title: Effect of cryopreservation on lymphocyte markers evaluated by monoclonal antibodies.
abstract: Lymphocytes were frozen at a density of 5 to 10 X 10(6) cells per ml at 1 degree C per minute in a programmable liquid nitrogen freezer. T-subsets were determined by using monoclonal antibodies. A fluorescein-conjugated polyvalent antisera with B-cell specificity was used to define B-cells. No significant change in numbers of total T-lymphocytes or -subsets was identified in the frozen lymphocytes when compared to fresh controls. Liquid nitrogen cryopreservation is an acceptable method of storing lymphocytes for subsequent determination of T-subsets using monoclonal antibodies.
mesh_terms: D000911:Antibodies, Monoclonal; D000954:Antigens, Surface / Q000276:immunology*; D001793:Blood Preservation; D005615:Freezing; D006801:Humans; D013601:T-Lymphocytes / Q000276:immunology*
chemical_list: D000911:Antibodies, Monoclonal; D000954:Antigens, Surface