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  • 1990-1994  (3)
  • 1990  (3)
Material
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  • 1990-1994  (3)
Year
  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Scandinavian journal of immunology 32 (1990), S. 0 
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Immunoprecipitation of radioiodinated hairy cell leukaemia (HCL) cell lysates with monoclonal antibody (MoAb) HML-1. originally reported to recognize intraepithelial T cells, and with MoAb B-ly7, originally reported to react with HCL. led to identical biochemical characteristics. In SDS PAGE under reducing conditions, a major band of 143 kDa. a broad band ranging from 112 to 122 kDa. and two additional faint bands of 175 and 100 kDa could be determined. Deglycosylation of N-linked sugar moieties by treatment of immunoprecipitates with endoglycosidases indicated that the two main protein cores of the antigen are predominantly if not exclusively glycosylated by complex and hybrid types of oligosaccharide chains. Competitive binding inhibition demonstrated that both MoAb are directed against different epitopes. Immunohistochemically. the staining patterns obtained with both MoAb in normal tissues, in T-and B-cell lymphomas, and in HCL were identical except for a single case of HCL which was HML-1−/B-ly-7+, We conclude that MoAb HML-1 and B-1y7 recognize the same antigen.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Naturwissenschaften 77 (1990), S. 597-598 
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-2323
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Trente et un cas de tumeurs malignes de la thyroïde, classifiés à l'origine comme des carcinomes anaplasiques, ont été réexaminés en immunohistochimie pour la présence d'anticorps IgM, IgG, IgA, de cytocératine, calcitonine, lysocyme, et alpha1-antitrypsine en utilisant la méthode péroxydase/antipéroxydase. Les résultats de cette reclassification ont été comparés avec des données cliniques: symptômes cliniques, modalités thérapeutiques, et évolution clinique. On a employé la radiothérapie postopératoire dans 80% des cas et la chimiothérapie dans aucun cas. Sept des 31 tumeurs étaient positives pour les anticorps IgM (n=4), IgG (n=2), et IgA (n=1). Dans tous ces cas, les marqueurs épithéliaux étaient négatifs. De cette manière, on a pu reclasser comme lymphomes malins primitifs non seulement 3 tumeurs à petites cellules mais aussi 4 tumeurs avec des zones de cellules géantes.
    Abstract: Resumen Treinta y un casos de neoplasias malignas de la glándula tiroides originalmente clasificadas como carcinoma anaplásico fueron reexaminados por inmunohistoquímica utilizando métodos de peroxidosa:antiperoxidasa (PAP) para IgM, IgG, IgA, citoceratina, calcitonina, lisocina, y alfa-1-antitripsina. Los resultados de la reclasificación fueron comparados con la información clínica, incluyendo sintomatología, modalidades de tratamiento, y evolución final. Se realizó radioterapia postoperatoria en más de 80% de los casos, quimioterapia en ninguno. Siete de 31 tumores exhibieron tinción positiva para anticuerpos IgM (n=4), IgG (n=2), e IgA (n=1). Todos estos casos fueron negativos para marcadores epiteliales. Sorprendentemente, no sólo la totalidad de los tumores de células pequeñas (n=3) sino también 4 tejidos con áreas predominantes de células gigantes, estuvieron en el grupo de aquellos reclasificados como linfoma maligno.
    Notes: Abstract Thirty-one cases of thyroid malignancies which were originally classified as anaplastic carcinoma were reexamined immunohistochemically using PAP methods (peroxidase:antiperoxidase) for IgM, IgG, IgA, cytoceratin, calcitonin, lysozyme and alpha-1-antitrypsin. The reclassification results were compared with patient data such as clinical symptoms, treatment modalities, and clinical outcome. Postoperative radiotherapy was carried out in more than 80% of cases, chemotherapy in none. Seven of 31 tumors showed a positive staining for IgM (n=4), IgG (n=2), and IgA (n=1) antibodies. All of these cases were negative for epithelial markers. Surprisingly, not only all small cell tumors (n=3) but also 4 tissues with predominantly giant cell areas were among those reclassified as primary malignant lymphoma.
    Type of Medium: Electronic Resource
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