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  • 1985-1989  (8)
Material
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Scandinavian journal of immunology 26 (1987), S. 0 
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Activation of the terminal pathway of complement on a membrane results in the generation of the membrane-damaging terminal C5b-9(m) complement complex, whereas the non-lytic water-soluble SC5b-9 complex is formed when complement is activated in the fluid phase. Both forms of the terminal complement complex (TCC) can be immunohistochemically detected. but not distinguished, by antibodies recognizing neoantigens in the complexes. By means of monoclonal antibodies against C9 neoantigens and against the S-protein. it was demonstrated that deposits of the TCC in tissue sections may be either in the form of C5b-9(m) or SC5b-9. The consequences of this for the interpretation of the histochemical data and the terminology of the two complexes are discussed.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Scandinavian journal of immunology 25 (1987), S. 0 
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Monoclonal antibodies to Mycobacterium leprae were characterized in crossed immunoelectrophoresis and showed markedly different patterns of reactivity with M. leprae lines 2, 7 and 11 respectively. Line 7 corresponds to a cell wall-associated macromolecular complex containing lipid, polysaccharide, and two distinct 36 K and 65 K proteins.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Scandinavian journal of immunology 30 (1989), S. 0 
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: On the basis of a previously developed reference system for Mycobacterium bovis, BCG, in crossed immunoelectrophoresis (CIE), antigens of Mycobacterium tuberculosis were identified in an analogous system. A majority of the numbered lines in the BCG system were also present and identified in the M. tuberculosis system. The corresponding antigens in the two systems were identified by dual dilution in CIE, and using monospecific antisera and monoclonal antibodies. Some of the antigens were specifically identified by the demonstration of enzyme activity and by means of hydroxyapatite, concanavalin A (Con A), EDTA, and blue–Sepharose. Three antigens (nos 10, 78, and 81), which were found in high concentrations in M. tuberculosis culture fluid, were not identified or were present in low concentrations in BCG culture fluid. The high percentage of corresponding antigens confirms that there is a very close taxonomic relationship between BCG and M. tuberculosis. Corresponding antigens in BCG and M. tuberculosis did not differ in electrophoretic mobility in the antigenic preparations studied.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Scandinavian journal of immunology 22 (1985), S. 0 
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The specificity of monoclonal antibodies against Mycobacterium tuberculosis was determined by crossed immunoelectrophoresis, Radiolabelled, non-precipitating monoclonal antibody was incorporated in the top gel together with unlabelled polyvalent, precipitating anti-bacillus Calmette-Guérin (BCG) antibody. Inclusion of labelled antibody in individual precipitate fines was demonstrated by autoradiography. Each monoclonal antibody was localized in a single precipitate line: antibody TB73 reacted with BCG antigen 56: TB71 and TB72 reacted with BCG antigen 78: and TB78 reacted with BCG antigen 82. The technique permits precise determination of the specificity of monoclonal antibodies at the level of reactivity with native immunogenic components of complex microorganisms without prior antigen purification.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Scandinavian journal of immunology 22 (1985), S. 0 
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The terminal complement complex (TCC), consisting of C5b, C6, C7, C8, and C9, contains neoantigens that are absent from the individual native components. Neoantigens are present both in the membrane-bound (MAC) and the fluid-phase (SC5b-9) complex. The present study describes production of monoclonal antibodies against neoantigens of both forms of the TCC. A convenient screening and detection system, based mainly on enzyme-linked immunosorbent assays, crossed immunoelectrophoresis with autoradiography, and affinity chromatography with subsequent sodium dodecyl sulphate-polyacrylamide gel electrophoresis including immunoblotting, is described in detail. Two monoclonal antibodies were specific for a neoantigen located in the poly(C9) moiety of the TCC. One of these antibodies, MCaE11, was used for immunohistochemical detection of MAC in tissue and for quantification of the fluid-phase TCC in ethylenediaminetetraacetic acid plasma.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Scandinavian journal of immunology 22 (1985), S. 0 
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: A mouse monoclonal antibody (038D-C6) was shown by crossed immunoelectrophoresis and radioimmunoassay to react with an epitope on the Mycobacterium leprae antigen 7. This epitope was highly crossreactive with BCG/M. tuberculosis and of a non-arabinogalactan-arabinomannan nature. A solid-phase radioimmunoassay (SPRIA) was applied, based on competitive inhibition by human sera of antigen binding by this anti-M. leprae monoclonal antibody. Inhibitory activity determined by this assay decreased markedlyupon treatment in both lepromatous and tuberculoid leprosy patients. A correlation was found between the bacterial load of the patient and the inhibitory activity measured in the SPRIA assay. Serum-inhibitory activity could therefore perhaps be used as a follow-up test for patients on treatment or as a screening method to detect infective cases. A dot enzyme-linked immunosorbent assay based, like the SPRIA assay, on competitive inhibition by human sera, was explored as an inexpensive and technically simple alternative also applicable under field conditions.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The fluid-phase terminal complement complex (TCC), consisting of the components C5b, C6, C7, C8, C9, and the S-protein, has recently been detected in normal human plasma by using antibodies against native terminal complement components. Increased amounts of TCC were then found in several patients with in vivo activation of complement. We now describe a sensitive, specific, and reliable enzyme-linked immunosorbent assay for quantification of the TCC, based on monoclonal antibodies against a neoantigen of the complex. The results indicate that the TCC is present in normal human plasma and in increased amounts in patients with complement activation in vivo, thus confirming previously obtained results. The assay is easy to perform and can be used for examination of large numbers of plasma samples.
    Type of Medium: Electronic Resource
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