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https://www.readbyqxmd.com/read/28550789/eversion-stripping-of-the-esophagus-with-intraesophageal-insufflation-a-case-report
#1
Masahiro Kimura, Takaya Nagasaki, Yoshiyuki Kuwabara, Hironori Tanaka, Motoki Hato, Satoshi Taniwaki, Akira Mitsui, Yasuyuki Shibata, Kotaro Mizuno, Yoichiro Mori, Nobuo Ochi, Shuhei Ueno, Yuki Eguchi
INTRODUCTION: Patients with esophageal cancer frequently cannot tolerate thoracotomy due to their overall debilitated condition. Moreover, some patients have severe adhesions in the thoracic cavity. Eversion stripping of the esophagus is an option for resection in these patients. PRESENTATION OF CASE: A 64-year-old man was admitted to our institution with the chief complaint of epigastric pain. Endoscopic examination showed a protruding lesion 22cm from the incisors, with a superficial and circumferential mucosal irregularity on the distal side of the lesion...
May 15, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28550522/reduced-monocyte-adhesion-to-aortae-of-diabetic-plasminogen-activator-inhibitor-1-knockout-mice
#2
Ruozhi Zhao, Khuong Le, Mohammed H Moghadasian, Garry X Shen
OBJECTIVE AND DESIGN: To determine the requirement of plasminogen activator inhibitor-1-knockout (PAI-1) for monocyte adhesion in animals and cells under diabetic conditions. METHODS AND SUBJECTS: Monocyte adhesion assay, enzyme-linked immunosorbent assay, and Western blotting were used in analyzing samples from PAI-1-knockout (PAI-1-KO) mice or cultured human umbilical vein endothelial cells (HUVEC). TREATMENTS: Diabetes in PAI-1-KO and wild-type mice was induced by intraperitoneal injection of streptozotocin (STZ)...
May 26, 2017: Inflammation Research: Official Journal of the European Histamine Research Society ... [et Al.]
https://www.readbyqxmd.com/read/28550396/genistein-protects-against-ox-ldl-induced-inflammation-through-microrna-155-socs1-mediated-repression-of-nf-%C3%A4-b-signaling-pathway-in-huvecs
#3
Huaping Zhang, Zhenxiang Zhao, Xuefen Pang, Jian Yang, Haixia Yu, Yinhong Zhang, Hui Zhou, Jiahui Zhao
Genistein plays an important role in the prevention of atherosclerosis. However, the underlying mechanisms have not been fully investigated. In this study, human umbilical vein endothelial cells (HUVECs) were pretreated with genistein (10, 100, and 1000 nM) for 6 h and then exposed to ox-LDL (50 mg/L) for another 24 h. Results showed that ox-LDL induced the expressions of E-selectin, P-selectin, monocyte chemotactic protein-1, interleukin-8, vascular adhesion molecule-1, and intercellular adhesion molecule-1, which were counteracted by genistein...
May 27, 2017: Inflammation
https://www.readbyqxmd.com/read/28550263/microglial-and-neuronal-tdp-43-pathology-in-anti-iglon5-related-tauopathy
#4
Annachiara Cagnin, Sara Mariotto, Michele Fiorini, Marina Gaule, Nicola Bonetto, Matteo Tagliapietra, Emanuele Buratti, Gianluigi Zanusso, Sergio Ferrari, Salvatore Monaco
A novel neuronal tauopathy, mainly confined to hypothalamus and brainstem tegmentum, has recently been reported in patients with autoantibodies to the neuronal cell-adhesion molecule IgLON5. We describe a patient with anti-IgLON5 syndrome, who presented with dysautonomia and sleep disorder, followed by subacute dementia. Postmortem brain examination disclosed neuronal tau pathology prevailing in the hippocampus, amygdala, and locus coeruleus, in addition to microglial/neuronal TDP-43 pathology, with overexpression of aberrantly phosphorylated forms and neurotoxic truncated fragments, in basal ganglia, nucleus basalis, thalamus, and midbrain...
May 26, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28550110/trpm8-inhibits-endothelial-cell-migration-via-a-non-channel-function-by-trapping-the-small-gtpase-rap1
#5
Tullio Genova, Guillaume P Grolez, Chiara Camillo, Michela Bernardini, Alexandre Bokhobza, Elodie Richard, Marco Scianna, Loic Lemonnier, Donatella Valdembri, Luca Munaron, Mark R Philips, Virginie Mattot, Guido Serini, Natalia Prevarskaya, Dimitra Gkika, Alessandra Fiorio Pla
Endothelial cell adhesion and migration are critical steps of the angiogenic process, whose dysfunction is associated with tumor growth and metastasis. The TRPM8 channel has recently been proposed to play a protective role in prostate cancer by impairing cell motility. However, the mechanisms by which it could influence vascular behavior are unknown. Here, we reveal a novel non-channel function for TRPM8 that unexpectedly acts as a Rap1 GTPase inhibitor, thereby inhibiting endothelial cell motility, independently of pore function...
May 26, 2017: Journal of Cell Biology
https://www.readbyqxmd.com/read/28550109/chronic-%C3%AE-cell-depolarization-impairs-%C3%AE-cell-identity-by-disrupting-a-network-of-ca-2-regulated-genes
#6
Jennifer S Stancill, Jean-Philippe Cartailler, Hannah W Clayton, James T O'Connor, Matthew T Dickerson, Prasanna K Dadi, Anna B Osipovich, David A Jacobson, Mark A Magnuson
We used mice lacking Abcc8, a key component of the β-cell KATP-channel, to analyze the effects of a sustained elevation in the intracellular Ca(2+) concentration ([Ca(2+)]i) on β-cell identity and gene expression. Lineage tracing analysis revealed the conversion of β-cells lacking Abcc8 into PP-cells, but not to α- or δ-cells. RNA-Seq analysis of FACS-purified Abcc8(-/-) β-cells confirmed an increase in Ppy gene expression, and revealed altered expression of over 4,200 genes, many of which are involved in Ca(2+)-signaling, the maintenance of β-cell identity, and cell adhesion...
May 26, 2017: Diabetes
https://www.readbyqxmd.com/read/28550101/a-novel-experimental-rat-model-of-peripheral-nerve-scarring-reliably-mimicking-post-surgical-complications-and-recurring-adhesions
#7
Angela Lemke, Carina Penzenstadler, James Ferguson, Dominika Lidinsky, Rudolf Hopf, Monika Bradl, Heinz Redl, Susanne Wolbank, Thomas Hausner
Inflammation, fibrosis and perineural adhesions with the surrounding tissue are common pathological processes following nerve injury and surgical interventions on peripheral nerves in human patients. Furthermore, these signs can reoccur following external neurolysis, currently the most common surgical treatment, thus leading to renewed nerve function impairment and chronic pain. To enable a successful evaluation of new therapeutic approaches, it is crucial to use a reproducible animal model that mimics the main clinical symptoms occurring in human patients...
May 26, 2017: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/28550056/biofilm-formation-potential-of-heat-resistant-escherichia-coli-dairy-isolates-and-complete-genome-of-mdr-heat-resistant-strain-fam21845
#8
Roger Marti, Michael Schmid, Sandra Kulli, Kerstin Schneeberger, Javorka Naskova, Susanne Knøchel, Christian H Ahrens, Jörg Hummerjohann
We tested the biofilm formation potential of 30 heat resistant and six heat sensitive E. coli dairy isolates. The production of curli and cellulose, static biofilm formation on polystyrene (PS) and stainless steel, formation of biofilm under dynamic conditions (Bioflux), and initial adhesion rates (IAR) were evaluated. Biofilm formation varied greatly between strains, media and assay. Our results highlight the importance of the experimental setup to determine biofilm formation under conditions of interest, as correlation between different assays was often not given...
May 26, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28549925/intracellular-domain-contacts-contribute-to-ecadherin-constitutive-dimerization-in-the-plasma-membrane
#9
Deo R Singh, Fozia Ahmed, Sarvenaz Sarabipour, Kalina Hristova
Epithelial cadherin (Ecadherin) is responsible for the intercellular cohesion of epithelial tissues. It forms lateral clusters within adherens cell-cell junctions, but its association state outside these clusters is unknown. Here we use a quantitative FRET approach to show that Ecadherin forms constitutive dimers, and that these dimers exist independently of the actin cytosletelon or cytoplasmic proteins. The dimers are stabilized by inter-molecular contacts that occur along the entire length of Ecadherin, with the intracellular domains having a surprisingly strong favorable contribution...
May 23, 2017: Journal of Molecular Biology
https://www.readbyqxmd.com/read/28549920/dissecting-intrinsic-and-ligand-induced-structural-communication-in-the-%C3%AE-3-headpiece-of-integrins
#10
Angelo Felline, Michela Ghitti, Giovanna Musco, Francesca Fanelli
BACKGROUND: Graph theory is widely used to dissect structural communication in biomolecular systems. Here, graph theory-based approaches were applied to the headpiece of integrins, adhesion cell-surface receptors that transmit signals across the plasma membranes. METHODS: Protein Structure Network (PSN) analysis incorporating dynamic information either from molecular dynamics simulations or from Elastic Network Models was applied to the β3 domains from integrins αVβ3 and αIIbβ3 in their apo and ligand-bound states...
May 23, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28549588/graphene-modified-titanium-alloy-promote-the-adhesion-proliferation-and-osteogenic-differentiation-of-bone-marrow-stromal-cells
#11
Kewen Li, Jinhong Yan, Chunhui Wang, Long Bi, Qi Zhang, Yisheng Han
We studied the effects of graphene coating on improving the biological activity of a titanium alloy (Ti6Al4V). The experiments included immunofluorescence staining for observing cellular adhesion, Cell Counting Kit-8 (CCK-8) for evaluating cellular proliferation and reverse transcription-polymerase chain reaction (RT-PCR) for detecting the differentiation of BMSCs on different scaffolds. The results showed that G-Ti6Al4V exhibited a higher mean integrated optical density (IOD) for vinculin and resulted in a higher and more intensive cell proliferation rate and higher osteoblast-specific gene transcription levels...
May 23, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28549415/role-of-peptidylarginine-deiminase-2-pad2-in-mammary-carcinoma-cell-migration
#12
Sachi Horibata, Katherine E Rogers, David Sadegh, Lynne J Anguish, John L McElwee, Pragya Shah, Paul R Thompson, Scott A Coonrod
BACKGROUND: Penetration of the mammary gland basement membrane by cancer cells is a crucial first step in tumor invasion. Using a mouse model of ductal carcinoma in situ, we previously found that inhibition of peptidylarginine deiminase 2 (PAD2, aka PADI2) activity appears to maintain basement membrane integrity in xenograft tumors. The goal of this investigation was to gain insight into the mechanisms by which PAD2 mediates this process. METHODS: For our study, we modulated PAD2 activity in mammary ductal carcinoma cells by lentiviral shRNA-mediated depletion, lentiviral-mediated PAD2 overexpression, or PAD inhibition and explored the effects of these treatments on changes in cell migration and cell morphology...
May 26, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28549396/molecular-mechanisms-underlying-the-protective-effects-of-hydrogen-saturated-saline-on-noise-induced-hearing-loss
#13
Liwei Chen, Mingkun Han, Yan Lu, Daishi Chen, Xuejun Sun, Shiming Yang, Wei Sun, Ning Yu, Suoqiang Zhai
OBJECTIVES: This study aimed to explore the molecular mechanism of the protective effects of hydrogen-saturated saline on NIHL. METHODS: Guinea pigs were divided into three groups: hydrogen-saturated saline; normal saline; and control. For saline administration, the guinea pigs were given daily abdominal injections 3 d before and 1 h before noise exposure. ABR were tested to examine cochlear physiology changes. The changes of 8-hydroxy-desoxyguanosine (8-HOdG), interleukin-1 (IL-1), interleukin-6 (IL-6), interleukin-10 (IL-10), tumor necrosis factor-α (TNF-α), intercellular cell adhesion molecule-1 (ICAM-1) and high mobility group box-1 protein (HMGB1) in the cochlea were also examined...
May 26, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28548895/non-canonical-functions-of-claudin-proteins-beyond-the-regulation-of-cell-cell-adhesions
#14
Susan J Hagen
Tight junctions form a barrier to the diffusion of apical and basolateral membrane proteins thus regulating membrane polarity. They also regulate the paracellular movement of ions and water across epithelial and endothelial cells so that functionally they constitute an important permselective barrier. Permselectivity at tight junctions is regulated by claudins, which confer anion or cation permeability, and tightness or leakiness, by forming several highly regulated pores within the apical tight junction complex...
May 19, 2017: Tissue Barriers
https://www.readbyqxmd.com/read/28548481/isolation-of-phenotypically-distinct-cancer-cells-using-nanoparticle-mediated-sorting
#15
Brenda Green, Leyla Kermanshah, Mahmoud Labib, Sharif Ahmed, Pamuditha Silva, Laili Mahmoudian, I-Hsin Chang, Reza M Mohamadi, Jonathan V Rocheleau, Shana O Kelley
Isolating subpopulations of heterogeneous cancer cells is an important capability for the meaningful characterization of circulating tumor cells at different stages of tumor progression and during epithelial to mesenchymal transition (EMT). Here, we describe a two-dimensional separation approach that yields phenotypically-distinct subpopulations of cancer cells. Magnetic nanoparticles coated with antibodies against the epithelial cell adhesion molecule (EpCAM) are used to enrich cancer cells in a microfluidic platform...
May 26, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28548369/invadosomes-are-coming-new-insights-into-function-and-disease-relevance
#16
REVIEW
Elyse K Paterson, Sara A Courtneidge
Invadopodia and podosomes are discrete, actin-based molecular protrusions that form in cancer cells and normal cells respectively in response to diverse signaling pathways and extracellular matrix cues. Although they participate in a host of different cellular processes, they share a common functional theme of controlling pericellular proteolytic activity, which sets them apart from other structures that function in migration and adhesion, including focal adhesions, lamellipodia, and filopodia. In this review, we highlight research that explores the function of these complex structures, including roles for podosomes in embryonic and postnatal development, in angiogenesis and remodeling of the vasculature, in maturation of the post-synaptic membrane, in antigen sampling and recognition, and in cell-cell fusion mechanisms, as well as the involvement of invadopodia at multiple steps of the metastatic cascade, and how all of this may apply in the treatment of human disease states...
May 26, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28547896/assembly-of-breast-cancer-heterotypic-spheroids-on-hyaluronic-acid-coated-surfaces
#17
Marco P Carvalho, Elisabete C Costa, Ilídio J Correia
Drug screening is currently demanding for realistic models that are able to reproduce the structural features of solid tumors. 3D cell culture systems, namely spheroids, emerged as a promising approach to provide reliable results during drug development. So far, Liquid Overlay Technique (LOT) is one of the most used methods for spheroids assembly. It comprises cellular aggregation due to their limited adhesion to certain biomaterials, like agarose. However, researchers are currently improving this technique in order to obtain spheroids on surfaces that mimic cancer extracellular matrix (ECM), since cell-ECM interactions modulate cells behavior and their drug resistance profile...
May 25, 2017: Biotechnology Progress
https://www.readbyqxmd.com/read/28547877/comparative-study-of-osteogenic-activity-of-multilayers-made-of-synthetic-and-biogenic-polyelectrolytes
#18
Deepak Guduru, Marcus S Niepel, Cristina Gonzalez-Garcia, Manuel Salmeron-Sanchez, Thomas Groth
Polyelectrolyte multilayer (PEM) coatings on biomaterials are applied to tailor adhesion, growth, and function of cells on biomedical implants. Here, biogenic and synthetic polyelectrolytes (PEL) are used for layer-by-layer assembly to study the osteogenic activity of PEM with human osteosarcoma MG-63 cells in a comparative manner. Formation of PEM is achieved with biogenic PEL fibrinogen (FBG) and poly-l-lysine (PLL) as well as biotinylated chondroitin sulfate (BCS) and avidin (AVI), while poly(allylamine hydrochloride) (PAH) and polystyrene sulfonate (PSS) represent a fully synthetic PEM used as a reference system here...
May 26, 2017: Macromolecular Bioscience
https://www.readbyqxmd.com/read/28546532/regulation-of-c-jun-n-terminal-protein-kinase-jnk-pathway-in-apoptosis-of-endothelial-outgrowth-cells-induced-by-asymmetric-dimethylarginine
#19
Fu-Qing Zhang, Wei Lu, Wen-Xiao Yuan, Xin Li
BACKGROUND Endothelial outgrowth cells (EOCs) are terminal endothelial progenitor cells (EPCs). Asymmetric dimethylarginine (ADMA) has been identified as a novel risk factor for cardiovascular diseases. Our aim in the present study was to investigate the effect of regulation of asymmetric dimethylarginine (ADMA) on EOCs apoptosis and to explore the underlining mechanisms of c-Jun N-terminal protein kinase (JNK) pathway in the process. MATERIAL AND METHODS EOCs were harvested from umbilical cord blood and obtained by using density gradient centrifugation and adhesive culture methods...
May 26, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28546458/proteoglycans-ion-channels-and-cell-matrix-adhesion
#20
REVIEW
Ioli Mitsou, Hinke A B Multhaupt, John R Couchman
Cell surface proteoglycans comprise a transmembrane or membrane-associated core protein to which one or more glycosaminoglycan chains are covalently attached. They are ubiquitous receptors on nearly all animal cell surfaces. In mammals, the cell surface proteoglycans include the six glypicans, CD44, NG2 (CSPG4), neuropilin-1 and four syndecans. A single syndecan is present in invertebrates such as nematodes and insects. Uniquely, syndecans are receptors for many classes of proteins that can bind to the heparan sulphate chains present on syndecan core proteins...
May 25, 2017: Biochemical Journal
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