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Journal of Neuroinflammation

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https://www.readbyqxmd.com/read/28629465/natural-igm-antibodies-that-bind-neoepitopes-exposed-as-a-result-of-spinal-cord-injury-drive-secondary-injury-by-activating-complement
#1
Aarti Narang, Fei Qiao, Carl Atkinson, Hong Zhu, Xiaofeng Yang, Liudmila Kulik, V Michael Holers, Stephen Tomlinson
BACKGROUND: Natural IgM antibodies (Abs) function as innate immune sensors of injury via recognition of neoepitopes expressed on damaged cells, although how this recognition systems function following spinal cord injury (SCI) exposes various neoepitopes and their precise nature remains largely unknown. Here, we investigated the role of two natural IgM monoclonal Abs (mAbs), B4 and C2, that recognize post-ischemic neoepitopes following ischemia and reperfusion in other tissues. METHODS: Identification of post-SCI expressed neoepitopes was examined using previously characterized monoclonal Abs (B4 and C2 mAbs)...
June 19, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28610608/isoliquiritigenin-alleviates-early-brain-injury-after-experimental-intracerebral-hemorrhage-via-suppressing-ros-and-or-nf-%C3%AE%C2%BAb-mediated-nlrp3-inflammasome-activation-by-promoting-nrf2-antioxidant-pathway
#2
Jun Zeng, Yizhao Chen, Rui Ding, Liang Feng, Zhenghao Fu, Shuo Yang, Xinqing Deng, Zhichong Xie, Shizhong Zheng
BACKGROUND: Intracerebral hemorrhage (ICH) induces potently oxidative stress responses and inflammatory processes. Isoliquiritigenin (ILG) is a flavonoid with a chalcone structure and can activate nuclear factor erythroid-2 related factor 2 (Nrf2)-mediated antioxidant system, negatively regulate nuclear factor-κB (NF-κB) and nod-like receptor family, pyrin domain-containing 3 (NLRP3) inflammasome pathways, but its role and potential molecular mechanisms in the pathology following ICH remain unclear...
June 13, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28599675/ykl-40-chitinase-3-like-i-is-expressed-in-a-subset-of-astrocytes-in-alzheimer-s-disease-and-other-tauopathies
#3
Marta Querol-Vilaseca, Martí Colom-Cadena, Jordi Pegueroles, Carla San Martín-Paniello, Jordi Clarimon, Olivia Belbin, Juan Fortea, Alberto Lleó
BACKGROUND: The innate immune system is known to be involved early in the pathogenesis of Alzheimer's disease (AD) and other neurodegenerative disorders. The inflammatory response in the central nervous system can be measured postmortem or through a series of inflammatory mediator surrogates. YKL-40 (also named Chitinase-3-like I) has been frequently investigated in body fluids as a surrogate marker of neuroinflammation in AD and other neurological disorders. However, the expression pattern of YKL-40 in the human brain with neurodegenerative pathology remains poorly investigated...
June 9, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28599652/regulatory-t-cells-in-multiple-sclerosis-and-myasthenia-gravis
#4
REVIEW
K M Danikowski, S Jayaraman, B S Prabhakar
Multiple sclerosis (MS) is a chronic debilitating disease of the central nervous system primarily mediated by T lymphocytes with specificity to neuronal antigens in genetically susceptible individuals. On the other hand, myasthenia gravis (MG) primarily involves destruction of the neuromuscular junction by antibodies specific to the acetylcholine receptor. Both autoimmune diseases are thought to result from loss of self-tolerance, which allows for the development and function of autoreactive lymphocytes. Although the mechanisms underlying compromised self-tolerance in these and other autoimmune diseases have not been fully elucidated, one possibility is numerical, functional, and/or migratory deficits in T regulatory cells (Tregs)...
June 9, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28595650/acute-neuroinflammation-induces-ais-structural-plasticity-in-a-nox2-dependent-manner
#5
S D Benusa, N M George, B A Sword, G H DeVries, J L Dupree
BACKGROUND: Chronic microglia-mediated inflammation and oxidative stress are well-characterized underlying factors in neurodegenerative disease, whereby reactive inflammatory microglia enhance ROS production and impact neuronal integrity. Recently, it has been shown that during chronic inflammation, neuronal integrity is compromised through targeted disruption of the axon initial segment (AIS), the axonal domain critical for action potential initiation. AIS disruption was associated with contact by reactive inflammatory microglia which wrap around the AIS, increasing association with disease progression...
June 8, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28583160/differential-expression-of-cathepsin-e-in-transthyretin-amyloidosis-from-neuropathology-to-the-immune-system
#6
Nádia Pereira Gonçalves, João Moreira, Diana Martins, Paulo Vieira, Laura Obici, Giampaolo Merlini, Margarida Saraiva, Maria João Saraiva
BACKGROUND: Increasing evidence supports a key role for inflammation in the neurodegenerative process of familial amyloidotic polyneuropathy (FAP). While there seems to be an overactivation of the neuronal interleukin-1 signaling pathway, the immune response is apparently compromised in FAP. Accordingly, little immune cell infiltration is observed around pre-fibrillar or fibrillar amyloid deposits, with the underlying mechanism for this phenomenon remaining poorly understood. Cathepsin E (CtsE) is an important intermediate for antigen presentation and chemotaxis, but its role in the pathogenesis of FAP disease remains unknown...
June 6, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28583195/effects-of-phosphodiesterase-3a-modulation-on-murine-cerebral-microhemorrhages
#7
Rachita K Sumbria, Vitaly Vasilevko, Mher Mahoney Grigoryan, Annlia Paganini-Hill, Ronald Kim, David H Cribbs, Mark J Fisher
BACKGROUND: Cerebral microbleeds (CMB) are MRI-demonstrable cerebral microhemorrhages (CMH) which commonly coexist with ischemic stroke. This creates a challenging therapeutic milieu, and a strategy that simultaneously protects the vessel wall and provides anti-thrombotic activity is an attractive potential approach. Phosphodiesterase 3A (PDE3A) inhibition is known to provide cerebral vessel wall protection combined with anti-thrombotic effects. As an initial step in the development of a therapy that simultaneously treats CMB and ischemic stroke, we hypothesized that inhibition of the PDE3A pathway is protective against CMH development...
June 5, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28577577/serum-thyroid-stimulating-hormone-and-interleukin-8-levels-in-boys-with-autism-spectrum-disorder
#8
Sarika Singh, Umar Yazdani, Bharathi Gadad, Sayed Zaman, Linda S Hynan, Nichole Roatch, Claire Schutte, C Nathan Marti, Laura Hewitson, Dwight C German
BACKGROUND: Autism spectrum disorder (ASD) affects approximately 1 in 68 children in the USA. An ASD blood biomarker may enable early diagnosis and/or identification of new therapeutic targets. Serum samples from ASD and typically developing (TD) boys (n = 30/group) were screened for differences in 110 proteins using a multiplex immunoassay. RESULTS: Eleven proteins were found that together could confirm ASD with modest accuracy using multiple training and test sets...
June 2, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28577576/sphingosine-1-phosphate-receptor-3-and-rhoa-signaling-mediate-inflammatory-gene-expression-in-astrocytes
#9
Stephanie S Dusaban, Jerold Chun, Hugh Rosen, Nicole H Purcell, Joan Heller Brown
BACKGROUND: Sphingosine 1-phosphate (S1P) signals through G protein-coupled receptors to elicit a wide range of cellular responses. In CNS injury and disease, the blood-brain barrier is compromised, causing leakage of S1P from blood into the brain. S1P can also be locally generated through the enzyme sphingosine kinase-1 (Sphk1). Our previous studies demonstrated that S1P activates inflammation in murine astrocytes. The S1P1 receptor subtype has been most associated with CNS disease, particularly multiple sclerosis...
June 2, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28576128/b-cells-do-not-have-a-major-pathophysiologic-role-in-acute-ischemic-stroke-in-mice
#10
Michael K Schuhmann, Friederike Langhauser, Peter Kraft, Christoph Kleinschnitz
BACKGROUND: Lymphocytes have been shown to play an important role in the pathophysiology of acute ischemic stroke, but the properties of B cells remain controversial. The aim of this study was to unravel the role of B cells during acute cerebral ischemia using pharmacologic B cell depletion, B cell transgenic mice, and adoptive B cell transfer experiments. METHODS: Transient middle cerebral artery occlusion (60 min) was induced in wild-type mice treated with an anti-CD20 antibody 24 h before stroke onset, JHD (-/-) mice and Rag1 (-/-) mice 24 h after adoptive B cell transfer...
June 2, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28558818/microrna-101a-regulates-microglial-morphology-and-inflammation
#11
Reiko Saika, Hiroshi Sakuma, Daisuke Noto, Shuhei Yamaguchi, Takashi Yamamura, Sachiko Miyake
BACKGROUND: Microglia, as well as other tissue-resident macrophages, arise from yolk sac progenitors. Thus, it is likely that the central nervous system environment is critical for the acquisition of a distinct microglial phenotype. Several microRNAs that are enriched in the brain play crucial roles in brain development and may also play a role in the differentiation of microglia. METHODS: To track the differentiation of hematopoietic cells into microglia, lineage-negative bone marrow cells were co-cultured with astrocytes in the absence or presence of microRNAs or their inhibitors...
May 30, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28558815/pathophysiology-of-chronic-subdural-haematoma-inflammation-angiogenesis-and-implications-for-pharmacotherapy
#12
REVIEW
Ellie Edlmann, Susan Giorgi-Coll, Peter C Whitfield, Keri L H Carpenter, Peter J Hutchinson
Chronic subdural haematoma (CSDH) is an encapsulated collection of blood and fluid on the surface of the brain. Historically considered a result of head trauma, recent evidence suggests there are more complex processes involved. Trauma may be absent or very minor and does not explain the progressive, chronic course of the condition. This review focuses on several key processes involved in CSDH development: angiogenesis, fibrinolysis and inflammation. The characteristic membrane surrounding the CSDH has been identified as a source of fluid exudation and haemorrhage...
May 30, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28558791/receptor-tyrosine-kinases-play-a-significant-role-in-human-oligodendrocyte-inflammation-and-cell-death-associated-with-the-lyme-disease-bacterium-borrelia-burgdorferi
#13
Geetha Parthasarathy, Mario T Philipp
BACKGROUND: In previous studies, human oligodendrocytes were demonstrated to undergo apoptosis in the presence of Borrelia burgdorferi under an inflammatory milieu. Subsequently, we determined that the MEK/ERK pathway played a significant role in triggering downstream inflammation as well as apoptosis. However, the identity of receptors triggered by exposure to B. burgdorferi and initiating signaling events was unknown. METHODS: In this study, we explored the role of several TLR and EGFR/FGFR/PDGFR tyrosine kinase pathways in inducing inflammation in the presence of B...
May 30, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28545543/inhibition-of-colony-stimulating-factor-1-receptor-early-in-disease-ameliorates-motor-deficits-in-sca1-mice
#14
Wenhui Qu, Andrea Johnson, Joo Hyun Kim, Abigail Lukowicz, Daniel Svedberg, Marija Cvetanovic
BACKGROUND: Polyglutamine (polyQ) expansion in the protein Ataxin-1 (ATXN1) causes spinocerebellar ataxia type 1 (SCA1), a fatal dominantly inherited neurodegenerative disease characterized by motor deficits, cerebellar neurodegeneration, and gliosis. Currently, there are no treatments available to delay or ameliorate SCA1. We have examined the effect of depleting microglia during the early stage of disease by using PLX, an inhibitor of colony-stimulating factor 1 receptor (CSFR1), on disease severity in a mouse model of SCA1...
May 25, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28532450/lps-induced-systemic-inflammation-reveals-an-immunomodulatory-role-for-the-prion-protein-at-the-blood-brain-interface
#15
Ø Salvesen, M R Reiten, A Espenes, M K Bakkebø, M A Tranulis, C Ersdal
BACKGROUND: The cellular prion protein (PrP(C)) is an evolutionary conserved protein abundantly expressed not only in the central nervous system but also peripherally including the immune system. A line of Norwegian dairy goats naturally devoid of PrP(C) (PRNP (Ter/Ter)) provides a novel model for studying PrP(C) physiology. METHODS: In order to explore putative roles for PrP(C) in acute inflammatory responses, we performed a lipopolysaccharide (LPS, Escherichia coli O26:B6) challenge of 16 goats (8 PRNP (+/+) and 8 PRNP (Ter/Ter)) and included 10 saline-treated controls (5 of each PRNP genotype)...
May 22, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28494768/inhibition-of-cd40-traf6-interactions-by-the-small-molecule-inhibitor-6877002-reduces-neuroinflammation
#16
Suzanne A B M Aarts, Tom T P Seijkens, Pascal J H Kusters, Susanne M A van der Pol, Barbara Zarzycka, Priscilla D A M Heijnen, Linda Beckers, Myrthe den Toom, Marion J J Gijbels, Louis Boon, Christian Weber, Helga E de Vries, Gerry A F Nicolaes, Christine D Dijkstra, Gijs Kooij, Esther Lutgens
BACKGROUND: The influx of leukocytes into the central nervous system (CNS) is a key hallmark of the chronic neuro-inflammatory disease multiple sclerosis (MS). Strategies that aim to inhibit leukocyte migration across the blood-brain barrier (BBB) are therefore regarded as promising therapeutic approaches to combat MS. As the CD40L-CD40 dyad signals via TNF receptor-associated factor 6 (TRAF6) in myeloid cells to induce inflammation and leukocyte trafficking, we explored the hypothesis that specific inhibition of CD40-TRAF6 interactions can ameliorate neuro-inflammation...
May 12, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28490373/thioredoxin-interacting-protein-links-endoplasmic-reticulum-stress-to-inflammatory-brain-injury-and-apoptosis-after-subarachnoid-haemorrhage
#17
Qing Zhao, Xudong Che, Hongxia Zhang, Pianpian Fan, Guanping Tan, Liu Liu, Dengzhi Jiang, Jun Zhao, Xiang Xiang, Yidan Liang, Xiaochuan Sun, Zhaohui He
BACKGROUND: Early brain injury (EBI) is considered a major contributor to the high morbidity and mortality associated with subarachnoid haemorrhage (SAH). Both of sterile inflammation and apoptosis are considered the important causes of EBI. Recently, it was confirmed that thioredoxin-interacting protein (TXNIP) not only participates in inflammatory amplification but also stimulates the apoptosis signalling cascade pathway. However, whether the effects of TXNIP influence the pathogenesis of SAH remains unclear...
May 11, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28486971/a-role-for-cathepsin-z-in-neuroinflammation-provides-mechanistic-support-for-an-epigenetic-risk-factor-in-multiple-sclerosis
#18
Euan R O Allan, Rhiannon I Campden, Benjamin W Ewanchuk, Pankaj Tailor, Dale R Balce, Neil T McKenna, Catherine J Greene, Amy L Warren, Thomas Reinheckel, Robin M Yates
BACKGROUND: Hypomethylation of the cathepsin Z locus has been proposed as an epigenetic risk factor for multiple sclerosis (MS). Cathepsin Z is a unique lysosomal cysteine cathepsin expressed primarily by antigen presenting cells. While cathepsin Z expression has been associated with neuroinflammatory disorders, a role for cathepsin Z in mediating neuroinflammation has not been previously established. METHODS: Experimental autoimmune encephalomyelitis (EAE) was induced in both wildtype mice and mice deficient in cathepsin Z...
May 10, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28486969/activation-of-p2x7-receptor-and-nlrp3-inflammasome-assembly-in-hippocampal-glial-cells-mediates-chronic-stress-induced-depressive-like-behaviors
#19
Na Yue, Huijie Huang, Xiaocang Zhu, Qiuqin Han, Yalin Wang, Bing Li, Qiong Liu, Gencheng Wu, Yuqiu Zhang, Jin Yu
BACKGROUND: In recent years, proinflammatory cytokine interleukin-1β (IL-1β) was considered to play a critical role in the pathogenesis of depression. In addition, P2X7 receptor (P2X7R), a member of the purinergic receptor family, which is predominantly present on microglia, as well as on astrocytes and neurons in lesser amounts in the central nervous system, was suggested to be involved in the processing and releasing of IL-1β. Here, we investigated the role of P2X7R in the pathogenesis of depression...
May 10, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28482852/retraction-note-to-increased-neuroinflammatory-and-arachidonic-acid-cascade-markers-and-reduced-synaptic-proteins-in-brain-of-hiv-1-transgenic-rats
#20
Jagadeesh Sridhara Rao, Hyung-Wook Kim, Matthew Kellom, Dede Greenstein, Mei Chen, Andrew David Kraft, Gaylia Jean Harry, Stanley Isaac Rapoport, Mireille Basselin
No abstract text is available yet for this article.
May 9, 2017: Journal of Neuroinflammation
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