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. 2017 Sep 21;7:12084. doi: 10.1038/s41598-017-12360-0

Figure 4.

Figure 4

Ex vivo VPA-expanded CD34+ cells exhibit increased adhesion to MSCs. (a) Freshly isolated CD34+ cells were seeded onto a confluent MSC layer. Representative images after 5 days of co-culture with MSCs showed an increase in the number of VPA-treated adherent cells (right) compared to control cells (left). Images were taken after sufficient washing with PBS. (Scale bar: 250 µm). (b) In the adhesion assay, a significantly higher number of VPA expanded cells were attached to MSCs compared to control (n = 4). (c) Schematic representation of atomic force microscopy-based single-cell force spectroscopy used to measure adhesive strength of VPA treated and control cells. (d) Plot showing detachment force measurement after 5 days of VPA or PBS (control) treatment. Adhesive strength of VPA treated cells was 2–3 fold higher than control (n = 3). Data are mean ± SD, ***p < 0.001.