ISSN:
0886-1544
Keywords:
sponge dissociates
;
cell migration
;
time-lapse analysis
;
cell aggregation
;
Life and Medical Sciences
;
Cell & Developmental Biology
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Biology
,
Medicine
Notes:
The production of both lamellipodia and peculiar thin protuberances (scleropodia) characterizes the preaggregative motility of cells after dissociation of the sponge Clathrina.The locomotory paths taken by cells before aggregation were recorded by time-lapse microcinematography. Changes of direction in successive 50-s time intervals and 50-s mean velocities of each cell were both taken into account as statistical variables. Their distributions give probability density curves that seem to fit bilateral exponential functions. The analysis of the angles of turn indicates a tendency for the cells to persist in their direction of motion and to make counter-clockwise turns. Implications of such in vitro cellular behaviors in aggregative and in vivo processes are suggested.
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cm.970050604
Permalink
