title: A two step stain for normal and leukemic monocytes using two different dyes applied in sequence.
abstract: A staining procedure for monocytes in specimens of blood and bone marrow was developed. The technique was a two step procedure in which unfixed cells were exposed first to a methanolic solution of C.I. basic blue 54. Next, an aqueous alkaline buffered solution of C.I. basic blue 141 was added to the first staining solution. After staining for 10 min in the solution with two stains, slides or coverslips were washed for 5 sec in pH 5.6 phosphate buffer and drained dry. The cytoplasm of monocytes stained intensely deep purple and frequently nuclei were stained red. Similar staining was not found in other types of normal or abnormal blood and bone marrow cells.
authors.affiliation: Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, Ohio.
authors.forename: L
authors.initials: L
authors.lastname: Kass
mesh_terms: D002021:Buffers; D002467:Cell Nucleus / Q000648:ultrastructure; D002843:Chromatin / Q000737:chemistry; D003593:Cytoplasm / Q000648:ultrastructure; D004900:Erythroblasts / Q000166:cytology / Q000648:ultrastructure; D016591:Histocytological Preparation Techniques; D006801:Humans; D015470:Leukemia, Myeloid, Acute / Q000097:blood / Q000473:pathology*; D009000:Monocytes / Q000166:cytology* / Q000648:ultrastructure; D009504:Neutrophils / Q000166:cytology / Q000648:ultrastructure; D010710:Phosphates; D054198:Precursor Cell Lymphoblastic Leukemia-Lymphoma / Q000097:blood / Q000473:pathology*; D013194:Staining and Labeling / Q000379:methods; D013997:Time Factors
chemical_list: D002021:Buffers; D002843:Chromatin; D010710:Phosphates