Abstract
Suspensions of lymphoid cells from tissues have been used for the determination of the quantitative relationship between the T and B cell populations. The distribution of the lymphocytes within a given tissue, however, cannot be demonstrated once such a suspension has been prepared. Various methods of characterizing lymphocytes within tissues were evaluated. The method of tissue preparation can alter the capability of detecting the lymphocyte markers. Fluorescein-labeled anti-immunoglobulin sera reacted equally well with lymphocytes in tissue regardless of the method of tissue preparation. Complement-coated sheep erythrocytes were less effective in detecting lymphocyte markers in tissue sections than in cell suspensions. Quantitative assays of lymphocytes could be done in suspensions only. Unaltered sheep erythrocytes did not bind to T lymphocytes in tissue. T lymphocytes could be identified in tissue sections, however, by the use of anti-human T cell serum.
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