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https://www.readbyqxmd.com/read/29150960/epithelial-cell-adhesion-molecule-fragments-and-signaling-in-primary-human-liver-cells
#1
Jörg C Gerlach, Hubert G Foka, Robert L Thompson, Bruno Gridelli, Eva Schmelzer
Epithelial Cell Adhesion Molecule (EpCAM), or CD326, is a trans-membrane glycoprotein expressed by multiple normal epithelia as well as carcinoma. Human hepatic stem cells and bile duct epithelium of the liver are EpCAM positive. In tumor cell lines, its intracellular domain can be released after cleavage of the extracellular domain. Within the cell nucleus it induces cell proliferation, but cleavage depends on cell contact. Fragments of various lengths have been described in tumor cells. Despite of its described important role in proliferation in tumor cells, there is not much known about the expression and role of EpCAM fragments in primary human liver cells...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150735/glycomics-of-human-embryonic-stem-cells-and-human-induced-pluripotent-stem-cells
#2
REVIEW
Jun-Ichi Furukawa, Kazue Okada, Yasuro Shinohara
Most cells are coated by a dense glycocalyx composed of glycoconjugates such as glycosphingolipids, glycoproteins, and proteoglycans. The overall glycomic profile is believed to be crucial for the diverse roles of glycans, which are mediated by specific interactions that regulate cell-cell adhesion, the immune response, microbial pathogenesis, and other cellular events. Many cell surface markers were discovered and identified as glycoconjugates such as stage-specific embryonic antigen, Tra-1-60/81 and various other cell surface molecules (e...
November 18, 2017: Glycoconjugate Journal
https://www.readbyqxmd.com/read/29150602/tlr7-mediated-viral-recognition-results-in-focal-type-i-interferon-secretion-by-dendritic-cells
#3
Shin-Ichiroh Saitoh, Fumiko Abe, Atsuo Kanno, Natsuko Tanimura, Yoshiko Mori Saitoh, Ryutaro Fukui, Takuma Shibata, Katsuaki Sato, Takeshi Ichinohe, Mayumi Hayashi, Kazuishi Kubota, Hiroko Kozuka-Hata, Masaaki Oyama, Yorifumi Kikko, Toshiaki Katada, Kenji Kontani, Kensuke Miyake
Plasmacytoid dendritic cells (pDC) sense viral RNA through toll-like receptor 7 (TLR7), form self-adhesive pDC-pDC clusters, and produce type I interferons. This cell adhesion enhances type I interferon production, but little is known about the underlying mechanisms. Here we show that MyD88-dependent TLR7 signaling activates CD11a/CD18 integrin to induce microtubule elongation. TLR7(+) lysosomes then become linked with these microtubules through the GTPase Arl8b and its effector SKIP/Plekhm2, resulting in perinuclear to peripheral relocalization of TLR7...
November 17, 2017: Nature Communications
https://www.readbyqxmd.com/read/29150280/nk-cell-recruitment-and-exercise-potential-immunotherapeutic-role-of-shear-stress-and-endothelial-health
#4
William Evans
Positive cancer patient outcomes, including increased time to recurrent events, have been associated with increased counts and function of natural killer (NK) cells. NK cell counts and function are elevated following acute exercise, and the generally accepted mechanism of increased recruitment suggests that binding of epinephrine releases NK cells from endothelial tissue via decreases in adhesion molecules following. I propose that blood flow-induced shear stress may also play a role in NK cell recruitment from the endothelium...
November 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/29149821/statins-therapy-for-connective-tissue-diseases-new-therapeutic-opportunities
#5
Przemyslaw J Kotyla, Eugene J Kucharz
Background and Objective Statins, 3-hydroxyl-3-methyl-glutharyl Coenzyme A reductase inhibitors showed their therapeutic potential in the treatment of atherosclerosis-related diseases. Recently, the properties of statins, separate from their lipid lowering activity have attracted much attention. These properties that cover a wide area of physiopathological activities including cell maturation, immune response regulation, tissue fibrosis, endothelial activity and are called pleiotropic activity. Many in vitro studies demonstrated significant, statins-dependent regulation of immune system reactivity, reduction of pro-inflammatory and pro-fibrotic cytokines as well as suppression of endothelial activity and damage...
November 15, 2017: Endocrine, Metabolic & Immune Disorders Drug Targets
https://www.readbyqxmd.com/read/29149532/exploitation-of-micrornas-by-japanese-encephalitis-virus-in-human-microglial-cells
#6
Meghana Rastogi, Neha Srivastava, Sunit K Singh
JEV infection in CNS leads to the JE neuroinflammation. Children and old age individual have been reported to be more prone to JEV infection. MicroRNAs are endogenous, small non-coding RNAs, which regulate the gene expression. These are ∼22 nucleotide long, conserved RNA sequence that binds at the 3'UTR of a target mRNA and regulate the post-transcriptional gene expression. The role of microRNAs has been reported in several diseases like cancer, viral infection, neuro-degeneration, diabetes etc. In the present study, the human microglial cells were infected with JEV (JaOAr strain)...
November 17, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/29148754/eurycomalactone-inhibits-expression-of-endothelial-adhesion-molecules-at-a-post-transcriptional-level
#7
Clemens Malainer, Daniel Schachner, Enrico Sangiovanni, Atanas G Atanasov, Stefan Schwaiger, Hermann Stuppner, Elke H Heiss, Verena M Dirsch
The C-19 quassinoid eurycomalactone (1) has recently been shown to be a potent (IC50 = 0.5 μM) NF-κB inhibitor in a luciferase reporter model. In this study, we show that 1 with similar potency inhibited the expression of the NF-κB-dependent target genes ICAM-1, VCAM-1, and E-selectin in TNFα-activated human endothelial cells (HUVECtert) by flow cytometry experiments. Surprisingly, 1 (2 μM) did not inhibit TNFα-induced IKKα/β or IκBα phosphorylation significantly. Also, the TNFα-induced degradation of IκBα remained unchanged in response to 1 (2 μM)...
November 17, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/29148537/adenomatoid-tumors-of-the-male-and-female-genital-tract-are-defined-by-traf7-mutations-that-drive-aberrant-nf-kb-pathway-activation
#8
Benjamin Goode, Nancy M Joseph, Meredith Stevers, Jessica Van Ziffle, Courtney Onodera, Eric Talevich, James P Grenert, Iwei Yeh, Boris C Bastian, Joanna J Phillips, Karuna Garg, Joseph T Rabban, Charles Zaloudek, David A Solomon
Adenomatoid tumors are the most common neoplasm of the epididymis, and histologically similar adenomatoid tumors also commonly arise in the uterus and fallopian tube. To investigate the molecular pathogenesis of these tumors, we performed genomic profiling on a cohort of 31 adenomatoid tumors of the male and female genital tracts. We identified that all tumors harbored somatic missense mutations in the TRAF7 gene, which encodes an E3 ubiquitin ligase belonging to the family of tumor necrosis factor receptor-associated factors (TRAFs)...
November 17, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/29147716/complex-coacervation-of-mg-ii-phospho-polymethacrylate-a-synthetic-analog-of-sandcastle-worm-adhesive-phosphoproteins
#9
In Taek Song, Russell J Stewart
The highly phosphorylated Pc3 proteins, major components of the sandcastle worm adhesive, are sequestered with Mg as spherical sub-granules within heterogeneous secretory granules in adhesive gland cells. The phase behavior of a synthetic phospho-polymethacrylate analog of the Pc3 phosphoproteins, in the presense of Mg(ii), was characterized to determine whether it is chemically possible for the natural adhesive components to be packaged and stored as liquid complex coacervates. Of several multivalent metal salts tested, only MgCl induced complex coacervation of the phospho-copolymer...
November 17, 2017: Soft Matter
https://www.readbyqxmd.com/read/29145462/circulating-soluble-endoglin-modifies-the-inflammatory-response-in-mice
#10
Laura Ruiz-Remolina, Claudia Ollauri-Ibáñez, Lucía Pérez-Roque, Elena Núñez-Gómez, Fernando Pérez-Barriocanal, José Miguel López-Novoa, Miguel Pericacho, Alicia Rodríguez-Barbero
Inflammation is associated with every health condition, and is an important component of many pathologies such as cardiovascular diseases. Circulating levels of soluble endoglin have been shown to be higher in the serum of patients with cardiovascular diseases with a significant inflammatory component. The aim of this study was to evaluate the implication of circulating soluble endoglin in the inflammatory response. For this purpose, a transgenic mouse expressing human soluble endoglin (sEng+) was employed, and three different inflammatory approaches were used to mimic inflammatory conditions in different tissues...
2017: PloS One
https://www.readbyqxmd.com/read/29144966/gabaergic-synaptogenesis-a-case-for-cooperation
#11
Jean-Marc Fritschy, Shiva K Tyagarajan
Multiple cell-adhesion molecules contribute to synapse formation by mediating trans-synaptic interactions with presynaptic signaling molecules. In this issue of Neuron, Li et al. (2017) report cooperativity between Neuroligin2 and Slitrk3, exerting distinct effects on GABAergic synapse formation in immature and mature neurons.
November 15, 2017: Neuron
https://www.readbyqxmd.com/read/29144506/soluble-p-selectin-promotes-retinal-ganglion-cell-survival-through-activation-of-nrf2-signaling-after-ischemia-injury
#12
Kishan Kapupara, Yao-Tseng Wen, Rong-Kung Tsai, Shun-Ping Huang
Retinal ischemic injuries play an important role in the pathogenesis of several eye disorders. Inflammation and oxidative stress are key players in ischemic injuries. Following retinal ischemia, vascular endothelial cells and leukocytes express several inflammatory adhesion receptors, such as selectins and cell adhesion molecules. P-selectin stimulates leukocyte recruitment to platelet aggregates and has an important role in vascular homeostasis and inflammatory leukocyte extravasation. Soluble P-selectin can be neuroprotective through competitive binding to the receptors of endogenous P-selectin molecules...
November 16, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/29142905/p-cadherin-cdh3-is-overexpressed-in-colorectal-tumors-and-has-potential-as-a-serum-marker-for-colorectal-cancer-monitoring
#13
H M C Shantha Kumara, Geoffrey A Bellini, Otavia L Caballero, Sonali A C Herath, Tao Su, Aqeel Ahmed, Linda Njoh, Vesna Cekic, Richard L Whelan
Introduction: Placental-Cadherin (CDH3) is a cell adhesion molecule vital to cellular localization and tissue integrity. It is highly expressed in the placenta (PLC)and is overexpressed by many types of cancer. P-cadherin levels in colorectal cancer (CRC) remains poorly characterized. This study's purpose was to determine P-cadherin expression in CRC and normal tissues and to assess plasma CDH3 levels in order to determine the relationship, if any, between cancer stage, P-cadherin expression and plasma CDH3 levels...
September 2017: Oncoscience
https://www.readbyqxmd.com/read/29142418/marantodes-pumilum-blume-kuntze-inhibited-secretion-of-lipopolysaccharide-and-monosodium-urate-crystal-stimulated-cytokines-and-plasma-prostaglandin-e2
#14
Eldiza Puji Rahmi, Jamia Azdina Jamal, Endang Kumolosasi, Juriyati Jalil, Nor-Ashila Aladdin
Background: Marantodes pumilum is traditionally used for dysentery, gonorrhea, and sickness in the bones. Previous studies revealed its antibacterial and xanthine oxidase inhibitory activities. Objective: To evaluate the inhibitory effects of three M. pumilum varieties on the secretion of lipopolysaccharide (LPS)- and monosodium urate crystal (MSU)-induced cytokines and plasma prostaglandin E2 (PGE2) in vitro. Materials and Methods: The leaves and roots of M...
October 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/29141957/adherent-invasive-escherichia-coli-in-inflammatory-bowel-disease
#15
REVIEW
Carolina Palmela, Caroline Chevarin, Zhilu Xu, Joana Torres, Gwladys Sevrin, Robert Hirten, Nicolas Barnich, Siew C Ng, Jean-Frederic Colombel
Intestinal microbiome dysbiosis has been consistently described in patients with IBD. In the last decades, Escherichia coli, and the adherent-invasive E coli (AIEC) pathotype in particular, has been implicated in the pathogenesis of IBD. Since the discovery of AIEC, two decades ago, progress has been made in unravelling these bacteria characteristics and its interaction with the gut immune system. The mechanisms of adhesion of AIEC to intestinal epithelial cells (via FimH and cell adhesion molecule 6) and its ability to escape autophagy when inside macrophages are reviewed here...
November 15, 2017: Gut
https://www.readbyqxmd.com/read/29141864/il-1%C3%AE-induces-pathologically-activated-osteoclasts-bearing-extremely-high-levels-of-resorbing-activity-a-possible-pathological-subpopulation-of-osteoclasts-accompanied-by-suppressed-expression-of-kindlin-3-and-talin-1
#16
Takuma Shiratori, Yukari Kyumoto-Nakamura, Akiko Kukita, Norihisa Uehara, Jingqi Zhang, Kinuko Koda, Mako Kamiya, Tamer Badawy, Erika Tomoda, Xianghe Xu, Takayoshi Yamaza, Yasuteru Urano, Kiyoshi Koyano, Toshio Kukita
As osteoclasts have the central roles in normal bone remodeling, it is ideal to regulate only the osteoclasts performing pathological bone destruction without affecting normal osteoclasts. Based on a hypothesis that pathological osteoclasts form under the pathological microenvironment of the bone tissues, we here set up optimum culture conditions to examine the entity of pathologically activated osteoclasts (PAOCs). Through searching various inflammatory cytokines and their combinations, we found the highest resorbing activity of osteoclasts when osteoclasts were formed in the presence of M-CSF, receptor activator of NF-κB ligand, and IL-1β...
November 15, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29141644/lipopolysaccharide-pretreatment-increases-protease-activated-receptor-2-expression-and-monocyte-chemoattractant-protein-1-secretion-in-vascular-endothelial-cells
#17
Hung-Hsing Chao, Po-Yuan Chen, Wen-Rui Hao, Wei-Ping Chiang, Tzu-Hurng Cheng, Shih-Hurng Loh, Yuk-Man Leung, Ju-Chi Liu, Jin-Jer Chen, Li-Chin Sung
BACKGROUND: This study investigated whether lipopolysaccharide (LPS) increase protease-activated receptor-2 (PAR-2) expression and enhance the association between PAR-2 expression and chemokine production in human vascular endothelial cells (ECs). METHODS: The morphology of ECs was observed through microphotography in cultured human umbilical vein ECs (EA. hy926 cells) treated with various LPS concentrations (0, 0.25, 0.5, 1, and 2 μg/mL) for 24 h, and cell viability was assessed using the MTT assay...
November 15, 2017: Journal of Biomedical Science
https://www.readbyqxmd.com/read/29141533/targeting-cancer-stem-cells-and-non-stem-cancer-cells-the-potential-of-lipid-based-nanoparticles
#18
Ana Filipa Cruz, Nuno Andre Fonseca, Vera Moura, Sergio Simoes, Joao Nuno Moreira
Background Cancer stem cells (CSCs) have been described as a relevant contributor to tumorigenicity, metastasis, tumor recurrence and drug resistance, making this cell population a relevant target in solid tumors. METHODS: This has stimulated the development of different therapeutic strategies often targeting surface markers (CD44, epithelial cell adhesion molecule (EpCAM), aldehyde dehydrogenase (ALDH) and nucleolin) and/or signaling pathways that are aberrantly activated and contribute to CSCs proliferation and survival...
November 14, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/29141179/formation-of-longitudinal-axon-pathways-in-caenorhabditis-elegans
#19
REVIEW
Harald Hutter
The small number of neurons and the simple architecture of the Caenorhabditis elegans (C. elegans) nervous system enables researchers to study axonal pathfinding at the level of individually identified axons. Axons in C. elegans extend predominantly along one of the two major body axes, the anterior-posterior axis and the dorso-ventral axis. This review will focus on axon navigation along the anterior-posterior axis, leading to the establishment of the longitudinal axon tracts, with a focus on the largest longitudinal axon tract, the ventral nerve cord (VNC)...
November 12, 2017: Seminars in Cell & Developmental Biology
https://www.readbyqxmd.com/read/29140729/gene-expression-and-gene-associations-during-the-development-of-heart-failure-with-preserved-ejection-fraction-in-the-dahl-salt-sensitive-model-of-hypertension
#20
Jeffrey Yim, Hyokeun Cho, Simon W Rabkin
Gene expression and associations were examined in a model of heart failure with preserved ejection fraction (HFpEF), a condition with minimal effective treatment. Genes with at least two studies showing significant changes in Dahl rat with heart failure were examined by meta-analysis. Significantly increased in expression were iNOS, p47phox, ADM, ANP, OPN, ACE, MCP-1, GP91PHOX, ICAM-1, TGF-β1, CTGF, ET-1, p22phox, ETB, BNP, ETA, MMP13, Col1a1, MMP2, TIMP1, Col3a1, Il-1β, β-MHC, ECE1, MMP14, AGT, and MMP9...
November 15, 2017: Clinical and Experimental Hypertension: CHE
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