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  • Wiley-Blackwell  (25)
  • Munksgaard International Publishers  (3)
  • 1
    Electronic Resource
    Electronic Resource
    Copenhagen : Munksgaard International Publishers
    Experimental dermatology 10 (2001), S. 0 
    ISSN: 1600-0625
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract: Dendritic cells seem to be of major importance for the pathogenesis of psoriasis. They are increased in number in lesional psoriatic skin which is thought to be due to an increased influx from the peripheral blood regulated by chemotaxins. Using a biological/biochemical approach we have addressed the question whether psoriasis scale extracts contain proteinaceous chemotaxins for dendritic cells. Human monocytes differentiated into dendritic cells by culture with GM-CSF and IL-4 (MoDC) served as responder cells. Chemotactic activity for MoDC was purified by several HPLC-steps. The results of our study show that C5a/C5adesarg is the major chemotactic peptide for MoDC in psoriasis scale extracts. In comparison to other stimuli such as fMLP or monocyte chemotactic peptide 1 (MCP-1) C5a proved to be a most potent and efficient chemotaxin for MoDC. C5a co-eluted with MRP14/calgranulin B which is present in large amounts in psoriasis scale extracts as identified by amino acid sequencing. However, MRP14/calgranulin B did not possess any chemotactic activity for MoDC. Our results provide evidence that C5a/C5adesarg although not specific for dendritic cells seems to be the major chemoattractant for these cells in lesional psoriasis skin.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Copenhagen : Munksgaard International Publishers
    Experimental dermatology 9 (2000), S. 0 
    ISSN: 1600-0625
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract: The etiology and pathogenesis of psoriasis – one of the most common chronic, inflammatory, hyperproliferative skin disorders of man – have long fascinated dermatologists, pathologists and biologists alike. Here, we have a model disease that offers to study neuroectodermal-mesenchymal interactions in the widest sense possible. Epithelial, endothelial, and hematopoietic cells as well as neurons projecting into the skin apparently all interact with each other to generate the characteristic psoriatic lesion. For decades, the ongoing controversy on the molecular nature, choreography and hierarchy of these complex interactions e.g. between epidermal keratinocytes, T cells, neurotrophils, endothelial cells and sensory nerves has served as a driving force propelling investigative dermatology to ever new horizons. This debate has not only been at the heart of our quest to develop more effective forms of therapy for this socially crippling disease, but it also has profoundly influenced how we view the skin as a whole: the numerous competing theories on the pathogenesis of psoriasis published so far also are reflections on the evolution of mainstream thought in skin biology over the last decades. These days, conventional wisdom – infatuated with a T-cell-centered approach to inflammatory skin diseases – portrays psoriasis as an autoimmune disease, where misguided T lymphocyte activities cause secondary epithelial abnormalities. And yet, as this CONTROVERSIES feature reminds us, some authoritative “pockets of academic resistance” are still quite alive, and interpret psoriasis e.g. as a genetically determined, abnormal epithelial response pattern to infectious and/or physicochemical skin insults. Weighing the corresponding lines of argumentation is not only an intriguing, clinically relevant intellectual exercise, but also serves as a wonderful instrument for questioning our own views of the skin universe and its patterns of deviation from a state of homeostasis.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Munksgaard International Publishers
    Allergy 57 (2002), S. 0 
    ISSN: 1398-9995
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background: To gain insight into the mechanisms responsible for tissue neutrophil immigration in sinusitis, primary nasal fibroblasts are analyzed for synthesizing and delivering neutrophil chemokines.Methods: Primary nasal fibroblast cell culture was treated with tumor necrosis factor (TNF)-α concentrations of 20 and 200 ng/ml for 2, 8, 24 and 72 h. Chemokine concentrations in supernatants were determined by enzyme-linked immunoassay (ELISA) and chemokine mRNA expression in fibroblasts was measured by reverse transcriptase polymerase chain reaction (RT-PCR). Biological chemotactic activity was identified by three-step high-performance liquid chromatography (HPLC) and by bioassay measuring neutrophil chemotaxis in a single Boyden chamber system.Results: Interleukin (IL)-8 and growth-related oncogene (GRO)-α were induced in nasal fibroblast culture by proinflammatory stimulus. After 24 h of stimulation neutrophil chemotactic activity only was detected for IL-8. Granulocyte chemotactic protein (GCP)-2 mRNA was already significantly up-regulated after 2 h of stimulation.Conclusion: Induction of IL-8 protein dominates chemokine synthesis 24 and 72 h after stimulation, whereas induction of GCP-2 mRNA seems to have a role in the early phase after 2 h of exposition with TNF-α.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 31 (1985), S. 1229-1230 
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 76 (1964), S. 344-345 
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 80 (1968), S. 118-119 
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 76 (1964), S. 890-890 
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Tetrachlorkohlenstoff läßt sich aus Phosgen bei 300 bis 450°C darstellen, wenn man die Reaktion durch Übergangsmetalle der V. bis VIII. Gruppe des Periodensystems auf Aktivkohle katalysiert. Statt Phosgen sind auch Kohlenmonoxyd und Chlor als Ausgangsstoffe brauchbar.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part B: Polymer Physics 29 (1991), S. 1607-1612 
    ISSN: 0887-6266
    Keywords: neutron scattering (SANS) from hot stretched polystyrene ; polystyrene, hot stretched, SANS study of ; chain deformation in hot stretched polystyrene, SANS study of ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Small-angle neutron scattering (SANS) has been used to investigate macromolecular orientation of uniaxially hot-stretched partially deuterated polystyrene. Principle radii of gyration and degree of eccentricity were measured over a range of hot-stretch temperatures, strain rates, and external draw ratios (EDR). Results show affine deformation for EDR 〈4 and an increase in the degree of local molecular orientation with increasing rate of strain and decreasing stretching temperature. It also is found that although the macromolecules follow the external stretching affinely on average, they do not deform uniformly.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 60 (1988), S. 152-153 
    ISSN: 0009-286X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
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