Searched for: subject%3A%22Cell%255C%2Bline%22
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Kuipers, M.E. (author), Berg, M.V.D. (author), Meijer, D.K.F. (author), Huisman, H. (author), TNO Preventie en Gezondheid (author)
In the present study, we described the interaction of succinylated human serum albumin (Suc-HSA), a negatively charged anti-HIV-1 active protein, with HIV-1 gp120 and in detail with the third variable domain of gp120 (V3 loop). To this end, different assay formats were tested in which gp120- and V3-related peptides were presented in various...
article 1999
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TNO Preventie en Gezondheid (author), van Sechel, A.C. (author), Bajramovic̀, J.J. (author), van Stipdonk, M.J.B. (author), Persoon-Deen, C. (author), Geutskens, S.B. (author), van Noort, J.M. (author)
The development of multiple sclerosis is most likely influenced by autoimmune responses to central nervous system myelin proteins as well as by infections with common viruses such as EBV and human herpesvirus-6. However, much remains to be established on how these factors interact. In this study, we show that upon EBV infection, human B cells...
article 1999
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Petit-Frère, C. (author), Clingen, P.H. (author), Grewe, M. (author), Krutmann, J. (author), Roza, L. (author), Arlett, C.F. (author), Green, M.H.L. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)
The sunburn reaction is the most common consequence of human exposure to ultraviolet radiation (UVR), and is mediated at least in part by interleukin- 6 (IL-6). The aim of this study was to determine if DNA is a major chromophore involved in the induction of IL-6 following UV irradiation of a human epidermoid carcinoma cell line (KB), and of...
article 1998
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Schalkwijk, C.G. (author), Vermeer, M.A. (author), Stehouwer, C.D.A. (author), te Koppele, J. (author), Princen, H.M.G. (author), van Hinsbergh, V.W.M. (author), Gaubius Instituut TNO (author)
In patients with diabetes, non-enzymatic glycation of low-density lipoprotein (LDL) has been suggested to be involved in the development of atherosclerosis. α-Dicarbonyl compounds were identified as intermediates in the non-enzymatic glycation and increased levels were reported in patients with diabetes. We studied the effect of the α-dicarbonyl...
article 1998
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Centraal Instituut voor Voedingsonderzoek TNO TNO Voedin (author), Groten, J.P. (author), Tajima, O. (author), Feron, V.J. (author), Schoen, E.D. (author)
For the accurate analysis of possible interactive effects of chemicals in a defined mixture, statistical designs are necessary to develop clear and manageable experiments. For instance, factorial designs have been successfully used to detect two-factor interactions. Particularly useful for this purpose are fractionated factorial designs,...
article 1998
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Lupu, C. (author), Goodwin, C.A. (author), Westmuckett, A.D. (author), Emeis, J.J. (author), Scully, M.F. (author), Kakkar, V.V. (author), Lupu, F. (author), Gaubius Instituut TNO (author)
Tissue factor pathway inhibitor (TFPI), the main downregulator of the procoagulant activity of tissue factor·factor VIIa complex, locates in human endothelial cells (EC) in culture as well-defined clusters uniformly distributed both on the cell surface and intracellularly. We here demonstrate by immunofluorescence that TFPI colocalizes in EC...
article 1997
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Hendriks, W.L. (author), de Sman van der - Beer, F. (author), van Vlijmen, B.J.M. (author), van Vark, L.C. (author), Hofker, M.H. (author), Havekes, L.M. (author), TNO Preventie en Gezondheid (author)
Apolipoprotein (apo) E-deficient mice display marked accumulation in the plasma of VLDL deficient in both apoE and apoBl00 but containing apoB48, apoA-1, apoCs, and apoA-IV. Since apoE-deficient mice develop severe atherosclerotic lesions with lipid-laden macrophages, we reasoned that the uptake of lipoproteins by intimal macrophages can take...
article 1997
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Gaubius Instituut TNO (author), Emeis, J.J. (author), Eijnden van den - Schrauwen, Y. (author), van den Hoogen, C.M. (author), de Priester, W. (author), Westmuckett, A. (author), Lupu, F. (author)
In previous studies we have shown that, after stimulation by a receptor ligand such as thrombin, tissue-type plasminogen activator (tPA) and von Willebrand factor (vW(f)) will be acutely released from human umbilical vein endothelial cells (HUVEC). However, the mechanisms involved in the secretion of these two proteins differ in some respects,...
article 1997
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Gaubius Instituut TNO (author), van Dane-Oorschot, A.A.A.M. (author), Fischer, D.F. (author), Grimbergen, J.M. (author), Klein, B. (author), Zhuang, S.M. (author), Falkenburg, J.H.F. (author), Backendorf, C. (author), Quax, P.H.A. (author), van der Eb, A.J. (author), Noteborn, M.H.M. (author)
The chicken anemia virus protein apoptin induces a p53-independent, Bcl- 2-insensitive type of apoptosis in various human tumor cells. Here, we show that, in vitro, apoptin fails to induce programmed cell death in normal lymphoid, dermal, epidermal, endothelial, and smooth-muscle cells. However, when normal cells are transformed they become...
article 1997
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Centraal Instituut voor Voedingsonderzoek TNO TNO Voeding (author), Evers, R. (author), Cnubben, N.H.P. (author), Wijnholds, J. (author), van Deemter, L. (author), van Bladeren, P.J. (author), Borst, P. (author)
The human multidrug resistance protein MRP1 mediates transport of organic substrates conjugated to glutathione, glucuronide, or sulfate. The naturally occurring prostaglandins A1 and A2 can form two diastereomeric glutathione S-conjugates, and it has been speculated that these might be substrates for MRP1. Here we present evidence that polarized...
article 1997
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Kappers, W.A. (author), de Groene, E.M. (author), Kleij, L.A. (author), Witkamp, R.F. (author), Zweers-Zeilmaker, W.M. (author), Feron, V.J. (author), Horbach, G.J. (author), TNO Voeding (author)
1. To study the role of cytochrome P4502C10 in the metabolism of the non-steroidal antiinflammatory drugs (NSAIDs) diclofenac, phenylbutazone, fenoprofen, ibuprofen, flurbiprofen, ketoprofen and naproxen, a cell line was developed stably expressing CYP2C10 cDNA. A retroviral vector construct, containing a human CYP2C10 cDNA, was transfected in...
article 1996
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Cassee, F.R. (author), Stenhuis, W.S. (author), Groten, J.P. (author), Feron, V.J. (author), Instituut CIVO-Toxicologie en Voeding TNO (author)
In vitro studies with human and rat nasal epithelial cells were carried out to investigate the combined toxicity of formaldehyde and acrolein and the role of aldehyde dehydrogenases in this process. These studies showed that the toxic effect of mixtures of aldehydes was additive. In addition, aldehyde dehydrogenases were inhibited by disulfiram...
article 1996
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Arts, J. (author), Grimbergen, J. (author), Bosma, P.J. (author), Rahmsdorf, H.J. (author), Kooistra, T. (author), Gaubius Laboratory, TNO-PG, Leiden, Netherlands Institut für Genetik, Forschungszentrum Karlsruhe, Germany TNO Preventie en Gezondheid (author)
Experiments were designed to clarify the role of c-Jun/c-Fos and of putative phorbol 12-myristate-13-acetate-(PMA)-responsive elements (TREs) in the induction of plasminogen-activator inhibitor 1 (PAI-1) gene transcription in the human hepatoma cell line HepG2 by activators of protein kinase C (PKC). Treatment of HepG2 cells with the phorbol...
article 1996
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Gaubius instituut TNO (author), Hendriks, W.L. (author), van der Boom, H. (author), van Vark, L.C. (author), Havekes, L.M. (author)
Lipoprotein lipase (LPL) stimulates the uptake of low-density lipoprotein (LDL) and very-low-density lipoprotein (VLDL) in different cell types, including macrophages, through bridging of LPL between lipoproteins and extracellular heparan sulphate proteoglycans (HSPG). Because macrophages produce LPL and because modified lipoproteins are present...
article 1996
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Bogaards, J.J.P. (author), van Ommen, B. (author), Wolf, C.R. (author), van Bladeren, P.J. (author), Instituut CIVO-Toxicologie en Voeding TNO (author)
1,2-Dichlorobenzene 1,4-dichlorobenzene, 1,2,4-trichlorobenzene, 1,2,3,5-tetrachlorobenzene, and pentachlorobenzene were incubated with microsomes derived from cell lines expressing human CYP1A1, CYP1A2, CYP3A4, CYP2E1, or CYP2D6. The formation of phenolic metabolites as determined by gas chromatographic analysis evealed that CYP2E1 possessed...
article 1995
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Gaubius Instituut TNO (author), Bakker, A.H.F. (author), Weening-Verhoeff, E.J.D. (author), Verheijen, J.H. (author)
To describe the role of the lysyl binding site in the interaction of tissue-type plasminogen activator (t-PA, FGK1K2P) with a forming fibrin clot, we performed binding experiments with domain deletion mutants GK1K2P, K2P, and the corresponding point mutants lacking the lysyl binding site in the absence and the presence of ε-amino caproic acid ...
article 1995
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Lang, M.S. (author), Oostendorp, R.A.J. (author), Simons, P.J. (author), Boersma, W. (author), Knegt, P. (author), van Ewijk, W. (author)
Both retroviral infections as well as human tumors may cause immunosuppression. One of the factors involved in immunosuppression in patients with squamous cell carcinoma of the head and neck (SCC-HN) is a protein related in the retroviral protein p15E. A conserved, 17-amino acid sequence represents the immunosuppressive epitope of retroviral...
article 1994
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Lombardi, P. (author), Mulder, M. (author), de Wit, E. (author), van Berkel, T.J.C. (author), Frants, R.R. (author), Havekes, L.M. (author), Instituut voor verouderings- en vaatziekten onderzoek TNO (author)
In previous studies we have shown that in HepG2 cells, as compared with fibroblasts, the low-density lipoprotein (LDL) receptor is only weakly down-regulated upon incubation of the cells with LDL. To explain this difference in down-regulation of the LDL-receptor activity, we studied simultaneously the intracellular processing of 125I-labelled...
article 1993
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Gaubius Instituut TNO (author), Lombardi, P. (author), Mulder, M. (author), van der Boom, H. (author), Frants, R.R. (author), Havekes, L.M. (author)
Binding studies at 37 °C showed that lipoprotein lipase-treated very low density lipoproteins (LPL-VLDL) and very low density lipoproteins (VLDL), once taken up via the low density lipoprotein (LDL) receptor, are poorly degraded by HepG2 cells as compared with LDL. Determination of the initial endocytotic rate for LPL-VLDL and VLDL as compared...
article 1993
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Hermens, A.F. (author), Bentvelzen, P.A.J. (author), Instituut voor Toegepaste Radiobiologie en Immunologie TNO (author)
Rat R2k rhabdomyosarcoma cells were transfected with the human H-ras oncogene, which resulted in increased resistance to cell kill in vitro by a single dose of 137Cs γ-rays. A subline carrying one oncogene showed an increase in the quasi-threshold dose (D(q)) from 0.88 to 1.48 Gy. Another subline containing six oncogenes not only had an...
article 1992
Searched for: subject%3A%22Cell%255C%2Bline%22
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