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Shaul Yoav D YD Whitehead Institute for Biomedical Research, Nine Cambridge Center, Cambridge, MA 02142, USA; Koch Institute for Integrative Cancer Research at MIT, 77 Massachusetts Avenue, Cambridge, MA 02139, - - 2014
It is increasingly appreciated that oncogenic transformation alters cellular metabolism to facilitate cell proliferation, but less is known about the metabolic changes that promote cancer cell aggressiveness. Here, we analyzed metabolic gene expression in cancer cell lines and found that a set of high-grade carcinoma lines expressing mesenchymal markers share ...
Chan Manuel M Rosalind and Morris Goodman Cancer Research Centre, McGill - - 2014
GMX1778 and its pro-drug GMX1777 represent a new class of cancer drugs that target nicotinamide phosphoribosyltransferase (NAMPT), as a new strategy to interfere with biosynthesis of the key enzymatic co-factor NAD, which is critical for a number of cell functions including DNA repair. Using a genome-wide synthetic lethal siRNA screen, ...
Wong Charng Choon CC Pharmacotherapeutics Unit, Department of Medicine, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, 43400 Selangor, - - 2014
Andrographolide (AGP) is the main bioactive constituent isolated from the traditional medicinal, Andrographis paniculata which contributes towards its various biological activities, including anticancer property. In this study, a series of new AGP derivatives were semi-synthesised and screened against the NCI in vitro 60 cell lines. From the screening results, we ...
Muylaert Dimitri Ep DE Department of Nephrology and Hypertension, University Medical Center Utrecht, Utrecht, The - - 2014
Synthetic replacement grafts for heart valves and small-diameter blood vessels such as coronary arteries have the potential to circumvent many of the limitations of currently available autologous grafting materials. Cell-free material incorporating biologically active compounds may guide the formation of fully autologous new tissue in situ derived from host cells ...
Lisch Walter W *Department of Ophthalmology, Johannes Gutenberg University Mainz, Mainz, Germany; and †Department of Ophthalmology, University Medical Center UKS, Saarland, - - 2014
To evaluate the question whether lattice corneal dystrophy type 1 (LCD1) is of epithelial or stromal origin. The landmark of advanced LCD1 shows central superficial haze and paracentral stromal lattice lines. In 16 eyes of 8 affected individuals of 2 families, a penetrating keratoplasty was performed. The follow-up was 8 ...
Kayabasoglu Gurkan G Department of Otorhinolaryngology, Faculty of Medicine, Sakarya University, Adnan Menderes Cad. No 145, Adapazar─▒, Sakarya, 54100, Turkey, - - 2014
To compare the cellular viability of diced, crushed, and morselized cartilage used in nasal surgeries. In this study, cartilage was extracted from the ears of seven New Zealand rabbits and was subsequently either diced, crushed or morselized to an amorphous state, or left unmodified. The four types of grafts were ...
Kweon HaeYong H Department of Agricultural Biology, National Academy of Agricultural Science, RDA, Suwon 441-853, Republic of - - 2014
Grafted macromolecules often induce granuloma formation with foreign body giant cell (FBGC) infiltration, and this is the main reason for graft failure. Diacylglycerol kinase (DAGK) is an important intracellular mediator of FBGC formation in macrophages. In this study, 4-hexylresorcinol (4HR) inhibited DAGKδ in a macrophage cell line (RAW264.7 cells). As ...
Cui Haitao - - 2014
In this study, a novel electroactive tetreaniline-containing degradable polyelectrolyte multilayer film (PEM) coating [(poly(L-glutamic acid)-graft-tetreaniline/poly(L-lysine)-graft-tetreaniline)n, (PGA-g-TA/PLL-g-TA)n] was designed and fabricated by layer-by-layer (LbL) assembly method. Compared with the nongrafted PEMs, the tetreaniline-grafted PEMs showed higher roughness and stiffness in micro/nanoscale structures. The special surface characteristics and the typical electroconductive properties ...
Mendelson Avital A New York, N.Y. From the Center for Craniofacial Regeneration and the Department of Otolaryngology-Head and Neck Surgery, Columbia University Medical Center; and the Department of Biomedical Engineering, Columbia - - 2014
Current augmentative and reconstructive rhinoplasties use auto logous tissue grafts or synthetic bioinert materials to repair nasal trauma or attain an aesthetic shape. Autologous grafts are associated with donor-site trauma and morbidity. Synthetic materials are widely used but often yield an unnatural appearance and are prone to infection or dislocation. ...
Felgueiras Helena H Laboratory of Biomaterials and Specialty Polymers, LBPS-CSPBAT UMR CNRS 7244, Institut Galilée, Université Paris 13, Sorbonne Paris Cité, 99 Avenue Jean-Baptiste Clément, 93430 Villetaneuse, - - 2014
Ten years ago, we synthesized "bioactive model polymers" bearing sulfonate groups and proposed a mechanism of their modulation effect at different steps of the cell response. Then, we set up the grafting of polymers bearing sulfonate on Ti6Al4V surfaces by a grafting "from" technique making sure of the creation of ...
Cabane Etienne E Wood Materials Science, Institute for Building Materials, ETH Zürich, Stefano-Franscini-Platz 3, 8093 Zürich (Switzerland); Applied Wood Materials, EMPA-Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600 Dübendorf (Switzerland). - - 2014
A "grafting-from" polymerization approach within and at the complex and heterogeneous macromolecular assembly of wood cell walls is shown. The approach allows for the implementation of novel functionalities in renewable and functional wood-based materials. The native wood structure is retained and used as a hierarchical multiscale framework for a modular ...
Costa Roberta - - 2013
Although intracerebral transplantation of various fibroblast (-like) cell populations has been shown feasible, little is known about the actual in vivo remodelling of these cellular grafts and their environment. In this study, we aimed to compare the in vitro and in vivo behaviour of two phenotypically similar ? but developmentally ...
Knapik Alicia - - 2013
Storage of split-thickness skin grafts (STSGs) represents a standard procedure in burn surgery. The purpose of this study was to evaluate clinical routine of STSG preservation. Further, we aimed at investigating the effect of storage on tissue integrity and cell viability, proliferation, apoptosis and vascularization. A survey was performed among ...
Chung Tze-Wen - - 2013
Poly(ε-caprolactone) (PCL) scaffolds functionalized by grafting nerve growth factor (NGF) and Asp-Arg-Gly-Asp (GRGD)(PCL-NGF/GRGD) for neural tissue engineering. The influences of PCL-NGF/GRGD scaffolds on the growth and differentiation of PC12 cells were investigated. The successfully grafting NGF and GRGD into PCL-CS scaffold were verified by FTIR spectra. The densities of GRGD ...
Williams Stuart K - - 2013
We evaluated the use of an automated, point-of-care instrument to derive canine adipose stromal vascular fraction cells, and the subsequent deposition of these cells onto the luminal surface of an expanded polytetrafluoroethylene (ePTFE) vascular graft for use as a bypass graft. The hypothesis evaluated was that an instrument requiring minimal ...
Alam N - - 2013
We investigated the cellular biology of tendon grafting in a mouse model using green fluorescent protein mismatch grafting and quantitative immunohistochemistry of molecular markers for inflammation, proliferation, collagen synthesis, cell death, and myofibroblast/pericyte expression. We provide a detailed analysis of the healing characteristics during the phases of inflammation, synthesis, and ...
Hohlrieder M - - 2013
Various studies have shown that physical stimuli modulate cell function and this has motivated the development of a bioreactor to engineer tissues in vitro by exposing them to mechanical loads. Here, we present a bioreactor for the physical stimulation of anterior cruciate ligament (ACL) grafts, whereby complex multi-dimensional strain can ...
Sys Gwen M L - - 2013
Sarcoma is a very rare disease that is heterogeneous in nature, all hampering the development of new therapies. Sarcoma patients are ideal candidates for personalized medicine after stratification, explaining the current interest in developing a reproducible and low-cost xenotransplant model for this disease. The chick chorioallantoic membrane is a natural ...
Gimi Barjor B Department of Radiology, Dartmouth Medical School, Hanover, New Hampshire; Department of Medicine, Dartmouth Medical School, Hanover, New - - 2013
Rapid developments in the therapeutic applications of genetically engineered cells and stem cell research have increased the possibilities of addressing some pathologies by grafting therapeutic cells. Immunoprotective encapsulation of such therapeutic cells is often essential for their survival and function. Hydrogels provide a bioteolerable matrix for cellular encapsulation and support ...
Bergmeister Helga - - 2012
Pore size and porosity control rate and depth of cellular migration in electrospun vascular fabrics and thereby have a strong impact on long-term graft success. In this study we investigated the effect of graft porosity on cell migration in-vitro and in-vivo. Polyetherurethane (PU) grafts were fabricated by electrospinning as fine ...
Hayashi Masanori M Biomechanics Laboratory, Division of Orthopedic Research, Mayo Clinic, 200 1st Street S.W., Rochester, MN 55905 - - 2012
We have recently reported that interpositional synovium grafts from tendon sheath have a potential to accelerate tendon healing when implanted at the repair site. The purpose of this study was to investigate the effect of orientation of the synovium after synovium graft transplantation, by comparing the ability of cells from ...
Panneerselvan Anitha - - 2012
An implantable scaffold pre-seeded with cells needs to remain viable and encourage rapid angiogenesis in order to replace injured tissues, especially for tissue defect repairs. We created a bioartificial adipose graft composed of an electrospun 3D nanofibrous scaffold and fat tissue excised from New Zealand white rabbits. Cell viability and ...
Hartmann-Fritsch Fabienne - - 2012
PURPOSE: Human amniotic fluid comprises cells with high differentiation capacity, thus representing a potential cell source for skin tissue engineering. In this experimental study, we investigated the ability of human amniotic fluid derived cells to substitute dermal fibroblasts and support epidermis formation and stratification in a humanized animal model. METHODS: ...
Chitta Kasyapa S KS Department of Hematology and Oncology, Mayo Clinic, Jacksonville, FL 32224, USA. - - 2013
Understanding the biology of Waldenström macroglobulinemia is hindered by a lack of preclinical models. We report a novel cell line, RPCI-WM1, from a patient treated for WM. The cell line secretes human immunoglobulin M (h-IgM) with κ-light chain restriction identical to the primary tumor. The cell line has a modal ...
Kasuga Jun - - 2012
The supercooling capability of xylem parenchyma cells (XPCs) in boreal hardwood species differs depending not only on species but also season. In the present study, the roles of cell walls and intracellular contents in supercooling capability of XPCs were examined in three boreal hardwood species, Japanese beech, katsura tree and ...
Delgado Dolores - - 2012
Stomata are epidermal bi-celled structures that differentiate within special cell lineages initiated by a subset of protodermal cells. Recently, we showed that the Arabidopsis photomorphogenic repressor COP10 controls specific cell-lineage and cell-signaling developmental mechanisms in stomatal lineages. Loss-of-function cop10-1 mutant cotyledons and leaves produced (in the light and in the ...
Li Guocan - - 2012
We report the first case of Ru(ii) dipyrrinates employed as dyes in dye-sensitized solar cells. These complexes exhibit panchromatic light harvesting that results in significant DSSC current densities, rendering them promising for photovoltaic applications. Adjustment of the lowest excited state energy is required to boost the power conversion efficiency.
Sumaru Kimio - - 2012
As a powerful tool of cell screening and cell purification, we developed a novel method to kill adherent cells as cultured on a substrate by micro-projection of incoherent visible light. To kill the cells by the mild light irradiated by electrically controllable micro-projection systems currently available, we introduced the assist ...
Hernández-Franyutti Arlette - - 2012
We describe seasonal variations of the histology of the seminiferous tubules and efferent ducts of the tropical, viviparous skink, Mabuya brachypoda, throughout the year. The specimens were collected monthly, in Nacajuca, Tabasco state, Mexico. The results revealed strong annual variations in testicular volume, stages of the germ cells, and diameter ...
Berk Veysel - - 2012
In their natural environment, microbes organize into communities held together by an extracellular matrix composed of polysaccharides and proteins. We developed an in vivo labeling strategy to allow the extracellular matrix of developing biofilms to be visualized with conventional and superresolution light microscopy. Vibrio cholerae biofilms displayed three distinct levels ...
Sun Yubing Y Integrated Biosystems and Biomechanics Laboratory, University of Michigan, Ann Arbor, Michigan 48109, United - - 2012
Mechanical properties of the extracellular matrix (ECM) have profound effects on cellular functions. Here, we applied novel photosensitive polydimethylsiloxane (photoPDMS) chemistry to create photosensitive, biocompatible photoPDMS as a rigidity-tunable material for study of mechanoresponsive cellular behaviors. By modulating the PDMS cross-linker to monomer ratio, UV light exposure time, and postexposure ...
Johnson Alyssa E AE Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee, - - 2012
Mitotic exit and cell division must be spatially and temporally integrated to facilitate equal division of genetic material between daughter cells. In the fission yeast, Schizosaccharomyces pombe, a spindle pole body (SPB) localized signaling cascade termed the septation initiation network (SIN) couples mitotic exit with cytokinesis. The SIN is controlled ...
Lim Wonbong - - 2012
Abstract Objective: The aim of this study was to examine the reactive oxygen species (ROS) that are dissipated by 635 nm irradiation, and the effect of 635 nm irradiation on ROS scavenging system. Background data: Intracellular ROS are produced in the form of superoxide anion by either nicotinamide adenine dinucleotide phosphate (NADPH) ...
Xiao Jian-Long - - 2012
We used a liquid-crystal spatial light modulator to project 473 nm light patterns surrounding a region of adherent cells and achieved an arbitrarily micropatterned cell culture. For a group of ∼60 cells, the cell boundaries fit the pattern of light within 15% deviation of the side length. We also demonstrated ...
Kim Chanhong - - 2012
Enhanced levels of singlet oxygen ((1)O(2)) in chloroplasts trigger programmed cell death. The impact of (1)O(2) production in chloroplasts was monitored first in the conditional fluorescent (flu) mutant of Arabidopsis thaliana that accumulates (1)O(2) upon a dark/light shift. The onset of (1)O(2) production is rapidly followed by a loss of ...
Victora Gabriel D - - 2012
Germinal centers (GCs) are sites of B-cell clonal expansion, hypermutation, and selection. GCs are polarized into dark (DZ) and light zones (LZ), a distinction that is of key importance to GC selection. However, the difference between the B cells in each of these zones in humans remains unclear. We show ...
Nomikou Nikolitsa - - 2012
Photodynamic therapy (PDT) is emerging as a treatment modality for the management of neoplastic disease. Despite considerable clinical success, its application for the treatment of deep-seated lesions is constrained by the inability of visible light to penetrate deeply into tissues. An emerging alternative approach exploits the fact that many photosensitisers ...
Westendorf Aron F - - 2012
Photoactivatable PtIV diazido complexes have unusual photobiological properties. We demonstrate here that trans,trans,trans-[PtIV(N3)2(OH)2(py)(NH3)] 3 is a potent photoactivated cytotoxin towards human cancer cells in culture, with an average IC50 value in 13 cell lines of 55 ± 28 µM after 30 min (0.12 mW/cm2) photoactivation with UVA light, although visible ...
Singh Shailendra P - - 2012
Fremyella diplosiphon modifies the pigment composition of its major light-harvesting complexes, i.e., phycobilisomes (PBS), and cell and filament morphology according to ambient light quality in a process termed complementary chromatic adaptation (CCA). The cells are red in color, rectangular-shaped, and filaments are longer under green light (GL), in contrast with ...
Miyake Takeo - - 2012
Similar to conventional electrolyte batteries, biofuel cells often need to be stacked in order to boost their single cell voltage (<1V) up to a practical level. Here, we report a laminated stack of biofuel cells that is composed of bioanode fabrics for fructose oxidation, hydrogel sheets containing electrolyte and fuel ...
Mishra Swati - - 2012
Hydrogels, containing yeast cells or fibroblast cells, were fabricated using blue light-induced polymerization technique. The cell-loaded prepolymer formulation was comprised of poly(ethyleneglycol) diacrylate (more than or equal to 50% v/v), 0.5 wt % Eosin Y and 0.5 wt % triethanolamine as the base oligomer, photo-initiator, and co-initiator, respectively. The two ...
Sheng Xia - - 2012
The intraovarian function of gonadally produced inhibin and activin has been extensively studied in experimental models for decades, yet their presence and function have been rarely reported in wild rodents. With our seasonal breeding model, the wild ground squirrel, we aimed to investigate the possible roles of these peptides in ...
Itoh Masahiko - - 2012
The organization of the apical junctional complex and its association with the cytoskeleton is essential for the function of epithelial cells. However, knowledge about the signaling pathways that regulate these processes is still fragmentary. Here we found that ARHGEF11, a member of the RGS-RhoGEF family, associates with tight junctions (TJs) ...
Tamai T Katherine - - 2012
A fundamental role of the circadian clock is to control biochemical and physiological processes such that they occur an optimal time of day. One of the most significant clock outputs from a clinical as well as basic biological standpoint is the timing of the cell cycle. Here we show that ...
Gallardo J J - - 2012
This paper presents a non-conventional methodology and an instrumental system to measure the effect of temperature on the photovoltaic properties of solar cells. The system enables the direct measurement of the evolution of open-circuit voltage and short-circuit current intensity in relation to a continuously decreasing temperature. The system uses a ...
Yang Qing - - 2012
An integrated system consisting of a carbon fiber-ZnO hybrid nanowire (NW) multicolor photodetector is driven by a microbial fuel cell (see picture; PMMA=poly(methyl methacrylate), E=electrode). The self-powered photodetector can detect at light levels of as little as nW cm(-2) intensity with a responsivity of more than 300 A W(-1) .
Fidopiastis Pat M - - 2012
Vibrio fischeri cells are the sole colonists of a specialized light organ in the mantle cavity of the sepiolid squid Euprymna scolopes. The process begins when the bacteria aggregate in mucus secretions outside the light organ. The cells eventually leave the aggregate, enter the light organ, and encounter a rich ...
Zhang Yunlin - - 2012
We investigated phytoplankton absorption properties of Lake Taihu, in the spring and summer of 2005 and 2006, and for 17 days studied laboratory cultures of Scenedesmus obliquus (chlorophyta) and Microcystis aeruginosa (cyanophyta) to determine the effect of phytoplankton community composition and cell size on the absorption properties. There were significant ...
Zimmerli Céline - - 2012
Stomatal opening and closing are driven by ion fluxes that cause changes in guard cell turgor and volume. This process is, in turn, regulated by environmental and hormonal signals, including light and the phytohormone abscisic acid (ABA). Here, we present genetic evidence that expression of PHO1 in guard cells of ...
Han Lei - - 2012
A new light-driven, membraneless and mediatorless glucose-air biofuel cell combining a TiO(2) nanotube photoanode with an enzyme-modified biocathode has been successfully constructed. Upon UV light illumination, the open-circuit voltage and the maximum power density of the cell reach 1.00 V and 47 μW cm(-2), respectively.
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