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vaccines and autoimmunity

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https://www.readbyqxmd.com/read/28228759/interleukin-35-producing-cd8%C3%AE-dendritic-cells-acquire-a-tolerogenic-state-and-regulate-t-cell-function
#1
Sergio Haller, Anaïs Duval, Romain Migliorini, Mathias Stevanin, Vanessa Mack, Hans Acha-Orbea
Dendritic cells (DCs) play a central role in shaping immunogenic as well as tolerogenic adaptive immune responses and thereby dictate the outcome of adaptive immunity. Here, we report the generation of a CD8α(+) DC line constitutively secreting the tolerogenic cytokine interleukin (IL)-35. IL-35 secretion led to impaired CD4(+) and CD8(+) T lymphocyte proliferation and interfered with their function in vitro and also in vivo. IL-35 was furthermore found to induce a tolerogenic phenotype on CD8α(+) DCs, characterized by the upregulation of CD11b, downregulation of MHC class II, a reduced costimulatory potential as well as production of the immunomodulatory molecule IL-10...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28228257/t-regulatory-cells-support-plasma-cell-populations-in-the-bone-marrow
#2
Arielle Glatman Zaretsky, Christoph Konradt, Fabien Dépis, James B Wing, Radhika Goenka, Daniela Gomez Atria, Jonathan S Silver, Sunglim Cho, Amaya I Wolf, William J Quinn, Julie B Engiles, Dorothy C Brown, Daniel Beiting, Jan Erikson, David Allman, Michael P Cancro, Shimon Sakaguchi, Li-Fan Lu, Christophe O Benoist, Christopher A Hunter
Long-lived plasma cells (PCs) in the bone marrow (BM) are a critical source of antibodies after infection or vaccination, but questions remain about the factors that control PCs. We found that systemic infection alters the BM, greatly reducing PCs and regulatory T (Treg) cells, a population that contributes to immune privilege in the BM. The use of intravital imaging revealed that BM Treg cells display a distinct behavior characterized by sustained co-localization with PCs and CD11c-YFP(+) cells. Gene expression profiling indicated that BM Treg cells express high levels of Treg effector molecules, and CTLA-4 deletion in these cells resulted in elevated PCs...
February 21, 2017: Cell Reports
https://www.readbyqxmd.com/read/28228112/three-case-reports-of-post-immunization-and-post-viral-bullous-pemphigoid-looking-for-the-right-trigger
#3
Luca Baroero, Paola Coppo, Laura Bertolino, Stefano Maccario, Francesco Savino
BACKGROUND: Bullous pemphigoid (BP) is a blistering skin disorder infrequent in infancy and rarely reported in medical literature. CASE PRESENTATION: Here we describe three cases of BP which were referred to our department in the last 15 years. Two of them developed an eruption of bullous lesions just a few days after vaccination for diphtheria, tetanus, pertussis, poliomyelitis, hepatitis B and Haemophilus influenzae B. The third patient developed the same blistering lesions shortly after herpetic stomatitis...
February 23, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28222511/evaluation-of-a-dna-a%C3%AE-42-vaccine-in-aged-nzw-rabbits-antibody-kinetics-and-immune-profile-after-intradermal-immunization-with-full-length-dna-a%C3%AE-42-trimer
#4
Doris Lambracht-Washington, Min Fu, Mary Wight-Carter, Matthew Riegel, Roger N Rosenberg
A pathological hallmark of Alzheimer's disease (AD) are amyloid plaques in the brain consisting of aggregated amyloid-β 42 peptide (Aβ42) derived from cellular amyloid-β protein precursor (AβPP). Based on successful experiments in mouse AD models, active immunization with Aβ42 peptide and passive immunizations with anti-Aβ42 antibodies were started in clinical trials. Active Aβ42 peptide immunization in humans had led to an inflammatory autoimmune response, and the trial was stopped. Passive immunizations had shown some effects in slowing AD pathology...
February 7, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28205558/plant-based-vaccines-for-oral-delivery-of-type-1-diabetes-related-autoantigens-evaluating-oral-tolerance-mechanisms-and-disease-prevention-in-nod-mice
#5
Amanda L Posgai, Clive H Wasserfall, Kwang-Chul Kwon, Henry Daniell, Desmond A Schatz, Mark A Atkinson
Autoantigen-specific immunological tolerance represents a central objective for prevention of type 1 diabetes (T1D). Previous studies demonstrated mucosal antigen administration results in expansion of Foxp3(+) and LAP(+) regulatory T cells (Tregs), suggesting oral delivery of self-antigens might represent an effective means for modulating autoimmune disease. Early preclinical experiments using the non-obese diabetic (NOD) mouse model reported mucosal administration of T1D-related autoantigens [proinsulin or glutamic acid decarboxylase 65 (GAD)] delayed T1D onset, but published data are conflicting regarding dose, treatment duration, requirement for combinatorial agents, and extent of efficacy...
February 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28202760/restriction-of-hcmv-replication-by-isg15-a-host-effector-regulated-by-cgas-sting-dsdna-sensing
#6
Christopher Bianco, Ian Mohr
Accumulation of the interferon-stimulated gene (ISG) 15 protein product, which is reversibly conjugated to numerous polypeptide targets, impacts the proteome and physiology of uninfected and infected cells. While many viruses, including human cytomegalovirus (HCMV) blunt host antiviral defenses by limiting ISG expression, the overall abundance of ISG15 monomer and protein conjugates rises in HCMV-infected cells. However, the molecular signals underlying ISG15 accumulation and whether the ISG15 polypeptide itself influences HCMV infection biology remain unknown...
February 15, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28194913/vaccination-against-t-cell-epitopes-of-native-apob100-reduces-vascular-inflammation-and-disease-in-a-humanized-mouse-model-of-atherosclerosis
#7
A Gisterå, A Hermansson, D Strodthoff, M L Klement, U Hedin, G N Fredrikson, J Nilsson, G K Hansson, D F J Ketelhuth
BACKGROUND AND OBJECTIVES: The T-cell response to low-density lipoprotein (LDL) in the vessel wall plays a critical role in atherosclerotic plaque formation and stability. In this study, we used a new translational approach to investigate epitopes from human apolipoprotein B100 (ApoB100), the protein component of LDL, which triggers T-cell activation. We also evaluated the potential of two selected native ApoB100 epitopes to modulate atherosclerosis in human ApoB100-transgenic Ldlr(-/-) (HuBL) mice...
February 13, 2017: Journal of Internal Medicine
https://www.readbyqxmd.com/read/28190705/risk-of-autoimmune-diseases-and-human-papilloma-virus-hpv-vaccines-six-years-of-case-referent-surveillance
#8
Lamiae Grimaldi-Bensouda, Michel Rossignol, Isabelle Koné-Paut, Alain Krivitzky, Christine Lebrun-Frenay, Johanna Clet, David Brassat, Caroline Papeix, Marc Nicolino, Pierre-Yves Benhamou, Olivier Fain, Nathalie Costedoat-Chalumeau, Marie-France Courcoux, Jean-François Viallard, Bertrand Godeau, Thomas Papo, Patrick Vermersch, Isabelle Bourgault-Villada, Gerard Breart, Lucien Abenhaim
BACKGROUND: Safety of HPV vaccines is still in question due to reports of autoimmune diseases (ADs) following HPV immunization. OBJECTIVES: To assess the risk of ADs associated with HPV vaccination of female adolescents/young adults in France. METHODS: Systematic prospective case-referent study conducted to assess the risks associated with real-life use of HPV vaccines. Cases were female 11-25 years old with incident ADs [central demyelination/multiple sclerosis (CD/MS), connective tissue disease (CTD), Guillain-Barré syndrome (GBS), type-1 diabetes (T1D), autoimmune thyroiditis (AT), and idiopathic thrombocytopenic purpura (ITP)]...
February 9, 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/28188715/-multiple-sclerosis-current-immunological-aspects
#9
Carlos Cuevas-García
Multiple sclerosis is the most common inflammatory, chronic and degenerative condition of the central nervous system, and represents the first cause of disability in young adults. In Mexico, 11 to 20 out of every 100 000 people suffer from this disease. The causes of multiple sclerosis remain unknown, but several theories have been proposed: the interaction of environmental factors, viral infectious factors and genetic and immune susceptibility of each individual patient, which induce an autoimmune response and promote neuronal/axonal degeneration...
January 2017: Revista Alergia Mexico: Organo Oficial de la Sociedad Mexicana de Alergia e Inmunología, A.C
https://www.readbyqxmd.com/read/28173739/trigger-factors-of-cutaneous-lupus-erythematosus-a-review-of-current-literature
#10
J Szczęch, D Samotij, V P Werth, A Reich
It is currently believed that autoimmune conditions are triggered and aggravated by a variety of environmental factors such as cigarette smoking, infections, ultraviolet light or chemicals, as well as certain medications and vaccines in genetically susceptible individuals. Recent scientific data have suggested a relevant role of these factors not only in systemic lupus erythematosus, but also in cutaneous lupus erythematosus (CLE). A variety of environmental factors have been proposed as initiators and exacerbators of this disease...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28167275/single-amino-acid-fingerprinting-of-the-human-antibody-repertoire-with-high-density-peptide-arrays
#11
Laura K Weber, Andrea Palermo, Jonas Kügler, Olivier Armant, Awale Isse, Simone Rentschler, Thomas Jaenisch, Jürgen Hubbuch, Stefan Dübel, Alexander Nesterov-Mueller, Frank Breitling, Felix F Loeffler
The antibody species that patrol in a patient's blood are an invaluable part of the immune system. While most of them shield us from life-threatening infections, some of them do harm in autoimmune diseases. If we knew exactly all the antigens that elicited all the antibody species within a group of patients, we could learn which ones correlate with immune protection, are irrelevant, or do harm. Here, we demonstrate an approach to this question: First, we use a plethora of phage-displayed peptides to identify many different serum antibody binding peptides...
February 3, 2017: Journal of Immunological Methods
https://www.readbyqxmd.com/read/28164110/narcolepsy-and-influenza-vaccination-induced-autoimmunity
#12
COMMENT
S Sohail Ahmed, Lawrence Steinman
No abstract text is available yet for this article.
January 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28161459/peptide-microarray-based-characterization-of-antibody-responses-to-host-proteins-after-bacille-calmette-gu%C3%A3-rin-vaccination
#13
REVIEW
Davide Valentini, Martin Rao, Lalit Rane, Sayma Rahman, Rebecca Axelsson-Robertson, Rainer Heuchel, Matthias Löhr, Daniel Hoft, Susanna Brighenti, Alimuddin Zumla, Markus Maeurer
BACKGROUND: Bacille Calmette-Guérin (BCG) is the world's most widely distributed vaccine, used against tuberculosis (TB), in cancer immunotherapy, and in autoimmune diseases due to its immunomodulatory properties. To date, the effect of BCG vaccination on antibody responses to host proteins has not been reported. High-content peptide microarrays (HCPM) offer a unique opportunity to gauge specific humoral immune responses. METHODS: The sera of BCG-vaccinated healthy adults were tested on a human HCPM platform (4953 randomly selected epitopes of human proteins) to detect specific immunoglobulin gamma (IgG) responses...
February 2, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28154539/temporal-association-of-certain-neuropsychiatric-disorders-following-vaccination-of-children-and-adolescents-a-pilot-case-control-study
#14
Douglas L Leslie, Robert A Kobre, Brian J Richmand, Selin Aktan Guloksuz, James F Leckman
BACKGROUND: Although the association of the measles, mumps, and rubella vaccine with autism spectrum disorder has been convincingly disproven, the onset of certain brain-related autoimmune and inflammatory disorders has been found to be temporally associated with the antecedent administration of various vaccines. This study examines whether antecedent vaccinations are associated with increased incidence of obsessive-compulsive disorder (OCD), anorexia nervosa (AN), anxiety disorder, chronic tic disorder, attention deficit hyperactivity disorder, major depressive disorder, and bipolar disorder in a national sample of privately insured children...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/28140462/physiopathology-and-management-of-gluten-induced-celiac-disease
#15
REVIEW
Jitendra Kumar, Manoj Kumar, Rajesh Pandey, Nar Singh Chauhan
Proline- and glutamine-rich gluten proteins are one of the major constituents of cereal dietary proteins, which are largely resistant to complete cleavage by the human gastrointestinal (GI) digestive enzymes. Partial digestion of gluten generates approximately 35 amino acids (aa) immunomodulatory peptides which activate T-cell-mediated immune system, followed by immunological inflammation of mucosa leading to the onset of celiac disease (CD). CD is an autoimmune disease associated with HLA-DQ2/DQ8 polymorphism and dysbiosis of gut microbiota...
January 31, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28128471/lack-of-fc-gamma-receptor-iiia-promotes-rather-than-suppresses-humoral-and-cellular-immune-responses-after-mucosal-or-parenteral-immunization-with-antigen-and-adjuvants
#16
Jia-Bin Sun, Jan Holmgren, Mark S Cragg, Zou Xiang
The Fcγ receptor IIIA (FcγRIIIA) has traditionally been known as a positive regulator of immune responses. Consistent with this, mice deficient in FcγRIIIA are protected from various inflammation-associated pathologies including several autoimmune diseases. In contrast to this accepted dogma, we show here that mice lacking FcγRIIIA developed increased rather than reduced both humoral and cellular immune responses to mucosal (sublingual) immunization with ovalbumin (OVA) given together with the strong mucosal adjuvant cholera toxin as well as to parenteral (subcutaneous) immunization with OVA in complete Freund's adjuvant...
January 27, 2017: Scandinavian Journal of Immunology
https://www.readbyqxmd.com/read/28111220/prophylactic-active-immunization-with-a-novel-epitope-vaccine-improves-cognitive-ability-by-decreasing-amyloid-plaques-and-neuroinflammation-in-app-ps1-transgenic-mice
#17
Li Ding, Yuan Meng, Hui-Yi Zhang, Wen-Chao Yin, Yi Yan, Yun-Peng Cao
Both amyloid-β peptide (Aβ) deposition and neuroinflammation are considered to be early events that play pivotal roles in Alzheimer's disease (AD) pathogenesis and its associated cognitive impairment. Prophylactic anti-Aβ active immunotherapy is a promising therapeutic strategy for AD, if the Aβ-specific autoimmune responses to self T cell epitopes of Aβ can be avoided. This can be achieved by the use of antigen, which contains the B cell epitope of Aβ and excludes the Aβ-specific T cell epitope. In this study, we developed a novel peptide epitope vaccine, Aβ3-10-KLH, by coupling the B cell epitope Aβ3-10 to keyhole limpet hemocyanin (KLH) as the carrier protein, and subcutaneously injected it into 2...
January 19, 2017: Neuroscience Research
https://www.readbyqxmd.com/read/28108192/epidemiology-and-pathophysiology-of-childhood-narcolepsy
#18
REVIEW
Thomas J Dye, Neepa Gurbani, Narong Simakajornboon
It is now recognized that there are two types of narcolepsy. Narcolepsy type I or Narcolepsy with cataplexy is caused by the loss of hypocretin or orexin neurons. Narcolepsy type II or narcolepsy without cataplexy has normal hypocretin and the etiology is unknown. Hypocretin is a neuropeptide produced by neurons in the lateral hypothalamus. Both genetic and environmental factors play a crucial role in the pathogenesis of narcolepsy. Most patients with narcolepsy type I and half of patients with narcolepsy type II carry HLA-DQB1*0602...
December 21, 2016: Paediatric Respiratory Reviews
https://www.readbyqxmd.com/read/28107375/narcolepsy-type-1-is-associated-with-a-systemic-increase-and-activation-of-regulatory-t-cells-and-with-a-systemic-activation-of-global-t-cells
#19
Michel Lecendreux, Guillaume Churlaud, Fabien Pitoiset, Armelle Regnault, Tu Anh Tran, Roland Liblau, David Klatzmann, Michelle Rosenzwajg
Narcolepsy is a rare neurologic disorder characterized by excessive daytime sleepiness, cataplexy and disturbed nocturnal sleep patterns. Narcolepsy type 1 (NT1) has been shown to result from a selective loss of hypothalamic hypocretin-secreting neurons with patients typically showing low CSF-hypocretin levels (<110 pg/ml). This specific loss of hypocretin and the strong association with the HLA-DQB1*06:02 allele led to the hypothesis that NT1 could be an immune-mediated pathology. Moreover, susceptibility to NT1 has recently been associated with several pathogens, particularly with influenza A H1N1 virus either through infection or vaccination...
2017: PloS One
https://www.readbyqxmd.com/read/28106787/anti-nmda-receptor-encephalitis-and-vaccination
#20
Hsiuying Wang
Anti-N-methyl-d-aspartate (Anti-NMDA) receptor encephalitis is an acute autoimmune neurological disorder. The cause of this disease is often unknown, and previous studies revealed that it might be caused by a virus, vaccine or tumor. It occurs more often in females than in males. Several cases were reported to be related to vaccination such as the H1N1 vaccine and tetanus/diphtheria/pertussis and polio vaccines. In this study, we reported an anti-NMDA receptor encephalitis case that may be caused by Japanese encephalitis vaccination...
January 18, 2017: International Journal of Molecular Sciences
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