Although they found label-retaining cells, they were not within the putative stem cell compartment.

EpoR expression can extend as far back as the hematopoietic stem cell compartment.

By corollary, this result shows that the hematopoietic stem cell compartment is also heterogeneous by dynamical criteria.

With increasing lengths of time for the chase periods, these label-retaining cells were located farther from the putative stem cell compartment, suggesting that the label-retaining cells had moved.

Within the hematopoietic system, Msi2 is highly expressed in the most primitive progenitors, in stem cell compartments, and its overexpression has been found in myeloid leukemia cell lines.

Using the ratio of lymphoid (L) to myeloid (M) cells in blood as a quantitative marker, the stem cell compartment can be split into three categories of HSC.

She described the work as a "very important finding" because it localized the skin's stem cell compartment and showed that the stem cells in the bulge are pluripotent, meaning they can develop either into hair cells or skin cells.

These processes are regulated by gene expression and in health, asymmetric stem cell division provides a steady state, in which the stem cell compartment is maintained and the differentiated lineages are produced at rate equal to their losses.