{'fraction_non_alphanumeric': 0.023809523809523808, 'fraction_numerical': 0.007142857142857143, 'mean_word_length': 5.5703125, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
EXPRESSION OF OKT 8 ANTIGEN AND Fcγ RECEPTORS BY SUPPRESSOR CELLS MEDIATING SPECIFIC UNRESPONSIVENESS BETWEEN RECIPIENT AND DONOR IN RENAL‐ALLOGRAFT-TOLERANT PATIENTS

Renal allograft tolerant patients show specific unresponsiveness in mixed-lymphocyte culture assays when confronted with donor stimulating cells. Separation of posttransplant peripheral blood lymphocytes into Fe γ+ and Fc γ- by rosetting and into OKT8+, OKT8- by cytofluorometry enabled the demonstration of normal responses by Fc γ- and OKT8- cells, whereas the proliferation of OKT8+ and Fc γ+ cells was depressed specifically in the presence of donor cells. Using mixing experiments, we showed that OKT8+ and Fc γ+ posttransplant lymphocytes exert a suppressive effect specific to the donor-recipient pair on the proliferative response of the pretransplant lymphocytes.