PMID- 3688822 OWN - NLM STAT- MEDLINE DCOM- 19880119 LR - 20071114 IS - 0091-7370 (Print) IS - 0091-7370 (Linking) VI - 17 IP - 6 DP - 1987 Nov-Dec TI - Videoanalysis of chemokinesis: characterization of speed, persistence and orientation in an agarose assay. PG - 389-97 AB - Time-lapse video recording and off-line computer analysis were used to characterize the chemokinetic behavior of individual human neutrophils migrating in an agarose assay. When neutrophils were stimulated with an isotropic concentration of formyl-methionyl-leucyl-phenylalanine (fMLP), they migrated with a mean speed of 9.6 micron per min and oriented at random. The ratio of net displacement to total distance travelled (persistence of locomotion) was 0.66, indicating that neutrophils maintained some directional persistence even in the absence of a gradient of fMLP. The speed and persistence of locomotion index were correlated because both faster and slower cells had high persistence, while only slower cells had low persistence. The orientation angle was independent of both speed and persistence of locomotion. These are the first reported direct measurements of the chemokinetic locomotion of neutrophils using the agarose assay. FAU - Burton, J L AU - Burton JL AD - Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston 29425. FAU - Bank, H L AU - Bank HL FAU - Law, P AU - Law P LA - eng GR - AM18115/AM/NIADDK NIH HHS/United States PT - Journal Article PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Ann Clin Lab Sci JT - Annals of clinical and laboratory science JID - 0410247 RN - 59880-97-6 (N-Formylmethionine Leucyl-Phenylalanine) RN - 9012-36-6 (Sepharose) SB - IM MH - *Chemotaxis, Leukocyte MH - Computers MH - Humans MH - N-Formylmethionine Leucyl-Phenylalanine/pharmacology MH - Neutrophils/*physiology MH - Sepharose MH - *Video Recording EDAT- 1987/11/01 00:00 MHDA- 1987/11/01 00:01 CRDT- 1987/11/01 00:00 PHST- 1987/11/01 00:00 [pubmed] PHST- 1987/11/01 00:01 [medline] PHST- 1987/11/01 00:00 [entrez] PST - ppublish SO - Ann Clin Lab Sci. 1987 Nov-Dec;17(6):389-97.