ROLE OF FC AND C3B RECEPTORS IN PHAGOCYTOSIS BY INFLAMMATORY POLYMORPHONUCLEAR LEUKOCYTES IN MAN
- 1 January 1977
- journal article
- research article
- Vol. 32 (6), 955-961
Abstract
Polymorphonuclear leukocytes from the gingival crevice (CREV-PMN) in man have a defective capacity to phagocytose Candida albicans blastospores. Phagocytosis of zymosan particles, which detect C3b [b fragment of complement component 3] receptors, is also impaired, but ingestion of latex beads coated with heat-aggregated Ig[immunoglobulin]G, which detects Fc receptors, is normal compared to peripheral blood polymorphonuclear leukocytes (PB-PMN). If phagocytosis is inhited by cytochalasin B, fewer CREV-PMN bind Candida and zymosan but the binding of IgG-coated latex beads remains unchanged. CREV-PMN have IgG (88%), IgM (45%) and C3 (48%) on their cell membrane, while less than 5% of PB-PMN have any of these components. Incubation of PB-PMN in fluid from the gingival crevice confers surface IgG and C3 to the cells. Such treatment also inhibits the subsequent binding of IgG coated latex beads. The deficiency of phagocytosis by CREV-PMN is probably due to decreased binding of particles to the C3b receptor of PMN, while the Fc receptor system remains intact.This publication has 17 references indexed in Scilit:
- Neutrophil Receptors for IgG and Complement: Their Roles in the Attachment and Ingestion Phases of PhagocytosisThe Journal of Immunology, 1976
- A crevicular washing method for investigating immune components of crevicular fluid in manJournal of Periodontal Research, 1976
- Complement and immunoglobulins stimulate superoxide production by human leukocytes independently of phagocytosis.JCI Insight, 1975
- Immunoglobulin phagocytosis by granulocytes from sera and synovial fluids in various rheumatoid and nonrheumatoid diseases.Annals Of The Rheumatic Diseases, 1975
- Immunoglobulins cytophilic for human lymphocytes, monocytes, and neutrophils.JCI Insight, 1975
- Phagocytic Function of Polymorphonuclear Leukocytes in Rheumatic DiseasesJCI Insight, 1973
- Cytochalasin B: Effect on Lysosomal Enzyme Release from Human LeukocytesProceedings of the National Academy of Sciences, 1973
- Immunoglobulins and complement in crevicular fluid, serum and saliva in manArchives of Oral Biology, 1972
- Receptors for human γG Globulin on human neutrophilsJCI Insight, 1970
- Presence of leukocytes in crevices of healthy and chronically inflamed gingivaeJournal of Periodontal Research, 1970