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Type 3 Interferon

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https://www.readbyqxmd.com/read/28936773/intranasal-delivery-of-duox2-dna-using-cationic-polymer-can-prevent-acute-influenza-a-viral-infection-in-vivo-lung
#1
Bong Jik Kim, Sung Woo Cho, Yung Jin Jeon, Sujin An, Ara Jo, Jae Hyun Lim, Dong-Young Kim, Tae-Bin Won, Doo Hee Han, Chae-Seo Rhee, Hyun Jik Kim
We studied the contribution of Duox2 in mucosal host defense against influenza A virus (IAV) infection in in vivo lung. We found that Duox2 was required for the induction of type I and III interferon (IFN)s and transient Duox2 overexpression using cationic polymer polyethyleneimine (PEI) leads to suppression of IAV infection in in vivo lung. Twenty mice (C57BL/6J) were anesthetized and challenged by intranasal administration of 213 pfu/30 μl of IAV (WS/33/H1N1), and IAV-infected mice were euthanized at 1, 3, 5, 7, 10, 14 days post infection (dpi)...
September 21, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28932321/identification-and-characterization-of-interferon-signaling-related-micrornas-in-occult-hepatitis-b-virus-infection
#2
Yiying Wang, Peifu Zhu, Jing Qiu, Jie Wang, Huijuan Zhu, Yinwei Zhu, Lige Zhang, Jie Zhu, Xingxiang Liu, Chen Dong
BACKGROUND: Occult hepatitis B virus infection (OBI) is an important risk factor of liver cirrhosis and hepatocellular carcinoma. Type 1 interferon (IFN) signaling-related miRNAs were significantly associated with hepatitis B virus (HBV) infection. However, the characteristics of serum IFN signaling-related miRNAs in OBI remain unclear. Therefore, this study aimed to analyze the expression levels of serum IFN signaling-related miRNAs in OBI and to evaluate their potential values for OBI diagnosis...
2017: Clinical Epigenetics
https://www.readbyqxmd.com/read/28919775/investigation-of-proliferation-and-migration-of-tongue-squamous-cell-carcinoma-promoted-by-three-chemokines-mip-3%C3%AE-mip-1%C3%AE-and-ip-10
#3
Hongxing Chu, Bo Jia, Xiaoling Qiu, Jie Pan, Xiang Sun, Zhiping Wang, Jianjiang Zhao
The aim of this work was to investigate the role of chemokines in proliferation and migration of tongue squamous cell carcinoma (TSCC). Out of the 80 cytokines surveyed by a human cytokine antibody array, three chemokines, macrophage inflammatory protein-3α (MIP-3α), macrophage inflammatory protein-1β (MIP-1β), and interferon gamma-induced protein 10 (IP-10), showed elevated expression in TSCC cells (CAL-27 and UM-1), compared to the oral mucosal epithelial cells. Immunohistochemistry confirmed the high level of expression of MIP-3α in the TSCC tissues, especially in the high clinical stages...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28916184/role-of-the-il-12-il-35-balance-in-sj%C3%A3-gren-s-syndrome
#4
Olivier Fogel, Elodie Rivière, Raphaèle Seror, Gaetane Nocturne, Saida Boudaoud, Bineta Ly, Jacques-Eric Gottenberg, Véronique Le Guern, Jean-Jacques Dubost, Joanne Nititham, Kimberly E Taylor, Philippe Chanson, Philippe Dieudé, Lindsey A Criswell, Bernd Jagla, Alice Thai, Michael Mingueneau, Xavier Mariette, Corinne Miceli-Richard
BACKGROUND: An interferon (IFN) signature is involved in the pathogenesis of primary Sjögren's syndrome (pSS), but whether the signature is type 1 or 2 remains controversial. Mouse models and genetic studies suggested the involvement of T helper 1 and type 2 IFN pathways. Likewise, polymorphisms of interleukin 12A gene (IL-12A), which encodes for IL-12p35, have been associated with pSS. IL-12p35 subunit is shared by 2 heterodimers, IL-12 and IL-35. OBJECTIVE: To confirm the genetic association of IL-12A polymorphism and pSS and elucidate the involvement of the IL-12/IL-35 balance in pSS by functional studies...
September 12, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28912844/triptolide-inhibits-cd4-memory-t-cell-mediated-acute-rejection-and-prolongs-cardiac-allograft-survival-in-mice
#5
Shuiwei Qiu, Dingliang Lv
There have been numerous investigations into the immunosuppressive effects of triptolide; however, its inhibitory effects on memory T cells remain to be elucidated. Using a cluster of differentiation (CD)4(+) memory T-cell transfer model, the aim of the present study was to determine the inhibitory effects of triptolide on CD4(+) memory T cell-mediated acute rejection and to determine the potential underlying mechanisms. At 4 weeks after skin transplantation, mouse cervical heart transplantation was performed following the transfer of CD4(+) memory T cells...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28912779/v%C3%AE-4-%C3%AE-%C3%AE-t-cells-aggravate-severe-h1n1-influenza-virus-infection-induced-acute-pulmonary-immunopathological-injury-via-secreting-interleukin-17a
#6
Chunxue Xue, Mingjie Wen, Linlin Bao, Hui Li, Fengdi Li, Meng Liu, Qi Lv, Yunqing An, Xulong Zhang, Bin Cao
The influenza A (H1N1) pdm09 virus remains a critical global health concern and causes high levels of morbidity and mortality. Severe acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) are the major outcomes among severely infected patients. Our previous study found that interleukin (IL)-17A production by humans or mice infected with influenza A (H1N1) pdm09 substantially contributes to ALI and subsequent morbidity and mortality. However, the cell types responsible for IL-17A production during the early stage of severe influenza A (H1N1) pdm09 infection remained unknown...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28912017/indoleamine-2-3-dioxygenase-1-increased-in-human-gastric-pre-neoplasia-promotes-inflammation-and-metaplasia-in-mice-and-is-associated-with-type-ii-hypersensitivity-autoimmunity
#7
Mohamad El-Zaatari, Adam J Bass, Reanne Bowlby, Min Zhang, Li-Jyun Syu, Yitian Yang, Helmut Grasberger, Andrew Shreiner, Bei Tan, Shrinivas Bishu, Wai K Leung, Andrea Todisco, Nobuhiko Kamada, Marilia Cascalho, Andrzej A Dlugosz, John Y Kao
BACKGROUND & AIMS: Chronic gastrointestinal inflammation increases the risk of cancer by mechanisms that are not well understood. Indoleamine-2,3-dioxygenase 1 (IDO1) is a heme-binding enzyme that regulates the immune response via catabolization and regulation of tryptophan availability for immune cell uptake. IDO1 expression is increased during the transition from chronic inflammation to gastric metaplasia. We investigated whether IDO1 contributes to the inflammatory response that mediates loss of parietal cells leading to metaplasia...
September 11, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28904192/the-role-of-herpes-simplex-virus-type-1-%C3%AE-34-5-in-the-regulation-of-irf3-signaling
#8
Richard Manivanh, Jesse Mehrbach, David M Knipe, David A Leib
During viral infection, pattern recognition receptors (PRRs) and their associated adaptors recruit TANK-binding kinase 1 (TBK1) to activate interferon regulatory factor 3 (IRF3), resulting in production of type I interferons (IFNs). ICP0 and ICP34.5 are amongst the proteins encoded by herpes simplex virus 1 (HSV-1) that modulate type I IFN signaling. We constructed a recombinant virus (ΔXX) which lacks amino acids 87 - 106, a portion of the previously described TBK1-binding domain of the γ34.5 gene (D. Verpooten, Y...
September 13, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28900831/-18-f-dpa-714-pet-imaging-reveals-global-neuroinflammation-in-zika-virus-infected-mice
#9
Kyle Kuszpit, Bradley S Hollidge, Xiankun Zeng, Robert G Stafford, Sharon Daye, Xiang Zhang, Falguni Basuli, Joseph W Golden, Rolf E Swenson, Darci R Smith, Thomas M Bocan
PURPOSE: The association of Zika virus (ZIKV) infection and development of neurological sequelae require a better understanding of the pathogenic mechanisms causing severe disease. The purpose of this study was to evaluate the ability and sensitivity of positron emission tomography (PET) imaging using [(18)F]DPA-714, a translocator protein (TSPO) 18 kDa radioligand, to detect and quantify neuroinflammation in ZIKV-infected mice. PROCEDURES: We assessed ZIKV-induced pathogenesis in wild-type C57BL/6 mice administered an antibody to inhibit type I interferon (IFN) signaling...
September 12, 2017: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
https://www.readbyqxmd.com/read/28899396/transcriptomic-meta-analysis-identifies-gene-expression-characteristics-in-various-samples-of-hiv-infected-patients-with-nonprogressive-disease
#10
Le-Le Zhang, Zi-Ning Zhang, Xian Wu, Yong-Jun Jiang, Ya-Jing Fu, Hong Shang
BACKGROUND: A small proportion of HIV-infected patients remain clinically and/or immunologically stable for years, including elite controllers (ECs) who have undetectable viremia (<50 copies/ml) and long-term nonprogressors (LTNPs) who maintain normal CD4(+) T cell counts for prolonged periods (>10 years). However, the mechanism of nonprogression needs to be further resolved. In this study, a transcriptome meta-analysis was performed on nonprogressor and progressor microarray data to identify differential transcriptome pathways and potential biomarkers...
September 12, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28895864/immunomodulatory-potential-of-%C3%AE-glucan-as-supportive-treatment-in-porcine-rotavirus-enteritis
#11
Gollahalli Eregowda Chethan, Jugal Garkhal, Shubhankar Sircar, Yash Pal Singh Malik, Reena Mukherjee, Nihar Ranjan Sahoo, Rajesh Kumar Agarwal, Ujjwal Kumar De
A non-blinded randomized clinical trial was conducted to assess the immunomodulatory potential of β-glucan (BG) in piglet diarrhoea associated with type A rotavirus infection. A total of 12 rotavirus-infected diarrheic piglets were randomly divided into two groups: wherein six rotavirus-infected piglets were treated with supportive treatment (ST) and other six rotavirus-infected piglets were treated with BG along with ST (ST-BG). Simultaneously, six healthy piglets were also included in the study which served as control...
September 2017: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/28894449/type-i-interferon-induced-by-streptococcus-suis-serotype-2-is-strain-dependent-and-may-be-beneficial-for-host-survival
#12
Jean-Philippe Auger, Agustina Santinón, David Roy, Karen Mossman, Jianguo Xu, Mariela Segura, Marcelo Gottschalk
Streptococcus suis serotype 2 is an important porcine bacterial pathogen and emerging zoonotic agent mainly responsible for sudden death, septic shock, and meningitis, with exacerbated inflammation being a hallmark of the infection. However, serotype 2 strains are genotypically and phenotypically heterogeneous, being composed of a multitude of sequence types (STs) whose virulence greatly varies: the virulent ST1 (Eurasia), highly virulent ST7 (responsible for the human outbreaks in China), and intermediate virulent ST25 (North America) are the most important worldwide...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28890396/mir-525-3p-mediates-antiviral-defense-to-rotavirus-infection-by-targeting-nonstructural-protein-1
#13
Zhiqiang Tian, Ji Zhang, Haiyang He, Jintao Li, Yuzhang Wu, Zigang Shen
MicroRNAs (miRNAs) are short RNAs of approximately 22 nucleotides that post-transcriptionally regulate gene expression by controlling mRNA stability or translation. They play critical roles in intricate networks of host-pathogen interactions and innate immunity. Rotaviruses (RVs) are the leading cause of severe diarrhea among infants and young children worldwide. This study was undertaken to demonstrate the importance of cellular miRNAs during RV (human Wa RV or Rhesus RV) strain infection. Twenty-nine differentially regulated miRNAs were identified during RV infection, and miR-525-3p was downregulated and validated by quantitative real-time polymerase chain reaction (qRT-PCR)...
September 7, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28889286/detection-of-cyclic-dinucleotides-by-sting
#14
Xiao-Xia Du, Xiao-Dong Su
STING (stimulator of interferon genes) is an essential signaling adaptor protein mediating cytosolic DNA-induced innate immunity for both microbial invasion and self-DNA leakage. STING is also a direct receptor for cytosolic cyclic dinucleotides (CDNs), including the microbial secondary messengers c-di-GMP (3',3'-cyclic di-GMP), 3',3'cGAMP (3',3'-cyclic GMP-AMP), and mammalian endogenous 2',3'cGAMP (2',3'-cyclic GMP-AMP) synthesized by cGAS (cyclic GMP-AMP synthase). Upon CDN binding, STING undergoes a conformational change to enable signal transduction by phosphorylation and finally to active IRF3 (Interferon regulatory factor 3) for type I interferon production...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28887168/hcv-eradication-induced-by-direct-acting-antiviral-agents-reduces-the-risk-of-hepatocellular-carcinoma
#15
George N Ioannou, Pamela K Green, Kristin Berry
BACKGROUND AND AIMS: It is unclear whether direct-acting antiviral (DAA) treatment-induced sustained virologic response (SVR) reduces the risk of hepatocellular carcinoma (HCC) in patients with hepatitis C virus (HCV) infection. We aimed to determine the impact of DAA-induced SVR on HCC risk. METHODS: We identified 62,354 patients who initiated antiviral treatment in the Veterans Affairs (VA) national healthcare system from 1/1/1999 to 12/31/2015, including 35,871 (58%) interferon-only regimens, 4535 (7...
September 5, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28883981/immunization-of-mice-with-soluble-lysate-of-interferon-gamma-expressing-plasmodium-berghei-anka%C3%A2-induces-high-ifn-%C3%AE-production
#16
Ebenezer Taylor, Faith Onditi, Naomi Maina, Hastings Ozwara
BACKGROUND: Efforts in search of lasting malaria vaccine have led to the development of transgenic rodent malaria parasites. As a result, wild type Plasmodium berghei ANKA (WTPbA) has recently been transformed to express mouse interferon gamma (mIFN-γ). The immunomodulatory effect of this transgenic parasite on WTPbA infection has been demonstrated. However, the protective immune responses after repeated immunization with soluble lysate of this parasite has not been investigated. METHODS: Soluble lysate of transgenic PbA (TPbA) was prepared and concentration of IFN-γ in lysate determined by ELISA...
2017: Tropical Diseases, Travel Medicine and Vaccines
https://www.readbyqxmd.com/read/28883758/hydroquinone-suppresses-ifn-%C3%AE-expression-by-targeting-akt-irf3-pathway
#17
Yong Kim, Han Gyung Kim, Sang Yun Han, Deok Jeong, Woo Seok Yang, Jung-Il Kim, Ji Hye Kim, Young-Su Yi, Jae Youl Cho
Previous studies have demonstrated the role of hydroquinone (HQ), a hydroxylated benzene metabolite, in modulating various immune responses; however, its role in macrophage-mediated inflammatory responses is not fully understood. In this study, the role of HQ in inflammatory responses and the underlying molecular mechanism were explored in macrophages. HQ down-regulated the expression of interferon (IFN)-β mRNA in LPS-stimulated RAW264.7 cells without any cytotoxicity and suppressed interferon regulatory factor (IRF)-3-mediated luciferase activity induced by TIR-domain-containing adapter-inducing interferon-β (TRIF) and TANK-binding kinase 1 (TBK1)...
September 2017: Korean Journal of Physiology & Pharmacology
https://www.readbyqxmd.com/read/28883690/direct-acting-antiviral-agents-against-hepatitis-c-virus-and-lipid-metabolism
#18
EDITORIAL
Tatsuo Kanda, Mitsuhiko Moriyama
Hepatitis C virus (HCV) infection induces steatosis and is accompanied by multiple metabolic alterations including hyperuricemia, reversible hypocholesterolemia and insulin resistance. Total cholesterol, low-density lipoprotein-cholesterol and triglyceride levels are increased by peginterferon and ribavirin combination therapy when a sustained virologic response (SVR) is achieved in patients with HCV. Steatosis is significantly more common in patients with HCV genotype 3 but interferon-free regimens are not always effective for treating HCV genotype 3 infections...
August 21, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28878771/coordinated-role-of-toll-like-receptor-3-and-retinoic-acid-inducible-gene-i-in-the-innate-response-of-bovine-endometrial-cells-to-virus
#19
Luisa C Carneiro, Carmen Bedford, Sarah Jacca, Alfonso Rosamilia, Vera F de Lima, Gaetano Donofrio, I Martin Sheldon, James G Cronin
Bovine herpesvirus-4 (BoHV-4) and bovine viral diarrhea virus (BVDV) infect the uterus of cattle, often resulting in reduced fertility, or abortion of the fetus, respectively. Here, exposure of primary bovine endometrial cells to BoHV-4 or BVDV modulated the production of inflammatory mediators. Viral pathogen-associated molecular patterns (PAMPs) are detected via pattern-recognition receptors (PRRs). However, the relative contribution of specific PRRs to innate immunity, during viral infection of the uterus, is unclear...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28871936/xanthoma-like-skin-changes-in-an-elderly-woman-with-a-normal-lipid-profile
#20
Piotr Nockowski, Zdzisław Woźniak, Adam Reich, Joanna Maj
Dear Editor, An 83-year-old woman developed yellow-brownish infiltrates, nodules, and tumors mimicking xanthomas, mostly involving the periorbital and chest area within three months (Figure 1). She had no abnormalities in serum cholesterol or triglycerides levels. A detailed laboratory analysis revealed the presence of mild monoclonal gammopathy with a presence of immunoglobulin G (IgG) kappa light chains; however, according to hematologist consultation, it did not require medical intervention. Imaging assessment and ultrasound examination did not show any specific involvement of internal organs...
July 2017: Acta Dermatovenerologica Croatica: ADC
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