keyword
MENU ▼
Read by QxMD icon Read
search

IRF4

keyword
https://www.readbyqxmd.com/read/27910098/gata-3-specific-dnazyme-a-novel-approach-for-stratified-asthma-therapy
#1
REVIEW
Holger Garn, Harald Renz
It is now well established that type-2 immune mechanisms drive the inflammation in about 50% of asthma patients. The major cellular and molecular players regulating this important network have been identified. In terms of therapeutic intervention, cytokine and cytokine-receptor pathways have been given major attention, since these molecules are relatively easily accessible for a blockade through monoclonal antibodies, and a number of positive clinical results support this concept. However, targeting events controlling the type-2 immunity network upstream of selective cytokine pathways would be equally attractive...
December 2, 2016: European Journal of Immunology
https://www.readbyqxmd.com/read/27903272/inhibition-of-bromodomain-and-extra-terminal-bet-proteins-increases-nkg2d-ligand-mica-expression-and-sensitivity-to-nk-cell-mediated-cytotoxicity-in-multiple-myeloma-cells-role-of-cmyc-irf4-mir-125b-interplay
#2
Maria Pia Abruzzese, Maria Teresa Bilotta, Cinzia Fionda, Alessandra Zingoni, Alessandra Soriani, Elisabetta Vulpis, Cristiana Borrelli, Beatrice Zitti, Maria Teresa Petrucci, Maria Rosaria Ricciardi, Rosa Molfetta, Rossella Paolini, Angela Santoni, Marco Cippitelli
BACKGROUND: Anti-cancer immune responses may contribute to the control of tumors after conventional chemotherapy, and different observations have indicated that chemotherapeutic agents can induce immune responses resulting in cancer cell death and immune-stimulatory side effects. Increasing experimental and clinical evidence highlight the importance of natural killer (NK) cells in immune responses toward multiple myeloma (MM), and combination therapies able to enhance the activity of NK cells against MM are showing promise in treating this hematologic cancer...
December 1, 2016: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/27897229/global-gene-regulation-during-activation-of-immunoglobulin-class-switching-in-human-b-cells
#3
Youming Zhang, David J Fear, Saffron A G Willis-Owen, William O Cookson, Miriam F Moffatt
Immunoglobulin class switch recombination (CSR) to IgE is a tightly regulated process central to atopic disease. To profile the B-cell transcriptional responses underlying the activation of the germinal centre activities leading to the generation of IgE, naïve human B-cells were stimulated with IL-4 and anti-CD40. Gene expression and alternative splicing were profiled over 12 days using the Affymetrix Human Exon 1.0 ST Array. A total of 1,399 genes, forming 13 temporal profiles were differentially expressed...
November 29, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27897162/batf3-selectively-determines-acquisition-of-cd8-dendritic-cell-phenotype-and-function
#4
Janin Chandra, Paula T Y Kuo, Anne M Hahn, Gabrielle T Belz, Ian H Frazer
Batf3 is a transcription factor that impacts the development of CD103(+) tissue-resident dendritic cells (DCs). However, whether Batf3 is absolutely required for the development of CD8(+) DCs remains controversial. Id2 is required for CD8(+) DC development. Here we show that bone marrow chimeric mice with a deletion of Id2 in the CD11c compartment lose the ability to reject a skin graft expressing a non-self protein antigen or mount a delayed hypersensitivity response. In contrast, Batf3((-/-)) mice remained competent for skin graft rejection and delayed hypersensitivity, and retained a CD8(+) DC population with markers characteristic of the CD11b(+) DC lineage, including CD11b, CD4 and CD172α, as well as the key regulator transcription factor IRF4, but lacked IRF8 expression...
November 29, 2016: Immunology and Cell Biology
https://www.readbyqxmd.com/read/27890933/preclinical-activity-of-cpi-0610-a-novel-small-molecule-bromodomain-and-extra-terminal-protein-inhibitor-in-the-therapy-of-multiple-myeloma
#5
K T Siu, J Ramachandran, A J Yee, H Eda, L Santo, C Panaroni, J A Mertz, R J Sims, M R Cooper, N Raje
Inhibition of the bromodomain and extra-terminal (BET) proteins is a promising therapeutic strategy for various hematologic cancers. Previous studies suggest that BET inhibitors constrain tumor cell proliferation and survival mainly through suppression of MYC transcription and activity. However, suppression of the transcription of additional genes also contributes to the anti-tumor activity of BET inhibitors but is less well understood. Here we examined the therapeutic potential of CPI-0610, a potent BET inhibitor currently undergoing Phase I clinical testing, in multiple myeloma (MM)...
November 28, 2016: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/27882933/multiple-myeloma-risk-variant-at-7p15-3-creates-an-irf4-binding-site-and-interferes-with-cdca7l-expression
#6
Ni Li, David C Johnson, Niels Weinhold, James B Studd, Giulia Orlando, Fabio Mirabella, Jonathan S Mitchell, Tobias Meissner, Martin Kaiser, Hartmut Goldschmidt, Kari Hemminki, Gareth J Morgan, Richard S Houlston
Genome-wide association studies have identified several risk loci for multiple myeloma (MM); however, the mechanisms by which they influence MM are unknown. Here by using genetic association data and functional characterization, we demonstrate that rs4487645 G>T, the most highly associated variant (P = 5.30 × 10(-25)), resides in an enhancer element 47 kb upstream of the transcription start site of c-Myc-interacting CDCA7L. The G-risk allele, associated with increased CDCA7L expression (P=1.95 × 10(-36)), increases IRF4 binding and the enhancer interacts with the CDCA7L promoter...
November 24, 2016: Nature Communications
https://www.readbyqxmd.com/read/27878828/rhs6-coordinately-regulates-the-th2-cytokine-genes-by-recruiting-gata3-satb1-and-irf4
#7
S S Hwang, S W Jang, K O Lee, H S Kim, G R Lee
BACKGROUND: Asthma is a Th2 cell-driven inflammatory disease and a major public health concern. The cis-acting element Rad50 hypersensitive site 6 (RHS6) in the Th2 locus control region is essential for regulation of the Th2 cytokine genes; however, its role in allergic airway inflammation and underlying molecular mechanisms of the regulation by RHS6 are poorly understood. OBJECTIVE: We sought to understand the role of RHS6 in the development of allergic airway inflammation and its molecular mechanism for Th2 cytokine expression...
November 5, 2016: Allergy
https://www.readbyqxmd.com/read/27869616/tet2-and-tet3-cooperate-with-b-lineage-transcription-factors-to-regulate-dna-modification-and-chromatin-accessibility
#8
Chan-Wang Lio, Jiayuan Zhang, Edahí González-Avalos, Patrick G Hogan, Xing Chang, Anjana Rao
Ten-eleven translocation (TET) enzymes oxidize 5-methylcytosine, facilitating DNA demethylation and generating new epigenetic marks. Here we show that concomitant loss of Tet2 and Tet3 in mice at early B cell stage blocked the pro- to pre-B cell transition in the bone marrow, decreased Irf4 expression and impaired the germline transcription and rearrangement of the Igκ locus. Tet2/3-deficient pro-B cells showed increased CpG methylation at the Igκ 3' and distal enhancers that was mimicked by depletion of E2A or PU...
November 21, 2016: ELife
https://www.readbyqxmd.com/read/27858144/th9-and-other-il-9-producing-cells-in-allergic-asthma
#9
REVIEW
Sonja Koch, Nina Sopel, Susetta Finotto
Allergic asthma is a worldwide increasing chronic disease of the airways which affects more than 300 million people. It is associated with increased IgE, mast cell activation, airway hyperresponsiveness (AHR), mucus overproduction and remodeling of the airways. Previously, this pathological trait has been associated with T helper type 2 (Th2) cells. Recently, different CD4(+) T cell subsets (Th17, Th9) as well as cells of innate immunity, like mast cells and innate lymphoid cells type 2 (ILC2s), which are all capable of producing the rediscovered cytokine IL-9, are known to contribute to this disease...
November 17, 2016: Seminars in Immunopathology
https://www.readbyqxmd.com/read/27856326/expression-pattern-analysis-of-irf4-and-its-related-genes-revealed-the-functional-differentiation-of-irf4-paralogues-in-teleost
#10
Kete Ai, Kai Luo, Youshen Li, Wei Hu, Weihua Gao, Liu Fang, Guangming Tian, Guoliang Ruan, Qiaoqing Xu
In mammals, interferon regulatory factor 4 (IRF4) plays an important role in the process of development and differentiation of B cells, T cells and dendritic cells. It can regulate immune pathway through IRF5, MyD88, IL21, PGC1α, and NOD2. In the present study, we investigated the expression pattern of IRF4 paralogues and these related genes for the first time in teleosts. The results showed that these genes were all expressed predominantly in known immune tissues while IRF5 was also relatively highly expressed in muscle...
November 14, 2016: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/27852743/immunogenic-dendritic-cell-generation-from-pluripotent-stem-cells-by-ectopic-expression-of-runx3
#11
Erika Takacs, Pal Boto, Emilia Simo, Tamas I Csuth, Bianka M Toth, Hadas Raveh-Amit, Attila Pap, Elek G Kovács, Julianna Kobolak, Szilvia Benkö, Andras Dinnyes, Istvan Szatmari
Application of dendritic cells (DCs) to prime responses to tumor Ags provides a promising approach to immunotherapy. However, only a limited number of DCs can be manufactured from adult precursors. In contrast, pluripotent embryonic stem (ES) cells represent an inexhaustible source for DC production, although it remains a major challenge to steer directional differentiation because ES cell-derived cells are typically immature with impaired functional capacity. Consistent with this notion, we found that mouse ES cell-derived DCs (ES-DCs) represented less mature cells compared with bone marrow-derived DCs...
November 16, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27835756/regulated-localization-of-an-aid-complex-with-e2a-pax5-and-irf4-at-the-igh-locus
#12
Jannek Hauser, Christine Grundström, Ramesh Kumar, Thomas Grundström
Activation-induced cytidine deaminase (AID) is the key mutagenic enzyme that initiates somatic hypermutation (SH) and class switch recombination (CSR) by deaminating cytosine to uracil. The targeting of AID and therefore SH and CSR to Ig genes is a central process of the immune system, but the trans-acting factors mediating the specific targeting have remained elusive. Here we show that defective calmodulin inhibition of the transcription factor E2A after activation of the B cell receptor (BCR) leads to reduced BCR, IL4 plus CD40 ligand stimulated CSR to IgE and instead CSR to other Ig classes...
November 8, 2016: Molecular Immunology
https://www.readbyqxmd.com/read/27826752/essential-role-of-interferon-regulatory-factor-4-irf4-in-immune-cell-development
#13
REVIEW
Sorim Nam, Jong-Seok Lim
The family of interferon regulatory factors, which includes nine mammalian members (IRF1-IRF9), acts as transcription factors for interferons and thus exerts regulatory functions in the immune system and in oncogenesis. Among these members, IRF4 expression is restricted to immune cells such as T and B lymphocytes, macrophages, and dendritic cells where it is a key factor in the regulation of differentiation and is required during the immune response for lymphocyte activation and the generation of immunoglobulin-secreting plasma cells...
November 9, 2016: Archives of Pharmacal Research
https://www.readbyqxmd.com/read/27819673/lmp1-signaling-pathway-activates-irf4-in-latent-ebv-infection-and-a-positive-circuit-between-pi3k-and-src-is-required
#14
L Wang, J Ren, G Li, J P Moorman, Z Q Yao, S Ning
Interferon (IFN) regulatory factors (IRFs) have crucial roles in immune regulation and oncogenesis. We have recently shown that IRF4 is activated through c-Src-mediated tyrosine phosphorylation in virus-transformed cells. However, the intracellular signaling pathway triggering Src activation of IRF4 remains unknown. In this study, we provide evidence that Epstein-Barr virus (EBV) latent membrane protein 1 (LMP1) promotes IRF4 phosphorylation and markedly stimulates IRF4 transcriptional activity, and that Src mediates LMP1 activation of IRF4...
November 7, 2016: Oncogene
https://www.readbyqxmd.com/read/27799622/pmhc-affinity-controls-duration-of-cd8-t-cell-dc-interactions-and-imprints-timing-of-effector-differentiation-versus-expansion
#15
Aleksandra J Ozga, Federica Moalli, Jun Abe, Jim Swoger, James Sharpe, Dietmar Zehn, Mario Kreutzfeldt, Doron Merkler, Jorge Ripoll, Jens V Stein
During adaptive immune responses, CD8(+) T cells with low TCR affinities are released early into the circulation before high-affinity clones become dominant at later time points. How functional avidity maturation is orchestrated in lymphoid tissue and how low-affinity cells contribute to host protection remains unclear. In this study, we used intravital imaging of reactive lymph nodes (LNs) to show that T cells rapidly attached to dendritic cells irrespective of TCR affinity, whereas one day later, the duration of these stable interactions ceased progressively with lowering peptide major histocompatibility complex (pMHC) affinity...
November 14, 2016: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/27799566/epigenetic-gene-regulation-by-janus-kinase-1-in-diffuse-large-b-cell-lymphoma
#16
Lixin Rui, Amanda C Drennan, Michele Ceribelli, Fen Zhu, George W Wright, Da Wei Huang, Wenming Xiao, Yangguang Li, Kreg M Grindle, Li Lu, Daniel J Hodson, Arthur L Shaffer, Hong Zhao, Weihong Xu, Yandan Yang, Louis M Staudt
Janus kinases (JAKs) classically signal by activating STAT transcription factors but can also regulate gene expression by epigenetically phosphorylating histone H3 on tyrosine 41 (H3Y41-P). In diffuse large B-cell lymphomas (DLBCLs), JAK signaling is a feature of the activated B-cell (ABC) subtype and is triggered by autocrine production of IL-6 and IL-10. Whether this signaling involves STAT activation, epigenetic modification of chromatin, or both mechanisms is unknown. Here we use genetic and pharmacological inhibition to show that JAK1 signaling sustains the survival of ABC DLBCL cells...
November 15, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27771416/candidate-gene-analysis-of-the-fibrinogen-phenotype-reveals-the-importance-of-polygenic-co-regulation
#17
H Toinét Cronjé, Cornelie Nienaber-Rousseau, Lizelle Zandberg, Tinashe Chikowore, Zelda de Lange, Tertia van Zyl, Marlien Pieters
Fibrinogen and its functional aspects have been linked to cardiovascular disease. There is vast discrepancy between the heritability of fibrinogen concentrations observed in twin studies and the heritability uncovered by genome wide association studies. We postulate that some of the missing heritability might be explained by the pleiotropic and polygenic co-regulation of fibrinogen through multiple targeted genes, apart from the fibrinogen genes themselves. To this end we investigated single nucleotide polymorphisms (SNPs) in genes coding for phenotypes associated with total and γ' fibrinogen concentrations and clot properties...
October 19, 2016: Matrix Biology: Journal of the International Society for Matrix Biology
https://www.readbyqxmd.com/read/27762344/interferon-regulatory-factor-4-controls-th1-cell-effector-function-and-metabolism
#18
Justus Mahnke, Valéa Schumacher, Stefanie Ahrens, Nadja Käding, Lea Marie Feldhoff, Magdalena Huber, Jan Rupp, Friederike Raczkowski, Hans-Willi Mittrücker
The transcription factor Interferon Regulatory Factor 4 (IRF4) is essential for TH2 and TH17 cell formation and controls peripheral CD8(+) T cell differentiation. We used Listeria monocytogenes infection to characterize the function of IRF4 in TH1 responses. IRF4(-/-) mice generated only marginal numbers of listeria-specific TH1 cells. After transfer into infected mice, IRF4(-/-) CD4(+) T cells failed to differentiate into TH1 cells as indicated by reduced T-bet and IFN-γ expression, and showed limited proliferation...
October 20, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27760338/metabolic-reprogramming-mediated-by-the-mtorc2-irf4-signaling-axis-is-essential-for-macrophage-alternative-activation
#19
Stanley Ching-Cheng Huang, Amber M Smith, Bart Everts, Marco Colonna, Erika L Pearce, Joel D Schilling, Edward J Pearce
Macrophage activation status is intrinsically linked to metabolic remodeling. Macrophages stimulated by interleukin 4 (IL-4) to become alternatively (or, M2) activated increase fatty acid oxidation and oxidative phosphorylation; these metabolic changes are critical for M2 activation. Enhanced glucose utilization is also characteristic of the M2 metabolic signature. Here, we found that increased glucose utilization is essential for M2 activation. Increased glucose metabolism in IL-4-stimulated macrophages required the activation of the mTORC2 pathway, and loss of mTORC2 in macrophages suppressed tumor growth and decreased immunity to a parasitic nematode...
October 18, 2016: Immunity
https://www.readbyqxmd.com/read/27746240/protein-kinase-c%C3%AE-controls-type-2-innate-lymphoid-cell-and-th2-responses-to-house-dust-mite-allergen
#20
Fahima Madouri, Pauline Chenuet, Chloé Beuraud, Louis Fauconnier, Tiffany Marchiol, Nathalie Rouxel, Aurélie Ledru, Margaux Gallerand, Vincent Lombardi, Laurent Mascarell, Quentin Marquant, Lionel Apetoh, François Erard, Marc Le Bert, Fabrice Trovero, Valérie F J Quesniaux, Bernhard Ryffel, Dieudonnée Togbe
BACKGROUND: Protein kinase C (PKC) θ, a serine/threonine kinase, is involved in TH2 cell activation and proliferation. Type 2 innate lymphoid cells (ILC2s) resemble TH2 cells and produce the TH2 cytokines IL-5 and IL-13 but lack antigen-specific receptors. The mechanism by which PKC-θ drives innate immune cells to instruct TH2 responses in patients with allergic lung inflammation remains unknown. OBJECTIVES: We hypothesized that PKC-θ contributes to ILC2 activation and might be necessary for ILC2s to instruct the TH2 response...
October 14, 2016: Journal of Allergy and Clinical Immunology
keyword
keyword
92255
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"