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Results 451 - 500 of 2627
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Jain Raksha - - 2010
Cilia are traditionally classified as motile or primary. Motile cilia are restricted to specific populations of well-differentiated epithelial cells, including those in the airway, brain ventricles, and oviducts. Primary cilia are nonmotile, solitary structures that are present in many cell types, and often have sensory functions such as in the ...
Varelogianni Georgia - - 2010
Defective chloride transport in epithelial cells increases mucus viscosity and leads to recurrent infections with high oxidative stress in patients with CF (cystic fibrosis). NAC (N-acetylcysteine) is a well known mucolytic and antioxidant drug, and an indirect precursor of glutathione. Since GSNO (S-nitrosoglutathione) previously has been shown to be able ...
Nakajima Hiroyuki - - 2010
Cell-shape change in epithelial structures is fundamental to animal morphogenesis. Recent studies identified myosin-II as the major generator of driving forces for cell-shape changes during morphogenesis. Lulu (Epb41l5) is a major regulator of morphogenesis, although the downstream molecular and cellular mechanisms remain obscure in mammals. In Drosophila and zebrafish, Lulu ...
Modak Cristina - - 2010
CCN1 is a matricellular protein involved in both wound healing and cancer cell invasion. Increased CCN1 expression has been associated with the development of Barrett's esophagus and the increased risk of progression to esophageal adenocarcinoma. In both cases, acid reflux is a major contributor. Low pH has been shown to ...
Xin Ying Y Stem Cell Institute, James Brown Cancer Center, Department of Ophthalmology and Visual Sciences, University of Louisville School of Medicine, 301 E. Muhammad Ali Blvd., Louisville, KY 40202, - - 2010
14-3-3sigma (also called stratifin) is specifically expressed in the stratified squamous epithelium and its function was recently shown to be linked to epidermal stratification and differentiation in the skin. In this study, we investigated its role in corneal epithelium cell proliferation and differentiation. We showed that the 14-3-3sigma mutation in ...
Schulz Martin M - - 2010
There are forensic inquiries in which an identification of epithelial cell types would provide important probative evidence. In cancer diagnosis, this information is yielded by histological examination of cytokeratin (Ck). Therefore, we tested 19 antibodies against different Cks (Ck1, Ck2e, Ck4, Ck5-6, Ck7, Ck8, Ck9, CK10, Ck13, Ck14, Ck15, Ck16, ...
Aperce C C - - 2010
Previous research evaluated a laboratory strain of Bacillus licheniformis (BL) in a model swine epithelium and found it exerted antiinflammatory effects on Salmonella enterica serovar Typhimurium (Sal)-induced secretion of IL-8. The current investigation evaluated the antiinflammatory actions of Bacillus bacteria available commercially as feed additives for the swine industry. Three ...
Hoffmann Peter - - 2010
OBJECTIVE/BACKGROUND: Signals for the expression of EGF, TGFalpha and related proteins are largely unknown. Having shown earlier, that activation of the afferent sensory nervous system by capsaicin induced epithelial cell proliferation and TGFalpha expression in vivo the aim of this study was to demonstrate, that neurotransmitters of the afferent sensory ...
Raju Ragavendra T - - 2010
BACKGROUND: There are very few studies documenting morphometric parameters of normal oral mucosa and leukoplakia. The present study was undertaken to establish the morphometric parameters of the parabasal and spinous cells of normal oral epithelium. Analysis of changes occurring in these cells in leukoplakia was also done. METHODS: This study ...
Taylor Kristen R - - 2010
Epithelial cells provide an initial line of defense against damage and pathogens in barrier tissues such as the skin; however this balance is disrupted in obesity and metabolic disease. Skin gammadelta T cells recognize epithelial damage, and release cytokines and growth factors that facilitate wound repair. We report here that ...
Kusano Mao - - 2010
PURPOSE: We evaluated acute changes in corneal barrier function after instillation with preservatives using corneal transepithelial electric resistance (TER) in vivo and cytotoxicity tests in vitro. METHODS: The corneal TER of live rabbits was measured using a volt-ohm meter and silver/silver chloride electrodes. The cornea was exposed to the preservatives ...
Roth C - - 2010
In animal wound models, accelerated wound closure has been shown by use of polihexanide applied in antimicrobially effective concentrations. Additionally, an increased ATP production of keratinocytes in vitro induced by polihexanide was demonstrated and interpreted as a stimulatory effect on cell proliferation. Based on these results and the clinical reports ...
Lee Jin Wook - - 2010
This review article presents how microfluidic technologies and biological materials are paired to assist in the development of low cost, green energy fuel cell systems. Miniaturized biological fuel cells, employing enzymes or microorganisms as biocatalysts in an environmentally benign configuration, can become an attractive candidate for small-scale power source applications ...
Yang C Y - - 2010
Manipulating an incorporated scaffold to direct cell behaviors play a key role in tissue engineering. In this study, we developed novel nano-topographic oxidized silicon nanosponges capable of being modified with various chemicals of a few nm in thickness to gain further insight into the fundamental biology of cell-environment interactions in ...
Wiley Luke A - - 2010
PURPOSE: To develop a means to image cells in S-phase of the cell cycle while preserving the anatomic relationships within the lens. METHODS: Mice were injected with the thymidine analog, EdU. Whole lenses were removed, fixed and permeabilized. Cells that had incorporated EdU into their DNA were chemically labeled using ...
Jonhede S - - 2010
PURPOSE: The aim of the present study was to examine the effects of the sigma-2 receptor agonist, siramesine, on morphology, growth, cell death, lysosomal function, and effects on extra-lysosomal proteolytic systems in human lens epithelial cells. METHODS: Human lens epithelial cells in culture were exposed to siramesine and examined for ...
Titus Kim - - 2010
Large volume adherent cell culture is currently standardized on stacked plate cell growth products when microcarrier beads are not an optimal choice. HYPERStack vessels allow closed system scale up from the current stacked plate products and delivers >2.5X more cells in the same volumetric footprint. The HYPERStack vessels function via ...
Menheniott Trevelyan R - - 2010
Choroid plexus epithelial cells form an integral and important part of the barrier between blood and cerebrospinal fluid. Culture of choroid plexus epithelium in vitro has been achieved from several mammalian species and this provides opportunities for the study of choroid plexus development and function, including the capacity of the ...
Thépot A - - 2010
Recently, oral mucosal epithelial cells were proposed as a cell source of the autologous cell transplant therapy for corneal trauma or disease. The question addressed is to know if the biological conditions of grafting could induce certain cellular, molecular, and genetic alterations that might increase the risk of mutations and ...
March Catalina - - 2010
Infected airway epithelial cells up-regulate the expression of chemokines, chiefly IL-8, and antimicrobial molecules including beta-defensins (BD). Acinetobacter baumannii is a cause of hospital-acquired pneumonia. We examined whether A. baumannii induced the expressions of IL-8 and BD2 by airway epithelial cells and the receptors implicated in bacterial detection. A549 and ...
Vock Christina - - 2010
The complex phenotype of allergic bronchial asthma involves a variable degree of bronchoobstruction, increased mucus production, and airway remodeling. So far it is suggested that it arises from multiple interactions of infiltrating and structural cells in the context of chronic airway inflammation that is orchestrated by T helper 2 (TH2) ...
Liang Yuan-Li - - 2010
A cell rotation method by using optoelectronic tweezers (OET) is reported. The binary image of a typical OET device, whose light and dark sides act as two sets of parallel plates with different ac voltages, was used to create a rotating electric field. Its feasibility for application to electrorotation of ...
Zuo Lian - - 2010
INTRODUCTION: Basal phenotype breast cancers (BPBC) are often associated with apparent epithelial to mesenchymal transition (EMT). The role of progesterone (P4) in regulating EMT of BPBC has not been reported. METHODS: The EMT relevant biology was investigated in vitro using human BPBC cell models (MDA-MB468 and MDA-MB231) with P4, PR ...
Mori Kazuya - - 2010
We addressed whether vascularization of the thymus anlage depends on Foxn1 expression. In the thymus anlagen of wild-type mice, CD31(+) endothelial cells are initially observed between epithelial cells on embryonic day (Ed)12.5 and form luminal structure on Ed13. VEGF are produced in epithelial cells and mesenchymal cells which invaginate in ...
Harada Taishi - - 2010
Fibroblastic foci, a major histological feature of usual interstitial pneumonia (UIP), play a critical role in the development of UIP. The mechanisms involved in the formation of these foci, however, including cellular origin, remain unclear. Recent in vitro and animal studies suggested epithelial-mesenchymal transition (EMT) of alveolar epithelial cells during ...
Zhan Weijiao - - 2010
PURPOSE: To develop a new culture system to cultivate differentiated autologous cells in vitro for cell therapy and tissue engineering. METHODS: After incubation in murine embryonic stem cell (ESC) extract for 1 h, streptolysin-O (SLO) permeabilized cells were resealed with CaCl(2) and continually cultured for weeks. The morphological study was ...
Paquet-Fifield Sophie - - 2010
This protocol describes a technically simple in vivo assay of long-term skin regeneration in human skin, providing a reliable method for epidermal tissue reconstitution using small numbers of several types of epithelial cells, from epithelial cell lines to primary epithelial stem cells and transplanted with or without prior culture. The ...
Oka Mikako - - 2010
PURPOSE: Side population (SP) cells were isolated and the possibility whether lens epithelial cells contain stem cells was investigated. METHODS: Mouse lens epithelial cells were stained by Hoechst 33342 and then sorted by fluorescence-activated cell sorting (FACS). The expression of stem cell markers in sorted SP cells and the main ...
Tai Hsiao-Yun - - 2010
Pen ch 13 is an alkaline serine protease major allergen from Penicilliumchrysogenum. CD44 adhesion molecules play important roles in resolving lung inflammation and repairing epithelial damages during bronchial asthma. The purpose of this study was to investigate the effects of Pen ch 13 on CD44 of human bronchial epithelial cells. ...
Miki Toshio - - 2010
Many of the cell types that can be isolated from placental tissues retain phenotypic plasticity that makes them an interesting source of cells for regenerative medicine. Several procedures for the isolation of stem cells from different parts of the placenta have been reported. This unit describes a detailed and simple ...
Chao Yvonne L - - 2010
Epithelial to mesenchymal transition (EMT), implicated as a mechanism for tumor dissemination, is marked by loss of E-cadherin, disruption of cell adhesion, and induction of cell motility and invasion. In most intraductal breast carcinomas E-cadherin is regulated epigenetically via methylation of the promoter. E-cadherin expression is therefore dynamic and open ...
Zhang Kun - - 2010
Cell migration followed by matrix invasion is a critical step required for epithelial cell differentiation, growth and survival. This study determined the RON receptor in regulation of motile-invasive phenotypes of epithelial cells. Two RON variants, RON165.e11p and RON165, with alterations in a defined extracellular domain were used as the model. ...
Guilak Farshid - - 2010
The use of tissue engineering therapies for treating damaged articular cartilage has traditionally focused on cell-based therapies for the repair of focal chondral or osteochondral defects. A recent study by Lee and colleagues in the Lancet shows exciting proof-of-concept that an acellular scaffold containing transforming growth factor beta 3 can ...
Nishio Clarice - - 2010
The junctional epithelium (JE) adheres to the tooth surface, and seals off periodontal tissues from the oral environment. This incompletely differentiated epithelium is formed initially by the fusion of the reduced enamel organ with the oral epithelium (OE). Two proteins, odontogenic ameloblast-associated (ODAM) and amelotin (AMTN), have been identified in ...
Manzo Nicholas D - - 2010
Exposure to traffic-related ambient air pollution, such as diesel exhaust particles (DEP), is associated with adverse health outcomes, especially in individuals with preexisting inflammatory respiratory diseases. Using an analogous novel in vitro system to model both the healthy and inflamed lung, the susceptibility of epithelial cells exposed to DEP of ...
Joshi Sagar D - - 2010
Embryonic epithelial cells serve as an ideal model to study morphogenesis where multi-cellular tissues undergo changes in their geometry, such as changes in cell surface area and cell height, and where cells undergo mitosis and migrate. Furthermore, epithelial cells can also regulate morphogenetic movements in adjacent tissues(1). A traditional method ...
Castellani Stefano - - 2010
Lentiviral (LV) vectors are promising agents for efficient and long-lasting gene transfer into the lung and for gene therapy of genetically determined pulmonary diseases, such as cystic fibrosis, however, they have not been evaluated for cytotoxicity and impact on the tightness of the airway epithelium. In this study, we evaluated ...
Gomez Pol - - 2010
Aspergillus fumigatus (A. fumigatus) is a ubiquitous fungus which reproduces asexually by releasing abundant airborne conidia (spores), which are easily respirable. In allergic and immunocompromised individuals A. fumigatus can cause a wide spectrum of diseases, including allergic bronchopulmonary aspergillosis, aspergilloma and invasive aspergillosis. Previous studies have demonstrated that A. fumigatus ...
Block Gregory J - - 2010
The epithelial cell response to stress involves the transmission of signals between contiguous cells that can be visualized as a calcium wave. In some cell types, this wave is dependent on the release of extracellular trinucleotides from injured cells. In particular, extracellular ATP has been reported to be critical for ...
Schleh Carsten - - 2010
Allergen-containing subpollen particles (SPP) are released from whole plant pollen upon contact with water or even high humidity. Because of their size SPP can preferentially reach the lower airways where they come into contact with surfactant protein (SP)-D. Our previous work demonstrated that SP-D increases the uptake of SPP by ...
Ha Seon-Ah - - 2010
Cell transdifferentiation is characterized by loss of some phenotypes along with acquisition of new phenotypes in differentiated cells. The differentiated state of a given cell is not irreversible. It depends on the up- and downregulation exerted by specific molecules. We report here that HCCR-1, previously shown to play an oncogenic ...
Mimura Tatsuya - - 2010
To isolate progenitor cells from rabbit corneal epithelial cells (CEC) in serum- and feeder layer-free culture conditions and to compare the self-renewal capacity of corneal epithelial progenitor cells obtained from the central and limbal regions of the cornea. Tissue samples of New Zealand white rabbit corneas were dissected from the ...
Wang Baigang - - 2010
Cells of the epithelially organised dermomyotome are traditionally believed to give rise to skeletal muscle and dermis. We have previously shown that the dermomyotome can undergo epithelial-mesenchymal transition (EMT) and give rise to chondrogenic cells, which go on to form the scapula blade in birds. At present we have little ...
Salerno Marco - - 2010
Examples of programmed tissue response after the interaction of cells with biomaterials are a hot topic in current dental research. We propose here the use of anodic porous alumina (APA) for the programming of cell growth in oral tissues. In particular, APA may trigger cell growth by the controlled release ...
Katoli Parvaneh - - 2010
To demonstrate the presence of natriuretic peptide receptors (NPRs) in primary human corneal epithelial cells (p-CEPI), SV40-immortalized CEPI cells (CEPI-17-CL4) and in human corneal epithelium, and to define the pharmacology of natriuretic peptide (NP)-induced cGMP accumulation. NPR presence was shown by RT-PCR, western blot analysis, and indirect immunofluoresence. cGMP accumulation ...
Akiyama Hirokazu - - 2010
Here we applied a magnetic force-based tissue engineering technique to cardiac tissue fabrication. A mixture of extracellular matrix precursor and cardiomyocytes labeled with magnetic nanoparticles was added into a well containing a central polycarbonate cylinder. With the use of a magnet, the cells were attracted to the bottom of the ...
Singavarapu Rajasekhar - - 2010
Ovarian surface epithelial cells are thought to be a precursor cell type for ovarian carcinoma. It has been proposed that an increased rate of ovarian surface epithelial cell proliferation during ovulatory wound repair contributes to the accumulation of genetic changes and cell transformation. The proliferation of ovarian surface epithelial cells ...
Fosslien Egil - - 2010
The hormetic morphogen theory of curvature (Fosslien 2009) proposes that hormetic morphogen concentration gradients modulate the synthesis of adenosine triphosphate (ATP) by cells along the gradients (field cells) and thus regulate their proliferation and induce curvature such as vascular wall curvature; however, it is unclear whether such morphogen gradients can ...
Zahm Jean-Marie - - 2010
Staphylococcus aureus releases virulence factors (VF) that may impair the innate protective functions of airway cells. The aim of this study was to determine whether a long-acting beta2 adrenergic receptor agonist (salmeterol hydroxynaphthoate, Sal) combined with a corticosteroid (fluticasone propionate, FP) was able to regulate ion content and cytokine expression ...
Tan Xiahui - - 2010
Transforming growth factor beta1 (TGF-beta1)-mediated epithelial mesenchymal transition (EMT) of alveolar epithelial cells (AEC) may contribute to lung fibrosis. Since PPAR gamma ligands have been shown to inhibit fibroblast activation by TGF-beta1, we assessed the ability of the thiazolidinediones rosiglitazone (RGZ) and ciglitazone (CGZ) to regulate TGF-beta1-mediated EMT of A549 ...
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