Fig. 6From: Pentosan polysulfate binds to STRO-1+ mesenchymal progenitor cells, is internalized, and modifies gene expression: a novel approach of pre-programing stem cells for therapeutic application requiring their chondrogenesisGraphical representation of the combined changes induced in mesenchymal progenitor cell (MPC) characteristic surface antigens expressed on cells from three donors (RAH1, RAH2, and RAH3) that had been cultured for 24 and 48Â h with and without priming with PPS. The raw data obtained by flow cytometric analysis is shown in Additional file 1. Delta represents the total difference (as a percentage) for each donor between primed and non-primed MPC antigen values. CD cluster differentiationBack to article page