing a mechanism for  developing new perspectives on the role of a molecule of interest across multiple biological states. The dataset collection we created here is available at: http://placentalendocrinology.gxbsidra.org/dm3.
doi:10.12688/f1000research.8210.1
PMCID: PMC4897750  PMID: 27303626
Transcriptomics; Bioinformatics; Placenta; Trophoblast; Diabetes; Pre-eclampsia; IUGR; trophoblast differentiation
17.  A compendium of monocyte transcriptome datasets to foster biomedical knowledge discovery 
F1000Research  2016;5:291.
Systems-scale profiling approaches have become widely used in translational research settings. The resulting accumulation of large-scale datasets in public repositories represents a critical opportunity to promote insight and foster knowledge discovery. However, resources that can serve as an interface between biomedical researchers and such vast and heterogeneous dataset collections are needed in order to fulfill this potential. Recently, we have developed an interactive data browsing and visualization web application, the Gene Expression Browser (GXB). This tool can be used to overlay deep molecular phenotyping data with rich contextual information about analytes, samples and studies along with ancillary clinical or immunological profiling data. In this note, we describe a curated compendium of 93 public datasets generated in the context of human monocyte immunological studies, representing a total of 4,516 transcriptome profiles. Datasets were uploaded to an instance of GXB along with study description and sample annotations. Study samples were arranged in different groups. Ranked gene lists were generated based on relevant group comparisons. This resource is publicly available online at http://monocyte.gxbsidra.org/dm3/landing.gsp.
doi:10.12688/f1000research.8182.1
PMCID: PMC4856112  PMID: 27158451
Monocyte; Transcriptomics; Gene Expression Browser; Immunology; Bioinformatics
18.  Analysis of Transcriptional Signatures in Response to Listeria monocytogenes Infection Reveals Temporal Changes That Result from Type I Interferon Signaling 
PLoS ONE  2016;11(2):e0150251.
Analysis of the mouse transcriptional response to Listeria monocytogenes infection reveals that a large set of genes are perturbed in both blood and tissue and that these transcriptional responses are enriched for pathways of the immune response. Further we identified enrichment for both type I and type II interferon (IFN) signaling molecules in the blood and tissues upon infection. Since type I IFN signaling has been reported widely to impair bacterial clearance we examined gene expression from blood and tissues of wild type (WT) and type I IFNαβ receptor-deficient (Ifnar1-/-) mice at the basal level and upon infection with L. monocytogenes. Measurement of the fold change response upon infection in the absence of type I IFN signaling demonstrated an upregulation of specific genes at day 1 post infection. A less marked reduction of the global gene expression signature in blood or tissues from infected Ifnar1-/- as compared to WT mice was observed at days 2 and 3 after infection, with marked reduction in key genes such as Oasg1 and Stat2. Moreover, on in depth analysis, changes in gene expression in uninfected mice of key IFN regulatory genes including Irf9, Irf7, Stat1 and others were identified, and although induced by an equivalent degree upon infection this resulted in significantly lower final gene expression levels upon infection of Ifnar1-/- mice. These data highlight how dysregulation of this network in the steady state and temporally upon infection may determine the outcome of this bacterial infection and how basal levels of type I IFN-inducible genes may perturb an optimal host immune response to control intracellular bacterial infections such as L. monocytogenes.
doi:10.1371/journal.pone.0150251
PMCID: PMC4768944  PMID: 26918359
19.  Neuroinvasive West Nile Infection Elicits Elevated and Atypically Polarized T Cell Responses That Promote a Pathogenic Outcome 
PLoS Pathogens  2016;12(1):e1005375.
Most West Nile virus (WNV) infections are asymptomatic, but some lead to neuroinvasive disease with symptoms ranging from disorientation to paralysis and death. Evidence from animal models suggests that neuroinvasive infections may arise as a consequence of impaired immune protection. However, other data suggest that neurologic symptoms may arise as a consequence of immune mediated damage. We demonstrate that elevated immune responses are present in neuroinvasive disease by directly characterizing WNV-specific T cells in subjects with laboratory documented infections using human histocompatibility leukocyte antigen (HLA) class II tetramers. Subjects with neuroinvasive infections had higher overall numbers of WNV-specific T cells than those with asymptomatic infections. Independent of this, we also observed age related increases in WNV-specific T cell responses. Further analysis revealed that WNV-specific T cell responses included a population of atypically polarized CXCR3+CCR4+CCR6- T cells, whose presence was highly correlated with neuroinvasive disease. Moreover, a higher proportion of WNV-specific T cells in these subjects co-produced interferon-γ and interleukin 4 than those from asymptomatic subjects. More globally, subjects with neuroinvasive infections had reduced numbers of CD4+FoxP3+ Tregs that were CTLA4 positive and exhibited a distinct upregulated transcript profile that was absent in subjects with asymptomatic infections. Thus, subjects with neuroinvasive WNV infections exhibited elevated, dysregulated, and atypically polarized responses, suggesting that immune mediated damage may indeed contribute to pathogenic outcomes.
Author Summary
Most West Nile virus (WNV) infections are asymptomatic, but some lead to neuroinvasive disease with symptoms ranging from disorientation to paralysis and death. Epidemiologic evidence suggests that neuroinvasive disease is a consequence of poor viral control, as the risk of neurological symptom is highest in immune compromised individuals. However, conflicting evidence suggests that neurologic symptoms may arise because of immune mediated damage. We demonstrate that subjects with neuroinvasive West Nile Virus infections have exaggerated and atypical responses to the virus. Subjects with neuroinvasive infections had higher numbers of WNV-responsive cells and these cells had more potent and diverse functional responses. In particular, we observed that subjects with neuroinvasive infections had a significantly increased population of atypically polarized T cells, whose presence was highly correlated with a globally upregulated transcript profile. Thus, we conclude that immune mediated damage may indeed contribute to neurologic symptoms and pathogenic outcomes in the setting of WNV infection.
doi:10.1371/journal.ppat.1005375
PMCID: PMC4721872  PMID: 26795118
20.  HIV–tuberculosis-associated immune reconstitution inflammatory syndrome is characterized by Toll-like receptor and inflammasome signalling 
Nature Communications  2015;6:8451.
Patients with HIV-associated tuberculosis (TB) initiating antiretroviral therapy (ART) may develop immune reconstitution inflammatory syndrome (TB-IRIS). No biomarkers for TB-IRIS have been identified and the underlying mechanisms are unclear. Here we perform transcriptomic profiling of the blood samples of patients with HIV-associated TB. We identify differentially abundant transcripts as early as week 0.5 post ART initiation that predict downstream activation of proinflammatory cytokines in patients who progress to TB-IRIS. At the characteristic time of TB-IRIS onset (week 2), the signature is characterized by over-representation of innate immune mediators including TLR signalling and TREM-1 activation of the inflammasome. In keeping with the transcriptional data, concentrations of plasma cytokines and caspase-1/5 are elevated in TB-IRIS. Inhibition of MyD88 adaptor and group 1 caspases reduces secretion of cytokines including IL-1 in TB-IRIS patients. These data provide insight on the pathogenesis of TB-IRIS and may assist the development of specific therapies.
Some patients with HIV-associated tuberculosis develop an immune reconstitution inflammatory syndrome (TB-IRIS) in response to antiretroviral therapy. Here the authors identify genes differentially expressed in patients likely to progress to TB-IRIS and find activation of Toll-like receptor and inflammasome pathways.
doi:10.1038/ncomms9451
PMCID: PMC4595995  PMID: 26399326
21.  The Relationship of Immune Cell Signatures to Patient Survival Varies within and between Tumor Types 
PLoS ONE  2015;10(9):e0138726.
Enhancing pre-existing anti-tumor immunity leads to therapeutic benefit for some patients, but why some tumors are more immunogenic than others remains unresolved. We took a unique systems approach to relate patient survival to immune gene expression in >3,500 tumor RNAseq profiles from a dozen tumor types. We found significant links between immune gene expression and patient survival in 8/12 tumor types, with tumors partitioned by gene expression comprising distinct molecular subtypes. T/NK cell genes were most clearly survival-related for melanoma, head and neck, and bladder tumors, whereas myeloid cell genes were most clearly survival-related with kidney and breast tumors. T/NK or myeloid cell gene expression was linked to poor prognosis in bladder and kidney tumors, respectively, suggesting tumor-specific immunosuppressive checkpoints. Our results suggest new biomarkers for existing cancer immunotherapies and identify targets for new immunotherapies.
doi:10.1371/journal.pone.0138726
PMCID: PMC4580625  PMID: 26398410
22.  An interactive web application for the dissemination of human systems immunology data 
Background
Systems immunology approaches have proven invaluable in translational research settings. The current rate at which large-scale datasets are generated presents unique challenges and opportunities. Mining aggregates of these datasets could accelerate the pace of discovery, but new solutions are needed to integrate the heterogeneous data types with the contextual information that is necessary for interpretation. In addition, enabling tools and technologies facilitating investigators’ interaction with large-scale datasets must be developed in order to promote insight and foster knowledge discovery.
Methods
State of the art application programming was employed to develop an interactive web application for browsing and visualizing large and complex datasets. A collection of human immune transcriptome datasets were loaded alongside contextual information about the samples.
Results
We provide a resource enabling interactive query and navigation of transcriptome datasets relevant to human immunology research. Detailed information about studies and samples are displayed dynamically; if desired the associated data can be downloaded. Custom interactive visualizations of the data can be shared via email or social media. This application can be used to browse context-rich systems-scale data within and across systems immunology studies. This resource is publicly available online at [Gene Expression Browser Landing Page (https://gxb.benaroyaresearch.org/dm3/landing.gsp)]. The source code is also available openly [Gene Expression Browser Source Code (https://github.com/BenaroyaResearch/gxbrowser)].
Conclusions
We have developed a data browsing and visualization application capable of navigating increasingly large and complex datasets generated in the context of immunological studies. This intuitive tool ensures that, whether taken individually or as a whole, such datasets generated at great effort and expense remain interpretable and a ready source of insight for years to come.
doi:10.1186/s12967-015-0541-x
PMCID: PMC4474328  PMID: 26088622
Transcriptomics; Software; Immunology; Bioinformatics
23.  Modular transcriptional repertoire analyses of adults with systemic lupus erythematosus reveal distinct type I and type II interferon signatures 
Objective
The role for interferon (IFN)-α in systemic lupus erythematosus (SLE) pathogenesis is strongly supported by gene expression studies. The aim of this study was to improve characterization of the blood-IFN signature in adult SLE patients.
Methods
Consecutive patients were enrolled and followed-up prospectively. Microarray data were generated using Illumina beadchips. A modular transcriptional repertoire was employed as a framework for the analysis.
Results
Our repertoire of 260 modules, which consist of co-clustered gene sets, included 3 IFN-annotated modules (M1.2, M3.4 and M5.12) that were strongly up-regulated in SLE patients. A modular IFN signature (mIS) was observed in 54/62 (87%) patients or 131/157 (83%) longitudinal samples. The IFN signature was more complex than expected with each module displaying a distinct activation threshold (M1.2
Conclusion
Modular repertoire analysis reveals complex IFN signatures in SLE, not restricted to the previous IFN-α signature, but involving also β and γ IFNs.
doi:10.1002/art.38628
PMCID: PMC4157826  PMID: 24644022
Systemic Lupus Erythematosus; Interferon; Modular analyses; Transcriptional signature
Nature communications  2014;5:5283.
The mechanisms by which microbial vaccines interact with human APCs remain elusive. Herein, we describe the transcriptional programs induced in human DCs by pathogens, innate receptor ligands and vaccines. Exposure of DCs to influenza, Salmonella enterica and Staphylococcus aureus allows us to build a modular framework containing 204 transcript clusters. We use this framework to characterize the responses of human monocytes, monocyte-derived DCs and blood DC subsets to 13 vaccines. Different vaccines induce distinct transcriptional programs based on pathogen type, adjuvant formulation and APC targeted. Fluzone®, Pneumovax® and Gardasil® respectively activate monocyte-derived DCs, monocytes and CD1c+ blood DCs, highlighting APC specialization in response to vaccines. Finally, the blood signatures from individuals vaccinated with Fluzone or infected with influenza reveal a signature of adaptive immunity activation following vaccination and symptomatic infections, but not asymptomatic infections. These data, offered with a web interface, may guide the development of improved vaccines.
doi:10.1038/ncomms6283
PMCID: PMC4206838  PMID: 25335753
systems vaccinology; human dendritic cells; microarray; module framework; pathogens; vaccines
F1000Research  2015;4:89.
Background: Members of the ADAM (a disintegrin and metalloprotease domain) family have emerged as critical regulators of cell-cell signaling during development and homeostasis. ADAM9 is consistently overexpressed in various human cancers, and has been shown to play an important role in tumorigenesis. However, little is known about the involvement of ADAM9 during immune-mediated processes.
Results: Mining of an extensive compendium of transcriptomic datasets led to the discovery of gaps in knowledge for ADAM9 that reveal its role in immunological homeostasis and pathogenesis. The abundance of ADAM9 transcripts in the blood was increased in patients with acute infection but changed very little after in vitro exposure to a wide range of pathogen-associated molecular patterns (PAMPs). Furthermore it was found to increase significantly in subjects as a result of tissue injury or tissue remodeling, in absence of infectious processes.
Conclusions: Our findings indicate that ADAM9 may constitute a valuable biomarker for the assessment of tissue damage, especially in clinical situations where other inflammatory markers are confounded by infectious processes.
doi:10.12688/f1000research.6241.1
PMCID: PMC5130078  PMID: 27990250
ADAM9; Data mining; Transcriptomics; RNAseq; Microarray

Results 1-25 (82)