Human Hematopoietic Stem Cells Can Survive In Vitro for Several Months

Figure 1

Appearance of the cells attached to feeder cells. Representative examples of CD34(+) human hematopoietic stem/progenitor cells cultured on either OP9 feeder cells ((a), (c)) or C3H10T1/2 feeder cells ((b), (d)) for 7 days ((a), (b)) or 22 days ((c), (d)).

(a)

(b)

(c)

(d)