Comparative immunostaining of T-associated plasma cells and other lymph-node cells in paraffin sections (original) (raw)

Summary

The immunoperoxidase technique after trypsinization was used on paraffin sections of 24 lymph nodes with reactive lymphadenitis and abudant nests of T-associated plasma cells. These cells were negative for all the markers investigated, which were: intracytoplasmic immunoglobulins (CIg), a1-antichymotrypsin(a1 -ACT), a1 -antitrypsin (a1 -AT), lysozyme(Lz) and fibronectin. Other categories of cells were positive or negative depending on their type. The best markers for polymorphs proved to be a1-AT and Lz, and for monocytes and histiocytes a1-ACT and Lz. Sinus histiocytes in particular were much more constantly and strongly positive for a1-ACT than for Lz. Endothelial cells appeared almost always positive for a1-ACT and were also occasionally positive for a1-AT. Fibronectin was consistently positive in mast cells and sometimes positive in other cells, especially those of monihistiocytic origin.

Our present findings are against a B-cell or monohistiocytic origin for T-associated plasma cells.

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Authors and Affiliations

  1. Department of Pathological Anatomy, School of Medicine, University of Ioannina, Ioannina, Greece
    Constantin S. Papadimitriou, Stella N. Stephanaki-Nikou, Vasiliki & D. Malamou-Mitsi

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  1. Constantin S. Papadimitriou
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  2. Stella N. Stephanaki-Nikou
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  3. Vasiliki
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  4. D. Malamou-Mitsi
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Papadimitriou, C.S., Stephanaki-Nikou, S.N., Vasiliki et al. Comparative immunostaining of T-associated plasma cells and other lymph-node cells in paraffin sections.Virchows Archiv B Cell Pathol 43, 31–36 (1983). https://doi.org/10.1007/BF02932940

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