title: Separation of mouse lymphoblasts by discontinuous density centrifugation on Percoll gradients.
abstract: Mouse lymphoblasts generated in vivo by a topical application of the contact sensitizer oxazolone or by the contents of the gut lumen were separated by discontinuous density centrifugation on Percoll gradients. A 3-step gradient was used to divide the cells into two subpopulations. For cells from oxazolone stimulated lymph nodes, the low density band contained 20-30% of the initial cell number applied to the gradient; 25-40% of this population were in S phase and nearly all the large and pyroninophilic cells were confined to this layer. The high density step cells (70-80% of initial cell number) were predominantly small lymphocytes with less than 0.5% in S phase. Similar results were obtained using cells from picryl chloride stimulated lymph nodes or from mesenteric lymph nodes.
mesh_terms: D000818:Animals; D002469:Cell Separation / Q000379:methods*; D002499:Centrifugation, Density Gradient; D008198:Lymph Nodes / Q000166:cytology / Q000276:immunology; D008213:Lymphocyte Activation; D008214:Lymphocytes / Q000276:immunology*; D008643:Mesentery / Q000166:cytology / Q000276:immunology; D051379:Mice; D008807:Mice, Inbred BALB C; D008808:Mice, Inbred CBA; D010081:Oxazolone / Q000494:pharmacology
chemical_list: D010081:Oxazolone