Changes in self-renewal potential of human leukemic cells (K562): a bidirectional stochastic process.
Daughter cells arising from a single cell division in the leukemic cell line K562 have equivalent self-renewal potential with respect to their ability to form clones in semisolid medium. However, individual cells isolated from these clones in sequence have vastly different abilities in their self-renewal potentials. Thus, cells originating from a clone with any particular self-renewal potential exhibit the full range of self-renewal potentials--from highly renewing to none renewing, cells. These results show that self-renewal potential in the K562 cell line is a random, reversible and partially noninherited characteristic. It is suggested that the stochastic variability of the intraclonal self-renewal potential of K562 progeny cells either reflects the initial expression of a differentiation program or the expression of the predeterministic portion of the normal myelopoietic differentiation pathway.
D002454:Cell Differentiation; D002455:Cell Division; D002460:Cell Line; D002999:Clone Cells / Q000473:pathology; D006454:Hemoglobins / Q000032:analysis; D006801:Humans; D015470:Leukemia, Myeloid, Acute / Q000473:pathology*; D013234:Stem Cells / Q000032:analysis / Q000473:pathology*; D013269:Stochastic Processes
D006454:Hemoglobins