title: Two-layer gradient separation of granulocytes for functional tests.
abstract: Two gradient separation techniques were compared with the dextran sedimentation method for the separation of granulocytes from blood. Both techniques gave adequate yield and excellent purity, and flow cytometric analysis of surface membrane markers gave no indication of subset selection during the procedure. Cells separated by the three methods behaved comparably in functional tests including random migration, chemotaxis and chemiluminescence. The gradient separation techniques are rapid and efficient methods for the preparation of near 100% pure granulocyte suspensions for functional studies.
authors.affiliation: Medical Department B, University of Bergen, Haukeland Hospital, Norway.
authors.forename: A
authors.initials: A
authors.lastname: Naess
authors.forename: H
authors.initials: H
authors.lastname: Sjursen
authors.forename: I
authors.initials: I
authors.lastname: Talstad
authors.forename: C O
authors.initials: CO
authors.lastname: Solberg
mesh_terms: D002465:Cell Movement / Q000502:physiology; D002469:Cell Separation / Q000379:methods; D002499:Centrifugation, Density Gradient / Q000379:methods*; D002634:Chemotaxis, Leukocyte / Q000502:physiology; D003911:Dextrans; D005434:Flow Cytometry; D006098:Granulocytes / Q000166:cytology* / Q000502:physiology; D006801:Humans; D008163:Luminescent Measurements; D009345:Neisseria meningitidis / Q000502:physiology; D015054:Zymosan
chemical_list: D003911:Dextrans; D015054:Zymosan