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Kinase independent inhibition of NFκB transcriptional activity by GRK5 through IκBα stabilization. Nature Precedings
Daniela Sorriento; Michele Ciccarelli; Gaetano Santulli; Alfonso Campanile; Giovanna Giuseppina Altobelli; Vincenzo Cimini; Gennaro Galasso; Dalila Astone; Federico Piscione; Lucio Pastore; Bruno Trimarco; Guido Iaccarino.
Members of the G protein receptor kinase (GRK) family that regulates receptor desensitization and members of the nuclear transcription factors family NF[kappa]B have been recently and convincingly demonstrated to interact, although the effects on transcription and gene expression have not yet been described. Using overexpression, knockdown (small interfering RNA) and mutagenesis experiments, we demonstrate that GRK5 couples to and stabilizes the NF[kappa]B inhibitor I[kappa]B[alpha], and inhibits NF[kappa]B activity. Studies with minigenes suggest that the N-terminal Regulation of G protein Signaling (RGS) homology (RH) domain confers GRK5 such ability. GRK5-RH domain overexpression affects NF[kappa]B dependent phenotypes, such as apoptosis protection,...
Tipo: Manuscript Palavras-chave: Immunology; Molecular Cell Biology.
Ano: 2007 URL: http://precedings.nature.com/documents/1196/version/1
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Rescue with an anti-inflammatory peptide of chickens infected H5N1 avian flu Nature Precedings
Masaki M. Imai; Alan A. Okada; Hidechika H. Okada; Ekowati E. Handharyani; Yasuhiro Tsukamoto; Kazuhide K. Adachi; Noriko N. Okada; Retno Damajanti R. D. Soejoedono.
Chickens suffering from avian flu caused by H5N1 influenza virus are destined to die within 2 days due to a systemic inflammatory response. Since HVJ infection (1,2) and influenza virus infection (3,4) cause infected cells to activate homologous serum complement, the systemic inflammatory response elicited could be attributed to the unlimited generation of C5a anaphylatoxin of the complement system, which is a causative peptide of serious inflammation. In monkeys inoculated with a lethal dose of LPS (4 mg/kg body weight), inhibition of C5a by an inhibitory peptide termed AcPepA (5) rescued these animals from serious septic shock which would have resulted in death within a day (6). Therefore, we tested whether AcPepA could also have a beneficial effect on...
Tipo: Manuscript Palavras-chave: Immunology; Microbiology; Pharmacology.
Ano: 2009 URL: http://precedings.nature.com/documents/3425/version/1
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Overexpression of the leukotriene C4 synthase gene in mice reproduces human aspirin-induced asthma Nature Precedings
Hirokuni Hirata; Kyoko Honda; Yasutsugu Fukushima; Masafumi Arima; Takeshi Tokuhisa; Takeshi Fukuda.
The pathogenesis of aspirin-induced asthma (AIA) is presumed to involve the aspirin /non-steroidal anti-inflammatory drug (NSAID)-induced abnormal metabolism of arachidonic acid, resulting in an increase in 5-lopoxygenase (5-LO) metabolites, particularly leukotriene C4 (LTC4) which is a highly potent bronchial constrictor. However, the role of LTC4 in the development of AIA has yet to be conclusively demonstrated. To elucidate the effect of LTC4 on the development of AIA, we generated LTC4 synthase (Ltc4s) gene transgenic (LTC4S-Tg) mice. In contrast to wild-type (WT) mice, LTC4S-Tg mice displayed NSAID-induced airway obstruction that was associated with increases of LTC4 and Th2 cytokines in lung tissue. This is the first study to demonstrate...
Tipo: Manuscript Palavras-chave: Immunology.
Ano: 2010 URL: http://precedings.nature.com/documents/4751/version/1
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Integration of the scientific literature into the Semantic Web: Facts from biomedical data resources Nature Precedings
Dietrich Rebholz; Samuel Croset; Christoph Grabmueller.
Scientific literature is the primary resource for relevant and innovative information. The integration of the literature with other data resources in the biomedical research community generates overhead that can be avoided through the used of Semantic Web Technology generating openly accessible data. Projects such as SESL and CALBC have producted significant amount of data that that are ready for exploitation.
The tutorial will teach different approaches on how to integrate the scientific literature with the content from biomedical databases, and will discuss the inferences that can be achieved. Furthermore, the tutorial will point to the resources that are ready for use and enable integration of the literature at your discretion. A good...
Tipo: Presentation Palavras-chave: Biotechnology; Immunology; Bioinformatics; Data Standards.
Ano: 2012 URL: http://precedings.nature.com/documents/7011/version/1
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Hematopoietic Cell Types: Prototype for a Revised Cell Ontology Nature Precedings
Alexander D. Diehl; Alison D. Augustine; Judith A. Blake; Lindsay G. Cowell; Elizabeth S. Gold; Timothy A. Gondré-Lewis; Anna Maria Masci; Terrence F. Meehan; Penelope A. Morel; Anastasia Nijnik; Bjoern Peters; Bali Pulendran; Richard H. Scheuermann; Q. Alison Yao; Martin S. Zand; Christopher J. Mungall.
The Cell Ontology (CL) is an OBO Foundry candidate ontology intended for the representation of cell types from all of biology. A recent workshop sponsored by NIAID on hematopoietic cell types in the CL addressed issues of both the content and structure of the CL. The section of the ontology dealing with hematopoietic cells was extensively revised, and plans were made for restructuring these cell type terms as cross-products with logical definitions based on relationships to external ontologies, such as the Protein Ontology and the Gene Ontology. The improvements to the CL in this area represent a paradigm for the future revision of the whole of the CL.
Tipo: Presentation Palavras-chave: Immunology; Bioinformatics; Data Standards.
Ano: 2009 URL: http://precedings.nature.com/documents/3543/version/2
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New methods for analyzing serological data with applications to influenza surveillance Nature Precedings
Wilfred Ndifon.
Two important challenges to the use of serological assays for influenza surveillance include the substantial amount of experimental effort involved, and the inherent noisiness of serological data. Here, informed by the observation that log-transformed serological data (obtained from the hemagglutination-inhibition assay) exist in an effectively one-dimensional space, computational methods are developed for accurately and efficiently recovering unmeasured serological data from a sample of measured data, and systematically minimizing noise found in the measured data. Careful application of these methods would enable the collection of better-quality serological data on a greater number of circulating influenza viruses than is currently possible, and improve...
Tipo: Manuscript Palavras-chave: Immunology; Evolutionary Biology.
Ano: 2009 URL: http://precedings.nature.com/documents/3820/version/1
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Immunogenetic sequence annotation based on IMGT-ONTOLOGY Nature Precedings
Joumana Jabado-Michaloud; Géraldine Folch; Fatena Bellahcene; François Ehrenmann; Patrice Duroux; Véronique Giudicelli; Marie-Paule Lefranc.
IMGT/LIGM-DB^1^ is the first and the largest IMGT^®^ database^2^ in which are managed, analysed and annotated more than 136,000 immunoglobulin (IG) and T cell receptor (TR) nucleotide sequences from human and 235 other vertebrate species (April 2009). The expert annotation of these sequences and the added standardized knowledge are based on IMGT-ONTOLOGY, the first ontology developed in the field of immunogenetics and immunoinformatics.^3^ The annotation of immunogenetic sequences requires important expertise, owing to the unusual structure (non-classical exon/intron structure) of the IG and TR genes and characteristic chain synthesis owing to DNA V-J and V-D-J rearrangements. The way to annotate these sequences depends on the molecular type...
Tipo: Poster Palavras-chave: Genetics & Genomics; Immunology; Bioinformatics.
Ano: 2009 URL: http://precedings.nature.com/documents/3165/version/1
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Protection from avian influenza H5N1 virus infection with antibody-impregnated filters Nature Precedings
Yoichiro Kamiyama; Kazuhide Adachi; Ekowati Handharyani; Retno Damajanti Soejoedono; Takayuki Kusano; Marie Inai; Masaya Tsukamoto; Seizaburo Kashiwagi; Yasuhiro Tsukamoto.
There is worldwide concern over the possibility of a new influenza pandemic originating from the highly pathogenic avian H5N1 influenza viruses. We herein demonstrate that functional air filters impregnated with ostrich antibodies against the hemagglutinin of the H5N1 virus protect chickens from death by H5N1 transmission. These results suggest that the use of ostrich antibody-impregnated filters might be a powerful way to prevent the transmission of H5N1.
Tipo: Manuscript Palavras-chave: Immunology.
Ano: 2010 URL: http://precedings.nature.com/documents/4548/version/1
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Novel approaches, including systems biology, to HIV vaccine research and development: Report from a Global HIV Vaccine Enterprise Working Group Nature Precedings
Bali Pulendran; Rino Rappuoli; Alan Aderem; the Working Group convened by the Global HIV Vaccine Enterprise.
The Global HIV Vaccine Enterprise convened a two-day workshop on August 10-11 2009, at the Fred Hutchison Cancer Research Center offices in Seattle, WA, to discuss the application of novel approaches,including systems biology, to HIV vaccine research and development. The goals of this Working Group were to identify key scientific issues and opportunities that have emerged since the Enterprise Scientific Strategic Plan1 was published in 2005, and to make recommendations to Enterprise stakeholders.
Tipo: Manuscript Palavras-chave: Biotechnology; Immunology; Microbiology; Bioinformatics.
Ano: 2010 URL: http://precedings.nature.com/documents/4798/version/1
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Pathogenetic role of tissue factor in graft-versus-host disease Nature Precedings
Li Quan; Li Weiming; Zhang Jian; Zou Ping.
Graft-versus-host disease (GVHD) is a serious complication after allogeneic stem cell transplantation, the mechanism of it is still not elucidated. Recent findings suggest that host endothelial cells are a target of alloreactive donor cytotoxic T lymphocytes in GVHD and tissue factor (TF) plays an important role not only in coagulation-inflammation cycle, but also in transplant immunology. We postulate TF expression in vascular endothelial cells(VEC) may play an pivotal role in the pathogenesis of GVHD. TF gene andprotein expression in target organs of GVHD in aGVHD mice was significantly elevated compared to that of controls as determined by real-time PCR and Western blotting. Allogeneic CD4^+^T cell and CD8^+^T cells enhanced TF, VCAM-1, TNF-[alpha],...
Tipo: Manuscript Palavras-chave: Immunology; Molecular Cell Biology.
Ano: 2008 URL: http://precedings.nature.com/documents/2248/version/1
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Genome activity profiling of monomeric-IgE and Fc-epsilon-RI-aggregation on human mast cells reveals a complex network of genes involved in inflammatory responses. Nature Precedings
Jayapal J. Manikandan; Alirio Jose P. N. Melendez; Peter Natesan A. J. Pushparaj.
Mast cell activation, mediates type-1 allergic responses, one of the most powerful reactions of the immune system. However, mast cells activation is becoming increasingly linked to inflammatory, autoimmunity, and to adaptive immunity by regulating T-cell activation.
Here we analyzed the gene expression pattern in IgE-sensitized and FcεRI aggregation on human mast cells. Our data revealed coordinated changes in gene expression. We observed increased expression of gene-transcripts involved in allergic, innate and adaptive
immune responses. Among the most prominent findings is the increased expression of transcripts encoding for MIP3a, SPARCL1, AREG, IL18, CCL1, TNFRSF9, IL1b, CX3CR1, PTGER3, MIF, MMP12, ADORA3,...
Tipo: Poster Palavras-chave: Immunology; Molecular Cell Biology; Pharmacology; Bioinformatics.
Ano: 2007 URL: http://precedings.nature.com/documents/1150/version/1
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A Novel NIR Spectroscopy Correlation Approach to Amino Acid Analysis of Soybean Proteins for Composition Improvements- (v.4) Nature Precedings
Valentin Prisecaru; I. C. Baianu.
Amino acid NIR calibrations were developed in our Physical Chemistry of Foods Laboratory of the University of Illinois at Urbana for three selected amino acid groups that include essential amino acids for identified soybean accessions. Conventional “wet chemistry” analytical methods are time-consuming and costly. As a result, soybean breeders and researchers have an imperative need to utilize faster and less expensive methods. NIR Spectroscopy is a rapid and inexpensive method for composition analysis for academia and industry. Recent advancements in instrumentation design, such as the application of the Diode Array (DA) technique and the Fourier Transform (FT) IR and NIR techniques, have significantly improved overall instrument...
Tipo: Presentation Palavras-chave: Biotechnology; Chemistry; Developmental Biology; Genetics & Genomics; Immunology; Molecular Cell Biology; Bioinformatics; Earth & Environment; Plant Biology.
Ano: 2011 URL: http://precedings.nature.com/documents/6231/version/4
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Immunogens and Antigen Processing: Report from a Global HIV Vaccine Enterprise Working Group Nature Precedings
John Mascola; Richter C. King; Ralph Steinman; the Working Group convened by the Global HIV Vaccine Enterprise.
The Global HIV Vaccine Enterprise convened a meeting of a Working Group in July 2009 to discuss recent progress in rational design of the components of an HIV vaccine, such as inserts, vectors and adjuvants,and in understanding antigen processing and presentation to T and B cells. This Report summarizes the key points of that discussion, and subsequent discussions with the Chairs of the other Enterprise Working Groups, the Enterprise Science Committee, the Enterprise Council and the broader scientific community during open sessions at scientific conferences.
Tipo: Manuscript Palavras-chave: Immunology; Microbiology.
Ano: 2010 URL: http://precedings.nature.com/documents/4796/version/2
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Bridging the Gaps between Fundamental, Preclinical and Clinical Research: Report from a Global HIV Vaccine Enterprise Working Group Nature Precedings
Lawrence Corey; Brigitte Autran; Louis Picker; the Working Group convened by the Global HIV Vaccine Enterprise.
The Global HIV Vaccine Enterprise (the Enterprise) convened a two-day workshop on 17-18 September 2009, at the Enterprise offices in New York; to discuss approaches to bridging the gaps between fundamental,preclinical and clinical HIV vaccine research. The topic of this Working Group originated from discussions of the Enterprise Science Committee,which proposed that more effective collaboration between these three areas of HIV vaccine research is needed in order to accelerate the pace of scientific progress in the field. Because the meeting took place before the release of the RV144 trial results held in Thailand, the conclusions reached during the meeting were further discussed during consultations at scientific conferences and at a joint meeting of the...
Tipo: Manuscript Palavras-chave: Immunology; Microbiology.
Ano: 2010 URL: http://precedings.nature.com/documents/4799/version/2
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Immunogenicity of human spermatozoa Nature Precedings
Jhinuk Chatterjee.
Investigation and experimental design of the study was basically aimed at developing insight into the antigenicity of spermatozoa-associated proteins. Apart from studying the natural antigenicity of washed whole spermatozoa, their immunogenicity was also demonstrated _in vitro_. The whole live spermatozoa were immobilized and agglutinated _in vitro_ by the antibodies they induced in the laboratory model - a female rabbit. A regular immunization routine induced a high titre of antisperm polyclonal antibodies. To prepare a spermatozoa specific antigen which will not produce a cross-reacting antibody against other human tissues, only the motile and live spermatozoa were selected for antigen preparation. In investigation the laboratory-bred female rabbits were...
Tipo: Manuscript Palavras-chave: Immunology.
Ano: 2008 URL: http://precedings.nature.com/documents/1855/version/1
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Simulations of Antigenic Variability in Influenza A Nature Precedings
Nuno Fachada; Vitor V. Lopes; Agostinho C. Rosa.
Computational models of the immune system (IS) and pathogenic agents have several applications, such as theory testing and validation, or as a complement to first stages of drug trials. One possible application is the prediction of the lethality of new Influenza A strains, which are constantly created due to antigenic drift and shift. Here, we present several simulations of antigenic variability in Influenza A using an agent-based approach, where low level molecular antigen-antibody interactions are explicitly described. Antigenic drift and shift events are analyzed regarding the virulence of emergent strains against the IS. Results are discussed from a qualitative point of view taking into account recent and generally recognized immunology and influenza...
Tipo: Manuscript Palavras-chave: Immunology; Bioinformatics.
Ano: 2008 URL: http://precedings.nature.com/documents/2303/version/1
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Herd Immunity/Herd Infection: Cultural Artifacts of Marginalization and the Dynamics of AIDS Nature Precedings
Rodrick Wallace.
We examine conditions under which high prevalence of infectious disease can become endemic within a community, in effect constituting a state of 'herd infection' inverse to epidemiological herd immunity. For something like AIDS, under such circumstances, a single behavioral lapse or adverse accident will probably be a death sentence.
Tipo: Manuscript Palavras-chave: Immunology; Microbiology; Pharmacology; Evolutionary Biology.
Ano: 2011 URL: http://precedings.nature.com/documents/5864/version/1
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Clonal origin of Epstein-Barr virus-infected T/NK-cell subpopulations in chronic active Epstein-Barr virus infection Nature Precedings
Shouichi Ohga; Masataka Ishimura; Goichi Toshimoto; Toshihiro Miyamoto; Hidetoshi Takada; Tamami Tanaka; Koichi Ohshima; Ken-Ichi Imadome; Yasunobu Abe; Koichi Akashi; Toshiro Hara.
Clonal expansion of Epstein-Barr virus (EBV) infected B-cells occasionally occurs in immunocompromized subjects. EBV-infected T/natural killer (NK)-cells proliferate in patients with chronic active EBV infection (CAEBV) that is a rare mononucleosis syndrome. It is classified into either T-cell type or NK-cell type according to the primary target of infection, while the pathogenesis remains unclear. To search the clonal origin of EBV-infected T/NK-cells, virus distribution and clonotype were assessed by using highly purified cell fractions obtained from 6 patients. Patient 1 had a monoclonal proliferation of EBV-infected T-cell receptor Vδ2/Vγ9-expressing cells, and carried lower copy number of EBV in αβT-cells....
Tipo: Manuscript Palavras-chave: Immunology; Microbiology.
Ano: 2010 URL: http://precedings.nature.com/documents/4238/version/1
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A new outlook towards kidney injuries Nature Precedings
Mahesh Satwekar; Abhijeet Satwekar.
Acute and chronic progression of injury to the kidney leads to the failure of the renal system and has become an increasingly important cause of morbidity and mortality. Present diagnosis detects the condition only after irreversible loss of 70 percent of kidney function. Current research is focused only on the clinical manifestations after the kidney injuries and not towards the exact cause of the condition. Here we propose a new outlook- that there is an involvement of a pathogen in the pathogenesis of kidney injuries. Basis for our proposal is given by the similarity of the pathogenesis events occurring between a classical example of hepatitis and kidney injuries. Furthermore, literature regarding the role of early kidney injury biomarkers in innate...
Tipo: Manuscript Palavras-chave: Biotechnology; Immunology; Microbiology.
Ano: 2012 URL: http://precedings.nature.com/documents/7021/version/1
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Alzheimer's disease is TH17 related autoimmune disease against misfolded beta amyloid Nature Precedings
Wan-Jiung(Wan-Chung) Hu.
Alzheimer's disease is a common neurodegenerative disorder. However, its exact etiology is still unknown. There were several mechanisms proposed such as the tau hypothesis and amyloid hypothesis. However, there is evidence challenging the above two hypotheses. Here, I propose the immune-amyloid hypothesis as a mechanism for Alzheimer's disease. Th17 related autoimmunity contributes to the disease pathogenesis. Accumulation of misfolded beta amyloid can trigger heat shock protein which in turn induces TH17 immunity. By microarray analysis of peripheral blood mononuclear cells, there is up-regulation of many TH17 related molecules after Alzheimer's disease. After knowing the exact disease pathogenesis, we can develop new...
Tipo: Manuscript Palavras-chave: Genetics & Genomics; Immunology; Neuroscience; Bioinformatics.
Ano: 2011 URL: http://precedings.nature.com/documents/5934/version/3
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