Intriguingly, when the arrival of new progenitors (and therefore competition) was abolished, resident progenitors over-proliferated, ultimately resulting in tumor formation.
We detected a threefold increase in lipid oxidation and a twofold increase in carbonylated proteins in 2-day cultures of limb mesodermal progenitors over-expressing Btg2 (Fig. 3C).
The progenitor and over-expression isolates demonstrated indistinguishable growth rates and colony morphology when grown on ZTSC medium (Figs. 2 and 3), indicating that homologous replacement of the ku70 locus with pCCKH vectors does not detectably impact in vitro growth on defined rich medium.
This SCF variant elicited biased activation of hematopoietic progenitors over mast cells in vitro and in vivo.
Less could have been heard of the saxophonist who pulled the evening into the realm of a dinner dance; and while no-one would want to quarrel with the show's progenitors over the influence or adaptability of flamenco, for these tastes the lapses into jazz were just that.
We quantified the size of clones labeled at different embryonic stages and found that the average clone size decreased progressively as development proceeded, which is consistent with an overall reduction in the proliferative and neurogenic potential of progenitors over time.
It is fair to say that no robust, long-term culture system exists today that is capable of maintaining potent, clonal expansion of adult non-transformed pancreas progenitors over long periods of time under defined conditions.
Overall, our current data suggest that the profound reduction in mammary repopulating activity combined with the predominance of progenitors over MaSC-containing compartment in the RARα1/KO, by reducing wnt1 target might contribute to the delay in wnt1-tumor development.
As humans age, progenitor cells take over from stem cells the task of producing a steady supply of blood cells.
The theory that Adam had such jurisdiction and passed it to successors by primogeniture or by his will must be rejected, since Adam's power was domestic, not political; natural law does not make the progenitor king over his posterity.
