Figure 1.
FL-MSC characterization. (a) Morphology of primary layers of adherent MSCs isolated from human fetal liver at low, medium, and high confluence. Magnification: 100x. (b) Cell surface markers expression profile in FL-MSCs. CD31, CD34, CD45, CD73, CD90, and CD146 markers were analyzed using flow cytometry. Immunopositive expression is shown as histograms (red) and compared to corresponding control isotypes IgG (black). The flow cytometry histograms are representative of at least three cell populations isolated from different livers.