title: A simple method for observation of phagocytosis on bacterial thin-layer.
abstract: A simple method was developed to visually present the phagocytic activity of leukocytes by using adherent Staphylococcus aureus cells and blood applied on a plastic dish. When heparinized blood was applied on thin-layer of heat-killed S. aureus cells on the plastic dish, plaques due to the phagocytic activity of leukocytes were observed with a microscope under a low magnification. Fewer and smaller plaques were observed when plasma-deprived rather than whole blood was used. Some analyses were made in respect to the fundamental conditions required for optimal results. This method was considered to be useful for conveniently evaluating the serum opsonin activities and phagocytic function of leukocytes in various kinds of diseases.
authors.affiliation: Department of Bacteriology, Jikei University School of Medicine, Tokyo.
authors.forename: K
authors.initials: K
authors.lastname: Seki
authors.forename: M
authors.initials: M
authors.lastname: Murai
authors.forename: J
authors.initials: J
authors.lastname: Sakurada
authors.forename: A
authors.initials: A
authors.lastname: Shirahige
authors.forename: N
authors.initials: N
authors.lastname: Kobayashi
authors.forename: S M
authors.initials: SM
authors.lastname: Hwang
authors.forename: S
authors.initials: S
authors.lastname: Masuda
mesh_terms: D000942:Antigens, Bacterial / Q000276:immunology*; D001770:Blood Bactericidal Activity; D006801:Humans; D007158:Immunologic Techniques; D007962:Leukocytes / Q000276:immunology*; D010587:Phagocytosis; D013211:Staphylococcus aureus / Q000276:immunology
chemical_list: D000942:Antigens, Bacterial