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Immunological pathways

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https://www.readbyqxmd.com/read/28532201/vitamin-d-status-in-algerian-beh%C3%A3-et-s-disease-patients-an-immunomodulatory-effect-on-no-pathway
#1
Zineb Djeraba, Fatiha Benlabidi, Fatma Zohra Djaballah-Ider, Oussama Medjeber, Amina Arroul-Lammali, Houda Belguendouz, Fifi Otmani, Chafia Touil-Boukoffa
Behçet's disease (BD) is an inflammatory multisystemic disorder associated with orogenital ulcers, uveitis and skin lesions with unpredictable episodes of exacerbations and remissions. Even though several immunological and environmental factors contribute to BD progression, its ethiopathogenesis remains uncertain and elusive. Considered as one of the potent environmental factors that can increase prevalence of some autoimmune and inflammatory disorders, vitamin D deficiency has been linked to several diseases as BD...
May 22, 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/28529904/mini-review-of-conventional-and-hypofractionated-radiation-therapy-combined-with-immunotherapy-for-non-small-cell-lung-cancer
#2
REVIEW
Allison M Campbell, Roy H Decker
A successful antitumoral response requires immunological activation as well as an antigenic pool capable of stimulating both the innate and the adaptive immune system. Recent advances in immunotherapy have been aimed at boosting the activation status of the innate and adaptive immune system, including cytokine administration, monoclonal antibodies engineered to target high yield elements in oncogenic signaling pathways, cancer vaccines, and checkpoint inhibitors. Herein, we examine the ways that radiation therapy induced cell death provides a pool of stimulus antigen, and draw parallels from the immunobiology of autoimmunity to explore how the immunogenicity of antigen derived from radiation-induced cell death might augment the antitumoral response...
April 2017: Translational Lung Cancer Research
https://www.readbyqxmd.com/read/28529903/immunotherapy-and-radiation-therapy-for-malignant-pleural-mesothelioma
#3
REVIEW
Evan W Alley, Sharyn I Katz, Keith A Cengel, Charles B Simone
Malignant pleural mesothelioma (MPM) is a particularly aggressive thoracic malignancy with limited survival following combination chemotherapy. As a result, there has been increased interested in immunotherapy for mesothelioma, both in the first-line and salvage settings. Early investigations of interleukin-2 (IL-2) and interferon alfa-2a/b have been limited by modest response rates and toxicity, whereas cytokine gene therapy is currently being investigated and shows early promise. The most prominent class of immunotherapies to be trialed with mesothelioma in the past half-decade has been immune checkpoint inhibitors (CPI)...
April 2017: Translational Lung Cancer Research
https://www.readbyqxmd.com/read/28528707/molecular-transcriptional-and-functional-insights-into-duplicated-goose-type-lysozymes-from-sebastes-schlegelii-and-their-potential-immunological-role
#4
Jehanathan Nilojan, S D N K Bathige, Roopasingam Kugapreethan, W S Thulasitha, Bo-Hye Nam, Jehee Lee
Black rockfish (Sebastes schlegelii), an important aquaculture species in Korea, has been affected by bacterial diseases leading to a drastic decline in production. Goose-type lysozyme (LysG) is a key enzyme of the innate immune system to eradicate bacterial infections. In this study, two isoforms of LysG from black rockfish, designated as RfLysG1 and RfLysG2, have been identified and characterized at the molecular, transcriptional, and functional levels. The deduced amino acid sequences had the LysG family characteristics and exhibited conserved properties, including active residues and domains...
May 18, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28526573/transcriptomic-variation-of-locally-infected-skin-of-epinephelus-coioides-reveals-the-mucosal-immune-mechanism-against-cryptocaryon-irritans
#5
Yazhou Hu, Anxing Li, Yang Xu, Biao Jiang, Geling Lu, Xiaochun Luo
Fish skin is the largest immunologically active mucosal organ, providing first-line defense against external pathogens. However, the skin-associated immune mechanisms of fish are still unclear. Cryptocaryon irritans is an obligate ectoparasitic ciliated protozoan that infects almost all marine fish, and is believed to be an excellent pathogen model to study fish mucosal immunity. In this study, a de novo transcriptome assembly of Epinephelus coioides skin post C. irritans tail-infection was performed for the first time using the Illumina HiSeq™ 2500 system...
May 16, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28522975/hypoxia-and-inactivity-related-physiological-changes-constipation-inflammation-are-not-reflected-at-the-level-of-gut-metabolites-and-butyrate-producing-microbial-community-the-planhab-study
#6
Robert Šket, Nicole Treichel, Tadej Debevec, Ola Eiken, Igor Mekjavic, Michael Schloter, Marius Vital, Jenna Chandler, James M Tiedje, Boštjan Murovec, Zala Prevoršek, Blaž Stres
We explored the assembly of intestinal microbiota in healthy male participants during the run-in (5 day) and experimental phases [21-day normoxic bed rest (NBR), hypoxic bedrest (HBR)], and hypoxic ambulation (HAmb) in a strictly controlled laboratory environment, balanced fluid, and dietary intakes, controlled circadian rhythm, microbial ambiental burden, and 24/7 medical surveillance. The fraction of inspired O2 (FiO2) and partial pressure of inspired O2 (PiO2) were 0.209 and 133.1 ± 0.3 mmHg for NBR and 0...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28521727/comparative-genomic-analysis-of-innate-immunity-reveals-novel-and-conserved-components-in-crustacean-food-crop-species
#7
Alvina G Lai, A Aziz Aboobaker
BACKGROUND: Growing global demands for crustacean food crop species have driven large investments in aquaculture research worldwide. However, large-scale production is susceptible to pathogen-mediated destruction particularly in developing economies. Thus, a thorough understanding of the immune system components of food crop species is imperative for research to combat pathogens. RESULTS: Through a comparative genomics approach utilising extant data from 55 species, we describe the innate immune system of the class Malacostraca, which includes all food crop species...
May 18, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28520518/arrested-development-infantile-hemangioma-and-the-stem-cell-teratogenic-hypothesis
#8
Shaghayegh Harbi, Hannah Park, Michael Gregory, Peter Lopez, Luis Chiriboga, Paolo Mignatti
BACKGROUND: Early-life programming is defined by the adaptive changes made by the fetus in response to an adverse in utero environment. Infantile hemangioma (IH), a vascular anomaly, is the most common tumor of infancy. Here we take IH as the tumor model to propose the stem cell teratogenic hypothesis of tumorigenesis and the potential involvement of the immune system. OBJECTIVES: Teratogenic agents include chemicals, heavy metals, pathogens, and ionizing radiation...
May 18, 2017: Lymphatic Research and Biology
https://www.readbyqxmd.com/read/28515944/identifying-baseline-immune-related-biomarkers-to-predict-clinical-outcome-of-immunotherapy
#9
REVIEW
Sacha Gnjatic, Vincenzo Bronte, Laura Rosa Brunet, Marcus O Butler, Mary L Disis, Jérôme Galon, Leif G Hakansson, Brent A Hanks, Vaios Karanikas, Samir N Khleif, John M Kirkwood, Lance D Miller, Dolores J Schendel, Isabelle Tanneau, Jon M Wigginton, Lisa H Butterfield
As cancer strikes, individuals vary not only in terms of factors that contribute to its occurrence and development, but as importantly, in their capacity to respond to treatment. While exciting new therapeutic options that mobilize the immune system against cancer have led to breakthroughs for a variety of malignancies, success is limited to a subset of patients. Pre-existing immunological features of both the host and the tumor may contribute to how patients will eventually fare with immunotherapy. A broad understanding of baseline immunity, both in the periphery and in the tumor microenvironment, is needed in order to fully realize the potential of cancer immunotherapy...
2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28515464/systems-immunology-of-diabetes-tuberculosis-comorbidity-reveals-signatures-of-disease-complications
#10
Cesar A Prada-Medina, Kiyoshi F Fukutani, Nathella Pavan Kumar, Leonardo Gil-Santana, Subash Babu, Flávio Lichtenstein, Kim West, Shanmugam Sivakumar, Pradeep A Menon, Vijay Viswanathan, Bruno B Andrade, Helder I Nakaya, Hardy Kornfeld
Comorbid diabetes mellitus (DM) increases tuberculosis (TB) risk and adverse outcomes but the pathological interactions between DM and TB remain incompletely understood. We performed an integrative analysis of whole blood gene expression and plasma analytes, comparing South Indian TB patients with and without DM to diabetic and non-diabetic controls without TB. Luminex assay of plasma cytokines and growth factors delineated a distinct biosignature in comorbid TBDM in this cohort. Transcriptional profiling revealed elements in common with published TB signatures from cohorts that excluded DM...
May 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28511554/resveratrol-promotes-recovery-of-immune-function-of-immunosuppressive-mice-by-activating-jnk-nf-%C3%AE%C2%BAb-pathway-in-splenic-lymphocytes
#11
Xin Lai, Mei Cao, Xu Song, Renyong Jia, Yuanfeng Zou, Lixia Li, Xiaoxia Liang, Changliang He, Lizi Yin, Guizhou Yue, Gang Ye, Zhongqiong Yin
Resveratrol, a natural compound found in over 70 plants, is known to possess immunoregulatory effects and anti-inflammatory activity. It has been shown that resveratrol has regulatory effects on different signaling pathways in different diseases. However, few reports have evaluated the effects of resveratrol on reinforcing immunity recovery via activating nuclear factor-κB (NF-κB) pathway and Jun N-terminal kinases (JNK) pathway. The present study aimed to assess immune-enhancing activity and underlying mechanism of resveratrol in immunosuppressive mice...
May 16, 2017: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28511092/epigenetics-and-immunotherapy-the-current-state-of-play
#12
REVIEW
Jennifer Dunn, Sudha Rao
Cancer cells employ a number of mechanisms to escape immunosurveillance and facilitate tumour progression. The recent explosion of interest in immunotherapy, especially immune checkpoint blockade, is a result of discoveries about the fundamental ligand-receptor interactions that occur between immune and cancer cells within the tumour microenvironment. Distinct ligands expressed by cancer cells engage with cell surface receptors on immune cells, triggering inhibitory pathways (such as PD-1/PD-L1) that render immune cells immunologically tolerant...
May 13, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28501913/chronic-myeloid-leukemia-immunobiology-and-novel-immunotherapeutic-approaches
#13
Emilie Cayssials, Francois Guilhot
Imatinib has revolutionized the treatment and prognosis of chronic myeloid leukemia (CML) with survival rates now approaching those of the age-matched healthy population. To be able to discontinue tyrosine kinase inhibitor (TKI) treatment, it is necessary to develop complementary therapies to target minimal residual disease. Recent findings by a number of investigators in both CML mouse models and CML patients offer evidence that many factors in the leukemic microenvironment can collectively contribute to immune escape, including expansion of myeloid-derived suppressor cells, programmed death-1/programmed death-1 ligand interactions resulting in T-cell impairment, expression of soluble suppressive factors such as soluble CD25, and down-regulation of MHC molecules by CML cells...
May 13, 2017: BioDrugs: Clinical Immunotherapeutics, Biopharmaceuticals and Gene Therapy
https://www.readbyqxmd.com/read/28501346/il-13-and-idiopathic-pulmonary-fibrosis-possible-links-and-new-therapeutic-strategies
#14
REVIEW
Giovanni Passalacqua, Marcello Mincarini, Daniele Colombo, Giuseppe Troisi, Marta Ferrari, Diego Bagnasco, Francesco Balbi, Annamaria Riccio, Giorgio Walter Canonica
The recent advances in the knowledge of immunological aspects of many pulmonary diseases, allowed to identify cells, biological functions, cytokines, and receptors that are preferentially involved in each disease. This is the case of asthma, where IL-13 (together with IL-4) is recognized as a central mediator. The role of IL-13 is strictly related, via complex signaling pathways, to eosinophil recruitment and activation, to mucus secretion, periostin generation and to fibrogenic processes (which are part of the remodeling process)...
May 10, 2017: Pulmonary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28497124/parv4-prevalence-phylogeny-immunology-and-coinfection-with-hiv-hbv-and-hcv-in-a-multicentre-african-cohort
#15
Colin P Sharp, William F Gregory, Louise Hattingh, Amna Malik, Emily Adland, Samantha Daniels, Anriette van Zyl, Jonathan M Carlson, Susan Wareing, Anthony Ogwu, Roger Shapiro, Lynn Riddell, Fabian Chen, Thumbi Ndung'u, Philip J R Goulder, Paul Klenerman, Peter Simmonds, Pieter Jooste, Philippa C Matthews
Background: The seroprevalence of human parvovirus-4 (PARV4) varies considerably by region. In sub-Saharan Africa, seroprevalence is high in the general population, but little is known about the transmission routes or the prevalence of coinfection with blood-borne viruses, HBV, HCV and HIV.  Methods: To further explore the characteristics of PARV4 in this setting, with a particular focus on the prevalence and significance of coinfection, we screened a cohort of 695 individuals recruited from Durban and Kimberley (South Africa) and Gaborone (Botswana) for PARV4 IgG and DNA, as well as documenting HIV, HBV and HCV status...
April 7, 2017: Wellcome Open Research
https://www.readbyqxmd.com/read/28494786/compositionally-and-functionally-distinct-sinus-microbiota-in-chronic-rhinosinusitis-patients-have-immunological-and-clinically-divergent-consequences
#16
Emily K Cope, Andrew N Goldberg, Steven D Pletcher, Susan V Lynch
BACKGROUND: Chronic rhinosinusitis (CRS) is a heterogeneous disease characterized by persistent sinonasal inflammation and sinus microbiome dysbiosis. The basis of this heterogeneity is poorly understood. We sought to address the hypothesis that a limited number of compositionally distinct pathogenic bacterial microbiota exist in CRS patients and invoke discrete immune responses and clinical phenotypes in CRS patients. RESULTS: Sinus brushings from patients with CRS (n = 59) and healthy individuals (n = 10) collected during endoscopic sinus surgery were analyzed using 16S rRNA gene sequencing, predicted metagenomics, and RNA profiling of the mucosal immune response...
May 12, 2017: Microbiome
https://www.readbyqxmd.com/read/28493885/genotypic-and-phenotypic-diversity-of-lactobacillus-rhamnosus-clinical-isolates-their-comparison-with-strain-gg-and-their-recognition-by-complement-system
#17
Eija Nissilä, François P Douillard, Jarmo Ritari, Lars Paulin, Hanna M Järvinen, Pia Rasinkangas, Karita Haapasalo, Seppo Meri, Hanna Jarva, Willem M de Vos
Lactobacillus rhamnosus strains are ubiquitous in fermented foods, and in the human body where they are commensals naturally present in the normal microbiota composition of gut, vagina and skin. However, in some cases, Lactobacillus spp. have been implicated in bacteremia. The aim of the study was to examine the genomic and immunological properties of 16 clinical blood isolates of L. rhamnosus and to compare them to the well-studied L. rhamnosus probiotic strain GG. Blood cultures from bacteremic patients were collected at the Helsinki University Hospital laboratory in 2005-2011 and L...
2017: PloS One
https://www.readbyqxmd.com/read/28491335/the-risk-of-acute-rejection-following-kidney-transplant-by-25-hydroxyvitamin-d-and-1-25-dihydroxyvitamin-d-status-a-prospective-cohort-study
#18
Deborah Zimmerman, Andrew A House, S Joseph Kim, Ronald A Booth, Tinghua Zhang, Tim Ramsay, Greg Knoll
BACKGROUND: Prediction of acute kidney transplant rejection remains imperfect despite several known risk factors. There is an increasing appreciation of the potential importance of the vitamin D pathway in immunological disease and transplantation. OBJECTIVE: The purpose of this study was to determine the association of 25-hydroxyvitamin D and 1,25-dihydroxyvitamin D with acute rejection. DESIGN: This was a prospective cohort study. SETTING: Three academic adult kidney transplant programs in Ontario, Canada, were chosen...
2017: Canadian Journal of Kidney Health and Disease
https://www.readbyqxmd.com/read/28488695/blockade-of-ido-kynurenine-ahr-metabolic-circuitry-abrogates-ifn-%C3%AE-induced-immunologic-dormancy-of-tumor-repopulating-cells
#19
Yuying Liu, Xiaoyu Liang, Xiaonan Yin, Jiadi Lv, Ke Tang, Jingwei Ma, Tiantian Ji, Huafeng Zhang, Wenqian Dong, Xun Jin, Degao Chen, Yanchun Li, Songyan Zhang, Heidi Q Xie, Bin Zhao, Tong Zhao, Jinzhi Lu, Zhuo-Wei Hu, Xuetao Cao, F Xiao-Feng Qin, Bo Huang
Interactions with the immune system may lead tumorigenic cells into dormancy. However, the underlying molecular mechanism is poorly understood. Using a 3D fibrin gel model, we show that IFN-γ induces tumour-repopulating cells (TRCs) to enter dormancy through an indolamine 2,3-dioxygenase 1 (IDO1)-kynurenine (Kyn)-aryl hydrocarbon receptor (AhR)-p27 dependent pathway. Mechanistically, IFN-γ signalling triggers differentiated tumour cell apoptosis via STAT1; however, when IDO1 and AhR are highly expressed as in TRCs, IFN-γ results in IDO1/AhR-dependent p27 induction that prevents STAT1 signalling, thus suppressing the process of cell death and activating the dormancy program...
May 10, 2017: Nature Communications
https://www.readbyqxmd.com/read/28485782/nac-attenuates-adriamycin-induced-nephrotic-syndrome-in-rats-through-regulating-tlr4-signaling-pathway
#20
H Yao, Z-Y Cai, Z-X Sheng
OBJECTIVE: Nephrotic syndrome (NS) is a detrimental renal disease that affects a large population. It is suggested that Toll-like Receptor 4 (TLR4) signaling pathway plays an important role in NS. The aim of this study was to evaluate the immunosuppressive effect of N-acetylcysteine (NAC) in the treatment of NS elucidate its interaction with TLR4 pathway in a rat model. MATERIALS AND METHODS: Rat NS model was constructed using the Bertain method by injecting adriamycin (4...
April 2017: European Review for Medical and Pharmacological Sciences
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