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https://www.readbyqxmd.com/read/28822831/ifna-as1-regulates-cd4-t-cell-activation-in-myasthenia-gravis-though-hla-drb1
#1
Mengchuan Luo, Xiaofang Liu, Huanyu Meng, Liqun Xu, Yi Li, Zhibin Li, Chang Liu, Yuebei Luo, Bo Hu, Yuanyuan Xue, Yu Liu, Zhaohui Luo, Huan Yang
Abnormal CD4(+)T cell activation is known to play roles in the pathogenesis of myasthenia gravis (MG). However, little is known about the mechanisms underlying the roles of lncRNAs in regulating CD4(+) cell. In this study, we discovered that the lncRNA IFNG-AS1 is abnormally expressed in MG patients associated with quantitative myasthenia gravis (QMG) and the positive anti-AchR Ab levels patients. IFNG-AS1 influenced Th1/Treg cell proliferation and regulated the expression levels of their transcription factors in an experimental autoimmune myasthenia gravis (EAMG)model...
August 16, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/28662157/sex-dependent-aortic-valve-pathology-in-patients-with-rheumatic-heart-disease
#2
Feng Xiao, Rui Zheng, Di Yang, Kejiang Cao, Shijiang Zhang, Bingruo Wu, Yongfeng Shao, Bin Zhou
BACKGROUND: Rheumatic heart disease is an autoimmune disease caused by group A streptococci infection and frequently affects the aortic valve. Sex differences are common in the disease progression, treatment, and outcome. However, little is known about the sex differences in the pathology of aortic valves in rheumatic heart disease. DESIGN: We studied the end-stage calcific aortic valves from male versus female patients to reveal the sex-dependent pathology differences and molecular changes associated with requiring valve replacement...
2017: PloS One
https://www.readbyqxmd.com/read/28641569/a-review-on-defects-of-dendritic-cells-in-common-variable-immunodeficiency
#3
Laleh Sharifi, Naeimeh Tavakolinia, Fatemeh Kiaee, Nima Rezaei, Monireh Mohsenzadegan, Mansoureh Shariat, Reza Yazdani, Abbas Mirshafiey, Asghar Aghamohammadi, Gholamreza Azizi
BACKGROUND AND OBJECTIVES: Common variable immunodeficiency (CVID) is the most important primary that is associated with clinical complications including recurrent infections, malignancy and autoimmune diseases. The genetic cause of CVID is mostly unknown and only a few genetic causes are identified. The various options are proposed for determining the etiology of CVID patients, such as T- and B-cell defects, Toll-like receptors (TLRs) impairments, altered cytokine production as well as blemished dendritic cells (DCs)...
June 13, 2017: Endocrine, Metabolic & Immune Disorders Drug Targets
https://www.readbyqxmd.com/read/28601724/ifna-approved-chinese-anaesthesia-nurse-education-program-a-delphi-method
#4
Jiale Hu, Michael D Fallacaro, Lili Jiang, Junyan Wu, Hong Jiang, Zhen Shi, Hong Ruan
BACKGROUND: Numerous nurses work in operating rooms and recovery rooms or participate in the performance of anaesthesia in China. However, the scope of practice and the education for Chinese Anaesthesia Nurses is not standardized, varying from one geographic location to another. Furthermore, most nurses are not trained sufficiently to provide anaesthesia care. OBJECTIVES: This study aimed to develop the first Anaesthesia Nurse Education Program in Mainland China based on the Educational Standards of the International Federation of Nurse Anaesthetists...
June 4, 2017: Nurse Education Today
https://www.readbyqxmd.com/read/28595093/association-of-polymorphisms-in-key-th-17-immune-response-genes-with-hbeag-positive-chronic-hepatitis-b-susceptibility-and-response-to-peg-ifna-2%C3%AE
#5
Hui Ju, Hua Liu, Zi-Bin Tian, Yue-Ping Jiang, Cui-Ping Zhang, Xi-Shuang Liu
This study aims to investigate effects of polymorphisms in key Th-17 immune response genes on the susceptibility to HBeAg-positive (HBeAg(+)) chronic hepatitis B (CHB) and response to PEG-IFNa-2α. A total of 139 patients with HBeAg(+) CHB treated with PEG-IFNa-2α and 145 healthy controls were enrolled to explore the association between IL-17A, IL-17F, IL-21 and IL-23R polymorphisms and HBeAg(+) CHB susceptibility, as well as treatment efficacies. Genotypes were determined by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) and DNA sequencing...
September 2017: Virology
https://www.readbyqxmd.com/read/28456632/tumor-necrosis-factor-inhibits-spread-of-hepatitis-c-virus-among-liver-cells-independent-from-interferons
#6
Stephen M Laidlaw, Svetlana Marukian, Rachel H Gilmore, Siobhán B Cashman, Volodymyr Nechyporuk-Zloy, Charles M Rice, Lynn B Dustin
BACKGROUND & AIMS: Tumor necrosis factor (TNF) is an inflammatory cytokine expressed by human fetal liver cells (HFLCs) after infection with cell culture-derived hepatitis C virus (HCV). TNF has been reported to increase entry of HCV pseudoparticles into hepatoma cells and inhibit signaling by interferon alpha (IFNα), but have no effect on HCV-RNA replication. We investigated the effects of TNF on HCV infection of and spread among Huh-7 hepatoma cells and primary HFLCs. METHODS: Human hepatoma (Huh-7 and Huh-7...
August 2017: Gastroenterology
https://www.readbyqxmd.com/read/28429853/molecular-cloning-of-mda5-phylogenetic-analysis-of-rig-i-like-receptors-rlrs-and-differential-gene-expression-of-rlrs-interferons-and-proinflammatory-cytokines-after-in%C3%A2-vitro-challenge-with-ipnv-isav-and-sav-in-the-salmonid-cell-line-to
#7
I-K G Nerbøvik, M A Solheim, H Ø Eggestøl, A Rønneseth, R A Jakobsen, H I Wergeland, G T Haugland
The RIG-I receptors RIG-I, MDA5 and LGP2 are involved in viral recognition, and they have different ligand specificity and recognize different viruses. Activation of RIG-I-like receptors (RLRs) leads to production of cytokines essential for antiviral immunity. In fish, most research has focused on interferons, and less is known about the production of proinflammatory cytokines during viral infections. In this study, we have cloned the full-length MDA5 sequence in Atlantic salmon, and compared it with RIG-I and LGP2...
April 21, 2017: Journal of Fish Diseases
https://www.readbyqxmd.com/read/28351933/cytosolic-dna-sensor-initiated-innate-immune-responses-in-mouse-ovarian-granulosa-cells
#8
Keqin Yan, Dingqing Feng, Jing Liang, Qing Wang, Lin Deng, Xiao Zhang, Bin Ling, Daishu Han
Viral infections of the ovary may perturb ovarian functions. However, the mechanisms underlying innate immune responses in the ovary are poorly understood. The present study demonstrates that cytosolic viral DNA sensor signaling initiates the innate immune response in mouse ovarian granulosa cells and affects endocrine function. The cytosolic DNA sensors p204 and cGAS and their common signaling adaptor stimulator of interferon (IFN) genes (STING) were constitutively expressed in granulosa cells. Transfection with VACV70, a synthetic vaccinia virus (VACV) DNA analogue, induced the expression of type I interferons (IFNA/B) and major inflammatory cytokines (TNFA and IL6) through IRF3 and NF-κB activation, respectively...
March 28, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28316372/dyslipidemia-rather-than-type-2-diabetes-mellitus-or-chronic-periodontitis-affects-the-systemic-expression-of-pro-and-anti-inflammatory-genes
#9
Rafael Nepomuceno, Bárbara Scoralick Villela, Sâmia Cruz Tfaile Corbi, Alliny De Souza Bastos, Raquel Alves Dos Santos, Catarina Satie Takahashi, Silvana Regina Perez Orrico, Raquel Mantuaneli Scarel-Caminaga
A high percentage of type 2 diabetes mellitus (T2D) patients are also affected by dyslipidemia and chronic periodontitis (CP), but no studies have determined the gene expression in patients that are simultaneously affected by all three diseases. We investigated the systemic expression of immune-related genes in T2D, dyslipidemia, and CP patients. One hundred and fifty patients were separated into five groups containing 30 individuals each: (G1) poorly controlled T2D with dyslipidemia and CP; (G2) well-controlled T2D with dyslipidemia and CP; (G3) normoglycemic individuals with dyslipidemia and CP; (G4) healthy individuals with CP; (G5) systemic and periodontally healthy individuals...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28196779/the-role-of-type-i-interferons-in-innate-and-adaptive-immunity-against-viruses-in-atlantic-salmon
#10
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/28137651/immune-gene-profiles-in-atlantic-salmon-salmo-salar-l-post-smolts-infected-with-sav3-by-bath-challenge-show-a-delayed-response-and-lower-levels-of-gene-transcription-compared-to-injected-fish
#11
L J Moore, J Jarungsriapisit, T O Nilsen, S Stefansson, G L Taranger, C J Secombes, H C Morton, S Patel
Salmonid alphavirus (SAV) causes pancreatic disease (PD) in salmonids in Northern Europe which results in large economic losses within the aquaculture industry. In order to better understand the underlying immune mechanisms during a SAV3 infection Atlantic salmon post-smolts were infected by either i.m.-injection or bath immersion and their immune responses compared. Analysis of viral loads showed that by 14 dpi i.m.-injected and bath immersion groups had 95.6% and 100% prevalence respectively and that both groups had developed the severe pathology typical of PD...
March 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28123444/the-presence-of-autoantibodies-to-cytoplasmic-rod-and-ring-particles-in-the-serum-of-patients-with-chronic-hepatitis-c-virus-infection
#12
Fatemeh Afsharzadeh, Farah Bokharaei-Salim, Maryam Esghaei, Seyed Hamidreza Monavari, Shahin Merat, Hossein Poustchi, Arghavan Haj-Sheykholeslami, Hossein Keyvani
BACKGROUND: Chronic hepatitis C virus (HCV) is associated with extra hepatic autoimmune disorders, while peg-IFNa-2a/RBV combination therapy may exacerbate these conditions. Autoantibodies to cytoplasmic structures, called rod and ring particles (RR), have strong associations with these patients and are identified by HEp-2 cells. OBJECTIVES: Our purpose was to study the correlation of autoantibodies to cytoplasmic rod and ring particles in the serum of patients with chronic HCV infection with their response to standard therapy...
December 2016: Hepatitis Monthly
https://www.readbyqxmd.com/read/27902420/interleukin-1-receptor-antagonist-an-early-immunomodulatory-cytokine-induced-by-porcine-reproductive-and-respiratory-syndrome-virus
#13
Teerawut Nedumpun, Piya Wongyanin, Chaitawat Sirisereewan, Patcharee Ritprajak, Tanapat Palaga, Roongroje Thanawongnuwech, Sanipa Suradhat
Porcine reproductive and respiratory syndrome virus (PRRSV) infection poorly induces pro-inflammatory cytokines (IL-1, IL-6 and TNF-α) and type I IFN production during the early phase of infection. Our microarray analysis indicated strong upregulation of the IL1RA gene in type 2 PRRSV -infected monocyte-derived dendritic cells. Interleukin-1 receptor antagonist (IL-1Ra) is an early inhibitory cytokine that suppresses pro-inflammatory cytokines and T-lymphocyte responses. To investigate the induction of IL-1Ra by PRRSV, monocyte-derived dendritic cells were cultured with type 2 PRRSV or other swine viruses...
January 2017: Journal of General Virology
https://www.readbyqxmd.com/read/27530458/protection-of-atlantic-salmon-against-salmonid-alphavirus-infection-by-type-i-interferons-ifna-ifnb-and-ifnc
#14
Chia-Jung Chang, Iris Jenssen, Børre Robertsen
Salmonid alphavirus 3 (SAV3) causes pancreas disease (PD), which is a major problem in Norwegian aquaculture of Atlantic salmon. In this work we studied antiviral activities of salmon type I interferons IFNa, IFNb and IFNc against SAV3 infection in cell culture and in live fish to increase the understanding of the innate immunity of salmon against this virus. Recombinant IFNa, IFNb and IFNc all induced antiviral activity against SAV3 in ASK cells. For in vivo studies, we injected salmon presmolts intramuscularly with plasmids encoding salmon IFNa, IFNb and IFNc or a control plasmid and measured expression of the antiviral protein Mx in pancreas after 2 and 10 weeks and protection against SAV3 infection after 10 weeks...
October 2016: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/27522115/human-effector-b-lymphocytes-express-arid3a-and-secrete-interferon-alpha
#15
Julie M Ward, Michelle L Ratliff, Mikhail G Dozmorov, Graham Wiley, Joel M Guthridge, Patrick M Gaffney, Judith A James, Carol F Webb
Previously, we determined that enhanced disease activity in patients with systemic lupus erythematosus (SLE) was associated with dramatic increases in numbers of B lymphocytes expressing the transcription factor ARID3a. Our data now indicate ARID3a is important for interferon alpha (IFNa) expression and show a strong association between ARID3a expression and transcription of genes associated with lupus IFN signatures. Furthermore, both ARID3a and IFNa production were elicited in healthy control B cells upon stimulation with the TLR 9 agonist, CpG...
December 2016: Journal of Autoimmunity
https://www.readbyqxmd.com/read/27396621/drug-repurposing-of-minocycline-against-dengue-virus-infection
#16
Shilpa Lekshmi Leela, Chatchawan Srisawat, Gopinathan Pillai Sreekanth, Sansanee Noisakran, Pa-Thai Yenchitsomanus, Thawornchai Limjindaporn
Dengue virus infection is one of the most common arthropod-borne viral diseases. A complex interplay between host and viral factors contributes to the severity of infection. The antiviral effects of three antibiotics, lomefloxacin, netilmicin, and minocycline, were examined in this study, and minocycline was found to be a promising drug. This antiviral effect was confirmed in all four serotypes of the virus. The effects of minocycline at various stages of the viral life cycle, such as during viral RNA synthesis, intracellular envelope protein expression, and the production of infectious virions, were examined and found to be significantly reduced by minocycline treatment...
September 9, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27234230/long-term-efficacy-and-safety-of-interferon-%C3%AE-2a-therapy-in-severe-refractory-ophthalmic-behcet-s-disease
#17
Hadise Kavandi, Alireza Khabbazi, Sousan Kolahi, Mehrzad Hajialilo, Farid Karkon Shayan, Mohammad Oliaei
Ophthalmic involvement is the most debilitating complication of Behcet's disease (BD). The aim of the current study is to report on the efficacy and safety of a long-term use of interferon alpha-2a (IFNα-2a) in the treatment of refractory ophthalmic BD in the Azari population of Iran. We retrospectively analyzed the clinical data of 12 patients with ophthalmic BD who were under IFNα-2a therapy. All these patients had previously been treated unsuccessfully with corticosteroid and at least one conventional immunosuppressive drug...
November 2016: Clinical Rheumatology
https://www.readbyqxmd.com/read/27192830/-forced-oscillations-of-dna-bases
#18
L V Yakushevich, L A Krasnobaeva
This paper presents the results of the studying of forced angular oscillations of the DNA bases with the help of the mathematical model consisting of two coupled nonlinear differential equations that take into account the effects of dissipation and the influence of an external periodic field. The calculation results are illustrated for sequence of gene encoding interferon alpha 17 (IFNA 17).
March 2016: Biofizika
https://www.readbyqxmd.com/read/27157597/ifna-of-triploid-hybrid-of-gold-fish-and-allotetraploid-is-an-antiviral-cytokine-against-svcv-and-gcrv
#19
Jun Yan, Lingzhi Peng, Yang Li, Hui Fan, Yu Tian, Shaojun Liu, Hao Feng
Triploid hybrid of gold fish (Carassius auratus red var., ♀, 2n = 100) and allotetroploid (♂, 2n = 100) displays much improved disease resistance than its parents. In this paper, one of the type I IFNs of triploid hybrid (3nIFNa) has been cloned and characterized. The full-length cDNA of 3nIFNa consists of 740 nucleotides and the predicted 3nIFNa protein contains 183 amino acids. The mRNA transcription of 3nIFNa was detected in all the selected tissues of triploid hybrid and was obviously enhanced after SVCV or GCRV infection...
July 2016: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/27135045/cytokine-stimulated-phosphoflow-of-whole-blood-using-cytof-mass-cytometry
#20
Rosemary Fernandez, Holden Maecker
The ability to assess the function of a range of cytokine, antigen receptor, and Toll-like receptor (TLR) signaling pathways in a range of immune cells could provide a kind of fingerprint of the state of the human immune system. The mass cytometry or CyTOF, platform allows for the parallel application of about 40 labeled antibodies to a single sample, creating the possibility to read out many cell types and signaling pathways in a single small blood sample. We developed such a mass cytometry panel, consisting of 22 antibodies to cell surface lineage markers and 8 antibodies to phospho-specific epitopes of signaling proteins...
June 5, 2015: Bio-protocol
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