Mast Cells from Human Respiratory Tissue and Their in vitro Reactivity
Roy Patterson 1,
Louis R. Head 1,
Irena M. Suszko 1, and
C. Raymond Zeiss Jr. 1
1 Section of Allergy-Immunology, Department of Medicine; Department of Surgery, Northwestern University Medical Center, Chicago, Illinois 60611
Human respiratory mast cells, which were obtained coincidentally with diagnostic bronchial brush biopsy, were maintained under conditions for short-term tissue culture. Most mast cells were viable and degranulated on exposure to antibody to immunoglobulin E or to the mast cell degranulating agent compound 48-80. The degranulation of human mast cells is characteristically an intracellular process with no extracellular extrusion of granules.