The presence of mast cells in agar cultures.
Using a specific stain and electron microscopy, small numbers of mast cells were detected in human bone marrow cultures. However, they were not detected in agar cultures containing murine bone marrow cells. In bone marrow cultures from three patients with acute myeloid leukemia the number of mast cells was elevated.
D000362:Agar; D000818:Animals; D001854:Bone Marrow Cells; D002471:Cell Transformation, Neoplastic; D002478:Cells, Cultured; D003594:Cytoplasmic Granules; D006801:Humans; D007951:Leukemia, Myeloid / Q000097:blood; D008407:Mast Cells; D051379:Mice; D008807:Mice, Inbred BALB C; D008810:Mice, Inbred C57BL; D013194:Staining and Labeling
D000362:Agar