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In Vitro. 1978 Dec;14(12):996-1002.

Evidence for clonal attenuation of growth potential in HeLa cells.

Abstract

The growth of primary clones and serial subclones of HeLa cells and of diploid human fibroblast-like cells were compared both in the presence and absence of feeder layers; the latter had no significant effects upon the results. Clones and subclones of both cell types displayed great heterogeneity in growth rates, typically with a bimodality of growth distributions. Serial passages of clones selected on the basis of superior rates of proliferation showed attentuation of growth potentials; the extent of such attentuations was much less in the case of HeLa cells, suggesting at least one possible basis for the differences in long-term growth potential between these two classes of cell lines.

PMID:
738739
DOI:
10.1007/bf02616213
[Indexed for MEDLINE]

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