Flow cytometry profiles of CellTrace labeled myosphere-derived cells.

<p>(A–B) Representative flow cytometry profiles of (A) younger and (B) older CellTrace labeled myosphere-derived cells. Myosphere-derived cells represented in (A) had remained in culture for 16–24 days and those in (B) for >36 days. (C–D) Representative flow cytometry profiles showing the expression of (C) α7 integrin and (D) PDGFRα in 16 day old CellTrace labeled myosphere-derived cells. (E) Graph showing the percentage of myosphere-derived cells that retain CellTrace label while expressing α7 integrin or PDGFRα. N = 4 independent isolations for the data presented in (A–E). **p = 0.0037 by unpaired Student’s t test.