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https://www.readbyqxmd.com/read/28914804/the-role-of-erk-signaling-in-experimental-autoimmune-encephalomyelitis
#1
Katharina Birkner, Beatrice Wasser, Julia Loos, Alexander Plotnikov, Rony Seger, Frauke Zipp, Esther Witsch, Stefan Bittner
Extracellular signal-regulated kinase (ERK) signaling plays a crucial role in regulating immune cell function and has been implicated in autoimmune disorders. To date, all commercially available inhibitors of ERK target upstream components, such as mitogen-activated protein (MAP) kinase/ERK kinase (MEKs), but not ERK itself. Here, we directly inhibit nuclear ERK translocation by a novel pharmacological approach (Glu-Pro-Glu (EPE) peptide), leading to an increase in cytosolic ERK phosphorylation during T helper (Th)17 cell differentiation...
September 15, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28914568/human-embryonic-stem-cell-derived-mesenchymal-stromal-cells-decrease-the-development-of-severe-experimental-autoimmune-uveitis-in-b10-riii-mice
#2
Yu Qin, Ann M Chan, Yu-Ling Chang, Anna Matynia, Nicholas A Kouris, Erin A Kimbrel, Negin Ashki, Sachin Parikh, Michael B Gorin, Robert Lanza, Ralph D Levinson, Lynn K Gordon
PURPOSE: We investigated the effect of exogenously administered human embryonic stem cell-derived mesenchymal stromal cells (hESC-MSCs) in experimental autoimmune uveitis (EAU) in B10.RIII mice, a murine model of severe uveitis. METHODS: B10.RIII mice were immunized with an uveitogenic peptide, and intraperitoneal injections of 5 million hESC-MSCs per animal were given on the same day. Behavioral light sensitivity assays, histological evaluation, cytokine production, and regulatory T cells were analyzed at the peak of the disease...
September 15, 2017: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/28903323/the-pancreatic-tumor-microenvironment-drives-changes-in-mirna-expression-that-promote-cytokine-production-and-inhibit-migration-by-the-tumor-associated-stroma
#3
Song Han, David H Gonzalo, Michael Feely, Daniel Delitto, Kevin E Behrns, Mark Beveridge, DongYu Zhang, Ryan Thomas, Jose G Trevino, Thomas D Schmittgen, Steven J Hughes
The pancreatic adenocarcinoma (PDAC) microenvironment is largely comprised of fibrotic tumor associated stroma (TAS) that contributes to the lethal biology of PDAC. microRNA (miRNA) are small non-coding RNAs that regulate gene expression. We hypothesized that interactions between PDAC cells and TAS cells within the microenvironment modulate miRNA expression and thus, tumor biology. We observed that miR-205 and members of the miR-200 family (miR-200a, -200b, -200c, -141 and miR-429) were exclusively expressed in PDAC cells, consistent with an epithelial miRNA signature, while miR-145 and miR-199 family members (miR-199a and -199b) were solely expressed in TAS cells, consistent with a stromal miRNA signature...
August 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28902848/the-effect-of-hiv-infection-and-hcv-viremia-on-inflammatory-mediators-and-hepatic-injury-the-women-s-interagency-hiv-study
#4
Sheila M Keating, Jennifer L Dodge, Philip J Norris, John Heitman, Stephen J Gange, Audrey L French, Marshall J Glesby, Brian R Edlin, Patricia S Latham, Maria C Villacres, Ruth M Greenblatt, Marion G Peters
Hepatitis C virus infection induces inflammation and while it is believed that HIV co-infection enhances this response, HIV control may reduce inflammation and liver fibrosis in resolved or viremic HCV infection. Measurement of systemic biomarkers in co-infection could help define the mechanism of inflammation on fibrosis and determine if HIV control reduces liver pathology. A nested case-control study was performed to explore the relationship of systemic biomarkers of inflammation with liver fibrosis in HCV viremic and/or seropositive women with and without HIV infection...
2017: PloS One
https://www.readbyqxmd.com/read/28901417/discrimination-of-the-heterogeneity-of-bone-marrow%C3%A2-derived-dendritic-cells
#5
Jing Wang, Xiaomin Dai, Chiaching Hsu, Changsheng Ming, Ying He, Ji Zhang, Lai Wei, Ping Zhou, Cong-Yi Wang, Jun Yang, Nianqiao Gong
The present study aimed to discriminate different subsets of cultured dendritic cells (DCs) to evaluate their immunological characteristics. DCs offer an important foundation for immunological studies, and mouse bone marrow (BM) cells cultured with granulocyte‑macrophage colony‑stimulating factor (GM‑CSF) have been used extensively to generate CD11c+/major histocompatibility complex II+ BM‑derived DCs (BMDCs). Immature DCs are considered to have strong migration and phagocytic antigen‑capturing abilities, whereas mature DCs are thought to activate naive T cells and express high levels of costimulatory cytokines and adhesion molecules...
September 8, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28900063/-translational-research-on-neuropsychiatric-disorders-focusing-on-microglia-hypothesis
#6
Takahiro A Kato, Masahiro Ohgidani, Shigenobu Kanba
Microglia-immune cells in the brain-have recently been highlighted to understand the pathophysiology of psychiatric disorders such as schizophrenia, depression, and autism. In this review paper, we introduce the microglia hypothesis for psychiatric disorders. In addition, we introduce our novel translational research approach to psychiatric disorders using microglia-like (iMG) cells directly induced from human blood, these iMG cells can be produced from peripheral monocytes within two weeks using two cytokines: granulocyte-macrophage colony-stimulating factor (GM-CSF) and interleukin-34 (IL-34)...
September 2017: Brain and Nerve, Shinkei Kenkyū No Shinpo
https://www.readbyqxmd.com/read/28899400/impact-of-combined-sodium-chloride-and-saturated-long-chain-fatty-acid-challenge-on-the-differentiation-of-t-helper-cells-in-neuroinflammation
#7
Anna Hammer, Anne Schliep, Stefanie Jörg, Aiden Haghikia, Ralf Gold, Markus Kleinewietfeld, Dominik N Müller, Ralf A Linker
BACKGROUND: There has been a marked increase in the incidence of autoimmune diseases like multiple sclerosis (MS) in the last decades which is most likely driven by a change in environmental factors. Here, growing evidence suggests that ingredients of a Western diet like high intake of sodium chloride (NaCl) or saturated fatty acids may impact systemic immune responses, thus increasing disease susceptibility. Recently, we have shown that high dietary salt or long-chain fatty acid (LCFA) intake indeed aggravates T helper (Th) cell responses and neuroinflammation...
September 12, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28898718/interleukin-17-regulates-shp-2-and-il-17ra-stat-3-dependent-cyr61-il-23-and-gm-csf-expression-and-rankl-mediated-osteoclastogenesis-by-fibroblast-like-synoviocytes-in-rheumatoid-arthritis
#8
Ramamoorthi Ganesan, Mahaboobkhan Rasool
Interleukin (IL)-17 predominately produced by the Th17 cells, plays a crucial role in the fibroblast-like synoviocytes (FLS) mediated disease process of rheumatoid arthritis (RA). IL-17 exerts its pathogenic effects in RA-FLS by IL-17/IL-17RA/STAT-3 signaling. Recent studies have shown that RA-FLS produces SHP-2, Cyr61, IL-23, GM-CSF and RANKL which results in worsening of the disease. However, whether IL-17/IL-17RA/STAT-3 signaling regulates SHP-2, Cyr61, IL-23, GM-CSF and RANKL expressions in RA-FLS remains unknown...
September 9, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28893229/neuroimmune-expression-in-hip-osteoarthritis-a-systematic-review
#9
Manuel Ribeiro da Silva, Daniela Linhares, Daniel Marques Vasconcelos, Cecilia Juliana Alves, Nuno Neves, Gilberto Costa, Meriem Lamghari
BACKGROUND: Neuroimmune axis is central in the physiopathology of hip osteoarthritis (OA), but its specific pathways are still unclear. This systematic review aims to assess the nervous and immune system profile of patients with hip osteoarthritis (OA) when compared to healthy controls. METHODS: A systematic review followed PRISMA guidelines was conducted. A two-step selection process was completed, and from 609 references 17 were included. The inclusion criteria were: original articles on adult patients with hip OA, with assessment of neuroimmune expression...
September 11, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28892414/efficacy-of-recombinant-adenovirus-expressing-a-fusion-gene-from-gm-csf-and-epstein-barr-virus-lmp2a-in-a-mouse-tumor-model
#10
Qingjie Xue, Xiuzheng Li, Chunqing Yang, Bingyuan Ji, Yunqing Li, Yingchun Yan, Xinxin Yang, Chunmei Wang, Ting Chen
In this study, purified GM-CSF and LMP2A mRNAs were amplified by PCR. Then, the GM-CSF and LMP2A sequences were connected by the polypeptide linker (Gly4Ser)3 using gene splicing by overlap extension. The constructed fusion gene GC2A was inserted into the adenovirus vector. Then the recombinant vector was introduced into HEK 293T cells by calcium phosphate transfection to package the adenovirus. The levels of antibodies against the GM-CSF and LMP2Afusion proteins were measured by ELISA, and the CTL activity of the mouse splenic lymphocytes was determined by lactate dehydrogenase (LDH) release assay...
September 11, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28890195/gk-1-peptide-reduces-tumor-growth-decreases-metastatic-burden-and-increases-survival-in-a-murine-breast-cancer-model
#11
D Torres-García, A Pérez-Torres, K Manoutcharian, U Orbe, R Servín-Blanco, G Fragoso, E Sciutto
GK-1 is a parasite-derived peptide adjuvant of 18 amino acid-length that enhances T-cell function and increases survival in B16-F10 melanoma tumor-bearing mice. This study was designed to evaluate in vivo the antitumor efficacy of GK-1 on 4T1 mouse mammary carcinoma. BALB/c mice with palpable primary tumors were weekly intravenously injected three times with saline solution or three different concentrations (10, 50, or 100μg per mouse) of GK-1. GK-1 significantly increased lifespan (p<0.0001) and reduced the primary tumor weight (p=0...
September 7, 2017: Vaccine
https://www.readbyqxmd.com/read/28889122/galectin-9-produced-by-intestinal-epithelial-cells-enhances-aldehyde-dehydrogenase-activity-in-dendritic-cells-in-a-pi3k-and-p38-dependent-manner
#12
Sander de Kivit, Atanaska I Kostadinova, JoAnn Kerperien, Veronica Ayechu Muruzabal, Mary E Morgan, Leon M J Knippels, Aletta D Kraneveld, Johan Garssen, Linette E M Willemsen
Intestinal epithelial cells (IEC) drive regulatory T cell (Treg) responses by promoting the differentiation of aldehyde dehydrogenase (ALDH)-expressing CD103+ dendritic cells (DC). Apical stimulation of TLR9 by CpG DNA on IEC supports galectin-9 expression by IEC, which is promoted by short-chain galacto-oligosaccharides and long-chain fructo-oligosaccharides (GF). While galectin-9 can induce the maturation of monocyte-derived DC (moDC), the contribution of galectin-9 on the induction of ALDH activity in DC is not known...
September 9, 2017: Journal of Innate Immunity
https://www.readbyqxmd.com/read/28886500/peripheral-proinflammatory-cytokines-in-chinese-patients-with-generalised-anxiety-disorder
#13
Zhen Tang, Gang Ye, Xinyun Chen, Mingzhi Pan, Jialin Fu, Tian Fu, Qichun Liu, Zhenyong Gao, David S Baldwin, Ruihua Hou
BACKGROUND: Inflammatory responses and inflammatory cytokines have been implicated in the pathogenesis of affective disorders, particularly major depression. Given the limited evidence relating to the potential role of proinflammatory cytokines in generalised anxiety disorder (GAD), we aimed to examine peripheral proinflammatory cytokines in Chinese patients with GAD. METHODS: A case-controlled cross-sectional study design, with recruitment of 48 patients with first episode GAD and 48 matched healthy controls...
August 31, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28884416/repeated-stress-exaggerates-lipopolysaccharide-induced-inflammatory-response-in-the-rat-spleen
#14
M Laukova, Peter Vargovic, I Rokytova, G Manz, R Kvetnansky
Spleen is an immune organ innervated with sympathetic nerves which together with adrenomedullary system control splenic immune functions. However, the mechanism by which prior stress exposure modulates the immune response induced by immunogenic challenge is not sufficiently clarified. Thus, the aim of this study was to investigate the effect of a single (2 h) and repeated (2 h daily for 7 days) immobilization stress (IMO) on the innate immune response in the spleen induced by lipopolysaccharide (LPS, 100 µg/kg)...
September 7, 2017: Cellular and Molecular Neurobiology
https://www.readbyqxmd.com/read/28878349/peptide-mediated-delivery-of-donor-mitochondria-improves-mitochondrial-function-and-cell-viability-in-human-cybrid-cells-with-the-melas-a3243g-mutation
#15
Jui-Chih Chang, Fredrik Hoel, Ko-Hung Liu, Yau-Huei Wei, Fu-Chou Cheng, Shou-Jen Kuo, Karl Johan Tronstad, Chin-San Liu
The cell penetrating peptide, Pep-1, has been shown to facilitate cellular uptake of foreign mitochondria but further research is required to evaluate the use of Pep-1-mediated mitochondrial delivery (PMD) in treating mitochondrial defects. Presently, we sought to determine whether mitochondrial transplantation rescue mitochondrial function in a cybrid cell model of mitochondrial myopathy, encephalopathy, lactic acidosis, and stroke-like episodes (MELAS) disease. Following PMD, recipient cells had internalized donor mitochondria after 1 h, and expressed higher levels of normal mitochondrial DNA, particularly at the end of the treatment and 11 days later...
September 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28869617/a-phase-1-trial-of-90-y-zevalin-radioimmunotherapy-with-autologous-stem-cell-transplant-for-multiple-myeloma
#16
A Dispenzieri, A D'Souza, M A Gertz, K Laumann, G Wiseman, M Q Lacy, B LaPlant, F Buadi, S R Hayman, S K Kumar, D Dingli, W J Hogan, S M Ansell, D A Gastineau, D J Inwards, I N Micallef, L F Porrata, P B Johnston, M R Litzow, T E Witzig
This phase 1 study (clinical trial NCT00477815) was conducted to determine the maximum tolerated dose (MTD) of yttrium-90 ibritumomab tiuxetan ((90)Y-Zevalin) with high dose melphalan (HDM) therapy in multiple myeloma (MM) patients undergoing autologous stem cell transplantation (ASCT). In a 3+3 trial design, 30 patients received rituximab 250 mg/m(2) with indium-111 ibritumomab tiuxetan ((111)In-Zevalin) for dosimetry (day -22); rituximab 250 mg/m(2) with escalating doses of (90)Y-Zevalin (day -14); melphalan 100 mg/m(2) (days -2,-1) followed by ASCT (day 0) and sargramostim (GM-CSF, day 0) until neutrophil engraftment...
September 4, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28868949/cytokine-profile-in-gingival-crevicular-fluid-and-plasma-of-patients-with-aggressive-periodontitis
#17
Hager R Zein Elabdeen, Manal Mustafa, Raouf Ali, Anne Isine Bolstad
OBJECTIVE: This study aimed to determine the content of cytokines in gingival crevicular fluid (GCF) as well as in plasma of Sudanese patients with aggressive periodontitis (AgP) and healthy controls (HC). MATERIALS AND METHODS: Nineteen AgP patients and 19 HC were included. The mean probing pocket depth and clinical attachment level of the GCF sampled sites in patients were both ≥5 mm. The GCF and plasma levels of 27 cytokines were determined using 27-multiplex fluorescent bead-based immunoassays...
September 3, 2017: Acta Odontologica Scandinavica
https://www.readbyqxmd.com/read/28865229/cytokine-profiles-of-dendritic-cells-dcs-during-infection-with-bovine-leukaemia-virus-blv
#18
E Iwan, M Szczotka, J Kocki
BLV is an agent of enzootic bovine leukaemia (EBL), an infectious disease affecting cattle worldwide. BLV infection has been associated with immune system disorders and discrepancies in the cytokine network. The significance of dendritic cells in the pathogenesis of BLV infection is largely unknown, but considering their fundamental role in immune response it may be crucial. DCs precursors were isolated with the use of immunomagnetic beads from BLV-infected and BLV-free cows. From these precursors cultures of monocyte derived dendritic cells (MoDCs) were generated with the use of a cytokine cocktail (IL-4 and GM-CSF)...
March 1, 2017: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/28861873/role-of-the-pregnancy-specific-glycoprotein-in-regulation-of-the-cytokine-and-chemokine-profiles-of-intact-mononuclear-cells
#19
M B Rayev, L S Litvinova, K A Yurova, N A Dunets, O G Khaziakhmatova, V P Timganova, M S Bochkova, P V Khramtsov, S A Zamorina
The effect of human pregnancy-specific glycoprotein (PSG) on the cytokine and chemokine production in vitro by intact mononuclear cells was studied by the method of flow fluorimetry. PSG inhibited production of the proinflammatory cytokines IL-6, IL-8, IL-17, IFN-γ, and TNF-α and chemokines CCL3/MIP-1α, CCL4/MIP-1β, CCL2/MCP-1; at the same time, PSG stimulated IL-12(p70) production. Simultaneously with increasing the VEGF level, PSG inhibited production of IL-9, IL-13, G-CSF, and GM-CSF. The PSG effect discovered can be interpreted as a contribution into the immune tolerance formation during pregnancy...
July 2017: Doklady Biological Sciences: Proceedings of the Academy of Sciences of the USSR, Biological Sciences Sections
https://www.readbyqxmd.com/read/28861450/data-describing-ifn%C3%AE-mediated-viral-clearance-in-an-adult-mouse-model-of-respiratory-syncytial-virus-rsv
#20
Katherine M Eichinger, Kerry M Empey
The data presented here are related to the research article entitled "Age predicts cytokine kinetics and innate immune cell activation following intranasal delivery of IFNγ and GM-CSF in a mouse model of RSV infection" (Eichinger et al., 2017) [1]. The cited manuscript demonstrated that the macrophage-stimulating cytokine, interferon gamma (IFNγ), but not granulocyte macrophage-colony stimulating factor (GM-CSF), effectively enhanced viral clearance in infant mice infected with respiratory syncytial virus (RSV) following intranasal delivery...
October 2017: Data in Brief
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