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CSF and autoimmune disease

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https://www.readbyqxmd.com/read/28316374/the-role-of-il-17-and-related-cytokines-in-inflammatory-autoimmune-diseases
#1
REVIEW
Taku Kuwabara, Fumio Ishikawa, Motonari Kondo, Terutaka Kakiuchi
Interleukin-17 (IL-17) induces the production of granulocyte colony-stimulating factor (G-CSF) and chemokines such as CXCL1 and CXCL2 and is a cytokine that acts as an inflammation mediator. During infection, IL-17 is needed to eliminate extracellular bacteria and fungi, by inducing antimicrobial peptides such as defensin. This cytokine also plays an important role in chronic inflammation that occurs during the pathogenesis of autoimmune diseases and allergies such as human rheumatoid arthritis (RA) for which a mouse model of collagen-induced arthritis (CIA) is available...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28288184/cd73-is-expressed-by-inflammatory-th17-cells-in-experimental-autoimmune-encephalomyelitis-but-does-not-limit-differentiation-or-pathogenesis
#2
Gerard Hernandez-Mir, Mandy J McGeachy
CD73 works together with CD39 to convert extracellular ATP to immunoregulatory adenosine, thus inhibiting inflammation. TGFβ-mediated CD73 expression on 'regulatory' Th17 cells limits their ability to eradicate tumors, similar to the immunosuppressive mechanism described for CD73 on Tregs. However, CD73 is also expressed on Th17 cells thought to be inflammatory in Crohn's disease. CD73 has previously been reported to contribute to inflammation in the central nervous system (CNS). In experimental autoimmune encephalomyelitis (EAE), we found that inflammatory cytokine-producing Th17 cells showed increased CD73 expression as disease progressed...
2017: PloS One
https://www.readbyqxmd.com/read/28275140/antibody-independent-function-of-human-b-cells-contributes-to-antifungal-t-cell-responses
#3
Rui Li, Ayman Rezk, Hulun Li, Jennifer L Gommerman, Alexandre Prat, Amit Bar-Or
Fungal infections (e.g., Candida albicans) can manifest as serious medical illnesses, especially in the elderly and immune-compromised hosts. T cells are important for Candida control. Whether and how B cells are involved in antifungal immunity has been less clear. Although patients with agammaglobulinemia exhibit normal antifungal immunity, increased fungal infections are reported following B cell-depleting therapy, together pointing to Ab-independent roles of B cells in controlling such infections. To test how human B cells may contribute to fungal-associated human T cell responses, we developed a novel Ag-specific human T cell/B cell in vitro coculture system and found that human B cells could induce C...
March 8, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28273770/transglutaminase-6-is-an-autoantigen-in-progressive-multiple-sclerosis-and-is-upregulated-in-reactive-astrocytes
#4
Massimiliano Cristofanilli, Daniel Gratch, Benjamin Pagano, Kelsey McDermott, Jessie Huang, Jeffrey Jian, Deneb Bates, Saud A Sadiq
BACKGROUND: Transglutaminase-6 (TGM6), a member of the transglutaminase enzyme family, is found predominantly in central nervous system (CNS) neurons under physiological conditions. It has been proposed as an autoimmune target in cerebral palsy, gluten-sensitive cerebellar ataxia, and schizophrenia. OBJECTIVE: To investigate TGM6 involvement in multiple sclerosis (MS). METHODS: Antibody levels against TGM6 (TGM6-IgG) were measured in the cerebrospinal fluid (CSF) of 62 primary progressive multiple sclerosis (PPMS), 85 secondary progressive multiple sclerosis (SPMS), and 50 relapsing-remitting multiple sclerosis (RRMS) patients and 51 controls...
December 1, 2016: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28259863/-review-of-the-psychiatric-aspects-of-anti-nmda-n-methyl-d-aspartic-acid-receptor-encephalitis-case-report-and-our-plans-for-a-future-study
#5
Levente Herman, Ildiko Reka Zsigmond, Laszlo Peter, Janos M Rethelyi
Anti-NMDAR (N-methyl-D-aspartic acid receptor) encephalitis, first described in 2007, is a rare, autoimmune limbic encephalitis. In half of the cases anti-NMDAR antibodies are paraneoplastic manifestations of an underlying tumor (mostly ovarian teratoma). In the early stage of the disease psychiatric symptoms are prominent, therefore 60-70% of the patients are first treated in a psychiatric department. In most of the cases, typical neurological symptoms appear later. Besides the clinical picture and typical symptoms, verifying presence of IgG antibodies in the serum or CSF is necessary to set up the diagnosis...
December 2016: Neuropsychopharmacologia Hungarica
https://www.readbyqxmd.com/read/28258292/immunoregulatory-properties-of-the-cytokine-il-34
#6
REVIEW
Carole Guillonneau, Séverine Bézie, Ignacio Anegon
Interleukin-34 is a cytokine with only partially understood functions, described for the first time in 2008. Although IL-34 shares very little homology with CSF-1 (CSF1, M-CSF), they share a common receptor CSF-1R (CSF-1R) and IL-34 has also two distinct receptors (PTP-ζ) and CD138 (syndecan-1). To make the situation more complex, IL-34 has also been shown as pairing with CSF-1 to form a heterodimer. Until now, studies have demonstrated that this cytokine is released by some tissues that differ to those where CSF-1 is expressed and is involved in the differentiation and survival of macrophages, monocytes, and dendritic cells in response to inflammation...
March 3, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28243612/trigemino-autonomic-headache-and-horner-syndrome-as-a-first-sign-of-granulomatous-hypophysitis
#7
Jeremias Motte, Ilonka Kreitschmann-Andermahr, Anna Lena Fisse, Christian Börnke, Christoph Schroeder, Kalliopi Pitarokoili, Oliver Müller, Carsten Lukas, Johannes van de Nes, Rolf Buslei, Ralf Gold, Ilya Ayzenberg
OBJECTIVE: To report a rare case of incipient granulomatous hypophysitis presenting by atypical trigemino-autonomic cephalalgia (TAC) and Horner syndrome. METHODS: The patient was investigated with repeated brain MRI, CSF examination, thoracic CT, Doppler and duplex ultrasound of the cerebral arteries, and extensive serologic screening for endocrine and autoimmune markers. Written informed consent was obtained from the patient for access to clinical files for research purposes and for publication...
May 2017: Neurology® Neuroimmunology & Neuroinflammation
https://www.readbyqxmd.com/read/28239379/estrogen-receptor-dependent-regulation-of-dendritic-cell-development-and-function
#8
REVIEW
Sophie Laffont, Cyril Seillet, Jean-Charles Guéry
Autoimmunity, infectious diseases and cancer affect women and men differently. Because they tend to develop more vigorous adaptive immune responses than men, women are less susceptible to some infectious diseases but also at higher risk of autoimmunity. The regulation of immune responses by sex-dependent factors probably involves several non-redundant mechanisms. A privileged area of study, however, concerns the role of sex steroid hormones in the biology of innate immune cells, especially dendritic cells (DCs)...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28228281/dysregulation-of-the-cytokine-gm-csf-induces-spontaneous-phagocyte-invasion-and-immunopathology-in-the-central-nervous-system
#9
Sabine Spath, Juliana Komuczki, Mario Hermann, Pawel Pelczar, Florian Mair, Bettina Schreiner, Burkhard Becher
Chronic inflammatory diseases are influenced by dysregulation of cytokines. Among them, granulocyte macrophage colony stimulating factor (GM-CSF) is crucial for the pathogenic function of T cells in preclinical models of autoimmunity. To study the impact of dysregulated GM-CSF expression in vivo, we generated a transgenic mouse line allowing the induction of GM-CSF expression in mature, peripheral helper T (Th) cells. Antigen-independent GM-CSF release led to the invasion of inflammatory myeloid cells into the central nervous system (CNS), which was accompanied by the spontaneous development of severe neurological deficits...
February 21, 2017: Immunity
https://www.readbyqxmd.com/read/28228272/commanding-cns-invasion-gm-csf
#10
Junjie Zhao, Lillian Sun, Xiaoxia Li
Granulocyte-macrophage colony-stimulating factor (GM-CSF or Csf-2) is a pro-inflammatory mediator implicated in the pathogenesis of various autoimmune diseases. In this issue of Immunity, Spath et al. (2017) show that the dysregulated production of GM-CSF rather than IL-17 induces spontaneous immunopathology in a mouse model of CNS inflammation.
February 21, 2017: Immunity
https://www.readbyqxmd.com/read/28220120/neutrophil-extracellular-traps-and-its-implications-in-inflammation-an-overview
#11
REVIEW
Vidal Delgado-Rizo, Marco A Martínez-Guzmán, Liliana Iñiguez-Gutierrez, Alejandra García-Orozco, Anabell Alvarado-Navarro, Mary Fafutis-Morris
In addition to physical barriers, neutrophils are considered a part of the first line of immune defense. They can be found in the bloodstream, with a lifespan of 6-8 h, and in tissue, where they can last up to 7 days. The mechanisms that neutrophils utilize for host defense are phagocytosis, degranulation, cytokine production, and, the most recently described, neutrophil extracellular trap (NET) production. NETs are DNA structures released due to chromatin decondensation and spreading, and they thus occupy three to five times the volume of condensed chromatin...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28190865/late-onset-neutropenia-after-rituximab-therapy-in-patients-with-autoimmune-thrombotic-and-hemostatic-disorders-a-single-center-analysis
#12
Yoshiyuki Ogawa, Kunio Yanagisawa, Takuma Ishizaki, Hiroaki Shimizu, Takeki Mitsui, Akitada Ichinose, Yoshihisa Nojima, Hiroshi Handa
Autoimmune thrombotic and hemostatic disorders, caused by autoantibodies against various factors regulating thrombosis and hemostasis, are rare. Rituximab (RTX) is on occasion used for treating these disorders. Late-onset neutropenia (LON) has been described as a side effect of RTX treatment for patients with hemato-oncological and/or rheumatological diseases but not for those with autoimmune thrombotic and hemostatic disorders. Eleven patients with autoimmune thrombotic and hemostatic disorders received RTX in our institution...
2017: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/28179405/diagnostic-accuracy-of-cerebrospinal-fluid-procalcitonin-in-bacterial-meningitis-patients-with-empiric-antibiotic-pretreatment
#13
Wen Li, Xiaolong Sun, Fang Yuan, Qiong Gao, Yue Ma, Yongli Jiang, Xiai Yang, Fang Yang, Lei Ma, Wen Jiang
Accurate diagnosis of bacterial meningitis (BM) relies on cerebrospinal fluid (CSF) Gram stain and bacterial culture, which often present high false-negative rates because of the antibiotic abuse. Thus a novel and reliable diagnostic biomarker is highly required. Procalcitonin (PCT) is well demonstrated to be specifically produced from peripheral tissues by bacterial infection, which makes it a potential candidate. Here, we performed a prospective clinical study comprising a total of 143 patients to investigate the diagnostic value of CSF PCT, serum PCT and other conventional biomarkers for BM...
February 8, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28144129/spotlight-on-mavrilimumab-for-the-treatment-of-rheumatoid-arthritis-evidence-to-date
#14
REVIEW
Chiara Crotti, Maria Gabriella Raimondo, Andrea Becciolini, Martina Biggioggero, Ennio Giulio Favalli
The introduction of biological therapies into clinical practice has dramatically modified the natural history of chronic inflammatory diseases, such as rheumatoid arthritis (RA). RA is a systemic autoimmune disease that causes articular damage and has a great negative impact on patients' quality of life. Despite the wide spectrum of available biological treatments, ~30% of RA patients are still unresponsive, resulting in high disability and increased morbidity and mortality. In the last few decades, the scientific knowledge on RA pathogenesis vastly improved, leading to the identification of new proinflammatory molecules as potential therapeutic targets...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28114998/th17-skewed-immune-response-and-cluster-of-differentiation-40-ligand-expression-in-canine-steroid-responsive-meningitis-arteritis-a-large-animal-model-for-neutrophilic-meningitis
#15
Jessica Freundt-Revilla, Arianna Maiolini, Regina Carlson, Martin Beyerbach, Kai Rentmeister, Thomas Flegel, Andrea Fischer, Andrea Tipold
BACKGROUND: Steroid-responsive meningitis-arteritis (SRMA) is an immune-mediated disorder characterized by neutrophilic pleocytosis and an arteritis particularly in the cervical leptomeninges. Previous studies of the disease have shown increased levels of IL-6 and TGF-ß1 in cerebrospinal fluid (CSF). In the presence of these cytokines, naive CD4+ cells differentiate into Th17 lymphocytes which synthesize interleukin 17 (IL-17). It has been shown that IL-17 plays an active role in autoimmune diseases, it induces and mediates inflammatory responses and has an important role in recruitment of neutrophils...
January 23, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28111734/-a-handl-case-with-papilledema-mimicking-transient-ischemic-attack
#16
İpek Güngör, Arman Çakar, Elif Kocasoy Orhan, Betül Baykan
The syndrome of transient headache and neurologic deficits with cerebrospinal fluid lymphocytosis (HaNDL), is a rare, benign, self-limiting syndrome that is not well known. Cerebrospinal fluid examination (CSF) on clinical suspicion has diagnostic value for this syndrome, which has a rich neurological symptomatology that can mimic many diseases causing mortality and morbidity. Although the ethiopathogenesis of this syndrome is not fully known, autoimmunity is thought to be in the foreground. Described in this article is a HaNDL case that on first clinic presentation appeared to be a transient ischemic attack (TIA) with temporary but recurring neurological findings and normal CSF pressure accompanied by papilledema...
October 2016: Aǧrı: Ağrı (Algoloji) Derneği'nin Yayın Organıdır, the Journal of the Turkish Society of Algology
https://www.readbyqxmd.com/read/28101474/the-laboratory-diagnosis-of-autoimmune-encephalitis
#17
REVIEW
Sang Kun Lee, Soon-Tae Lee
Autoimmune encephalitis is a group of encephalitis syndromes that cause altered mentality, memory decline, or seizures in association with the presence of serum and cerebrospinal fluid (CSF) autoantibodies (auto-Abs). An early diagnosis enables early treatments. The detection of auto-Abs is a confirmatory diagnosis. Tissue-based assay, cell-based immunoassay, and immunoblotting are used to detect various autoantibodies. The CSF test for the presence of antibodies is important because it is more sensitive and reflects disease activity in many autoimmune encephalitis, although antibody tests can be negative even in the presence of autoimmune encephalitis...
December 2016: Journal of Epilepsy Research
https://www.readbyqxmd.com/read/28100738/mir-142-3p-is-a-key-regulator-of-il-1%C3%AE-dependent-synaptopathy-in-neuroinflammation
#18
Georgia Mandolesi, Francesca De Vito, Alessandra Musella, Antonietta Gentile, Silvia Bullitta, Diego Fresegna, Helena Sepman, Claudio Di Sanza, Nabila Haji, Francesco Mori, Fabio Buttari, Emerald Perlas, Maria Teresa Ciotti, Eran Hornstein, Irene Bozzoni, Carlo Presutti, Diego Centonze
MicroRNAs (miRNA) play an important role in post-transcriptional gene regulation of several physiological and pathological processes. In multiple sclerosis (MS), a chronic inflammatory and degenerative disease of the CNS, and in its mouse model, the experimental autoimmune encephalomyelitis (EAE), miRNA dysregulation has been mainly related to immune system dysfunction and white matter (WM) pathology. However, little is known about their role in gray matter pathology. Here, we explored miRNA involvement in the inflammation-driven alterations of synaptic structure and function, collectively known as synaptopathy, a neuropathological process contributing to excitotoxic neurodegeneration in MS/EAE...
January 18, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28065580/fatigue-favors-in-vitro-th1-and-th17-like-cell-expansion-and-reduces-corticoid-sensitivity-in-ms-patients
#19
Hélcio Alvarenga-Filho, Marisa Salles, Joana Hygino, Thais B Ferreira, Priscila M Sacramento, Clarice Monteiro, Claudia Cristina F Vasconcelos, Regina Maria Papais Alvarenga, Cleonice A M Bento
Fatigue is a common "ghost" symptom in patients with multiple sclerosis (MS), an autoimmune disease mediated by T cells that target myelin antigens of the central nervous system. As fatigue has been associated with inflammatory states, its occurrence may negatively impact MS progression. The aim of this study was to evaluate the impact of fatigue on the cytokine profile of patients with relapsing-remitting (RR) MS. For our study, blood were collected from MS patients in clinical remission phase with (n=15) and without (n=15) fatigue...
December 30, 2016: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28062695/the-clonal-invariant-nkt-cell-repertoire-in-people-with-type-1-diabetes-is-characterized-by-a-loss-of-clones-expressing-high-affinity-tcrs
#20
Anna S Tocheva, Salah Mansour, Tristan G H Holt, Samuel Jones, Andrew Chancellor, Joseph P Sanderson, Efrem Eren, Tim J Elliott, Richard I G Holt, Stephan D Gadola
Invariant NKT (iNKT) cells in healthy people express iNKT-TCRs with widely varying affinities for CD1d, suggesting different roles for high- and low-affinity iNKT clones in immune regulation. However, the functional implications of this heterogeneity have not yet been determined. Functionally aberrant iNKT responses have been previously demonstrated in different autoimmune diseases, including human type 1 diabetes, but their relationship to changes in the iNKT clonal repertoire have not been addressed. In this study, we directly compared the clonal iNKT repertoire of people with recent onset type 1 diabetes and age- and gender-matched healthy controls with regard to iNKT-TCR affinity and cytokine production...
January 6, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
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