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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Virchows Archiv 413 (1988), S. 563-571 
    ISSN: 1432-2307
    Keywords: Fetal lymphoid tissue ; Immunohistology ; Monoclonal antibodies ; Ontogeny ; Paraffin embedded tissues
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Spleen, thymus and lymph node of human fetuses from the 12th to the 38rd week (spleen from 9 weeks) were investigated in an immunohistological study on B5-fixed paraffin embedded tissues, employing a panel of recently developed monoclonal antibodies, reactive with antigens resistant against fixation and paraffin embedment. The monoclonal antibodies included were MT1, MT2, MB1, MB2, MB3, LN1, LN2, LN3, LeuM1, Leu7, VIE-G4, together with polyclonal antibodies reactive with immunoglobulin heavy and light chains, and with lysozyme and S100-protein. The preservation of morphological detail together with immunoperoxidase staining of cellular subsets, allowed an accurate determination of the ontogenic development of the different cell types in situ, in relation to their micro-environment. The use of paraffin tissue reactive (monoclonal) antibodies gives an extra dimension to the study of fetal lymphoid tissues. This is of particular advantage in studies on very fragile tissues as in early embryonal and fetal ontogeny.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-0851
    Keywords: Key words Immunotherapy ; Sialyl-Tn ; MUC-1 ; CD69 ; CA27.29 ; Immune suppression
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Patients with metastatic breast, colorectal or ovarian cancers received active specific immunotherapy (ASI) with Theratope® sialyl-Tn-KLH (keyhole limpet hemocyanin) cancer vaccine emulsified in Detox™ adjuvant. The median log2 anti-STn IgG titer generated by ASI, estimated by enzyme-linked immunosorbent assay with solid-phase ovine submaxillary mucin, was 5.322 (range = 0 – 9.322). Following ASI, 51 patients who generated titers higher than the median value for anti-STn+ mucin IgG survived longer than 46 patients who generated lower titers below the median. 38 of the patients were phenotyped for CD69 prior to ASI. The patients with lower numbers of CD69+ peripheral blood lymphocytes prior to immunotherapy (pre-ASI) also had low serum CA27.29 cancer antigen (MUC-1) levels, and had longer times to disease progression and improved survival following ASI. Elevated pre-ASI serum CA27.29 tumor antigen levels were associated with higher numbers of CD69+ PBL, with decreased anti-STn antibody production and decreased survival following ASI. The data are compatible with the hypothesis that elevated serum MUC-1 mucin is specifically immunosuppressive.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Microscopy Research and Technique 28 (1994), S. 356-367 
    ISSN: 1059-910X
    Keywords: Hairy cell leukemia ; Immunogold labelling ; B-ly7 antibody ; Electron microscopy ; Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Natural Sciences in General
    Notes: Two cases of hairy cell leukemia have been studied by immuno-TEM and immuno-SEM after immunogold labelling of the cell surface antigen recognized by the B-ly7 monoclonal antibody.Most hairy cells appeared significantly labeled, although the density of the expression of the antigen, as demonstrated by immunogold labelling, seems variable from cell to cell. Moreover, some cells with the morphology of hairy cells and which could not be identified as monocytes were not labeled. Labelling for the antigen identified by the B-ly7 mAb does not seem to correlate with the presence of ribosome lamellae complexes which were present only in one of the two cases studied. Rare lymphocytes of unidentified lineage were labeled. Monocytes were significantly absent from the samples of peripheral blood of the two patients studied. In one normal control sample, monocytes were observed unlabelled.The results are discussed in reference to the pathogenesis of hairy cell leukemia, its surprisingly low mitotic rate, and its distinct response to chemotherapy. © 1994 Wiley-Liss, Inc.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
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