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Results 201 - 250 of 2244
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Samarghandian Saeed - - 2010
Saffron is harvested from the dried, dark red stigmas of Crocus sativus flowers. It is used as a spice for flavoring and coloring food as a perfume. It is often used for treating several diseases. We investigated the potential of the ethanolic extract of saffron to induce antiproliferative and cytotoxic ...
Bilban M - - 2010
Invasive, extravillous trophoblasts (EVT) of the human placenta are critically involved in successful pregnancy outcome since they remodel the uterine spiral arteries to increase blood flow and oxygen delivery to the placenta and the developing fetus. To gain more insights into their biological role different primary cell culture models are ...
Ou-Yang Z L - - 2010
A new marine fish cell line, EAGL, derived from the liver of red-spotted grouper Epinephelus akaara was established and characterized. The cells multiplied well in minimum essential medium (MEM) supplemented with 10% foetal bovine serum (FBS) at temperatures between 25 and 30° C. The growth rate of this cell line ...
Echeverría Claudia I - - 2010
The taeniid tapeworm Echinococcus granulosus is the causative agent of echinococcal disease, a major zoonosis with worldwide distribution. Several efforts to establish an in vitro model of E. granulosus have been undertaken; however, many of them have been designed for Echinococcus multilocularis. In the present study, we have described and ...
Audebert M - - 2010
The development of in vitro genotoxic assays as an alternative method to animal experimentation is of growing interest in the context of the implementation of new regulations on chemicals. However, extrapolation of toxicity data from in vitro systems to in vivo models is hampered by the fact that in vitro ...
Sughrue Michael E - - 2010
Alteration of tumor cell growth kinetics is the goal of nearly all current or proposed therapies for human neoplasms. The adenosine triphosphate (ATP) chemiluminescent assay has been used for some time as a surrogate marker of in vitro cell growth. Here we present data showing that three human glioblastoma cell ...
Singh Sanjay K - - 2010
Replying to: H. F. Jørgensen & A. G. Fisher 467, doi:10.1038/nature09305 (2010)Jørgensen and Fisher suggest that the discrepancy with our results could be attributable to our use of E14Tg2a (or its derivatives, such as OS25) rather than E14Tg2a.4 as the parental control line for the REST(+/-) cells (YHC and RRC). ...
Zhang Q-B - - 2011
Esophageal cancer exhibits an uneven geographical distribution strikingly, resulting in focal endemic high-incidence areas in several countries worldwide including China, which might be associated with the environmental and genetic risk factors in those areas. Permanent cancer cell lines are invaluable tools in understanding the biology of cancers and experimental therapeutics. ...
Porter Alison J - - 2010
Transfectants with a wide range of cellular phenotypes are obtained during the process of cell line generation. For the successful manufacture of a therapeutic protein, a means is required to identify a cell line with desirable growth and productivity characteristics from this phenotypically wide-ranging transfectant population. This identification process is ...
Gómez M C - - 2010
The domestic cat is a focal mammalian species that is used as a model for developing assisted reproductive technologies for preserving endangered cats and for studying human diseases. The generation of stable characterized cat embryonic stem cells (ESC) lines to use as donor nuclei may help to improve the efficiency ...
Jones D H A - - 2010
This paper considers the history of Shenton's line.
Kulkeaw Kasem - - 2010
Induced pluripotent stem (iPS) cells were originally generated from somatic cells by ectopic expression of four transcription factor genes: Oct3/4, Sox2, Klf4 and c-Myc. Currently, iPS cell lines differ in tissue origin, the combination of factors used to construct them, the method of gene delivery and expression of pluripotency markers. ...
Tsui Ivy F L - - 2010
Cell lines are invaluable model systems for the investigation of cancer. Knowledge of the molecular alterations that exist within cell models is required to define the mechanisms governing cellular phenotypes. Five tongue squamous cell carcinomas cell lines and 1 submaxillary salivary gland epidermoid carcinoma cell line were analyzed for copy ...
Chuang Cheng-Keng - - 2010
This study reports an initial analysis of an EBV-infected B cell line (TCC36B), established from an urothelial carcinoma (UC) lesion of the renal pelvis. MATERIALS AND METHODS: Cytofluorometric and G-banding analyses were performed for phenotyping and cytogenetics. PCR was used to detect EBV DNA, and sequence analysis to investigate mutations ...
Porter Alison J - - 2010
Manufacture of recombinant proteins from mammalian cell lines requires the use of bioreactor systems at scales of up to 20,000 L. The cost and complexity of such systems can prohibit their extensive use during the process to construct and select the manufacturing cell line. It is therefore common practice to ...
Huang Yao-Ming - - 2010
A highly productive chemically defined fed-batch process was developed to maximize titer and volumetric productivity for Chinese hamster ovary cell-based recombinant protein manufacturing. Two cell lines producing a recombinant antibody (cell line A) and an Fc-fusion protein (cell line B) were used for development. Both processes achieved product titers of ...
Matsubara Daisuke - - 2010
No comprehensive data are available on the molecular predictors of sensitivity to MET inhibitor in lung carcinomas. We examined the efficacy of the MET inhibitor PHA665752 in 41 cell lines of non-small lung carcinoma to determine whether sensitivity to the MET inhibitor is correlated with the (1) genetic statuses of ...
Marlow Laura A LA Mayo Clinic, Department of Cancer Biology, 4500 San Pablo Road, Jacksonville, Florida 32224, - - 2010
Anaplastic thyroid carcinoma (ATC) is a highly aggressive carcinoma in need of therapeutic options. One critical component of drug discovery is the availability of well-characterized cell lines for identification of molecular mechanisms related to tumor biology and drug responsiveness. Up to 42% of human thyroid cancer cell lines are redundant ...
Tauler Jordi - - 2010
Heterogeneous nuclear ribonucleoprotein A2/B1 (hnRNP A2/B1) has been reported to be overexpressed in lung cancer and in other cancers such as breast, pancreas, and liver. However, a mechanism linking hnRNP A2/B1 overexpression and progression to cancer has not yet been definitively established. To elucidate this mechanism, we have silenced hnRNPA2/B1 ...
Nekulová Marta - - 2010
The protein homologous to the tumor suppressor p53, p73, has essential roles in development and tumorigenesis. This protein exists in a wide range of isoforms with different, even antagonistic, functions. However, there are virtually no detailed morphological studies analyzing the endogenous expression of p73 isoforms at the cellular level in ...
Treekitkarnmongkol Warapen W Department of Biochemistry, Faculty of Science, Mahidol University, Bangkok, - - 2010
To compare the impact of ErbB2 on cell invasion and proliferation in cholangiocarcinoma (CCA) cell lines. Level of endogenous ErbB2 expression in three CCA cell lines, namely HuCCA-1, KKU-100 and KKU-M213, was determined by real-time reverse-transcriptase polymerase chain reaction. Two ErbB2 inhibitory methods, a small molecule ErbB2 kinase inhibitor (AG825) ...
Fraga Ana M - - 2011
Pluripotent human embryonic stem (hES) cells are an important experimental tool for basic and applied research, and a potential source of different tissues for transplantation. However, one important challenge for the clinical use of these cells is the issue of immunocompatibility, which may be dealt with by the establishment of ...
García-Escudero Vega - - 2011
Ensheathing glia have been demonstrated to have neuroregenerative properties but this cell type from human sources has not been extensively studied because tissue samples are not easily obtained, primary cultures are slow growing, and human cell lines are not available. We previously isolated immortalized ensheathing glia by gene transfer of ...
Camerlingo Rosa - - 2011
Sarcomatoid carcinomas are a group of poorly differentiated carcinomas containing a sarcomatoid component with the presence of epithelial-mesenchymal transition. To obtain a stabilized cell line, three mediums were used: IMDM, BEBM and IMDM/BEBM. CD44, CD29, CD90, CD133, CD326 antigens, cytokeratins and vimentin were tested by flow cytometry and immunofluorescence assay. ...
Barnard Gavin C - - 2010
The methylotrophic yeast Pichia pastoris has recently been engineered to express therapeutic glycoproteins with uniform human N-glycans at high titers. In contrast to the current art where producing therapeutic proteins in mammalian cell lines yields a final product with heterogeneous N-glycans, proteins expressed in glycoengineered P. pastoris can be designed ...
O'Callaghan Peter M - - 2010
In this study we compare the cellular control of recombinant human IgG(4) monoclonal antibody (Mab) synthesis in different CHO cell lines. Based on comprehensive empirical analyses of mRNA and polypeptide synthetic intermediates we constructed cell line-specific mathematical models of recombinant Mab manufacture in seven GS-CHO cell lines varying in specific ...
Kimura Osamu - - 2010
Accumulating evidence suggests that cancer stem cells (CSC) play an important role in tumorigenicity. Epithelial cell adhesion molecule (EpCAM) is one of the markers that identifies tumor cells with high tumorigenicity. The expression of EpCAM in liver progenitor cells prompted us to investigate whether CSC could be identified in hepatocellular ...
Cvijetić Ilija N - - 2010
An alignment-free 3D QSAR study on antiproliferative activity of the thirty-three 1,2,4,5-tetraoxane derivatives toward two human dedifferentiated cell lines was reported. GRIND methodology, where descriptors are derived from GRID molecular interaction fields (MIF), were used. It was found that pharmacophoric pattern attributed to the most potent derivatives include amido NH ...
Wong Susan - - 2010
Most continuous cell lines with erythroid characteristics are derived from patients with myelogenous leukemia or erythroleukemia. Among them, a few cell lines have been reported to be positive for CD36. We tried to establish a continuous erythroid cell line from the primary CD36(+) erythroid progenitor cells (EPCs) by the lentivirus-mediated ...
Thi Mia M - - 2010
The gap junction protein connexin43 (Cx43) has been proposed to play key roles in bone differentiation and mineralization, but underlying cellular mechanisms are not totally understood. To further explore roles of Cx43 in these processes, we immortalized calvarial osteoblasts from wild-type and Cx43-null mice using human telomerase reverse transcriptase (hTERT). ...
Mandal Arundhati - - 2010
Human embryonic stem cells (hESCs) offer new avenues for studying human development and disease progression in addition to their tremendous potential toward development of cell-replacement therapies for various cellular disorders. We have earlier reported the derivation and characterization of Relicell(®) hES1, the first fully characterized hESC line generated from the ...
Drexler Hans G - - 2010
We outline the near 50-year history of leukemia-lymphoma (LL) cell lines - a key model system in biomedicine. Due to the detailed documentation of their oncogenomic and transcriptional alterations via recent advances in molecular medicine, LL cell lines may be fitted to parent tumors with a degree of precision unattainable ...
Fujioka Tsuyoshi - - 2010
Following the success in establishing human induced pluripotent stem (iPS) cells, research into various applications of the cells derived from human iPS cells has begun in earnest. The use of iPS cell-derived cells in clinical therapies is one of the most exciting of the possible applications. However, the risk of ...
Malphettes Laetitia - - 2010
IgG1 antibodies produced in Chinese hamster ovary (CHO) cells are heavily alpha1,6-fucosylated, a modification that reduces antibody-dependent cellular cytotoxicity (ADCC) and can inhibit therapeutic antibody function in vivo. Addition of fucose is catalyzed by Fut8, a alpha1,6-fucosyltransferase. FUT8(-/-) CHO cell lines produce completely nonfucosylated antibodies, but the difficulty of recapitulating ...
Selvan Senthamil R - - 2010
Personalized vaccine, recognized after the failure of allogenic melanoma whole cell and lysate vaccine phase III trials, involves culturing cells from a patient's own tumor within a short duration and with less passages but with optimized expression of tumor-associated antigens (TAAs). Its feasibility is established by comparing pure cell lines ...
Hoshikawa Hiroshi - - 2010
This study was aimed to investigate the relationship between the antiproliferative effects of D-allose and the up-regulation of thioredoxin-interacting protein (TXNIP) in head and neck cancer cells. For the in vitro study, 5 oral squamous cell carcinoma cell lines (Ca9-22, HSC-3, HSC-4, SAS, and KON) were treated with 25 mmol/L ...
Nakhlband Ailar - - 2010
Lung cancer is still one of the leading causes of malignancy related deaths worldwide despite recent advances in diagnosis and therapy. Among various biomarkers detected in cancerous cells, the epidermal growth factor receptor (EGFR) plays a key role in initiation/promotion of several malignancies. Thus, a number of studies have been ...
Danovi Davide D Wellcome Trust Centre for Stem Cell Research, University of Cambridge, Tennis Court Road, Cambridge CB2 1QR, UK. - - 2010
The development of optimal culture methods for embryonic, tissue and cancer stem cells is a critical foundation for their application in drug screening. We previously described defined adherent culture conditions that enable expansion of human radial glia-like fetal NS (neural stem) cells as stable cell lines. Similar protocols proved effective ...
Wiranowska Marzenna M Department of Pathology and Cell Biology, University of South Florida, College of Medicine, Tampa, FL 33612-4799, USA. - - 2010
This study examines the functional relationship between glioma cell production of hyaluronan (HA), known to play a role in glioma invasion, expression of its CD44 receptor, and glioma cell viability. Production of HA by CD44 positive mouse G26 and human U373 glioma cell lines was evaluated and compared to that ...
Wang Ya-Fen - - 2010
A recombinant Huh7-PPRE-Luc cell line for analyzing the peroxisome proliferator response element (PPRE)-driven luciferase activity was established. The cells exhibited a good dose-response induction in PPRE-driven luciferase activity by three subtypes of peroxisome proliferator-activated receptor (PPAR) agonists as well as by a retinoid X receptor agonist, 9-cis-retinoic acid. Among five ...
Gildea John J JJ University of Virginia, PO Box 801400, Charlottesville, VA 22908, - - 2010
HK-2 human renal proximal tubule cells (RPTC) are commonly used in the in vitro study of "normal" RPTCs. We discovered recently that HK-2 cells are uncoupled from dopamine 1 receptor (D(1)R) adenylyl cyclase (AC) stimulation. We hypothesized that G protein-coupled receptor kinase type 4 (GRK4) single nucleotide polymorphisms may be ...
Takamatsu Fumihiko - - 2010
Cultured cell sheets for transplantation generally have been co-cultured with animal feeder cells, which carry risks because of different species and results in non-contact culture between the feeder and target cells. We developed a new technique to produce human eliminable feeder-assisted target cell sheets by novel human-derived genetically modified feeder ...
Gisselsson David - - 2010
Established tumour cell lines are ubiquitous tools in research, but their representativity is often debated. One possible caveat is that many cell lines are derived from cells with genomic instability, potentially leading to genotype changes in vitro. We applied SNP-array analysis to an established tumour cell line (WiT49). Even though ...
Kremer Melanie - - 2010
Cutaneous T-cell lymphomas (CTCL) are characterised by clonal expansion of helper T lymphocytes that infiltrate the skin. Only a small number of cell lines exist to study cellular pathways leading to T-cell transformation and to identify new targets for intervention. We wanted to investigate the inhibition of mTOR as a ...
Barallon Rita - - 2010
Cell misidentification and cross-contamination have plagued biomedical research for as long as cells have been employed as research tools. Examples of misidentified cell lines continue to surface to this day. Efforts to eradicate the problem by raising awareness of the issue and by asking scientists voluntarily to take appropriate actions ...
Lakra W S - - 2011
Cell lines provide an important biological tool for carrying out investigations into physiology, virology, toxicology, carcinogenesis and transgenics. Teleost fish cell lines have been developed from a broad range of tissues such as ovary, fin, swim bladder, heart, spleen, liver, eye muscle, vertebrae, brain, skin. One hundred and twenty-four new ...
Mulinari Shai - - 2010
The development of multicellular organisms is associated with extensive rearrangements of tissues and cell sheets. The driving force for these rearrangements is generated mostly by the actin cytoskeleton. In order to permit the reproducible development of a specific body plan, dynamic reorganization of the actin cytoskeleton must be precisely coordinated ...
Luo Min - - 2010
Very low density lipoprotein receptor (VLDLR) belongs to the low density lipoprotein receptor family, it is divided into two subtypes according to forms with an absence (type II) or a presence (type I) of the O-linked sugar domain. VLDLR have been detected in kinds of cancers so far; however, the ...
Capes-Davis Amanda - - 2010
Continuous cell lines consist of cultured cells derived from a specific donor and tissue of origin that have acquired the ability to proliferate indefinitely. These cell lines are well-recognized models for the study of health and disease, particularly for cancer. However, there are cautions to be aware of when using ...
Campbell Margie - - 2010
The AttSite Recombinase Technology from Intrexon, Blacksburg, VA, utilizes specific DNA sequences and proprietary recombinase enzymes to catalyze the insertion of a gene of interest at a specific location in the host cell genome. Using this technology, we have developed Chinese Hamster Ovary (CHO) cell lines that have incorporated attB ...
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