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https://www.readbyqxmd.com/read/28336364/mechanisms-and-roles-by-which-irf-3-mediates-the-regulation-of-ormdl3-transcription-in-respiratory-syncytial-virus-infection
#1
Xiao-Hua Wang, Jin Shu, Chun-Ming Jiang, Li-Li Zhuang, Wei-Xia Yang, Hui-Weng Zhang, Lu-Lu Wang, Lin Li, Xiao-Qing Chen, Rui Jin, Guo-Ping Zhou
Respiratory syncytial virus (RSV) is the leading cause of bronchiolitis in infancy, which is a major risk factor for recurrent wheezing and asthma. Orosomucoid 1-Like Protein 3 (ORMDL3) has been reported to associate with virus-triggered recurrent wheezing and asthma in children. However, little is known about how ORMDL3 is involved into RSV infection. In this study, we showed that the mRNA expression of ORMDL3 is significantly increased in the peripheral blood lymphocytes of infants with RSV-induced bronchiolitis compared with uninfected controls, also increased in bronchial epithelial cells and lung fibroblasts following RSV infection in vitro...
March 20, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28331615/nuclear-irf-1-expression-as-a-mechanism-to-assess-capability-to-express-pd-l1-and-response-to-pd-1-therapy-in-metastatic-melanoma
#2
James W Smithy, Lauren M Moore, Vasiliki Pelekanou, Jamaal Rehman, Patricia Gaule, Pok Fai Wong, Veronique M Neumeister, Mario Sznol, Harriet M Kluger, David L Rimm
BACKGROUND: Predictive biomarkers for antibodies against programmed death 1 (PD-1) remain a major unmet need in metastatic melanoma. Specifically, response is seen in tumors that do not express programmed death ligand 1 (PD-L1), highlighting the need for a more sensitive biomarker. We hypothesize that capacity to express PD-L1, as assessed by an assay for a PD-L1 transcription factor, interferon regulatory factor 1 (IRF-1), may better distinguish patients likely to benefit from anti-PD-1 immunotherapy...
2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28318807/microrna-302d-targets-irf9-to-regulate-the-ifn-induced-gene-expression-in-sle
#3
Siobhán Smith, Thilini Fernando, Pei Wen Wu, Jane Seo, Joan Ní Gabhann, Olga Piskareva, Eoghan McCarthy, Donough Howard, Paul O'Connell, Richard Conway, Phil Gallagher, Eamonn Molloy, Raymond L Stallings, Grainne Kearns, Lindsy Forbess, Mariko Ishimori, Swamy Venuturupalli, Daniel Wallace, Michael Weisman, Caroline A Jefferies
Systemic lupus erythematosus (SLE) is a complex disease targeting multiple organs as a result of overactivation of the type I interferon (IFN) system, a feature currently being targeted by multiple biologic therapies against IFN-α. We have identified an estrogen-regulated microRNA, miR-302d, whose expression is decreased in SLE patient monocytes and identify its target as interferon regulatory factor (IRF)-9, a critical component of the transcriptional complex that regulates expression of interferon-stimulated genes (ISGs)...
March 17, 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/28297677/recombinant-bcg-expressing-esx-1-of-mycobacterium-marinum-combines-low-virulence-with-cytosolic-immune-signaling-and-improved-tb-protection
#4
Matthias I Gröschel, Fadel Sayes, Sung Jae Shin, Wafa Frigui, Alexandre Pawlik, Mickael Orgeur, Robin Canetti, Nadine Honoré, Roxane Simeone, Tjip S van der Werf, Wilbert Bitter, Sang-Nae Cho, Laleh Majlessi, Roland Brosch
Recent insights into the mechanisms by which Mycobacterium tuberculosis, the etiologic agent of human tuberculosis, is recognized by cytosolic nucleotide sensors have opened new avenues for rational vaccine design. The only licensed anti-tuberculosis vaccine, Mycobacterium bovis BCG, provides limited protection. A feature of BCG is the partial deletion of the ESX-1 type VII secretion system, which governs phagosomal rupture and cytosolic pattern recognition, key intracellular phenotypes linked to increased immune signaling...
March 14, 2017: Cell Reports
https://www.readbyqxmd.com/read/28288457/interferon-dependent-induction-of-clr-b-during-mouse-cytomegalovirus-infection-protects-bystander-cells-from-natural-killer-cells-via-nkr-p1b-mediated-inhibition
#5
Christina L Kirkham, Oscar A Aguilar, Tao Yu, Miho Tanaka, Aruz Mesci, Kuan-Lun Chu, Jason H Fine, Karen L Mossman, Rod Bremner, David S J Allan, James R Carlyle
Natural killer (NK) cells are innate lymphocytes that aid in self-nonself discrimination by recognizing cells undergoing pathological alterations. The NKR-P1B inhibitory receptor recognizes Clr-b, a self-encoded marker of cell health downregulated during viral infection. Here, we show that Clr-b loss during mouse cytomegalovirus (MCMV) infection is predicated by a loss of Clr-b (Clec2d) promoter activity and nascent transcripts, driven in part by MCMV ie3 (M122) activity. In contrast, uninfected bystander cells near MCMV-infected fibroblasts reciprocally upregulate Clr-b expression due to paracrine type-I interferon (IFN) signaling...
March 14, 2017: Journal of Innate Immunity
https://www.readbyqxmd.com/read/28286505/mda5-induces-a-stronger-interferon-response-than-rig-i-to-gcrv-infection-through-a-mechanism-involving-the-phosphorylation-and-dimerization-of-irf3-and-irf7-in-cik-cells
#6
Quanyuan Wan, Chunrong Yang, Youliang Rao, Zhiwei Liao, Jianguo Su
Retinoic acid-inducible gene I (RIG-I) and melanoma differentiation-associated gene 5 (MDA5) are critical cytosolic sensors that trigger the production of interferons (IFNs). Though their recognition functions are well identified, their unique roles in the downstream signal transduction remain to be elucidated. Herein, we report the differential effect between grass carp (Ctenopharyngodon idella) MDA5 (CiMDA5) and CiRIG-I on the production of various IFNs upon grass carp reovirus (GCRV) infection in C. idella kidney (CIK) cell line...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28283223/interferon-regulatory-factor-signaling-in-autoimmune-disease
#7
REVIEW
Bharati Matta, Su Song, Dan Li, Betsy J Barnes
Interferon regulatory factors (IRFs) play critical roles in pathogen-induced innate immune responses and the subsequent induction of adaptive immune response. Dysregulation of IRF signaling is therefore thought to contribute to autoimmune disease pathogenesis. Indeed, numerous murine in vivo studies have documented protection from or enhanced susceptibility to particular autoimmune diseases in Irf-deficient mice. What has been lacking, however, is replication of these in vivo observations in primary immune cells from patients with autoimmune disease...
March 7, 2017: Cytokine
https://www.readbyqxmd.com/read/28266555/interferon-regulatory-factor-1-activates-autophagy-to-aggravate-hepatic-ischemia-reperfusion-injury-via-the-p38-p62-pathway-in-mice
#8
Yao Yu, Shipeng Li, Zhen Wang, Jindan He, Yijie Ding, Haiming Zhang, Wenli Yu, Yiwei Shi, Zilin Cui, Ximo Wang, Zhiliang Wang, Liying Sun, Rongxin Zhang, Hongyin Du, Zhijun Zhu
Increasing evidence has linked autophagy to a detrimental role in hepatic ischemia- reperfusion (IR) injury (IRI). Here we focus on the role of interferon regulatory factor-1 (IRF-1) in regulating autophagy to aggravate hepatic IRI. We found that IRF-1 was up-regulated during hepatic IRI and was associated with an activation of the autophagic signaling. This increased IRF-1 expression, which was allied with high autophagic activity, amplified liver damage to IR, an effect which was abrogated by IRF-1 depletion...
March 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28247057/novel-hematological-parameters-for-the-evaluation-of-patients-with-myeloproliferative-neoplasms-the-immature-platelet-and-reticulocyte-fractions
#9
Paolo Strati, Prithviraj Bose, Lindsey Lyle, Katie Gaw, Lingsha Zhou, Sherry A Pierce, Julie Huynh-Lu, Cheryl F Hirsch-Ginsberg, Daniel E Bueso-Mendoza, Carlos E Bueso-Ramos, Srdan Verstovsek
New automated hematology analyzers have led to the availability of novel hematological parameters, including the immature platelet fraction (IPF) and the immature reticulocyte fraction (IRF), both of potential interest in patients with myeloproliferative neoplasms (MPNs). We performed a prospective analysis of 217 patients with MPN, including 32 (15%) with essential thrombocythemia (ET), 43 (20%) with polycythemia vera (PV), and 142 (65%) with myelofibrosis (MF); the IPF and IRF were measured by the Sysmex XN analyzer...
February 28, 2017: Annals of Hematology
https://www.readbyqxmd.com/read/28243325/interferon-regulatory-factor-7-promoted-glioblastoma-progression-and-stemness-by-modulating-il-6-expression-in-microglia
#10
Zongze Li, Qiming Huang, Heping Chen, Zhiqin Lin, Meng Zhao, Zhongli Jiang
BACKGROUND: Interferon Regulatory Factor 7 (IRF7) is associated with chronic inflammation initiated by the activation of microglia. However it remains poorly defined how IRF7 activates microglia to initiate inflammatory microenvironment, and thus promotes the growth and malignancy of glioblastoma multiforme (GBM). This study investigated the role of IRF7 expression in microglia which increases GBM progression. METHODS: We established stable human microglia (HMs) over-expressing IRF-7 or empty vector by lentiviral transduction and stable selection...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28241322/three-dimensional-analysis-of-morphologic-changes-and-visual-outcomes-in-neovascular-age-related-macular-degeneration
#11
Hyungwoo Lee, Aerin Jo, Hyung Chan Kim
Purpose: To investigate the association of three-dimensionally quantified lesions with best-corrected visual acuity (BCVA) in typical neovascular age-related macular degeneration (nAMD). Methods: We retrospectively analyzed 65 eyes of 61 typical nAMD patients. Lesions at baseline and month 12 were manually delineated in optical coherence tomography. The volume of intraretinal fluid (IRF), subretinal fluid (SRF), subretinal hyperreflective material (SHRM), and pigment epithelial detachment (PED) were measured...
February 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28239379/estrogen-receptor-dependent-regulation-of-dendritic-cell-development-and-function
#12
REVIEW
Sophie Laffont, Cyril Seillet, Jean-Charles Guéry
Autoimmunity, infectious diseases and cancer affect women and men differently. Because they tend to develop more vigorous adaptive immune responses than men, women are less susceptible to some infectious diseases but also at higher risk of autoimmunity. The regulation of immune responses by sex-dependent factors probably involves several non-redundant mechanisms. A privileged area of study, however, concerns the role of sex steroid hormones in the biology of innate immune cells, especially dendritic cells (DCs)...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28239027/estrous-cycle-stage-dependent-manner-of-type-i-interferon-stimulated-genes-induction-in-the-bovine-endometrium
#13
Takahiro Shirozu, Hiroki Iwano, Takatoshi Ogiso, Toshiyuki Suzuki, Ahmed Z Balboula, Hanako Bai, Manabu Kawahara, Koji Kimura, Hitomi Takahashi, Bai Rulan, Sung-Woo Kim, Yojiro Yanagawa, Masashi Nagano, Kazuhiko Imakawa, Masashi Takahashi
Interferon tau (IFN-τ) is a ruminant-specific type I IFN secreted by a conceptus before its attachment to the uterus. IFN-τ induces the expression of IFN-stimulated genes (ISGs) via the type I IFN receptor (IFNAR), which is composed of IFNAR1 and IFNAR2 subunits in the endometrium. However, expression patterns of IFNARs during the estrous cycle have not been reported. We hypothesized that the response to a type I IFN changes along with IFNARs and the IFN-regulatory factors (IRFs) driving transcription of IFN signal-related genes and modulating a type I IFN signal during the estrous cycle...
February 26, 2017: Journal of Reproduction and Development
https://www.readbyqxmd.com/read/28238528/impact-of-insurance-precertification-on-discharge-of-stroke-patients-to-acute-rehabilitation-or-skilled-nursing-facility
#14
Andrew L Smith, Ashish Kulhari, Julie A Wolfram, Anthony Furlan
BACKGROUND AND PURPOSE: The purpose of this study is to determine if the common insurance practice of requiring precertification before a medically ready stroke patient can be discharged to a skilled nursing facility (SNF) or inpatient rehabilitation facility (IRF) causes a delay in discharge. Eliminating delays in discharge of stroke patients is important given the increasing demands for health-care efficiency after the passage of the Affordable Health Care Act. METHODS: A retrospective chart review of 1007 patients who were admitted to our comprehensive stroke center with the primary diagnosis of stroke over a 12-month period was performed...
February 23, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28218976/differential-expression-of-innate-immune-response-genes-in-clinical-phases-of-chronic-hepatitis-b-infection
#15
Sara Romani, Seyed Masoud Hosseini, Seyed Reza Mohebbi, Andre Boonstra, Afsaneh Sharifian
We investigated innate immune gene expression in clinical phases of Chronic Hepatitis B infection, including immune tolerant (IT); immune active (IA); inactive carrier (IC); and hepatitis B e antigen (HBeAg)-negative phases, as well as healthy controls. Expression levels of interferon types I, II, and III, their receptor subunits, IRFs, TLRs and other IFN-induced genes in peripheral blood mononuclear cells were compared.Forty HBsAg-positive treatment-naïve subjects without co-infection with HIV, HCV or HDV were enrolled...
February 20, 2017: Journal of Viral Hepatitis
https://www.readbyqxmd.com/read/28214235/effects-of-postacute-settings-on-readmission-rates-and-reasons-for%C3%A2-readmission-following-total-knee-arthroplasty
#16
Rodney Laine Welsh, James E Graham, Amol M Karmarkar, Natalie E Leland, Jacques G Baillargeon, Dana L Wild, Kenneth J Ottenbacher
OBJECTIVES: Examine the effects of postacute discharge setting on unplanned hospital readmissions following total knee arthroplasty (TKA) in older adults. DESIGN: Secondary analyses of 100% Medicare (inpatient) claims files. SETTING: Acute hospitals across the United States. PARTICIPANTS: Medicare fee-for-service beneficiaries ≥66 years of age who were discharged from an acute hospital following TKA in 2009-2011 (n = 608,031)...
April 1, 2017: Journal of the American Medical Directors Association
https://www.readbyqxmd.com/read/28209510/microarray-and-gene-co-expression-analysis-reveals-that-melatonin-attenuates-immune-responses-and-modulates-actin-rearrangement-in-macrophages
#17
Miki Kadena, Yutaro Kumagai, Alexis Vandenbon, Hitomi Matsushima, Haruka Fukamachi, Noboru Maruta, Hideo Kataoka, Takafumi Arimoto, Hirobumi Morisaki, Takahiro Funatsu, Hirotaka Kuwata
Melatonin produced by the pineal gland suppresses inflammatory responses in innate immune cells. However, the mechanism of how melatonin affects inflammatory gene regulation remains unclear. Here we performed comprehensive microarray analysis combined with transcription factor binding site (TFBS) analysis using LPS-induced mouse macrophages to investigate the effect of melatonin treatment. The results showed that melatonin preferentially downregulated interferon regulatory factors (IRFs) and signal transducers and activators of transcription (STATs) related signaling...
April 1, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28196779/the-role-of-type-i-interferons-in-innate-and-adaptive-immunity-against-viruses-in-atlantic-salmon
#18
Børre Robertsen
Type I IFNs (IFN-I) are cytokines, which play a crucial role in innate and adaptive immunity against viruses of vertebrates. In essence, IFN-I are induced and secreted upon host cell recognition of viral nucleic acids and protect other cells against infection by inducing antiviral proteins. Atlantic salmon possesses an extraordinary repertoire of IFN-I genes encompassing at least six different classes (IFNa, IFNb, IFNc, IFNd, IFNe and IFNf) most of which are encoded by several genes. This review describes recent research on the functions of salmon IFNa, IFNb, IFNc and IFNd...
February 11, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/28194834/steering-siglec-sialic-acid-interactions-on-living-cells-using-bioorthogonal-chemistry
#19
Christian Büll, Torben Heise, Niek van Hilten, Johan F A Pijnenborg, Victor R L J Bloemendal, Lotte Gerrits, Esther D Kers-Rebel, Tina Ritschel, Martijn H den Brok, Gosse J Adema, Thomas J Boltje
Sialic acid sugars that terminate cell-surface glycans form the ligands for the sialic acid binding immunoglobulin-like lectin (Siglec) family, which are immunomodulatory receptors expressed by immune cells. Interactions between sialic acid and Siglecs regulate the immune system, and aberrations contribute to pathologies like autoimmunity and cancer. Sialic acid/Siglec interactions between living cells are difficult to study owing to a lack of specific tools. Here, we report a glycoengineering approach to remodel the sialic acids of living cells and their binding to Siglecs...
March 13, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28193321/acute-rehabilitation-after-trauma-does-it-really-matter
#20
Deepika Nehra, Zeynep A Nixon, Claudia Lengenfelder, Eileen M Bulger, Joseph Cuschieri, Ronald V Maier, Saman Arbabi
BACKGROUND: The impact of post-discharge rehabilitation care for the trauma patient remains poorly investigated. Here we describe the functional outcomes of trauma patients discharged to an inpatient rehabilitation facility (IRF), and compare the likelihood of discharge home, 1-year rehospitalization, and 1-year mortality between patients discharged to an IRF and a propensity score-matched cohort of patients not discharged to an IRF. STUDY DESIGN: The Washington State Rehabilitation Registry was used to collect data for all trauma patients discharged to an IRF between 2011 and 2012...
December 2016: Journal of the American College of Surgeons
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