Abstract
Spreading of postmitotic daughter cells was examined using time-lapse microscopy. The work was performed on unsynchronized cells of a permanent L-929 cell line. The study aimed at formalizing the comparison of the moving cell area and estimating whether the area of migrating cells was changed randomly or nonrandomly. Two new parameters are proposed for comparison of cell morphology: the identity indicator and the synchronism indicator. To calculate these parameters, time-dependent changes of the area in cell pairs were measured. The first indicator shows the degree of coincidence between the absolute area values in the cell pairs, whereas the second indicator shows synchronism in the changes of cell areas and does not depend on their absolute values. The low indicators were a high similarity in the time-dependent changes of the cell area. The indicators were shown to be approximately 1.5-fold lower for the pairs of the postmitotic daughter cells than those for any other pair of the cells. The results point to a nonrandom character of the changes of cultured cell morphology.
Published Version
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