Fig. 6From: Comparison of adhesion of thawed and cultured synovial mesenchymal stem cells to the porcine meniscus and the relevance of cell surface microspikesMorphology of MSCs cryopreserved in solutions containing with different concentrations of fetal bovine serum (FBS). a SEM images. Cells with microspikes are marked with arrowheads. b The proportion of cells with microspikes. Fifty cells were examined once per donor, and the results from four donors are shown independently. The proportion of MSCs with microspikes was 27 ± 6% in the 10% FBS, 52 ± 5% in the 50% FBS, and 52 ± 5% in the 95% FBS. *; p < 0.05 by Tukey’s testBack to article page