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https://www.readbyqxmd.com/read/29150958/inhibition-of-mir-200b-mir-429-contributes-to-neuropathic-pain-development-through-targeting-zinc-finger-e-box-binding-protein-1
#1
Xue-Tao Yan, Ying Zhao, Xiao-Li Cheng, Xiang-Hu He, Yu Wang, Wen-Zhong Zheng, Hu Chen, Yan-Lin Wang
Many studies have reported that microRNAs participate in neuropathic pain development. Previously, miR-200b and miR-429 are reported to be involved in various diseases. In our current study, we focused on their roles in neuropathic pain and we found that miR-200b and miR-429 were significantly decreased in chronic constriction injury (CCI) rat spinal cords and isolated microglials. miR-200b and miR-429 overexpression were able to relieve neuropathic pain through modulating PWT and PWL in CCI rats. Meanwhile, we observed that both miR-200b and miR-429 upregulation could repress neuroinflammation via inhibiting inflammatory cytokines such as IL-6, IL-1β and TNF-α in CCI rats...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150951/inflammasome-its-role-in-traumatic-brain-and-spinal-cord-injury
#2
REVIEW
Keywan Mortezaee, Neda Khanlarkhani, Cordian Beyer, Adib Zendedel
Traumatic brain injury (TBI) and spinal cord injury (SCI) are pathological events that lead to neuropathological conditions which have in consequence the initiation of pro-inflammatory cytokine production. Neuroinflammation plays a key role in the secondary phase of both TBI and SCI after initial cell death. Activation of cytoplasmic inflammasome complexes is regarded as the essential step of neuroinflammation and a key trigger for neuronal death called pyroptosis. Inflammasome complexes are involved in activation of caspase-1 which catalyzes the cleavage of pro-interleukins into their active forms (including interleukin-18 (IL-18) and IL-1β)...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150939/mir-34b-5p-inhibition-attenuates-lung-inflammation-and-apoptosis-in-an-lps-induced-acute-lung-injury-mouse-model-by-targeting-progranulin
#3
Wang Xie, Qingchun Lu, Kailing Wang, Jingjing Lu, Xia Gu, Dongyi Zhu, Fanglei Liu, Zhongliang Guo
BACKGROUND: Inflammation and apoptosis play important roles in the initiation and progression of acute lung injury (ALI). Our previous study has shown that progranulin (PGRN) exerts lung protective effects during LPS-induced ALI. Here, we have investigated the potential roles of PGRN-targeting microRNAs (miRNAs) in regulating inflammation and apoptosis in ALI and have highlighted the important role of PGRN. METHODS: LPS-induced lung injury and the protective roles of PGRN in ALI were first confirmed...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150834/il-22-neutralizing-autoantibodies-impair-fungal-clearance-in-murine-oropharyngeal-candidiasis-model
#4
Rudolf Bichele, Jaanika Kärner, Kai Truusalu, Imbi Smidt, Reet Mändar, Heather R Conti, Sarah L Gaffen, Pärt Peterson, Martti Laan, Kai Kisand
Protection against mucocutaneous candidiasis depends on the T helper (Th)17 pathway, as gene defects affecting its integrity result in inability to clear Candida albicans infection on body surfaces. Moreover, autoantibodies neutralizing Th17 cytokines have been related to chronic candidiasis in a rare inherited disorder called autoimmune polyendocriopathy candidiasis ectodermal dystrophy (APECED) caused by mutations in autoimmune regulator (AIRE) gene. However, the direct pathogenicity of these autoantibodies has not yet been addressed...
November 17, 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/29150743/differential-response-of-neural-cells-to-trauma-induced-swelling-in-vitro
#5
A R Jayakumar, M Taherian, K S Panickar, N Shamaladevi, M E Rodriguez, B G Price, M D Norenberg
Brain edema and the associated increase in intracranial pressure are major consequences of traumatic brain injury (TBI) that accounts for most early deaths after TBI. We recently showed that acute severe trauma to cultured astrocytes results in cell swelling. We further examined whether trauma induces cell swelling in neurons and microglia. We found that severe trauma also caused cell swelling in cultured neurons, whereas no swelling was observed in microglia. While severe trauma caused cell swelling in both astrocytes and neurons, mild trauma to astrocytes, neurons, and microglia failed to cell swelling...
November 17, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/29150715/interleukin-33-promotes-helper-t-cell-type-2-17-inflammation-in-children-with-allergic-rhinitis
#6
Yuanming Wang, Chuling Li, Xianglin Luo, Deyu Xu, Yaxiong Xu, Guanquan Li, Fang Liao, Shujuan Tan
OBJECTIVES: Interleukin-33 is a recently described cytokine which involved in helper T cell type-2 (Th2) mediated diseases. However, its regulatory effect in the pathogenesis of children allergic rhinitis (AR) needs to be further characterized. This study aims to evaluate the expression and role of IL-33 in children with AR. METHODS: Forty children with AR and twenty normal controls were included. IL-33 and Th cytokine production in serum and nasal lavage was examined by immunosorbent assay (ELISA), respectively...
November 17, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29150694/inhibition-of-intimal-hyperplasia-in-murine-aortic-allografts-by-administration-of-a-small-molecule-tlr4-inhibitor-tak-242
#7
Chuangyan Wu, Xiangchao Ding, Cheng Zhou, Ping Ye, Yuan Sun, Jie Wu, Anchen Zhang, Xiaofan Huang, Lingyun Ren, Ke Wang, Peng Deng, Zhang Yue, Jiuling Chen, Sihua Wang, Jiahong Xia
Graft arteriosclerosis (GA) is the leading cause of late cardiac allograft dysfunction. The innate immune system plays a major role in GA, paprticularly Toll-like receptor 4 (TLR4) signaling. Here we characterized the role of TLR4 and its antagonist TAK-242 in a mouse model of GA. BALB/c (H-2d) donor aortas were transplanted into C57BL/6 (H-2b) recipients, and the mice received intraperitoneal injection of 3 or 10 mg/kg of TAK-242 or vehicle every other day for 1, 2, 4, 6, 8 and 12 weeks. With TAK-242 administration, intimal hyperplasia initially appeared at 2 weeks after transplantation, and TAK-242 postponed the progression of neointimal formation in allogeneic aortic grafts...
November 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29150659/ectopic-foxp3-expression-preserves-primitive-features-of-human-hematopoietic-stem-cells-while-impairing-functional-t-cell-differentiation
#8
F R Santoni de Sio, L Passerini, M M Valente, F Russo, L Naldini, M G Roncarolo, R Bacchetta
FOXP3 is the transcription factor ruling regulatory T cell function and maintenance of peripheral immune tolerance, and mutations in its coding gene causes IPEX autoimmune syndrome. FOXP3 is also a cell-cycle inhibitor and onco-suppressor in different cell types. In this work, we investigate the effect of ectopic FOXP3 expression on HSC differentiation and we challenged this approach as a possible HSC-based gene therapy for IPEX. FOXP3-expressing HSC showed reduced proliferation ability and increased maintenance of primitive markers in vitro in both liquid and OP9-ΔL1 co-cultures...
November 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29150654/primary-aldosteronism-patients-show-skin-alterations-and-abnormal-activation-of-glucocorticoid-receptor-in-keratinocytes
#9
Julia Boix, Judit Bigas, Lisa M Sevilla, Maurizio Iacobone, Marilisa Citton, Francesca Torresan, Brasilina Caroccia, Gian Paolo Rossi, Paloma Pérez
Primary aldosteronism (PA) is a disease characterized by high aldosterone levels caused by benign adrenal tumors being the most frequent cause of secondary hypertension. Aldosterone plays vital physiological roles through the mineralocorticoid receptor (MR) but in certain cell types, it can also activate the glucocorticoid (GC) receptor (GR). Both MR and GR are structurally and functionally related and belong to the same family of ligand-dependent transcription factors that recognize identical GC regulatory elements (GREs) on their target genes...
November 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29150625/porphyromonas-gingivalis-lipopolysaccharides-act-exclusively-through-tlr4-with-a-resilience-between-mouse-and-human
#10
Brice Nativel, David Couret, Pierre Giraud, Olivier Meilhac, Christian Lefebvre d'Hellencourt, Wildriss Viranaïcken, Christine Robert Da Silva
Porphyromonas gingivalis is a key bacterium in chronic periodontitis, which is associated with several chronic inflammatory diseases. Lipopolysaccharides from P. gingivalis (Pg LPS) can activate multiple cell types via the production of pro-inflammatory cytokines. The receptors for Pg LPS have initially been reported as TLR2, contrasting with the well-studied TLR4 receptor for E. coli LPS; this observation remains controversial since synthetic Pg lipid A activates TLR4 but not TLR2. Despite this observation, the dogma of Pg LPS-mediated TLR2 activation remains the basis of many hypotheses and result interpretations...
November 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29150606/loss-of-hif-1%C3%AE-in-natural-killer-cells-inhibits-tumour-growth-by-stimulating-non-productive-angiogenesis
#11
Ewelina Krzywinska, Chahrazade Kantari-Mimoun, Yann Kerdiles, Michal Sobecki, Takayuki Isagawa, Dagmar Gotthardt, Magali Castells, Johannes Haubold, Corinne Millien, Thomas Viel, Bertrand Tavitian, Norihiko Takeda, Joachim Fandrey, Eric Vivier, Veronika Sexl, Christian Stockmann
Productive angiogenesis, a prerequisite for tumour growth, depends on the balanced release of angiogenic and angiostatic factors by different cell types within hypoxic tumours. Natural killer (NK) cells kill cancer cells and infiltrate hypoxic tumour areas. Cellular adaptation to low oxygen is mediated by Hypoxia-inducible factors (HIFs). We found that deletion of HIF-1α in NK cells inhibited tumour growth despite impaired tumour cell killing. Tumours developing in these conditions were characterised by a high-density network of immature vessels, severe haemorrhage, increased hypoxia, and facilitated metastasis due to non-productive angiogenesis...
November 17, 2017: Nature Communications
https://www.readbyqxmd.com/read/29150567/amplifying-ifn-%C3%AE-signaling-in-dendritic-cells-by-cd11c-specific-loss-of-socs1-increases-innate-immunity-to-infection-while-decreasing-adaptive-immunity
#12
Alejandro F Alice, Gwen Kramer, Shelly Bambina, Jason R Baird, Keith S Bahjat, Michael J Gough, Marka R Crittenden
Although prophylactic vaccines provide protective humoral immunity against infectious agents, vaccines that elicit potent CD8 T cell responses are valuable tools to shape and drive cellular immunity against cancer and intracellular infection. In particular, IFN-γ-polarized cytotoxic CD8 T cell immunity is considered optimal for protective immunity against intracellular Ags. Suppressor of cytokine signaling (SOCS)1 is a cross-functional negative regulator of TLR and cytokine receptor signaling via degradation of the receptor-signaling complex...
November 17, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29150563/nfat5-regulated-macrophage-polarization-supports-the-proinflammatory-function-of-macrophages-and-t-lymphocytes
#13
Mónica Tellechea, Maria Buxadé, Sonia Tejedor, Jose Aramburu, Cristina López-Rodríguez
Macrophages are exquisite sensors of tissue homeostasis that can rapidly switch between pro- and anti-inflammatory or regulatory modes to respond to perturbations in their microenvironment. This functional plasticity involves a precise orchestration of gene expression patterns whose transcriptional regulators have not been fully characterized. We had previously identified the transcription factor NFAT5 as an activator of TLR-induced responses, and in this study we explore its contribution to macrophage functions in different polarization settings...
November 17, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29150554/cancer-cells-induce-interleukin-22-production-from-memory-cd4-t-cells-via-interleukin-1-to-promote-tumor-growth
#14
Cornelia Voigt, Peter May, Adrian Gottschlich, Anamarija Markota, Daniel Wenk, Inga Gerlach, Sebastian Voigt, Georgios T Stathopoulos, Kristina A M Arendt, Constanze Heise, Felicitas Rataj, Klaus-Peter Janssen, Melanie Königshoff, Hauke Winter, Isabelle Himsl, Wolfgang E Thasler, Max Schnurr, Simon Rothenfußer, Stefan Endres, Sebastian Kobold
IL-22 has been identified as a cancer-promoting cytokine that is secreted by infiltrating immune cells in several cancer models. We hypothesized that IL-22 regulation would occur at the interface between cancer cells and immune cells. Breast and lung cancer cells of murine and human origin induced IL-22 production from memory CD4(+) T cells. In the present study, we found that IL-22 production in humans is dependent on activation of the NLRP3 inflammasome with the subsequent release of IL-1β from both myeloid and T cells...
November 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29150375/type-i-interferon-and-proinflammatory-cytokine-levels-in-cerebrospinal-fluid-of-newborns-with-rotavirus-associated-leukoencephalopathy
#15
Kyung Yeon Lee, Chang Hoon Moon, Seong Hoon Choi
OBJECTIVE: The purpose of this study was to identify whether there is an increase in type I interferon and proinflammatory cytokine levels in the cerebrospinal fluid of newborns with rotavirus-associated leukoencephalopathy. METHODS: Levels of type I interferons (interferon-alpha and interferon-beta) and proinflammatory cytokines (interleukin-6 and interferon-gamma) were measured in the cerebrospinal fluid of 23 newborns with rotavirus-associated leukoencephalopathy (patient group) and 39 infants under 90 days-of-age (control group)...
November 14, 2017: Brain & Development
https://www.readbyqxmd.com/read/29150290/premature-atherosclerosis-in-premenopausal-women-does-cytokine-balance-play-a-role
#16
Jo-Ann Eastwood, Doris A Taylor, B Delia Johnson, Micheline Resende, Barry L Sharaf, Bina Ahmed, Margo Minissian, Chrisandra Shufelt, Noel Bairey Merz
Contributory risk factors to premature coronary artery disease (CAD) in premenopausal women are poorly understood and data on this subset of women is lacking. There is growing evidence that the process of inflammation is a part of the atherosclerotic process. Mechanistic insights from animal work suggest that the profile of circulating cytokines reflects both endothelial integrity and the presence of immune and progenitor cells. Significant differences in pro- and anti-inflammatory cytokine concentrations between patients with and without CAD exist...
November 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/29150166/exercise-and-mental-health
#17
REVIEW
Kathleen Mikkelsen, Lily Stojanovska, Momir Polenakovic, Marijan Bosevski, Vasso Apostolopoulos
There is a growing body of literature that recognizes the positive effects of exercise on mood states such as anxiety, stress and depression, through physiological and biochemical mechanisms, including endorphins, mitochondria, mammalian target of rapamycin, neurotransmitters and the hypothalamic-pituitary-adrenal axis, and via the thermogenic hypothesis. In addition, psychological mechanisms influence the effects of exercise on mood states, as suggested by both the distraction hypothesis and the self-efficacy hypothesis...
December 2017: Maturitas
https://www.readbyqxmd.com/read/29150026/regulatory-t-cells-friends-or-foe-in-human-mycobacterium-leprae-infection
#18
Ana T Chaves, Atvaldo F Ribeiro-Junior, Sandra Lyon, Nayara I Medeiros, Fábio Cassirer-Costa, Karina S Paula, Edilamar S Alecrim, Cristiane A S Menezes, Rodrigo Correa-Oliveira, Manoel O C Rocha, Juliana A S Gomes
Regulatory T cells (Tregs) are known to control immune responses by suppressing the antigen-presenting and effector T cells. Some mechanisms adopted by Tregs in combating Mycobacterium infections have been proposed. Nevertheless, in M. leprae infection, also known as leprosy or Hansen's disease, the role of Tregs has not been completely elucidated. Using multicolor flow cytometry, we evaluated the expression of different cell surface and intracellular molecules present in Tregs from peripheral blood samples of leprosy patients...
November 13, 2017: Immunobiology
https://www.readbyqxmd.com/read/29149899/selective-depletion-of-microglial-progranulin-in-mice-is-not-sufficient-to-cause-neuronal-ceroid-lipofuscinosis-or-neuroinflammation
#19
Terri L Petkau, Natalia Kosior, Kathleen de Asis, Colúm Connolly, Blair R Leavitt
BACKGROUND: Progranulin deficiency due to heterozygous null mutations in the GRN gene are a common cause of familial frontotemporal lobar degeneration (FTLD), while homozygous loss-of-function GRN mutations are thought to be a rare cause of neuronal ceroid lipofuscinosis (NCL). Aged progranulin-knockout (Grn-null) mice display highly exaggerated lipofuscinosis, microgliosis, and astrogliosis, as well as mild cell loss in specific brain regions. In the brain, progranulin is predominantly expressed in neurons and microglia, and previously, we demonstrated that neuronal-specific depletion of progranulin does not recapitulate the neuropathological phenotype of Grn-null mice...
November 17, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29149888/correction-to-analysis-of-plasma-multiplex-cytokines-and-increased-level-of-il-10-and-il-1ra-cytokines-in-febrile-seizures
#20
Kyungmin Kim, Byung Ok Kwak, Aram Kwon, Jongseok Ha, Soo-Jin Kim, Sun Whan Bae, Jae Sung Son, Soo-Nyung Kim, Ran Lee
After publication of the article [1], it has been brought to our attention that several of the authors' names were formatted incorrectly in the original version of the article. The corrections are listed below -"Byungok Kwak" should be "Byung Ok Kwak"Soojin Kim" should be "Soo-Jin Kim"Sunwhan Bae" should be "Sun Whan Bae"Jaesung Son" should be "Jae Sung Son"Soonyung Kim" should be "Soo-Nyung Kim"The original version of the article has now been revised.
November 17, 2017: Journal of Neuroinflammation
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