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Boubriak Olga A - - 2013
The intervertebral disc is an avascular tissue, maintained by a small population of cells that obtain nutrients mainly by diffusion from capillaries at the disc-vertebral body interface. Loss of this nutrient supply is thought to lead to disc degeneration, but how nutrient supply influences viable cell density is unclear. We ...
Fu Chunhua C Department of Surgery, University of Florida College of Medicine, Gainesville, FL, - - 2012
To evaluate direct versus indirect monocyte chemoattractant protein (MCP)-1/CCR2 signaling and to identify the cellular producers and effectors for MCP-1 during neointimal hyperplasia (NIH) development in vein grafts. Genomic analysis revealed an overrepresentation of 13 inflammatory pathways in wild-type vein grafts compared with CCR2 knockout vein grafts. Further investigation with ...
Bailey Caleb M - - 2012
Cancer cells must regulate plasticity and invasion to survive and metastasize. However, the identification of targetable mechanisms to inhibit metastasis has been slow. Signaling programs that drive stem and progenitor cells during normal development offer an inroad to discover mechanisms common to metastasis. Using a chick embryo transplant model, we ...
Gigi Roy - - 2012
Thromboprophylaxis reduces the risk of surgery-related deep vein thrombosis, but anticoagulants were associated with systemic osteoporosis, a known risk factor for poor fracture healing. Rivaroxaban (XARELTO®) is a novel anticoagulant with specific ability to inhibit factor Xa, a serine endopeptidase, which plays a key role in coagulation. The present study ...
Plochmann Kathrin - - 2012
The cellular receptor of foamy viruses (FVs) is unknown. The broad spectrum of permissive cells suggests that the cellular receptor is a molecular structure with almost ubiquitous prevalence. Here, we investigated the ability of heparan sulfate (HS), a glycosaminoglycan (GAG) present on the extracellular matrix of many cells, to bind ...
O'Keefe David D DD Division of Basic Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, - - 2012
Mechanisms that govern cell-fate specification within developing epithelia have been intensely investigated, with many of the critical intercellular signaling pathways identified, and well characterized. Much less is known, however, about downstream events that drive the morphological differentiation of these cells, once their fate has been determined. In the Drosophila wing-blade ...
Welzel Petra B - - 2012
Macroporous scaffolds with adaptable mechanical and biomolecular properties can be instrumental in enabling cell-based therapies. To meet these requirements, a cryostructuration method was adapted to prepare spongy hydrogels based on chemically cross-linked star-shaped poly(ethylene glycol) (starPEG) and heparin. Subzero temperature treatment of the gel forming reaction mixtures and subsequent lyophilization ...
Kurokawa Suguru - - 2012
In vivo studies have shown that selenium is supplied to testis and brain by apoER2-mediated endocytosis of Sepp1. Although cultured cell lines have been shown to utilize selenium from Sepp1 added to the medium, the mechanism of uptake and utilization has not been characterized. Rat L8 myoblast cells were studied. ...
Baik Jong Youn - - 2012
Heparin is the most widely used pharmaceutical to control blood coagulation in modern medicine. A health crisis that took place in 2008 led to a demand for production of heparin from non-animal sources. Since Chinese hamster ovary (CHO) cells are capable of producing heparan sulfate (HS), a related polysaccharide naturally, ...
Smillie I R A - - 2012
There is a need to develop rice plants with improved photosynthetic capacity and efficiency in order to enhance potential grain yield. Alterations in internal leaf morphology may be needed to underpin some of these improvements. One target is the production of a 'Kranz-like' anatomy, commonly considered to be required to ...
Walensky Loren D LD Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA. - - 2012
In this issue of Molecular Cell, Dumitru et al. (2012) report that hES cells localize a conformationally activated form of proapoptotic BAX to the trans Golgi network, a previously unanticipated launch pad for mitochondrial assault in response to DNA damage.
Pan Yan - - 2012
Aim:To investigate the inhibitory effects of heparin on PC-3M cells proliferation in vitro and B16-F10-luc-G5 cells metastasis in Balb/c nude mice and identify the protein expression patterns to elucidate the action mechanism of heparin.Methods:Human prostate cancer PC-3M cells were incubated with heparin 0.5 to 125 μg/mL for 24 h. The ...
Puvirajesinghe Tania M TM Centre for Glycobiology, Department of Biochemistry and Cell Biology, Institute of Integrative Biology, The University of Liverpool, Liverpool L69 7ZB, - - 2012
Array methodologies have become powerful tools for interrogation of glycan-protein interactions but have critically lacked the ability to generate cell response data. Here, we report the development of a slide-based array method exemplified by measurement of activation of fibroblast growth factor signaling by heparin saccharides. Heparan sulfate-deficient Swiss 3T3 cells ...
Kuo Yung-Chih - - 2012
The potential of constructs comprising induced pluripotent stem (iPS) cells and biopolymers can be high for neurological surgery practice, if the systematic activity of neuronal regeneration is clarified. This study shows a guided differentiation of iPS cells toward neurons in neuron growth factor (NGF)-grafted poly(ε-caprolactone) (PCL)-poly(β-hydroxybutyrate) (PHB) scaffolds. The porosity ...
Kang Dong Gyun - - 2012
Periplasmic secretion has been used in attempts to construct an efficient whole-cell biocatalyst with greatly reduced diffusion limitations. Previously, we developed recombinant Escherichia coli that expresses organophosphorus hydrolase (OPH) in the periplasmic space using the twin-arginine translocation (Tat) pathway to degrade environmental toxic organophosphate compounds (OPs). This system has the ...
Suga Naoko - - 2012
The function of CD44-v3 and heparin/heparan sulfate (HS) signaling was investigated during trophoblast cell migration to identify their role in the renewal of syncytial layer damage caused by increased hemodynamic turbulence in the intervillous space and maintenance of syncytial integrity in pre-eclampsia. We evaluated the effect of heparin/HS/CD44-v3-mediated processes during ...
Lee Sung-Bau - - 2012
In the current issue of Molecular Cell, Yu et al. (2012) establish H3K56 monomethylation (H3K56me1) as a new mammalian chromatin mark, imposed by the G9a methyltransferase and recognized by the replication clamp PCNA.
da Rosa Nathalia Gonsales - - 2012
Hemophilia A is caused by a deficiency in coagulation factor VIII. Recombinant factor VIII can be used as an alternative although it is unavailable for most patients. Here, we describe the production of a human recombinant B-domain-deleted FVIII (rBDDFVIII) by the human cell line SK-HEP-1, modified by a lentiviral vector ...
Meng Shengnan - - 2012
Flavonoids are polyphenolic compounds with various claimed health benefits, but the extensive metabolism by uridine-5'-diphospho-glucuronosyltransferases (UGTs) and sulfotransferases (SULTs) in liver and intestine led to poor oral bioavailabilities. The effects of structural changes on the sulfonation of flavonoids have not been systemically determined, although relevant effects of structural changes on ...
Li Zhigang - - 2012
There are few reports that describe the physiological changes in a vein graft used to reconstruct lacrimal canaliculus. This article aims to observe the phasic changes in cell proliferation in an autogenous vein graft used to repair the lacrimal canaliculus. Lacrimal canaliculus disjunction was made in a rabbit model by ...
Ruf Wolfram W Department of Immunology and Microbial Science, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA. - - 2012
The generation of procoagulant Tissue Factor (TF) is crucial for thrombosis. TF contains a surface exposed allosteric disulfide bond that stabilizes the carboxyl-terminal domain involved in ligand interactions with coagulation factors VIIa and X. TF procoagulant activation typically occurs following cellular perturbations that also cause the appearance of procoagulant phosphatidylserine ...
Takahashi Azusa - - 2012
Epithelial cells are pivotal in the separation of the body from the outside environment. Orally administered drugs must pass across epithelial cell sheets, and most pathological organisms invade the body through epithelial cells. Tight junctions (TJs) are sealing complexes between adjacent epithelial cells. Modulation of TJ components is a potent ...
Chitnis Ajay B - - 2012
The posterior lateral line (pLL) in zebrafish has emerged as an excellent system to study how a sensory organ system develops. Here we review recent studies that illustrate how interactions between multiple signaling pathways coordinate cell fate,morphogenesis, and collective migration of cells in the posterior lateral line primordium. These studies ...
Thu Mya S - - 2012
We report on a new straightforward magnetic cell-labeling approach that combines three US Food and Drug Administration (FDA)-approved drugs--ferumoxytol, heparin and protamine--in serum-free medium to form self-assembling nanocomplexes that effectively label cells for in vivo magnetic resonance imaging (MRI). We observed that the ferumoxytol-heparin-protamine (HPF) nanocomplexes were stable in serum-free ...
Fischer Sarah - - 2012
BACKGROUND: Implantation of silicone materials like iris diaphragms into the eye can be complicated by cell migration and attachment. We studied polydimethylsiloxane (PDMS) foils coated with isocyanate terminated, star-shaped poly(ethylene glycol-stat-propylene glycol) (NCO-sP(EO-stat-PO)) equipped with heparin towards the inhibition of cell attachment without influencing cell viability. METHODS: Mouse fibroblasts L929 ...
Guo Yingshu - - 2012
A disulfide-bound molecular beacon (MB) is reported to respond sensitively to changing levels of glutathione in vitro. Importantly, this successful application of a MB has exciting potential for monitoring cellular thiol.
Welsh J - - 2012
Introduction:  Cancers are associated with varying degrees of an increased risk of venous thromboembotic events (VTE) occurring. This increased risk is tumour driven and associated with tumour expression of tissue factor (TF) and tumour-derived microparticles (MP). In this study, cancer cell lines from phenotypically distinct tumours were assessed for cell ...
Karplus P Andrew - - 2012
In this issue of Molecular Cell, Day et al. (2012) reveal a surprising benefit of peroxiredoxin inactivation at high H(2)O(2), showing that in Schizosaccharomyces pombe turning off peroxide defenses preserves the pool of reduced thioredoxin for repairing proteins vital to survival.
Baik Jong Youn - - 2012
Heparin is the most widely used pharmaceutical to control blood coagulation in modern medicine. A health crisis that took place in 2008 led to a demand for production of heparin from non-animal sources. Chinese hamster ovary (CHO) cells, commonly used mammalian host cells for production of foreign pharmaceutical proteins in ...
Chu Hai-Bo - - 2012
The purpose of this study is to describe the infiltration of mast cells as well as T and B cells in the walls of thrombotic varicose great saphenous veins. Sections were obtained from venous segments of patients with varicose veins and stained with toluidine blue for mast cells, while immunohistochemistry ...
Fontes A M - - 2012
Hemophilia A is the most common X-linked bleeding disorder; it is caused by deficiency of coagulation factor VIII (FVIII). Replacement therapy with rFVIII produced from human cell line is a major goal for treating hemophilia patients. We prepared a full-length recombinant FVIII (FVIII-FL), using the pMFG-P140K retroviral vector. The IRES ...
Dudas B - - 2012
Glycosaminoglycans (GAGs) are basic building blocks of the ground substance of the extracellular matrix and present at the cellular level as an important component of the glycocalyx covering the cell membrane. In addition to the general role of GAGs in maintaining the integrity of the cell and extracellular matrix by ...
Orlova N A - - 2012
Prophylaxis and treatment of inherited clotting disorder hemophilia A requires regular administration of factor VIII. Recombinant factor VIII, which is produced in CHO or BHK cells, is equivalent to the plasma-derived one and is prevalent in current clinical practice in developed countries. Development of a biosimilar recombinant FVIII requires the ...
Lenaerts Liesbeth - - 2012
Application of human adenovirus type 5 (Ad5) derived vectors for cancer gene therapy has been limited by the poor cell surface expression, on some tumor cell types, of the primary Ad5 receptor, the coxsackie-adenovirus-receptor (CAR), as well as the accumulation of Ad5 in the liver following interaction with blood coagulation ...
Melo-Silveira Raniere Fagundes - - 2012
Xylan is one of most abundant polymer after cellulose. However, its potential has yet to be completely recognized. Corn cobs contain a considerable reservoir of xylan. The aim of this work was to study some of the biological activities of xylan obtained from corn cobs after alkaline extraction enhanced by ...
Guzmán-Urióstegui Alberto - - 2011
Carpospore output and development in the marine red alga Hydropuntia cornea J. Agardh. were increased by adding polyamines (PAs) (putrescine, spermidine and spermine) singly or in combinations at 10(-9), 10(-6) and 10(-3) M. Cell divisions after spore release and development of apical axis between 17 and 21 days characterized carpospore development. PAs ...
Casini Paola - - 2011
Hyaluronan is a crucial glycosaminoglycan of the vertebrate embryonic extracellular matrix able to influence cell behaviour, both by assembling the pericellular matrices and by activating signal transducing receptors such as CD44. We showed that the hyaluronan synthases, Has1 and Has2, and CD44 display a dynamic expression pattern during cranial neural ...
Ma Nan - - 2011
In this study, we demonstrate that BMSCs (bone marrow mesenchymal stem cells) can be successfully differentiated into type II alveolar epithelial cells in vitro under mimic pulmonary microenvironment. BMSCs were co-cultured with MRC-5 cells in modified SAGM (small airway growth medium). The BMSC-derived type II alveolar epithelial cells morphologically resemble ...
Lorenzini Antonello - - 2011
We have examined the tolerance of the spindle assembly checkpoint (SAC), as measured by the appearance of tetraploid cells in the presence of a microtubule inhibitor, in a series of primary cell strains derived from species with diverse lifespan and body size. We find that the integrity of the SAC ...
Patthey Cédric - - 2011
During early vertebrate development, the embryonic ectoderm becomes subdivided into neural, neural plate border (border) and epidermal regions. The nervous system is derived from the neural and border domains which, respectively, give rise to the central and peripheral nervous systems. To better understand the functional nervous system we need to ...
Tong Yiai - - 2011
Huntington's disease (HD), caused by an expanded triplet repeat in the huntingtin (Htt) gene, results in extensive neuropathology, but study of the Htt gene in CNS development through gene knockout is problematic as the knockout leads to embryonic lethality in mice. Here, we report that the knockdown of Htt expression ...
Ivec Martin - - 2011
OBJECTIVE: To determine the influence of delayed compaction and fragmentation on the developmental capacity of morulas. DESIGN: Prospective study. SETTING: University IVF center. PATIENT(S): Intracytoplasmic sperm injection (ICSI) cycles with compact embryos on day 4 or day 5. INTERVENTION(S): The embryos were divided into day 4 (n = 329) and ...
Topczewski Jacek - - 2011
Out of the several signaling pathways controlling craniofacial development, the role of planar cell polarity (PCP) signaling is relatively poorly understood. This pathway, originally identified as a mechanism to maintain cell polarity within the epithelial cells of the Drosophila wing, has been linked to the proper development of a wide ...
Bugeon Laurence L Imperial College London, London, SW7 2AZ, - - 2011
Controversy persists regarding the role of Notch signaling in myelopoiesis. We have used genetic approaches, employing two Notch zebrafish mutants deadly seven (DES) and beamter (BEA) with disrupted function of notch1a and deltaC, respectively, and Notch1a morphants to analyze the development of leukocyte populations in embryonic and mature fish. Myelomonocytes ...
Chawengsaksophak Kallayanee - - 2011
Disruptions in the regulatory pathways controlling sex determination and differentiation can cause disorders of sex development (DSD), often compromising reproductive function. Although extensive efforts have been channeled into elucidating the regulatory mechanisms controlling the many aspects of sexual differentiation, the majority of DSD phenotypes are still unexplained at the molecular ...
Taleb Nadine - - 2011
RFX6 has recently been found to be essential for the development of the endocrine pancreas through studies in both humans and mice. Interestingly, this gene maintains a specific expression in the postnatal hormone producing cells of the pancreas. Moreover in humans, different types of diabetes mellitus affect obligate carriers of ...
Ma Yan-Lei - - 2011
The increase in proliferation and the lack of differentiation of cancer cells resemble what occur in the embryonic stem cells during physiological process of embryogenesis. There are also striking similarities in the behaviour between the invasive placental cells and invasive cancer cells. In the present study, microarrays were used to ...
Moir L M - - 2011
Lymphangioleiomyomatosis (LAM) is characterized by the abnormal growth of smooth muscle-like cells (LAM cells) and cystic destruction of the lung parenchyma. LAM cell-derived matrix metalloproteinases (MMPs) are thought to play a prominent role in the tissue destruction. The aim of this study was to determine whether doxycycline, a known MMP ...
Rishniw Mark - - 2011
The following on molecular aspects of esophageal development contains commentaries on esophageal striated myogenesis and transdifferentiation; conversion from columnar into stratified squamous epithelium in the mouse esophagus; the roles for BMP signaling in the developing esophagus and forestomach; and evidence of a direct conversion from columnar to stratified squamous cells ...
Mo Wei-Chuan - - 2011
The hypogeomagnetic field (HGMF; magnetic fields <200 nT) is one of the fundamental environmental factors of space. However, the effect of HGMF exposure on living systems remains unclear. In this article, we examine the biological effects of HGMF on the embryonic development of Xenopus laevis (African clawed frog). A decrease in ...
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