A method for the separation of lymphocytes and plasma cells from the human palatine tonsil using sedimentation in an isokinetic gradient of Ficoll in tissue culture medium

J. K V Willson, D. E. Luberoff, A. Pitts, T. G. Pretlow

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8 Scopus citations


Several methods for the dissociation of human tonsils into cell suspensions were compared. Dissociation of tonsils using 0.25% trypsin gave both the largest number of total cells, and the largest number of plasma cells per gram of tonsil. Lymphocytes and plasma cells were separated in a previously described isokinetic gradient of Ficoll in tissue culture medium. In the purest gradient fractions, lymphocytes were 97.2% ± 1.9% of nucleated cells. The purest gradient fractions contained 43.1% ± 5.9% plasma cells. More than 95% of purified lymphocytes and plasma cells excluded Trypan Blue.

Original languageEnglish (US)
Pages (from-to)161-170
Number of pages10
Issue number1
StatePublished - Dec 1 1975


ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology

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