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Updated: Jul 5, 2026

Isolation of Tonsillar Mononuclear Cells to Study Ex Vivo Innate Immune Responses in a Human Mucosal Lymphoid Tissue
Published on: June 14, 2020
Isolation of mononuclear cells from tonsillar tissue
1National Institute of Allergy and Infectious Diseases, Bethesda, Maryland, USA.
This unit describes a protocol for the derivation of lymphoid cell populations from tonsillar tissue. The procedure can also be applied with little or no modification to spleen and lymph node tissue. Human tonsils are the most readily available lymphoid organs and are often used as a source of large numbers of cells characteristic of local lymphoid tissue. Mononuclear cells are isolated by mechanical disruption of tonsil tissue followed by Ficoll-Hypaque gradient centrifugation. Cells may then be separated into subpopulations according to general protocols used for peripheral blood lymphocytes.
This unit describes a protocol for the derivation of lymphoid cell populations from tonsillar tissue. The procedure can also be applied with little or no modification to spleen and lymph node tissue. Human tonsils are the most readily available lymphoid organs and are often used as a source of large numbers of cells characteristic of local lymphoid tissue. Mononuclear cells are isolated by mechanical disruption of tonsil tissue followed by Ficoll-Hypaque gradient centrifugation. Cells may then be separated into subpopulations according to general protocols used for peripheral blood lymphocytes.
