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Immunological tolerance

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https://www.readbyqxmd.com/read/28812547/lung-epithelial-cells-therapeutically-inducible-effectors-of-antimicrobial-defense
#1
REVIEW
M M Leiva-Juárez, J K Kolls, S E Evans
Lung epithelial cells are increasingly recognized to be active effectors of microbial defense, contributing to both innate and adaptive immune function in the lower respiratory tract. As immune sentinels, lung epithelial cells detect diverse pathogens through an ample repertoire of membrane-bound, endosomal, and cytosolic pattern-recognition receptors (PRRs). The highly plastic epithelial barrier responds to detected threats via modulation of paracellular flux, intercellular communications, mucin production, and periciliary fluid composition...
August 16, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/28804700/abridged-version-of-the-awmf-guideline-for-the-medical-clinical-diagnostics-of-indoor-mould-exposure-s2k-guideline-of-the-german-society-of-hygiene-environmental-medicine-and-preventive-medicine-ghup-in-collaboration-with-the-german-association-of-allergists
#2
Gerhard A Wiesmüller, Birger Heinzow, Ute Aurbach, Karl-Christian Bergmann, Albrecht Bufe, Walter Buzina, Oliver A Cornely, Steffen Engelhart, Guido Fischer, Thomas Gabrio, Werner Heinz, Caroline E W Herr, Jörg Kleine-Tebbe, Ludger Klimek, Martin Köberle, Herbert Lichtnecker, Thomas Lob-Corzilius, Rolf Merget, Norbert Mülleneisen, Dennis Nowak, Uta Rabe, Monika Raulf, Hans Peter Seidl, Jens-Oliver Steiß, Regine Szewszyk, Peter Thomas, Kerttu Valtanen, Julia Hurraß
This article is an abridged version of the AWMF mould guideline "Medical clinical diagnostics of indoor mould exposure" presented in April 2016 by the German Society of Hygiene, Environmental Medicine and Preventive Medicine (Gesellschaft für Hygiene, Umweltmedizin und Präventivmedizin, GHUP), in collaboration with the above-mentioned scientific medical societies, German and Austrian societies, medical associations and experts. Indoor mould growth is a potential health risk, even if a quantitative and/or causal relationship between the occurrence of individual mould species and health problems has yet to be established...
2017: Allergo Journal International
https://www.readbyqxmd.com/read/28804486/first-association-of-interleukin-12-receptor-beta-1-deficiency-with-sj%C3%A3-gren-s-syndrome
#3
Georgios Sogkas, Faranaz Atschekzei, Vivien Schacht, Christian von Falck, Alexandra Jablonka, Roland Jacobs, Matthias Stoll, Torsten Witte, Reinhold E Schmidt
INTRODUCTION: Interleukin 12 receptor beta 1 (IL12Rβ1) deficiency is a primary immunodeficiency resulting mainly in susceptibility to opportunistic infection by non-tuberculous, environmental mycobacteria and severe infection caused by Salmonella spp. Till now, less than 300 patients with IL12Rβ1 deficiency have been reported. Among them, only three have been described to develop autoimmunity. CASE PRESENTATION: We present the case of a 50-year-old male with IL12Rβ1 deficiency due to compound heterozygosity [c...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28803660/multiple-sclerosis-skin-induced-antigen-specific-immune-tolerance
#4
REVIEW
Paula Wildner, Krzysztof W Selmaj
Multiple sclerosis (MS) is a highly prevalent demyelinating disorder, presumed to be driven by an autoimmune response toward the central nervous system (CNS) components. All currently available treatments modulate the immune system globally and besides the reduction of disease activity, they may also impose considerable disturbances on the immune protective mechanisms. Thus, induction of antigen-specific immune tolerance remains the ultimate goal of MS therapy. Such approach carries promising therapeutic perspectives and, above all, a desirable safety profile...
August 2, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28802766/a-phase-i-trial-of-intraperitoneal-gen-1-an-il-12-plasmid-formulated-with-peg-pei-cholesterol-lipopolymer-administered-with-pegylated-liposomal-doxorubicin-in-patients-with-recurrent-or-persistent-epithelial-ovarian-fallopian-tube-or-primary-peritoneal-cancers
#5
REVIEW
Premal H Thaker, William E Brady, Heather A Lankes, Kunle Odunsi, William H Bradley, Kathleen N Moore, Carolyn Y Muller, Khursheed Anwer, Russell J Schilder, Ronald D Alvarez, Paula M Fracasso
OBJECTIVE: The study's purpose was to assess safety and efficacy of escalating doses of weekly GEN-1 with pegylated liposomal doxorubicin (PLD) in patients with recurrent or persistent epithelial ovarian, fallopian tube or primary peritoneal cancers (EOC). METHODS: Patients had persistent or recurrent platinum-resistant EOC. The trial was a standard 3+3 phase I dose escalation design with patients receiving intravenous PLD 40mg/m(2) (dose level 1 and 2) or 50mg/m(2) (dose level 3) every 28days and intraperitoneal GEN-1 at 24mg/m(2) (dose level 1) or 36mg/m(2) (dose level 2 and 3) on days 1, 8, 15, and 22 of a 28day cycle...
August 9, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28802495/the-immunology-of-melanoma
#6
REVIEW
Jennifer S Ko
The relatively high DNA mutational burden in melanoma allows for the creation of potentially "foreign," immune-stimulating neoantigens, and leads to its exceptional immunogenicity. Brisk tumor-infiltrating lymphocytes, a marker of immune editing, confer improved overall survival in melanoma, possibly due to reduced sentinel lymph node spread. Meanwhile, T-cell-stimulating drugs, so-called T-cell checkpoint inhibitors, which reverse peripheral tolerance-dependent tumor escape, have demonstrated unparalleled clinical success in metastatic melanoma...
September 2017: Clinics in Laboratory Medicine
https://www.readbyqxmd.com/read/28798999/influence-of-immunostimulant-polysaccharides-nucleic-acids-and-bacillus-strains-on-the-innate-immune-and-acute-stress-response-in-turbots-scophthalmus-maximus-fed-soy-bean-and-wheat-based-diets
#7
V I Fuchs, J Schmidt, M J Slater, B H Buck, D Steinhagen
Immunostimulants are widely applied in aquaculture practice and may have beneficial effects on the immune system and physical functions allowing higher tolerance to stress. In the current study, the impact of four (i-iv) dietary active ingredients on the immune and stress response of turbot was examined in two experiments (I and II). A basal low fish meal (FM; 32%) diet was formulated and supplemented with (i) yeast β-glucan and mannan oligosaccharide (GM), (ii) alginic acid (AC), (iii) yeast nucleotides and RNA (NR), or (iv) Bacillus strains (BS)...
August 10, 2017: Fish Physiology and Biochemistry
https://www.readbyqxmd.com/read/28797906/amitraz-and-its-metabolite-modulate-honey-bee-cardiac-function-and-tolerance-to-viral-infection
#8
Scott T O'Neal, Carlyle C Brewster, Jeffrey R Bloomquist, Troy D Anderson
The health and survival of managed honey bee (Apis mellifera) colonies are affected by multiple factors, one of the most important being the interaction between viral pathogens and infestations of the ectoparasitic mite Varroa destructor. Currently, the only effective strategy available for mitigating the impact of viral infections is the chemical control of mite populations. Unfortunately, the use of in-hive acaricides comes at a price, as they can produce sublethal effects that are difficult to quantify, but may ultimately be as damaging as the mites they are used to treat...
August 7, 2017: Journal of Invertebrate Pathology
https://www.readbyqxmd.com/read/28792480/the-role-of-nutritional-aspects-in-food-allergy-prevention-and-management
#9
REVIEW
Alessandra Mazzocchi, Carina Venter, Kate Maslin, Carlo Agostoni
The prevalence of food allergy in childhood appears to be increasing in both developed and transitional countries. The aim of this paper is to review and summarise key findings in the prevention and management of food allergy, focusing on the role of dietary components and nutritional habits in the development and optimal functioning of the immune system. Essential fatty acids, zinc and vitamin D are likely to enhance the anti-inflammatory and antioxidative barrier and promote immunologic tolerance. Additionally, nutritional components such as pre- and probiotics represent a novel research approach in the attempt to induce a tolerogenic immune environment...
August 9, 2017: Nutrients
https://www.readbyqxmd.com/read/28774470/history-and-mechanisms-of-oral-tolerance
#10
REVIEW
Rafael M Rezende, Howard L Weiner
Since its first description by Wells and Osbourne in 1911, oral tolerance has intrigued researchers due to its potential for therapeutic applications. Oral tolerance can be defined as an inhibition of specific immune responsiveness to subsequent parenteral injections of proteins to which an individual or animal has been previously exposed via the oral route. Tolerance induction to commensal bacteria and dietary proteins represents the major immunological event taking place in the gut in physiological conditions...
July 31, 2017: Seminars in Immunology
https://www.readbyqxmd.com/read/28772271/remission-phase-in-paediatric-type-1-diabetes-new-understanding-and-emerging-biomarkers
#11
Mireia Fonolleda, Marta Murillo, Federico Vázquez, Joan Bel, Marta Vives-Pi
Type 1 diabetes (T1D) is a metabolic disease of unknown aetiology that results from the autoimmune destruction of the β-cells. Clinical onset with classic hyperglycaemic symptoms occurs much more frequently in children and young adults, when less than 30% of β-cells remain. Exogenous insulin administration is the only treatment for patients. However, due to glucose dysregulation, severe complications develop gradually. Recently, an increase in T1D incidence has been reported worldwide, especially in children...
August 3, 2017: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/28770318/regulatory-t-cell-dysfunction-in-type-1-diabetes-what-s-broken-and-how-can-we-fix-it
#12
REVIEW
Caroline M Hull, Mark Peakman, Timothy I M Tree
Type 1 diabetes is an autoimmune disease characterised by the destruction of insulin producing beta cells in the pancreas. Whilst it remains unclear what the original triggering factors for this destruction are, observations from the natural history of human type 1 diabetes, including incidence rates in twins, suggest that the disease results from a combination of genetic and environmental factors. Whilst many different immune cells have been implicated, including members of the innate and adaptive immune systems, a view has emerged over the past 10 years that beta cell damage is mediated by the combined actions of CD4(+) and CD8(+) T cells with specificity for islet autoantigens...
August 2, 2017: Diabetologia
https://www.readbyqxmd.com/read/28766556/antigen-specific-regulatory-t-cell-responses-to-intestinal-microbiota
#13
REVIEW
E V Russler-Germain, S Rengarajan, C-S Hsieh
The mammalian gastrointestinal tract can harbor both beneficial commensal bacteria important for host health, but also pathogenic bacteria capable of intestinal damage. It is therefore important that the host immune system mount the appropriate immune response to these divergent groups of bacteria-promoting tolerance in response to commensal bacteria and sterilizing immunity in response to pathogenic bacteria. Failure to induce tolerance to commensal bacteria may underlie immune-mediated diseases such as human inflammatory bowel disease...
August 2, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/28758182/which-is-better-stainless-steel-or-titanium-alloy
#14
Sibel Akyol, Hakan Bozkus, Suzan Adin Cinar, Mehmet Murat Hanci
AIM: To investigate immunologic reactions after implantation of stainless steel (SS) alloy and titanium (Ti) alloy in a rat model. Macrophage and cytokine responses have been reported after the in vivo and in vitro application of different biomaterials. MATERIAL AND METHODS: Wistar albino rats after an exploration of the thoracolumbar paravertebral muscle tissue of the subjects, group I underwent a sham surgery, and groups II and III were implanted Ti alloy and SS alloy rods respectively...
June 14, 2017: Turkish Neurosurgery
https://www.readbyqxmd.com/read/28757143/methods-in-allergy-immunology-food-challenges
#15
EDITORIAL
Barbara K Ballmer-Weber, Kirsten Beyer
Since there is no in vitro test, which can accurately predict the clinical relevance of a sensitization to food, the oral food challenge still remains the most reliable procedure to confirm or exclude food allergy and to assess the development of tolerance in children with potentially transient food allergies such as to cow's milk, hen's egg, wheat or soy. Although in the last few years component-resolved diagnostic has improved the food allergy diagnostics, especially in peanut and tree nut allergy, the majority of patients still need to undergo oral food challenge...
July 27, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28754821/the-role-of-the-tumour-microenvironment-in-immune-therapy
#16
Stephan Gasser, Lina H K Lim, Florence S G Cheung
Recent success in immunomodulating strategies in lung cancer and melanoma has prompted much enthusiasm in their potential to treat other advanced solid malignancies. However, their applications have shown variable success and are even ineffective against some tumours. The efficiency of immunotherapies relies on an immunogenic tumour microenvironment. The current field of cancer immunology has focused on understanding the interaction of cancer and host immune cells to break the state of immune tolerance and explain how molecular patterns of cytokines and chemokines affect tumour progression...
July 28, 2017: Endocrine-related Cancer
https://www.readbyqxmd.com/read/28754617/infection-by-schistosoma-mansoni-during-pregnancy-effects-on-offspring-immunity
#17
REVIEW
Vanessa Ribeiro Figliuolo da Paz, Danielly Sequeira, Alexandre Pyrrho
About 25 million Brazilians live in areas at risk of contracting the disease caused by the trematoda Schistosoma mansoni, the schistosomiasis mansoni. Although the adult parasites inhabit the blood vessels, probably the main element responsible for the pathology of the disease are the eggs, whose deposition in the liver results in formation of granulomas and hypersensitivity mediated by CD4 T cells. In the course of infection, the profile of T helper 1 (Th1) and Th2 cytokines released by immune cells is correlated with the extent of inflammation in the granuloma and with the disease severity...
July 25, 2017: Life Sciences
https://www.readbyqxmd.com/read/28747473/dissecting-the-contributions-of-time-and-microbe-density-to-variation-in-immune-gene-expression
#18
Ann T Tate, Andrea L Graham
Widespread differential expression of immunological genes is a hallmark of the response to infection in almost all surveyed taxa. However, several challenges remain in the attempt to connect differences in gene expression with functional outcomes like parasite killing and host survival. For example, temporal gene expression patterns are not always monotonic (unidirectional slope), yielding results that qualitatively depend on the time point selected for analysis. They may also be correlated to microbe density, confounding the strength of an immune response and resistance to parasites...
July 26, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28742936/benefits-and-limitations-of-belatacept-in-4-hand-transplanted-patients
#19
J Grahammer, A Weissenbacher, B G Zelger, B Zelger, C Boesmueller, M Ninkovic, A Mühlbacher, I Peschel, G Brandacher, D Öfner, S Schneeberger
Belatacept (CTLA4Ig) is an emerging treatment in kidney transplantation. Lack of nephrotoxicity and possibly an inhibitory effect on the development of donor specific antibodies (DSA) make it an interesting agent in hand transplantation. In order to reduce CNI immunosuppression and preserve kidney function, we have added belatacept to the therapeutic regimen of 4 hand transplanted patients at month 4, at 6, 9, and 13 years after hand/forearm transplantation. Patients received 5mg/kg belatacept every 2 weeks, the dosing interval was extended to 4 weeks after 5 applications...
July 25, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28742226/documentation-of-penicillin-adverse-drug-reactions-in-electronic-health-records-inconsistent-use-of-allergy-and-intolerance-labels
#20
Joshua M Inglis, Gillian E Caughey, William Smith, Sepehr Shakib
BACKGROUND: The majority of patients with penicillin allergy labels tolerate penicillins. Inappropriate avoidance of penicillin is associated with increased hospitalisation, infections and healthcare costs. AIMS: To examine the documentation of penicillin adverse drug reactions (ADR) in a large-scale hospital-based electronic health record. METHODS: Penicillin ADRs were extracted from 96,708 patient records in the Enterprise Patient Administration System in South Australia...
July 25, 2017: Internal Medicine Journal
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