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  • Title: Demonstration of keratin filaments in thymic nurse cells (TNC) and alloreactivity of TNC-T cell population.
    Author: Vakharia DD.
    Journal: Thymus; 1983; 5(1):43-52. PubMed ID: 6189269.
    Abstract:
    In vitro cultured epithelial reticular cells from foetal thymic explants and thymic nurse cells (TNC) demonstrate the presence of keratin filaments in the cytoplasm. Keratin-positive cells of cultured thymic epithelium are heterogeneous in size and shape as are TNC. T cells inside the nurse cells (TNC-T) ooze out after 18 h of incubation at 37 degrees C. The alloreactivity of these T cells was compared with that of thymocytes and lymph node (LN) cells in a miniaturised mixed lymphocyte reaction using hanging drops set up in Terasaki plates. AKR TNC-T cells and LN cells showed significant proliferative response when stimulated by BALB/c LN cells. No significant proliferative response was shown by non-TNC thymocytes. The data suggest that TNC harbour a mature sample of the T-cell population as judged by alloreactivity.
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