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https://www.readbyqxmd.com/read/29341339/immunomodulation-by-therapeutic-mesenchymal-stromal-cells-msc-is-triggered-through-phagocytosis-of-msc-by-monocytic-cells
#1
Samantha F H de Witte, Franka Luk, Jesus M Sierra Parraga, Madhu Gargesha, Ana Merino, Sander S Korevaar, Anusha S Shankar, Lisa O'Flynn, Steve J Elliman, Debashish Roy, Michiel G H Betjes, Philip N Newsome, Carla C Baan, Martin J Hoogduijn
Mesenchymal stem or stromal cells (MSC) are under investigation as a potential immunotherapy. MSC are usually administered via intravenous infusion, after which they are trapped in the lungs and die and disappear within a day. The fate of MSC after their disappearance from the lungs is unknown and it is unclear how MSC realize their immunomodulatory effects in their short lifespan. We examined immunological mechanisms determining the fate of infused MSC and the immunomodulatory response associated with it. Tracking viable and dead human umbilical cord MSC (ucMSC) in mice using Qtracker beads (contained in viable cells) and Hoechst33342 (staining all cells) revealed that viable ucMSC were present in the lungs immediately after infusion...
January 17, 2018: Stem Cells
https://www.readbyqxmd.com/read/29341132/acanthoic-acid-suppresses-lipin1-2-via-tlr4-and-irak4-signalling-pathways-in-etoh-and-lipopolysaccharide-induced-hepatic-lipogenesis
#2
Jian Song, Xin Han, You-Li Yao, Ya-Mei Li, Jing Zhang, Dan-Yang Shao, Li-Shuang Hou, Ying Fan, Shun-Zong Song, Li-Hua Lian, Ji-Xing Nan, Yan-Ling Wu
OBJECTIVES: In alcoholic liver disease, alcohol and lipopolysaccharide (LPS) are major stimulation factors of hepatic lipogenesis. Our objective was to determine the protective mechanism of acanthoic acid (AA) in EtOH- and LPS-induced hepatic lipogenesis. METHODS: HSC-T6 cells were treated with ethanol (200 mm) plus LPS (1 μg/ml) for 1 h, followed by AA (10 or 20 μm) for another 6 h. C57BL/6 mice were pretreated with of AA (20 and 40 mg/kg) or equal volume of saline and then exposed to three doses of ethanol (5 g/kg body weight) within 24 h...
January 17, 2018: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/29337678/salivary-scd14-as-a-potential-biomarker-of-dental-caries-activity-in-adults
#3
Ljerka Prester, Nives Protrka, Jelena Macan, Marina Katunarić
CD14 is a co-receptor involved in the recognition of Gram-negative and Gram-positive bacteria, the latter known to cause dental caries. The aim of this study was to determine whether soluble CD14 (sCD14) in saliva was associated with caries activity and the collection method from the saliva. The study included 55 participants aged 20 to 40 years, 30 with dental caries and 25 caries-free controls. We collected 110 saliva samples in total, 55 of resting saliva and 55 of mechanically stimulated saliva. Median levels of sCD14, measured with a matrix-matched enzyme-linked immunosorbent assay (ELISA), were higher in the caries-active than in the caries-free group in either resting (203...
December 20, 2017: Arhiv za Higijenu Rada i Toksikologiju
https://www.readbyqxmd.com/read/29335601/loss-of-cd14-leads-to-disturbed-epithelial-b-cell-crosstalk-and-impairment-of-the-intestinal-barrier-after-e-coli-nissle-monoassociation
#4
Marijana Basic, Manuela Buettner, Lydia M Keubler, Anna Smoczek, Inga Bruesch, Stephanie Buchheister, André Bleich
The TLR4 co-receptor CD14 was identified as an IBD candidate gene. Here, its influence on the intestinal barrier was addressed utilizing E. coli Nissle (EcN), which induces severe inflammation in germfree TLR4-/- mice. After monoassociation, EcN was detected in spleens and livers of TLR4-/- and CD14-/- but not wildtype mice. Barrier impairment was characterized by increased apoptosis and decreased epithelial junction (EJ) expression and was reversed by TLR2 stimulation in CD14-/- mice. Bone marrow (BM) transplantation revealed contribution of hematopoietic and non-hematopoietic cells towards intestinal homeostasis...
January 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29334613/reduced-mir-144-3p-expression-in-serum-and-bone-mediates-osteoporosis-pathogenesis-by-targeting-rank
#5
Chunqing Wang, Hanliang He, Yu Jiang, Liang Wang, Youjia Xu
Osteoblasts and osteoclasts are responsible for the formation and resorption of bone, respectively. An imbalance between these two processes results in a disease called osteoporosis, in which a decreased level of bone strength increases the risk of a bone fracture. MicroRNAs (miRNAs) are small non-coding RNA molecules of 18-25 nucleotides that have been previously shown to control bone metabolism by regulating osteoblast and osteoclast differentiation. In the present study, we detected the expression pattern of 10 miRNAs in patient serum samples, and identified six miRNAs altered expression in patients with osteoporosis relative to non-osteoporosis...
January 15, 2018: Biochemistry and Cell Biology, Biochimie et Biologie Cellulaire
https://www.readbyqxmd.com/read/29333574/unique-metabolic-activation-of-adipose-tissue-macrophages-in-obesity-promotes-inflammatory-responses
#6
Lily Boutens, Guido J Hooiveld, Sourabh Dhingra, Robert A Cramer, Mihai G Netea, Rinke Stienstra
AIMS/HYPOTHESIS: Recent studies have identified intracellular metabolism as a fundamental determinant of macrophage function. In obesity, proinflammatory macrophages accumulate in adipose tissue and trigger chronic low-grade inflammation, that promotes the development of systemic insulin resistance, yet changes in their intracellular energy metabolism are currently unknown. We therefore set out to study metabolic signatures of adipose tissue macrophages (ATMs) in lean and obese conditions...
January 14, 2018: Diabetologia
https://www.readbyqxmd.com/read/29323435/soluble-cd14-levels-in-plasma-and-breastmilk-of-malawian-hiv-women-lack-of-association-with-morbidity-and-mortality-in-their-exposed-infants
#7
Silvia Baroncelli, Clementina M Galluzzo, Giuseppe Liotta, Mauro Andreotti, Fausto Ciccacci, Sandro Mancinelli, Victor T Tolno, Jane Gondwe, Roberta Amici, Maria C Marazzi, Stefano Vella, Marina Giuliano, Leonardo Palombi, Lucia Palmisano
PROBLEM: Data on soluble CD14 (sCD14) during pregnancy and lactation are scarce. We assessed the levels of sCD14 in plasma and breastmilk of Malawian HIV-positive women and evaluated the possible association with morbidity and mortality in the HIV-exposed children. METHOD OF STUDY: One hundred and forty-nine mother/child pairs were studied. Women received antiretroviral therapy from 26 weeks of gestation to at least 6 months of exclusive breastfeeding. sCD14 concentrations were determined using an enzyme-linked immunosorbent assay...
January 11, 2018: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/29321042/type-i-ifn-signature-in-childhood-onset-systemic-lupus-erythematosus-a-conspiracy-of-dna-and-rna-sensing-receptors
#8
M Javad Wahadat, Iris L A Bodewes, Naomi I Maria, Cornelia G van Helden-Meeuwsen, Annette van Dijk-Hummelman, Eline C Steenwijk, Sylvia Kamphuis, Marjan A Versnel
BACKGROUND: Childhood-onset systemic lupus erythematosus (cSLE) is an incurable multi-systemic autoimmune disease. Interferon type I (IFN-I) plays a pivotal role in the pathogenesis of SLE. The objective of this study was to assess the prevalence of the IFN-I signature and the contribution of cytosolic nucleic acid receptors to IFN-I activation in a cohort of primarily white cSLE patients. METHODS: The IFN-I score (positive or negative), as a measure of IFN-I activation, was assessed using real-time quantitative PCR (RT-PCR) expression values of IFN-I signature genes (IFI44, IFI44L, IFIT1, Ly6e, MxA, IFITM1) in CD14+ monocytes of cSLE patients and healthy controls (HCs)...
January 10, 2018: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/29318480/rosmarinic-acid-mitigates-lipopolysaccharide-induced-neuroinflammatory-responses-through-the-inhibition-of-tlr4-and-cd14-expression-and-nf-%C3%AE%C2%BAb-and-nlrp3-inflammasome-activation
#9
Yicong Wei, Jianxiong Chen, Yonghong Hu, Wei Lu, Xiaoqin Zhang, Ruiguo Wang, Kedan Chu
The excessive activation of microglia plays a key role in the pathogenesis of neurodegenerative diseases. The neuroprotective properties of rosmarinic acid have been reported in a variety of disease models both in vitro and in vivo; however, the mechanism underlying its anti-neuroinflammatory activity has not been clearly elucidated. In the present study, we evaluated the anti-inflammatory effects of rosmarinic acid in conditions of neuroinflammatory injury in vitro and in vivo. The results indicated that rosmarinic acid reduced the expression of CD11b, a marker of microglia and macrophages, in the brain and dramatically inhibited the levels of inflammatory cytokines and mediators, such as TNFα, IL-6, IL-1β, COX-2, and iNOS, in a dose-dependent manner both in vitro and in vivo...
January 9, 2018: Inflammation
https://www.readbyqxmd.com/read/29314605/transcriptome-profiling-of-peripheral-blood-immune-cell-populations-in-multiple-sclerosis-patients-before-and-during-treatment-with-a-sphingosine-1-phosphate-receptor-modulator
#10
Ines C Angerer, Michael Hecker, Dirk Koczan, Luisa Roch, Jörg Friess, Annelen Rüge, Brit Fitzner, Nina Boxberger, Ina Schröder, Kristin Flechtner, Hans-Jürgen Thiesen, Alexander Winkelmann, Stefanie Meister, Uwe K Zettl
AIMS: Fingolimod is a sphingosine-1-phosphate (S1P) receptor modulator approved for the treatment of the relapsing form of multiple sclerosis (MS). It prevents the egress of lymphocyte subpopulations from lymphoid tissues into the circulation. Here, we explored the broad effects of fingolimod on gene expression in different immune cell subsets. METHODS: Utilizing 150 high-resolution microarrays from Affymetrix, we obtained the transcriptome profiles of 5 cell populations, which were separated from the peripheral blood of MS patients prior to and following oral administration of fingolimod...
January 3, 2018: CNS Neuroscience & Therapeutics
https://www.readbyqxmd.com/read/29313959/cardiolipin-activates-antigen-presenting-cells-via-tlr2-pi3k-pkn1-akt-p38-nf-kb-signaling-to-prime-antigen-specific-na%C3%A3-ve-t-cells-in-mice
#11
Jung-Ah Cho, Tae-Joo Kim, Hye-Jung Moon, Young-Joo Kim, Hye-Kyung Yoon, Seung-Yong Seong
Mitochondrial defects and anti-mitochondrial cardiolipin (CL) antibodies are frequently detected in autoimmune disease patients. CL from dysregulated mitochondria activates various pattern recognition receptors, such as NLRP3. However, the mechanism by which mitochondrial CL activates antigen-presenting cells (APCs) as a damage-associated molecular pattern to prime antigen-specific naïve T cells, which is crucial for T-cell-dependent anti-cardiolipin IgG antibody production in autoimmune diseases is unelucidated...
January 4, 2018: European Journal of Immunology
https://www.readbyqxmd.com/read/29313268/trajectories-of-circulating-monocyte-subsets-after-st-elevation-myocardial-infarction-during-hospitalization-latent-class-growth-modeling-for-high-risk-patient-identification
#12
Shan Zeng, Li-Fang Yan, Yan-Wei Luo, Xin-Lin Liu, Jun-Xiang Liu, Zhao-Zeng Guo, Zhong-Wei Xu, Yu-Ming Li, Wen-Jie Ji, Xin Zhou
It remains unclear if the developmental trajectories of a specific inflammatory biomarker during the acute phase of ST-elevation myocardial infarction (STEMI) provide outcome prediction. By applying latent class growth modeling (LCGM), we identified three distinctive trajectories of CD14++CD16+ monocytes using serial flow cytometry assays from day 1 to day 7 of symptom onset in 96 de novo STEMI patients underwent primary percutaneous coronary intervention. Membership in the high-hump-shaped trajectory (16.8%) independently predicted adverse cardiovascular outcomes during a median follow-up of 2...
January 8, 2018: Journal of Cardiovascular Translational Research
https://www.readbyqxmd.com/read/29313060/an-md2-derived-peptide-promotes-lps-aggregation-facilitates-its-internalization-in-thp-1-cells-and-inhibits-lps-induced-pro-inflammatory-responses
#13
Anshika Tandon, Munesh Kumar Harioudh, Nayab Ishrat, Amit Kumar Tripathi, Saurabh Srivastava, Jimut Kanti Ghosh
MD2, a 160-residue accessory glycoprotein, is responsible for the recognition and binding of Gram-negative bacterial membrane component, lipopolysaccharide (LPS). Internalization of pathogen inside the mononuclear phagocytes has also been attributed to MD2 which leads to the clearance of pathogens from the host. However, not much is known about the segments in MD2 that are responsible for LPS interaction or internalization of pathogen inside the defense cells. A 16-residue stretch (MD54) from MD2 protein has been identified that possesses a short heptad repeat sequence and four cationic residues enabling it to participate in both hydrophobic and electrostatic interactions with LPS...
January 8, 2018: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/29311360/myeloid-derived-suppressor-cells-mediate-inflammation-resolution-in-humans-and-mice-with-autoimmune-uveoretinitis
#14
Hyun Jeong Jeong, Hyun Ju Lee, Jung Hwa Ko, Bum-Joo Cho, Se Yeon Park, Jong Woo Park, Se Rang Choi, Jang Won Heo, Sun-Ok Yoon, Joo Youn Oh
Resolution of inflammation is an active process that leads to tissue homeostasis and involves multiple cellular and molecular mechanisms. Myeloid-derived suppressor cells (MDSCs) have recently emerged as important cellular components in the resolution of inflammation because of their activities to suppress T cell activation. In this article, we show that HLA-DR-CD11b+CD33+CD14+ human MDSCs and CD11b+Ly6G-Ly6C+ mouse MDSCs markedly increased in patients and mice during and before the resolution phase of autoimmune uveoretinitis...
January 8, 2018: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29311239/induction-of-il-10-by-borrelia-burgdorferi-is-regulated-by-the-action-of-cd14-dependent-p38-mapk-and-camp-mediated-chromatin-remodeling
#15
Bikash Sahay, Kathleen Bashant, Nicole J Nelson, Rebeca L Patsey, Shiva Kumar Gadila, Rebecca Boohaker, Ashutosh Verma, Klemen Strle, Timothy J Sellati
Host genotype influences the severity of murine Lyme borreliosis, caused by the spirochetal bacterium Borrelia burgdorferi C57BL/6 (B6) mice develop mild, whereas C3H/HeN (C3H) mice develop severe Lyme arthritis. Differential expression of interleukin 10 (IL-10) has long been associated with mouse strain differences in Lyme pathogenesis; however, the underlying mechanism(s) of this genotype-specific IL-10 regulation remained elusive. Herein we reveal a cAMP-mediated mechanism of IL-10 regulation in B6 macrophages that is substantially diminished in C3H macrophages...
January 8, 2018: Infection and Immunity
https://www.readbyqxmd.com/read/29310959/increased-expression-of-t-cell-immunoglobulin-and-mucin-domain-3-on-cd14-monocytes-is-associated-with-systemic-inflammatory-reaction-and-brain-injury-in-patients-with-spontaneous-intracerebral-hemorrhage
#16
ChangJun Xu, HaiTao Ge, Tao Wang, JianBing Qin, De Liu, YuGuang Liu
OBJECTIVE: To study the expression of T cell immunoglobulin and mucin domain 3 (Tim-3) on peripheral blood immunocytes, and the relationship between Tim-3 and the systemic inflammatory response or brain injury in patients with intracerebral hemorrhage (ICH). METHODS: According to the volume of hematoma at 12 hours after onset of ICH, 60 newly diagnosed patients with ICH were divided into the small (volume of hematoma <30 mL, 30 cases) and large (volume of hematoma ≥30 mL, 30 cases) ICH groups...
January 5, 2018: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/29310912/monocyte-activation-detected-prior-to-a-diagnosis-of-schizophrenia-in-the-us-military-new-onset-psychosis-project-mnopp
#17
Natalya S Weber, Kristin L Gressitt, David N Cowan, David W Niebuhr, Robert H Yolken, Emily G Severance
Low-grade inflammation is present in some cases of schizophrenia, particularly in the early stages of this disorder. The inflammation source is not known but may be the result of dysbiotic processes occurring in the gut. We examined peripheral biomarkers of bacterial translocation, soluble CD14 (sCD14) and lipopolysaccharide binding protein (LBP), and of general inflammation, C-reactive protein (CRP), in a unique, pre-onset study of schizophrenia. This sample was composed of 80 case-control matched pairs of US military service members from whom blood samples were obtained at time of entry to service, before a psychiatric diagnosis was made...
January 5, 2018: Schizophrenia Research
https://www.readbyqxmd.com/read/29306950/immune-consequences-of-in-vitro-infection-of-human-peripheral-blood-leukocytes-with-vesicular-stomatitis-virus
#18
Tomasz Tomczyk, Grażyna Wróbel, Radosław Chaber, Iwona Siemieniec, Egbert Piasecki, Małgorzata Krzystek-Korpacka, Beata U Orzechowska
BACKGROUND: Oncolytic vesicular stomatitis virus (VSV) can be delivered intravenously to target primary and metastatic lesions, but the interaction between human peripheral blood leukocytes (PBLs) and VSV remains poorly understood. Our study aimed to assess the overall immunological consequences of ex vivo infection of PBLs with VSV. METHODS: Phenotypic analysis of lymphocyte subsets and apoptosis were evaluated with flow cytometry. Caspase 3/7 activity was detected by luminescence assay...
January 6, 2018: Journal of Innate Immunity
https://www.readbyqxmd.com/read/29304136/effect-of-intensive-multifactorial-treatment-on-vascular-progenitor-cells-in-hypertensive-patients
#19
Charbel Maroun-Eid, Adriana Ortega-Hernández, Javier Modrego, María Abad-Cardiel, José Antonio García-Donaire, Leonardo Reinares, Nieves Martell-Claros, Dulcenombre Gómez-Garre
BACKGROUND: Most hypertensive patients, despite a proper control of their cardiovascular risk factors, have cardiovascular complications, evidencing the importance of controlling and/or reversing target-organ damage. In this sense, endothelial dysfunction has been associated with the presence of cardiovascular risk factors and related cardiovascular outcomes. Since hypertension often clusters with other risk factors such as dyslipemia, diabetes and obesity, in this study we have investigated the effect of intensive multifactorial treatment on circulating vascular progenitor cell levels on high-risk hypertensive patients...
2018: PloS One
https://www.readbyqxmd.com/read/29299748/association-of-col4a1-rs605143-rs565470-and-cd14-rs2569190-genes-polymorphism-with-coronary-artery-disease
#20
Syed Tasleem Raza, Shania Abbas, Ale Eba, Fazal Karim, Irshad Ahmad Wani, Saliha Rizvi, Alina Zaidi, Farzana Mahdi
Coronary artery disease (CAD) is the leading cause of death worldwide and it is basically caused by atherosclerosis. The atherosclerotic process includes complex events and each one involves a specific biological pathway and different genes. According to World Health Organization report, Cardiovascular diseases will be the largest cause of death and disability by 2020, with an estimated 2.6 million Indians predicted to die due to CAD predominantly with myocardial infarction. Genetic factors are estimated to contribute 30-60% of the CAD risk...
January 3, 2018: Molecular and Cellular Biochemistry
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