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Journal of Neuroimmunology

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https://www.readbyqxmd.com/read/28237622/theiler-s-murine-encephalomyelitis-virus-infection-of-sjl-j-and-c57bl-6j-mice-models-for-multiple-sclerosis-and-epilepsy
#1
REVIEW
Ana Beatriz DePaula-Silva, Tyler J Hanak, Jane E Libbey, Robert S Fujinami
Mouse models are great tools to study the mechanisms of disease development. Theiler's murine encephalomyelitis virus is used in two distinct viral infection mouse models to study the human diseases multiple sclerosis (MS) and epilepsy. Intracerebral (i.c.) infection of the SJL/J mouse strain results in persistent viral infection of the central nervous system and a MS-like disease, while i.c. infection of the C57BL/6J mouse strain results in acute seizures and epilepsy. Our understanding of how the immune system contributes to the development of two disparate diseases caused by the same virus is presented...
February 12, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28187911/what-kaplan-meier-survival-curves-don-t-tell-us-about-cns-disease
#2
Katelyn D Miller, Glenn F Rall
Central nervous system consequences of viral infections are rare, but when they do occur, they are often serious and clinically challenging to manage. Our awareness of the perils of neuroinvasion by viruses is growing: the recently appreciated impact of Ebola and Zika virus infections on CNS integrity, decreases in vaccination coverage for potentially neurotropic viruses such as measles, and increased neurovirulence of some influenza strains collectively highlight the need for a better understanding of the viral-neural interaction...
February 3, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28139244/microrna-155-and-viral-induced-neuroinflammation
#3
REVIEW
Laura L Dickey, Timothy M Hanley, Thomas B Huffaker, Andrew G Ramstead, Ryan M O'Connell, Thomas E Lane
MicroRNA (miRNA) regulation of gene expression is becoming an increasingly recognized mechanism by which host immune responses are governed following microbial infection. miRNAs are short, non-coding RNAs that repress translation of target genes, and have been implicated in a number of activities that modulate host immune responses, including the regulation of immune cell proliferation, survival, expansion, differentiation, migration, polarization, and effector function. This review highlights several examples in which mammalian-encoded miR-155 influences immune responses following viral infection of the CNS...
January 24, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28100409/effect-of-thymectomy-for-thymic-atrophy-in-myasthenia-gravis-a-retrospective-study-on-93-patients
#4
Keiichi Nakahara, Shunya Nakane, Makoto Nakajima, Satoshi Yamashita, Takeshi Mori, Yukio Ando
To clarify the efficacy of thymectomy among myasthenia gravis (MG) patients with and without thymoma. We classified MG patients who underwent thymectomy into 3 groups, such as thymic atrophy group, thymic follicular hyperplasia (TFH) group and thymoma group. We compared the data of clinical features and postoperative prognosis at very short-term, short-term, and medium-term. The clinical course of MG patients with atrophic thymus after thymectomy was even better than those of TFH or thymoma, in this retrospective study...
January 12, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28100408/increased-cerebrospinal-fluid-progranulin-correlates-with-interleukin-6-in-the-acute-phase-of-neuromyelitis-optica-spectrum-disorder
#5
Akio Kimura, Masao Takemura, Kuniaki Saito, Ginette Serrero, Nobuaki Yoshikura, Yuichi Hayashi, Takashi Inuzuka
We examined progranulin (PGRN) levels in cerebrospinal fluid (CSF) samples during the acute phase in 15 patients with neuromyelitis optica spectrum disorders (NMOSD) and compared the results with those from 17 patients with multiple sclerosis (MS), 30 patients with other inflammatory neurological diseases (OIND), and 20 non-inflammatory controls (NIC). CSF PGRN levels of NMOSD patients were significantly higher than those of MS patients and NICs. These levels correlated with CSF interleukin-6 levels, CSF cell counts, CSF protein levels, improvements in the Expanded Disability Status Scale score, and affected total spinal cord lesion length in the NMOSD patients...
January 12, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28108025/viral-induced-suppression-of-self-reactive-t-cells-lessons-from-neurotropic-coronavirus-induced-demyelination
#6
REVIEW
Carine Savarin, Cornelia C Bergmann
Genetic and environmental factors, i.e. infections, have been proposed to contribute to disease induction and relapsing events in multiple sclerosis (MS), an autoimmune demyelinating disease of the central nervous system (CNS). While research has mainly focused on virus associated autoimmune activation, less is known about prevention of autoimmunity, especially following resolving infections associated with CNS tissue damage. This review discusses novel insights on control of self-reactive (SR) T cells activated during neurotropic coronavirus-induced demyelination...
January 11, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28087078/donald-h-gilden-m-d
#7
Gregory P Owens, Maria A Nagel, Ravi Mahalingam, Randall J Cohrs
No abstract text is available yet for this article.
January 6, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28065579/roles-of-regulatory-t-cells-and-il-10-in-virus-induced-demyelination
#8
REVIEW
Stanley Perlman, Jingxian Zhao
Neurotropic viruses are important causes of morbidity and mortality in human populations. Some of these viruses preferentially infect oligodendrocytes in the white matter, causing either direct lysis of infected cells, or more commonly myelin damage as a consequence of the host immune response to the virus. Virus-induced demyelination has similarities to the human disease multiple sclerosis. To study this disease process in experimental animals, mice are infected, most commonly, with neurotropic strains of mouse hepatitis virus, a coronavirus or Theiler's murine encephalomyelitis, a picornavirus...
January 4, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28087076/polarization-of-microglia-and-its-role-in-bacterial-sepsis
#9
REVIEW
Monique Michels, Beatriz Sonai, Felipe Dal-Pizzol
Microglial polarization in response to brain inflammatory conditions is a crescent field in neuroscience. However, the effect of systemic inflammation, and specifically sepsis, is a relatively unexplored field that has great interest and relevance. Sepsis has been associated with both early and late harmful events of the central nervous system, suggesting that there is a close link between sepsis and neuroinflammation. During sepsis evolution it is supposed that microglial could exert both neurotoxic and repairing effects depending on the specific microglial phenotype assumed...
January 3, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28077213/inhibition-of-dopamine-receptor-d3-signaling-in-dendritic-cells-increases-antigen-cross-presentation-to-cd8-t-cells-favoring-anti-tumor-immunity
#10
Claudio Figueroa, Felipe Gálvez-Cancino, Cesar Oyarce, Francisco Contreras, Carolina Prado, Catalina Valeria, Sebastián Cruz, Alvaro Lladser, Rodrigo Pacheco
Dendritic cells (DCs) display the unique ability for cross-presenting antigens to CD8(+) T-cells, promoting their differentiation into cytotoxic T-lymphocytes (CTLs), which play a pivotal role in anti-tumor immunity. Emerging evidence points to dopamine receptor D3 (D3R) as a key regulator of immunity. Accordingly, we studied how D3R regulates DCs function in anti-tumor immunity. The results show that D3R-deficiency in DCs enhanced expansion of CTLs in vivo and induced stronger anti-tumor immunity. Co-culture experiments indicated that D3R-inhibition in DCs potentiated antigen cross-presentation and CTLs activation...
January 2, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28065580/fatigue-favors-in-vitro-th1-and-th17-like-cell-expansion-and-reduces-corticoid-sensitivity-in-ms-patients
#11
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/28041664/early-gene-activation-initiates-neuroinflammation-prior-to-vsv-neuroinvasion-impact-on-antiviral-responses-and-sleep
#12
Richard P Ciavarra, Patric Lundberg, Mayumi Machida, Marta A Ambrozewicz, Laurie L Wellman, Kimberly Breving, Christina Steel, Larry D Sanford
Rapid eye movement (REM) sleep is rapidly and persistently suppressed during vesicular stomatitis virus (VSV) encephalitis in C57Bl/6J (B6) mice. REM sleep suppression was associated with a complex global brain chemokine/cytokine response with bimodal kinetics although regionally distinct cytokine profiles were readily identified. Cytokine mRNA was translated either immediately or suppressed until the pathogen was cleared from the CNS. Innate signaling pathway (TLRs, RIG-I) activation occurred rapidly and sequentially prior to VSV neuroinvasion suggesting that antiviral states are quickly established in the CNS in advance of viral pathogen penetration...
December 29, 2016: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28087077/alteration-of-cd39-foxp3-cd4-t-cell-and-cytokine-levels-in-eae-ms-following-anti-cd52-treatment
#13
Anudeep B Pant, Yan Wang, Daniel W Mielcarz, Eli J Kasper, Kiel M Telesford, Megan Mishra, Azizul Haque, Jacqueline Smith, Lloyd H Kasper, Sakhina Begum-Haque
While examining the therapeutic value of anti-CD52 antibody against EAE/MS, we identified a unique subset of CD39+ Tregs in repopulating GALT tissues, a major lymphoid reservoir, which was accompanied by amelioration of disease. Furthermore, anti-CD52 treatment leads to increased expression of BDNF, IL-10, and SMAD3 in the brains of EAE mice. This condition is associated with suppression of IL-17, a critical inflammatory factor in EAE/MS progression. Additionally, we found elevated levels of CD4+CD39+ Tregs in PBMCs of RRMS patients treated with humanized anti-CD52 mAb...
December 21, 2016: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28043652/lymphocyte-subsets-as-biomarkers-of-therapeutic-response-in-fingolimod-treated-relapsing-multiple-sclerosis-patients
#14
D Paolicelli, A Manni, M D'Onghia, V Direnzo, P Iaffaldano, S Zoccolella, V Di Lecce, C Tortorella, G Specchia, M Trojano
We investigated, lymphocyte count (LC) and lymphocyte subpopulations (LS) in a real life setting of Fingolimod (FTY) treated Relapsing MS (RMS) patients. Peripheral blood counts with LS, relapses and MRI scans were recorded in a cohort of 119 FTY patients, during one year of treatment. Simple and multivariate logistic regression models, were performed. ROC analysis identified cut-off values of LS predicting a higher risk of relapses and of Gd+ lesions. We demonstrated a FTY-induced re-modulation of the immune system, suggesting that LS in RMS FTY treated patients can predict the clinical response to the drug...
December 21, 2016: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28038891/characterization-of-a-reproducible-rat-eamg-model-induced-with-various-human-acetylcholine-receptor-domains
#15
Konstantinos Lazaridis, Vassiliki Baltatzidi, Nikolaos Trakas, Eleni Koutroumpi, Nikolaos Karandreas, Socrates J Tzartos
Myasthenia gravis (MG) is usually caused by antibodies against the muscle acetylcholine receptor (AChR). Experimental autoimmune MG (EAMG) is the animal model of MG, typically induced by immunization of rodents with AChR isolated from the electric organ of Torpedo californica. We have successfully induced EAMG in Lewis rats by immunization with the extracellular domains (ECDs) of the human AChR subunits (α, β, γ, δ and ε) expressed in yeast. Analysis of the antibody titers revealed a robust antigenic response against all the peptides, but a marked difference in their pathogenicity; the α subunit ECD was the most pathogenic, resulting in the highest percentage of affected animals...
December 21, 2016: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28063616/chitinase-3-like-1-is-associated-with-the-response-to-interferon-beta-treatment-in-multiple-sclerosis
#16
Clara Matute-Blanch, Jordi Río, Luisa M Villar, Luciana Midaglia, Sunny Malhotra, José C Álvarez-Cermeño, Angela Vidal-Jordana, Xavier Montalban, Manuel Comabella
Chitinase 3-like 1 (CHI3L1) plays a prognostic role in patients with multiple sclerosis (MS). Here, we investigated a potential association between CHI3L1 and the response to interferon-beta (IFNβ) and glatiramer acetate (GA). Serum CHI3L1 levels were measured by ELISA in 117 relapsing-remitting MS (RRMS) patients, 76 IFNβ-treated and 41 GA-treated patients. CHI3L1 levels were increased by GA (p=0.014) but unchanged by IFNβ (p=0.830). CHI3L1 was associated with IFNβ response and levels were higher in non-responder group (p=0...
December 18, 2016: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28034466/modulation-of-host-immune-responses-following-non-hematopoietic-stem-cell-transplantation-translational-implications-in-progressive-multiple-sclerosis
#17
REVIEW
Giulio Volpe, Joshua D Bernstock, Luca Peruzzotti-Jametti, Stefano Pluchino
There exists an urgent need for effective treatments for those patients suffering from chronic/progressive multiple sclerosis (MS). Accordingly, it has become readily apparent that different classes of stem cell-based therapies must be explored at both the basic science and clinical levels. Herein, we provide an overview of the basic mechanisms underlying the pre-clinical benefits of exogenously delivered non-hematopoietic stem cells (nHSCs) in animal models of MS. Further, we highlight a number of early clinical trials in which nHSCs have been used to treat MS...
December 15, 2016: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28038893/optical-coherence-tomography-a-quantitative-tool-to-measure-neurodegeneration-and-facilitate-testing-of-novel-treatments-for-tissue-protection-in-multiple-sclerosis
#18
Eliza Gordon-Lipkin, Peter A Calabresi
Optical coherence tomography (OCT) is a relatively new imaging technology that has been introduced as a powerful biomarker in neurological disease, including multiple sclerosis. In this review, OCT as an imaging technique, its reproducibility and validation in multiple sclerosis, application to other neurodegenerative diseases and future technological directions are discussed.
December 14, 2016: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28065581/nitric-oxide-synthase-inhibitor-aminoguanidine-reduces-intracerebroventricular-colchicine-induced-neurodegeneration-memory-impairments-and-changes-of-systemic-immune-responses-in-rats
#19
Susmita Sil, Tusharkanti Ghosh, Rupsa Ghosh, Pritha Gupta
Intracerebroventricular (i.c.v.) injection of colchicine induces neurodegeneration, memory impairments and changes of some systemic immune responses in rats. Though the role of cox 2 in these colchicine induced changes have been evaluated, the influence of nitric oxide synthase (NOS) remains to be studied. The present study was designed to assess the role of NOS on the i.c.v. colchicine induced neurodegeneration, memory impairments and changes of some systemic immune responses by inhibiting its activity with aminoguanidine...
December 13, 2016: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28007303/innate-immune-regulation-of-autoimmunity-in-multiple-sclerosis-focus-on-the-role-of-toll-like-receptor-2
#20
Md Jakir Hossain, Radu Tanasescu, Bruno Gran
Innate immunity relies on a set of germline-encoded receptors including Toll-like receptors (TLRs) that enable the host to discriminate between self and non-self. Multiple sclerosis (MS) is an autoimmune inflammatory demyelinating disease of the central nervous system (CNS). Infections are thought to play an important role in disease susceptibility. The role of innate immunity in MS has been recently appreciated. TLR2, a member of the TLR family, forms heterodimers with either TLR1 or TLR6 and detects a wide range of microbial as well as self-derived molecular structures...
December 13, 2016: Journal of Neuroimmunology
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