Lineage-depleted (Lin−) NR4A1GFP transgenic (Tg)
reporter mouse bone marrow (BM) cells were isolated, stained and analyzed by
flow cytometry. Non-Tg littermates were used as controls (grey). (A) Relative
NR4A1GFP expression levels in hematopoietic subpopulations: Myelo
Prog, myeloid-committed progenitors
(Lin−Sca-1−c-Kit+); LSKs,
Lin−Sca-1+c-Kit+ cells; LT-HSCs,
long-term hematopoietic stem cells. (B) Proportional contribution of LT-HSC
compartment (CD150+CD48−) to LSKs with increasing
NR4A1GFP expression levels. Data are from four independent
experiments, each using 1-2 NR4A1GFP Tg mice and 1-2 non-Tg
littermate control mice. P-values were calculated using unpaired, one-tailed
student’s t-test.